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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) 2015 Red Hat | |
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 | ||
11fdf7f2 | 15 | #include <string_view> |
94b18763 | 16 | |
7c673cae FG |
17 | #include "common/debug.h" |
18 | #include "common/errno.h" | |
19 | ||
20 | #include "messages/MClientRequestForward.h" | |
21 | #include "messages/MMDSLoadTargets.h" | |
7c673cae | 22 | #include "messages/MMDSTableRequest.h" |
7c673cae | 23 | |
9f95a23c TL |
24 | #include "mgr/MgrClient.h" |
25 | ||
7c673cae FG |
26 | #include "MDSDaemon.h" |
27 | #include "MDSMap.h" | |
28 | #include "SnapClient.h" | |
29 | #include "SnapServer.h" | |
30 | #include "MDBalancer.h" | |
91327a77 | 31 | #include "Migrator.h" |
7c673cae | 32 | #include "Locker.h" |
7c673cae FG |
33 | #include "InoTable.h" |
34 | #include "mon/MonClient.h" | |
35 | #include "common/HeartbeatMap.h" | |
36 | #include "ScrubStack.h" | |
37 | ||
38 | ||
39 | #include "MDSRank.h" | |
40 | ||
41 | #define dout_context g_ceph_context | |
42 | #define dout_subsys ceph_subsys_mds | |
43 | #undef dout_prefix | |
44 | #define dout_prefix *_dout << "mds." << whoami << '.' << incarnation << ' ' | |
9f95a23c | 45 | using TOPNSPC::common::cmd_getval; |
f64942e4 AA |
46 | class C_Flush_Journal : public MDSInternalContext { |
47 | public: | |
48 | C_Flush_Journal(MDCache *mdcache, MDLog *mdlog, MDSRank *mds, | |
49 | std::ostream *ss, Context *on_finish) | |
50 | : MDSInternalContext(mds), | |
51 | mdcache(mdcache), mdlog(mdlog), ss(ss), on_finish(on_finish), | |
52 | whoami(mds->whoami), incarnation(mds->incarnation) { | |
53 | } | |
54 | ||
55 | void send() { | |
9f95a23c | 56 | assert(ceph_mutex_is_locked(mds->mds_lock)); |
f64942e4 AA |
57 | |
58 | dout(20) << __func__ << dendl; | |
59 | ||
60 | if (mdcache->is_readonly()) { | |
61 | dout(5) << __func__ << ": read-only FS" << dendl; | |
62 | complete(-EROFS); | |
63 | return; | |
64 | } | |
65 | ||
66 | if (!mds->is_active()) { | |
67 | dout(5) << __func__ << ": MDS not active, no-op" << dendl; | |
68 | complete(0); | |
69 | return; | |
70 | } | |
71 | ||
72 | flush_mdlog(); | |
73 | } | |
74 | ||
75 | private: | |
76 | ||
77 | void flush_mdlog() { | |
78 | dout(20) << __func__ << dendl; | |
79 | ||
80 | // I need to seal off the current segment, and then mark all | |
81 | // previous segments for expiry | |
82 | mdlog->start_new_segment(); | |
83 | ||
9f95a23c | 84 | Context *ctx = new LambdaContext([this](int r) { |
f64942e4 AA |
85 | handle_flush_mdlog(r); |
86 | }); | |
87 | ||
88 | // Flush initially so that all the segments older than our new one | |
89 | // will be elegible for expiry | |
90 | mdlog->flush(); | |
91 | mdlog->wait_for_safe(new MDSInternalContextWrapper(mds, ctx)); | |
92 | } | |
93 | ||
94 | void handle_flush_mdlog(int r) { | |
95 | dout(20) << __func__ << ": r=" << r << dendl; | |
96 | ||
97 | if (r != 0) { | |
98 | *ss << "Error " << r << " (" << cpp_strerror(r) << ") while flushing journal"; | |
99 | complete(r); | |
100 | return; | |
101 | } | |
102 | ||
103 | clear_mdlog(); | |
104 | } | |
105 | ||
106 | void clear_mdlog() { | |
107 | dout(20) << __func__ << dendl; | |
108 | ||
9f95a23c | 109 | Context *ctx = new LambdaContext([this](int r) { |
f64942e4 AA |
110 | handle_clear_mdlog(r); |
111 | }); | |
112 | ||
113 | // Because we may not be the last wait_for_safe context on MDLog, | |
114 | // and subsequent contexts might wake up in the middle of our | |
115 | // later trim_all and interfere with expiry (by e.g. marking | |
116 | // dirs/dentries dirty on previous log segments), we run a second | |
117 | // wait_for_safe here. See #10368 | |
118 | mdlog->wait_for_safe(new MDSInternalContextWrapper(mds, ctx)); | |
119 | } | |
120 | ||
121 | void handle_clear_mdlog(int r) { | |
122 | dout(20) << __func__ << ": r=" << r << dendl; | |
123 | ||
124 | if (r != 0) { | |
125 | *ss << "Error " << r << " (" << cpp_strerror(r) << ") while flushing journal"; | |
126 | complete(r); | |
127 | return; | |
128 | } | |
129 | ||
130 | trim_mdlog(); | |
131 | } | |
132 | ||
133 | void trim_mdlog() { | |
134 | // Put all the old log segments into expiring or expired state | |
135 | dout(5) << __func__ << ": beginning segment expiry" << dendl; | |
136 | ||
137 | int ret = mdlog->trim_all(); | |
138 | if (ret != 0) { | |
139 | *ss << "Error " << ret << " (" << cpp_strerror(ret) << ") while trimming log"; | |
140 | complete(ret); | |
141 | return; | |
142 | } | |
143 | ||
144 | expire_segments(); | |
145 | } | |
146 | ||
147 | void expire_segments() { | |
148 | dout(20) << __func__ << dendl; | |
149 | ||
150 | // Attach contexts to wait for all expiring segments to expire | |
151 | MDSGatherBuilder *expiry_gather = new MDSGatherBuilder(g_ceph_context); | |
152 | ||
153 | const auto &expiring_segments = mdlog->get_expiring_segments(); | |
154 | for (auto p : expiring_segments) { | |
155 | p->wait_for_expiry(expiry_gather->new_sub()); | |
156 | } | |
157 | dout(5) << __func__ << ": waiting for " << expiry_gather->num_subs_created() | |
158 | << " segments to expire" << dendl; | |
159 | ||
160 | if (!expiry_gather->has_subs()) { | |
161 | trim_segments(); | |
162 | delete expiry_gather; | |
163 | return; | |
164 | } | |
165 | ||
9f95a23c | 166 | Context *ctx = new LambdaContext([this](int r) { |
f64942e4 AA |
167 | handle_expire_segments(r); |
168 | }); | |
169 | expiry_gather->set_finisher(new MDSInternalContextWrapper(mds, ctx)); | |
170 | expiry_gather->activate(); | |
171 | } | |
172 | ||
173 | void handle_expire_segments(int r) { | |
174 | dout(20) << __func__ << ": r=" << r << dendl; | |
175 | ||
176 | ceph_assert(r == 0); // MDLog is not allowed to raise errors via | |
177 | // wait_for_expiry | |
178 | trim_segments(); | |
179 | } | |
180 | ||
181 | void trim_segments() { | |
182 | dout(20) << __func__ << dendl; | |
183 | ||
9f95a23c | 184 | Context *ctx = new C_OnFinisher(new LambdaContext([this](int) { |
11fdf7f2 | 185 | std::lock_guard locker(mds->mds_lock); |
f64942e4 AA |
186 | trim_expired_segments(); |
187 | }), mds->finisher); | |
188 | ctx->complete(0); | |
189 | } | |
190 | ||
191 | void trim_expired_segments() { | |
192 | dout(5) << __func__ << ": expiry complete, expire_pos/trim_pos is now " | |
193 | << std::hex << mdlog->get_journaler()->get_expire_pos() << "/" | |
194 | << mdlog->get_journaler()->get_trimmed_pos() << dendl; | |
195 | ||
196 | // Now everyone I'm interested in is expired | |
197 | mdlog->trim_expired_segments(); | |
198 | ||
199 | dout(5) << __func__ << ": trim complete, expire_pos/trim_pos is now " | |
200 | << std::hex << mdlog->get_journaler()->get_expire_pos() << "/" | |
201 | << mdlog->get_journaler()->get_trimmed_pos() << dendl; | |
202 | ||
203 | write_journal_head(); | |
204 | } | |
205 | ||
206 | void write_journal_head() { | |
207 | dout(20) << __func__ << dendl; | |
208 | ||
9f95a23c | 209 | Context *ctx = new LambdaContext([this](int r) { |
11fdf7f2 | 210 | std::lock_guard locker(mds->mds_lock); |
f64942e4 AA |
211 | handle_write_head(r); |
212 | }); | |
213 | // Flush the journal header so that readers will start from after | |
214 | // the flushed region | |
215 | mdlog->get_journaler()->write_head(ctx); | |
216 | } | |
217 | ||
218 | void handle_write_head(int r) { | |
219 | if (r != 0) { | |
220 | *ss << "Error " << r << " (" << cpp_strerror(r) << ") while writing header"; | |
221 | } else { | |
222 | dout(5) << __func__ << ": write_head complete, all done!" << dendl; | |
223 | } | |
224 | ||
225 | complete(r); | |
226 | } | |
227 | ||
228 | void finish(int r) override { | |
229 | dout(20) << __func__ << ": r=" << r << dendl; | |
230 | on_finish->complete(r); | |
231 | } | |
232 | ||
233 | MDCache *mdcache; | |
234 | MDLog *mdlog; | |
235 | std::ostream *ss; | |
236 | Context *on_finish; | |
237 | ||
238 | // so as to use dout | |
239 | mds_rank_t whoami; | |
240 | int incarnation; | |
241 | }; | |
242 | ||
243 | class C_Drop_Cache : public MDSInternalContext { | |
244 | public: | |
245 | C_Drop_Cache(Server *server, MDCache *mdcache, MDLog *mdlog, | |
246 | MDSRank *mds, uint64_t recall_timeout, | |
247 | Formatter *f, Context *on_finish) | |
248 | : MDSInternalContext(mds), | |
249 | server(server), mdcache(mdcache), mdlog(mdlog), | |
a8e16298 TL |
250 | recall_timeout(recall_timeout), recall_start(mono_clock::now()), |
251 | f(f), on_finish(on_finish), | |
f64942e4 AA |
252 | whoami(mds->whoami), incarnation(mds->incarnation) { |
253 | } | |
254 | ||
255 | void send() { | |
256 | // not really a hard requirement here, but lets ensure this in | |
257 | // case we change the logic here. | |
9f95a23c | 258 | assert(ceph_mutex_is_locked(mds->mds_lock)); |
f64942e4 AA |
259 | |
260 | dout(20) << __func__ << dendl; | |
a8e16298 | 261 | f->open_object_section("result"); |
f64942e4 AA |
262 | recall_client_state(); |
263 | } | |
264 | ||
265 | private: | |
266 | // context which completes itself (with -ETIMEDOUT) after a specified | |
267 | // timeout or when explicitly completed, whichever comes first. Note | |
268 | // that the context does not detroy itself after completion -- it | |
269 | // needs to be explicitly freed. | |
270 | class C_ContextTimeout : public MDSInternalContext { | |
271 | public: | |
272 | C_ContextTimeout(MDSRank *mds, uint64_t timeout, Context *on_finish) | |
273 | : MDSInternalContext(mds), | |
274 | timeout(timeout), | |
f64942e4 AA |
275 | on_finish(on_finish) { |
276 | } | |
277 | ~C_ContextTimeout() { | |
278 | ceph_assert(timer_task == nullptr); | |
279 | } | |
280 | ||
281 | void start_timer() { | |
282 | if (!timeout) { | |
283 | return; | |
284 | } | |
285 | ||
9f95a23c | 286 | timer_task = new LambdaContext([this](int) { |
f64942e4 AA |
287 | timer_task = nullptr; |
