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7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net> | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | * | |
13 | */ | |
14 | ||
15 | ||
16 | #include <sstream> | |
17 | #include <stdlib.h> | |
18 | #include <signal.h> | |
19 | #include <limits.h> | |
20 | #include <cstring> | |
21 | #include <boost/scope_exit.hpp> | |
22 | #include <boost/algorithm/string/predicate.hpp> | |
23 | ||
24 | #include "Monitor.h" | |
25 | #include "common/version.h" | |
26 | ||
27 | #include "osd/OSDMap.h" | |
28 | ||
29 | #include "MonitorDBStore.h" | |
30 | ||
31 | #include "messages/PaxosServiceMessage.h" | |
32 | #include "messages/MMonMap.h" | |
33 | #include "messages/MMonGetMap.h" | |
34 | #include "messages/MMonGetVersion.h" | |
35 | #include "messages/MMonGetVersionReply.h" | |
36 | #include "messages/MGenericMessage.h" | |
37 | #include "messages/MMonCommand.h" | |
38 | #include "messages/MMonCommandAck.h" | |
31f18b77 | 39 | #include "messages/MMonHealth.h" |
7c673cae FG |
40 | #include "messages/MMonMetadata.h" |
41 | #include "messages/MMonSync.h" | |
42 | #include "messages/MMonScrub.h" | |
43 | #include "messages/MMonProbe.h" | |
44 | #include "messages/MMonJoin.h" | |
45 | #include "messages/MMonPaxos.h" | |
46 | #include "messages/MRoute.h" | |
47 | #include "messages/MForward.h" | |
48 | ||
49 | #include "messages/MMonSubscribe.h" | |
50 | #include "messages/MMonSubscribeAck.h" | |
51 | ||
52 | #include "messages/MAuthReply.h" | |
53 | ||
54 | #include "messages/MTimeCheck.h" | |
7c673cae FG |
55 | #include "messages/MPing.h" |
56 | ||
57 | #include "common/strtol.h" | |
58 | #include "common/ceph_argparse.h" | |
59 | #include "common/Timer.h" | |
60 | #include "common/Clock.h" | |
61 | #include "common/errno.h" | |
62 | #include "common/perf_counters.h" | |
63 | #include "common/admin_socket.h" | |
64 | #include "global/signal_handler.h" | |
65 | #include "common/Formatter.h" | |
66 | #include "include/stringify.h" | |
67 | #include "include/color.h" | |
68 | #include "include/ceph_fs.h" | |
69 | #include "include/str_list.h" | |
70 | ||
71 | #include "OSDMonitor.h" | |
72 | #include "MDSMonitor.h" | |
73 | #include "MonmapMonitor.h" | |
74 | #include "PGMonitor.h" | |
75 | #include "LogMonitor.h" | |
76 | #include "AuthMonitor.h" | |
77 | #include "MgrMonitor.h" | |
31f18b77 | 78 | #include "MgrStatMonitor.h" |
7c673cae | 79 | #include "mon/QuorumService.h" |
224ce89b | 80 | #include "mon/OldHealthMonitor.h" |
7c673cae FG |
81 | #include "mon/HealthMonitor.h" |
82 | #include "mon/ConfigKeyService.h" | |
83 | #include "common/config.h" | |
84 | #include "common/cmdparse.h" | |
85 | #include "include/assert.h" | |
86 | #include "include/compat.h" | |
87 | #include "perfglue/heap_profiler.h" | |
88 | ||
89 | #include "auth/none/AuthNoneClientHandler.h" | |
90 | ||
91 | #define dout_subsys ceph_subsys_mon | |
92 | #undef dout_prefix | |
93 | #define dout_prefix _prefix(_dout, this) | |
94 | static ostream& _prefix(std::ostream *_dout, const Monitor *mon) { | |
95 | return *_dout << "mon." << mon->name << "@" << mon->rank | |
96 | << "(" << mon->get_state_name() << ") e" << mon->monmap->get_epoch() << " "; | |
97 | } | |
98 | ||
99 | const string Monitor::MONITOR_NAME = "monitor"; | |
100 | const string Monitor::MONITOR_STORE_PREFIX = "monitor_store"; | |
101 | ||
102 | ||
103 | #undef FLAG | |
104 | #undef COMMAND | |
105 | #undef COMMAND_WITH_FLAG | |
7c673cae FG |
106 | #define FLAG(f) (MonCommand::FLAG_##f) |
107 | #define COMMAND(parsesig, helptext, modulename, req_perms, avail) \ | |
108 | {parsesig, helptext, modulename, req_perms, avail, FLAG(NONE)}, | |
109 | #define COMMAND_WITH_FLAG(parsesig, helptext, modulename, req_perms, avail, flags) \ | |
110 | {parsesig, helptext, modulename, req_perms, avail, flags}, | |
d2e6a577 | 111 | MonCommand mon_commands[] = { |
7c673cae | 112 | #include <mon/MonCommands.h> |
d2e6a577 FG |
113 | }; |
114 | MonCommand pgmonitor_commands[] = { | |
115 | #include <mon/PGMonitorCommands.h> | |
116 | }; | |
7c673cae FG |
117 | #undef COMMAND |
118 | #undef COMMAND_WITH_FLAG | |
7c673cae FG |
119 | |
120 | ||
7c673cae FG |
121 | void C_MonContext::finish(int r) { |
122 | if (mon->is_shutdown()) | |
123 | return; | |
124 | FunctionContext::finish(r); | |
125 | } | |
126 | ||
127 | Monitor::Monitor(CephContext* cct_, string nm, MonitorDBStore *s, | |
128 | Messenger *m, Messenger *mgr_m, MonMap *map) : | |
129 | Dispatcher(cct_), | |
130 | name(nm), | |
131 | rank(-1), | |
132 | messenger(m), | |
133 | con_self(m ? m->get_loopback_connection() : NULL), | |
134 | lock("Monitor::lock"), | |
135 | timer(cct_, lock), | |
136 | finisher(cct_, "mon_finisher", "fin"), | |
137 | cpu_tp(cct, "Monitor::cpu_tp", "cpu_tp", g_conf->mon_cpu_threads), | |
138 | has_ever_joined(false), | |
139 | logger(NULL), cluster_logger(NULL), cluster_logger_registered(false), | |
140 | monmap(map), | |
141 | log_client(cct_, messenger, monmap, LogClient::FLAG_MON), | |
142 | key_server(cct, &keyring), | |
143 | auth_cluster_required(cct, | |
144 | cct->_conf->auth_supported.empty() ? | |
145 | cct->_conf->auth_cluster_required : cct->_conf->auth_supported), | |
146 | auth_service_required(cct, | |
147 | cct->_conf->auth_supported.empty() ? | |
148 | cct->_conf->auth_service_required : cct->_conf->auth_supported ), | |
7c673cae FG |
149 | mgr_messenger(mgr_m), |
150 | mgr_client(cct_, mgr_m), | |
31f18b77 | 151 | pgservice(nullptr), |
7c673cae FG |
152 | store(s), |
153 | ||
154 | state(STATE_PROBING), | |
155 | ||
156 | elector(this), | |
157 | required_features(0), | |
158 | leader(0), | |
159 | quorum_con_features(0), | |
160 | // scrub | |
161 | scrub_version(0), | |
162 | scrub_event(NULL), | |
163 | scrub_timeout_event(NULL), | |
164 | ||
165 | // sync state | |
166 | sync_provider_count(0), | |
167 | sync_cookie(0), | |
168 | sync_full(false), | |
169 | sync_start_version(0), | |
170 | sync_timeout_event(NULL), | |
171 | sync_last_committed_floor(0), | |
172 | ||
173 | timecheck_round(0), | |
174 | timecheck_acks(0), | |
175 | timecheck_rounds_since_clean(0), | |
176 | timecheck_event(NULL), | |
177 | ||
178 | paxos_service(PAXOS_NUM), | |
179 | admin_hook(NULL), | |
180 | routed_request_tid(0), | |
181 | op_tracker(cct, true, 1) | |
182 | { | |
183 | clog = log_client.create_channel(CLOG_CHANNEL_CLUSTER); | |
184 | audit_clog = log_client.create_channel(CLOG_CHANNEL_AUDIT); | |
185 | ||
186 | update_log_clients(); | |
187 | ||
188 | paxos = new Paxos(this, "paxos"); | |
189 | ||
190 | paxos_service[PAXOS_MDSMAP] = new MDSMonitor(this, paxos, "mdsmap"); | |
191 | paxos_service[PAXOS_MONMAP] = new MonmapMonitor(this, paxos, "monmap"); | |
192 | paxos_service[PAXOS_OSDMAP] = new OSDMonitor(cct, this, paxos, "osdmap"); | |
193 | paxos_service[PAXOS_PGMAP] = new PGMonitor(this, paxos, "pgmap"); | |
194 | paxos_service[PAXOS_LOG] = new LogMonitor(this, paxos, "logm"); | |
195 | paxos_service[PAXOS_AUTH] = new AuthMonitor(this, paxos, "auth"); | |
196 | paxos_service[PAXOS_MGR] = new MgrMonitor(this, paxos, "mgr"); | |
31f18b77 | 197 | paxos_service[PAXOS_MGRSTAT] = new MgrStatMonitor(this, paxos, "mgrstat"); |
224ce89b | 198 | paxos_service[PAXOS_HEALTH] = new HealthMonitor(this, paxos, "health"); |
7c673cae | 199 | |
224ce89b | 200 | health_monitor = new OldHealthMonitor(this); |
7c673cae FG |
201 | config_key_service = new ConfigKeyService(this, paxos); |
202 | ||
203 | mon_caps = new MonCap(); | |
204 | bool r = mon_caps->parse("allow *", NULL); | |
205 | assert(r); | |
206 | ||
207 | exited_quorum = ceph_clock_now(); | |
208 | ||
d2e6a577 FG |
209 | // prepare local commands |
210 | local_mon_commands.resize(ARRAY_SIZE(mon_commands)); | |
211 | for (unsigned i = 0; i < ARRAY_SIZE(mon_commands); ++i) { | |
212 | local_mon_commands[i] = mon_commands[i]; | |
213 | } | |
214 | MonCommand::encode_vector(local_mon_commands, local_mon_commands_bl); | |
215 | ||
216 | local_upgrading_mon_commands = local_mon_commands; | |
217 | for (unsigned i = 0; i < ARRAY_SIZE(pgmonitor_commands); ++i) { | |
218 | local_upgrading_mon_commands.push_back(pgmonitor_commands[i]); | |
219 | } | |
220 | MonCommand::encode_vector(local_upgrading_mon_commands, | |
221 | local_upgrading_mon_commands_bl); | |
222 | ||
7c673cae FG |
223 | // assume our commands until we have an election. this only means |
224 | // we won't reply with EINVAL before the election; any command that | |
225 | // actually matters will wait until we have quorum etc and then | |
226 | // retry (and revalidate). | |
d2e6a577 | 227 | leader_mon_commands = local_mon_commands; |
31f18b77 FG |
228 | |
229 | // note: OSDMonitor may update this based on the luminous flag. | |
230 | pgservice = mgrstatmon()->get_pg_stat_service(); | |
7c673cae FG |
231 | } |
232 | ||
7c673cae FG |
233 | Monitor::~Monitor() |
234 | { | |
235 | for (vector<PaxosService*>::iterator p = paxos_service.begin(); p != paxos_service.end(); ++p) | |
236 | delete *p; | |
237 | delete health_monitor; | |
238 | delete config_key_service; | |
239 | delete paxos; | |
240 | assert(session_map.sessions.empty()); | |
241 | delete mon_caps; | |
7c673cae FG |
242 | } |
243 | ||
244 | ||
245 | class AdminHook : public AdminSocketHook { | |
246 | Monitor *mon; | |
247 | public: | |
248 | explicit AdminHook(Monitor *m) : mon(m) {} | |
249 | bool call(std::string command, cmdmap_t& cmdmap, std::string format, | |
250 | bufferlist& out) override { | |
251 | stringstream ss; | |
252 | mon->do_admin_command(command, cmdmap, format, ss); | |
253 | out.append(ss); | |
254 | return true; | |
255 | } | |
256 | }; | |
257 | ||
258 | void Monitor::do_admin_command(string command, cmdmap_t& cmdmap, string format, | |
259 | ostream& ss) | |
260 | { | |
261 | Mutex::Locker l(lock); | |
262 | ||
263 | boost::scoped_ptr<Formatter> f(Formatter::create(format)); | |
264 | ||
265 | string args; | |
266 | for (cmdmap_t::iterator p = cmdmap.begin(); | |
267 | p != cmdmap.end(); ++p) { | |
268 | if (p->first == "prefix") | |
269 | continue; | |
270 | if (!args.empty()) | |
271 | args += ", "; | |
272 | args += cmd_vartype_stringify(p->second); | |
273 | } | |
274 | args = "[" + args + "]"; | |
275 | ||
276 | bool read_only = (command == "mon_status" || | |
277 | command == "mon metadata" || | |
278 | command == "quorum_status" || | |
224ce89b WB |
279 | command == "ops" || |
280 | command == "sessions"); | |
7c673cae FG |
281 | |
282 | (read_only ? audit_clog->debug() : audit_clog->info()) | |
283 | << "from='admin socket' entity='admin socket' " | |
284 | << "cmd='" << command << "' args=" << args << ": dispatch"; | |
285 | ||
286 | if (command == "mon_status") { | |
287 | get_mon_status(f.get(), ss); | |
288 | if (f) | |
289 | f->flush(ss); | |
290 | } else if (command == "quorum_status") { | |
291 | _quorum_status(f.get(), ss); | |
292 | } else if (command == "sync_force") { | |
293 | string validate; | |
294 | if ((!cmd_getval(g_ceph_context, cmdmap, "validate", validate)) || | |
295 | (validate != "--yes-i-really-mean-it")) { | |
296 | ss << "are you SURE? this will mean the monitor store will be erased " | |
297 | "the next time the monitor is restarted. pass " | |
298 | "'--yes-i-really-mean-it' if you really do."; | |
299 | goto abort; | |
300 | } | |
301 | sync_force(f.get(), ss); | |
302 | } else if (command.compare(0, 23, "add_bootstrap_peer_hint") == 0) { | |
303 | if (!_add_bootstrap_peer_hint(command, cmdmap, ss)) | |
304 | goto abort; | |
305 | } else if (command == "quorum enter") { | |
306 | elector.start_participating(); | |
307 | start_election(); | |
308 | ss << "started responding to quorum, initiated new election"; | |
309 | } else if (command == "quorum exit") { | |
310 | start_election(); | |
311 | elector.stop_participating(); | |
312 | ss << "stopped responding to quorum, initiated new election"; | |
313 | } else if (command == "ops") { | |
314 | (void)op_tracker.dump_ops_in_flight(f.get()); | |
315 | if (f) { | |
316 | f->flush(ss); | |
317 | } | |
224ce89b WB |
318 | } else if (command == "sessions") { |
319 | ||
320 | if (f) { | |
321 | f->open_array_section("sessions"); | |
322 | for (auto p : session_map.sessions) { | |
323 | f->dump_stream("session") << *p; | |
324 | } | |
325 | f->close_section(); | |
326 | f->flush(ss); | |
327 | } | |
328 | ||
7c673cae FG |
329 | } else { |
330 | assert(0 == "bad AdminSocket command binding"); | |
331 | } | |
332 | (read_only ? audit_clog->debug() : audit_clog->info()) | |
333 | << "from='admin socket' " | |
334 | << "entity='admin socket' " | |
335 | << "cmd=" << command << " " | |
336 | << "args=" << args << ": finished"; | |
337 | return; | |
338 | ||
339 | abort: | |
340 | (read_only ? audit_clog->debug() : audit_clog->info()) | |
341 | << "from='admin socket' " | |
342 | << "entity='admin socket' " | |
343 | << "cmd=" << command << " " | |
344 | << "args=" << args << ": aborted"; | |
345 | } | |
346 | ||
347 | void Monitor::handle_signal(int signum) | |
348 | { | |
349 | assert(signum == SIGINT || signum == SIGTERM); | |
350 | derr << "*** Got Signal " << sig_str(signum) << " ***" << dendl; | |
351 | shutdown(); | |
352 | } | |
353 | ||
354 | CompatSet Monitor::get_initial_supported_features() | |
355 | { | |
356 | CompatSet::FeatureSet ceph_mon_feature_compat; | |
357 | CompatSet::FeatureSet ceph_mon_feature_ro_compat; | |
358 | CompatSet::FeatureSet ceph_mon_feature_incompat; | |
359 | ceph_mon_feature_incompat.insert(CEPH_MON_FEATURE_INCOMPAT_BASE); | |
360 | ceph_mon_feature_incompat.insert(CEPH_MON_FEATURE_INCOMPAT_SINGLE_PAXOS); | |
361 | return CompatSet(ceph_mon_feature_compat, ceph_mon_feature_ro_compat, | |
362 | ceph_mon_feature_incompat); | |
363 | } | |
364 | ||
365 | CompatSet Monitor::get_supported_features() | |
366 | { | |
367 | CompatSet compat = get_initial_supported_features(); | |
368 | compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_OSD_ERASURE_CODES); | |
369 | compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_OSDMAP_ENC); | |
370 | compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_ERASURE_CODE_PLUGINS_V2); | |
371 | compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_ERASURE_CODE_PLUGINS_V3); | |
372 | compat.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_KRAKEN); | |
373 | return compat; | |
374 | } | |
375 | ||
376 | CompatSet Monitor::get_legacy_features() | |
377 | { | |
378 | CompatSet::FeatureSet ceph_mon_feature_compat; | |
379 | CompatSet::FeatureSet ceph_mon_feature_ro_compat; | |
380 | CompatSet::FeatureSet ceph_mon_feature_incompat; | |
381 | ceph_mon_feature_incompat.insert(CEPH_MON_FEATURE_INCOMPAT_BASE); | |
382 | return CompatSet(ceph_mon_feature_compat, ceph_mon_feature_ro_compat, | |
383 | ceph_mon_feature_incompat); | |
384 | } | |
385 | ||
386 | int Monitor::check_features(MonitorDBStore *store) | |
387 | { | |
388 | CompatSet required = get_supported_features(); | |
389 | CompatSet ondisk; | |
390 | ||
391 | read_features_off_disk(store, &ondisk); | |
392 | ||
393 | if (!required.writeable(ondisk)) { | |
394 | CompatSet diff = required.unsupported(ondisk); | |
395 | generic_derr << "ERROR: on disk data includes unsupported features: " << diff << dendl; | |
396 | return -EPERM; | |
397 | } | |
398 | ||
399 | return 0; | |
400 | } | |
401 | ||
402 | void Monitor::read_features_off_disk(MonitorDBStore *store, CompatSet *features) | |
403 | { | |
404 | bufferlist featuresbl; | |
405 | store->get(MONITOR_NAME, COMPAT_SET_LOC, featuresbl); | |
406 | if (featuresbl.length() == 0) { | |
407 | generic_dout(0) << "WARNING: mon fs missing feature list.\n" | |
408 | << "Assuming it is old-style and introducing one." << dendl; | |
409 | //we only want the baseline ~v.18 features assumed to be on disk. | |
410 | //If new features are introduced this code needs to disappear or | |
411 | //be made smarter. | |
412 | *features = get_legacy_features(); | |
413 | ||
414 | features->encode(featuresbl); | |
415 | auto t(std::make_shared<MonitorDBStore::Transaction>()); | |
416 | t->put(MONITOR_NAME, COMPAT_SET_LOC, featuresbl); | |
417 | store->apply_transaction(t); | |
418 | } else { | |
419 | bufferlist::iterator it = featuresbl.begin(); | |
420 | features->decode(it); | |
421 | } | |
422 | } | |
423 | ||
424 | void Monitor::read_features() | |
425 | { | |
426 | read_features_off_disk(store, &features); | |
427 | dout(10) << "features " << features << dendl; | |
428 | ||
429 | calc_quorum_requirements(); | |
430 | dout(10) << "required_features " << required_features << dendl; | |
431 | } | |
432 | ||
433 | void Monitor::write_features(MonitorDBStore::TransactionRef t) | |
434 | { | |
435 | bufferlist bl; | |
436 | features.encode(bl); | |
437 | t->put(MONITOR_NAME, COMPAT_SET_LOC, bl); | |
438 | } | |
439 | ||
440 | const char** Monitor::get_tracked_conf_keys() const | |
441 | { | |
442 | static const char* KEYS[] = { | |
443 | "crushtool", // helpful for testing | |
444 | "mon_election_timeout", | |
445 | "mon_lease", | |
446 | "mon_lease_renew_interval_factor", | |
447 | "mon_lease_ack_timeout_factor", | |
448 | "mon_accept_timeout_factor", | |
449 | // clog & admin clog | |
450 | "clog_to_monitors", | |
451 | "clog_to_syslog", | |
452 | "clog_to_syslog_facility", | |
453 | "clog_to_syslog_level", | |
454 | "clog_to_graylog", | |
455 | "clog_to_graylog_host", | |
456 | "clog_to_graylog_port", | |
457 | "host", | |
458 | "fsid", | |
459 | // periodic health to clog | |
460 | "mon_health_to_clog", | |
461 | "mon_health_to_clog_interval", | |
462 | "mon_health_to_clog_tick_interval", | |
463 | // scrub interval | |
464 | "mon_scrub_interval", | |
465 | NULL | |
466 | }; | |
467 | return KEYS; | |
468 | } | |
469 | ||
470 | void Monitor::handle_conf_change(const struct md_config_t *conf, | |
471 | const std::set<std::string> &changed) | |
472 | { | |
473 | sanitize_options(); | |
474 | ||
475 | dout(10) << __func__ << " " << changed << dendl; | |
476 | ||
477 | if (changed.count("clog_to_monitors") || | |
478 | changed.count("clog_to_syslog") || | |
479 | changed.count("clog_to_syslog_level") || | |
480 | changed.count("clog_to_syslog_facility") || | |
481 | changed.count("clog_to_graylog") || | |
482 | changed.count("clog_to_graylog_host") || | |
483 | changed.count("clog_to_graylog_port") || | |
484 | changed.count("host") || | |
485 | changed.count("fsid")) { | |
486 | update_log_clients(); | |
487 | } | |
488 | ||
489 | if (changed.count("mon_health_to_clog") || | |
490 | changed.count("mon_health_to_clog_interval") || | |
491 | changed.count("mon_health_to_clog_tick_interval")) { | |
492 | health_to_clog_update_conf(changed); | |
493 | } | |
494 | ||
495 | if (changed.count("mon_scrub_interval")) { | |
496 | scrub_update_interval(conf->mon_scrub_interval); | |
497 | } | |
498 | } | |
499 | ||
500 | void Monitor::update_log_clients() | |
501 | { | |
502 | map<string,string> log_to_monitors; | |
503 | map<string,string> log_to_syslog; | |
504 | map<string,string> log_channel; | |
505 | map<string,string> log_prio; | |
506 | map<string,string> log_to_graylog; | |
507 | map<string,string> log_to_graylog_host; | |
508 | map<string,string> log_to_graylog_port; | |
509 | uuid_d fsid; | |
510 | string host; | |
511 | ||
512 | if (parse_log_client_options(g_ceph_context, log_to_monitors, log_to_syslog, | |
513 | log_channel, log_prio, log_to_graylog, | |
514 | log_to_graylog_host, log_to_graylog_port, | |
515 | fsid, host)) | |
516 | return; | |
517 | ||
518 | clog->update_config(log_to_monitors, log_to_syslog, | |
519 | log_channel, log_prio, log_to_graylog, | |
520 | log_to_graylog_host, log_to_graylog_port, | |
521 | fsid, host); | |
522 | ||
523 | audit_clog->update_config(log_to_monitors, log_to_syslog, | |
524 | log_channel, log_prio, log_to_graylog, | |
525 | log_to_graylog_host, log_to_graylog_port, | |
526 | fsid, host); | |
527 | } | |
528 | ||
529 | int Monitor::sanitize_options() | |
530 | { | |
531 | int r = 0; | |
532 | ||
533 | // mon_lease must be greater than mon_lease_renewal; otherwise we | |
534 | // may incur in leases expiring before they are renewed. | |
535 | if (g_conf->mon_lease_renew_interval_factor >= 1.0) { | |
536 | clog->error() << "mon_lease_renew_interval_factor (" | |
537 | << g_conf->mon_lease_renew_interval_factor | |
538 | << ") must be less than 1.0"; | |
539 | r = -EINVAL; | |
540 | } | |
541 | ||
542 | // mon_lease_ack_timeout must be greater than mon_lease to make sure we've | |
543 | // got time to renew the lease and get an ack for it. Having both options | |
544 | // with the same value, for a given small vale, could mean timing out if | |
545 | // the monitors happened to be overloaded -- or even under normal load for | |
546 | // a small enough value. | |
547 | if (g_conf->mon_lease_ack_timeout_factor <= 1.0) { | |
548 | clog->error() << "mon_lease_ack_timeout_factor (" | |
549 | << g_conf->mon_lease_ack_timeout_factor | |
550 | << ") must be greater than 1.0"; | |
551 | r = -EINVAL; | |
552 | } | |
553 | ||
554 | return r; | |
555 | } | |
556 | ||
557 | int Monitor::preinit() | |
558 | { | |
559 | lock.Lock(); | |
560 | ||
561 | dout(1) << "preinit fsid " << monmap->fsid << dendl; | |
562 | ||
563 | int r = sanitize_options(); | |
564 | if (r < 0) { | |
565 | derr << "option sanitization failed!" << dendl; | |
566 | lock.Unlock(); | |
567 | return r; | |
568 | } | |
569 | ||
570 | assert(!logger); | |
571 | { | |
572 | PerfCountersBuilder pcb(g_ceph_context, "mon", l_mon_first, l_mon_last); | |
573 | pcb.add_u64(l_mon_num_sessions, "num_sessions", "Open sessions", "sess"); | |
574 | pcb.add_u64_counter(l_mon_session_add, "session_add", "Created sessions", "sadd"); | |
575 | pcb.add_u64_counter(l_mon_session_rm, "session_rm", "Removed sessions", "srm"); | |
576 | pcb.add_u64_counter(l_mon_session_trim, "session_trim", "Trimmed sessions"); | |
577 | pcb.add_u64_counter(l_mon_num_elections, "num_elections", "Elections participated in"); | |
578 | pcb.add_u64_counter(l_mon_election_call, "election_call", "Elections started"); | |
579 | pcb.add_u64_counter(l_mon_election_win, "election_win", "Elections won"); | |
580 | pcb.add_u64_counter(l_mon_election_lose, "election_lose", "Elections lost"); | |
581 | logger = pcb.create_perf_counters(); | |
582 | cct->get_perfcounters_collection()->add(logger); | |
583 | } | |
584 | ||
585 | assert(!cluster_logger); | |
586 | { | |
587 | PerfCountersBuilder pcb(g_ceph_context, "cluster", l_cluster_first, l_cluster_last); | |
588 | pcb.add_u64(l_cluster_num_mon, "num_mon", "Monitors"); | |
589 | pcb.add_u64(l_cluster_num_mon_quorum, "num_mon_quorum", "Monitors in quorum"); | |
590 | pcb.add_u64(l_cluster_num_osd, "num_osd", "OSDs"); | |
591 | pcb.add_u64(l_cluster_num_osd_up, "num_osd_up", "OSDs that are up"); | |
592 | pcb.add_u64(l_cluster_num_osd_in, "num_osd_in", "OSD in state \"in\" (they are in cluster)"); | |
593 | pcb.add_u64(l_cluster_osd_epoch, "osd_epoch", "Current epoch of OSD map"); | |
594 | pcb.add_u64(l_cluster_osd_bytes, "osd_bytes", "Total capacity of cluster"); | |
595 | pcb.add_u64(l_cluster_osd_bytes_used, "osd_bytes_used", "Used space"); | |
596 | pcb.add_u64(l_cluster_osd_bytes_avail, "osd_bytes_avail", "Available space"); | |
597 | pcb.add_u64(l_cluster_num_pool, "num_pool", "Pools"); | |
598 | pcb.add_u64(l_cluster_num_pg, "num_pg", "Placement groups"); | |
599 | pcb.add_u64(l_cluster_num_pg_active_clean, "num_pg_active_clean", "Placement groups in active+clean state"); | |
600 | pcb.add_u64(l_cluster_num_pg_active, "num_pg_active", "Placement groups in active state"); | |
601 | pcb.add_u64(l_cluster_num_pg_peering, "num_pg_peering", "Placement groups in peering state"); | |
602 | pcb.add_u64(l_cluster_num_object, "num_object", "Objects"); | |
603 | pcb.add_u64(l_cluster_num_object_degraded, "num_object_degraded", "Degraded (missing replicas) objects"); | |
604 | pcb.add_u64(l_cluster_num_object_misplaced, "num_object_misplaced", "Misplaced (wrong location in the cluster) objects"); | |
605 | pcb.add_u64(l_cluster_num_object_unfound, "num_object_unfound", "Unfound objects"); | |
606 | pcb.add_u64(l_cluster_num_bytes, "num_bytes", "Size of all objects"); | |
607 | pcb.add_u64(l_cluster_num_mds_up, "num_mds_up", "MDSs that are up"); | |
608 | pcb.add_u64(l_cluster_num_mds_in, "num_mds_in", "MDS in state \"in\" (they are in cluster)"); | |
609 | pcb.add_u64(l_cluster_num_mds_failed, "num_mds_failed", "Failed MDS"); | |
610 | pcb.add_u64(l_cluster_mds_epoch, "mds_epoch", "Current epoch of MDS map"); | |
611 | cluster_logger = pcb.create_perf_counters(); | |
612 | } | |
613 | ||
614 | paxos->init_logger(); | |
615 | ||
616 | // verify cluster_uuid | |
617 | { | |
618 | int r = check_fsid(); | |
619 | if (r == -ENOENT) | |
620 | r = write_fsid(); | |
621 | if (r < 0) { | |
622 | lock.Unlock(); | |
623 | return r; | |
624 | } | |
625 | } | |
626 | ||
627 | // open compatset | |
628 | read_features(); | |
629 | ||
630 | // have we ever joined a quorum? | |
631 | has_ever_joined = (store->get(MONITOR_NAME, "joined") != 0); | |
632 | dout(10) << "has_ever_joined = " << (int)has_ever_joined << dendl; | |
633 | ||
634 | if (!has_ever_joined) { | |
635 | // impose initial quorum restrictions? | |
636 | list<string> initial_members; | |
637 | get_str_list(g_conf->mon_initial_members, initial_members); | |
638 | ||
639 | if (!initial_members.empty()) { | |
640 | dout(1) << " initial_members " << initial_members << ", filtering seed monmap" << dendl; | |
641 | ||
642 | monmap->set_initial_members(g_ceph_context, initial_members, name, messenger->get_myaddr(), | |
643 | &extra_probe_peers); | |
644 | ||
645 | dout(10) << " monmap is " << *monmap << dendl; | |
646 | dout(10) << " extra probe peers " << extra_probe_peers << dendl; | |
647 | } | |
648 | } else if (!monmap->contains(name)) { | |
649 | derr << "not in monmap and have been in a quorum before; " | |
650 | << "must have been removed" << dendl; | |
651 | if (g_conf->mon_force_quorum_join) { | |
652 | dout(0) << "we should have died but " | |
653 | << "'mon_force_quorum_join' is set -- allowing boot" << dendl; | |
654 | } else { | |
655 | derr << "commit suicide!" << dendl; | |
656 | lock.Unlock(); | |
657 | return -ENOENT; | |
658 | } | |
659 | } | |
660 | ||
661 | { | |
662 | // We have a potentially inconsistent store state in hands. Get rid of it | |
663 | // and start fresh. | |
664 | bool clear_store = false; | |
665 | if (store->exists("mon_sync", "in_sync")) { | |
666 | dout(1) << __func__ << " clean up potentially inconsistent store state" | |
667 | << dendl; | |
668 | clear_store = true; | |
669 | } | |
670 | ||
671 | if (store->get("mon_sync", "force_sync") > 0) { | |
672 | dout(1) << __func__ << " force sync by clearing store state" << dendl; | |
673 | clear_store = true; | |
674 | } | |
675 | ||
676 | if (clear_store) { | |
677 | set<string> sync_prefixes = get_sync_targets_names(); | |
678 | store->clear(sync_prefixes); | |