288 | complete(-ETIMEDOUT); | |
289 | }); | |
290 | mds->timer.add_event_after(timeout, timer_task); | |
291 | } | |
292 | ||
293 | void finish(int r) override { | |
294 | Context *ctx = nullptr; | |
295 | { | |
11fdf7f2 | 296 | std::lock_guard locker(lock); |
f64942e4 AA |
297 | std::swap(on_finish, ctx); |
298 | } | |
299 | if (ctx != nullptr) { | |
300 | ctx->complete(r); | |
301 | } | |
302 | } | |
303 | void complete(int r) override { | |
304 | if (timer_task != nullptr) { | |
305 | mds->timer.cancel_event(timer_task); | |
306 | } | |
307 | ||
308 | finish(r); | |
309 | } | |
310 | ||
311 | uint64_t timeout; | |
9f95a23c | 312 | ceph::mutex lock = ceph::make_mutex("mds::context::timeout"); |
f64942e4 AA |
313 | Context *on_finish = nullptr; |
314 | Context *timer_task = nullptr; | |
315 | }; | |
316 | ||
11fdf7f2 TL |
317 | auto do_trim() { |
318 | auto [throttled, count] = mdcache->trim(UINT64_MAX); | |
319 | dout(10) << __func__ | |
320 | << (throttled ? " (throttled)" : "") | |
321 | << " trimmed " << count << " caps" << dendl; | |
322 | dentries_trimmed += count; | |
323 | return std::make_pair(throttled, count); | |
324 | } | |
325 | ||
f64942e4 AA |
326 | void recall_client_state() { |
327 | dout(20) << __func__ << dendl; | |
a8e16298 TL |
328 | auto now = mono_clock::now(); |
329 | auto duration = std::chrono::duration<double>(now-recall_start).count(); | |
f64942e4 AA |
330 | |
331 | MDSGatherBuilder *gather = new MDSGatherBuilder(g_ceph_context); | |
92f5a8d4 TL |
332 | auto flags = Server::RecallFlags::STEADY|Server::RecallFlags::TRIM; |
333 | auto [throttled, count] = server->recall_client_state(gather, flags); | |
a8e16298 TL |
334 | dout(10) << __func__ |
335 | << (throttled ? " (throttled)" : "") | |
336 | << " recalled " << count << " caps" << dendl; | |
337 | ||
338 | caps_recalled += count; | |
339 | if ((throttled || count > 0) && (recall_timeout == 0 || duration < recall_timeout)) { | |
11fdf7f2 | 340 | C_ContextTimeout *ctx = new C_ContextTimeout( |
9f95a23c | 341 | mds, 1, new LambdaContext([this](int r) { |
11fdf7f2 TL |
342 | recall_client_state(); |
343 | })); | |
344 | ctx->start_timer(); | |
345 | gather->set_finisher(new MDSInternalContextWrapper(mds, ctx)); | |
346 | gather->activate(); | |
347 | mdlog->flush(); /* use down-time to incrementally flush log */ | |
348 | do_trim(); /* use down-time to incrementally trim cache */ | |
a8e16298 TL |
349 | } else { |
350 | if (!gather->has_subs()) { | |
351 | delete gather; | |
352 | return handle_recall_client_state(0); | |
353 | } else if (recall_timeout > 0 && duration > recall_timeout) { | |
11fdf7f2 TL |
354 | gather->set_finisher(new C_MDSInternalNoop); |
355 | gather->activate(); | |
a8e16298 TL |
356 | return handle_recall_client_state(-ETIMEDOUT); |
357 | } else { | |
358 | uint64_t remaining = (recall_timeout == 0 ? 0 : recall_timeout-duration); | |
359 | C_ContextTimeout *ctx = new C_ContextTimeout( | |
9f95a23c | 360 | mds, remaining, new LambdaContext([this](int r) { |
a8e16298 TL |
361 | handle_recall_client_state(r); |
362 | })); | |
363 | ||
364 | ctx->start_timer(); | |
365 | gather->set_finisher(new MDSInternalContextWrapper(mds, ctx)); | |
366 | gather->activate(); | |
367 | } | |
f64942e4 | 368 | } |
f64942e4 AA |
369 | } |
370 | ||
371 | void handle_recall_client_state(int r) { | |
372 | dout(20) << __func__ << ": r=" << r << dendl; | |
373 | ||
374 | // client recall section | |
375 | f->open_object_section("client_recall"); | |
376 | f->dump_int("return_code", r); | |
377 | f->dump_string("message", cpp_strerror(r)); | |
a8e16298 | 378 | f->dump_int("recalled", caps_recalled); |
f64942e4 AA |
379 | f->close_section(); |
380 | ||
381 | // we can still continue after recall timeout | |
f64942e4 AA |
382 | flush_journal(); |
383 | } | |
384 | ||
385 | void flush_journal() { | |
386 | dout(20) << __func__ << dendl; | |
387 | ||
9f95a23c | 388 | Context *ctx = new LambdaContext([this](int r) { |
f64942e4 AA |
389 | handle_flush_journal(r); |
390 | }); | |
391 | ||
392 | C_Flush_Journal *flush_journal = new C_Flush_Journal(mdcache, mdlog, mds, &ss, ctx); | |
393 | flush_journal->send(); | |
394 | } | |
395 | ||
396 | void handle_flush_journal(int r) { | |
397 | dout(20) << __func__ << ": r=" << r << dendl; | |
398 | ||
399 | if (r != 0) { | |
400 | cmd_err(f, ss.str()); | |
401 | complete(r); | |
402 | return; | |
403 | } | |
404 | ||
405 | // journal flush section | |
406 | f->open_object_section("flush_journal"); | |
407 | f->dump_int("return_code", r); | |
408 | f->dump_string("message", ss.str()); | |
409 | f->close_section(); | |
410 | ||
a8e16298 TL |
411 | trim_cache(); |
412 | } | |
413 | ||
414 | void trim_cache() { | |
415 | dout(20) << __func__ << dendl; | |
416 | ||
11fdf7f2 | 417 | auto [throttled, count] = do_trim(); |
a8e16298 | 418 | if (throttled && count > 0) { |
9f95a23c | 419 | auto timer = new LambdaContext([this](int) { |
a8e16298 TL |
420 | trim_cache(); |
421 | }); | |
422 | mds->timer.add_event_after(1.0, timer); | |
423 | } else { | |
424 | cache_status(); | |
425 | } | |
f64942e4 AA |
426 | } |
427 | ||
428 | void cache_status() { | |
429 | dout(20) << __func__ << dendl; | |
430 | ||
a8e16298 TL |
431 | f->open_object_section("trim_cache"); |
432 | f->dump_int("trimmed", dentries_trimmed); | |
433 | f->close_section(); | |
434 | ||
f64942e4 AA |
435 | // cache status section |
436 | mdcache->cache_status(f); | |
f64942e4 AA |
437 | |
438 | complete(0); | |
439 | } | |
440 | ||
441 | void finish(int r) override { | |
442 | dout(20) << __func__ << ": r=" << r << dendl; | |
443 | ||
a8e16298 TL |
444 | auto d = std::chrono::duration<double>(mono_clock::now()-recall_start); |
445 | f->dump_float("duration", d.count()); | |
446 | ||
447 | f->close_section(); | |
f64942e4 AA |
448 | on_finish->complete(r); |
449 | } | |
450 | ||
451 | Server *server; | |
452 | MDCache *mdcache; | |
453 | MDLog *mdlog; | |
454 | uint64_t recall_timeout; | |
a8e16298 | 455 | mono_time recall_start; |
f64942e4 AA |
456 | Formatter *f; |
457 | Context *on_finish; | |
458 | ||
459 | int retval = 0; | |
460 | std::stringstream ss; | |
a8e16298 TL |
461 | uint64_t caps_recalled = 0; |
462 | uint64_t dentries_trimmed = 0; | |
f64942e4 AA |
463 | |
464 | // so as to use dout | |
465 | mds_rank_t whoami; | |
466 | int incarnation; | |
467 | ||
11fdf7f2 | 468 | void cmd_err(Formatter *f, std::string_view err) { |
f64942e4 AA |
469 | f->reset(); |
470 | f->open_object_section("result"); | |
471 | f->dump_string("error", err); | |
472 | f->close_section(); | |
473 | } | |
474 | }; | |
475 | ||
7c673cae FG |
476 | MDSRank::MDSRank( |
477 | mds_rank_t whoami_, | |
9f95a23c | 478 | ceph::mutex &mds_lock_, |
7c673cae FG |
479 | LogChannelRef &clog_, |
480 | SafeTimer &timer_, | |
481 | Beacon &beacon_, | |
11fdf7f2 | 482 | std::unique_ptr<MDSMap>& mdsmap_, |
7c673cae FG |
483 | Messenger *msgr, |
484 | MonClient *monc_, | |
9f95a23c | 485 | MgrClient *mgrc, |
7c673cae | 486 | Context *respawn_hook_, |
9f95a23c TL |
487 | Context *suicide_hook_) : |
488 | cct(msgr->cct), mds_lock(mds_lock_), clog(clog_), | |
489 | timer(timer_), mdsmap(mdsmap_), | |
7c673cae | 490 | objecter(new Objecter(g_ceph_context, msgr, monc_, nullptr, 0, 0)), |
9f95a23c | 491 | damage_table(whoami_), sessionmap(this), |
11fdf7f2 TL |
492 | op_tracker(g_ceph_context, g_conf()->mds_enable_op_tracker, |
493 | g_conf()->osd_num_op_tracker_shard), | |
9f95a23c | 494 | progress_thread(this), whoami(whoami_), |
7c673cae FG |
495 | purge_queue(g_ceph_context, whoami_, |
496 | mdsmap_->get_metadata_pool(), objecter, | |
9f95a23c TL |
497 | new LambdaContext([this](int r) { |
498 | std::lock_guard l(mds_lock); | |
499 | handle_write_error(r); | |
500 | } | |
7c673cae FG |
501 | ) |
502 | ), | |
9f95a23c TL |
503 | beacon(beacon_), |
504 | messenger(msgr), monc(monc_), mgrc(mgrc), | |
7c673cae FG |
505 | respawn_hook(respawn_hook_), |
506 | suicide_hook(suicide_hook_), | |
94b18763 | 507 | starttime(mono_clock::now()) |
7c673cae FG |
508 | { |
509 | hb = g_ceph_context->get_heartbeat_map()->add_worker("MDSRank", pthread_self()); | |
510 | ||
511 | purge_queue.update_op_limit(*mdsmap); | |
512 | ||
9f95a23c | 513 | objecter->unset_honor_pool_full(); |
7c673cae | 514 | |
9f95a23c | 515 | finisher = new Finisher(cct, "MDSRank", "MR_Finisher"); |
7c673cae FG |
516 | |
517 | mdcache = new MDCache(this, purge_queue); | |
518 | mdlog = new MDLog(this); | |
519 | balancer = new MDBalancer(this, messenger, monc); | |
520 | ||
9f95a23c | 521 | scrubstack = new ScrubStack(mdcache, clog, finisher); |
7c673cae FG |
522 | |
523 | inotable = new InoTable(this); | |
524 | snapserver = new SnapServer(this, monc); | |
525 | snapclient = new SnapClient(this); | |
526 | ||
527 | server = new Server(this); | |
528 | locker = new Locker(this, mdcache); | |
529 | ||
b32b8144 FG |
530 | op_tracker.set_complaint_and_threshold(cct->_conf->mds_op_complaint_time, |
531 | cct->_conf->mds_op_log_threshold); | |
532 | op_tracker.set_history_size_and_duration(cct->_conf->mds_op_history_size, | |
533 | cct->_conf->mds_op_history_duration); | |
9f95a23c TL |
534 | |
535 | schedule_update_timer_task(); | |
7c673cae FG |
536 | } |
537 | ||
538 | MDSRank::~MDSRank() | |
539 | { | |
540 | if (hb) { | |
541 | g_ceph_context->get_heartbeat_map()->remove_worker(hb); | |
542 | } | |
543 | ||
544 | if (scrubstack) { delete scrubstack; scrubstack = NULL; } | |
545 | if (mdcache) { delete mdcache; mdcache = NULL; } | |
546 | if (mdlog) { delete mdlog; mdlog = NULL; } | |
547 | if (balancer) { delete balancer; balancer = NULL; } | |
548 | if (inotable) { delete inotable; inotable = NULL; } | |
549 | if (snapserver) { delete snapserver; snapserver = NULL; } | |
550 | if (snapclient) { delete snapclient; snapclient = NULL; } | |
7c673cae FG |
551 | |
552 | if (server) { delete server; server = 0; } | |
553 | if (locker) { delete locker; locker = 0; } | |
554 | ||
555 | if (logger) { | |
556 | g_ceph_context->get_perfcounters_collection()->remove(logger); | |
557 | delete logger; | |
558 | logger = 0; | |
559 | } | |
560 | if (mlogger) { | |
561 | g_ceph_context->get_perfcounters_collection()->remove(mlogger); | |
562 | delete mlogger; | |
563 | mlogger = 0; | |
564 | } | |
565 | ||
566 | delete finisher; | |
567 | finisher = NULL; | |
568 | ||
569 | delete suicide_hook; | |
570 | suicide_hook = NULL; | |
571 | ||
572 | delete respawn_hook; | |
573 | respawn_hook = NULL; | |
574 | ||
575 | delete objecter; | |
576 | objecter = nullptr; | |
577 | } | |
578 | ||
579 | void MDSRankDispatcher::init() | |
580 | { | |
581 | objecter->init(); | |
582 | messenger->add_dispatcher_head(objecter); | |
583 | ||
584 | objecter->start(); | |
585 | ||
586 | update_log_config(); | |
587 | create_logger(); | |
588 | ||
589 | // Expose the OSDMap (already populated during MDS::init) to anyone | |
590 | // who is interested in it. | |
591 | handle_osd_map(); | |
592 | ||
593 | progress_thread.create("mds_rank_progr"); | |
594 | ||
595 | purge_queue.init(); | |
596 | ||
597 | finisher->start(); | |
598 | } | |
599 | ||
11fdf7f2 | 600 | void MDSRank::update_targets() |
7c673cae FG |
601 | { |
602 | // get MonMap's idea of my export_targets | |
603 | const set<mds_rank_t>& map_targets = mdsmap->get_mds_info(get_nodeid()).export_targets; | |
604 | ||
605 | dout(20) << "updating export targets, currently " << map_targets.size() << " ranks are targets" << dendl; | |
606 | ||
607 | bool send = false; | |
608 | set<mds_rank_t> new_map_targets; | |
609 | ||
610 | auto it = export_targets.begin(); | |
611 | while (it != export_targets.end()) { | |
612 | mds_rank_t rank = it->first; | |
11fdf7f2 TL |
613 | auto &counter = it->second; |
614 | dout(20) << "export target mds." << rank << " is " << counter << dendl; | |
7c673cae | 615 | |
11fdf7f2 | 616 | double val = counter.get(); |
7c673cae FG |
617 | if (val <= 0.01) { |
618 | dout(15) << "export target mds." << rank << " is no longer an export target" << dendl; | |
619 | export_targets.erase(it++); | |
620 | send = true; | |
621 | continue; | |
622 | } | |
623 | if (!map_targets.count(rank)) { | |
624 | dout(15) << "export target mds." << rank << " not in map's export_targets" << dendl; | |
625 | send = true; | |
626 | } | |
627 | new_map_targets.insert(rank); | |
628 | it++; | |
629 | } | |
630 | if (new_map_targets.size() < map_targets.size()) { | |
631 | dout(15) << "export target map holds stale targets, sending update" << dendl; | |
632 | send = true; | |
633 | } | |
634 | ||
635 | if (send) { | |
636 | dout(15) << "updating export_targets, now " << new_map_targets.size() << " ranks are targets" << dendl; | |
9f95a23c | 637 | auto m = make_message<MMDSLoadTargets>(mds_gid_t(monc->get_global_id()), new_map_targets); |
11fdf7f2 | 638 | monc->send_mon_message(m.detach()); |
7c673cae FG |
639 | } |
640 | } | |
641 | ||
11fdf7f2 | 642 | void MDSRank::hit_export_target(mds_rank_t rank, double amount) |
7c673cae | 643 | { |
11fdf7f2 | 644 | double rate = g_conf()->mds_bal_target_decay; |
7c673cae | 645 | if (amount < 0.0) { |
11fdf7f2 | 646 | amount = 100.0/g_conf()->mds_bal_target_decay; /* a good default for "i am trying to keep this export_target active" */ |
7c673cae | 647 | } |
11fdf7f2 TL |
648 | auto em = export_targets.emplace(std::piecewise_construct, std::forward_as_tuple(rank), std::forward_as_tuple(DecayRate(rate))); |
649 | auto &counter = em.first->second; | |
650 | counter.hit(amount); | |
7c673cae | 651 | if (em.second) { |
11fdf7f2 TL |
652 | dout(15) << "hit export target (new) is " << counter << dendl; |
653 | } else { | |
654 | dout(15) << "hit export target is " << counter << dendl; | |
655 | } | |
656 | } | |
657 | ||
658 | class C_MDS_MonCommand : public MDSInternalContext { | |
659 | std::string cmd; | |
660 | public: | |
661 | std::string outs; | |
662 | C_MDS_MonCommand(MDSRank *m, std::string_view c) | |
663 | : MDSInternalContext(m), cmd(c) {} | |
664 | void finish(int r) override { | |
665 | mds->_mon_command_finish(r, cmd, outs); | |
666 | } | |
667 | }; | |
668 | ||
669 | void MDSRank::_mon_command_finish(int r, std::string_view cmd, std::string_view outs) | |
670 | { | |
671 | if (r < 0) { | |
672 | dout(0) << __func__ << ": mon command " << cmd << " failed with errno " << r | |
673 | << " (" << outs << ")" << dendl; | |
7c673cae | 674 | } else { |
11fdf7f2 | 675 | dout(1) << __func__ << ": mon command " << cmd << " succeed" << dendl; |
7c673cae | 676 | } |
11fdf7f2 TL |
677 | } |
678 | ||
679 | void MDSRank::set_mdsmap_multimds_snaps_allowed() | |
680 | { | |
681 | static bool already_sent = false; | |
682 | if (already_sent) | |
683 | return; | |
684 | ||
685 | stringstream ss; | |
686 | ss << "{\"prefix\":\"fs set\", \"fs_name\":\"" << mdsmap->get_fs_name() << "\", "; | |
687 | ss << "\"var\":\"allow_multimds_snaps\", \"val\":\"true\", "; | |
688 | ss << "\"confirm\":\"--yes-i-am-really-a-mds\"}"; | |
689 | std::vector<std::string> cmd = {ss.str()}; | |
690 | ||
691 | dout(0) << __func__ << ": sending mon command: " << cmd[0] << dendl; | |
692 | ||
693 | C_MDS_MonCommand *fin = new C_MDS_MonCommand(this, cmd[0]); | |
694 | monc->start_mon_command(cmd, {}, nullptr, &fin->outs, new C_IO_Wrapper(this, fin)); | |
695 | ||
696 | already_sent = true; | |
697 | } | |
698 | ||
699 | void MDSRank::mark_base_recursively_scrubbed(inodeno_t ino) | |
700 | { | |
701 | if (mdsmap->get_tableserver() == whoami) | |
702 | snapserver->mark_base_recursively_scrubbed(ino); | |
7c673cae FG |
703 | } |
704 | ||
705 | void MDSRankDispatcher::tick() | |
706 | { | |
707 | heartbeat_reset(); | |
708 | ||
709 | if (beacon.is_laggy()) { | |
91327a77 | 710 | dout(1) << "skipping upkeep work because connection to Monitors appears laggy" << dendl; |
7c673cae FG |
711 | return; |
712 | } | |
713 | ||
714 | check_ops_in_flight(); | |
715 | ||
716 | // Wake up thread in case we use to be laggy and have waiting_for_nolaggy | |
717 | // messages to progress. | |
718 | progress_thread.signal(); | |
719 | ||
720 | // make sure mds log flushes, trims periodically | |
721 | mdlog->flush(); | |
722 | ||
91327a77 AA |
723 | // update average session uptime |
724 | sessionmap.update_average_session_age(); | |
725 | ||
7c673cae | 726 | if (is_active() || is_stopping()) { |
7c673cae FG |
727 | mdlog->trim(); // NOT during recovery! |
728 | } | |
729 | ||
7c673cae | 730 | // ... |
eafe8130 | 731 | if (is_cache_trimmable()) { |
7c673cae | 732 | server->find_idle_sessions(); |
91327a77 | 733 | server->evict_cap_revoke_non_responders(); |
7c673cae FG |
734 | locker->tick(); |
735 | } | |
736 | ||
11fdf7f2 TL |
737 | // log |
738 | if (logger) { | |
739 | logger->set(l_mds_subtrees, mdcache->num_subtrees()); | |
740 | mdcache->log_stat(); | |
741 | } | |
742 | ||
7c673cae FG |
743 | if (is_reconnect()) |
744 | server->reconnect_tick(); | |
745 | ||
746 | if (is_active()) { | |
747 | balancer->tick(); | |
748 | mdcache->find_stale_fragment_freeze(); | |
749 | mdcache->migrator->find_stale_export_freeze(); | |
11fdf7f2 TL |
750 | |
751 | if (mdsmap->get_tableserver() == whoami) { | |
7c673cae | 752 | snapserver->check_osd_map(false); |
11fdf7f2 TL |
753 | // Filesystem was created by pre-mimic mds. Allow multi-active mds after |
754 | // all old snapshots are deleted. | |
755 | if (!mdsmap->allows_multimds_snaps() && | |
756 | snapserver->can_allow_multimds_snaps()) { | |
757 | set_mdsmap_multimds_snaps_allowed(); | |
758 | } | |
759 | } | |
7c673cae FG |
760 | } |
761 | ||
762 | if (is_active() || is_stopping()) { | |
11fdf7f2 | 763 | update_targets(); |
7c673cae FG |
764 | } |
765 | ||
766 | // shut down? | |
767 | if (is_stopping()) { | |
768 | mdlog->trim(); | |
769 | if (mdcache->shutdown_pass()) { | |
770 | uint64_t pq_progress = 0 ; | |
771 | uint64_t pq_total = 0; | |
772 | size_t pq_in_flight = 0; | |
773 | if (!purge_queue.drain(&pq_progress, &pq_total, &pq_in_flight)) { | |
774 | dout(7) << "shutdown_pass=true, but still waiting for purge queue" | |
775 | << dendl; | |
776 | // This takes unbounded time, so we must indicate progress | |
777 | // to the administrator: we do it in a slightly imperfect way | |
778 | // by sending periodic (tick frequency) clog messages while | |
779 | // in this state. | |
780 | clog->info() << "MDS rank " << whoami << " waiting for purge queue (" | |
781 | << std::dec << pq_progress << "/" << pq_total << " " << pq_in_flight | |
782 | << " files purging" << ")"; | |
783 | } else { | |
784 | dout(7) << "shutdown_pass=true, finished w/ shutdown, moving to " | |
785 | "down:stopped" << dendl; | |
786 | stopping_done(); | |
787 | } | |
788 | } | |
789 | else { | |
790 | dout(7) << "shutdown_pass=false" << dendl; | |
791 | } | |
792 | } | |
793 | ||
794 | // Expose ourselves to Beacon to update health indicators | |
795 | beacon.notify_health(this); | |
796 | } | |
797 | ||
798 | void MDSRankDispatcher::shutdown() | |
799 | { | |
800 | // It should never be possible for shutdown to get called twice, because | |
801 | // anyone picking up mds_lock checks if stopping is true and drops | |
802 | // out if it is. | |
11fdf7f2 | 803 | ceph_assert(stopping == false); |
7c673cae FG |
804 | stopping = true; |
805 | ||
806 | dout(1) << __func__ << ": shutting down rank " << whoami << dendl; | |
807 | ||
92f5a8d4 TL |
808 | g_conf().remove_observer(this); |
809 | ||
7c673cae FG |
810 | timer.shutdown(); |
811 | ||
812 | // MDLog has to shut down before the finisher, because some of its | |
813 | // threads block on IOs that require finisher to complete. | |
814 | mdlog->shutdown(); | |
815 | ||
816 | // shut down cache | |
817 | mdcache->shutdown(); | |