679 | } | |
680 | } | |
681 | ||
682 | sync_last_committed_floor = store->get("mon_sync", "last_committed_floor"); | |
683 | dout(10) << "sync_last_committed_floor " << sync_last_committed_floor << dendl; | |
684 | ||
685 | init_paxos(); | |
686 | health_monitor->init(); | |
687 | ||
688 | if (is_keyring_required()) { | |
689 | // we need to bootstrap authentication keys so we can form an | |
690 | // initial quorum. | |
691 | if (authmon()->get_last_committed() == 0) { | |
692 | dout(10) << "loading initial keyring to bootstrap authentication for mkfs" << dendl; | |
693 | bufferlist bl; | |
694 | int err = store->get("mkfs", "keyring", bl); | |
695 | if (err == 0 && bl.length() > 0) { | |
696 | // Attempt to decode and extract keyring only if it is found. | |
697 | KeyRing keyring; | |
698 | bufferlist::iterator p = bl.begin(); | |
699 | ::decode(keyring, p); | |
700 | extract_save_mon_key(keyring); | |
701 | } | |
702 | } | |
703 | ||
704 | string keyring_loc = g_conf->mon_data + "/keyring"; | |
705 | ||
706 | r = keyring.load(cct, keyring_loc); | |
707 | if (r < 0) { | |
708 | EntityName mon_name; | |
709 | mon_name.set_type(CEPH_ENTITY_TYPE_MON); | |
710 | EntityAuth mon_key; | |
711 | if (key_server.get_auth(mon_name, mon_key)) { | |
712 | dout(1) << "copying mon. key from old db to external keyring" << dendl; | |
713 | keyring.add(mon_name, mon_key); | |
714 | bufferlist bl; | |
715 | keyring.encode_plaintext(bl); | |
716 | write_default_keyring(bl); | |
717 | } else { | |
718 | derr << "unable to load initial keyring " << g_conf->keyring << dendl; | |
719 | lock.Unlock(); | |
720 | return r; | |
721 | } | |
722 | } | |
723 | } | |
724 | ||
725 | admin_hook = new AdminHook(this); | |
726 | AdminSocket* admin_socket = cct->get_admin_socket(); | |
727 | ||
728 | // unlock while registering to avoid mon_lock -> admin socket lock dependency. | |
729 | lock.Unlock(); | |
730 | r = admin_socket->register_command("mon_status", "mon_status", admin_hook, | |
731 | "show current monitor status"); | |
732 | assert(r == 0); | |
733 | r = admin_socket->register_command("quorum_status", "quorum_status", | |
734 | admin_hook, "show current quorum status"); | |
735 | assert(r == 0); | |
736 | r = admin_socket->register_command("sync_force", | |
737 | "sync_force name=validate," | |
738 | "type=CephChoices," | |
739 | "strings=--yes-i-really-mean-it", | |
740 | admin_hook, | |
741 | "force sync of and clear monitor store"); | |
742 | assert(r == 0); | |
743 | r = admin_socket->register_command("add_bootstrap_peer_hint", | |
744 | "add_bootstrap_peer_hint name=addr," | |
745 | "type=CephIPAddr", | |
746 | admin_hook, | |
747 | "add peer address as potential bootstrap" | |
748 | " peer for cluster bringup"); | |
749 | assert(r == 0); | |
750 | r = admin_socket->register_command("quorum enter", "quorum enter", | |
751 | admin_hook, | |
752 | "force monitor back into quorum"); | |
753 | assert(r == 0); | |
754 | r = admin_socket->register_command("quorum exit", "quorum exit", | |
755 | admin_hook, | |
756 | "force monitor out of the quorum"); | |
757 | assert(r == 0); | |
758 | r = admin_socket->register_command("ops", | |
759 | "ops", | |
760 | admin_hook, | |
761 | "show the ops currently in flight"); | |
762 | assert(r == 0); | |
224ce89b WB |
763 | r = admin_socket->register_command("sessions", |
764 | "sessions", | |
765 | admin_hook, | |
766 | "list existing sessions"); | |
767 | assert(r == 0); | |
7c673cae FG |
768 | |
769 | lock.Lock(); | |
770 | ||
771 | // add ourselves as a conf observer | |
772 | g_conf->add_observer(this); | |
773 | ||
774 | lock.Unlock(); | |
775 | return 0; | |
776 | } | |
777 | ||
778 | int Monitor::init() | |
779 | { | |
780 | dout(2) << "init" << dendl; | |
781 | Mutex::Locker l(lock); | |
782 | ||
783 | finisher.start(); | |
784 | ||
785 | // start ticker | |
786 | timer.init(); | |
787 | new_tick(); | |
788 | ||
789 | cpu_tp.start(); | |
790 | ||
791 | // i'm ready! | |
792 | messenger->add_dispatcher_tail(this); | |
793 | ||
794 | mgr_client.init(); | |
795 | mgr_messenger->add_dispatcher_tail(&mgr_client); | |
796 | mgr_messenger->add_dispatcher_tail(this); // for auth ms_* calls | |
797 | ||
798 | bootstrap(); | |
7c673cae FG |
799 | return 0; |
800 | } | |
801 | ||
802 | void Monitor::init_paxos() | |
803 | { | |
804 | dout(10) << __func__ << dendl; | |
805 | paxos->init(); | |
806 | ||
807 | // init services | |
808 | for (int i = 0; i < PAXOS_NUM; ++i) { | |
809 | paxos_service[i]->init(); | |
810 | } | |
811 | ||
812 | refresh_from_paxos(NULL); | |
813 | } | |
814 | ||
815 | void Monitor::refresh_from_paxos(bool *need_bootstrap) | |
816 | { | |
817 | dout(10) << __func__ << dendl; | |
818 | ||
819 | bufferlist bl; | |
820 | int r = store->get(MONITOR_NAME, "cluster_fingerprint", bl); | |
821 | if (r >= 0) { | |
822 | try { | |
823 | bufferlist::iterator p = bl.begin(); | |
824 | ::decode(fingerprint, p); | |
825 | } | |
826 | catch (buffer::error& e) { | |
827 | dout(10) << __func__ << " failed to decode cluster_fingerprint" << dendl; | |
828 | } | |
829 | } else { | |
830 | dout(10) << __func__ << " no cluster_fingerprint" << dendl; | |
831 | } | |
832 | ||
833 | for (int i = 0; i < PAXOS_NUM; ++i) { | |
834 | paxos_service[i]->refresh(need_bootstrap); | |
835 | } | |
836 | for (int i = 0; i < PAXOS_NUM; ++i) { | |
837 | paxos_service[i]->post_refresh(); | |
838 | } | |
224ce89b | 839 | load_metadata(); |
7c673cae FG |
840 | } |
841 | ||
842 | void Monitor::register_cluster_logger() | |
843 | { | |
844 | if (!cluster_logger_registered) { | |
845 | dout(10) << "register_cluster_logger" << dendl; | |
846 | cluster_logger_registered = true; | |
847 | cct->get_perfcounters_collection()->add(cluster_logger); | |
848 | } else { | |
849 | dout(10) << "register_cluster_logger - already registered" << dendl; | |
850 | } | |
851 | } | |
852 | ||
853 | void Monitor::unregister_cluster_logger() | |
854 | { | |
855 | if (cluster_logger_registered) { | |
856 | dout(10) << "unregister_cluster_logger" << dendl; | |
857 | cluster_logger_registered = false; | |
858 | cct->get_perfcounters_collection()->remove(cluster_logger); | |
859 | } else { | |
860 | dout(10) << "unregister_cluster_logger - not registered" << dendl; | |
861 | } | |
862 | } | |
863 | ||
864 | void Monitor::update_logger() | |
865 | { | |
866 | cluster_logger->set(l_cluster_num_mon, monmap->size()); | |
867 | cluster_logger->set(l_cluster_num_mon_quorum, quorum.size()); | |
868 | } | |
869 | ||
870 | void Monitor::shutdown() | |
871 | { | |
872 | dout(1) << "shutdown" << dendl; | |
873 | ||
874 | lock.Lock(); | |
875 | ||
876 | wait_for_paxos_write(); | |
877 | ||
878 | state = STATE_SHUTDOWN; | |
879 | ||
880 | g_conf->remove_observer(this); | |
881 | ||
882 | if (admin_hook) { | |
883 | AdminSocket* admin_socket = cct->get_admin_socket(); | |
884 | admin_socket->unregister_command("mon_status"); | |
885 | admin_socket->unregister_command("quorum_status"); | |
886 | admin_socket->unregister_command("sync_force"); | |
887 | admin_socket->unregister_command("add_bootstrap_peer_hint"); | |
888 | admin_socket->unregister_command("quorum enter"); | |
889 | admin_socket->unregister_command("quorum exit"); | |
890 | admin_socket->unregister_command("ops"); | |
224ce89b | 891 | admin_socket->unregister_command("sessions"); |
7c673cae FG |
892 | delete admin_hook; |
893 | admin_hook = NULL; | |
894 | } | |
895 | ||
896 | elector.shutdown(); | |
897 | ||
898 | mgr_client.shutdown(); | |
899 | ||
900 | lock.Unlock(); | |
901 | finisher.wait_for_empty(); | |
902 | finisher.stop(); | |
903 | lock.Lock(); | |
904 | ||
905 | // clean up | |
906 | paxos->shutdown(); | |
907 | for (vector<PaxosService*>::iterator p = paxos_service.begin(); p != paxos_service.end(); ++p) | |
908 | (*p)->shutdown(); | |
909 | health_monitor->shutdown(); | |
910 | ||
911 | finish_contexts(g_ceph_context, waitfor_quorum, -ECANCELED); | |
912 | finish_contexts(g_ceph_context, maybe_wait_for_quorum, -ECANCELED); | |
913 | ||
914 | timer.shutdown(); | |
915 | ||
916 | cpu_tp.stop(); | |
917 | ||
918 | remove_all_sessions(); | |
919 | ||
920 | if (logger) { | |
921 | cct->get_perfcounters_collection()->remove(logger); | |
922 | delete logger; | |
923 | logger = NULL; | |
924 | } | |
925 | if (cluster_logger) { | |
926 | if (cluster_logger_registered) | |
927 | cct->get_perfcounters_collection()->remove(cluster_logger); | |
928 | delete cluster_logger; | |
929 | cluster_logger = NULL; | |
930 | } | |
931 | ||
932 | log_client.shutdown(); | |
933 | ||
934 | // unlock before msgr shutdown... | |
935 | lock.Unlock(); | |
936 | ||
937 | messenger->shutdown(); // last thing! ceph_mon.cc will delete mon. | |
938 | mgr_messenger->shutdown(); | |
939 | } | |
940 | ||
941 | void Monitor::wait_for_paxos_write() | |
942 | { | |
943 | if (paxos->is_writing() || paxos->is_writing_previous()) { | |
944 | dout(10) << __func__ << " flushing pending write" << dendl; | |
945 | lock.Unlock(); | |
946 | store->flush(); | |
947 | lock.Lock(); | |
948 | dout(10) << __func__ << " flushed pending write" << dendl; | |
949 | } | |
950 | } | |
951 | ||
952 | void Monitor::bootstrap() | |
953 | { | |
954 | dout(10) << "bootstrap" << dendl; | |
955 | wait_for_paxos_write(); | |
956 | ||
957 | sync_reset_requester(); | |
958 | unregister_cluster_logger(); | |
959 | cancel_probe_timeout(); | |
960 | ||
961 | // note my rank | |
962 | int newrank = monmap->get_rank(messenger->get_myaddr()); | |
963 | if (newrank < 0 && rank >= 0) { | |
964 | // was i ever part of the quorum? | |
965 | if (has_ever_joined) { | |
966 | dout(0) << " removed from monmap, suicide." << dendl; | |
967 | exit(0); | |
968 | } | |
969 | } | |
970 | if (newrank != rank) { | |
971 | dout(0) << " my rank is now " << newrank << " (was " << rank << ")" << dendl; | |
972 | messenger->set_myname(entity_name_t::MON(newrank)); | |
973 | rank = newrank; | |
974 | ||
975 | // reset all connections, or else our peers will think we are someone else. | |
976 | messenger->mark_down_all(); | |
977 | } | |
978 | ||
979 | // reset | |
980 | state = STATE_PROBING; | |
981 | ||
982 | _reset(); | |
983 | ||
984 | // sync store | |
985 | if (g_conf->mon_compact_on_bootstrap) { | |
986 | dout(10) << "bootstrap -- triggering compaction" << dendl; | |
987 | store->compact(); | |
988 | dout(10) << "bootstrap -- finished compaction" << dendl; | |
989 | } | |
990 | ||
991 | // singleton monitor? | |
992 | if (monmap->size() == 1 && rank == 0) { | |
993 | win_standalone_election(); | |
994 | return; | |
995 | } | |
996 | ||
997 | reset_probe_timeout(); | |
998 | ||
999 | // i'm outside the quorum | |
1000 | if (monmap->contains(name)) | |
1001 | outside_quorum.insert(name); | |
1002 | ||
1003 | // probe monitors | |
1004 | dout(10) << "probing other monitors" << dendl; | |
1005 | for (unsigned i = 0; i < monmap->size(); i++) { | |
1006 | if ((int)i != rank) | |
1007 | messenger->send_message(new MMonProbe(monmap->fsid, MMonProbe::OP_PROBE, name, has_ever_joined), | |
1008 | monmap->get_inst(i)); | |
1009 | } | |
1010 | for (set<entity_addr_t>::iterator p = extra_probe_peers.begin(); | |
1011 | p != extra_probe_peers.end(); | |
1012 | ++p) { | |
1013 | if (*p != messenger->get_myaddr()) { | |
1014 | entity_inst_t i; | |
1015 | i.name = entity_name_t::MON(-1); | |
1016 | i.addr = *p; | |
1017 | messenger->send_message(new MMonProbe(monmap->fsid, MMonProbe::OP_PROBE, name, has_ever_joined), i); | |
1018 | } | |
1019 | } | |
1020 | } | |
1021 | ||
1022 | bool Monitor::_add_bootstrap_peer_hint(string cmd, cmdmap_t& cmdmap, ostream& ss) | |
1023 | { | |
1024 | string addrstr; | |
1025 | if (!cmd_getval(g_ceph_context, cmdmap, "addr", addrstr)) { | |
1026 | ss << "unable to parse address string value '" | |
1027 | << cmd_vartype_stringify(cmdmap["addr"]) << "'"; | |
1028 | return false; | |
1029 | } | |
1030 | dout(10) << "_add_bootstrap_peer_hint '" << cmd << "' '" | |
1031 | << addrstr << "'" << dendl; | |
1032 | ||
1033 | entity_addr_t addr; | |
1034 | const char *end = 0; | |
1035 | if (!addr.parse(addrstr.c_str(), &end)) { | |
1036 | ss << "failed to parse addr '" << addrstr << "'; syntax is 'add_bootstrap_peer_hint ip[:port]'"; | |
1037 | return false; | |
1038 | } | |
1039 | ||
1040 | if (is_leader() || is_peon()) { | |
1041 | ss << "mon already active; ignoring bootstrap hint"; | |
1042 | return true; | |
1043 | } | |
1044 | ||
1045 | if (addr.get_port() == 0) | |
1046 | addr.set_port(CEPH_MON_PORT); | |
1047 | ||
1048 | extra_probe_peers.insert(addr); | |
1049 | ss << "adding peer " << addr << " to list: " << extra_probe_peers; | |
1050 | return true; | |
1051 | } | |
1052 | ||
1053 | // called by bootstrap(), or on leader|peon -> electing | |
1054 | void Monitor::_reset() | |
1055 | { | |
1056 | dout(10) << __func__ << dendl; | |
1057 | ||
1058 | cancel_probe_timeout(); | |
1059 | timecheck_finish(); | |
1060 | health_events_cleanup(); | |
1061 | scrub_event_cancel(); | |
1062 | ||
1063 | leader_since = utime_t(); | |
1064 | if (!quorum.empty()) { | |
1065 | exited_quorum = ceph_clock_now(); | |
1066 | } | |
1067 | quorum.clear(); | |
1068 | outside_quorum.clear(); | |
31f18b77 | 1069 | quorum_feature_map.clear(); |
7c673cae FG |
1070 | |
1071 | scrub_reset(); | |
1072 | ||
1073 | paxos->restart(); | |
1074 | ||
1075 | for (vector<PaxosService*>::iterator p = paxos_service.begin(); p != paxos_service.end(); ++p) | |
1076 | (*p)->restart(); | |
1077 | health_monitor->finish(); | |
1078 | } | |
1079 | ||
1080 | ||
1081 | // ----------------------------------------------------------- | |
1082 | // sync | |
1083 | ||
1084 | set<string> Monitor::get_sync_targets_names() | |
1085 | { | |
1086 | set<string> targets; | |
1087 | targets.insert(paxos->get_name()); | |
1088 | for (int i = 0; i < PAXOS_NUM; ++i) | |
1089 | paxos_service[i]->get_store_prefixes(targets); | |
1090 | ConfigKeyService *config_key_service_ptr = dynamic_cast<ConfigKeyService*>(config_key_service); | |
1091 | assert(config_key_service_ptr); | |
1092 | config_key_service_ptr->get_store_prefixes(targets); | |
1093 | return targets; | |
1094 | } | |
1095 | ||
1096 | ||
1097 | void Monitor::sync_timeout() | |
1098 | { | |
1099 | dout(10) << __func__ << dendl; | |
1100 | assert(state == STATE_SYNCHRONIZING); | |
1101 | bootstrap(); | |
1102 | } | |
1103 | ||
1104 | void Monitor::sync_obtain_latest_monmap(bufferlist &bl) | |
1105 | { | |
1106 | dout(1) << __func__ << dendl; | |
1107 | ||
1108 | MonMap latest_monmap; | |
1109 | ||
1110 | // Grab latest monmap from MonmapMonitor | |
1111 | bufferlist monmon_bl; | |
1112 | int err = monmon()->get_monmap(monmon_bl); | |
1113 | if (err < 0) { | |
1114 | if (err != -ENOENT) { | |
1115 | derr << __func__ | |
1116 | << " something wrong happened while reading the store: " | |
1117 | << cpp_strerror(err) << dendl; | |
1118 | assert(0 == "error reading the store"); | |
1119 | } | |
1120 | } else { | |
1121 | latest_monmap.decode(monmon_bl); | |
1122 | } | |
1123 | ||
1124 | // Grab last backed up monmap (if any) and compare epochs | |
1125 | if (store->exists("mon_sync", "latest_monmap")) { | |
1126 | bufferlist backup_bl; | |
1127 | int err = store->get("mon_sync", "latest_monmap", backup_bl); | |
1128 | if (err < 0) { | |
1129 | derr << __func__ | |
1130 | << " something wrong happened while reading the store: " | |
1131 | << cpp_strerror(err) << dendl; | |
1132 | assert(0 == "error reading the store"); | |
1133 | } | |
1134 | assert(backup_bl.length() > 0); | |
1135 | ||
1136 | MonMap backup_monmap; | |
1137 | backup_monmap.decode(backup_bl); | |
1138 | ||
1139 | if (backup_monmap.epoch > latest_monmap.epoch) | |
1140 | latest_monmap = backup_monmap; | |
1141 | } | |
1142 | ||
1143 | // Check if our current monmap's epoch is greater than the one we've | |
1144 | // got so far. | |
1145 | if (monmap->epoch > latest_monmap.epoch) | |
1146 | latest_monmap = *monmap; | |
1147 | ||
1148 | dout(1) << __func__ << " obtained monmap e" << latest_monmap.epoch << dendl; | |
1149 | ||
1150 | latest_monmap.encode(bl, CEPH_FEATURES_ALL); | |
1151 | } | |
1152 | ||
1153 | void Monitor::sync_reset_requester() | |
1154 | { | |
1155 | dout(10) << __func__ << dendl; | |
1156 | ||
1157 | if (sync_timeout_event) { | |
1158 | timer.cancel_event(sync_timeout_event); | |
1159 | sync_timeout_event = NULL; | |
1160 | } | |
1161 | ||
1162 | sync_provider = entity_inst_t(); | |
1163 | sync_cookie = 0; | |
1164 | sync_full = false; | |
1165 | sync_start_version = 0; | |
1166 | } | |
1167 | ||
1168 | void Monitor::sync_reset_provider() | |
1169 | { | |
1170 | dout(10) << __func__ << dendl; | |
1171 | sync_providers.clear(); | |
1172 | } | |
1173 | ||
1174 | void Monitor::sync_start(entity_inst_t &other, bool full) | |
1175 | { | |
1176 | dout(10) << __func__ << " " << other << (full ? " full" : " recent") << dendl; | |
1177 | ||
1178 | assert(state == STATE_PROBING || | |
1179 | state == STATE_SYNCHRONIZING); | |
1180 | state = STATE_SYNCHRONIZING; | |
1181 | ||
1182 | // make sure are not a provider for anyone! | |
1183 | sync_reset_provider(); | |
1184 | ||
1185 | sync_full = full; | |
1186 | ||
1187 | if (sync_full) { | |
1188 | // stash key state, and mark that we are syncing | |
1189 | auto t(std::make_shared<MonitorDBStore::Transaction>()); | |
1190 | sync_stash_critical_state(t); | |
1191 | t->put("mon_sync", "in_sync", 1); | |
1192 | ||
1193 | sync_last_committed_floor = MAX(sync_last_committed_floor, paxos->get_version()); | |
1194 | dout(10) << __func__ << " marking sync in progress, storing sync_last_committed_floor " | |
1195 | << sync_last_committed_floor << dendl; | |
1196 | t->put("mon_sync", "last_committed_floor", sync_last_committed_floor); | |
1197 | ||
1198 | store->apply_transaction(t); | |
1199 | ||
1200 | assert(g_conf->mon_sync_requester_kill_at != 1); | |
1201 | ||
1202 | // clear the underlying store | |
1203 | set<string> targets = get_sync_targets_names(); | |
1204 | dout(10) << __func__ << " clearing prefixes " << targets << dendl; | |
1205 | store->clear(targets); | |
1206 | ||
1207 | // make sure paxos knows it has been reset. this prevents a | |
1208 | // bootstrap and then different probe reply order from possibly | |
1209 | // deciding a partial or no sync is needed. | |
1210 | paxos->init(); | |
1211 | ||
1212 | assert(g_conf->mon_sync_requester_kill_at != 2); | |
1213 | } | |
1214 | ||
1215 | // assume 'other' as the leader. We will update the leader once we receive | |
1216 | // a reply to the sync start. | |
1217 | sync_provider = other; | |
1218 | ||
1219 | sync_reset_timeout(); | |
1220 | ||
1221 | MMonSync *m = new MMonSync(sync_full ? MMonSync::OP_GET_COOKIE_FULL : MMonSync::OP_GET_COOKIE_RECENT); | |
1222 | if (!sync_full) | |
1223 | m->last_committed = paxos->get_version(); | |
1224 | messenger->send_message(m, sync_provider); | |
1225 | } | |
1226 | ||
1227 | void Monitor::sync_stash_critical_state(MonitorDBStore::TransactionRef t) | |
1228 | { | |
1229 | dout(10) << __func__ << dendl; | |
1230 | bufferlist backup_monmap; | |
1231 | sync_obtain_latest_monmap(backup_monmap); | |
1232 | assert(backup_monmap.length() > 0); | |
1233 | t->put("mon_sync", "latest_monmap", backup_monmap); | |
1234 | } | |
1235 | ||
1236 | void Monitor::sync_reset_timeout() | |
1237 | { | |
1238 | dout(10) << __func__ << dendl; | |
1239 | if (sync_timeout_event) | |
1240 | timer.cancel_event(sync_timeout_event); | |
1241 | sync_timeout_event = new C_MonContext(this, [this](int) { | |
1242 | sync_timeout(); | |
1243 | }); | |
1244 | timer.add_event_after(g_conf->mon_sync_timeout, sync_timeout_event); | |
1245 | } | |
1246 | ||
1247 | void Monitor::sync_finish(version_t last_committed) | |
1248 | { | |
1249 | dout(10) << __func__ << " lc " << last_committed << " from " << sync_provider << dendl; | |
1250 | ||
1251 | assert(g_conf->mon_sync_requester_kill_at != 7); | |
1252 | ||
1253 | if (sync_full) { | |
1254 | // finalize the paxos commits | |
1255 | auto tx(std::make_shared<MonitorDBStore::Transaction>()); | |
1256 | paxos->read_and_prepare_transactions(tx, sync_start_version, | |
1257 | last_committed); | |
1258 | tx->put(paxos->get_name(), "last_committed", last_committed); | |
1259 | ||
1260 | dout(30) << __func__ << " final tx dump:\n"; | |
1261 | JSONFormatter f(true); | |
1262 | tx->dump(&f); | |
1263 | f.flush(*_dout); | |
1264 | *_dout << dendl; | |
1265 | ||
1266 | store->apply_transaction(tx); | |
1267 | } | |
1268 | ||
1269 | assert(g_conf->mon_sync_requester_kill_at != 8); | |
1270 | ||
1271 | auto t(std::make_shared<MonitorDBStore::Transaction>()); | |
1272 | t->erase("mon_sync", "in_sync"); | |
1273 | t->erase("mon_sync", "force_sync"); | |
1274 | t->erase("mon_sync", "last_committed_floor"); | |
1275 | store->apply_transaction(t); | |
1276 | ||
1277 | assert(g_conf->mon_sync_requester_kill_at != 9); | |
1278 | ||
1279 | init_paxos(); | |
1280 | ||
1281 | assert(g_conf->mon_sync_requester_kill_at != 10); | |
1282 | ||
1283 | bootstrap(); | |
1284 | } | |
1285 | ||
1286 | void Monitor::handle_sync(MonOpRequestRef op) | |
1287 | { | |
1288 | MMonSync *m = static_cast<MMonSync*>(op->get_req()); | |
1289 | dout(10) << __func__ << " " << *m << dendl; | |
1290 | switch (m->op) { | |
1291 | ||
1292 | // provider --------- | |
1293 | ||
1294 | case MMonSync::OP_GET_COOKIE_FULL: | |
1295 | case MMonSync::OP_GET_COOKIE_RECENT: | |
1296 | handle_sync_get_cookie(op); | |
1297 | break; | |
1298 | case MMonSync::OP_GET_CHUNK: | |
1299 | handle_sync_get_chunk(op); | |
1300 | break; | |
1301 | ||
1302 | // client ----------- | |
1303 | ||
1304 | case MMonSync::OP_COOKIE: | |
1305 | handle_sync_cookie(op); | |
1306 | break; | |
1307 | ||
1308 | case MMonSync::OP_CHUNK: | |
1309 | case MMonSync::OP_LAST_CHUNK: | |
1310 | handle_sync_chunk(op); | |
1311 | break; | |
1312 | case MMonSync::OP_NO_COOKIE: | |
1313 | handle_sync_no_cookie(op); | |
1314 | break; | |
1315 | ||
1316 | default: | |
1317 | dout(0) << __func__ << " unknown op " << m->op << dendl; | |
1318 | assert(0 == "unknown op"); | |
1319 | } | |
1320 | } | |
1321 | ||
1322 | // leader | |
1323 | ||
1324 | void Monitor::_sync_reply_no_cookie(MonOpRequestRef op) | |
1325 | { | |
1326 | MMonSync *m = static_cast<MMonSync*>(op->get_req()); | |
1327 | MMonSync *reply = new MMonSync(MMonSync::OP_NO_COOKIE, m->cookie); | |
1328 | m->get_connection()->send_message(reply); | |
1329 | } | |
1330 | ||
1331 | void Monitor::handle_sync_get_cookie(MonOpRequestRef op) | |
1332 | { | |
1333 | MMonSync *m = static_cast<MMonSync*>(op->get_req()); | |
1334 | if (is_synchronizing()) { | |
1335 | _sync_reply_no_cookie(op); | |
1336 | return; | |
1337 | } | |
1338 | ||
1339 | assert(g_conf->mon_sync_provider_kill_at != 1); | |
1340 | ||
1341 | // make sure they can understand us. | |
1342 | if ((required_features ^ m->get_connection()->get_features()) & | |
1343 | required_features) { | |
1344 | dout(5) << " ignoring peer mon." << m->get_source().num() | |
1345 | << " has features " << std::hex | |
1346 | << m->get_connection()->get_features() | |
1347 | << " but we require " << required_features << std::dec << dendl; | |
1348 | return; | |
1349 | } | |
1350 | ||
1351 | // make up a unique cookie. include election epoch (which persists | |
1352 | // across restarts for the whole cluster) and a counter for this | |
1353 | // process instance. there is no need to be unique *across* | |
1354 | // monitors, though. | |
1355 | uint64_t cookie = ((unsigned long long)elector.get_epoch() << 24) + ++sync_provider_count; | |
1356 | assert(sync_providers.count(cookie) == 0); | |
1357 | ||
1358 | dout(10) << __func__ << " cookie " << cookie << " for " << m->get_source_inst() << dendl; | |
1359 | ||
1360 | SyncProvider& sp = sync_providers[cookie]; | |
1361 | sp.cookie = cookie; | |
1362 | sp.entity = m->get_source_inst(); | |
1363 | sp.reset_timeout(g_ceph_context, g_conf->mon_sync_timeout * 2); | |
1364 | ||
1365 | set<string> sync_targets; | |
1366 | if (m->op == MMonSync::OP_GET_COOKIE_FULL) { | |
1367 | // full scan | |
1368 | sync_targets = get_sync_targets_names(); | |
1369 | sp.last_committed = paxos->get_version(); | |
1370 | sp.synchronizer = store->get_synchronizer(sp.last_key, sync_targets); | |
1371 | sp.full = true; | |
1372 | dout(10) << __func__ << " will sync prefixes " << sync_targets << dendl; | |
1373 | } else { | |
1374 | // just catch up paxos | |
1375 | sp.last_committed = m->last_committed; | |
1376 | } | |
1377 | dout(10) << __func__ << " will sync from version " << sp.last_committed << dendl; | |
1378 | ||
1379 | MMonSync *reply = new MMonSync(MMonSync::OP_COOKIE, sp.cookie); | |
1380 | reply->last_committed = sp.last_committed; | |
1381 | m->get_connection()->send_message(reply); | |
1382 | } | |
1383 | ||
1384 | void Monitor::handle_sync_get_chunk(MonOpRequestRef op) | |
1385 | { | |
1386 | MMonSync *m = static_cast<MMonSync*>(op->get_req()); | |
1387 | dout(10) << __func__ << " " << *m << dendl; | |
1388 | ||
1389 | if (sync_providers.count(m->cookie) == 0) { | |
1390 | dout(10) << __func__ << " no cookie " << m->cookie << dendl; | |
1391 | _sync_reply_no_cookie(op); | |
1392 | return; | |
1393 | } | |
1394 | ||
1395 | assert(g_conf->mon_sync_provider_kill_at != 2); | |
1396 | ||
1397 | SyncProvider& sp = sync_providers[m->cookie]; | |
1398 | sp.reset_timeout(g_ceph_context, g_conf->mon_sync_timeout * 2); | |
1399 | ||
1400 | if (sp.last_committed < paxos->get_first_committed() && | |
1401 | paxos->get_first_committed() > 1) { | |
1402 | dout(10) << __func__ << " sync requester fell behind paxos, their lc " << sp.last_committed | |
1403 | << " < our fc " << paxos->get_first_committed() << dendl; | |
1404 | sync_providers.erase(m->cookie); | |
1405 | _sync_reply_no_cookie(op); | |
1406 | return; | |
1407 | } | |
1408 | ||
1409 | MMonSync *reply = new MMonSync(MMonSync::OP_CHUNK, sp.cookie); | |
1410 | auto tx(std::make_shared<MonitorDBStore::Transaction>()); | |
1411 | ||
1412 | int left = g_conf->mon_sync_max_payload_size; | |
1413 | while (sp.last_committed < paxos->get_version() && left > 0) { | |
1414 | bufferlist bl; | |
1415 | sp.last_committed++; | |
224ce89b WB |
1416 | |
1417 | int err = store->get(paxos->get_name(), sp.last_committed, bl); | |
1418 | assert(err == 0); | |
1419 | ||
7c673cae FG |
1420 | tx->put(paxos->get_name(), sp.last_committed, bl); |
1421 | left -= bl.length(); | |
1422 | dout(20) << __func__ << " including paxos state " << sp.last_committed | |
1423 | << dendl; | |
1424 | } | |
1425 | reply->last_committed = sp.last_committed; | |
1426 | ||
1427 | if (sp.full && left > 0) { | |
1428 | sp.synchronizer->get_chunk_tx(tx, left); | |
1429 | sp.last_key = sp.synchronizer->get_last_key(); | |
1430 | reply->last_key = sp.last_key; | |
1431 | } | |
1432 | ||
1433 | if ((sp.full && sp.synchronizer->has_next_chunk()) || | |
1434 | sp.last_committed < paxos->get_version()) { | |
1435 | dout(10) << __func__ << " chunk, through version " << sp.last_committed | |
1436 | << " key " << sp.last_key << dendl; | |
1437 | } else { | |
1438 | dout(10) << __func__ << " last chunk, through version " << sp.last_committed | |
1439 | << " key " << sp.last_key << dendl; | |
1440 | reply->op = MMonSync::OP_LAST_CHUNK; | |
1441 | ||
1442 | assert(g_conf->mon_sync_provider_kill_at != 3); | |
1443 | ||
1444 | // clean up our local state | |
1445 | sync_providers.erase(sp.cookie); | |
1446 | } | |
1447 | ||
1448 | ::encode(*tx, reply->chunk_bl); | |
1449 | ||
1450 | m->get_connection()->send_message(reply); | |
1451 | } | |
1452 | ||
1453 | // requester | |
1454 | ||
1455 | void Monitor::handle_sync_cookie(MonOpRequestRef op) | |
1456 | { | |
1457 | MMonSync *m = static_cast<MMonSync*>(op->get_req()); | |
1458 | dout(10) << __func__ << " " << *m << dendl; | |
1459 | if (sync_cookie) { | |
1460 | dout(10) << __func__ << " already have a cookie, ignoring" << dendl; | |
1461 | return; | |
1462 | } | |
1463 | if (m->get_source_inst() != sync_provider) { | |
1464 | dout(10) << __func__ << " source does not match, discarding" << dendl; | |
1465 | return; | |
1466 | } | |
1467 | sync_cookie = m->cookie; | |
1468 | sync_start_version = m->last_committed; | |
1469 | ||
1470 | sync_reset_timeout(); | |
1471 | sync_get_next_chunk(); | |
1472 | ||
1473 | assert(g_conf->mon_sync_requester_kill_at != 3); | |
1474 | } | |
1475 | ||
1476 | void Monitor::sync_get_next_chunk() | |
1477 | { | |
1478 | dout(20) << __func__ << " cookie " << sync_cookie << " provider " << sync_provider << dendl; | |
1479 | if (g_conf->mon_inject_sync_get_chunk_delay > 0) { | |
1480 | dout(20) << __func__ << " injecting delay of " << g_conf->mon_inject_sync_get_chunk_delay << dendl; | |
1481 | usleep((long long)(g_conf->mon_inject_sync_get_chunk_delay * 1000000.0)); | |
1482 | } | |
1483 | MMonSync *r = new MMonSync(MMonSync::OP_GET_CHUNK, sync_cookie); | |
1484 | messenger->send_message(r, sync_provider); | |
1485 | ||
1486 | assert(g_conf->mon_sync_requester_kill_at != 4); | |
1487 | } | |
1488 | ||
1489 | void Monitor::handle_sync_chunk(MonOpRequestRef op) | |
1490 | { | |
1491 | MMonSync *m = static_cast<MMonSync*>(op->get_req()); | |
1492 | dout(10) << __func__ << " " << *m << dendl; | |
1493 | ||
1494 | if (m->cookie != sync_cookie) { | |
1495 | dout(10) << __func__ << " cookie does not match, discarding" << dendl; | |
1496 | return; | |
1497 | } | |
1498 | if (m->get_source_inst() != sync_provider) { | |
1499 | dout(10) << __func__ << " source does not match, discarding" << dendl; | |
1500 | return; | |
1501 | } | |
1502 | ||
1503 | assert(state == STATE_SYNCHRONIZING); | |
1504 | assert(g_conf->mon_sync_requester_kill_at != 5); | |
1505 | ||
1506 | auto tx(std::make_shared<MonitorDBStore::Transaction>()); | |
1507 | tx->append_from_encoded(m->chunk_bl); | |
1508 | ||
1509 | dout(30) << __func__ << " tx dump:\n"; | |
1510 | JSONFormatter f(true); | |
1511 | tx->dump(&f); | |
1512 | f.flush(*_dout); | |
1513 | *_dout << dendl; | |
1514 | ||
1515 | store->apply_transaction(tx); | |
1516 | ||
1517 | assert(g_conf->mon_sync_requester_kill_at != 6); | |
1518 | ||
1519 | if (!sync_full) { | |
1520 | dout(10) << __func__ << " applying recent paxos transactions as we go" << dendl; | |
1521 | auto tx(std::make_shared<MonitorDBStore::Transaction>()); | |
1522 | paxos->read_and_prepare_transactions(tx, paxos->get_version() + 1, | |
1523 | m->last_committed); | |
1524 | tx->put(paxos->get_name(), "last_committed", m->last_committed); | |
1525 | ||
1526 | dout(30) << __func__ << " tx dump:\n"; | |
1527 | JSONFormatter f(true); | |
1528 | tx->dump(&f); | |
1529 | f.flush(*_dout); | |
1530 | *_dout << dendl; | |
1531 | ||
1532 | store->apply_transaction(tx); | |
1533 | paxos->init(); // to refresh what we just wrote | |
1534 | } | |
1535 | ||
1536 | if (m->op == MMonSync::OP_CHUNK) { | |
1537 | sync_reset_timeout(); | |
1538 | sync_get_next_chunk(); | |
1539 | } else if (m->op == MMonSync::OP_LAST_CHUNK) { | |
1540 | sync_finish(m->last_committed); | |
1541 | } | |
1542 | } | |
1543 | ||
1544 | void Monitor::handle_sync_no_cookie(MonOpRequestRef op) | |
1545 | { | |
1546 | dout(10) << __func__ << dendl; | |
1547 | bootstrap(); | |
1548 | } | |
1549 | ||
1550 | void Monitor::sync_trim_providers() | |
1551 | { | |
1552 | dout(20) << __func__ << dendl; | |
1553 | ||
1554 | utime_t now = ceph_clock_now(); | |
1555 | map<uint64_t,SyncProvider>::iterator p = sync_providers.begin(); | |
1556 | while (p != sync_providers.end()) { | |
1557 | if (now > p->second.timeout) { | |
1558 | dout(10) << __func__ << " expiring cookie " << p->second.cookie << " for " << p->second.entity << dendl; | |
1559 | sync_providers.erase(p++); | |
1560 | } else { | |
1561 | ++p; | |
1562 | } | |
1563 | } | |
1564 | } | |
1565 | ||
1566 | // --------------------------------------------------- | |
1567 | // probe | |
1568 | ||
1569 | void Monitor::cancel_probe_timeout() | |
1570 | { | |
1571 | if (probe_timeout_event) { | |
1572 | dout(10) << "cancel_probe_timeout " << probe_timeout_event << dendl; | |
1573 | timer.cancel_event(probe_timeout_event); | |
1574 | probe_timeout_event = NULL; | |
1575 | } else { | |
1576 | dout(10) << "cancel_probe_timeout (none scheduled)" << dendl; | |
1577 | } | |
1578 | } | |
1579 | ||
1580 | void Monitor::reset_probe_timeout() | |
1581 | { | |
1582 | cancel_probe_timeout(); | |
1583 | probe_timeout_event = new C_MonContext(this, [this](int r) { | |
1584 | probe_timeout(r); | |
1585 | }); | |
1586 | double t = g_conf->mon_probe_timeout; | |
1587 | timer.add_event_after(t, probe_timeout_event); | |
1588 | dout(10) << "reset_probe_timeout " << probe_timeout_event << " after " << t << " seconds" << dendl; | |
1589 | } | |
1590 | ||
1591 | void Monitor::probe_timeout(int r) | |
1592 | { | |
1593 | dout(4) << "probe_timeout " << probe_timeout_event << dendl; | |
1594 | assert(is_probing() || is_synchronizing()); | |
1595 | assert(probe_timeout_event); | |
1596 | probe_timeout_event = NULL; | |
1597 | bootstrap(); | |
1598 | } | |
1599 | ||
1600 | void Monitor::handle_probe(MonOpRequestRef op) | |
1601 | { | |
1602 | MMonProbe *m = static_cast<MMonProbe*>(op->get_req()); | |
1603 | dout(10) << "handle_probe " << *m << dendl; | |
1604 | ||
1605 | if (m->fsid != monmap->fsid) { | |
1606 | dout(0) << "handle_probe ignoring fsid " << m->fsid << " != " << monmap->fsid << dendl; | |
1607 | return; | |
1608 | } | |
1609 | ||
1610 | switch (m->op) { | |
1611 | case MMonProbe::OP_PROBE: | |
1612 | handle_probe_probe(op); | |
1613 | break; | |
1614 | ||
1615 | case MMonProbe::OP_REPLY: | |
1616 | handle_probe_reply(op); | |
1617 | break; | |
1618 | ||
1619 | case MMonProbe::OP_MISSING_FEATURES: | |
1620 | derr << __func__ << " missing features, have " << CEPH_FEATURES_ALL | |
1621 | << ", required " << m->required_features | |
1622 | << ", missing " << (m->required_features & ~CEPH_FEATURES_ALL) | |
1623 | << dendl; | |
1624 | break; | |
1625 | } | |
1626 | } | |
1627 | ||
1628 | void Monitor::handle_probe_probe(MonOpRequestRef op) | |
1629 | { | |
1630 | MMonProbe *m = static_cast<MMonProbe*>(op->get_req()); | |
1631 | ||
1632 | dout(10) << "handle_probe_probe " << m->get_source_inst() << *m | |
1633 | << " features " << m->get_connection()->get_features() << dendl; | |
1634 | uint64_t missing = required_features & ~m->get_connection()->get_features(); | |
1635 | if (missing) { | |
1636 | dout(1) << " peer " << m->get_source_addr() << " missing features " | |
1637 | << missing << dendl; | |
1638 | if (m->get_connection()->has_feature(CEPH_FEATURE_OSD_PRIMARY_AFFINITY)) { | |
1639 | MMonProbe *r = new MMonProbe(monmap->fsid, MMonProbe::OP_MISSING_FEATURES, | |
1640 | name, has_ever_joined); | |
1641 | m->required_features = required_features; | |
1642 | m->get_connection()->send_message(r); | |
1643 | } | |
1644 | goto out; | |
1645 | } | |
1646 | ||
1647 | if (!is_probing() && !is_synchronizing()) { | |
1648 | // If the probing mon is way ahead of us, we need to re-bootstrap. | |
1649 | // Normally we capture this case when we initially bootstrap, but | |
1650 | // it is possible we pass those checks (we overlap with | |
1651 | // quorum-to-be) but fail to join a quorum before it moves past | |
1652 | // us. We need to be kicked back to bootstrap so we can | |
1653 | // synchonize, not keep calling elections. | |
1654 | if (paxos->get_version() + 1 < m->paxos_first_version) { | |
1655 | dout(1) << " peer " << m->get_source_addr() << " has first_committed " | |
1656 | << "ahead of us, re-bootstrapping" << dendl; | |
1657 | bootstrap(); | |
1658 | goto out; | |
1659 | ||
1660 | } | |
1661 | } | |
1662 | ||
1663 | MMonProbe *r; | |
1664 | r = new MMonProbe(monmap->fsid, MMonProbe::OP_REPLY, name, has_ever_joined); | |
1665 | r->name = name; | |
1666 | r->quorum = quorum; | |
1667 | monmap->encode(r->monmap_bl, m->get_connection()->get_features()); | |
1668 | r->paxos_first_version = paxos->get_first_committed(); | |
1669 | r->paxos_last_version = paxos->get_version(); | |
1670 | m->get_connection()->send_message(r); | |
1671 | ||
1672 | // did we discover a peer here? | |
1673 | if (!monmap->contains(m->get_source_addr())) { | |
1674 | dout(1) << " adding peer " << m->get_source_addr() | |
1675 | << " to list of hints" << dendl; | |
1676 | extra_probe_peers.insert(m->get_source_addr()); | |
1677 | } | |
1678 | ||
1679 | out: | |
1680 | return; | |
1681 | } | |
1682 | ||
1683 | void Monitor::handle_probe_reply(MonOpRequestRef op) | |
1684 | { | |
1685 | MMonProbe *m = static_cast<MMonProbe*>(op->get_req()); | |
1686 | dout(10) << "handle_probe_reply " << m->get_source_inst() << *m << dendl; | |
1687 | dout(10) << " monmap is " << *monmap << dendl; | |
1688 | ||
1689 | // discover name and addrs during probing or electing states. | |
1690 | if (!is_probing() && !is_electing()) { | |
1691 | return; | |
1692 | } | |
1693 | ||
1694 | // newer map, or they've joined a quorum and we haven't? | |
1695 | bufferlist mybl; | |
1696 | monmap->encode(mybl, m->get_connection()->get_features()); | |
1697 | // make sure it's actually different; the checks below err toward | |
1698 | // taking the other guy's map, which could cause us to loop. | |
1699 | if (!mybl.contents_equal(m->monmap_bl)) { | |
1700 | MonMap *newmap = new MonMap; | |
1701 | newmap->decode(m->monmap_bl); | |
1702 | if (m->has_ever_joined && (newmap->get_epoch() > monmap->get_epoch() || | |
1703 | !has_ever_joined)) { | |
1704 | dout(10) << " got newer/committed monmap epoch " << newmap->get_epoch() | |
1705 | << ", mine was " << monmap->get_epoch() << dendl; | |
1706 | delete newmap; | |
1707 | monmap->decode(m->monmap_bl); | |
1708 | ||
1709 | bootstrap(); | |
1710 | return; | |
1711 | } | |
1712 | delete newmap; | |
1713 | } | |
1714 | ||
1715 | // rename peer? | |
1716 | string peer_name = monmap->get_name(m->get_source_addr()); | |
1717 | if (monmap->get_epoch() == 0 && peer_name.compare(0, 7, "noname-") == 0) { | |
1718 | dout(10) << " renaming peer " << m->get_source_addr() << " " | |
1719 | << peer_name << " -> " << m->name << " in my monmap" | |
1720 | << dendl; | |
1721 | monmap->rename(peer_name, m->name); | |
1722 | ||
1723 | if (is_electing()) { | |
1724 | bootstrap(); | |
1725 | return; | |
1726 | } | |
1727 | } else { | |
1728 | dout(10) << " peer name is " << peer_name << dendl; | |
1729 | } | |
1730 | ||
1731 | // new initial peer? | |
1732 | if (monmap->get_epoch() == 0 && | |
1733 | monmap->contains(m->name) && | |
1734 | monmap->get_addr(m->name).is_blank_ip()) { | |
1735 | dout(1) << " learned initial mon " << m->name << " addr " << m->get_source_addr() << dendl; | |
1736 | monmap->set_addr(m->name, m->get_source_addr()); | |
1737 | ||
1738 | bootstrap(); | |
1739 | return; | |
1740 | } | |
1741 | ||
1742 | // end discover phase | |
1743 | if (!is_probing()) { | |
1744 | return; | |
1745 | } | |
1746 | ||
1747 | assert(paxos != NULL); | |
1748 | ||
1749 | if (is_synchronizing()) { | |
1750 | dout(10) << " currently syncing" << dendl; | |
1751 | return; | |
1752 | } | |
1753 | ||
1754 | entity_inst_t other = m->get_source_inst(); | |
1755 | ||
1756 | if (m->paxos_last_version < sync_last_committed_floor) { | |
1757 | dout(10) << " peer paxos versions [" << m->paxos_first_version | |
1758 | << "," << m->paxos_last_version << "] < my sync_last_committed_floor " | |
1759 | << sync_last_committed_floor << ", ignoring" | |
1760 | << dendl; | |
1761 | } else { | |
1762 | if (paxos->get_version() < m->paxos_first_version && | |
1763 | m->paxos_first_version > 1) { // no need to sync if we're 0 and they start at 1. | |
1764 | dout(10) << " peer paxos first versions [" << m->paxos_first_version | |
1765 | << "," << m->paxos_last_version << "]" | |
1766 | << " vs my version " << paxos->get_version() | |
1767 | << " (too far ahead)" | |
1768 | << dendl; | |
1769 | cancel_probe_timeout(); | |
1770 | sync_start(other, true); | |
1771 | return; | |
1772 | } | |
1773 | if (paxos->get_version() + g_conf->paxos_max_join_drift < m->paxos_last_version) { | |
1774 | dout(10) << " peer paxos last version " << m->paxos_last_version | |
1775 | << " vs my version " << paxos->get_version() | |
1776 | << " (too far ahead)" | |
1777 | << dendl; | |
1778 | cancel_probe_timeout(); | |
1779 | sync_start(other, false); | |
1780 | return; | |
1781 | } | |
1782 | } | |
1783 | ||
1784 | // is there an existing quorum? | |
1785 | if (m->quorum.size()) { | |
1786 | dout(10) << " existing quorum " << m->quorum << dendl; | |
1787 | ||
1788 | dout(10) << " peer paxos version " << m->paxos_last_version | |
1789 | << " vs my version " << paxos->get_version() | |
1790 | << " (ok)" | |
1791 | << dendl; | |
1792 | ||
1793 | if (monmap->contains(name) && | |
1794 | !monmap->get_addr(name).is_blank_ip()) { | |
1795 | // i'm part of the cluster; just initiate a new election | |
1796 | start_election(); | |
1797 | } else { | |
1798 | dout(10) << " ready to join, but i'm not in the monmap or my addr is blank, trying to join" << dendl; | |
1799 | messenger->send_message(new MMonJoin(monmap->fsid, name, messenger->get_myaddr()), | |
1800 | monmap->get_inst(*m->quorum.begin())); | |
1801 | } | |
1802 | } else { | |
1803 | if (monmap->contains(m->name)) { | |
1804 | dout(10) << " mon." << m->name << " is outside the quorum" << dendl; | |
1805 | outside_quorum.insert(m->name); | |
1806 | } else { | |
1807 | dout(10) << " mostly ignoring mon." << m->name << ", not part of monmap" << dendl; | |
1808 | return; | |
1809 | } | |
1810 | ||
1811 | unsigned need = monmap->size() / 2 + 1; | |
1812 | dout(10) << " outside_quorum now " << outside_quorum << ", need " << need << dendl; | |
1813 | if (outside_quorum.size() >= need) { | |
1814 | if (outside_quorum.count(name)) { | |
1815 | dout(10) << " that's enough to form a new quorum, calling election" << dendl; | |
1816 | start_election(); | |
1817 | } else { | |
1818 | dout(10) << " that's enough to form a new quorum, but it does not include me; waiting" << dendl; | |
1819 | } | |
1820 | } else { | |
1821 | dout(10) << " that's not yet enough for a new quorum, waiting" << dendl; | |
1822 | } | |
1823 | } | |
1824 | } | |
1825 | ||
1826 | void Monitor::join_election() | |
1827 | { | |
1828 | dout(10) << __func__ << dendl; | |
1829 | wait_for_paxos_write(); | |
1830 | _reset(); | |
1831 | state = STATE_ELECTING; | |
1832 | ||
1833 | logger->inc(l_mon_num_elections); | |
1834 | } | |
1835 | ||
1836 | void Monitor::start_election() | |
1837 | { | |
1838 | dout(10) << "start_election" << dendl; | |
1839 | wait_for_paxos_write(); | |
1840 | _reset(); | |
1841 | state = STATE_ELECTING; | |
1842 | ||
1843 | logger->inc(l_mon_num_elections); | |
1844 | logger->inc(l_mon_election_call); | |
1845 | ||
1846 | clog->info() << "mon." << name << " calling new monitor election"; | |
1847 | elector.call_election(); | |
1848 | } | |
1849 | ||
1850 | void Monitor::win_standalone_election() | |
1851 | { | |
1852 | dout(1) << "win_standalone_election" << dendl; | |
1853 | ||
1854 | // bump election epoch, in case the previous epoch included other | |
1855 | // monitors; we need to be able to make the distinction. | |
1856 | elector.init(); | |
1857 | elector.advance_epoch(); | |
1858 | ||
1859 | rank = monmap->get_rank(name); | |
1860 | assert(rank == 0); | |
1861 | set<int> q; | |
1862 | q.insert(rank); | |
1863 | ||
224ce89b WB |
1864 | map<int,Metadata> metadata; |
1865 | collect_metadata(&metadata[0]); | |
1866 | ||
7c673cae FG |
1867 | win_election(elector.get_epoch(), q, |
1868 | CEPH_FEATURES_ALL, | |
1869 | ceph::features::mon::get_supported(), | |
d2e6a577 | 1870 | metadata); |
7c673cae FG |
1871 | } |
1872 | ||
1873 | const utime_t& Monitor::get_leader_since() const | |
1874 | { | |
1875 | assert(state == STATE_LEADER); | |
1876 | return leader_since; | |
1877 | } | |
1878 | ||
1879 | epoch_t Monitor::get_epoch() | |
1880 | { | |
1881 | return elector.get_epoch(); | |
1882 | } | |
1883 | ||
1884 | void Monitor::_finish_svc_election() | |
1885 | { | |
1886 | assert(state == STATE_LEADER || state == STATE_PEON); | |
1887 | ||
1888 | for (auto p : paxos_service) { | |
1889 | // we already called election_finished() on monmon(); avoid callig twice | |
1890 | if (state == STATE_LEADER && p == monmon()) | |
1891 | continue; | |
1892 | p->election_finished(); | |
1893 | } | |
1894 | } | |
1895 | ||
1896 | void Monitor::win_election(epoch_t epoch, set<int>& active, uint64_t features, | |
1897 | const mon_feature_t& mon_features, | |
d2e6a577 | 1898 | const map<int,Metadata>& metadata) |
7c673cae FG |
1899 | { |
1900 | dout(10) << __func__ << " epoch " << epoch << " quorum " << active | |
1901 | << " features " << features | |
1902 | << " mon_features " << mon_features | |
1903 | << dendl; | |
1904 | assert(is_electing()); | |
1905 | state = STATE_LEADER; | |
1906 | leader_since = ceph_clock_now(); | |
1907 | leader = rank; | |
1908 | quorum = active; | |
1909 | quorum_con_features = features; | |
1910 | quorum_mon_features = mon_features; | |
224ce89b | 1911 | pending_metadata = metadata; |
7c673cae FG |
1912 | outside_quorum.clear(); |
1913 | ||
1914 | clog->info() << "mon." << name << "@" << rank | |
1915 | << " won leader election with quorum " << quorum; | |
1916 | ||
d2e6a577 | 1917 | set_leader_commands(get_local_commands(mon_features)); |
7c673cae FG |
1918 | |
1919 | paxos->leader_init(); | |
1920 | // NOTE: tell monmap monitor first. This is important for the | |
1921 | // bootstrap case to ensure that the very first paxos proposal | |
1922 | // codifies the monmap. Otherwise any manner of chaos can ensue | |
1923 | // when monitors are call elections or participating in a paxos | |
1924 | // round without agreeing on who the participants are. | |
1925 | monmon()->election_finished(); | |
1926 | _finish_svc_election(); | |
1927 | health_monitor->start(epoch); | |
1928 | ||
1929 | logger->inc(l_mon_election_win); | |
1930 | ||
224ce89b WB |
1931 | // inject new metadata in first transaction. |
1932 | { | |
1933 | // include previous metadata for missing mons (that aren't part of | |
1934 | // the current quorum). | |
1935 | map<int,Metadata> m = metadata; | |
1936 | for (unsigned rank = 0; rank < monmap->size(); ++rank) { | |
1937 | if (m.count(rank) == 0 && | |
1938 | mon_metadata.count(rank)) { | |
1939 | m[rank] = mon_metadata[rank]; | |
1940 | } | |
1941 | } | |
1942 | ||
1943 | // FIXME: This is a bit sloppy because we aren't guaranteed to submit | |
1944 | // a new transaction immediately after the election finishes. We should | |
1945 | // do that anyway for other reasons, though. | |
1946 | MonitorDBStore::TransactionRef t = paxos->get_pending_transaction(); | |
1947 | bufferlist bl; | |
1948 | ::encode(m, bl); | |
1949 | t->put(MONITOR_STORE_PREFIX, "last_metadata", bl); | |
1950 | } | |
1951 | ||
7c673cae FG |
1952 | finish_election(); |
1953 | if (monmap->size() > 1 && | |
1954 | monmap->get_epoch() > 0) { | |
1955 | timecheck_start(); | |
1956 | health_tick_start(); | |
1957 | do_health_to_clog_interval(); | |
1958 | scrub_event_start(); | |
1959 | } | |
7c673cae FG |
1960 | } |
1961 | ||
1962 | void Monitor::lose_election(epoch_t epoch, set<int> &q, int l, | |
1963 | uint64_t features, | |
1964 | const mon_feature_t& mon_features) | |
1965 | { | |
1966 | state = STATE_PEON; | |
1967 | leader_since = utime_t(); | |
1968 | leader = l; | |
1969 | quorum = q; | |
1970 | outside_quorum.clear(); | |
1971 | quorum_con_features = features; | |
1972 | quorum_mon_features = mon_features; | |
1973 | dout(10) << "lose_election, epoch " << epoch << " leader is mon" << leader | |
1974 | << " quorum is " << quorum << " features are " << quorum_con_features | |
1975 | << " mon_features are " << quorum_mon_features | |
1976 | << dendl; | |
1977 | ||
1978 | paxos->peon_init(); | |
1979 | _finish_svc_election(); | |
1980 | health_monitor->start(epoch); | |
1981 | ||
1982 | logger->inc(l_mon_election_lose); | |
1983 | ||
1984 | finish_election(); | |
1985 | ||
224ce89b WB |
1986 | if ((quorum_con_features & CEPH_FEATURE_MON_METADATA) && |
1987 | !HAVE_FEATURE(quorum_con_features, SERVER_LUMINOUS)) { | |
1988 | // for pre-luminous mons only | |
7c673cae | 1989 | Metadata sys_info; |
224ce89b | 1990 | collect_metadata(&sys_info); |
7c673cae FG |
1991 | messenger->send_message(new MMonMetadata(sys_info), |
1992 | monmap->get_inst(get_leader())); | |
1993 | } | |
1994 | } | |
1995 | ||
224ce89b WB |
1996 | void Monitor::collect_metadata(Metadata *m) |
1997 | { | |
1998 | collect_sys_info(m, g_ceph_context); | |
1999 | (*m)["addr"] = stringify(messenger->get_myaddr()); | |
2000 | } | |
2001 | ||
7c673cae FG |
2002 | void Monitor::finish_election() |
2003 | { | |
2004 | apply_quorum_to_compatset_features(); | |
2005 | apply_monmap_to_compatset_features(); | |
2006 | timecheck_finish(); | |
2007 | exited_quorum = utime_t(); | |
2008 | finish_contexts(g_ceph_context, waitfor_quorum); | |
2009 | finish_contexts(g_ceph_context, maybe_wait_for_quorum); | |
2010 | resend_routed_requests(); | |
2011 | update_logger(); | |
2012 | register_cluster_logger(); | |
2013 | ||
2014 | // am i named properly? | |
2015 | string cur_name = monmap->get_name(messenger->get_myaddr()); | |
2016 | if (cur_name != name) { | |
2017 | dout(10) << " renaming myself from " << cur_name << " -> " << name << dendl; | |
2018 | messenger->send_message(new MMonJoin(monmap->fsid, name, messenger->get_myaddr()), | |
2019 | monmap->get_inst(*quorum.begin())); | |
2020 | } | |
2021 | } | |
2022 | ||
2023 | void Monitor::_apply_compatset_features(CompatSet &new_features) | |
2024 | { | |
2025 | if (new_features.compare(features) != 0) { | |
2026 | CompatSet diff = features.unsupported(new_features); | |
2027 | dout(1) << __func__ << " enabling new quorum features: " << diff << dendl; | |
2028 | features = new_features; | |
2029 | ||
2030 | auto t = std::make_shared<MonitorDBStore::Transaction>(); | |
2031 | write_features(t); | |
2032 | store->apply_transaction(t); | |
2033 | ||
2034 | calc_quorum_requirements(); | |
2035 | } | |
2036 | } | |
2037 | ||
2038 | void Monitor::apply_quorum_to_compatset_features() | |
2039 | { | |
2040 | CompatSet new_features(features); | |
2041 | if (quorum_con_features & CEPH_FEATURE_OSD_ERASURE_CODES) { | |
2042 | new_features.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_OSD_ERASURE_CODES); | |
2043 | } | |
2044 | if (quorum_con_features & CEPH_FEATURE_OSDMAP_ENC) { | |
2045 | new_features.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_OSDMAP_ENC); | |
2046 | } | |
2047 | if (quorum_con_features & CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2) { | |
2048 | new_features.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_ERASURE_CODE_PLUGINS_V2); | |
2049 | } | |
2050 | if (quorum_con_features & CEPH_FEATURE_ERASURE_CODE_PLUGINS_V3) { | |
2051 | new_features.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_ERASURE_CODE_PLUGINS_V3); | |
2052 | } | |
2053 | dout(5) << __func__ << dendl; | |
2054 | _apply_compatset_features(new_features); | |
2055 | } | |
2056 | ||
2057 | void Monitor::apply_monmap_to_compatset_features() | |
2058 | { | |
2059 | CompatSet new_features(features); | |
2060 | mon_feature_t monmap_features = monmap->get_required_features(); | |
2061 | ||
2062 | /* persistent monmap features may go into the compatset. | |
2063 | * optional monmap features may not - why? | |
2064 | * because optional monmap features may be set/unset by the admin, | |
2065 | * and possibly by other means that haven't yet been thought out, | |
2066 | * so we can't make the monitor enforce them on start - because they | |
2067 | * may go away. | |
2068 | * this, of course, does not invalidate setting a compatset feature | |
2069 | * for an optional feature - as long as you make sure to clean it up | |
2070 | * once you unset it. | |
2071 | */ | |
2072 | if (monmap_features.contains_all(ceph::features::mon::FEATURE_KRAKEN)) { | |
2073 | assert(ceph::features::mon::get_persistent().contains_all( | |
2074 | ceph::features::mon::FEATURE_KRAKEN)); | |
2075 | // this feature should only ever be set if the quorum supports it. | |
2076 | assert(HAVE_FEATURE(quorum_con_features, SERVER_KRAKEN)); | |
2077 | new_features.incompat.insert(CEPH_MON_FEATURE_INCOMPAT_KRAKEN); | |
2078 | } | |
2079 | ||
2080 | dout(5) << __func__ << dendl; | |
2081 | _apply_compatset_features(new_features); | |
2082 | } | |
2083 | ||
2084 | void Monitor::calc_quorum_requirements() | |
2085 | { | |
2086 | required_features = 0; | |
2087 | ||
2088 | // compatset | |
2089 | if (features.incompat.contains(CEPH_MON_FEATURE_INCOMPAT_OSD_ERASURE_CODES)) { | |
2090 | required_features |= CEPH_FEATURE_OSD_ERASURE_CODES; | |
2091 | } | |
2092 | if (features.incompat.contains(CEPH_MON_FEATURE_INCOMPAT_OSDMAP_ENC)) { | |
2093 | required_features |= CEPH_FEATURE_OSDMAP_ENC; | |
2094 | } | |
2095 | if (features.incompat.contains(CEPH_MON_FEATURE_INCOMPAT_ERASURE_CODE_PLUGINS_V2)) { | |
2096 | required_features |= CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2; | |
2097 | } | |
2098 | if (features.incompat.contains(CEPH_MON_FEATURE_INCOMPAT_ERASURE_CODE_PLUGINS_V3)) { | |
2099 | required_features |= CEPH_FEATURE_ERASURE_CODE_PLUGINS_V3; | |
2100 | } | |
2101 | if (features.incompat.contains(CEPH_MON_FEATURE_INCOMPAT_KRAKEN)) { | |
2102 | required_features |= CEPH_FEATUREMASK_SERVER_KRAKEN; | |
2103 | } | |
2104 | ||
2105 | // monmap | |
2106 | if (monmap->get_required_features().contains_all( | |
2107 | ceph::features::mon::FEATURE_KRAKEN)) { | |
2108 | required_features |= CEPH_FEATUREMASK_SERVER_KRAKEN; | |
2109 | } | |
2110 | if (monmap->get_required_features().contains_all( | |
2111 | ceph::features::mon::FEATURE_LUMINOUS)) { | |
2112 | required_features |= CEPH_FEATUREMASK_SERVER_LUMINOUS; | |
2113 | } | |
2114 | dout(10) << __func__ << " required_features " << required_features << dendl; | |
2115 | } | |
2116 | ||
31f18b77 FG |