818 | ||
819 | purge_queue.shutdown(); | |
820 | ||
9f95a23c | 821 | mds_lock.unlock(); |
7c673cae | 822 | finisher->stop(); // no flushing |
9f95a23c | 823 | mds_lock.lock(); |
7c673cae | 824 | |
31f18b77 | 825 | if (objecter->initialized) |
7c673cae FG |
826 | objecter->shutdown(); |
827 | ||
828 | monc->shutdown(); | |
829 | ||
830 | op_tracker.on_shutdown(); | |
831 | ||
832 | progress_thread.shutdown(); | |
833 | ||
834 | // release mds_lock for finisher/messenger threads (e.g. | |
835 | // MDSDaemon::ms_handle_reset called from Messenger). | |
9f95a23c | 836 | mds_lock.unlock(); |
7c673cae FG |
837 | |
838 | // shut down messenger | |
839 | messenger->shutdown(); | |
840 | ||
9f95a23c | 841 | mds_lock.lock(); |
7c673cae FG |
842 | |
843 | // Workaround unclean shutdown: HeartbeatMap will assert if | |
844 | // worker is not removed (as we do in ~MDS), but ~MDS is not | |
845 | // always called after suicide. | |
846 | if (hb) { | |
847 | g_ceph_context->get_heartbeat_map()->remove_worker(hb); | |
848 | hb = NULL; | |
849 | } | |
850 | } | |
851 | ||
852 | /** | |
853 | * Helper for simple callbacks that call a void fn with no args. | |
854 | */ | |
855 | class C_MDS_VoidFn : public MDSInternalContext | |
856 | { | |
857 | typedef void (MDSRank::*fn_ptr)(); | |
858 | protected: | |
859 | fn_ptr fn; | |
860 | public: | |
861 | C_MDS_VoidFn(MDSRank *mds_, fn_ptr fn_) | |
862 | : MDSInternalContext(mds_), fn(fn_) | |
863 | { | |
11fdf7f2 TL |
864 | ceph_assert(mds_); |
865 | ceph_assert(fn_); | |
7c673cae FG |
866 | } |
867 | ||
868 | void finish(int r) override | |
869 | { | |
870 | (mds->*fn)(); | |
871 | } | |
872 | }; | |
873 | ||
874 | int64_t MDSRank::get_metadata_pool() | |
875 | { | |
876 | return mdsmap->get_metadata_pool(); | |
877 | } | |
878 | ||
879 | MDSTableClient *MDSRank::get_table_client(int t) | |
880 | { | |
881 | switch (t) { | |
882 | case TABLE_ANCHOR: return NULL; | |
883 | case TABLE_SNAP: return snapclient; | |
884 | default: ceph_abort(); | |
885 | } | |
886 | } | |
887 | ||
888 | MDSTableServer *MDSRank::get_table_server(int t) | |
889 | { | |
890 | switch (t) { | |
891 | case TABLE_ANCHOR: return NULL; | |
892 | case TABLE_SNAP: return snapserver; | |
893 | default: ceph_abort(); | |
894 | } | |
895 | } | |
896 | ||
897 | void MDSRank::suicide() | |
898 | { | |
899 | if (suicide_hook) { | |
900 | suicide_hook->complete(0); | |
901 | suicide_hook = NULL; | |
902 | } | |
903 | } | |
904 | ||
905 | void MDSRank::respawn() | |
906 | { | |
907 | if (respawn_hook) { | |
908 | respawn_hook->complete(0); | |
909 | respawn_hook = NULL; | |
910 | } | |
911 | } | |
912 | ||
913 | void MDSRank::damaged() | |
914 | { | |
11fdf7f2 | 915 | ceph_assert(whoami != MDS_RANK_NONE); |
9f95a23c | 916 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
7c673cae | 917 | |
11fdf7f2 | 918 | beacon.set_want_state(*mdsmap, MDSMap::STATE_DAMAGED); |
7c673cae FG |
919 | monc->flush_log(); // Flush any clog error from before we were called |
920 | beacon.notify_health(this); // Include latest status in our swan song | |
11fdf7f2 | 921 | beacon.send_and_wait(g_conf()->mds_mon_shutdown_timeout); |
7c673cae FG |
922 | |
923 | // It's okay if we timed out and the mon didn't get our beacon, because | |
924 | // another daemon (or ourselves after respawn) will eventually take the | |
925 | // rank and report DAMAGED again when it hits same problem we did. | |
926 | ||
927 | respawn(); // Respawn into standby in case mon has other work for us | |
928 | } | |
929 | ||
930 | void MDSRank::damaged_unlocked() | |
931 | { | |
11fdf7f2 | 932 | std::lock_guard l(mds_lock); |
7c673cae FG |
933 | damaged(); |
934 | } | |
935 | ||
936 | void MDSRank::handle_write_error(int err) | |
937 | { | |
938 | if (err == -EBLACKLISTED) { | |
939 | derr << "we have been blacklisted (fenced), respawning..." << dendl; | |
940 | respawn(); | |
941 | return; | |
942 | } | |
943 | ||
11fdf7f2 | 944 | if (g_conf()->mds_action_on_write_error >= 2) { |
7c673cae FG |
945 | derr << "unhandled write error " << cpp_strerror(err) << ", suicide..." << dendl; |
946 | respawn(); | |
11fdf7f2 | 947 | } else if (g_conf()->mds_action_on_write_error == 1) { |
7c673cae FG |
948 | derr << "unhandled write error " << cpp_strerror(err) << ", force readonly..." << dendl; |
949 | mdcache->force_readonly(); | |
950 | } else { | |
951 | // ignore; | |
952 | derr << "unhandled write error " << cpp_strerror(err) << ", ignore..." << dendl; | |
953 | } | |
954 | } | |
955 | ||
956 | void *MDSRank::ProgressThread::entry() | |
957 | { | |
9f95a23c | 958 | std::unique_lock l(mds->mds_lock); |
7c673cae | 959 | while (true) { |
9f95a23c TL |
960 | cond.wait(l, [this] { |
961 | return (mds->stopping || | |
962 | !mds->finished_queue.empty() || | |
963 | (!mds->waiting_for_nolaggy.empty() && !mds->beacon.is_laggy())); | |
964 | }); | |
7c673cae FG |
965 | |
966 | if (mds->stopping) { | |
967 | break; | |
968 | } | |
969 | ||
970 | mds->_advance_queues(); | |
971 | } | |
972 | ||
973 | return NULL; | |
974 | } | |
975 | ||
976 | ||
977 | void MDSRank::ProgressThread::shutdown() | |
978 | { | |
9f95a23c | 979 | ceph_assert(ceph_mutex_is_locked_by_me(mds->mds_lock)); |
11fdf7f2 | 980 | ceph_assert(mds->stopping); |
7c673cae FG |
981 | |
982 | if (am_self()) { | |
983 | // Stopping is set, we will fall out of our main loop naturally | |
984 | } else { | |
985 | // Kick the thread to notice mds->stopping, and join it | |
9f95a23c TL |
986 | cond.notify_all(); |
987 | mds->mds_lock.unlock(); | |
7c673cae FG |
988 | if (is_started()) |
989 | join(); | |
9f95a23c | 990 | mds->mds_lock.lock(); |
7c673cae FG |
991 | } |
992 | } | |
993 | ||
9f95a23c | 994 | bool MDSRankDispatcher::ms_dispatch(const cref_t<Message> &m) |
7c673cae | 995 | { |
f64942e4 | 996 | if (m->get_source().is_client()) { |
11fdf7f2 | 997 | Session *session = static_cast<Session*>(m->get_connection()->get_priv().get()); |
f64942e4 AA |
998 | if (session) |
999 | session->last_seen = Session::clock::now(); | |
1000 | } | |
1001 | ||
7c673cae | 1002 | inc_dispatch_depth(); |
f64942e4 | 1003 | bool ret = _dispatch(m, true); |
7c673cae FG |
1004 | dec_dispatch_depth(); |
1005 | return ret; | |
1006 | } | |
1007 | ||
9f95a23c | 1008 | bool MDSRank::_dispatch(const cref_t<Message> &m, bool new_msg) |
7c673cae FG |
1009 | { |
1010 | if (is_stale_message(m)) { | |
7c673cae FG |
1011 | return true; |
1012 | } | |
1013 | ||
1014 | if (beacon.is_laggy()) { | |
91327a77 | 1015 | dout(5) << " laggy, deferring " << *m << dendl; |
7c673cae FG |
1016 | waiting_for_nolaggy.push_back(m); |
1017 | } else if (new_msg && !waiting_for_nolaggy.empty()) { | |
91327a77 | 1018 | dout(5) << " there are deferred messages, deferring " << *m << dendl; |
7c673cae FG |
1019 | waiting_for_nolaggy.push_back(m); |
1020 | } else { | |
1021 | if (!handle_deferrable_message(m)) { | |
7c673cae FG |
1022 | return false; |
1023 | } | |
1024 | ||
1025 | heartbeat_reset(); | |
1026 | } | |
1027 | ||
1028 | if (dispatch_depth > 1) | |
1029 | return true; | |
1030 | ||
1031 | // finish any triggered contexts | |
1032 | _advance_queues(); | |
1033 | ||
1034 | if (beacon.is_laggy()) { | |
1035 | // We've gone laggy during dispatch, don't do any | |
1036 | // more housekeeping | |
1037 | return true; | |
1038 | } | |
1039 | ||
7c673cae FG |
1040 | // hack: thrash exports |
1041 | static utime_t start; | |
1042 | utime_t now = ceph_clock_now(); | |
1043 | if (start == utime_t()) | |
1044 | start = now; | |
1045 | /*double el = now - start; | |
1046 | if (el > 30.0 && | |
1047 | el < 60.0)*/ | |
11fdf7f2 | 1048 | for (int i=0; i<g_conf()->mds_thrash_exports; i++) { |
7c673cae FG |
1049 | set<mds_rank_t> s; |
1050 | if (!is_active()) break; | |
1051 | mdsmap->get_mds_set(s, MDSMap::STATE_ACTIVE); | |
1052 | if (s.size() < 2 || CInode::count() < 10) | |
1053 | break; // need peers for this to work. | |
11fdf7f2 TL |
1054 | if (mdcache->migrator->get_num_exporting() > g_conf()->mds_thrash_exports * 5 || |
1055 | mdcache->migrator->get_export_queue_size() > g_conf()->mds_thrash_exports * 10) | |
7c673cae FG |
1056 | break; |
1057 | ||
11fdf7f2 | 1058 | dout(7) << "mds thrashing exports pass " << (i+1) << "/" << g_conf()->mds_thrash_exports << dendl; |
7c673cae FG |
1059 | |
1060 | // pick a random dir inode | |
1061 | CInode *in = mdcache->hack_pick_random_inode(); | |
1062 | ||
9f95a23c | 1063 | auto&& ls = in->get_dirfrags(); |
7c673cae | 1064 | if (!ls.empty()) { // must be an open dir. |
9f95a23c | 1065 | const auto& dir = ls[rand() % ls.size()]; |
7c673cae FG |
1066 | if (!dir->get_parent_dir()) continue; // must be linked. |
1067 | if (!dir->is_auth()) continue; // must be auth. | |
1068 | ||
1069 | mds_rank_t dest; | |
1070 | do { | |
1071 | int k = rand() % s.size(); | |
1072 | set<mds_rank_t>::iterator p = s.begin(); | |
1073 | while (k--) ++p; | |
1074 | dest = *p; | |
1075 | } while (dest == whoami); | |
1076 | mdcache->migrator->export_dir_nicely(dir,dest); | |
1077 | } | |
1078 | } | |
1079 | // hack: thrash fragments | |
11fdf7f2 | 1080 | for (int i=0; i<g_conf()->mds_thrash_fragments; i++) { |
7c673cae | 1081 | if (!is_active()) break; |
11fdf7f2 TL |
1082 | if (mdcache->get_num_fragmenting_dirs() > 5 * g_conf()->mds_thrash_fragments) break; |
1083 | dout(7) << "mds thrashing fragments pass " << (i+1) << "/" << g_conf()->mds_thrash_fragments << dendl; | |
7c673cae FG |
1084 | |
1085 | // pick a random dir inode | |
1086 | CInode *in = mdcache->hack_pick_random_inode(); | |
1087 | ||
9f95a23c | 1088 | auto&& ls = in->get_dirfrags(); |
7c673cae FG |
1089 | if (ls.empty()) continue; // must be an open dir. |
1090 | CDir *dir = ls.front(); | |
1091 | if (!dir->get_parent_dir()) continue; // must be linked. | |
1092 | if (!dir->is_auth()) continue; // must be auth. | |