2117 | void Monitor::get_combined_feature_map(FeatureMap *fm) |
2118 | { | |
2119 | *fm += session_map.feature_map; | |
2120 | for (auto id : quorum) { | |
2121 | if (id != rank) { | |
2122 | *fm += quorum_feature_map[id]; | |
2123 | } | |
2124 | } | |
2125 | } | |
2126 | ||
7c673cae FG |
2127 | void Monitor::sync_force(Formatter *f, ostream& ss) |
2128 | { | |
2129 | bool free_formatter = false; | |
2130 | ||
2131 | if (!f) { | |
2132 | // louzy/lazy hack: default to json if no formatter has been defined | |
2133 | f = new JSONFormatter(); | |
2134 | free_formatter = true; | |
2135 | } | |
2136 | ||
2137 | auto tx(std::make_shared<MonitorDBStore::Transaction>()); | |
2138 | sync_stash_critical_state(tx); | |
2139 | tx->put("mon_sync", "force_sync", 1); | |
2140 | store->apply_transaction(tx); | |
2141 | ||
2142 | f->open_object_section("sync_force"); | |
2143 | f->dump_int("ret", 0); | |
2144 | f->dump_stream("msg") << "forcing store sync the next time the monitor starts"; | |
2145 | f->close_section(); // sync_force | |
2146 | f->flush(ss); | |
2147 | if (free_formatter) | |
2148 | delete f; | |
2149 | } | |
2150 | ||
2151 | void Monitor::_quorum_status(Formatter *f, ostream& ss) | |
2152 | { | |
2153 | bool free_formatter = false; | |
2154 | ||
2155 | if (!f) { | |
2156 | // louzy/lazy hack: default to json if no formatter has been defined | |
2157 | f = new JSONFormatter(); | |
2158 | free_formatter = true; | |
2159 | } | |
2160 | f->open_object_section("quorum_status"); | |
2161 | f->dump_int("election_epoch", get_epoch()); | |
2162 | ||
2163 | f->open_array_section("quorum"); | |
2164 | for (set<int>::iterator p = quorum.begin(); p != quorum.end(); ++p) | |
2165 | f->dump_int("mon", *p); | |
2166 | f->close_section(); // quorum | |
2167 | ||
2168 | list<string> quorum_names = get_quorum_names(); | |
2169 | f->open_array_section("quorum_names"); | |
2170 | for (list<string>::iterator p = quorum_names.begin(); p != quorum_names.end(); ++p) | |
2171 | f->dump_string("mon", *p); | |
2172 | f->close_section(); // quorum_names | |
2173 | ||
2174 | f->dump_string("quorum_leader_name", quorum.empty() ? string() : monmap->get_name(*quorum.begin())); | |
2175 | ||
2176 | f->open_object_section("monmap"); | |
2177 | monmap->dump(f); | |
2178 | f->close_section(); // monmap | |
2179 | ||
2180 | f->close_section(); // quorum_status | |
2181 | f->flush(ss); | |
2182 | if (free_formatter) | |
2183 | delete f; | |
2184 | } | |
2185 | ||
2186 | void Monitor::get_mon_status(Formatter *f, ostream& ss) | |
2187 | { | |
2188 | bool free_formatter = false; | |
2189 | ||
2190 | if (!f) { | |
2191 | // louzy/lazy hack: default to json if no formatter has been defined | |
2192 | f = new JSONFormatter(); | |
2193 | free_formatter = true; | |
2194 | } | |
2195 | ||
2196 | f->open_object_section("mon_status"); | |
2197 | f->dump_string("name", name); | |
2198 | f->dump_int("rank", rank); | |
2199 | f->dump_string("state", get_state_name()); | |
2200 | f->dump_int("election_epoch", get_epoch()); | |
2201 | ||
2202 | f->open_array_section("quorum"); | |
2203 | for (set<int>::iterator p = quorum.begin(); p != quorum.end(); ++p) { | |
2204 | f->dump_int("mon", *p); | |
2205 | } | |
2206 | ||
2207 | f->close_section(); // quorum | |
2208 | ||
2209 | f->open_object_section("features"); | |
2210 | f->dump_stream("required_con") << required_features; | |
2211 | mon_feature_t req_mon_features = get_required_mon_features(); | |
2212 | req_mon_features.dump(f, "required_mon"); | |
2213 | f->dump_stream("quorum_con") << quorum_con_features; | |
2214 | quorum_mon_features.dump(f, "quorum_mon"); | |
2215 | f->close_section(); // features | |
2216 | ||
2217 | f->open_array_section("outside_quorum"); | |
2218 | for (set<string>::iterator p = outside_quorum.begin(); p != outside_quorum.end(); ++p) | |
2219 | f->dump_string("mon", *p); | |
2220 | f->close_section(); // outside_quorum | |
2221 | ||
2222 | f->open_array_section("extra_probe_peers"); | |
2223 | for (set<entity_addr_t>::iterator p = extra_probe_peers.begin(); | |
2224 | p != extra_probe_peers.end(); | |
2225 | ++p) | |
2226 | f->dump_stream("peer") << *p; | |
2227 | f->close_section(); // extra_probe_peers | |
2228 | ||
2229 | f->open_array_section("sync_provider"); | |
2230 | for (map<uint64_t,SyncProvider>::const_iterator p = sync_providers.begin(); | |
2231 | p != sync_providers.end(); | |
2232 | ++p) { | |
2233 | f->dump_unsigned("cookie", p->second.cookie); | |
2234 | f->dump_stream("entity") << p->second.entity; | |
2235 | f->dump_stream("timeout") << p->second.timeout; | |
2236 | f->dump_unsigned("last_committed", p->second.last_committed); | |
2237 | f->dump_stream("last_key") << p->second.last_key; | |
2238 | } | |
2239 | f->close_section(); | |
2240 | ||
2241 | if (is_synchronizing()) { | |
2242 | f->open_object_section("sync"); | |
2243 | f->dump_stream("sync_provider") << sync_provider; | |
2244 | f->dump_unsigned("sync_cookie", sync_cookie); | |
2245 | f->dump_unsigned("sync_start_version", sync_start_version); | |
2246 | f->close_section(); | |
2247 | } | |
2248 | ||
2249 | if (g_conf->mon_sync_provider_kill_at > 0) | |
2250 | f->dump_int("provider_kill_at", g_conf->mon_sync_provider_kill_at); | |
2251 | if (g_conf->mon_sync_requester_kill_at > 0) | |
2252 | f->dump_int("requester_kill_at", g_conf->mon_sync_requester_kill_at); | |
2253 | ||
2254 | f->open_object_section("monmap"); | |
2255 | monmap->dump(f); | |
2256 | f->close_section(); | |
2257 | ||
31f18b77 | 2258 | f->dump_object("feature_map", session_map.feature_map); |
7c673cae FG |
2259 | f->close_section(); // mon_status |
2260 | ||
2261 | if (free_formatter) { | |
2262 | // flush formatter to ss and delete it iff we created the formatter | |
2263 | f->flush(ss); | |
2264 | delete f; | |
2265 | } | |
2266 | } | |
2267 | ||
2268 | ||
2269 | // health status to clog | |
2270 | ||
2271 | void Monitor::health_tick_start() | |
2272 | { | |
2273 | if (!cct->_conf->mon_health_to_clog || | |
2274 | cct->_conf->mon_health_to_clog_tick_interval <= 0) | |
2275 | return; | |
2276 | ||
2277 | dout(15) << __func__ << dendl; | |
2278 | ||
2279 | health_tick_stop(); | |
2280 | health_tick_event = new C_MonContext(this, [this](int r) { | |
2281 | if (r < 0) | |
2282 | return; | |
2283 | do_health_to_clog(); | |
2284 | health_tick_start(); | |
2285 | }); | |
2286 | timer.add_event_after(cct->_conf->mon_health_to_clog_tick_interval, | |
2287 | health_tick_event); | |
2288 | } | |
2289 | ||
2290 | void Monitor::health_tick_stop() | |
2291 | { | |
2292 | dout(15) << __func__ << dendl; | |
2293 | ||
2294 | if (health_tick_event) { | |
2295 | timer.cancel_event(health_tick_event); | |
2296 | health_tick_event = NULL; | |
2297 | } | |
2298 | } | |
2299 | ||
2300 | utime_t Monitor::health_interval_calc_next_update() | |
2301 | { | |
2302 | utime_t now = ceph_clock_now(); | |
2303 | ||
2304 | time_t secs = now.sec(); | |
2305 | int remainder = secs % cct->_conf->mon_health_to_clog_interval; | |
2306 | int adjustment = cct->_conf->mon_health_to_clog_interval - remainder; | |
2307 | utime_t next = utime_t(secs + adjustment, 0); | |
2308 | ||
2309 | dout(20) << __func__ | |
2310 | << " now: " << now << "," | |
2311 | << " next: " << next << "," | |
2312 | << " interval: " << cct->_conf->mon_health_to_clog_interval | |
2313 | << dendl; | |
2314 | ||
2315 | return next; | |
2316 | } | |
2317 | ||
2318 | void Monitor::health_interval_start() | |
2319 | { | |
2320 | dout(15) << __func__ << dendl; | |
2321 | ||
2322 | if (!cct->_conf->mon_health_to_clog || | |
2323 | cct->_conf->mon_health_to_clog_interval <= 0) { | |
2324 | return; | |
2325 | } | |
2326 | ||
2327 | health_interval_stop(); | |
2328 | utime_t next = health_interval_calc_next_update(); | |
2329 | health_interval_event = new C_MonContext(this, [this](int r) { | |
2330 | if (r < 0) | |
2331 | return; | |
2332 | do_health_to_clog_interval(); | |
2333 | }); | |
2334 | timer.add_event_at(next, health_interval_event); | |
2335 | } | |
2336 | ||
2337 | void Monitor::health_interval_stop() | |
2338 | { | |
2339 | dout(15) << __func__ << dendl; | |
2340 | if (health_interval_event) { | |
2341 | timer.cancel_event(health_interval_event); | |
2342 | } | |
2343 | health_interval_event = NULL; | |
2344 | } | |
2345 | ||
2346 | void Monitor::health_events_cleanup() | |
2347 | { | |
2348 | health_tick_stop(); | |
2349 | health_interval_stop(); | |
2350 | health_status_cache.reset(); | |
2351 | } | |
2352 | ||
2353 | void Monitor::health_to_clog_update_conf(const std::set<std::string> &changed) | |
2354 | { | |
2355 | dout(20) << __func__ << dendl; | |
2356 | ||
2357 | if (changed.count("mon_health_to_clog")) { | |
2358 | if (!cct->_conf->mon_health_to_clog) { | |
2359 | health_events_cleanup(); | |
2360 | } else { | |
2361 | if (!health_tick_event) { | |
2362 | health_tick_start(); | |
2363 | } | |
2364 | if (!health_interval_event) { | |
2365 | health_interval_start(); | |
2366 | } | |
2367 | } | |
2368 | } | |
2369 | ||
2370 | if (changed.count("mon_health_to_clog_interval")) { | |
2371 | if (cct->_conf->mon_health_to_clog_interval <= 0) { | |
2372 | health_interval_stop(); | |
2373 | } else { | |
2374 | health_interval_start(); | |
2375 | } | |
2376 | } | |
2377 | ||
2378 | if (changed.count("mon_health_to_clog_tick_interval")) { | |
2379 | if (cct->_conf->mon_health_to_clog_tick_interval <= 0) { | |
2380 | health_tick_stop(); | |
2381 | } else { | |
2382 | health_tick_start(); | |
2383 | } | |
2384 | } | |
2385 | } | |
2386 | ||
2387 | void Monitor::do_health_to_clog_interval() | |
2388 | { | |
2389 | // outputting to clog may have been disabled in the conf | |
2390 | // since we were scheduled. | |
2391 | if (!cct->_conf->mon_health_to_clog || | |
2392 | cct->_conf->mon_health_to_clog_interval <= 0) | |
2393 | return; | |
2394 | ||
2395 | dout(10) << __func__ << dendl; | |
2396 | ||
2397 | // do we have a cached value for next_clog_update? if not, | |
2398 | // do we know when the last update was? | |
2399 | ||
2400 | do_health_to_clog(true); | |
2401 | health_interval_start(); | |
2402 | } | |
2403 | ||
2404 | void Monitor::do_health_to_clog(bool force) | |
2405 | { | |
2406 | // outputting to clog may have been disabled in the conf | |
2407 | // since we were scheduled. | |
2408 | if (!cct->_conf->mon_health_to_clog || | |
2409 | cct->_conf->mon_health_to_clog_interval <= 0) | |
2410 | return; | |
2411 | ||
2412 | dout(10) << __func__ << (force ? " (force)" : "") << dendl; | |
2413 | ||
224ce89b WB |
2414 | if (osdmon()->osdmap.require_osd_release >= CEPH_RELEASE_LUMINOUS) { |
2415 | string summary; | |
2416 | health_status_t level = get_health_status(false, nullptr, &summary); | |
2417 | if (!force && | |
2418 | summary == health_status_cache.summary && | |
2419 | level == health_status_cache.overall) | |
2420 | return; | |
2421 | if (level == HEALTH_OK) | |
2422 | clog->info() << "overall " << summary; | |
2423 | else if (level == HEALTH_WARN) | |
2424 | clog->warn() << "overall " << summary; | |
2425 | else if (level == HEALTH_ERR) | |
2426 | clog->error() << "overall " << summary; | |
2427 | else | |
2428 | ceph_abort(); | |
2429 | health_status_cache.summary = summary; | |
2430 | health_status_cache.overall = level; | |
2431 | } else { | |
2432 | // for jewel only | |
2433 | list<string> status; | |
2434 | health_status_t overall = get_health(status, NULL, NULL); | |
2435 | dout(25) << __func__ | |
2436 | << (force ? " (force)" : "") | |
2437 | << dendl; | |
2438 | ||
2439 | string summary = joinify(status.begin(), status.end(), string("; ")); | |
7c673cae | 2440 | |
224ce89b WB |
2441 | if (!force && |
2442 | overall == health_status_cache.overall && | |
2443 | !health_status_cache.summary.empty() && | |
2444 | health_status_cache.summary == summary) { | |
2445 | // we got a dup! | |
2446 | return; | |
2447 | } | |
2448 | ||
2449 | clog->info() << summary; | |
2450 | ||
2451 | health_status_cache.overall = overall; | |
2452 | health_status_cache.summary = summary; | |
2453 | } | |
2454 | } | |
2455 | ||
2456 | health_status_t Monitor::get_health_status( | |
2457 | bool want_detail, | |
2458 | Formatter *f, | |
2459 | std::string *plain, | |
2460 | const char *sep1, | |
2461 | const char *sep2) | |
2462 | { | |
2463 | health_status_t r = HEALTH_OK; | |
2464 | bool compat = g_conf->mon_health_preluminous_compat; | |
d2e6a577 | 2465 | bool compat_warn = g_conf->get_val<bool>("mon_health_preluminous_compat_warning"); |
224ce89b WB |
2466 | if (f) { |
2467 | f->open_object_section("health"); | |
2468 | f->open_object_section("checks"); | |
2469 | } | |
7c673cae | 2470 | |
224ce89b WB |
2471 | string summary; |
2472 | string *psummary = f ? nullptr : &summary; | |
2473 | for (auto& svc : paxos_service) { | |
2474 | r = std::min(r, svc->get_health_checks().dump_summary( | |
2475 | f, psummary, sep2, want_detail)); | |
2476 | } | |
7c673cae | 2477 | |
224ce89b WB |
2478 | if (f) { |
2479 | f->close_section(); | |
2480 | f->dump_stream("status") << r; | |
2481 | } else { | |
2482 | // one-liner: HEALTH_FOO[ thing1[; thing2 ...]] | |
2483 | *plain = stringify(r); | |
2484 | if (summary.size()) { | |
2485 | *plain += sep1; | |
2486 | *plain += summary; | |
2487 | } | |
2488 | *plain += "\n"; | |
2489 | } | |
2490 | ||
d2e6a577 FG |
2491 | if (f && (compat || compat_warn)) { |
2492 | health_status_t cr = compat_warn ? min(HEALTH_WARN, r) : r; | |
2493 | if (compat) { | |
2494 | f->open_array_section("summary"); | |
2495 | if (compat_warn) { | |
2496 | f->open_object_section("item"); | |
2497 | f->dump_stream("severity") << HEALTH_WARN; | |
2498 | f->dump_string("summary", "'ceph health' JSON format has changed in luminous; update your health monitoring scripts"); | |
2499 | f->close_section(); | |
2500 | } | |
2501 | for (auto& svc : paxos_service) { | |
2502 | svc->get_health_checks().dump_summary_compat(f); | |
2503 | } | |
2504 | f->close_section(); | |
224ce89b | 2505 | } |
d2e6a577 | 2506 | f->dump_stream("overall_status") << cr; |
224ce89b WB |
2507 | } |
2508 | ||
2509 | if (want_detail) { | |
d2e6a577 | 2510 | if (f && (compat || compat_warn)) { |
224ce89b | 2511 | f->open_array_section("detail"); |
d2e6a577 FG |
2512 | if (compat_warn) { |
2513 | f->dump_string("item", "'ceph health' JSON format has changed in luminous. If you see this your monitoring system is scraping the wrong fields. Disable this with 'mon health preluminous compat warning = false'"); | |
2514 | } | |
224ce89b WB |
2515 | } |
2516 | ||
2517 | for (auto& svc : paxos_service) { | |
2518 | svc->get_health_checks().dump_detail(f, plain, compat); | |
2519 | } | |
2520 | ||
d2e6a577 | 2521 | if (f && (compat || compat_warn)) { |
224ce89b WB |
2522 | f->close_section(); |
2523 | } | |
2524 | } | |
2525 | if (f) { | |
2526 | f->close_section(); | |
2527 | } | |
2528 | return r; | |
2529 | } | |
2530 | ||
2531 | void Monitor::log_health( | |
2532 | const health_check_map_t& updated, | |
2533 | const health_check_map_t& previous, | |
2534 | MonitorDBStore::TransactionRef t) | |
2535 | { | |
2536 | if (!g_conf->mon_health_to_clog) { | |
7c673cae FG |
2537 | return; |
2538 | } | |
224ce89b WB |
2539 | // FIXME: log atomically as part of @t instead of using clog. |
2540 | dout(10) << __func__ << " updated " << updated.checks.size() | |
2541 | << " previous " << previous.checks.size() | |
2542 | << dendl; | |
2543 | for (auto& p : updated.checks) { | |
2544 | auto q = previous.checks.find(p.first); | |
2545 | if (q == previous.checks.end()) { | |
2546 | // new | |
2547 | ostringstream ss; | |
2548 | ss << "Health check failed: " << p.second.summary << " (" | |
2549 | << p.first << ")"; | |
2550 | if (p.second.severity == HEALTH_WARN) | |
2551 | clog->warn() << ss.str(); | |
2552 | else | |
2553 | clog->error() << ss.str(); | |
2554 | } else { | |
2555 | if (p.second.summary != q->second.summary || | |
2556 | p.second.severity != q->second.severity) { | |
2557 | // summary or severity changed (ignore detail changes at this level) | |
2558 | ostringstream ss; | |
2559 | ss << "Health check update: " << p.second.summary << " (" << p.first << ")"; | |
2560 | if (p.second.severity == HEALTH_WARN) | |
2561 | clog->warn() << ss.str(); | |
2562 | else | |
2563 | clog->error() << ss.str(); | |
2564 | } | |
2565 | } | |
2566 | } | |
2567 | for (auto& p : previous.checks) { | |
2568 | if (!updated.checks.count(p.first)) { | |
2569 | // cleared | |
2570 | ostringstream ss; | |
2571 | if (p.first == "DEGRADED_OBJECTS") { | |
2572 | clog->info() << "All degraded objects recovered"; | |
2573 | } else if (p.first == "OSD_FLAGS") { | |
2574 | clog->info() << "OSD flags cleared"; | |
2575 | } else { | |
2576 | clog->info() << "Health check cleared: " << p.first << " (was: " | |
2577 | << p.second.summary << ")"; | |
2578 | } | |
2579 | } | |
2580 | } | |
7c673cae | 2581 | |
224ce89b WB |
2582 | if (previous.checks.size() && updated.checks.size() == 0) { |
2583 | // We might be going into a fully healthy state, check | |
2584 | // other subsystems | |
2585 | bool any_checks = false; | |
2586 | for (auto& svc : paxos_service) { | |
2587 | if (&(svc->get_health_checks()) == &(previous)) { | |
2588 | // Ignore the ones we're clearing right now | |
2589 | continue; | |
2590 | } | |
7c673cae | 2591 | |
224ce89b WB |
2592 | if (svc->get_health_checks().checks.size() > 0) { |
2593 | any_checks = true; | |
2594 | break; | |
2595 | } | |
2596 | } | |
2597 | if (!any_checks) { | |
2598 | clog->info() << "Cluster is now healthy"; | |
2599 | } | |
2600 | } | |
7c673cae FG |
2601 | } |
2602 | ||
2603 | health_status_t Monitor::get_health(list<string>& status, | |
2604 | bufferlist *detailbl, | |
2605 | Formatter *f) | |
2606 | { | |
2607 | list<pair<health_status_t,string> > summary; | |
2608 | list<pair<health_status_t,string> > detail; | |
2609 | ||
2610 | if (f) | |
2611 | f->open_object_section("health"); | |
2612 | ||
2613 | for (vector<PaxosService*>::iterator p = paxos_service.begin(); | |
2614 | p != paxos_service.end(); | |
2615 | ++p) { | |
2616 | PaxosService *s = *p; | |
2617 | s->get_health(summary, detailbl ? &detail : NULL, cct); | |
2618 | } | |
2619 | ||
224ce89b | 2620 | health_monitor->get_health(summary, (detailbl ? &detail : NULL)); |
7c673cae FG |
2621 | |
2622 | health_status_t overall = HEALTH_OK; | |
2623 | if (!timecheck_skews.empty()) { | |
2624 | list<string> warns; | |
7c673cae FG |
2625 | for (map<entity_inst_t,double>::iterator i = timecheck_skews.begin(); |
2626 | i != timecheck_skews.end(); ++i) { | |
2627 | entity_inst_t inst = i->first; | |
2628 | double skew = i->second; | |
2629 | double latency = timecheck_latencies[inst]; | |
2630 | string name = monmap->get_name(inst.addr); | |
7c673cae FG |
2631 | ostringstream tcss; |
2632 | health_status_t tcstatus = timecheck_status(tcss, skew, latency); | |
2633 | if (tcstatus != HEALTH_OK) { | |
2634 | if (overall > tcstatus) | |
2635 | overall = tcstatus; | |
2636 | warns.push_back(name); | |
7c673cae FG |
2637 | ostringstream tmp_ss; |
2638 | tmp_ss << "mon." << name | |
2639 | << " addr " << inst.addr << " " << tcss.str() | |
2640 | << " (latency " << latency << "s)"; | |
2641 | detail.push_back(make_pair(tcstatus, tmp_ss.str())); | |
2642 | } | |
7c673cae FG |
2643 | } |
2644 | if (!warns.empty()) { | |
2645 | ostringstream ss; | |
2646 | ss << "clock skew detected on"; | |
2647 | while (!warns.empty()) { | |
2648 | ss << " mon." << warns.front(); | |
2649 | warns.pop_front(); | |
2650 | if (!warns.empty()) | |
2651 | ss << ","; | |
2652 | } | |
2653 | status.push_back(ss.str()); | |
2654 | summary.push_back(make_pair(HEALTH_WARN, "Monitor clock skew detected ")); | |
2655 | } | |
7c673cae | 2656 | } |
7c673cae FG |
2657 | |
2658 | if (f) | |
2659 | f->open_array_section("summary"); | |
2660 | if (!summary.empty()) { | |
2661 | while (!summary.empty()) { | |
2662 | if (overall > summary.front().first) | |
2663 | overall = summary.front().first; | |
2664 | status.push_back(summary.front().second); | |
2665 | if (f) { | |
2666 | f->open_object_section("item"); | |
2667 | f->dump_stream("severity") << summary.front().first; | |
2668 | f->dump_string("summary", summary.front().second); | |
2669 | f->close_section(); | |
2670 | } | |
2671 | summary.pop_front(); | |
2672 | } | |
2673 | } | |
2674 | if (f) | |
2675 | f->close_section(); | |
2676 | ||
2677 | stringstream fss; | |
2678 | fss << overall; | |
2679 | status.push_front(fss.str()); | |
2680 | if (f) | |
2681 | f->dump_stream("overall_status") << overall; | |
2682 | ||
2683 | if (f) | |
2684 | f->open_array_section("detail"); | |
2685 | while (!detail.empty()) { | |
2686 | if (f) | |
2687 | f->dump_string("item", detail.front().second); | |
2688 | else if (detailbl != NULL) { | |
2689 | detailbl->append(detail.front().second); | |
2690 | detailbl->append('\n'); | |
2691 | } | |
2692 | detail.pop_front(); | |
2693 | } | |
2694 | if (f) | |
2695 | f->close_section(); | |
2696 | ||
2697 | if (f) | |
2698 | f->close_section(); | |
2699 | ||
2700 | return overall; | |
2701 | } | |
2702 | ||
2703 | void Monitor::get_cluster_status(stringstream &ss, Formatter *f) | |
2704 | { | |
2705 | if (f) | |
2706 | f->open_object_section("status"); | |
2707 | ||
7c673cae FG |
2708 | if (f) { |
2709 | f->dump_stream("fsid") << monmap->get_fsid(); | |
224ce89b | 2710 | get_health_status(false, f, nullptr); |
7c673cae FG |
2711 | f->dump_unsigned("election_epoch", get_epoch()); |
2712 | { | |
2713 | f->open_array_section("quorum"); | |
2714 | for (set<int>::iterator p = quorum.begin(); p != quorum.end(); ++p) | |
2715 | f->dump_int("rank", *p); | |
2716 | f->close_section(); | |
2717 | f->open_array_section("quorum_names"); | |
2718 | for (set<int>::iterator p = quorum.begin(); p != quorum.end(); ++p) | |
2719 | f->dump_string("id", monmap->get_name(*p)); | |
2720 | f->close_section(); | |
2721 | } | |
2722 | f->open_object_section("monmap"); | |
2723 | monmap->dump(f); | |
2724 | f->close_section(); | |
2725 | f->open_object_section("osdmap"); | |
224ce89b | 2726 | osdmon()->osdmap.print_summary(f, cout, string(12, ' ')); |
7c673cae FG |
2727 | f->close_section(); |
2728 | f->open_object_section("pgmap"); | |
31f18b77 | 2729 | pgservice->print_summary(f, NULL); |
7c673cae FG |
2730 | f->close_section(); |
2731 | f->open_object_section("fsmap"); | |
2732 | mdsmon()->get_fsmap().print_summary(f, NULL); | |
2733 | f->close_section(); | |
7c673cae FG |
2734 | f->open_object_section("mgrmap"); |
2735 | mgrmon()->get_map().print_summary(f, nullptr); | |
2736 | f->close_section(); | |
224ce89b WB |
2737 | |
2738 | f->dump_object("servicemap", mgrstatmon()->get_service_map()); | |
7c673cae FG |
2739 | f->close_section(); |
2740 | } else { | |
31f18b77 FG |
2741 | ss << " cluster:\n"; |
2742 | ss << " id: " << monmap->get_fsid() << "\n"; | |
224ce89b WB |
2743 | |
2744 | string health; | |
2745 | if (osdmon()->osdmap.require_osd_release >= CEPH_RELEASE_LUMINOUS) { | |
2746 | get_health_status(false, nullptr, &health, | |
2747 | "\n ", "\n "); | |
2748 | } else { | |
2749 | list<string> ls; | |
2750 | get_health(ls, NULL, f); | |
2751 | health = joinify(ls.begin(), ls.end(), | |
2752 | string("\n ")); | |
2753 | } | |
2754 | ss << " health: " << health << "\n"; | |
2755 | ||
31f18b77 | 2756 | ss << "\n \n services:\n"; |
224ce89b WB |
2757 | { |
2758 | size_t maxlen = 3; | |
2759 | auto& service_map = mgrstatmon()->get_service_map(); | |
2760 | for (auto& p : service_map.services) { | |
2761 | maxlen = std::max(maxlen, p.first.size()); | |
2762 | } | |
2763 | string spacing(maxlen - 3, ' '); | |
2764 | const auto quorum_names = get_quorum_names(); | |
2765 | const auto mon_count = monmap->mon_info.size(); | |
2766 | ss << " mon: " << spacing << mon_count << " daemons, quorum " | |
2767 | << quorum_names; | |
2768 | if (quorum_names.size() != mon_count) { | |
2769 | std::list<std::string> out_of_q; | |
2770 | for (size_t i = 0; i < monmap->ranks.size(); ++i) { | |
2771 | if (quorum.count(i) == 0) { | |
2772 | out_of_q.push_back(monmap->ranks[i]); | |
2773 | } | |
2774 | } | |
2775 | ss << ", out of quorum: " << joinify(out_of_q.begin(), | |
2776 | out_of_q.end(), std::string(", ")); | |
31f18b77 | 2777 | } |
7c673cae | 2778 | ss << "\n"; |
224ce89b WB |
2779 | if (mgrmon()->in_use()) { |
2780 | ss << " mgr: " << spacing; | |
2781 | mgrmon()->get_map().print_summary(nullptr, &ss); | |
2782 | ss << "\n"; | |
2783 | } | |
2784 | if (mdsmon()->get_fsmap().filesystem_count() > 0) { | |
2785 | ss << " mds: " << spacing << mdsmon()->get_fsmap() << "\n"; | |
2786 | } | |
2787 | ss << " osd: " << spacing; | |
2788 | osdmon()->osdmap.print_summary(NULL, ss, string(maxlen + 6, ' ')); | |
2789 | ss << "\n"; | |
2790 | for (auto& p : service_map.services) { | |
2791 | ss << " " << p.first << ": " << string(maxlen - p.first.size(), ' ') | |
2792 | << p.second.get_summary() << "\n"; | |
2793 | } | |
7c673cae | 2794 | } |
31f18b77 FG |
2795 | |
2796 | ss << "\n \n data:\n"; | |
2797 | pgservice->print_summary(NULL, &ss); | |
2798 | ss << "\n "; | |
7c673cae FG |
2799 | } |
2800 | } | |
2801 | ||
2802 | void Monitor::_generate_command_map(map<string,cmd_vartype>& cmdmap, | |
2803 | map<string,string> ¶m_str_map) | |
2804 | { | |
2805 | for (map<string,cmd_vartype>::const_iterator p = cmdmap.begin(); | |
2806 | p != cmdmap.end(); ++p) { | |
2807 | if (p->first == "prefix") | |
2808 | continue; | |
2809 | if (p->first == "caps") { | |
2810 | vector<string> cv; | |
2811 | if (cmd_getval(g_ceph_context, cmdmap, "caps", cv) && | |
2812 | cv.size() % 2 == 0) { | |
2813 | for (unsigned i = 0; i < cv.size(); i += 2) { | |
2814 | string k = string("caps_") + cv[i]; | |
2815 | param_str_map[k] = cv[i + 1]; | |
2816 | } | |
2817 | continue; | |
2818 | } | |
2819 | } | |
2820 | param_str_map[p->first] = cmd_vartype_stringify(p->second); | |
2821 | } | |
2822 | } | |
2823 | ||
c07f9fc5 FG |
2824 | const MonCommand *Monitor::_get_moncommand( |
2825 | const string &cmd_prefix, | |
d2e6a577 FG |
2826 | const vector<MonCommand>& cmds) |
2827 | { | |
2828 | for (auto& c : cmds) { | |
2829 | if (c.cmdstring.compare(0, cmd_prefix.size(), cmd_prefix) == 0) { | |
2830 | return &c; | |
7c673cae FG |
2831 | } |
2832 | } | |
d2e6a577 | 2833 | return nullptr; |
7c673cae FG |
2834 | } |
2835 | ||
2836 | bool Monitor::_allowed_command(MonSession *s, string &module, string &prefix, | |
2837 | const map<string,cmd_vartype>& cmdmap, | |
2838 | const map<string,string>& param_str_map, | |
2839 | const MonCommand *this_cmd) { | |
2840 | ||
2841 | bool cmd_r = this_cmd->requires_perm('r'); | |
2842 | bool cmd_w = this_cmd->requires_perm('w'); | |
2843 | bool cmd_x = this_cmd->requires_perm('x'); | |
2844 | ||
2845 | bool capable = s->caps.is_capable( | |
2846 | g_ceph_context, | |
2847 | CEPH_ENTITY_TYPE_MON, | |
2848 | s->entity_name, | |
2849 | module, prefix, param_str_map, | |
2850 | cmd_r, cmd_w, cmd_x); | |
2851 | ||
2852 | dout(10) << __func__ << " " << (capable ? "" : "not ") << "capable" << dendl; | |
2853 | return capable; | |
2854 | } | |
2855 | ||
c07f9fc5 | 2856 | void Monitor::format_command_descriptions(const std::vector<MonCommand> &commands, |
7c673cae FG |
2857 | Formatter *f, |
2858 | bufferlist *rdata, | |
2859 | bool hide_mgr_flag) | |
2860 | { | |
2861 | int cmdnum = 0; | |
2862 | f->open_object_section("command_descriptions"); | |
c07f9fc5 FG |
2863 | for (const auto &cmd : commands) { |
2864 | unsigned flags = cmd.flags; | |
7c673cae FG |
2865 | if (hide_mgr_flag) { |
2866 | flags &= ~MonCommand::FLAG_MGR; | |
2867 | } | |
2868 | ostringstream secname; | |
2869 | secname << "cmd" << setfill('0') << std::setw(3) << cmdnum; | |
2870 | dump_cmddesc_to_json(f, secname.str(), | |
c07f9fc5 FG |
2871 | cmd.cmdstring, cmd.helpstring, cmd.module, |
2872 | cmd.req_perms, cmd.availability, flags); | |
7c673cae FG |
2873 | cmdnum++; |
2874 | } | |
2875 | f->close_section(); // command_descriptions | |
2876 | ||
2877 | f->flush(*rdata); | |
2878 | } | |
2879 | ||
7c673cae FG |
2880 | bool Monitor::is_keyring_required() |
2881 | { | |
2882 | string auth_cluster_required = g_conf->auth_supported.empty() ? | |
2883 | g_conf->auth_cluster_required : g_conf->auth_supported; | |
2884 | string auth_service_required = g_conf->auth_supported.empty() ? | |
2885 | g_conf->auth_service_required : g_conf->auth_supported; | |
2886 | ||
2887 | return auth_service_required == "cephx" || | |
2888 | auth_cluster_required == "cephx"; | |
2889 | } | |
2890 | ||
2891 | struct C_MgrProxyCommand : public Context { | |
2892 | Monitor *mon; | |
2893 | MonOpRequestRef op; | |
2894 | uint64_t size; | |
2895 | bufferlist outbl; | |
2896 | string outs; | |
2897 | C_MgrProxyCommand(Monitor *mon, MonOpRequestRef op, uint64_t s) | |
2898 | : mon(mon), op(op), size(s) { } | |
2899 | void finish(int r) { | |
2900 | Mutex::Locker l(mon->lock); | |
2901 | mon->mgr_proxy_bytes -= size; | |
2902 | mon->reply_command(op, r, outs, outbl, 0); | |
2903 | } | |
2904 | }; | |
2905 | ||
2906 | void Monitor::handle_command(MonOpRequestRef op) | |
2907 | { | |
2908 | assert(op->is_type_command()); | |
2909 | MMonCommand *m = static_cast<MMonCommand*>(op->get_req()); | |
2910 | if (m->fsid != monmap->fsid) { | |
2911 | dout(0) << "handle_command on fsid " << m->fsid << " != " << monmap->fsid << dendl; | |
2912 | reply_command(op, -EPERM, "wrong fsid", 0); | |
2913 | return; | |
2914 | } | |
2915 | ||
2916 | MonSession *session = static_cast<MonSession *>( | |
2917 | m->get_connection()->get_priv()); | |
2918 | if (!session) { | |
2919 | dout(5) << __func__ << " dropping stray message " << *m << dendl; | |
2920 | return; | |
2921 | } | |
2922 | BOOST_SCOPE_EXIT_ALL(=) { | |
2923 | session->put(); | |
2924 | }; | |
2925 | ||
2926 | if (m->cmd.empty()) { | |
2927 | string rs = "No command supplied"; | |
2928 | reply_command(op, -EINVAL, rs, 0); | |
2929 | return; | |
2930 | } | |
2931 | ||
2932 | string prefix; | |
2933 | vector<string> fullcmd; | |
2934 | map<string, cmd_vartype> cmdmap; | |
2935 | stringstream ss, ds; | |
2936 | bufferlist rdata; | |
2937 | string rs; | |
2938 | int r = -EINVAL; | |
2939 | rs = "unrecognized command"; | |
2940 | ||
2941 | if (!cmdmap_from_json(m->cmd, &cmdmap, ss)) { | |
2942 | // ss has reason for failure | |
2943 | r = -EINVAL; | |
2944 | rs = ss.str(); | |
2945 | if (!m->get_source().is_mon()) // don't reply to mon->mon commands | |
2946 | reply_command(op, r, rs, 0); | |
2947 | return; | |
2948 | } | |
2949 | ||
2950 | // check return value. If no prefix parameter provided, | |
2951 | // return value will be false, then return error info. | |
2952 | if (!cmd_getval(g_ceph_context, cmdmap, "prefix", prefix)) { | |
2953 | reply_command(op, -EINVAL, "command prefix not found", 0); | |
2954 | return; | |
2955 | } | |
2956 | ||
2957 | // check prefix is empty | |
2958 | if (prefix.empty()) { | |
2959 | reply_command(op, -EINVAL, "command prefix must not be empty", 0); | |
2960 | return; | |
2961 | } | |
2962 | ||
2963 | if (prefix == "get_command_descriptions") { | |
2964 | bufferlist rdata; | |
2965 | Formatter *f = Formatter::create("json"); | |
2966 | // hide mgr commands until luminous upgrade is complete | |
2967 | bool hide_mgr_flag = | |
31f18b77 | 2968 | osdmon()->osdmap.require_osd_release < CEPH_RELEASE_LUMINOUS; |
c07f9fc5 FG |
2969 | |
2970 | std::vector<MonCommand> commands; | |
d2e6a577 FG |
2971 | |
2972 | // only include mgr commands once all mons are upgrade (and we've dropped | |
2973 | // the hard-coded PGMonitor commands) | |
2974 | if (quorum_mon_features.contains_all(ceph::features::mon::FEATURE_LUMINOUS)) { | |
2975 | commands = static_cast<MgrMonitor*>( | |
c07f9fc5 | 2976 | paxos_service[PAXOS_MGR])->get_command_descs(); |
d2e6a577 | 2977 | } |
c07f9fc5 | 2978 | |
d2e6a577 FG |
2979 | for (auto& c : leader_mon_commands) { |
2980 | commands.push_back(c); | |
c07f9fc5 FG |
2981 | } |
2982 | ||
2983 | format_command_descriptions(commands, f, &rdata, hide_mgr_flag); | |
7c673cae FG |
2984 | delete f; |
2985 | reply_command(op, 0, "", rdata, 0); | |
2986 | return; | |
2987 | } | |
2988 | ||
2989 | string module; | |
2990 | string err; | |
2991 | ||
2992 | dout(0) << "handle_command " << *m << dendl; | |
2993 | ||
2994 | string format; | |
2995 | cmd_getval(g_ceph_context, cmdmap, "format", format, string("plain")); | |
2996 | boost::scoped_ptr<Formatter> f(Formatter::create(format)); | |
2997 | ||
2998 | get_str_vec(prefix, fullcmd); | |
2999 | ||
3000 | // make sure fullcmd is not empty. | |
3001 | // invalid prefix will cause empty vector fullcmd. | |
3002 | // such as, prefix=";,,;" | |
3003 | if (fullcmd.empty()) { | |
3004 | reply_command(op, -EINVAL, "command requires a prefix to be valid", 0); | |
3005 | return; | |
3006 | } | |
3007 | ||
3008 | module = fullcmd[0]; | |
3009 | ||
3010 | // validate command is in leader map | |
3011 | ||
3012 | const MonCommand *leader_cmd; | |
c07f9fc5 FG |
3013 | const auto& mgr_cmds = mgrmon()->get_command_descs(); |
3014 | const MonCommand *mgr_cmd = nullptr; | |
3015 | if (!mgr_cmds.empty()) { | |
d2e6a577 | 3016 | mgr_cmd = _get_moncommand(prefix, mgr_cmds); |
c07f9fc5 | 3017 | } |
d2e6a577 | 3018 | leader_cmd = _get_moncommand(prefix, leader_mon_commands); |
7c673cae | 3019 | if (!leader_cmd) { |
c07f9fc5 FG |
3020 | leader_cmd = mgr_cmd; |
3021 | if (!leader_cmd) { | |
3022 | reply_command(op, -EINVAL, "command not known", 0); | |
3023 | return; | |
3024 | } | |
7c673cae FG |
3025 | } |
3026 | // validate command is in our map & matches, or forward if it is allowed | |
d2e6a577 FG |
3027 | const MonCommand *mon_cmd = _get_moncommand( |
3028 | prefix, | |
3029 | get_local_commands(quorum_mon_features)); | |
c07f9fc5 FG |
3030 | if (!mon_cmd) { |
3031 | mon_cmd = mgr_cmd; | |
3032 | } | |
7c673cae FG |
3033 | if (!is_leader()) { |
3034 | if (!mon_cmd) { | |
3035 | if (leader_cmd->is_noforward()) { | |
3036 | reply_command(op, -EINVAL, | |
3037 | "command not locally supported and not allowed to forward", | |
3038 | 0); | |
3039 | return; | |
3040 | } | |
3041 | dout(10) << "Command not locally supported, forwarding request " | |
3042 | << m << dendl; | |
3043 | forward_request_leader(op); | |
3044 | return; | |
3045 | } else if (!mon_cmd->is_compat(leader_cmd)) { | |
3046 | if (mon_cmd->is_noforward()) { | |
3047 | reply_command(op, -EINVAL, | |
3048 | "command not compatible with leader and not allowed to forward", | |
3049 | 0); | |
3050 | return; | |
3051 | } | |
3052 | dout(10) << "Command not compatible with leader, forwarding request " | |
3053 | << m << dendl; | |
3054 | forward_request_leader(op); | |
3055 | return; | |
3056 | } | |
3057 | } | |
3058 | ||
3059 | if (mon_cmd->is_obsolete() || | |
3060 | (cct->_conf->mon_debug_deprecated_as_obsolete | |
3061 | && mon_cmd->is_deprecated())) { | |
3062 | reply_command(op, -ENOTSUP, | |
3063 | "command is obsolete; please check usage and/or man page", | |
3064 | 0); | |
3065 | return; | |
3066 | } | |
3067 | ||
3068 | if (session->proxy_con && mon_cmd->is_noforward()) { | |
3069 | dout(10) << "Got forward for noforward command " << m << dendl; | |
3070 | reply_command(op, -EINVAL, "forward for noforward command", rdata, 0); | |
3071 | return; | |
3072 | } | |
3073 | ||
3074 | /* what we perceive as being the service the command falls under */ | |
3075 | string service(mon_cmd->module); | |
3076 | ||
3077 | dout(25) << __func__ << " prefix='" << prefix | |
3078 | << "' module='" << module | |
3079 | << "' service='" << service << "'" << dendl; | |
3080 | ||
3081 | bool cmd_is_rw = | |
3082 | (mon_cmd->requires_perm('w') || mon_cmd->requires_perm('x')); | |
3083 | ||
3084 | // validate user's permissions for requested command | |
3085 | map<string,string> param_str_map; | |
3086 | _generate_command_map(cmdmap, param_str_map); | |
3087 | if (!_allowed_command(session, service, prefix, cmdmap, | |
3088 | param_str_map, mon_cmd)) { | |
3089 | dout(1) << __func__ << " access denied" << dendl; | |
3090 | (cmd_is_rw ? audit_clog->info() : audit_clog->debug()) | |
3091 | << "from='" << session->inst << "' " | |
3092 | << "entity='" << session->entity_name << "' " | |
3093 | << "cmd=" << m->cmd << ": access denied"; | |
3094 | reply_command(op, -EACCES, "access denied", 0); | |
3095 | return; | |
3096 | } | |
3097 | ||
3098 | (cmd_is_rw ? audit_clog->info() : audit_clog->debug()) | |
3099 | << "from='" << session->inst << "' " | |
3100 | << "entity='" << session->entity_name << "' " | |
3101 | << "cmd=" << m->cmd << ": dispatch"; | |
3102 | ||
3103 | if (mon_cmd->is_mgr() && | |
31f18b77 | 3104 | osdmon()->osdmap.require_osd_release >= CEPH_RELEASE_LUMINOUS) { |
7c673cae FG |
3105 | const auto& hdr = m->get_header(); |
3106 | uint64_t size = hdr.front_len + hdr.middle_len + hdr.data_len; | |
3107 | uint64_t max = | |
3108 | g_conf->mon_client_bytes * g_conf->mon_mgr_proxy_client_bytes_ratio; | |
3109 | if (mgr_proxy_bytes + size > max) { | |
3110 | dout(10) << __func__ << " current mgr proxy bytes " << mgr_proxy_bytes | |
3111 | << " + " << size << " > max " << max << dendl; | |
3112 | reply_command(op, -EAGAIN, "hit limit on proxied mgr commands", rdata, 0); | |
3113 | return; | |
3114 | } | |
3115 | mgr_proxy_bytes += size; | |
3116 | dout(10) << __func__ << " proxying mgr command (+" << size | |
3117 | << " -> " << mgr_proxy_bytes << ")" << dendl; | |
3118 | C_MgrProxyCommand *fin = new C_MgrProxyCommand(this, op, size); | |
3119 | mgr_client.start_command(m->cmd, | |
3120 | m->get_data(), | |
3121 | &fin->outbl, | |
3122 | &fin->outs, | |
3123 | new C_OnFinisher(fin, &finisher)); | |
3124 | return; | |
3125 | } | |
3126 | ||
d2e6a577 FG |
3127 | if ((module == "mds" || module == "fs") && |
3128 | prefix != "fs authorize") { | |
7c673cae FG |
3129 | mdsmon()->dispatch(op); |
3130 | return; | |
3131 | } | |
31f18b77 FG |
3132 | if ((module == "osd" || prefix == "pg map") && |
3133 | prefix != "osd last-stat-seq") { | |
7c673cae FG |
3134 | osdmon()->dispatch(op); |
3135 | return; | |
3136 | } | |
3137 | ||
3138 | if (module == "pg") { | |
3139 | pgmon()->dispatch(op); | |
3140 | return; | |
3141 | } | |
3142 | if (module == "mon" && | |
3143 | /* Let the Monitor class handle the following commands: | |
3144 | * 'mon compact' | |
3145 | * 'mon scrub' | |
3146 | * 'mon sync force' | |
3147 | */ | |
3148 | prefix != "mon compact" && | |
3149 | prefix != "mon scrub" && | |
3150 | prefix != "mon sync force" && | |
31f18b77 FG |
3151 | prefix != "mon metadata" && |
3152 | prefix != "mon versions" && | |
3153 | prefix != "mon count-metadata") { | |
7c673cae FG |
3154 | monmon()->dispatch(op); |
3155 | return; | |
3156 | } | |
d2e6a577 | 3157 | if (module == "auth" || prefix == "fs authorize") { |
7c673cae FG |
3158 | authmon()->dispatch(op); |
3159 | return; | |
3160 | } | |
3161 | if (module == "log") { | |
3162 | logmon()->dispatch(op); | |
3163 | return; | |
3164 | } | |
3165 | ||
3166 | if (module == "config-key") { | |
3167 | config_key_service->dispatch(op); | |
3168 | return; | |
3169 | } | |
3170 | ||
3171 | if (module == "mgr") { | |
3172 | mgrmon()->dispatch(op); | |
3173 | return; | |
3174 | } | |
3175 | ||
3176 | if (prefix == "fsid") { | |
3177 | if (f) { | |
3178 | f->open_object_section("fsid"); | |
3179 | f->dump_stream("fsid") << monmap->fsid; | |
3180 | f->close_section(); | |
3181 | f->flush(rdata); | |
3182 | } else { | |
3183 | ds << monmap->fsid; | |
3184 | rdata.append(ds); | |
3185 | } | |
3186 | reply_command(op, 0, "", rdata, 0); | |
3187 | return; | |
3188 | } | |
3189 | ||
3190 | if (prefix == "scrub" || prefix == "mon scrub") { | |
3191 | wait_for_paxos_write(); | |
3192 | if (is_leader()) { | |
3193 | int r = scrub_start(); | |
3194 | reply_command(op, r, "", rdata, 0); | |
3195 | } else if (is_peon()) { | |
3196 | forward_request_leader(op); | |
3197 | } else { | |
3198 | reply_command(op, -EAGAIN, "no quorum", rdata, 0); | |
3199 | } | |
3200 | return; | |
3201 | } | |
3202 | ||
3203 | if (prefix == "compact" || prefix == "mon compact") { | |
3204 | dout(1) << "triggering manual compaction" << dendl; | |
3205 | utime_t start = ceph_clock_now(); | |
3206 | store->compact(); | |
3207 | utime_t end = ceph_clock_now(); | |
3208 | end -= start; | |
3209 | dout(1) << "finished manual compaction in " << end << " seconds" << dendl; | |
3210 | ostringstream oss; | |
224ce89b | 3211 | oss << "compacted " << g_conf->get_val<std::string>("mon_keyvaluedb") << " in " << end << " seconds"; |
7c673cae FG |
3212 | rs = oss.str(); |
3213 | r = 0; | |
3214 | } | |
3215 | else if (prefix == "injectargs") { | |
3216 | vector<string> injected_args; | |
3217 | cmd_getval(g_ceph_context, cmdmap, "injected_args", injected_args); | |
3218 | if (!injected_args.empty()) { | |
3219 | dout(0) << "parsing injected options '" << injected_args << "'" << dendl; | |
3220 | ostringstream oss; | |
3221 | r = g_conf->injectargs(str_join(injected_args, " "), &oss); | |
3222 | ss << "injectargs:" << oss.str(); | |
3223 | rs = ss.str(); | |
3224 | goto out; | |
3225 | } else { | |
3226 | rs = "must supply options to be parsed in a single string"; | |
3227 | r = -EINVAL; | |
3228 | } | |
224ce89b WB |
3229 | } else if (prefix == "time-sync-status") { |
3230 | if (!f) | |
3231 | f.reset(Formatter::create("json-pretty")); | |
3232 | f->open_object_section("time_sync"); | |
3233 | if (!timecheck_skews.empty()) { | |
3234 | f->open_object_section("time_skew_status"); | |
3235 | for (auto& i : timecheck_skews) { | |
3236 | entity_inst_t inst = i.first; | |
3237 | double skew = i.second; | |
3238 | double latency = timecheck_latencies[inst]; | |
3239 | string name = monmap->get_name(inst.addr); | |
3240 | ostringstream tcss; | |
3241 | health_status_t tcstatus = timecheck_status(tcss, skew, latency); | |
3242 | f->open_object_section(name.c_str()); | |
3243 | f->dump_float("skew", skew); | |
3244 | f->dump_float("latency", latency); | |
3245 | f->dump_stream("health") << tcstatus; | |
3246 | if (tcstatus != HEALTH_OK) { | |
3247 | f->dump_stream("details") << tcss.str(); | |
3248 | } | |
3249 | f->close_section(); | |
3250 | } | |
3251 | f->close_section(); | |
3252 | } | |
3253 | f->open_object_section("timechecks"); | |
3254 | f->dump_unsigned("epoch", get_epoch()); | |
3255 | f->dump_int("round", timecheck_round); | |
3256 | f->dump_stream("round_status") << ((timecheck_round%2) ? | |
3257 | "on-going" : "finished"); | |
3258 | f->close_section(); | |
3259 | f->close_section(); | |
3260 | f->flush(rdata); | |
3261 | r = 0; | |
3262 | rs = ""; | |
c07f9fc5 FG |
3263 | } else if (prefix == "config set") { |
3264 | std::string key; | |
3265 | cmd_getval(cct, cmdmap, "key", key); | |
3266 | std::string val; | |
3267 | cmd_getval(cct, cmdmap, "value", val); | |
3268 | r = g_conf->set_val(key, val, true, &ss); | |
d2e6a577 FG |
3269 | if (r == 0) { |
3270 | g_conf->apply_changes(nullptr); | |
3271 | } | |
c07f9fc5 FG |
3272 | rs = ss.str(); |
3273 | goto out; | |
7c673cae FG |
3274 | } else if (prefix == "status" || |
3275 | prefix == "health" || | |
3276 | prefix == "df") { | |
3277 | string detail; | |
3278 | cmd_getval(g_ceph_context, cmdmap, "detail", detail); | |
3279 | ||
3280 | if (prefix == "status") { | |
3281 | // get_cluster_status handles f == NULL | |
3282 | get_cluster_status(ds, f.get()); | |
3283 | ||
3284 | if (f) { | |
3285 | f->flush(ds); | |
3286 | ds << '\n'; | |
3287 | } | |
3288 | rdata.append(ds); | |
3289 | } else if (prefix == "health") { | |
224ce89b WB |
3290 | if (osdmon()->osdmap.require_osd_release >= CEPH_RELEASE_LUMINOUS) { |
3291 | string plain; | |
3292 | get_health_status(detail == "detail", f.get(), f ? nullptr : &plain); | |
3293 | if (f) { | |
3294 | f->flush(rdata); | |
3295 | } else { | |
3296 | rdata.append(plain); | |
3297 | } | |
7c673cae | 3298 | } else { |
224ce89b WB |
3299 | list<string> health_str; |
3300 | get_health(health_str, detail == "detail" ? &rdata : NULL, f.get()); | |
3301 | if (f) { | |
3302 | f->flush(ds); | |
3303 | ds << '\n'; | |
3304 | } else { | |
3305 | assert(!health_str.empty()); | |
3306 | ds << health_str.front(); | |
3307 | health_str.pop_front(); | |
3308 | if (!health_str.empty()) { | |
3309 | ds << ' '; | |
3310 | ds << joinify(health_str.begin(), health_str.end(), string("; ")); | |
3311 | } | |
7c673cae | 3312 | } |
224ce89b WB |
3313 | bufferlist comb; |
3314 | comb.append(ds); | |
3315 | if (detail == "detail") | |
3316 | comb.append(rdata); | |
3317 | rdata = comb; | |
7c673cae | 3318 | } |
7c673cae FG |
3319 | } else if (prefix == "df") { |
3320 | bool verbose = (detail == "detail"); | |
3321 | if (f) | |
3322 | f->open_object_section("stats"); | |
3323 | ||
31f18b77 | 3324 | pgservice->dump_fs_stats(&ds, f.get(), verbose); |
7c673cae FG |
3325 | if (!f) |
3326 | ds << '\n'; | |
31f18b77 | 3327 | pgservice->dump_pool_stats(osdmon()->osdmap, &ds, f.get(), verbose); |
7c673cae FG |
3328 | |
3329 | if (f) { | |
3330 | f->close_section(); | |
3331 | f->flush(ds); | |
3332 | ds << '\n'; | |
3333 | } | |
3334 | } else { | |
3335 | assert(0 == "We should never get here!"); | |
3336 | return; | |
3337 | } | |
3338 | rdata.append(ds); | |
3339 | rs = ""; | |
3340 | r = 0; | |
3341 | } else if (prefix == "report") { | |
3342 | ||
3343 | // this must be formatted, in its current form | |
3344 | if (!f) | |
3345 | f.reset(Formatter::create("json-pretty")); | |
3346 | f->open_object_section("report"); | |
3347 | f->dump_stream("cluster_fingerprint") << fingerprint; | |
3348 | f->dump_string("version", ceph_version_to_str()); | |
3349 | f->dump_string("commit", git_version_to_str()); | |
3350 | f->dump_stream("timestamp") << ceph_clock_now(); | |
3351 | ||
3352 | vector<string> tagsvec; | |
3353 | cmd_getval(g_ceph_context, cmdmap, "tags", tagsvec); | |
3354 | string tagstr = str_join(tagsvec, " "); | |
3355 | if (!tagstr.empty()) | |
3356 | tagstr = tagstr.substr(0, tagstr.find_last_of(' ')); | |
3357 | f->dump_string("tag", tagstr); | |
3358 | ||
3359 | list<string> hs; | |
3360 | get_health(hs, NULL, f.get()); | |
3361 | ||
3362 | monmon()->dump_info(f.get()); | |
3363 | osdmon()->dump_info(f.get()); | |
3364 | mdsmon()->dump_info(f.get()); | |
7c673cae | 3365 | authmon()->dump_info(f.get()); |
31f18b77 | 3366 | pgservice->dump_info(f.get()); |
7c673cae FG |
3367 | |
3368 | paxos->dump_info(f.get()); | |
3369 | ||
3370 | f->close_section(); | |
3371 | f->flush(rdata); | |
3372 | ||
3373 | ostringstream ss2; | |
3374 | ss2 << "report " << rdata.crc32c(CEPH_MON_PORT); | |
3375 | rs = ss2.str(); | |
3376 | r = 0; | |
31f18b77 FG |
3377 | } else if (prefix == "osd last-stat-seq") { |
3378 | int64_t osd; | |
3379 | cmd_getval(g_ceph_context, cmdmap, "id", osd); | |
3380 | uint64_t seq = mgrstatmon()->get_last_osd_stat_seq(osd); | |
3381 | if (f) { | |
3382 | f->dump_unsigned("seq", seq); | |
3383 | f->flush(ds); | |
3384 | } else { | |
3385 | ds << seq; | |
3386 | rdata.append(ds); | |
3387 | } | |
3388 | rs = ""; | |
3389 | r = 0; | |
7c673cae FG |
3390 | } else if (prefix == "node ls") { |
3391 | string node_type("all"); | |
3392 | cmd_getval(g_ceph_context, cmdmap, "type", node_type); | |
3393 | if (!f) | |
3394 | f.reset(Formatter::create("json-pretty")); | |
3395 | if (node_type == "all") { | |
3396 | f->open_object_section("nodes"); | |
3397 | print_nodes(f.get(), ds); | |
3398 | osdmon()->print_nodes(f.get()); | |
3399 | mdsmon()->print_nodes(f.get()); | |
3400 | f->close_section(); | |
3401 | } else if (node_type == "mon") { | |
3402 | print_nodes(f.get(), ds); | |
3403 | } else if (node_type == "osd") { | |
3404 | osdmon()->print_nodes(f.get()); | |
3405 | } else if (node_type == "mds") { | |
3406 | mdsmon()->print_nodes(f.get()); | |
3407 | } | |
3408 | f->flush(ds); | |
3409 | rdata.append(ds); | |
3410 | rs = ""; | |
3411 | r = 0; | |
31f18b77 FG |
3412 | } else if (prefix == "features") { |
3413 | if (!is_leader() && !is_peon()) { | |
3414 | dout(10) << " waiting for quorum" << dendl; | |
3415 | waitfor_quorum.push_back(new C_RetryMessage(this, op)); | |
3416 | return; | |
3417 | } | |
3418 | if (!is_leader()) { | |
3419 | forward_request_leader(op); | |
3420 | return; | |
3421 | } | |
3422 | if (!f) | |
3423 | f.reset(Formatter::create("json-pretty")); | |
3424 | FeatureMap fm; | |
3425 | get_combined_feature_map(&fm); | |
3426 | f->dump_object("features", fm); | |
3427 | f->flush(rdata); | |
3428 | rs = ""; | |
3429 | r = 0; | |
7c673cae FG |
3430 | } else if (prefix == "mon metadata") { |
3431 | if (!f) | |
3432 | f.reset(Formatter::create("json-pretty")); | |
3433 | ||
3434 | string name; | |
3435 | bool all = !cmd_getval(g_ceph_context, cmdmap, "id", name); | |
3436 | if (!all) { | |
3437 | // Dump a single mon's metadata | |
3438 | int mon = monmap->get_rank(name); | |
3439 | if (mon < 0) { | |
3440 | rs = "requested mon not found"; | |
3441 | r = -ENOENT; | |
3442 | goto out; | |
3443 | } | |
3444 | f->open_object_section("mon_metadata"); | |
3445 | r = get_mon_metadata(mon, f.get(), ds); | |
3446 | f->close_section(); | |
3447 | } else { | |
3448 | // Dump all mons' metadata | |
3449 | r = 0; | |
3450 | f->open_array_section("mon_metadata"); | |
3451 | for (unsigned int rank = 0; rank < monmap->size(); ++rank) { | |
3452 | std::ostringstream get_err; | |
3453 | f->open_object_section("mon"); | |
3454 | f->dump_string("name", monmap->get_name(rank)); | |
3455 | r = get_mon_metadata(rank, f.get(), get_err); | |
3456 | f->close_section(); | |
3457 | if (r == -ENOENT || r == -EINVAL) { | |
3458 | dout(1) << get_err.str() << dendl; | |
3459 | // Drop error, list what metadata we do have | |
3460 | r = 0; | |
3461 | } else if (r != 0) { | |
3462 | derr << "Unexpected error from get_mon_metadata: " | |
3463 | << cpp_strerror(r) << dendl; | |
3464 | ds << get_err.str(); | |
3465 | break; | |
3466 | } | |
3467 | } | |
3468 | f->close_section(); | |
3469 | } | |
3470 | ||
3471 | f->flush(ds); | |
3472 | rdata.append(ds); | |
3473 | rs = ""; | |
31f18b77 FG |
3474 | } else if (prefix == "mon versions") { |
3475 | if (!f) | |
3476 | f.reset(Formatter::create("json-pretty")); | |
3477 | count_metadata("ceph_version", f.get()); | |
3478 | f->flush(ds); | |
3479 | rdata.append(ds); | |
3480 | rs = ""; | |
3481 | r = 0; | |
3482 | } else if (prefix == "mon count-metadata") { | |
3483 | if (!f) | |
3484 | f.reset(Formatter::create("json-pretty")); | |
3485 | string field; | |
3486 | cmd_getval(g_ceph_context, cmdmap, "property", field); | |
3487 | count_metadata(field, f.get()); | |
3488 | f->flush(ds); | |
3489 | rdata.append(ds); | |
3490 | rs = ""; | |
3491 | r = 0; | |
7c673cae FG |
3492 | } else if (prefix == "quorum_status") { |
3493 | // make sure our map is readable and up to date | |
3494 | if (!is_leader() && !is_peon()) { | |
3495 | dout(10) << " waiting for quorum" << dendl; | |
3496 | waitfor_quorum.push_back(new C_RetryMessage(this, op)); | |
3497 | return; | |
3498 | } | |
3499 | _quorum_status(f.get(), ds); | |
3500 | rdata.append(ds); | |
3501 | rs = ""; | |
3502 | r = 0; | |
3503 | } else if (prefix == "mon_status") { | |
3504 | get_mon_status(f.get(), ds); | |
3505 | if (f) | |
3506 | f->flush(ds); | |
3507 | rdata.append(ds); | |
3508 | rs = ""; | |
3509 | r = 0; | |
3510 | } else if (prefix == "sync force" || | |
3511 | prefix == "mon sync force") { | |
3512 | string validate1, validate2; | |
3513 | cmd_getval(g_ceph_context, cmdmap, "validate1", validate1); | |
3514 | cmd_getval(g_ceph_context, cmdmap, "validate2", validate2); | |
3515 | if (validate1 != "--yes-i-really-mean-it" || | |
3516 | validate2 != "--i-know-what-i-am-doing") { | |
3517 | r = -EINVAL; | |
3518 | rs = "are you SURE? this will mean the monitor store will be " | |
3519 | "erased. pass '--yes-i-really-mean-it " | |
3520 | "--i-know-what-i-am-doing' if you really do."; | |
3521 | goto out; | |
3522 | } | |
3523 | sync_force(f.get(), ds); | |
3524 | rs = ds.str(); | |
3525 | r = 0; | |
3526 | } else if (prefix == "heap") { | |
3527 | if (!ceph_using_tcmalloc()) | |
3528 | rs = "tcmalloc not enabled, can't use heap profiler commands\n"; | |
3529 | else { | |
3530 | string heapcmd; | |
3531 | cmd_getval(g_ceph_context, cmdmap, "heapcmd", heapcmd); | |
3532 | // XXX 1-element vector, change at callee or make vector here? | |
3533 | vector<string> heapcmd_vec; | |
3534 | get_str_vec(heapcmd, heapcmd_vec); | |
3535 | ceph_heap_profiler_handle_command(heapcmd_vec, ds); | |
3536 | rdata.append(ds); | |
3537 | rs = ""; | |
3538 | r = 0; | |
3539 | } | |
3540 | } else if (prefix == "quorum") { | |
3541 | string quorumcmd; | |
3542 | cmd_getval(g_ceph_context, cmdmap, "quorumcmd", quorumcmd); | |
3543 | if (quorumcmd == "exit") { | |
3544 | start_election(); | |
3545 | elector.stop_participating(); | |
3546 | rs = "stopped responding to quorum, initiated new election"; | |
3547 | r = 0; | |
3548 | } else if (quorumcmd == "enter") { | |
3549 | elector.start_participating(); | |
3550 | start_election(); | |
3551 | rs = "started responding to quorum, initiated new election"; | |
3552 | r = 0; | |
3553 | } else { | |
3554 | rs = "needs a valid 'quorum' command"; | |
3555 | r = -EINVAL; | |
3556 | } | |
3557 | } else if (prefix == "version") { | |
3558 | if (f) { | |
3559 | f->open_object_section("version"); | |
3560 | f->dump_string("version", pretty_version_to_str()); | |
3561 | f->close_section(); | |
3562 | f->flush(ds); | |
3563 | } else { | |
3564 | ds << pretty_version_to_str(); | |
3565 | } | |
3566 | rdata.append(ds); | |
3567 | rs = ""; | |
3568 | r = 0; | |
c07f9fc5 FG |
3569 | } else if (prefix == "versions") { |
3570 | if (!f) | |
3571 | f.reset(Formatter::create("json-pretty")); | |
3572 | map<string,int> overall; | |
3573 | f->open_object_section("version"); | |
3574 | map<string,int> mon, mgr, osd, mds; | |
3575 | ||
3576 | count_metadata("ceph_version", &mon); | |
3577 | f->open_object_section("mon"); | |
3578 | for (auto& p : mon) { | |