1093 | frag_t fg = dir->get_frag(); | |
11fdf7f2 TL |
1094 | if ((fg == frag_t() || (rand() % (1 << fg.bits()) == 0))) { |
1095 | mdcache->split_dir(dir, 1); | |
1096 | } else { | |
1097 | balancer->queue_merge(dir); | |
7c673cae FG |
1098 | } |
1099 | } | |
1100 | ||
1101 | // hack: force hash root? | |
1102 | /* | |
1103 | if (false && | |
1104 | mdcache->get_root() && | |
1105 | mdcache->get_root()->dir && | |
1106 | !(mdcache->get_root()->dir->is_hashed() || | |
1107 | mdcache->get_root()->dir->is_hashing())) { | |
1108 | dout(0) << "hashing root" << dendl; | |
1109 | mdcache->migrator->hash_dir(mdcache->get_root()->dir); | |
1110 | } | |
1111 | */ | |
1112 | ||
c07f9fc5 FG |
1113 | update_mlogger(); |
1114 | return true; | |
1115 | } | |
1116 | ||
1117 | void MDSRank::update_mlogger() | |
1118 | { | |
7c673cae FG |
1119 | if (mlogger) { |
1120 | mlogger->set(l_mdm_ino, CInode::count()); | |
1121 | mlogger->set(l_mdm_dir, CDir::count()); | |
1122 | mlogger->set(l_mdm_dn, CDentry::count()); | |
1123 | mlogger->set(l_mdm_cap, Capability::count()); | |
7c673cae FG |
1124 | mlogger->set(l_mdm_inoa, CInode::increments()); |
1125 | mlogger->set(l_mdm_inos, CInode::decrements()); | |
1126 | mlogger->set(l_mdm_dira, CDir::increments()); | |
1127 | mlogger->set(l_mdm_dirs, CDir::decrements()); | |
1128 | mlogger->set(l_mdm_dna, CDentry::increments()); | |
1129 | mlogger->set(l_mdm_dns, CDentry::decrements()); | |
1130 | mlogger->set(l_mdm_capa, Capability::increments()); | |
1131 | mlogger->set(l_mdm_caps, Capability::decrements()); | |
7c673cae | 1132 | } |
7c673cae FG |
1133 | } |
1134 | ||
1135 | /* | |
1136 | * lower priority messages we defer if we seem laggy | |
1137 | */ | |
9f95a23c | 1138 | bool MDSRank::handle_deferrable_message(const cref_t<Message> &m) |
7c673cae FG |
1139 | { |
1140 | int port = m->get_type() & 0xff00; | |
1141 | ||
1142 | switch (port) { | |
1143 | case MDS_PORT_CACHE: | |
1144 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1145 | mdcache->dispatch(m); | |
1146 | break; | |
1147 | ||
1148 | case MDS_PORT_MIGRATOR: | |
1149 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1150 | mdcache->migrator->dispatch(m); | |
1151 | break; | |
1152 | ||
1153 | default: | |
1154 | switch (m->get_type()) { | |
1155 | // SERVER | |
1156 | case CEPH_MSG_CLIENT_SESSION: | |
1157 | case CEPH_MSG_CLIENT_RECONNECT: | |
11fdf7f2 | 1158 | case CEPH_MSG_CLIENT_RECLAIM: |
7c673cae FG |
1159 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_CLIENT); |
1160 | // fall-thru | |
1161 | case CEPH_MSG_CLIENT_REQUEST: | |
1162 | server->dispatch(m); | |
1163 | break; | |
1164 | case MSG_MDS_SLAVE_REQUEST: | |
1165 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1166 | server->dispatch(m); | |
1167 | break; | |
1168 | ||
1169 | case MSG_MDS_HEARTBEAT: | |
1170 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1171 | balancer->proc_message(m); | |
1172 | break; | |
1173 | ||
1174 | case MSG_MDS_TABLE_REQUEST: | |
1175 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1176 | { | |
9f95a23c | 1177 | const cref_t<MMDSTableRequest> &req = ref_cast<MMDSTableRequest>(m); |
11fdf7f2 TL |
1178 | if (req->op < 0) { |
1179 | MDSTableClient *client = get_table_client(req->table); | |
1180 | client->handle_request(req); | |
1181 | } else { | |
1182 | MDSTableServer *server = get_table_server(req->table); | |
1183 | server->handle_request(req); | |
1184 | } | |
7c673cae FG |
1185 | } |
1186 | break; | |
1187 | ||
1188 | case MSG_MDS_LOCK: | |
1189 | case MSG_MDS_INODEFILECAPS: | |
1190 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1191 | locker->dispatch(m); | |
1192 | break; | |
1193 | ||
1194 | case CEPH_MSG_CLIENT_CAPS: | |
1195 | case CEPH_MSG_CLIENT_CAPRELEASE: | |
1196 | case CEPH_MSG_CLIENT_LEASE: | |
1197 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_CLIENT); | |
1198 | locker->dispatch(m); | |
1199 | break; | |
1200 | ||
1201 | default: | |
1202 | return false; | |
1203 | } | |
1204 | } | |
1205 | ||
1206 | return true; | |
1207 | } | |
1208 | ||
1209 | /** | |
1210 | * Advance finished_queue and waiting_for_nolaggy. | |
1211 | * | |
1212 | * Usually drain both queues, but may not drain waiting_for_nolaggy | |
1213 | * if beacon is currently laggy. | |
1214 | */ | |
1215 | void MDSRank::_advance_queues() | |
1216 | { | |
9f95a23c | 1217 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
7c673cae | 1218 | |
11fdf7f2 | 1219 | if (!finished_queue.empty()) { |
7c673cae | 1220 | dout(7) << "mds has " << finished_queue.size() << " queued contexts" << dendl; |
11fdf7f2 TL |
1221 | while (!finished_queue.empty()) { |
1222 | auto fin = finished_queue.front(); | |
1223 | finished_queue.pop_front(); | |
1224 | ||
1225 | dout(10) << " finish " << fin << dendl; | |
1226 | fin->complete(0); | |
7c673cae FG |
1227 | |
1228 | heartbeat_reset(); | |
1229 | } | |
1230 | } | |
1231 | ||
1232 | while (!waiting_for_nolaggy.empty()) { | |
1233 | // stop if we're laggy now! | |
1234 | if (beacon.is_laggy()) | |
1235 | break; | |
1236 | ||
9f95a23c | 1237 | cref_t<Message> old = waiting_for_nolaggy.front(); |
7c673cae FG |
1238 | waiting_for_nolaggy.pop_front(); |
1239 | ||
11fdf7f2 | 1240 | if (!is_stale_message(old)) { |
7c673cae FG |
1241 | dout(7) << " processing laggy deferred " << *old << dendl; |
1242 | if (!handle_deferrable_message(old)) { | |
1243 | dout(0) << "unrecognized message " << *old << dendl; | |
7c673cae FG |
1244 | } |
1245 | } | |
1246 | ||
1247 | heartbeat_reset(); | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | /** | |
1252 | * Call this when you take mds_lock, or periodically if you're going to | |
1253 | * hold the lock for a long time (e.g. iterating over clients/inodes) | |
1254 | */ | |
1255 | void MDSRank::heartbeat_reset() | |
1256 | { | |
1257 | // Any thread might jump into mds_lock and call us immediately | |
1258 | // after a call to suicide() completes, in which case MDSRank::hb | |
1259 | // has been freed and we are a no-op. | |
1260 | if (!hb) { | |
11fdf7f2 | 1261 | ceph_assert(stopping); |
7c673cae FG |
1262 | return; |
1263 | } | |
1264 | ||
1265 | // NB not enabling suicide grace, because the mon takes care of killing us | |
1266 | // (by blacklisting us) when we fail to send beacons, and it's simpler to | |
1267 | // only have one way of dying. | |
11fdf7f2 | 1268 | auto grace = g_conf().get_val<double>("mds_heartbeat_grace"); |
f64942e4 | 1269 | g_ceph_context->get_heartbeat_map()->reset_timeout(hb, grace, 0); |
7c673cae FG |
1270 | } |
1271 | ||
9f95a23c | 1272 | bool MDSRank::is_stale_message(const cref_t<Message> &m) const |
7c673cae FG |
1273 | { |
1274 | // from bad mds? | |
1275 | if (m->get_source().is_mds()) { | |
1276 | mds_rank_t from = mds_rank_t(m->get_source().num()); | |
11fdf7f2 TL |
1277 | bool bad = false; |
1278 | if (mdsmap->is_down(from)) { | |
1279 | bad = true; | |
1280 | } else { | |
1281 | // FIXME: this is a convoluted check. we should be maintaining a nice | |
1282 | // clean map of current ConnectionRefs for current mdses!!! | |
1283 | auto c = messenger->connect_to(CEPH_ENTITY_TYPE_MDS, | |
1284 | mdsmap->get_addrs(from)); | |
1285 | if (c != m->get_connection()) { | |
1286 | bad = true; | |
1287 | dout(5) << " mds." << from << " should be " << c << " " | |
1288 | << c->get_peer_addrs() << " but this message is " | |
1289 | << m->get_connection() << " " << m->get_source_addrs() | |
1290 | << dendl; | |
1291 | } | |
1292 | } | |
1293 | if (bad) { | |
7c673cae FG |
1294 | // bogus mds? |
1295 | if (m->get_type() == CEPH_MSG_MDS_MAP) { | |
1296 | dout(5) << "got " << *m << " from old/bad/imposter mds " << m->get_source() | |
1297 | << ", but it's an mdsmap, looking at it" << dendl; | |
1298 | } else if (m->get_type() == MSG_MDS_CACHEEXPIRE && | |
11fdf7f2 | 1299 | mdsmap->get_addrs(from) == m->get_source_addrs()) { |
7c673cae FG |
1300 | dout(5) << "got " << *m << " from down mds " << m->get_source() |
1301 | << ", but it's a cache_expire, looking at it" << dendl; | |
1302 | } else { | |
1303 | dout(5) << "got " << *m << " from down/old/bad/imposter mds " << m->get_source() | |
1304 | << ", dropping" << dendl; | |
1305 | return true; | |
1306 | } | |
1307 | } | |
1308 | } | |
1309 | return false; | |
1310 | } | |
1311 | ||
9f95a23c | 1312 | Session *MDSRank::get_session(const cref_t<Message> &m) |
94b18763 | 1313 | { |
11fdf7f2 TL |
1314 | // do not carry ref |
1315 | auto session = static_cast<Session *>(m->get_connection()->get_priv().get()); | |
94b18763 FG |
1316 | if (session) { |
1317 | dout(20) << "get_session have " << session << " " << session->info.inst | |
1318 | << " state " << session->get_state_name() << dendl; | |
28e407b8 AA |
1319 | // Check if we've imported an open session since (new sessions start closed) |
1320 | if (session->is_closed()) { | |
1321 | Session *imported_session = sessionmap.get_session(session->info.inst.name); | |
1322 | if (imported_session && imported_session != session) { | |
11fdf7f2 TL |
1323 | dout(10) << __func__ << " replacing connection bootstrap session " |
1324 | << session << " with imported session " << imported_session | |
1325 | << dendl; | |
28e407b8 AA |
1326 | imported_session->info.auth_name = session->info.auth_name; |
1327 | //assert(session->info.auth_name == imported_session->info.auth_name); | |
11fdf7f2 TL |
1328 | ceph_assert(session->info.inst == imported_session->info.inst); |
1329 | imported_session->set_connection(session->get_connection().get()); | |
28e407b8 AA |
1330 | // send out any queued messages |
1331 | while (!session->preopen_out_queue.empty()) { | |
11fdf7f2 | 1332 | imported_session->get_connection()->send_message2(std::move(session->preopen_out_queue.front())); |
28e407b8 AA |
1333 | session->preopen_out_queue.pop_front(); |
1334 | } | |