3579 | f->dump_int(p.first.c_str(), p.second); | |
3580 | overall[p.first] += p.second; | |
3581 | } | |
3582 | f->close_section(); | |
3583 | ||
3584 | mgrmon()->count_metadata("ceph_version", &mgr); | |
3585 | f->open_object_section("mgr"); | |
3586 | for (auto& p : mgr) { | |
3587 | f->dump_int(p.first.c_str(), p.second); | |
3588 | overall[p.first] += p.second; | |
3589 | } | |
3590 | f->close_section(); | |
3591 | ||
3592 | osdmon()->count_metadata("ceph_version", &osd); | |
3593 | f->open_object_section("osd"); | |
3594 | for (auto& p : osd) { | |
3595 | f->dump_int(p.first.c_str(), p.second); | |
3596 | overall[p.first] += p.second; | |
3597 | } | |
3598 | f->close_section(); | |
3599 | ||
3600 | mdsmon()->count_metadata("ceph_version", &mds); | |
3601 | f->open_object_section("mds"); | |
3602 | for (auto& p : mon) { | |
3603 | f->dump_int(p.first.c_str(), p.second); | |
3604 | overall[p.first] += p.second; | |
3605 | } | |
3606 | f->close_section(); | |
3607 | ||
3608 | for (auto& p : mgrstatmon()->get_service_map().services) { | |
3609 | f->open_object_section(p.first.c_str()); | |
3610 | map<string,int> m; | |
3611 | p.second.count_metadata("ceph_version", &m); | |
3612 | for (auto& q : m) { | |
3613 | f->dump_int(q.first.c_str(), q.second); | |
3614 | overall[q.first] += q.second; | |
3615 | } | |
3616 | f->close_section(); | |
3617 | } | |
3618 | ||
3619 | f->open_object_section("overall"); | |
3620 | for (auto& p : overall) { | |
3621 | f->dump_int(p.first.c_str(), p.second); | |
3622 | } | |
3623 | f->close_section(); | |
3624 | f->close_section(); | |
3625 | f->flush(rdata); | |
3626 | rs = ""; | |
3627 | r = 0; | |
7c673cae FG |
3628 | } |
3629 | ||
3630 | out: | |
3631 | if (!m->get_source().is_mon()) // don't reply to mon->mon commands | |
3632 | reply_command(op, r, rs, rdata, 0); | |
3633 | } | |
3634 | ||
3635 | void Monitor::reply_command(MonOpRequestRef op, int rc, const string &rs, version_t version) | |
3636 | { | |
3637 | bufferlist rdata; | |
3638 | reply_command(op, rc, rs, rdata, version); | |
3639 | } | |
3640 | ||
3641 | void Monitor::reply_command(MonOpRequestRef op, int rc, const string &rs, | |
3642 | bufferlist& rdata, version_t version) | |
3643 | { | |
3644 | MMonCommand *m = static_cast<MMonCommand*>(op->get_req()); | |
3645 | assert(m->get_type() == MSG_MON_COMMAND); | |
3646 | MMonCommandAck *reply = new MMonCommandAck(m->cmd, rc, rs, version); | |
3647 | reply->set_tid(m->get_tid()); | |
3648 | reply->set_data(rdata); | |
3649 | send_reply(op, reply); | |
3650 | } | |
3651 | ||
3652 | ||
3653 | // ------------------------ | |
3654 | // request/reply routing | |
3655 | // | |
3656 | // a client/mds/osd will connect to a random monitor. we need to forward any | |
3657 | // messages requiring state updates to the leader, and then route any replies | |
3658 | // back via the correct monitor and back to them. (the monitor will not | |
3659 | // initiate any connections.) | |
3660 | ||
3661 | void Monitor::forward_request_leader(MonOpRequestRef op) | |
3662 | { | |
3663 | op->mark_event(__func__); | |
3664 | ||
3665 | int mon = get_leader(); | |
3666 | MonSession *session = op->get_session(); | |
3667 | PaxosServiceMessage *req = op->get_req<PaxosServiceMessage>(); | |
3668 | ||
3669 | if (req->get_source().is_mon() && req->get_source_addr() != messenger->get_myaddr()) { | |
3670 | dout(10) << "forward_request won't forward (non-local) mon request " << *req << dendl; | |
3671 | } else if (session->proxy_con) { | |
3672 | dout(10) << "forward_request won't double fwd request " << *req << dendl; | |
3673 | } else if (!session->closed) { | |
3674 | RoutedRequest *rr = new RoutedRequest; | |
3675 | rr->tid = ++routed_request_tid; | |
3676 | rr->client_inst = req->get_source_inst(); | |
3677 | rr->con = req->get_connection(); | |
3678 | rr->con_features = rr->con->get_features(); | |
3679 | encode_message(req, CEPH_FEATURES_ALL, rr->request_bl); // for my use only; use all features | |
3680 | rr->session = static_cast<MonSession *>(session->get()); | |
3681 | rr->op = op; | |
3682 | routed_requests[rr->tid] = rr; | |
3683 | session->routed_request_tids.insert(rr->tid); | |
3684 | ||
3685 | dout(10) << "forward_request " << rr->tid << " request " << *req | |
3686 | << " features " << rr->con_features << dendl; | |
3687 | ||
3688 | MForward *forward = new MForward(rr->tid, | |
3689 | req, | |
3690 | rr->con_features, | |
3691 | rr->session->caps); | |
3692 | forward->set_priority(req->get_priority()); | |
3693 | if (session->auth_handler) { | |
3694 | forward->entity_name = session->entity_name; | |
3695 | } else if (req->get_source().is_mon()) { | |
3696 | forward->entity_name.set_type(CEPH_ENTITY_TYPE_MON); | |
3697 | } | |
3698 | messenger->send_message(forward, monmap->get_inst(mon)); | |
3699 | op->mark_forwarded(); | |
3700 | assert(op->get_req()->get_type() != 0); | |
3701 | } else { | |
3702 | dout(10) << "forward_request no session for request " << *req << dendl; | |
3703 | } | |
3704 | } | |
3705 | ||
3706 | // fake connection attached to forwarded messages | |
3707 | struct AnonConnection : public Connection { | |
3708 | explicit AnonConnection(CephContext *cct) : Connection(cct, NULL) {} | |
3709 | ||
3710 | int send_message(Message *m) override { | |
3711 | assert(!"send_message on anonymous connection"); | |
3712 | } | |
3713 | void send_keepalive() override { | |
3714 | assert(!"send_keepalive on anonymous connection"); | |
3715 | } | |
3716 | void mark_down() override { | |
3717 | // silently ignore | |
3718 | } | |
3719 | void mark_disposable() override { | |
3720 | // silengtly ignore | |
3721 | } | |
3722 | bool is_connected() override { return false; } | |
3723 | }; | |
3724 | ||
3725 | //extract the original message and put it into the regular dispatch function | |
3726 | void Monitor::handle_forward(MonOpRequestRef op) | |
3727 | { | |
3728 | MForward *m = static_cast<MForward*>(op->get_req()); | |
3729 | dout(10) << "received forwarded message from " << m->client | |
3730 | << " via " << m->get_source_inst() << dendl; | |
3731 | MonSession *session = op->get_session(); | |
3732 | assert(session); | |
3733 | ||
3734 | if (!session->is_capable("mon", MON_CAP_X)) { | |
3735 | dout(0) << "forward from entity with insufficient caps! " | |
3736 | << session->caps << dendl; | |
3737 | } else { | |
3738 | // see PaxosService::dispatch(); we rely on this being anon | |
3739 | // (c->msgr == NULL) | |
3740 | PaxosServiceMessage *req = m->claim_message(); | |
3741 | assert(req != NULL); | |
3742 | ||
3743 | ConnectionRef c(new AnonConnection(cct)); | |
3744 | MonSession *s = new MonSession(req->get_source_inst(), | |
3745 | static_cast<Connection*>(c.get())); | |
3746 | c->set_priv(s->get()); | |
3747 | c->set_peer_addr(m->client.addr); | |
3748 | c->set_peer_type(m->client.name.type()); | |
3749 | c->set_features(m->con_features); | |
3750 | ||
3751 | s->caps = m->client_caps; | |
3752 | dout(10) << " caps are " << s->caps << dendl; | |
3753 | s->entity_name = m->entity_name; | |
3754 | dout(10) << " entity name '" << s->entity_name << "' type " | |
3755 | << s->entity_name.get_type() << dendl; | |
3756 | s->proxy_con = m->get_connection(); | |
3757 | s->proxy_tid = m->tid; | |
3758 | ||
3759 | req->set_connection(c); | |
3760 | ||
3761 | // not super accurate, but better than nothing. | |
3762 | req->set_recv_stamp(m->get_recv_stamp()); | |
3763 | ||
3764 | /* | |
3765 | * note which election epoch this is; we will drop the message if | |
3766 | * there is a future election since our peers will resend routed | |
3767 | * requests in that case. | |
3768 | */ | |
3769 | req->rx_election_epoch = get_epoch(); | |
3770 | ||
3771 | /* Because this is a special fake connection, we need to break | |
3772 | the ref loop between Connection and MonSession differently | |
3773 | than we normally do. Here, the Message refers to the Connection | |
3774 | which refers to the Session, and nobody else refers to the Connection | |
3775 | or the Session. And due to the special nature of this message, | |
3776 | nobody refers to the Connection via the Session. So, clear out that | |
3777 | half of the ref loop.*/ | |
3778 | s->con.reset(NULL); | |
3779 | ||
3780 | dout(10) << " mesg " << req << " from " << m->get_source_addr() << dendl; | |
3781 | ||
3782 | _ms_dispatch(req); | |
3783 | s->put(); | |
3784 | } | |
3785 | } | |
3786 | ||
3787 | void Monitor::try_send_message(Message *m, const entity_inst_t& to) | |
3788 | { | |
3789 | dout(10) << "try_send_message " << *m << " to " << to << dendl; | |
3790 | ||
3791 | bufferlist bl; | |
3792 | encode_message(m, quorum_con_features, bl); | |
3793 | ||
3794 | messenger->send_message(m, to); | |
3795 | ||
3796 | for (int i=0; i<(int)monmap->size(); i++) { | |
3797 | if (i != rank) | |
3798 | messenger->send_message(new MRoute(bl, to), monmap->get_inst(i)); | |
3799 | } | |
3800 | } | |
3801 | ||
3802 | void Monitor::send_reply(MonOpRequestRef op, Message *reply) | |
3803 | { | |
3804 | op->mark_event(__func__); | |
3805 | ||
3806 | MonSession *session = op->get_session(); | |
3807 | assert(session); | |
3808 | Message *req = op->get_req(); | |
3809 | ConnectionRef con = op->get_connection(); | |
3810 | ||
3811 | reply->set_cct(g_ceph_context); | |
3812 | dout(2) << __func__ << " " << op << " " << reply << " " << *reply << dendl; | |
3813 | ||
3814 | if (!con) { | |
3815 | dout(2) << "send_reply no connection, dropping reply " << *reply | |
3816 | << " to " << req << " " << *req << dendl; | |
3817 | reply->put(); | |
3818 | op->mark_event("reply: no connection"); | |
3819 | return; | |
3820 | } | |
3821 | ||
3822 | if (!session->con && !session->proxy_con) { | |
3823 | dout(2) << "send_reply no connection, dropping reply " << *reply | |
3824 | << " to " << req << " " << *req << dendl; | |
3825 | reply->put(); | |
3826 | op->mark_event("reply: no connection"); | |
3827 | return; | |
3828 | } | |
3829 | ||
3830 | if (session->proxy_con) { | |
3831 | dout(15) << "send_reply routing reply to " << con->get_peer_addr() | |
3832 | << " via " << session->proxy_con->get_peer_addr() | |
3833 | << " for request " << *req << dendl; | |
3834 | session->proxy_con->send_message(new MRoute(session->proxy_tid, reply)); | |
3835 | op->mark_event("reply: send routed request"); | |
3836 | } else { | |
3837 | session->con->send_message(reply); | |
3838 | op->mark_event("reply: send"); | |
3839 | } | |
3840 | } | |
3841 | ||
3842 | void Monitor::no_reply(MonOpRequestRef op) | |
3843 | { | |
3844 | MonSession *session = op->get_session(); | |
3845 | Message *req = op->get_req(); | |
3846 | ||
3847 | if (session->proxy_con) { | |
3848 | dout(10) << "no_reply to " << req->get_source_inst() | |
3849 | << " via " << session->proxy_con->get_peer_addr() | |
3850 | << " for request " << *req << dendl; | |
3851 | session->proxy_con->send_message(new MRoute(session->proxy_tid, NULL)); | |
3852 | op->mark_event("no_reply: send routed request"); | |
3853 | } else { | |
3854 | dout(10) << "no_reply to " << req->get_source_inst() | |
3855 | << " " << *req << dendl; | |
3856 | op->mark_event("no_reply"); | |
3857 | } | |
3858 | } | |
3859 | ||
3860 | void Monitor::handle_route(MonOpRequestRef op) | |
3861 | { | |
3862 | MRoute *m = static_cast<MRoute*>(op->get_req()); | |
3863 | MonSession *session = op->get_session(); | |
3864 | //check privileges | |
3865 | if (!session->is_capable("mon", MON_CAP_X)) { | |
3866 | dout(0) << "MRoute received from entity without appropriate perms! " | |
3867 | << dendl; | |
3868 | return; | |
3869 | } | |
3870 | if (m->msg) | |
3871 | dout(10) << "handle_route " << *m->msg << " to " << m->dest << dendl; | |
3872 | else | |
3873 | dout(10) << "handle_route null to " << m->dest << dendl; | |
3874 | ||
3875 | // look it up | |
3876 | if (m->session_mon_tid) { | |
3877 | if (routed_requests.count(m->session_mon_tid)) { | |
3878 | RoutedRequest *rr = routed_requests[m->session_mon_tid]; | |
3879 | ||
3880 | // reset payload, in case encoding is dependent on target features | |
3881 | if (m->msg) { | |
3882 | m->msg->clear_payload(); | |
3883 | rr->con->send_message(m->msg); | |
3884 | m->msg = NULL; | |
3885 | } | |
3886 | if (m->send_osdmap_first) { | |
3887 | dout(10) << " sending osdmaps from " << m->send_osdmap_first << dendl; | |
3888 | osdmon()->send_incremental(m->send_osdmap_first, rr->session, | |
3889 | true, MonOpRequestRef()); | |
3890 | } | |
3891 | assert(rr->tid == m->session_mon_tid && rr->session->routed_request_tids.count(m->session_mon_tid)); | |
3892 | routed_requests.erase(m->session_mon_tid); | |
3893 | rr->session->routed_request_tids.erase(m->session_mon_tid); | |
3894 | delete rr; | |
3895 | } else { | |
3896 | dout(10) << " don't have routed request tid " << m->session_mon_tid << dendl; | |
3897 | } | |
3898 | } else { | |
3899 | dout(10) << " not a routed request, trying to send anyway" << dendl; | |
3900 | if (m->msg) { | |
3901 | messenger->send_message(m->msg, m->dest); | |
3902 | m->msg = NULL; | |
3903 | } | |
3904 | } | |
3905 | } | |
3906 | ||
3907 | void Monitor::resend_routed_requests() | |
3908 | { | |
3909 | dout(10) << "resend_routed_requests" << dendl; | |
3910 | int mon = get_leader(); | |
3911 | list<Context*> retry; | |
3912 | for (map<uint64_t, RoutedRequest*>::iterator p = routed_requests.begin(); | |
3913 | p != routed_requests.end(); | |
3914 | ++p) { | |
3915 | RoutedRequest *rr = p->second; | |
3916 | ||
3917 | if (mon == rank) { | |
3918 | dout(10) << " requeue for self tid " << rr->tid << dendl; | |
3919 | rr->op->mark_event("retry routed request"); | |
3920 | retry.push_back(new C_RetryMessage(this, rr->op)); | |
3921 | if (rr->session) { | |
3922 | assert(rr->session->routed_request_tids.count(p->first)); | |
3923 | rr->session->routed_request_tids.erase(p->first); | |
3924 | } | |
3925 | delete rr; | |
3926 | } else { | |
3927 | bufferlist::iterator q = rr->request_bl.begin(); | |
3928 | PaxosServiceMessage *req = (PaxosServiceMessage *)decode_message(cct, 0, q); | |
3929 | rr->op->mark_event("resend forwarded message to leader"); | |
3930 | dout(10) << " resend to mon." << mon << " tid " << rr->tid << " " << *req << dendl; | |
3931 | MForward *forward = new MForward(rr->tid, req, rr->con_features, | |
3932 | rr->session->caps); | |
3933 | req->put(); // forward takes its own ref; drop ours. | |
3934 | forward->client = rr->client_inst; | |
3935 | forward->set_priority(req->get_priority()); | |
3936 | messenger->send_message(forward, monmap->get_inst(mon)); | |
3937 | } | |
3938 | } | |
3939 | if (mon == rank) { | |
3940 | routed_requests.clear(); | |
3941 | finish_contexts(g_ceph_context, retry); | |
3942 | } | |
3943 | } | |
3944 | ||
3945 | void Monitor::remove_session(MonSession *s) | |
3946 | { | |
224ce89b WB |
3947 | dout(10) << "remove_session " << s << " " << s->inst |
3948 | << " features 0x" << std::hex << s->con_features << std::dec << dendl; | |
7c673cae FG |
3949 | assert(s->con); |
3950 | assert(!s->closed); | |
3951 | for (set<uint64_t>::iterator p = s->routed_request_tids.begin(); | |
3952 | p != s->routed_request_tids.end(); | |
3953 | ++p) { | |
3954 | assert(routed_requests.count(*p)); | |
3955 | RoutedRequest *rr = routed_requests[*p]; | |
3956 | dout(10) << " dropping routed request " << rr->tid << dendl; | |
3957 | delete rr; | |
3958 | routed_requests.erase(*p); | |
3959 | } | |
3960 | s->routed_request_tids.clear(); | |
3961 | s->con->set_priv(NULL); | |
3962 | session_map.remove_session(s); | |
3963 | logger->set(l_mon_num_sessions, session_map.get_size()); | |
3964 | logger->inc(l_mon_session_rm); | |
3965 | } | |
3966 | ||
3967 | void Monitor::remove_all_sessions() | |
3968 | { | |
3969 | Mutex::Locker l(session_map_lock); | |
3970 | while (!session_map.sessions.empty()) { | |
3971 | MonSession *s = session_map.sessions.front(); | |
3972 | remove_session(s); | |
3973 | if (logger) | |
3974 | logger->inc(l_mon_session_rm); | |
3975 | } | |
3976 | if (logger) | |
3977 | logger->set(l_mon_num_sessions, session_map.get_size()); | |
3978 | } | |
3979 | ||
3980 | void Monitor::send_command(const entity_inst_t& inst, | |
3981 | const vector<string>& com) | |
3982 | { | |
3983 | dout(10) << "send_command " << inst << "" << com << dendl; | |
3984 | MMonCommand *c = new MMonCommand(monmap->fsid); | |
3985 | c->cmd = com; | |
3986 | try_send_message(c, inst); | |
3987 | } | |
3988 | ||
3989 | void Monitor::waitlist_or_zap_client(MonOpRequestRef op) | |
3990 | { | |
3991 | /** | |
3992 | * Wait list the new session until we're in the quorum, assuming it's | |
3993 | * sufficiently new. | |
3994 | * tick() will periodically send them back through so we can send | |
3995 | * the client elsewhere if we don't think we're getting back in. | |
3996 | * | |
3997 | * But we whitelist a few sorts of messages: | |
3998 | * 1) Monitors can talk to us at any time, of course. | |
3999 | * 2) auth messages. It's unlikely to go through much faster, but | |
4000 | * it's possible we've just lost our quorum status and we want to take... | |
4001 | * 3) command messages. We want to accept these under all possible | |
4002 | * circumstances. | |
4003 | */ | |
4004 | Message *m = op->get_req(); | |
4005 | MonSession *s = op->get_session(); | |
4006 | ConnectionRef con = op->get_connection(); | |
4007 | utime_t too_old = ceph_clock_now(); | |
4008 | too_old -= g_ceph_context->_conf->mon_lease; | |
4009 | if (m->get_recv_stamp() > too_old && | |
4010 | con->is_connected()) { | |
4011 | dout(5) << "waitlisting message " << *m << dendl; | |
4012 | maybe_wait_for_quorum.push_back(new C_RetryMessage(this, op)); | |
4013 | op->mark_wait_for_quorum(); | |
4014 | } else { | |
4015 | dout(5) << "discarding message " << *m << " and sending client elsewhere" << dendl; | |
4016 | con->mark_down(); | |
4017 | // proxied sessions aren't registered and don't have a con; don't remove | |
4018 | // those. | |
4019 | if (!s->proxy_con) { | |
4020 | Mutex::Locker l(session_map_lock); | |
4021 | remove_session(s); | |
4022 | } | |
4023 | op->mark_zap(); | |
4024 | } | |
4025 | } | |
4026 | ||
4027 | void Monitor::_ms_dispatch(Message *m) | |
4028 | { | |
4029 | if (is_shutdown()) { | |
4030 | m->put(); | |
4031 | return; | |
4032 | } | |
4033 | ||
4034 | MonOpRequestRef op = op_tracker.create_request<MonOpRequest>(m); | |
4035 | bool src_is_mon = op->is_src_mon(); | |
4036 | op->mark_event("mon:_ms_dispatch"); | |
4037 | MonSession *s = op->get_session(); | |
4038 | if (s && s->closed) { | |
4039 | return; | |
4040 | } | |
224ce89b WB |
4041 | |
4042 | if (src_is_mon && s) { | |
4043 | ConnectionRef con = m->get_connection(); | |
4044 | if (con->get_messenger() && con->get_features() != s->con_features) { | |
4045 | // only update features if this is a non-anonymous connection | |
4046 | dout(10) << __func__ << " feature change for " << m->get_source_inst() | |
4047 | << " (was " << s->con_features | |
4048 | << ", now " << con->get_features() << ")" << dendl; | |
4049 | // connection features changed - recreate session. | |
4050 | if (s->con && s->con != con) { | |
4051 | dout(10) << __func__ << " connection for " << m->get_source_inst() | |
4052 | << " changed from session; mark down and replace" << dendl; | |
4053 | s->con->mark_down(); | |
4054 | } | |
4055 | if (s->item.is_on_list()) { | |
4056 | // forwarded messages' sessions are not in the sessions map and | |
4057 | // exist only while the op is being handled. | |
4058 | remove_session(s); | |
4059 | } | |
4060 | s->put(); | |
4061 | s = nullptr; | |
4062 | } | |
4063 | } | |
4064 | ||
7c673cae FG |
4065 | if (!s) { |
4066 | // if the sender is not a monitor, make sure their first message for a | |
4067 | // session is an MAuth. If it is not, assume it's a stray message, | |
4068 | // and considering that we are creating a new session it is safe to | |
4069 | // assume that the sender hasn't authenticated yet, so we have no way | |
4070 | // of assessing whether we should handle it or not. | |
4071 | if (!src_is_mon && (m->get_type() != CEPH_MSG_AUTH && | |
4072 | m->get_type() != CEPH_MSG_MON_GET_MAP && | |
4073 | m->get_type() != CEPH_MSG_PING)) { | |
4074 | dout(1) << __func__ << " dropping stray message " << *m | |
4075 | << " from " << m->get_source_inst() << dendl; | |
4076 | return; | |
4077 | } | |
4078 | ||
4079 | ConnectionRef con = m->get_connection(); | |
4080 | { | |
4081 | Mutex::Locker l(session_map_lock); | |
4082 | s = session_map.new_session(m->get_source_inst(), con.get()); | |
4083 | } | |
4084 | assert(s); | |
4085 | con->set_priv(s->get()); | |
224ce89b WB |
4086 | dout(10) << __func__ << " new session " << s << " " << *s |
4087 | << " features 0x" << std::hex | |
4088 | << s->con_features << std::dec << dendl; | |
7c673cae FG |
4089 | op->set_session(s); |
4090 | ||
4091 | logger->set(l_mon_num_sessions, session_map.get_size()); | |
4092 | logger->inc(l_mon_session_add); | |
4093 | ||
4094 | if (src_is_mon) { | |
4095 | // give it monitor caps; the peer type has been authenticated | |
4096 | dout(5) << __func__ << " setting monitor caps on this connection" << dendl; | |
4097 | if (!s->caps.is_allow_all()) // but no need to repeatedly copy | |
4098 | s->caps = *mon_caps; | |
4099 | } | |
4100 | s->put(); | |
4101 | } else { | |
4102 | dout(20) << __func__ << " existing session " << s << " for " << s->inst | |
4103 | << dendl; | |
4104 | } | |
4105 | ||
4106 | assert(s); | |
4107 | ||
4108 | s->session_timeout = ceph_clock_now(); | |
4109 | s->session_timeout += g_conf->mon_session_timeout; | |
4110 | ||
4111 | if (s->auth_handler) { | |
4112 | s->entity_name = s->auth_handler->get_entity_name(); | |
4113 | } | |
4114 | dout(20) << " caps " << s->caps.get_str() << dendl; | |
4115 | ||
4116 | if ((is_synchronizing() || | |
4117 | (s->global_id == 0 && !exited_quorum.is_zero())) && | |
4118 | !src_is_mon && | |
4119 | m->get_type() != CEPH_MSG_PING) { | |
4120 | waitlist_or_zap_client(op); | |
4121 | } else { | |
4122 | dispatch_op(op); | |
4123 | } | |
4124 | return; | |
4125 | } | |
4126 | ||
4127 | void Monitor::dispatch_op(MonOpRequestRef op) | |
4128 | { | |
4129 | op->mark_event("mon:dispatch_op"); | |
4130 | MonSession *s = op->get_session(); | |
4131 | assert(s); | |
4132 | if (s->closed) { | |
4133 | dout(10) << " session closed, dropping " << op->get_req() << dendl; | |
4134 | return; | |
4135 | } | |
4136 | ||
4137 | /* we will consider the default type as being 'monitor' until proven wrong */ | |
4138 | op->set_type_monitor(); | |
4139 | /* deal with all messages that do not necessarily need caps */ | |
4140 | bool dealt_with = true; | |
4141 | switch (op->get_req()->get_type()) { | |
4142 | // auth | |
4143 | case MSG_MON_GLOBAL_ID: | |
4144 | case CEPH_MSG_AUTH: | |
4145 | op->set_type_service(); | |
4146 | /* no need to check caps here */ | |
4147 | paxos_service[PAXOS_AUTH]->dispatch(op); | |
4148 | break; | |
4149 | ||
4150 | case CEPH_MSG_PING: | |
4151 | handle_ping(op); | |
4152 | break; | |
4153 | ||
4154 | /* MMonGetMap may be used by clients to obtain a monmap *before* | |
4155 | * authenticating with the monitor. We need to handle these without | |
4156 | * checking caps because, even on a cluster without cephx, we only set | |
4157 | * session caps *after* the auth handshake. A good example of this | |
4158 | * is when a client calls MonClient::get_monmap_privately(), which does | |
4159 | * not authenticate when obtaining a monmap. | |
4160 | */ | |
4161 | case CEPH_MSG_MON_GET_MAP: | |
4162 | handle_mon_get_map(op); | |
4163 | break; | |
4164 | ||
4165 | case CEPH_MSG_MON_METADATA: | |
4166 | return handle_mon_metadata(op); | |
4167 | ||
4168 | default: | |
4169 | dealt_with = false; | |
4170 | break; | |
4171 | } | |
4172 | if (dealt_with) | |
4173 | return; | |
4174 | ||
4175 | /* well, maybe the op belongs to a service... */ | |
4176 | op->set_type_service(); | |
4177 | /* deal with all messages which caps should be checked somewhere else */ | |
4178 | dealt_with = true; | |
4179 | switch (op->get_req()->get_type()) { | |
4180 | ||
4181 | // OSDs | |
4182 | case CEPH_MSG_MON_GET_OSDMAP: | |
4183 | case CEPH_MSG_POOLOP: | |
4184 | case MSG_OSD_BEACON: | |
4185 | case MSG_OSD_MARK_ME_DOWN: | |
4186 | case MSG_OSD_FULL: | |
4187 | case MSG_OSD_FAILURE: | |
4188 | case MSG_OSD_BOOT: | |
4189 | case MSG_OSD_ALIVE: | |
4190 | case MSG_OSD_PGTEMP: | |
4191 | case MSG_OSD_PG_CREATED: | |
4192 | case MSG_REMOVE_SNAPS: | |
4193 | paxos_service[PAXOS_OSDMAP]->dispatch(op); | |
4194 | break; | |
4195 | ||
4196 | // MDSs | |
4197 | case MSG_MDS_BEACON: | |
4198 | case MSG_MDS_OFFLOAD_TARGETS: | |
4199 | paxos_service[PAXOS_MDSMAP]->dispatch(op); | |
4200 | break; | |
4201 | ||
4202 | // Mgrs | |
4203 | case MSG_MGR_BEACON: | |
4204 | paxos_service[PAXOS_MGR]->dispatch(op); | |
4205 | break; | |
4206 | ||
31f18b77 FG |
4207 | // MgrStat |
4208 | case MSG_MON_MGR_REPORT: | |
7c673cae | 4209 | case CEPH_MSG_STATFS: |
7c673cae | 4210 | case MSG_GETPOOLSTATS: |
31f18b77 FG |
4211 | paxos_service[PAXOS_MGRSTAT]->dispatch(op); |
4212 | break; | |
4213 | ||
4214 | // pg | |
4215 | case MSG_PGSTATS: | |
7c673cae FG |
4216 | paxos_service[PAXOS_PGMAP]->dispatch(op); |
4217 | break; | |
4218 | ||
4219 | // log | |
4220 | case MSG_LOG: | |
4221 | paxos_service[PAXOS_LOG]->dispatch(op); | |
4222 | break; | |
4223 | ||
4224 | // handle_command() does its own caps checking | |
4225 | case MSG_MON_COMMAND: | |
4226 | op->set_type_command(); | |
4227 | handle_command(op); | |
4228 | break; | |
4229 | ||
4230 | default: | |
4231 | dealt_with = false; | |
4232 | break; | |
4233 | } | |
4234 | if (dealt_with) | |
4235 | return; | |
4236 | ||
4237 | /* nop, looks like it's not a service message; revert back to monitor */ | |
4238 | op->set_type_monitor(); | |
4239 | ||
4240 | /* messages we, the Monitor class, need to deal with | |
4241 | * but may be sent by clients. */ | |
4242 | ||
4243 | if (!op->get_session()->is_capable("mon", MON_CAP_R)) { | |
4244 | dout(5) << __func__ << " " << op->get_req()->get_source_inst() | |
4245 | << " not enough caps for " << *(op->get_req()) << " -- dropping" | |
4246 | << dendl; | |
4247 | goto drop; | |
4248 | } | |
4249 | ||
4250 | dealt_with = true; | |
4251 | switch (op->get_req()->get_type()) { | |
4252 | ||
4253 | // misc | |
4254 | case CEPH_MSG_MON_GET_VERSION: | |
4255 | handle_get_version(op); | |
4256 | break; | |
4257 | ||
4258 | case CEPH_MSG_MON_SUBSCRIBE: | |
4259 | /* FIXME: check what's being subscribed, filter accordingly */ | |
4260 | handle_subscribe(op); | |
4261 | break; | |
4262 | ||
4263 | default: | |
4264 | dealt_with = false; | |
4265 | break; | |
4266 | } | |
4267 | if (dealt_with) | |
4268 | return; | |
4269 | ||
4270 | if (!op->is_src_mon()) { | |
4271 | dout(1) << __func__ << " unexpected monitor message from" | |
4272 | << " non-monitor entity " << op->get_req()->get_source_inst() | |
4273 | << " " << *(op->get_req()) << " -- dropping" << dendl; | |
4274 | goto drop; | |
4275 | } | |
4276 | ||
4277 | /* messages that should only be sent by another monitor */ | |
4278 | dealt_with = true; | |
4279 | switch (op->get_req()->get_type()) { | |
4280 | ||
4281 | case MSG_ROUTE: | |
4282 | handle_route(op); | |
4283 | break; | |
4284 | ||
4285 | case MSG_MON_PROBE: | |
4286 | handle_probe(op); | |
4287 | break; | |
4288 | ||
4289 | // Sync (i.e., the new slurp, but on steroids) | |
4290 | case MSG_MON_SYNC: | |
4291 | handle_sync(op); | |
4292 | break; | |
4293 | case MSG_MON_SCRUB: | |
4294 | handle_scrub(op); | |
4295 | break; | |
4296 | ||
4297 | /* log acks are sent from a monitor we sent the MLog to, and are | |
4298 | never sent by clients to us. */ | |
4299 | case MSG_LOGACK: | |
4300 | log_client.handle_log_ack((MLogAck*)op->get_req()); | |
4301 | break; | |
4302 | ||
4303 | // monmap | |
4304 | case MSG_MON_JOIN: | |
4305 | op->set_type_service(); | |
4306 | paxos_service[PAXOS_MONMAP]->dispatch(op); | |
4307 | break; | |
4308 | ||
4309 | // paxos | |
4310 | case MSG_MON_PAXOS: | |
4311 | { | |
4312 | op->set_type_paxos(); | |
4313 | MMonPaxos *pm = static_cast<MMonPaxos*>(op->get_req()); | |
4314 | if (!op->get_session()->is_capable("mon", MON_CAP_X)) { | |
4315 | //can't send these! | |
4316 | break; | |
4317 | } | |
4318 | ||
4319 | if (state == STATE_SYNCHRONIZING) { | |
4320 | // we are synchronizing. These messages would do us no | |
4321 | // good, thus just drop them and ignore them. | |
4322 | dout(10) << __func__ << " ignore paxos msg from " | |
4323 | << pm->get_source_inst() << dendl; | |
4324 | break; | |
4325 | } | |
4326 | ||
4327 | // sanitize | |
4328 | if (pm->epoch > get_epoch()) { | |
4329 | bootstrap(); | |
4330 | break; | |
4331 | } | |
4332 | if (pm->epoch != get_epoch()) { | |
4333 | break; | |
4334 | } | |
4335 | ||
4336 | paxos->dispatch(op); | |
4337 | } | |
4338 | break; | |
4339 | ||
4340 | // elector messages | |
4341 | case MSG_MON_ELECTION: | |
4342 | op->set_type_election(); | |
4343 | //check privileges here for simplicity | |
4344 | if (!op->get_session()->is_capable("mon", MON_CAP_X)) { | |
4345 | dout(0) << "MMonElection received from entity without enough caps!" | |
4346 | << op->get_session()->caps << dendl; | |
4347 | break; | |
4348 | } | |
4349 | if (!is_probing() && !is_synchronizing()) { | |
4350 | elector.dispatch(op); | |
4351 | } | |
4352 | break; | |
4353 | ||
4354 | case MSG_FORWARD: | |
4355 | handle_forward(op); | |
4356 | break; | |
4357 | ||
4358 | case MSG_TIMECHECK: | |
4359 | handle_timecheck(op); | |
4360 | break; | |
4361 | ||
4362 | case MSG_MON_HEALTH: | |
4363 | health_monitor->dispatch(op); | |
4364 | break; | |
4365 | ||
224ce89b WB |
4366 | case MSG_MON_HEALTH_CHECKS: |
4367 | op->set_type_service(); | |
4368 | paxos_service[PAXOS_HEALTH]->dispatch(op); | |
4369 | break; | |
4370 | ||
7c673cae FG |
4371 | default: |
4372 | dealt_with = false; | |
4373 | break; | |
4374 | } | |
4375 | if (!dealt_with) { | |
4376 | dout(1) << "dropping unexpected " << *(op->get_req()) << dendl; | |
4377 | goto drop; | |
4378 | } | |
4379 | return; | |
4380 | ||
4381 | drop: | |
4382 | return; | |
4383 | } | |
4384 | ||
4385 | void Monitor::handle_ping(MonOpRequestRef op) | |
4386 | { | |
4387 | MPing *m = static_cast<MPing*>(op->get_req()); | |
4388 | dout(10) << __func__ << " " << *m << dendl; | |
4389 | MPing *reply = new MPing; | |
4390 | entity_inst_t inst = m->get_source_inst(); | |
4391 | bufferlist payload; | |
4392 | boost::scoped_ptr<Formatter> f(new JSONFormatter(true)); | |
4393 | f->open_object_section("pong"); | |
4394 | ||
4395 | list<string> health_str; | |
4396 | get_health(health_str, NULL, f.get()); | |
4397 | { | |
4398 | stringstream ss; | |
4399 | get_mon_status(f.get(), ss); | |
4400 | } | |
4401 | ||
4402 | f->close_section(); | |
4403 | stringstream ss; | |
4404 | f->flush(ss); | |
4405 | ::encode(ss.str(), payload); | |
4406 | reply->set_payload(payload); | |
4407 | dout(10) << __func__ << " reply payload len " << reply->get_payload().length() << dendl; | |
4408 | messenger->send_message(reply, inst); | |
4409 | } | |
4410 | ||
4411 | void Monitor::timecheck_start() | |
4412 | { | |
4413 | dout(10) << __func__ << dendl; | |
4414 | timecheck_cleanup(); | |
4415 | timecheck_start_round(); | |
4416 | } | |
4417 | ||
4418 | void Monitor::timecheck_finish() | |
4419 | { | |
4420 | dout(10) << __func__ << dendl; | |
4421 | timecheck_cleanup(); | |
4422 | } | |
4423 | ||
4424 | void Monitor::timecheck_start_round() | |
4425 | { | |
4426 | dout(10) << __func__ << " curr " << timecheck_round << dendl; | |
4427 | assert(is_leader()); | |
4428 | ||
4429 | if (monmap->size() == 1) { | |
4430 | assert(0 == "We are alone; this shouldn't have been scheduled!"); | |
4431 | return; | |
4432 | } | |
4433 | ||
4434 | if (timecheck_round % 2) { | |
4435 | dout(10) << __func__ << " there's a timecheck going on" << dendl; | |
4436 | utime_t curr_time = ceph_clock_now(); | |
4437 | double max = g_conf->mon_timecheck_interval*3; | |
4438 | if (curr_time - timecheck_round_start < max) { | |
4439 | dout(10) << __func__ << " keep current round going" << dendl; | |
4440 | goto out; | |
4441 | } else { | |
4442 | dout(10) << __func__ | |
4443 | << " finish current timecheck and start new" << dendl; | |
4444 | timecheck_cancel_round(); | |
4445 | } | |
4446 | } | |
4447 | ||
4448 | assert(timecheck_round % 2 == 0); | |
4449 | timecheck_acks = 0; | |
4450 | timecheck_round ++; | |
4451 | timecheck_round_start = ceph_clock_now(); | |
4452 | dout(10) << __func__ << " new " << timecheck_round << dendl; | |
4453 | ||
4454 | timecheck(); | |
4455 | out: | |
4456 | dout(10) << __func__ << " setting up next event" << dendl; | |
4457 | timecheck_reset_event(); | |
4458 | } | |
4459 | ||
4460 | void Monitor::timecheck_finish_round(bool success) | |
4461 | { | |
4462 | dout(10) << __func__ << " curr " << timecheck_round << dendl; | |
4463 | assert(timecheck_round % 2); | |
4464 | timecheck_round ++; | |
4465 | timecheck_round_start = utime_t(); | |
4466 | ||
4467 | if (success) { | |
4468 | assert(timecheck_waiting.empty()); | |
4469 | assert(timecheck_acks == quorum.size()); | |
4470 | timecheck_report(); | |
4471 | timecheck_check_skews(); | |
4472 | return; | |
4473 | } | |
4474 | ||
4475 | dout(10) << __func__ << " " << timecheck_waiting.size() | |
4476 | << " peers still waiting:"; | |
4477 | for (map<entity_inst_t,utime_t>::iterator p = timecheck_waiting.begin(); | |
4478 | p != timecheck_waiting.end(); ++p) { | |
4479 | *_dout << " " << p->first.name; | |
4480 | } | |
4481 | *_dout << dendl; | |
4482 | timecheck_waiting.clear(); | |
4483 | ||
4484 | dout(10) << __func__ << " finished to " << timecheck_round << dendl; | |
4485 | } | |
4486 | ||
4487 | void Monitor::timecheck_cancel_round() | |
4488 | { | |
4489 | timecheck_finish_round(false); | |
4490 | } | |
4491 | ||
4492 | void Monitor::timecheck_cleanup() | |
4493 | { | |
4494 | timecheck_round = 0; | |
4495 | timecheck_acks = 0; | |
4496 | timecheck_round_start = utime_t(); | |
4497 | ||
4498 | if (timecheck_event) { | |
4499 | timer.cancel_event(timecheck_event); | |
4500 | timecheck_event = NULL; | |
4501 | } | |
4502 | timecheck_waiting.clear(); | |
4503 | timecheck_skews.clear(); | |
4504 | timecheck_latencies.clear(); | |
4505 | ||
4506 | timecheck_rounds_since_clean = 0; | |
4507 | } | |
4508 | ||
4509 | void Monitor::timecheck_reset_event() | |
4510 | { | |
4511 | if (timecheck_event) { | |
4512 | timer.cancel_event(timecheck_event); | |
4513 | timecheck_event = NULL; | |
4514 | } | |
4515 | ||
4516 | double delay = | |
4517 | cct->_conf->mon_timecheck_skew_interval * timecheck_rounds_since_clean; | |
4518 | ||
4519 | if (delay <= 0 || delay > cct->_conf->mon_timecheck_interval) { | |
4520 | delay = cct->_conf->mon_timecheck_interval; | |
4521 | } | |
4522 | ||
4523 | dout(10) << __func__ << " delay " << delay | |
4524 | << " rounds_since_clean " << timecheck_rounds_since_clean | |
4525 | << dendl; | |
4526 | ||
4527 | timecheck_event = new C_MonContext(this, [this](int) { | |
4528 | timecheck_start_round(); | |
4529 | }); | |
4530 | timer.add_event_after(delay, timecheck_event); | |
4531 | } | |
4532 | ||
4533 | void Monitor::timecheck_check_skews() | |
4534 | { | |
4535 | dout(10) << __func__ << dendl; | |
4536 | assert(is_leader()); | |
4537 | assert((timecheck_round % 2) == 0); | |
4538 | if (monmap->size() == 1) { | |
4539 | assert(0 == "We are alone; we shouldn't have gotten here!"); | |
4540 | return; | |
4541 | } | |
4542 | assert(timecheck_latencies.size() == timecheck_skews.size()); | |
4543 | ||
4544 | bool found_skew = false; | |
4545 | for (map<entity_inst_t, double>::iterator p = timecheck_skews.begin(); | |
4546 | p != timecheck_skews.end(); ++p) { | |
4547 | ||
4548 | double abs_skew; | |
4549 | if (timecheck_has_skew(p->second, &abs_skew)) { | |
4550 | dout(10) << __func__ | |
4551 | << " " << p->first << " skew " << abs_skew << dendl; | |
4552 | found_skew = true; | |
4553 | } | |
4554 | } | |
4555 | ||
4556 | if (found_skew) { | |
4557 | ++timecheck_rounds_since_clean; | |
4558 | timecheck_reset_event(); | |
4559 | } else if (timecheck_rounds_since_clean > 0) { | |
4560 | dout(1) << __func__ | |
4561 | << " no clock skews found after " << timecheck_rounds_since_clean | |
4562 | << " rounds" << dendl; | |
4563 | // make sure the skews are really gone and not just a transient success | |
4564 | // this will run just once if not in the presence of skews again. | |
4565 | timecheck_rounds_since_clean = 1; | |
4566 | timecheck_reset_event(); | |
4567 | timecheck_rounds_since_clean = 0; | |
4568 | } | |
4569 | ||
4570 | } | |
4571 | ||
4572 | void Monitor::timecheck_report() | |
4573 | { | |
4574 | dout(10) << __func__ << dendl; | |
4575 | assert(is_leader()); | |
4576 | assert((timecheck_round % 2) == 0); | |
4577 | if (monmap->size() == 1) { | |
4578 | assert(0 == "We are alone; we shouldn't have gotten here!"); | |
4579 | return; | |
4580 | } | |
4581 | ||
4582 | assert(timecheck_latencies.size() == timecheck_skews.size()); | |
4583 | bool do_output = true; // only output report once | |
4584 | for (set<int>::iterator q = quorum.begin(); q != quorum.end(); ++q) { | |
4585 | if (monmap->get_name(*q) == name) | |
4586 | continue; | |
4587 | ||
4588 | MTimeCheck *m = new MTimeCheck(MTimeCheck::OP_REPORT); | |
4589 | m->epoch = get_epoch(); | |
4590 | m->round = timecheck_round; | |
4591 | ||
4592 | for (map<entity_inst_t, double>::iterator it = timecheck_skews.begin(); | |
4593 | it != timecheck_skews.end(); ++it) { | |
4594 | double skew = it->second; | |
4595 | double latency = timecheck_latencies[it->first]; | |
4596 | ||
4597 | m->skews[it->first] = skew; | |
4598 | m->latencies[it->first] = latency; | |
4599 | ||
4600 | if (do_output) { | |
4601 | dout(25) << __func__ << " " << it->first | |
4602 | << " latency " << latency | |
4603 | << " skew " << skew << dendl; | |
4604 | } | |
4605 | } | |
4606 | do_output = false; | |
4607 | entity_inst_t inst = monmap->get_inst(*q); | |
4608 | dout(10) << __func__ << " send report to " << inst << dendl; | |
4609 | messenger->send_message(m, inst); | |
4610 | } | |
4611 | } | |
4612 | ||
4613 | void Monitor::timecheck() | |
4614 | { | |
4615 | dout(10) << __func__ << dendl; | |
4616 | assert(is_leader()); | |
4617 | if (monmap->size() == 1) { | |
4618 | assert(0 == "We are alone; we shouldn't have gotten here!"); | |
4619 | return; | |
4620 | } | |
4621 | assert(timecheck_round % 2 != 0); | |
4622 | ||
4623 | timecheck_acks = 1; // we ack ourselves | |
4624 | ||
4625 | dout(10) << __func__ << " start timecheck epoch " << get_epoch() | |
4626 | << " round " << timecheck_round << dendl; | |
4627 | ||
4628 | // we are at the eye of the storm; the point of reference | |
4629 | timecheck_skews[messenger->get_myinst()] = 0.0; | |
4630 | timecheck_latencies[messenger->get_myinst()] = 0.0; | |
4631 | ||
4632 | for (set<int>::iterator it = quorum.begin(); it != quorum.end(); ++it) { | |
4633 | if (monmap->get_name(*it) == name) | |
4634 | continue; | |
4635 | ||
4636 | entity_inst_t inst = monmap->get_inst(*it); | |
4637 | utime_t curr_time = ceph_clock_now(); | |
4638 | timecheck_waiting[inst] = curr_time; | |
4639 | MTimeCheck *m = new MTimeCheck(MTimeCheck::OP_PING); | |
4640 | m->epoch = get_epoch(); | |
4641 | m->round = timecheck_round; | |
4642 | dout(10) << __func__ << " send " << *m << " to " << inst << dendl; | |
4643 | messenger->send_message(m, inst); | |
4644 | } | |
4645 | } | |
4646 | ||
4647 | health_status_t Monitor::timecheck_status(ostringstream &ss, | |
4648 | const double skew_bound, | |
4649 | const double latency) | |
4650 | { | |
4651 | health_status_t status = HEALTH_OK; | |
4652 | assert(latency >= 0); | |
4653 | ||
4654 | double abs_skew; | |
4655 | if (timecheck_has_skew(skew_bound, &abs_skew)) { | |
4656 | status = HEALTH_WARN; | |
4657 | ss << "clock skew " << abs_skew << "s" | |
4658 | << " > max " << g_conf->mon_clock_drift_allowed << "s"; | |
4659 | } | |
4660 | ||
4661 | return status; | |
4662 | } | |
4663 | ||
4664 | void Monitor::handle_timecheck_leader(MonOpRequestRef op) | |
4665 | { | |
4666 | MTimeCheck *m = static_cast<MTimeCheck*>(op->get_req()); | |
4667 | dout(10) << __func__ << " " << *m << dendl; | |
4668 | /* handles PONG's */ | |
4669 | assert(m->op == MTimeCheck::OP_PONG); | |
4670 | ||
4671 | entity_inst_t other = m->get_source_inst(); | |
4672 | if (m->epoch < get_epoch()) { | |
4673 | dout(1) << __func__ << " got old timecheck epoch " << m->epoch | |
4674 | << " from " << other | |
4675 | << " curr " << get_epoch() | |
4676 | << " -- severely lagged? discard" << dendl; | |
4677 | return; | |
4678 | } | |
4679 | assert(m->epoch == get_epoch()); | |
4680 | ||
4681 | if (m->round < timecheck_round) { | |
4682 | dout(1) << __func__ << " got old round " << m->round | |
4683 | << " from " << other | |
4684 | << " curr " << timecheck_round << " -- discard" << dendl; | |
4685 | return; | |
4686 | } | |
4687 | ||
4688 | utime_t curr_time = ceph_clock_now(); | |
4689 | ||
4690 | assert(timecheck_waiting.count(other) > 0); | |
4691 | utime_t timecheck_sent = timecheck_waiting[other]; | |
4692 | timecheck_waiting.erase(other); | |
4693 | if (curr_time < timecheck_sent) { | |
4694 | // our clock was readjusted -- drop everything until it all makes sense. | |
4695 | dout(1) << __func__ << " our clock was readjusted --" | |
4696 | << " bump round and drop current check" | |
4697 | << dendl; | |
4698 | timecheck_cancel_round(); | |
4699 | return; | |
4700 | } | |
4701 | ||
4702 | /* update peer latencies */ | |
4703 | double latency = (double)(curr_time - timecheck_sent); | |
4704 | ||
4705 | if (timecheck_latencies.count(other) == 0) | |
4706 | timecheck_latencies[other] = latency; | |
4707 | else { | |
4708 | double avg_latency = ((timecheck_latencies[other]*0.8)+(latency*0.2)); | |
4709 | timecheck_latencies[other] = avg_latency; | |
4710 | } | |
4711 | ||
4712 | /* | |
4713 | * update skews | |
4714 | * | |
4715 | * some nasty thing goes on if we were to do 'a - b' between two utime_t, | |
4716 | * and 'a' happens to be lower than 'b'; so we use double instead. | |
4717 | * | |
4718 | * latency is always expected to be >= 0. | |
4719 | * | |
4720 | * delta, the difference between theirs timestamp and ours, may either be | |
4721 | * lower or higher than 0; will hardly ever be 0. | |
4722 | * | |
4723 | * The absolute skew is the absolute delta minus the latency, which is | |
4724 | * taken as a whole instead of an rtt given that there is some queueing | |
4725 | * and dispatch times involved and it's hard to assess how long exactly | |
4726 | * it took for the message to travel to the other side and be handled. So | |
4727 | * we call it a bounded skew, the worst case scenario. | |
4728 | * | |
4729 | * Now, to math! | |
4730 | * | |
4731 | * Given that the latency is always positive, we can establish that the | |
4732 | * bounded skew will be: | |
4733 | * | |
4734 | * 1. positive if the absolute delta is higher than the latency and | |
4735 | * delta is positive | |
4736 | * 2. negative if the absolute delta is higher than the latency and | |
4737 | * delta is negative. | |
4738 | * 3. zero if the absolute delta is lower than the latency. | |
4739 | * | |
4740 | * On 3. we make a judgement call and treat the skew as non-existent. | |
4741 | * This is because that, if the absolute delta is lower than the | |
4742 | * latency, then the apparently existing skew is nothing more than a | |
4743 | * side-effect of the high latency at work. | |
4744 | * | |
4745 | * This may not be entirely true though, as a severely skewed clock | |
4746 | * may be masked by an even higher latency, but with high latencies | |
4747 | * we probably have worse issues to deal with than just skewed clocks. | |
4748 | */ | |
4749 | assert(latency >= 0); | |
4750 | ||
4751 | double delta = ((double) m->timestamp) - ((double) curr_time); | |
4752 | double abs_delta = (delta > 0 ? delta : -delta); | |
4753 | double skew_bound = abs_delta - latency; | |
4754 | if (skew_bound < 0) | |
4755 | skew_bound = 0; | |
4756 | else if (delta < 0) | |
4757 | skew_bound = -skew_bound; | |
4758 | ||
4759 | ostringstream ss; | |
4760 | health_status_t status = timecheck_status(ss, skew_bound, latency); | |
4761 | if (status == HEALTH_ERR) | |
4762 | clog->error() << other << " " << ss.str(); | |
4763 | else if (status == HEALTH_WARN) | |
4764 | clog->warn() << other << " " << ss.str(); | |
4765 | ||
4766 | dout(10) << __func__ << " from " << other << " ts " << m->timestamp | |
4767 | << " delta " << delta << " skew_bound " << skew_bound | |
4768 | << " latency " << latency << dendl; | |
4769 | ||
4770 | timecheck_skews[other] = skew_bound; | |
4771 | ||
4772 | timecheck_acks++; | |
4773 | if (timecheck_acks == quorum.size()) { | |
4774 | dout(10) << __func__ << " got pongs from everybody (" | |
4775 | << timecheck_acks << " total)" << dendl; | |
4776 | assert(timecheck_skews.size() == timecheck_acks); | |
4777 | assert(timecheck_waiting.empty()); | |
4778 | // everyone has acked, so bump the round to finish it. | |
4779 | timecheck_finish_round(); | |
4780 | } | |
4781 | } | |
4782 | ||
4783 | void Monitor::handle_timecheck_peon(MonOpRequestRef op) | |
4784 | { | |
4785 | MTimeCheck *m = static_cast<MTimeCheck*>(op->get_req()); | |
4786 | dout(10) << __func__ << " " << *m << dendl; | |
4787 | ||
4788 | assert(is_peon()); | |
4789 | assert(m->op == MTimeCheck::OP_PING || m->op == MTimeCheck::OP_REPORT); | |
4790 | ||
4791 | if (m->epoch != get_epoch()) { | |
4792 | dout(1) << __func__ << " got wrong epoch " | |
4793 | << "(ours " << get_epoch() | |
4794 | << " theirs: " << m->epoch << ") -- discarding" << dendl; | |
4795 | return; | |
4796 | } | |
4797 | ||
4798 | if (m->round < timecheck_round) { | |
4799 | dout(1) << __func__ << " got old round " << m->round | |
4800 | << " current " << timecheck_round | |
4801 | << " (epoch " << get_epoch() << ") -- discarding" << dendl; | |
4802 | return; | |
4803 | } | |
4804 | ||
4805 | timecheck_round = m->round; | |
4806 | ||
4807 | if (m->op == MTimeCheck::OP_REPORT) { | |
4808 | assert((timecheck_round % 2) == 0); | |
4809 | timecheck_latencies.swap(m->latencies); | |
4810 | timecheck_skews.swap(m->skews); | |
4811 | return; | |
4812 | } | |
4813 | ||
4814 | assert((timecheck_round % 2) != 0); | |
4815 | MTimeCheck *reply = new MTimeCheck(MTimeCheck::OP_PONG); | |
4816 | utime_t curr_time = ceph_clock_now(); | |
4817 | reply->timestamp = curr_time; | |
4818 | reply->epoch = m->epoch; | |
4819 | reply->round = m->round; | |
4820 | dout(10) << __func__ << " send " << *m | |
4821 | << " to " << m->get_source_inst() << dendl; | |
4822 | m->get_connection()->send_message(reply); | |
4823 | } | |
4824 | ||
4825 | void Monitor::handle_timecheck(MonOpRequestRef op) | |
4826 | { | |
4827 | MTimeCheck *m = static_cast<MTimeCheck*>(op->get_req()); | |
4828 | dout(10) << __func__ << " " << *m << dendl; | |
4829 | ||
4830 | if (is_leader()) { | |
4831 | if (m->op != MTimeCheck::OP_PONG) { | |
4832 | dout(1) << __func__ << " drop unexpected msg (not pong)" << dendl; | |
4833 | } else { | |
4834 | handle_timecheck_leader(op); | |
4835 | } | |
4836 | } else if (is_peon()) { | |
4837 | if (m->op != MTimeCheck::OP_PING && m->op != MTimeCheck::OP_REPORT) { | |
4838 | dout(1) << __func__ << " drop unexpected msg (not ping or report)" << dendl; | |
4839 | } else { | |
4840 | handle_timecheck_peon(op); | |
4841 | } | |
4842 | } else { | |
4843 | dout(1) << __func__ << " drop unexpected msg" << dendl; | |
4844 | } | |
4845 | } | |
4846 | ||
4847 | void Monitor::handle_subscribe(MonOpRequestRef op) | |
4848 | { | |
4849 | MMonSubscribe *m = static_cast<MMonSubscribe*>(op->get_req()); | |
4850 | dout(10) << "handle_subscribe " << *m << dendl; | |
4851 | ||
4852 | bool reply = false; | |
4853 | ||
4854 | MonSession *s = op->get_session(); | |
4855 | assert(s); | |
4856 | ||
4857 | for (map<string,ceph_mon_subscribe_item>::iterator p = m->what.begin(); | |
4858 | p != m->what.end(); | |
4859 | ++p) { | |
4860 | // if there are any non-onetime subscriptions, we need to reply to start the resubscribe timer | |
4861 | if ((p->second.flags & CEPH_SUBSCRIBE_ONETIME) == 0) | |
4862 | reply = true; | |
4863 | ||
4864 | // remove conflicting subscribes | |
4865 | if (logmon()->sub_name_to_id(p->first) >= 0) { | |
4866 | for (map<string, Subscription*>::iterator it = s->sub_map.begin(); | |
4867 | it != s->sub_map.end(); ) { | |
4868 | if (it->first != p->first && logmon()->sub_name_to_id(it->first) >= 0) { | |
4869 | Mutex::Locker l(session_map_lock); | |
4870 | session_map.remove_sub((it++)->second); | |
4871 | } else { | |
4872 | ++it; | |
4873 | } | |
4874 | } | |
4875 | } | |
4876 | ||
4877 | { | |
4878 | Mutex::Locker l(session_map_lock); | |
4879 | session_map.add_update_sub(s, p->first, p->second.start, | |
4880 | p->second.flags & CEPH_SUBSCRIBE_ONETIME, | |
4881 | m->get_connection()->has_feature(CEPH_FEATURE_INCSUBOSDMAP)); | |
4882 | } | |
4883 | ||
4884 | if (p->first.compare(0, 6, "mdsmap") == 0 || p->first.compare(0, 5, "fsmap") == 0) { | |
4885 | dout(10) << __func__ << ": MDS sub '" << p->first << "'" << dendl; | |
4886 | if ((int)s->is_capable("mds", MON_CAP_R)) { | |
4887 | Subscription *sub = s->sub_map[p->first]; | |
4888 | assert(sub != nullptr); | |
4889 | mdsmon()->check_sub(sub); | |
4890 | } | |
4891 | } else if (p->first == "osdmap") { | |
4892 | if ((int)s->is_capable("osd", MON_CAP_R)) { | |
4893 | if (s->osd_epoch > p->second.start) { | |
4894 | // client needs earlier osdmaps on purpose, so reset the sent epoch | |
4895 | s->osd_epoch = 0; | |
4896 | } | |
4897 | osdmon()->check_osdmap_sub(s->sub_map["osdmap"]); | |
4898 | } | |
4899 | } else if (p->first == "osd_pg_creates") { | |
4900 | if ((int)s->is_capable("osd", MON_CAP_W)) { | |
4901 | if (monmap->get_required_features().contains_all( | |
4902 | ceph::features::mon::FEATURE_LUMINOUS)) { | |
4903 | osdmon()->check_pg_creates_sub(s->sub_map["osd_pg_creates"]); | |
4904 | } else { | |
4905 | pgmon()->check_sub(s->sub_map["osd_pg_creates"]); | |
4906 | } | |
4907 | } | |
4908 | } else if (p->first == "monmap") { | |
4909 | monmon()->check_sub(s->sub_map[p->first]); | |
4910 | } else if (logmon()->sub_name_to_id(p->first) >= 0) { | |
4911 | logmon()->check_sub(s->sub_map[p->first]); | |
4912 | } else if (p->first == "mgrmap" || p->first == "mgrdigest") { | |
4913 | mgrmon()->check_sub(s->sub_map[p->first]); | |
224ce89b WB |
4914 | } else if (p->first == "servicemap") { |
4915 | mgrstatmon()->check_sub(s->sub_map[p->first]); | |
7c673cae FG |
4916 | } |
4917 | } | |
4918 | ||
4919 | if (reply) { | |
4920 | // we only need to reply if the client is old enough to think it | |
4921 | // has to send renewals. | |
4922 | ConnectionRef con = m->get_connection(); | |
4923 | if (!con->has_feature(CEPH_FEATURE_MON_STATEFUL_SUB)) | |
4924 | m->get_connection()->send_message(new MMonSubscribeAck( | |
4925 | monmap->get_fsid(), (int)g_conf->mon_subscribe_interval)); | |
4926 | } | |
4927 | ||
4928 | } | |
4929 | ||
4930 | void Monitor::handle_get_version(MonOpRequestRef op) | |
4931 | { | |
4932 | MMonGetVersion *m = static_cast<MMonGetVersion*>(op->get_req()); | |
4933 | dout(10) << "handle_get_version " << *m << dendl; | |
4934 | PaxosService *svc = NULL; | |
4935 | ||
4936 | MonSession *s = op->get_session(); | |
4937 | assert(s); | |
4938 | ||
4939 | if (!is_leader() && !is_peon()) { | |
4940 | dout(10) << " waiting for quorum" << dendl; | |
4941 | waitfor_quorum.push_back(new C_RetryMessage(this, op)); | |
4942 | goto out; | |
4943 | } | |
4944 | ||
4945 | if (m->what == "mdsmap") { | |
4946 | svc = mdsmon(); | |
4947 | } else if (m->what == "fsmap") { | |
4948 | svc = mdsmon(); | |
4949 | } else if (m->what == "osdmap") { | |
4950 | svc = osdmon(); | |
4951 | } else if (m->what == "monmap") { | |
4952 | svc = monmon(); | |
4953 | } else { | |
4954 | derr << "invalid map type " << m->what << dendl; | |
4955 | } | |
4956 | ||
4957 | if (svc) { | |
4958 | if (!svc->is_readable()) { | |
4959 | svc->wait_for_readable(op, new C_RetryMessage(this, op)); | |
4960 | goto out; | |
4961 | } | |
4962 | ||
4963 | MMonGetVersionReply *reply = new MMonGetVersionReply(); | |
4964 | reply->handle = m->handle; | |
4965 | reply->version = svc->get_last_committed(); | |
4966 | reply->oldest_version = svc->get_first_committed(); | |
4967 | reply->set_tid(m->get_tid()); | |
4968 | ||
4969 | m->get_connection()->send_message(reply); | |
4970 | } | |
4971 | out: | |
4972 | return; | |
4973 | } | |
4974 | ||
4975 | bool Monitor::ms_handle_reset(Connection *con) | |
4976 | { | |
4977 | dout(10) << "ms_handle_reset " << con << " " << con->get_peer_addr() << dendl; | |
4978 | ||
4979 | // ignore lossless monitor sessions | |
4980 | if (con->get_peer_type() == CEPH_ENTITY_TYPE_MON) | |
4981 | return false; | |
4982 | ||
4983 | MonSession *s = static_cast<MonSession *>(con->get_priv()); | |
4984 | if (!s) | |
4985 | return false; | |
4986 | ||
4987 | // break any con <-> session ref cycle | |
4988 | s->con->set_priv(NULL); | |
4989 | ||
4990 | if (is_shutdown()) | |
4991 | return false; | |
4992 | ||
4993 | Mutex::Locker l(lock); | |
4994 | ||
4995 | dout(10) << "reset/close on session " << s->inst << dendl; | |
4996 | if (!s->closed) { | |
4997 | Mutex::Locker l(session_map_lock); | |
4998 | remove_session(s); | |
4999 | } | |
5000 | s->put(); | |
5001 | return true; | |
5002 | } | |
5003 | ||
5004 | bool Monitor::ms_handle_refused(Connection *con) | |
5005 | { | |
5006 | // just log for now... | |
5007 | dout(10) << "ms_handle_refused " << con << " " << con->get_peer_addr() << dendl; | |
5008 | return false; | |
5009 | } | |
5010 | ||
5011 | // ----- | |
5012 | ||
5013 | void Monitor::send_latest_monmap(Connection *con) | |
5014 | { | |
5015 | bufferlist bl; | |