1335 | imported_session->auth_caps = session->auth_caps; | |
f64942e4 | 1336 | imported_session->last_seen = session->last_seen; |
11fdf7f2 TL |
1337 | ceph_assert(session->get_nref() == 1); |
1338 | imported_session->get_connection()->set_priv(imported_session->get()); | |
28e407b8 AA |
1339 | session = imported_session; |
1340 | } | |
1341 | } | |
94b18763 FG |
1342 | } else { |
1343 | dout(20) << "get_session dne for " << m->get_source_inst() << dendl; | |
1344 | } | |
1345 | return session; | |
1346 | } | |
7c673cae | 1347 | |
9f95a23c | 1348 | void MDSRank::send_message(const ref_t<Message>& m, const ConnectionRef& c) |
7c673cae | 1349 | { |
11fdf7f2 TL |
1350 | ceph_assert(c); |
1351 | c->send_message2(m); | |
7c673cae FG |
1352 | } |
1353 | ||
1354 | ||
9f95a23c | 1355 | void MDSRank::send_message_mds(const ref_t<Message>& m, mds_rank_t mds) |
7c673cae FG |
1356 | { |
1357 | if (!mdsmap->is_up(mds)) { | |
1358 | dout(10) << "send_message_mds mds." << mds << " not up, dropping " << *m << dendl; | |
7c673cae FG |
1359 | return; |
1360 | } | |
1361 | ||
1362 | // send mdsmap first? | |
1363 | if (mds != whoami && peer_mdsmap_epoch[mds] < mdsmap->get_epoch()) { | |
9f95a23c | 1364 | auto _m = make_message<MMDSMap>(monc->get_fsid(), *mdsmap); |
11fdf7f2 | 1365 | messenger->send_to_mds(_m.detach(), mdsmap->get_addrs(mds)); |
7c673cae FG |
1366 | peer_mdsmap_epoch[mds] = mdsmap->get_epoch(); |
1367 | } | |
1368 | ||
1369 | // send message | |
9f95a23c | 1370 | messenger->send_to_mds(ref_t<Message>(m).detach(), mdsmap->get_addrs(mds)); |
7c673cae FG |
1371 | } |
1372 | ||
9f95a23c | 1373 | void MDSRank::forward_message_mds(const cref_t<MClientRequest>& m, mds_rank_t mds) |
7c673cae | 1374 | { |
11fdf7f2 | 1375 | ceph_assert(mds != whoami); |
7c673cae | 1376 | |
11fdf7f2 TL |
1377 | /* |
1378 | * don't actually forward if non-idempotent! | |
1379 | * client has to do it. although the MDS will ignore duplicate requests, | |
1380 | * the affected metadata may migrate, in which case the new authority | |
1381 | * won't have the metareq_id in the completed request map. | |
1382 | */ | |
1383 | // NEW: always make the client resend! | |
1384 | bool client_must_resend = true; //!creq->can_forward(); | |
7c673cae | 1385 | |
11fdf7f2 TL |
1386 | // tell the client where it should go |
1387 | auto session = get_session(m); | |
9f95a23c | 1388 | auto f = make_message<MClientRequestForward>(m->get_tid(), mds, m->get_num_fwd()+1, client_must_resend); |
11fdf7f2 | 1389 | send_message_client(f, session); |
7c673cae FG |
1390 | } |
1391 | ||
9f95a23c | 1392 | void MDSRank::send_message_client_counted(const ref_t<Message>& m, client_t client) |
7c673cae | 1393 | { |
11fdf7f2 | 1394 | Session *session = sessionmap.get_session(entity_name_t::CLIENT(client.v)); |
7c673cae FG |
1395 | if (session) { |
1396 | send_message_client_counted(m, session); | |
1397 | } else { | |
1398 | dout(10) << "send_message_client_counted no session for client." << client << " " << *m << dendl; | |
1399 | } | |
1400 | } | |
1401 | ||
9f95a23c | 1402 | void MDSRank::send_message_client_counted(const ref_t<Message>& m, const ConnectionRef& connection) |
7c673cae | 1403 | { |
11fdf7f2 TL |
1404 | // do not carry ref |
1405 | auto session = static_cast<Session *>(connection->get_priv().get()); | |
7c673cae | 1406 | if (session) { |
7c673cae FG |
1407 | send_message_client_counted(m, session); |
1408 | } else { | |
1409 | dout(10) << "send_message_client_counted has no session for " << m->get_source_inst() << dendl; | |
1410 | // another Connection took over the Session | |
1411 | } | |
1412 | } | |
1413 | ||
9f95a23c | 1414 | void MDSRank::send_message_client_counted(const ref_t<Message>& m, Session* session) |
7c673cae FG |
1415 | { |
1416 | version_t seq = session->inc_push_seq(); | |
1417 | dout(10) << "send_message_client_counted " << session->info.inst.name << " seq " | |
1418 | << seq << " " << *m << dendl; | |
11fdf7f2 TL |
1419 | if (session->get_connection()) { |
1420 | session->get_connection()->send_message2(m); | |
7c673cae FG |
1421 | } else { |
1422 | session->preopen_out_queue.push_back(m); | |
1423 | } | |
1424 | } | |
1425 | ||
9f95a23c | 1426 | void MDSRank::send_message_client(const ref_t<Message>& m, Session* session) |
7c673cae FG |
1427 | { |
1428 | dout(10) << "send_message_client " << session->info.inst << " " << *m << dendl; | |
11fdf7f2 TL |
1429 | if (session->get_connection()) { |
1430 | session->get_connection()->send_message2(m); | |
7c673cae FG |
1431 | } else { |
1432 | session->preopen_out_queue.push_back(m); | |
1433 | } | |
1434 | } | |
1435 | ||
1436 | /** | |
1437 | * This is used whenever a RADOS operation has been cancelled | |
1438 | * or a RADOS client has been blacklisted, to cause the MDS and | |
1439 | * any clients to wait for this OSD epoch before using any new caps. | |
1440 | * | |
1441 | * See doc/cephfs/eviction | |
1442 | */ | |
1443 | void MDSRank::set_osd_epoch_barrier(epoch_t e) | |
1444 | { | |
1445 | dout(4) << __func__ << ": epoch=" << e << dendl; | |
1446 | osd_epoch_barrier = e; | |
1447 | } | |
1448 | ||
9f95a23c | 1449 | void MDSRank::retry_dispatch(const cref_t<Message> &m) |
7c673cae FG |
1450 | { |
1451 | inc_dispatch_depth(); | |
1452 | _dispatch(m, false); | |
1453 | dec_dispatch_depth(); | |
1454 | } | |
1455 | ||
91327a77 | 1456 | double MDSRank::get_dispatch_queue_max_age(utime_t now) const |
7c673cae | 1457 | { |
91327a77 | 1458 | return messenger->get_dispatch_queue_max_age(now); |
7c673cae FG |
1459 | } |
1460 | ||
1461 | bool MDSRank::is_daemon_stopping() const | |
1462 | { | |
1463 | return stopping; | |
1464 | } | |
1465 | ||
1466 | void MDSRank::request_state(MDSMap::DaemonState s) | |
1467 | { | |
1468 | dout(3) << "request_state " << ceph_mds_state_name(s) << dendl; | |
11fdf7f2 | 1469 | beacon.set_want_state(*mdsmap, s); |
7c673cae FG |
1470 | beacon.send(); |
1471 | } | |
1472 | ||
1473 | ||
1474 | class C_MDS_BootStart : public MDSInternalContext { | |
1475 | MDSRank::BootStep nextstep; | |
1476 | public: | |
1477 | C_MDS_BootStart(MDSRank *m, MDSRank::BootStep n) | |
1478 | : MDSInternalContext(m), nextstep(n) {} | |
1479 | void finish(int r) override { | |
1480 | mds->boot_start(nextstep, r); | |
1481 | } | |
1482 | }; | |
1483 | ||
1484 | ||
1485 | void MDSRank::boot_start(BootStep step, int r) | |
1486 | { | |
1487 | // Handle errors from previous step | |
1488 | if (r < 0) { | |
1489 | if (is_standby_replay() && (r == -EAGAIN)) { | |
1490 | dout(0) << "boot_start encountered an error EAGAIN" | |
1491 | << ", respawning since we fell behind journal" << dendl; | |
1492 | respawn(); | |
1493 | } else if (r == -EINVAL || r == -ENOENT) { | |
1494 | // Invalid or absent data, indicates damaged on-disk structures | |
1495 | clog->error() << "Error loading MDS rank " << whoami << ": " | |
1496 | << cpp_strerror(r); | |
1497 | damaged(); | |
11fdf7f2 | 1498 | ceph_assert(r == 0); // Unreachable, damaged() calls respawn() |
f64942e4 AA |
1499 | } else if (r == -EROFS) { |
1500 | dout(0) << "boot error forcing transition to read-only; MDS will try to continue" << dendl; | |
7c673cae FG |
1501 | } else { |
1502 | // Completely unexpected error, give up and die | |
1503 | dout(0) << "boot_start encountered an error, failing" << dendl; | |
1504 | suicide(); | |
1505 | return; | |
1506 | } | |
1507 | } | |
1508 | ||
11fdf7f2 | 1509 | ceph_assert(is_starting() || is_any_replay()); |
7c673cae FG |
1510 | |
1511 | switch(step) { | |
1512 | case MDS_BOOT_INITIAL: | |
1513 | { | |
1514 | mdcache->init_layouts(); | |
1515 | ||
1516 | MDSGatherBuilder gather(g_ceph_context, | |
1517 | new C_MDS_BootStart(this, MDS_BOOT_OPEN_ROOT)); | |
a8e16298 | 1518 | dout(2) << "Booting: " << step << ": opening inotable" << dendl; |
7c673cae FG |
1519 | inotable->set_rank(whoami); |
1520 | inotable->load(gather.new_sub()); | |
1521 | ||
a8e16298 | 1522 | dout(2) << "Booting: " << step << ": opening sessionmap" << dendl; |
7c673cae FG |
1523 | sessionmap.set_rank(whoami); |
1524 | sessionmap.load(gather.new_sub()); | |
1525 | ||
a8e16298 | 1526 | dout(2) << "Booting: " << step << ": opening mds log" << dendl; |
7c673cae FG |
1527 | mdlog->open(gather.new_sub()); |
1528 | ||
3efd9988 | 1529 | if (is_starting()) { |
a8e16298 | 1530 | dout(2) << "Booting: " << step << ": opening purge queue" << dendl; |
3efd9988 FG |
1531 | purge_queue.open(new C_IO_Wrapper(this, gather.new_sub())); |
1532 | } else if (!standby_replaying) { | |
a8e16298 | 1533 | dout(2) << "Booting: " << step << ": opening purge queue (async)" << dendl; |
3efd9988 | 1534 | purge_queue.open(NULL); |
11fdf7f2 TL |
1535 | dout(2) << "Booting: " << step << ": loading open file table (async)" << dendl; |
1536 | mdcache->open_file_table.load(nullptr); | |
3efd9988 FG |
1537 | } |
1538 | ||
7c673cae | 1539 | if (mdsmap->get_tableserver() == whoami) { |
a8e16298 | 1540 | dout(2) << "Booting: " << step << ": opening snap table" << dendl; |
7c673cae FG |
1541 | snapserver->set_rank(whoami); |
1542 | snapserver->load(gather.new_sub()); | |
1543 | } | |
1544 | ||
1545 | gather.activate(); | |
1546 | } | |
1547 | break; | |
1548 | case MDS_BOOT_OPEN_ROOT: | |
1549 | { | |
a8e16298 | 1550 | dout(2) << "Booting: " << step << ": loading/discovering base inodes" << dendl; |
7c673cae FG |
1551 | |
1552 | MDSGatherBuilder gather(g_ceph_context, | |
1553 | new C_MDS_BootStart(this, MDS_BOOT_PREPARE_LOG)); | |
1554 | ||
28e407b8 AA |
1555 | if (is_starting()) { |
1556 | // load mydir frag for the first log segment (creating subtree map) | |
1557 | mdcache->open_mydir_frag(gather.new_sub()); | |
1558 | } else { | |
1559 | mdcache->open_mydir_inode(gather.new_sub()); | |
1560 | } | |
7c673cae | 1561 | |
11fdf7f2 TL |
1562 | mdcache->create_global_snaprealm(); |
1563 | ||
28e407b8 AA |