5016 | monmap->encode(bl, con->get_features()); | |
5017 | con->send_message(new MMonMap(bl)); | |
5018 | } | |
5019 | ||
5020 | void Monitor::handle_mon_get_map(MonOpRequestRef op) | |
5021 | { | |
5022 | MMonGetMap *m = static_cast<MMonGetMap*>(op->get_req()); | |
5023 | dout(10) << "handle_mon_get_map" << dendl; | |
5024 | send_latest_monmap(m->get_connection().get()); | |
5025 | } | |
5026 | ||
5027 | void Monitor::handle_mon_metadata(MonOpRequestRef op) | |
5028 | { | |
5029 | MMonMetadata *m = static_cast<MMonMetadata*>(op->get_req()); | |
5030 | if (is_leader()) { | |
5031 | dout(10) << __func__ << dendl; | |
5032 | update_mon_metadata(m->get_source().num(), std::move(m->data)); | |
5033 | } | |
5034 | } | |
5035 | ||
5036 | void Monitor::update_mon_metadata(int from, Metadata&& m) | |
5037 | { | |
224ce89b WB |
5038 | // NOTE: this is now for legacy (kraken or jewel) mons only. |
5039 | pending_metadata[from] = std::move(m); | |
7c673cae FG |
5040 | |
5041 | MonitorDBStore::TransactionRef t = paxos->get_pending_transaction(); | |
224ce89b | 5042 | bufferlist bl; |
7c673cae FG |
5043 | ::encode(pending_metadata, bl); |
5044 | t->put(MONITOR_STORE_PREFIX, "last_metadata", bl); | |
5045 | paxos->trigger_propose(); | |
5046 | } | |
5047 | ||
224ce89b | 5048 | int Monitor::load_metadata() |
7c673cae FG |
5049 | { |
5050 | bufferlist bl; | |
5051 | int r = store->get(MONITOR_STORE_PREFIX, "last_metadata", bl); | |
5052 | if (r) | |
5053 | return r; | |
5054 | bufferlist::iterator it = bl.begin(); | |
224ce89b WB |
5055 | ::decode(mon_metadata, it); |
5056 | ||
5057 | pending_metadata = mon_metadata; | |
7c673cae FG |
5058 | return 0; |
5059 | } | |
5060 | ||
5061 | int Monitor::get_mon_metadata(int mon, Formatter *f, ostream& err) | |
5062 | { | |
5063 | assert(f); | |
224ce89b | 5064 | if (!mon_metadata.count(mon)) { |
7c673cae FG |
5065 | err << "mon." << mon << " not found"; |
5066 | return -EINVAL; | |
5067 | } | |
224ce89b | 5068 | const Metadata& m = mon_metadata[mon]; |
7c673cae FG |
5069 | for (Metadata::const_iterator p = m.begin(); p != m.end(); ++p) { |
5070 | f->dump_string(p->first.c_str(), p->second); | |
5071 | } | |
5072 | return 0; | |
5073 | } | |
5074 | ||
c07f9fc5 | 5075 | void Monitor::count_metadata(const string& field, map<string,int> *out) |
31f18b77 | 5076 | { |
224ce89b | 5077 | for (auto& p : mon_metadata) { |
31f18b77 FG |
5078 | auto q = p.second.find(field); |
5079 | if (q == p.second.end()) { | |
c07f9fc5 | 5080 | (*out)["unknown"]++; |
31f18b77 | 5081 | } else { |
c07f9fc5 | 5082 | (*out)[q->second]++; |
31f18b77 FG |
5083 | } |
5084 | } | |
c07f9fc5 FG |
5085 | } |
5086 | ||
5087 | void Monitor::count_metadata(const string& field, Formatter *f) | |
5088 | { | |
5089 | map<string,int> by_val; | |
5090 | count_metadata(field, &by_val); | |
31f18b77 FG |
5091 | f->open_object_section(field.c_str()); |
5092 | for (auto& p : by_val) { | |
5093 | f->dump_int(p.first.c_str(), p.second); | |
5094 | } | |
5095 | f->close_section(); | |
5096 | } | |
5097 | ||
7c673cae FG |
5098 | int Monitor::print_nodes(Formatter *f, ostream& err) |
5099 | { | |
7c673cae | 5100 | map<string, list<int> > mons; // hostname => mon |
224ce89b WB |
5101 | for (map<int, Metadata>::iterator it = mon_metadata.begin(); |
5102 | it != mon_metadata.end(); ++it) { | |
7c673cae FG |
5103 | const Metadata& m = it->second; |
5104 | Metadata::const_iterator hostname = m.find("hostname"); | |
5105 | if (hostname == m.end()) { | |
5106 | // not likely though | |
5107 | continue; | |
5108 | } | |
5109 | mons[hostname->second].push_back(it->first); | |
5110 | } | |
5111 | ||
5112 | dump_services(f, mons, "mon"); | |
5113 | return 0; | |
5114 | } | |
5115 | ||
5116 | // ---------------------------------------------- | |
5117 | // scrub | |
5118 | ||
5119 | int Monitor::scrub_start() | |
5120 | { | |
5121 | dout(10) << __func__ << dendl; | |
5122 | assert(is_leader()); | |
5123 | ||
5124 | if (!scrub_result.empty()) { | |
5125 | clog->info() << "scrub already in progress"; | |
5126 | return -EBUSY; | |
5127 | } | |
5128 | ||
5129 | scrub_event_cancel(); | |
5130 | scrub_result.clear(); | |
5131 | scrub_state.reset(new ScrubState); | |
5132 | ||
5133 | scrub(); | |
5134 | return 0; | |
5135 | } | |
5136 | ||
5137 | int Monitor::scrub() | |
5138 | { | |
5139 | assert(is_leader()); | |
5140 | assert(scrub_state); | |
5141 | ||
5142 | scrub_cancel_timeout(); | |
5143 | wait_for_paxos_write(); | |
5144 | scrub_version = paxos->get_version(); | |
5145 | ||
5146 | ||
5147 | // scrub all keys if we're the only monitor in the quorum | |
5148 | int32_t num_keys = | |
5149 | (quorum.size() == 1 ? -1 : cct->_conf->mon_scrub_max_keys); | |
5150 | ||
5151 | for (set<int>::iterator p = quorum.begin(); | |
5152 | p != quorum.end(); | |
5153 | ++p) { | |
5154 | if (*p == rank) | |
5155 | continue; | |
5156 | MMonScrub *r = new MMonScrub(MMonScrub::OP_SCRUB, scrub_version, | |
5157 | num_keys); | |
5158 | r->key = scrub_state->last_key; | |
5159 | messenger->send_message(r, monmap->get_inst(*p)); | |
5160 | } | |
5161 | ||
5162 | // scrub my keys | |
5163 | bool r = _scrub(&scrub_result[rank], | |
5164 | &scrub_state->last_key, | |
5165 | &num_keys); | |
5166 | ||
5167 | scrub_state->finished = !r; | |
5168 | ||
5169 | // only after we got our scrub results do we really care whether the | |
5170 | // other monitors are late on their results. Also, this way we avoid | |
5171 | // triggering the timeout if we end up getting stuck in _scrub() for | |
5172 | // longer than the duration of the timeout. | |
5173 | scrub_reset_timeout(); | |
5174 | ||
5175 | if (quorum.size() == 1) { | |
5176 | assert(scrub_state->finished == true); | |
5177 | scrub_finish(); | |
5178 | } | |
5179 | return 0; | |
5180 | } | |
5181 | ||
5182 | void Monitor::handle_scrub(MonOpRequestRef op) | |
5183 | { | |
5184 | MMonScrub *m = static_cast<MMonScrub*>(op->get_req()); | |
5185 | dout(10) << __func__ << " " << *m << dendl; | |
5186 | switch (m->op) { | |
5187 | case MMonScrub::OP_SCRUB: | |
5188 | { | |
5189 | if (!is_peon()) | |
5190 | break; | |
5191 | ||
5192 | wait_for_paxos_write(); | |
5193 | ||
5194 | if (m->version != paxos->get_version()) | |
5195 | break; | |
5196 | ||
5197 | MMonScrub *reply = new MMonScrub(MMonScrub::OP_RESULT, | |
5198 | m->version, | |
5199 | m->num_keys); | |
5200 | ||
5201 | reply->key = m->key; | |
5202 | _scrub(&reply->result, &reply->key, &reply->num_keys); | |
5203 | m->get_connection()->send_message(reply); | |
5204 | } | |
5205 | break; | |
5206 | ||
5207 | case MMonScrub::OP_RESULT: | |
5208 | { | |
5209 | if (!is_leader()) | |
5210 | break; | |
5211 | if (m->version != scrub_version) | |
5212 | break; | |
5213 | // reset the timeout each time we get a result | |
5214 | scrub_reset_timeout(); | |
5215 | ||
5216 | int from = m->get_source().num(); | |
5217 | assert(scrub_result.count(from) == 0); | |
5218 | scrub_result[from] = m->result; | |
5219 | ||
5220 | if (scrub_result.size() == quorum.size()) { | |
5221 | scrub_check_results(); | |
5222 | scrub_result.clear(); | |
5223 | if (scrub_state->finished) | |
5224 | scrub_finish(); | |
5225 | else | |
5226 | scrub(); | |
5227 | } | |
5228 | } | |
5229 | break; | |
5230 | } | |
5231 | } | |
5232 | ||
5233 | bool Monitor::_scrub(ScrubResult *r, | |
5234 | pair<string,string> *start, | |
5235 | int *num_keys) | |
5236 | { | |
5237 | assert(r != NULL); | |
5238 | assert(start != NULL); | |
5239 | assert(num_keys != NULL); | |
5240 | ||
5241 | set<string> prefixes = get_sync_targets_names(); | |
5242 | prefixes.erase("paxos"); // exclude paxos, as this one may have extra states for proposals, etc. | |
5243 | ||
5244 | dout(10) << __func__ << " start (" << *start << ")" | |
5245 | << " num_keys " << *num_keys << dendl; | |
5246 | ||
5247 | MonitorDBStore::Synchronizer it = store->get_synchronizer(*start, prefixes); | |
5248 | ||
5249 | int scrubbed_keys = 0; | |
5250 | pair<string,string> last_key; | |
5251 | ||
5252 | while (it->has_next_chunk()) { | |
5253 | ||
5254 | if (*num_keys > 0 && scrubbed_keys == *num_keys) | |
5255 | break; | |
5256 | ||
5257 | pair<string,string> k = it->get_next_key(); | |
5258 | if (prefixes.count(k.first) == 0) | |
5259 | continue; | |
5260 | ||
5261 | if (cct->_conf->mon_scrub_inject_missing_keys > 0.0 && | |
5262 | (rand() % 10000 < cct->_conf->mon_scrub_inject_missing_keys*10000.0)) { | |
5263 | dout(10) << __func__ << " inject missing key, skipping (" << k << ")" | |
5264 | << dendl; | |
5265 | continue; | |
5266 | } | |
5267 | ||
5268 | bufferlist bl; | |
224ce89b WB |
5269 | int err = store->get(k.first, k.second, bl); |
5270 | assert(err == 0); | |
5271 | ||
7c673cae FG |
5272 | uint32_t key_crc = bl.crc32c(0); |
5273 | dout(30) << __func__ << " " << k << " bl " << bl.length() << " bytes" | |
5274 | << " crc " << key_crc << dendl; | |
5275 | r->prefix_keys[k.first]++; | |
224ce89b | 5276 | if (r->prefix_crc.count(k.first) == 0) { |
7c673cae | 5277 | r->prefix_crc[k.first] = 0; |
224ce89b | 5278 | } |
7c673cae FG |
5279 | r->prefix_crc[k.first] = bl.crc32c(r->prefix_crc[k.first]); |
5280 | ||
5281 | if (cct->_conf->mon_scrub_inject_crc_mismatch > 0.0 && | |
5282 | (rand() % 10000 < cct->_conf->mon_scrub_inject_crc_mismatch*10000.0)) { | |
5283 | dout(10) << __func__ << " inject failure at (" << k << ")" << dendl; | |
5284 | r->prefix_crc[k.first] += 1; | |
5285 | } | |
5286 | ||
5287 | ++scrubbed_keys; | |
5288 | last_key = k; | |
5289 | } | |
5290 | ||
5291 | dout(20) << __func__ << " last_key (" << last_key << ")" | |
5292 | << " scrubbed_keys " << scrubbed_keys | |
5293 | << " has_next " << it->has_next_chunk() << dendl; | |
5294 | ||
5295 | *start = last_key; | |
5296 | *num_keys = scrubbed_keys; | |
5297 | ||
5298 | return it->has_next_chunk(); | |
5299 | } | |
5300 | ||
5301 | void Monitor::scrub_check_results() | |
5302 | { | |
5303 | dout(10) << __func__ << dendl; | |
5304 | ||
5305 | // compare | |
5306 | int errors = 0; | |
5307 | ScrubResult& mine = scrub_result[rank]; | |
5308 | for (map<int,ScrubResult>::iterator p = scrub_result.begin(); | |
5309 | p != scrub_result.end(); | |
5310 | ++p) { | |
5311 | if (p->first == rank) | |
5312 | continue; | |
5313 | if (p->second != mine) { | |
5314 | ++errors; | |
5315 | clog->error() << "scrub mismatch"; | |
5316 | clog->error() << " mon." << rank << " " << mine; | |
5317 | clog->error() << " mon." << p->first << " " << p->second; | |
5318 | } | |
5319 | } | |
5320 | if (!errors) | |
d2e6a577 | 5321 | clog->debug() << "scrub ok on " << quorum << ": " << mine; |
7c673cae FG |
5322 | } |
5323 | ||
5324 | inline void Monitor::scrub_timeout() | |
5325 | { | |
5326 | dout(1) << __func__ << " restarting scrub" << dendl; | |
5327 | scrub_reset(); | |
5328 | scrub_start(); | |
5329 | } | |
5330 | ||
5331 | void Monitor::scrub_finish() | |
5332 | { | |
5333 | dout(10) << __func__ << dendl; | |
5334 | scrub_reset(); | |
5335 | scrub_event_start(); | |
5336 | } | |
5337 | ||
5338 | void Monitor::scrub_reset() | |
5339 | { | |
5340 | dout(10) << __func__ << dendl; | |
5341 | scrub_cancel_timeout(); | |
5342 | scrub_version = 0; | |
5343 | scrub_result.clear(); | |
5344 | scrub_state.reset(); | |
5345 | } | |
5346 | ||
5347 | inline void Monitor::scrub_update_interval(int secs) | |
5348 | { | |
5349 | // we don't care about changes if we are not the leader. | |
5350 | // changes will be visible if we become the leader. | |
5351 | if (!is_leader()) | |
5352 | return; | |
5353 | ||
5354 | dout(1) << __func__ << " new interval = " << secs << dendl; | |
5355 | ||
5356 | // if scrub already in progress, all changes will already be visible during | |
5357 | // the next round. Nothing to do. | |
5358 | if (scrub_state != NULL) | |
5359 | return; | |
5360 | ||
5361 | scrub_event_cancel(); | |
5362 | scrub_event_start(); | |
5363 | } | |
5364 | ||
5365 | void Monitor::scrub_event_start() | |
5366 | { | |
5367 | dout(10) << __func__ << dendl; | |
5368 | ||
5369 | if (scrub_event) | |
5370 | scrub_event_cancel(); | |
5371 | ||
5372 | if (cct->_conf->mon_scrub_interval <= 0) { | |
5373 | dout(1) << __func__ << " scrub event is disabled" | |
5374 | << " (mon_scrub_interval = " << cct->_conf->mon_scrub_interval | |
5375 | << ")" << dendl; | |
5376 | return; | |
5377 | } | |
5378 | ||
5379 | scrub_event = new C_MonContext(this, [this](int) { | |
5380 | scrub_start(); | |
5381 | }); | |
5382 | timer.add_event_after(cct->_conf->mon_scrub_interval, scrub_event); | |
5383 | } | |
5384 | ||
5385 | void Monitor::scrub_event_cancel() | |
5386 | { | |
5387 | dout(10) << __func__ << dendl; | |
5388 | if (scrub_event) { | |
5389 | timer.cancel_event(scrub_event); | |
5390 | scrub_event = NULL; | |
5391 | } | |
5392 | } | |
5393 | ||
5394 | inline void Monitor::scrub_cancel_timeout() | |
5395 | { | |
5396 | if (scrub_timeout_event) { | |
5397 | timer.cancel_event(scrub_timeout_event); | |
5398 | scrub_timeout_event = NULL; | |
5399 | } | |
5400 | } | |
5401 | ||
5402 | void Monitor::scrub_reset_timeout() | |
5403 | { | |
5404 | dout(15) << __func__ << " reset timeout event" << dendl; | |
5405 | scrub_cancel_timeout(); | |
5406 | ||
5407 | scrub_timeout_event = new C_MonContext(this, [this](int) { | |
5408 | scrub_timeout(); | |
5409 | }); | |
5410 | timer.add_event_after(g_conf->mon_scrub_timeout, scrub_timeout_event); | |
5411 | } | |
5412 | ||
5413 | /************ TICK ***************/ | |
5414 | void Monitor::new_tick() | |
5415 | { | |
5416 | timer.add_event_after(g_conf->mon_tick_interval, new C_MonContext(this, [this](int) { | |
5417 | tick(); | |
5418 | })); | |
5419 | } | |
5420 | ||
5421 | void Monitor::tick() | |
5422 | { | |
5423 | // ok go. | |
5424 | dout(11) << "tick" << dendl; | |
5425 | ||
5426 | for (vector<PaxosService*>::iterator p = paxos_service.begin(); p != paxos_service.end(); ++p) { | |
5427 | (*p)->tick(); | |
5428 | (*p)->maybe_trim(); | |
5429 | } | |
5430 | ||
5431 | // trim sessions | |
5432 | utime_t now = ceph_clock_now(); | |
5433 | { | |
5434 | Mutex::Locker l(session_map_lock); | |
5435 | auto p = session_map.sessions.begin(); | |
5436 | ||
5437 | bool out_for_too_long = (!exited_quorum.is_zero() && | |
5438 | now > (exited_quorum + 2*g_conf->mon_lease)); | |
5439 | ||
5440 | while (!p.end()) { | |
5441 | MonSession *s = *p; | |
5442 | ++p; | |
5443 | ||
5444 | // don't trim monitors | |
5445 | if (s->inst.name.is_mon()) | |
5446 | continue; | |
5447 | ||
5448 | if (s->session_timeout < now && s->con) { | |
5449 | // check keepalive, too | |
5450 | s->session_timeout = s->con->get_last_keepalive(); | |
5451 | s->session_timeout += g_conf->mon_session_timeout; | |
5452 | } | |
5453 | if (s->session_timeout < now) { | |
5454 | dout(10) << " trimming session " << s->con << " " << s->inst | |
5455 | << " (timeout " << s->session_timeout | |
5456 | << " < now " << now << ")" << dendl; | |
5457 | } else if (out_for_too_long) { | |
5458 | // boot the client Session because we've taken too long getting back in | |
5459 | dout(10) << " trimming session " << s->con << " " << s->inst | |
5460 | << " because we've been out of quorum too long" << dendl; | |
5461 | } else { | |
5462 | continue; | |
5463 | } | |
5464 | ||
5465 | s->con->mark_down(); | |
5466 | remove_session(s); | |
5467 | logger->inc(l_mon_session_trim); | |
5468 | } | |
5469 | } | |
5470 | sync_trim_providers(); | |
5471 | ||
5472 | if (!maybe_wait_for_quorum.empty()) { | |
5473 | finish_contexts(g_ceph_context, maybe_wait_for_quorum); | |
5474 | } | |
5475 | ||
5476 | if (is_leader() && paxos->is_active() && fingerprint.is_zero()) { | |
5477 | // this is only necessary on upgraded clusters. | |
5478 | MonitorDBStore::TransactionRef t = paxos->get_pending_transaction(); | |
5479 | prepare_new_fingerprint(t); | |
5480 | paxos->trigger_propose(); | |
5481 | } | |
5482 | ||
5483 | new_tick(); | |
5484 | } | |
5485 | ||
5486 | void Monitor::prepare_new_fingerprint(MonitorDBStore::TransactionRef t) | |
5487 | { | |
5488 | uuid_d nf; | |
5489 | nf.generate_random(); | |
5490 | dout(10) << __func__ << " proposing cluster_fingerprint " << nf << dendl; | |
5491 | ||
5492 | bufferlist bl; | |
5493 | ::encode(nf, bl); | |
5494 | t->put(MONITOR_NAME, "cluster_fingerprint", bl); | |
5495 | } | |
5496 | ||
5497 | int Monitor::check_fsid() | |
5498 | { | |
5499 | bufferlist ebl; | |
5500 | int r = store->get(MONITOR_NAME, "cluster_uuid", ebl); | |
5501 | if (r == -ENOENT) | |
5502 | return r; | |
5503 | assert(r == 0); | |
5504 | ||
5505 | string es(ebl.c_str(), ebl.length()); | |
5506 | ||
5507 | // only keep the first line | |
5508 | size_t pos = es.find_first_of('\n'); | |
5509 | if (pos != string::npos) | |
5510 | es.resize(pos); | |
5511 | ||
5512 | dout(10) << "check_fsid cluster_uuid contains '" << es << "'" << dendl; | |
5513 | uuid_d ondisk; | |
5514 | if (!ondisk.parse(es.c_str())) { | |
5515 | derr << "error: unable to parse uuid" << dendl; | |
5516 | return -EINVAL; | |
5517 | } | |
5518 | ||
5519 | if (monmap->get_fsid() != ondisk) { | |
5520 | derr << "error: cluster_uuid file exists with value " << ondisk | |
5521 | << ", != our uuid " << monmap->get_fsid() << dendl; | |
5522 | return -EEXIST; | |
5523 | } | |
5524 | ||
5525 | return 0; | |
5526 | } | |
5527 | ||
5528 | int Monitor::write_fsid() | |
5529 | { | |
5530 | auto t(std::make_shared<MonitorDBStore::Transaction>()); | |
5531 | write_fsid(t); | |
5532 | int r = store->apply_transaction(t); | |
5533 | return r; | |
5534 | } | |
5535 | ||
5536 | int Monitor::write_fsid(MonitorDBStore::TransactionRef t) | |
5537 | { | |
5538 | ostringstream ss; | |
5539 | ss << monmap->get_fsid() << "\n"; | |
5540 | string us = ss.str(); | |
5541 | ||
5542 | bufferlist b; | |
5543 | b.append(us); | |
5544 | ||
5545 | t->put(MONITOR_NAME, "cluster_uuid", b); | |
5546 | return 0; | |
5547 | } | |
5548 | ||
5549 | /* | |
5550 | * this is the closest thing to a traditional 'mkfs' for ceph. | |
5551 | * initialize the monitor state machines to their initial values. | |
5552 | */ | |
5553 | int Monitor::mkfs(bufferlist& osdmapbl) | |
5554 | { | |
5555 | auto t(std::make_shared<MonitorDBStore::Transaction>()); | |
5556 | ||
5557 | // verify cluster fsid | |
5558 | int r = check_fsid(); | |
5559 | if (r < 0 && r != -ENOENT) | |
5560 | return r; | |
5561 | ||
5562 | bufferlist magicbl; | |
5563 | magicbl.append(CEPH_MON_ONDISK_MAGIC); | |
5564 | magicbl.append("\n"); | |
5565 | t->put(MONITOR_NAME, "magic", magicbl); | |
5566 | ||
5567 | ||
5568 | features = get_initial_supported_features(); | |
5569 | write_features(t); | |
5570 | ||
5571 | // save monmap, osdmap, keyring. | |
5572 | bufferlist monmapbl; | |
5573 | monmap->encode(monmapbl, CEPH_FEATURES_ALL); | |
5574 | monmap->set_epoch(0); // must be 0 to avoid confusing first MonmapMonitor::update_from_paxos() | |
5575 | t->put("mkfs", "monmap", monmapbl); | |
5576 | ||
5577 | if (osdmapbl.length()) { | |
5578 | // make sure it's a valid osdmap | |
5579 | try { | |
5580 | OSDMap om; | |
5581 | om.decode(osdmapbl); | |
5582 | } | |
5583 | catch (buffer::error& e) { | |
5584 | derr << "error decoding provided osdmap: " << e.what() << dendl; | |
5585 | return -EINVAL; | |
5586 | } | |
5587 | t->put("mkfs", "osdmap", osdmapbl); | |
5588 | } | |
5589 | ||
5590 | if (is_keyring_required()) { | |
5591 | KeyRing keyring; | |
5592 | string keyring_filename; | |
5593 | ||
5594 | r = ceph_resolve_file_search(g_conf->keyring, keyring_filename); | |
5595 | if (r) { | |
5596 | derr << "unable to find a keyring file on " << g_conf->keyring | |
5597 | << ": " << cpp_strerror(r) << dendl; | |
5598 | if (g_conf->key != "") { | |
5599 | string keyring_plaintext = "[mon.]\n\tkey = " + g_conf->key + | |
5600 | "\n\tcaps mon = \"allow *\"\n"; | |
5601 | bufferlist bl; | |
5602 | bl.append(keyring_plaintext); | |
5603 | try { | |
5604 | bufferlist::iterator i = bl.begin(); | |
5605 | keyring.decode_plaintext(i); | |
5606 | } | |
5607 | catch (const buffer::error& e) { | |
5608 | derr << "error decoding keyring " << keyring_plaintext | |
5609 | << ": " << e.what() << dendl; | |
5610 | return -EINVAL; | |
5611 | } | |
5612 | } else { | |
5613 | return -ENOENT; | |
5614 | } | |
5615 | } else { | |
5616 | r = keyring.load(g_ceph_context, keyring_filename); | |
5617 | if (r < 0) { | |
5618 | derr << "unable to load initial keyring " << g_conf->keyring << dendl; | |
5619 | return r; | |
5620 | } | |
5621 | } | |
5622 | ||
5623 | // put mon. key in external keyring; seed with everything else. | |
5624 | extract_save_mon_key(keyring); | |
5625 | ||
5626 | bufferlist keyringbl; | |
5627 | keyring.encode_plaintext(keyringbl); | |
5628 | t->put("mkfs", "keyring", keyringbl); | |
5629 | } | |
5630 | write_fsid(t); | |
5631 | store->apply_transaction(t); | |
5632 | ||
5633 | return 0; | |
5634 | } | |
5635 | ||
5636 | int Monitor::write_default_keyring(bufferlist& bl) | |
5637 | { | |
5638 | ostringstream os; | |
5639 | os << g_conf->mon_data << "/keyring"; | |
5640 | ||
5641 | int err = 0; | |
5642 | int fd = ::open(os.str().c_str(), O_WRONLY|O_CREAT, 0600); | |
5643 | if (fd < 0) { | |
5644 | err = -errno; | |
5645 | dout(0) << __func__ << " failed to open " << os.str() | |
5646 | << ": " << cpp_strerror(err) << dendl; | |
5647 | return err; | |
5648 | } | |
5649 | ||
5650 | err = bl.write_fd(fd); | |
5651 | if (!err) | |
5652 | ::fsync(fd); | |
5653 | VOID_TEMP_FAILURE_RETRY(::close(fd)); | |
5654 | ||
5655 | return err; | |
5656 | } | |
5657 | ||
5658 | void Monitor::extract_save_mon_key(KeyRing& keyring) | |
5659 | { | |
5660 | EntityName mon_name; | |
5661 | mon_name.set_type(CEPH_ENTITY_TYPE_MON); | |
5662 | EntityAuth mon_key; | |
5663 | if (keyring.get_auth(mon_name, mon_key)) { | |
5664 | dout(10) << "extract_save_mon_key moving mon. key to separate keyring" << dendl; | |
5665 | KeyRing pkey; | |
5666 | pkey.add(mon_name, mon_key); | |
5667 | bufferlist bl; | |
5668 | pkey.encode_plaintext(bl); | |
5669 | write_default_keyring(bl); | |
5670 | keyring.remove(mon_name); | |
5671 | } | |
5672 | } | |
5673 | ||
5674 | bool Monitor::ms_get_authorizer(int service_id, AuthAuthorizer **authorizer, | |
5675 | bool force_new) | |
5676 | { | |
5677 | dout(10) << "ms_get_authorizer for " << ceph_entity_type_name(service_id) | |
5678 | << dendl; | |
5679 | ||
5680 | if (is_shutdown()) | |
5681 | return false; | |
5682 | ||
5683 | // we only connect to other monitors and mgr; every else connects to us. | |
5684 | if (service_id != CEPH_ENTITY_TYPE_MON && | |
5685 | service_id != CEPH_ENTITY_TYPE_MGR) | |
5686 | return false; | |
5687 | ||
5688 | if (!auth_cluster_required.is_supported_auth(CEPH_AUTH_CEPHX)) { | |
5689 | // auth_none | |
5690 | dout(20) << __func__ << " building auth_none authorizer" << dendl; | |
5691 | AuthNoneClientHandler handler(g_ceph_context, nullptr); | |
5692 | handler.set_global_id(0); | |
5693 | *authorizer = handler.build_authorizer(service_id); | |
5694 | return true; | |
5695 | } | |
5696 | ||
5697 | CephXServiceTicketInfo auth_ticket_info; | |
5698 | CephXSessionAuthInfo info; | |
5699 | int ret; | |
5700 | ||
5701 | EntityName name; | |
5702 | name.set_type(CEPH_ENTITY_TYPE_MON); | |
5703 | auth_ticket_info.ticket.name = name; | |
5704 | auth_ticket_info.ticket.global_id = 0; | |
5705 | ||
5706 | if (service_id == CEPH_ENTITY_TYPE_MON) { | |
5707 | // mon to mon authentication uses the private monitor shared key and not the | |
5708 | // rotating key | |
5709 | CryptoKey secret; | |
5710 | if (!keyring.get_secret(name, secret) && | |
5711 | !key_server.get_secret(name, secret)) { | |
5712 | dout(0) << " couldn't get secret for mon service from keyring or keyserver" | |
5713 | << dendl; | |
5714 | stringstream ss, ds; | |
5715 | int err = key_server.list_secrets(ds); | |
5716 | if (err < 0) | |
5717 | ss << "no installed auth entries!"; | |
5718 | else | |
5719 | ss << "installed auth entries:"; | |
5720 | dout(0) << ss.str() << "\n" << ds.str() << dendl; | |
5721 | return false; | |
5722 | } | |
5723 | ||
5724 | ret = key_server.build_session_auth_info(service_id, auth_ticket_info, info, | |
5725 | secret, (uint64_t)-1); | |
5726 | if (ret < 0) { | |
5727 | dout(0) << __func__ << " failed to build mon session_auth_info " | |
5728 | << cpp_strerror(ret) << dendl; | |
5729 | return false; | |
5730 | } | |
5731 | } else if (service_id == CEPH_ENTITY_TYPE_MGR) { | |
5732 | // mgr | |
5733 | ret = key_server.build_session_auth_info(service_id, auth_ticket_info, info); | |
5734 | if (ret < 0) { | |
5735 | derr << __func__ << " failed to build mgr service session_auth_info " | |
5736 | << cpp_strerror(ret) << dendl; | |
5737 | return false; | |
5738 | } | |
5739 | } else { | |
5740 | ceph_abort(); // see check at top of fn | |
5741 | } | |
5742 | ||
5743 | CephXTicketBlob blob; | |
5744 | if (!cephx_build_service_ticket_blob(cct, info, blob)) { | |
5745 | dout(0) << "ms_get_authorizer failed to build service ticket" << dendl; | |
5746 | return false; | |
5747 | } | |
5748 | bufferlist ticket_data; | |
5749 | ::encode(blob, ticket_data); | |
5750 | ||
5751 | bufferlist::iterator iter = ticket_data.begin(); | |
5752 | CephXTicketHandler handler(g_ceph_context, service_id); | |
5753 | ::decode(handler.ticket, iter); | |
5754 | ||
5755 | handler.session_key = info.session_key; | |
5756 | ||
5757 | *authorizer = handler.build_authorizer(0); | |
5758 | ||
5759 | return true; | |
5760 | } | |
5761 | ||
5762 | bool Monitor::ms_verify_authorizer(Connection *con, int peer_type, | |
5763 | int protocol, bufferlist& authorizer_data, | |
5764 | bufferlist& authorizer_reply, | |
5765 | bool& isvalid, CryptoKey& session_key) | |
5766 | { | |
5767 | dout(10) << "ms_verify_authorizer " << con->get_peer_addr() | |
5768 | << " " << ceph_entity_type_name(peer_type) | |
5769 | << " protocol " << protocol << dendl; | |
5770 | ||
5771 | if (is_shutdown()) | |
5772 | return false; | |
5773 | ||
5774 | if (peer_type == CEPH_ENTITY_TYPE_MON && | |
5775 | auth_cluster_required.is_supported_auth(CEPH_AUTH_CEPHX)) { | |
5776 | // monitor, and cephx is enabled | |
5777 | isvalid = false; | |
5778 | if (protocol == CEPH_AUTH_CEPHX) { | |
5779 | bufferlist::iterator iter = authorizer_data.begin(); | |
5780 | CephXServiceTicketInfo auth_ticket_info; | |
5781 | ||
5782 | if (authorizer_data.length()) { | |
5783 | bool ret = cephx_verify_authorizer(g_ceph_context, &keyring, iter, | |
5784 | auth_ticket_info, authorizer_reply); | |
5785 | if (ret) { | |
5786 | session_key = auth_ticket_info.session_key; | |
5787 | isvalid = true; | |
5788 | } else { | |
5789 | dout(0) << "ms_verify_authorizer bad authorizer from mon " << con->get_peer_addr() << dendl; | |
5790 | } | |
5791 | } | |
5792 | } else { | |
5793 | dout(0) << "ms_verify_authorizer cephx enabled, but no authorizer (required for mon)" << dendl; | |
5794 | } | |
5795 | } else { | |
5796 | // who cares. | |
5797 | isvalid = true; | |
5798 | } | |
5799 | return true; | |
5800 | } |