1564 | if (whoami == mdsmap->get_root()) { // load root inode off disk if we are auth |
1565 | mdcache->open_root_inode(gather.new_sub()); | |
1566 | } else if (is_any_replay()) { | |
1567 | // replay. make up fake root inode to start with | |
1568 | mdcache->create_root_inode(); | |
1569 | } | |
7c673cae FG |
1570 | gather.activate(); |
1571 | } | |
1572 | break; | |
1573 | case MDS_BOOT_PREPARE_LOG: | |
1574 | if (is_any_replay()) { | |
a8e16298 | 1575 | dout(2) << "Booting: " << step << ": replaying mds log" << dendl; |
3efd9988 FG |
1576 | MDSGatherBuilder gather(g_ceph_context, |
1577 | new C_MDS_BootStart(this, MDS_BOOT_REPLAY_DONE)); | |
1578 | ||
1579 | if (!standby_replaying) { | |
a8e16298 | 1580 | dout(2) << "Booting: " << step << ": waiting for purge queue recovered" << dendl; |
3efd9988 FG |
1581 | purge_queue.wait_for_recovery(new C_IO_Wrapper(this, gather.new_sub())); |
1582 | } | |
1583 | ||
1584 | mdlog->replay(gather.new_sub()); | |
1585 | gather.activate(); | |
7c673cae | 1586 | } else { |
a8e16298 | 1587 | dout(2) << "Booting: " << step << ": positioning at end of old mds log" << dendl; |
7c673cae FG |
1588 | mdlog->append(); |
1589 | starting_done(); | |
1590 | } | |
1591 | break; | |
1592 | case MDS_BOOT_REPLAY_DONE: | |
11fdf7f2 | 1593 | ceph_assert(is_any_replay()); |
7c673cae FG |
1594 | |
1595 | // Sessiontable and inotable should be in sync after replay, validate | |
1596 | // that they are consistent. | |
1597 | validate_sessions(); | |
1598 | ||
1599 | replay_done(); | |
1600 | break; | |
1601 | } | |
1602 | } | |
1603 | ||
1604 | void MDSRank::validate_sessions() | |
1605 | { | |
9f95a23c | 1606 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
28e407b8 | 1607 | bool valid = true; |
7c673cae FG |
1608 | |
1609 | // Identify any sessions which have state inconsistent with other, | |
1610 | // after they have been loaded from rados during startup. | |
1611 | // Mitigate bugs like: http://tracker.ceph.com/issues/16842 | |
11fdf7f2 | 1612 | for (const auto &i : sessionmap.get_sessions()) { |
7c673cae FG |
1613 | Session *session = i.second; |
1614 | interval_set<inodeno_t> badones; | |
1615 | if (inotable->intersects_free(session->info.prealloc_inos, &badones)) { | |
28e407b8 AA |
1616 | clog->error() << "client " << *session |
1617 | << "loaded with preallocated inodes that are inconsistent with inotable"; | |
1618 | valid = false; | |
7c673cae FG |
1619 | } |
1620 | } | |
1621 | ||
28e407b8 AA |
1622 | if (!valid) { |
1623 | damaged(); | |
11fdf7f2 | 1624 | ceph_assert(valid); |
7c673cae FG |
1625 | } |
1626 | } | |
1627 | ||
1628 | void MDSRank::starting_done() | |
1629 | { | |
1630 | dout(3) << "starting_done" << dendl; | |
11fdf7f2 | 1631 | ceph_assert(is_starting()); |
7c673cae FG |
1632 | request_state(MDSMap::STATE_ACTIVE); |
1633 | ||
28e407b8 | 1634 | mdlog->start_new_segment(); |
11fdf7f2 TL |
1635 | |
1636 | // sync snaptable cache | |
1637 | snapclient->sync(new C_MDSInternalNoop); | |
7c673cae FG |
1638 | } |
1639 | ||
1640 | ||
1641 | void MDSRank::calc_recovery_set() | |
1642 | { | |
1643 | // initialize gather sets | |
1644 | set<mds_rank_t> rs; | |
1645 | mdsmap->get_recovery_mds_set(rs); | |
1646 | rs.erase(whoami); | |
1647 | mdcache->set_recovery_set(rs); | |
1648 | ||
1649 | dout(1) << " recovery set is " << rs << dendl; | |
1650 | } | |
1651 | ||
1652 | ||
1653 | void MDSRank::replay_start() | |
1654 | { | |
1655 | dout(1) << "replay_start" << dendl; | |
1656 | ||
1657 | if (is_standby_replay()) | |
1658 | standby_replaying = true; | |
1659 | ||
1660 | calc_recovery_set(); | |
1661 | ||
1662 | // Check if we need to wait for a newer OSD map before starting | |
1663 | Context *fin = new C_IO_Wrapper(this, new C_MDS_BootStart(this, MDS_BOOT_INITIAL)); | |
1664 | bool const ready = objecter->wait_for_map( | |
1665 | mdsmap->get_last_failure_osd_epoch(), | |
1666 | fin); | |
1667 | ||
1668 | if (ready) { | |
1669 | delete fin; | |
1670 | boot_start(); | |
1671 | } else { | |
1672 | dout(1) << " waiting for osdmap " << mdsmap->get_last_failure_osd_epoch() | |
1673 | << " (which blacklists prior instance)" << dendl; | |
1674 | } | |
1675 | } | |
1676 | ||
1677 | ||
1678 | class MDSRank::C_MDS_StandbyReplayRestartFinish : public MDSIOContext { | |
1679 | uint64_t old_read_pos; | |
1680 | public: | |
1681 | C_MDS_StandbyReplayRestartFinish(MDSRank *mds_, uint64_t old_read_pos_) : | |
1682 | MDSIOContext(mds_), old_read_pos(old_read_pos_) {} | |
1683 | void finish(int r) override { | |
1684 | mds->_standby_replay_restart_finish(r, old_read_pos); | |
1685 | } | |
91327a77 AA |
1686 | void print(ostream& out) const override { |
1687 | out << "standby_replay_restart"; | |
1688 | } | |
7c673cae FG |
1689 | }; |
1690 | ||
1691 | void MDSRank::_standby_replay_restart_finish(int r, uint64_t old_read_pos) | |
1692 | { | |
1693 | if (old_read_pos < mdlog->get_journaler()->get_trimmed_pos()) { | |
1694 | dout(0) << "standby MDS fell behind active MDS journal's expire_pos, restarting" << dendl; | |
1695 | respawn(); /* we're too far back, and this is easier than | |
1696 | trying to reset everything in the cache, etc */ | |
1697 | } else { | |
1698 | mdlog->standby_trim_segments(); | |
1699 | boot_start(MDS_BOOT_PREPARE_LOG, r); | |
1700 | } | |
1701 | } | |
1702 | ||
3efd9988 FG |
1703 | class MDSRank::C_MDS_StandbyReplayRestart : public MDSInternalContext { |
1704 | public: | |
1705 | explicit C_MDS_StandbyReplayRestart(MDSRank *m) : MDSInternalContext(m) {} | |
1706 | void finish(int r) override { | |
11fdf7f2 | 1707 | ceph_assert(!r); |
3efd9988 FG |
1708 | mds->standby_replay_restart(); |
1709 | } | |
1710 | }; | |
1711 | ||
1712 | void MDSRank::standby_replay_restart() | |
7c673cae FG |
1713 | { |
1714 | if (standby_replaying) { | |
1715 | /* Go around for another pass of replaying in standby */ | |
f64942e4 | 1716 | dout(5) << "Restarting replay as standby-replay" << dendl; |
7c673cae FG |
1717 | mdlog->get_journaler()->reread_head_and_probe( |
1718 | new C_MDS_StandbyReplayRestartFinish( | |
1719 | this, | |
1720 | mdlog->get_journaler()->get_read_pos())); | |
1721 | } else { | |
1722 | /* We are transitioning out of standby: wait for OSD map update | |
1723 | before making final pass */ | |
1724 | dout(1) << "standby_replay_restart (final takeover pass)" << dendl; | |
3efd9988 FG |
1725 | Context *fin = new C_IO_Wrapper(this, new C_MDS_StandbyReplayRestart(this)); |
1726 | bool ready = objecter->wait_for_map(mdsmap->get_last_failure_osd_epoch(), fin); | |
7c673cae FG |
1727 | if (ready) { |
1728 | delete fin; | |
1729 | mdlog->get_journaler()->reread_head_and_probe( | |
1730 | new C_MDS_StandbyReplayRestartFinish( | |
1731 | this, | |
1732 | mdlog->get_journaler()->get_read_pos())); | |
3efd9988 | 1733 | |
11fdf7f2 | 1734 | dout(1) << " opening purge_queue (async)" << dendl; |
3efd9988 | 1735 | purge_queue.open(NULL); |
11fdf7f2 TL |
1736 | dout(1) << " opening open_file_table (async)" << dendl; |
1737 | mdcache->open_file_table.load(nullptr); | |
7c673cae FG |
1738 | } else { |
1739 | dout(1) << " waiting for osdmap " << mdsmap->get_last_failure_osd_epoch() | |
1740 | << " (which blacklists prior instance)" << dendl; | |
1741 | } | |
1742 | } | |
1743 | } | |
1744 | ||
7c673cae FG |
1745 | void MDSRank::replay_done() |
1746 | { | |
f64942e4 AA |
1747 | if (!standby_replaying) { |
1748 | dout(1) << "Finished replaying journal" << dendl; | |
1749 | } else { | |
1750 | dout(5) << "Finished replaying journal as standby-replay" << dendl; | |
1751 | } | |
7c673cae FG |
1752 | |
1753 | if (is_standby_replay()) { | |
1754 | // The replay was done in standby state, and we are still in that state | |
11fdf7f2 | 1755 | ceph_assert(standby_replaying); |
7c673cae | 1756 | dout(10) << "setting replay timer" << dendl; |
11fdf7f2 | 1757 | timer.add_event_after(g_conf()->mds_replay_interval, |
7c673cae FG |
1758 | new C_MDS_StandbyReplayRestart(this)); |
1759 | return; | |
1760 | } else if (standby_replaying) { | |
1761 | // The replay was done in standby state, we have now _left_ that state | |
1762 | dout(10) << " last replay pass was as a standby; making final pass" << dendl; | |
1763 | standby_replaying = false; | |
1764 | standby_replay_restart(); | |
1765 | return; | |
1766 | } else { | |
1767 | // Replay is complete, journal read should be up to date | |
11fdf7f2 TL |
1768 | ceph_assert(mdlog->get_journaler()->get_read_pos() == mdlog->get_journaler()->get_write_pos()); |
1769 | ceph_assert(!is_standby_replay()); | |
7c673cae FG |
1770 | |
1771 | // Reformat and come back here | |
11fdf7f2 | 1772 | if (mdlog->get_journaler()->get_stream_format() < g_conf()->mds_journal_format) { |
f64942e4 | 1773 | dout(4) << "reformatting journal on standby-replay->replay transition" << dendl; |
7c673cae FG |
1774 | mdlog->reopen(new C_MDS_BootStart(this, MDS_BOOT_REPLAY_DONE)); |
1775 | return; | |
1776 | } | |
1777 | } | |
1778 | ||
1779 | dout(1) << "making mds journal writeable" << dendl; | |
1780 | mdlog->get_journaler()->set_writeable(); | |
1781 | mdlog->get_journaler()->trim_tail(); | |
1782 | ||
11fdf7f2 TL |
1783 | if (mdsmap->get_tableserver() == whoami && |
1784 | snapserver->upgrade_format()) { | |
1785 | dout(1) << "upgrading snaptable format" << dendl; | |
1786 | snapserver->save(new C_MDSInternalNoop); | |
1787 | } | |
1788 | ||
1789 | if (g_conf()->mds_wipe_sessions) { | |
7c673cae FG |
1790 | dout(1) << "wiping out client sessions" << dendl; |
1791 | sessionmap.wipe(); | |
1792 | sessionmap.save(new C_MDSInternalNoop); | |
1793 | } | |
11fdf7f2 | 1794 | if (g_conf()->mds_wipe_ino_prealloc) { |
7c673cae FG |
1795 | dout(1) << "wiping out ino prealloc from sessions" << dendl; |
1796 | sessionmap.wipe_ino_prealloc(); | |
1797 | sessionmap.save(new C_MDSInternalNoop); | |
1798 | } | |
11fdf7f2 TL |
1799 | if (g_conf()->mds_skip_ino) { |
1800 | inodeno_t i = g_conf()->mds_skip_ino; | |
7c673cae FG |
1801 | dout(1) << "skipping " << i << " inodes" << dendl; |
1802 | inotable->skip_inos(i); | |
1803 | inotable->save(new C_MDSInternalNoop); | |
1804 | } | |
1805 | ||
1806 | if (mdsmap->get_num_in_mds() == 1 && | |
1807 | mdsmap->get_num_failed_mds() == 0) { // just me! | |
1808 | dout(2) << "i am alone, moving to state reconnect" << dendl; | |
1809 | request_state(MDSMap::STATE_RECONNECT); | |
11fdf7f2 TL |
1810 | // sync snaptable cache |
1811 | snapclient->sync(new C_MDSInternalNoop); | |
7c673cae FG |
1812 | } else { |
1813 | dout(2) << "i am not alone, moving to state resolve" << dendl; | |
1814 | request_state(MDSMap::STATE_RESOLVE); | |
1815 | } | |
1816 | } | |
1817 | ||
1818 | void MDSRank::reopen_log() | |
1819 | { | |
1820 | dout(1) << "reopen_log" << dendl; | |
1821 | mdcache->rollback_uncommitted_fragments(); | |
1822 | } | |
1823 | ||
7c673cae FG |
1824 | void MDSRank::resolve_start() |
1825 | { | |
1826 | dout(1) << "resolve_start" << dendl; | |
1827 | ||
1828 | reopen_log(); | |
1829 | ||
1830 | mdcache->resolve_start(new C_MDS_VoidFn(this, &MDSRank::resolve_done)); | |
1831 | finish_contexts(g_ceph_context, waiting_for_resolve); | |
1832 | } | |
11fdf7f2 | 1833 | |
7c673cae FG |
1834 | void MDSRank::resolve_done() |
1835 | { | |
1836 | dout(1) << "resolve_done" << dendl; | |
1837 | request_state(MDSMap::STATE_RECONNECT); | |
11fdf7f2 TL |
1838 | // sync snaptable cache |
1839 | snapclient->sync(new C_MDSInternalNoop); | |
7c673cae FG |
1840 | } |
1841 | ||
1842 | void MDSRank::reconnect_start() | |
1843 | { | |
1844 | dout(1) << "reconnect_start" << dendl; | |
1845 | ||
1846 | if (last_state == MDSMap::STATE_REPLAY) { | |
1847 | reopen_log(); | |
1848 | } | |
1849 | ||
31f18b77 FG |
1850 | // Drop any blacklisted clients from the SessionMap before going |
1851 | // into reconnect, so that we don't wait for them. | |
1852 | objecter->enable_blacklist_events(); | |
1853 | std::set<entity_addr_t> blacklist; | |
1854 | epoch_t epoch = 0; | |
11fdf7f2 | 1855 | objecter->with_osdmap([&blacklist, &epoch](const OSDMap& o) { |
31f18b77 FG |
1856 | o.get_blacklist(&blacklist); |
1857 | epoch = o.get_epoch(); | |
1858 | }); | |
1859 | auto killed = server->apply_blacklist(blacklist); | |
1860 | dout(4) << "reconnect_start: killed " << killed << " blacklisted sessions (" | |
1861 | << blacklist.size() << " blacklist entries, " | |
1862 | << sessionmap.get_sessions().size() << ")" << dendl; | |
1863 | if (killed) { | |
1864 | set_osd_epoch_barrier(epoch); | |
1865 | } | |
1866 | ||
7c673cae FG |
1867 | server->reconnect_clients(new C_MDS_VoidFn(this, &MDSRank::reconnect_done)); |
1868 | finish_contexts(g_ceph_context, waiting_for_reconnect); | |
1869 | } | |
1870 | void MDSRank::reconnect_done() | |
1871 | { | |
1872 | dout(1) << "reconnect_done" << dendl; | |
1873 | request_state(MDSMap::STATE_REJOIN); // move to rejoin state | |
1874 | } | |
1875 | ||
1876 | void MDSRank::rejoin_joint_start() | |
1877 | { | |
1878 | dout(1) << "rejoin_joint_start" << dendl; | |
1879 | mdcache->rejoin_send_rejoins(); | |
1880 | } | |
1881 | void MDSRank::rejoin_start() | |
1882 | { | |
1883 | dout(1) << "rejoin_start" << dendl; | |
1884 | mdcache->rejoin_start(new C_MDS_VoidFn(this, &MDSRank::rejoin_done)); | |
a8e16298 | 1885 | finish_contexts(g_ceph_context, waiting_for_rejoin); |
7c673cae FG |
1886 | } |
1887 | void MDSRank::rejoin_done() | |
1888 | { | |
1889 | dout(1) << "rejoin_done" << dendl; | |
1890 | mdcache->show_subtrees(); | |
1891 | mdcache->show_cache(); | |
1892 | ||
1893 | // funny case: is our cache empty? no subtrees? | |
1894 | if (!mdcache->is_subtrees()) { | |
1895 | if (whoami == 0) { | |
1896 | // The root should always have a subtree! | |
1897 | clog->error() << "No subtrees found for root MDS rank!"; | |
1898 | damaged(); | |
11fdf7f2 | 1899 | ceph_assert(mdcache->is_subtrees()); |
7c673cae FG |
1900 | } else { |
1901 | dout(1) << " empty cache, no subtrees, leaving cluster" << dendl; | |
1902 | request_state(MDSMap::STATE_STOPPED); | |
1903 | } | |
1904 | return; | |
1905 | } | |
1906 | ||
11fdf7f2 | 1907 | if (replay_queue.empty() && !server->get_num_pending_reclaim()) { |
7c673cae | 1908 | request_state(MDSMap::STATE_ACTIVE); |
11fdf7f2 TL |
1909 | } else { |
1910 | replaying_requests_done = replay_queue.empty(); | |
7c673cae | 1911 | request_state(MDSMap::STATE_CLIENTREPLAY); |
11fdf7f2 | 1912 | } |
7c673cae FG |
1913 | } |
1914 | ||
1915 | void MDSRank::clientreplay_start() | |
1916 | { | |
1917 | dout(1) << "clientreplay_start" << dendl; | |
1918 | finish_contexts(g_ceph_context, waiting_for_replay); // kick waiters | |
1919 | mdcache->start_files_to_recover(); | |
1920 | queue_one_replay(); | |
1921 | } | |
1922 | ||
1923 | bool MDSRank::queue_one_replay() | |
1924 | { | |
11fdf7f2 TL |
1925 | if (!replay_queue.empty()) { |
1926 | queue_waiter(replay_queue.front()); | |
1927 | replay_queue.pop_front(); | |
1928 | return true; | |
1929 | } | |
1930 | if (!replaying_requests_done) { | |
1931 | replaying_requests_done = true; | |
1932 | mdlog->flush(); | |
1933 | } | |
1934 | maybe_clientreplay_done(); | |
1935 | return false; | |
1936 | } | |
1937 | ||
1938 | void MDSRank::maybe_clientreplay_done() | |
1939 | { | |
1940 | if (is_clientreplay() && get_want_state() == MDSMap::STATE_CLIENTREPLAY) { | |
1941 | ||
1942 | // don't go to active if there are session waiting for being reclaimed | |
1943 | if (replaying_requests_done && !server->get_num_pending_reclaim()) { | |
1944 | mdlog->wait_for_safe(new C_MDS_VoidFn(this, &MDSRank::clientreplay_done)); | |
1945 | return; | |
1946 | } | |
1947 | ||
1948 | dout(1) << " still have " << replay_queue.size() + (int)!replaying_requests_done | |
1949 | << " requests need to be replayed, " << server->get_num_pending_reclaim() | |
1950 | << " sessions need to be reclaimed" << dendl; | |
7c673cae | 1951 | } |
7c673cae FG |
1952 | } |
1953 | ||
1954 | void MDSRank::clientreplay_done() | |
1955 | { | |
1956 | dout(1) << "clientreplay_done" << dendl; | |
1957 | request_state(MDSMap::STATE_ACTIVE); | |
1958 | } | |
1959 | ||
1960 | void MDSRank::active_start() | |
1961 | { | |
1962 | dout(1) << "active_start" << dendl; | |
1963 | ||
28e407b8 AA |
1964 | if (last_state == MDSMap::STATE_CREATING || |
1965 | last_state == MDSMap::STATE_STARTING) { | |
7c673cae FG |
1966 | mdcache->open_root(); |
1967 | } | |
1968 | ||
1969 | mdcache->clean_open_file_lists(); | |
1970 | mdcache->export_remaining_imported_caps(); | |
1971 | finish_contexts(g_ceph_context, waiting_for_replay); // kick waiters | |
1972 | mdcache->start_files_to_recover(); | |
1973 | ||
1974 | mdcache->reissue_all_caps(); | |
7c673cae FG |
1975 | |
1976 | finish_contexts(g_ceph_context, waiting_for_active); // kick waiters | |
1977 | } | |
1978 | ||
1979 | void MDSRank::recovery_done(int oldstate) | |
1980 | { | |
1981 | dout(1) << "recovery_done -- successful recovery!" << dendl; | |
11fdf7f2 | 1982 | ceph_assert(is_clientreplay() || is_active()); |
7c673cae FG |
1983 | |
1984 | if (oldstate == MDSMap::STATE_CREATING) | |
1985 | return; | |
1986 | ||
1987 | mdcache->start_recovered_truncates(); | |
9f95a23c | 1988 | mdcache->start_purge_inodes(); |
7c673cae FG |
1989 | mdcache->do_file_recover(); |
1990 | ||
1991 | // tell connected clients | |
1992 | //bcast_mds_map(); // not anymore, they get this from the monitor | |
1993 | ||
1994 | mdcache->populate_mydir(); | |
1995 | } | |
1996 | ||
1997 | void MDSRank::creating_done() | |
1998 | { | |
1999 | dout(1)<< "creating_done" << dendl; | |
2000 | request_state(MDSMap::STATE_ACTIVE); | |
11fdf7f2 TL |
2001 | // sync snaptable cache |
2002 | snapclient->sync(new C_MDSInternalNoop); | |
7c673cae FG |
2003 | } |
2004 | ||
2005 | void MDSRank::boot_create() | |
2006 | { | |
2007 | dout(3) << "boot_create" << dendl; | |
2008 | ||
2009 | MDSGatherBuilder fin(g_ceph_context, new C_MDS_VoidFn(this, &MDSRank::creating_done)); | |
2010 | ||
2011 | mdcache->init_layouts(); | |
2012 | ||
7c673cae FG |
2013 | inotable->set_rank(whoami); |
2014 | sessionmap.set_rank(whoami); | |
2015 | ||
2016 | // start with a fresh journal | |
2017 | dout(10) << "boot_create creating fresh journal" << dendl; | |
2018 | mdlog->create(fin.new_sub()); | |
2019 | ||
2020 | // open new journal segment, but do not journal subtree map (yet) | |
2021 | mdlog->prepare_new_segment(); | |
2022 | ||
2023 | if (whoami == mdsmap->get_root()) { | |
2024 | dout(3) << "boot_create creating fresh hierarchy" << dendl; | |
2025 | mdcache->create_empty_hierarchy(fin.get()); | |
2026 | } | |
2027 | ||
2028 | dout(3) << "boot_create creating mydir hierarchy" << dendl; | |
2029 | mdcache->create_mydir_hierarchy(fin.get()); | |
2030 | ||
11fdf7f2 TL |
2031 | dout(3) << "boot_create creating global snaprealm" << dendl; |
2032 | mdcache->create_global_snaprealm(); | |
2033 | ||
7c673cae FG |
2034 | // fixme: fake out inotable (reset, pretend loaded) |
2035 | dout(10) << "boot_create creating fresh inotable table" << dendl; | |
2036 | inotable->reset(); | |
2037 | inotable->save(fin.new_sub()); | |
2038 | ||
2039 | // write empty sessionmap | |
2040 | sessionmap.save(fin.new_sub()); | |
2041 | ||
2042 | // Create empty purge queue | |
2043 | purge_queue.create(new C_IO_Wrapper(this, fin.new_sub())); | |
2044 | ||
2045 | // initialize tables | |
2046 | if (mdsmap->get_tableserver() == whoami) { | |
2047 | dout(10) << "boot_create creating fresh snaptable" << dendl; | |
11fdf7f2 | 2048 | snapserver->set_rank(whoami); |
7c673cae FG |
2049 | snapserver->reset(); |
2050 | snapserver->save(fin.new_sub()); | |
2051 | } | |
2052 | ||
11fdf7f2 | 2053 | ceph_assert(g_conf()->mds_kill_create_at != 1); |
7c673cae FG |
2054 | |
2055 | // ok now journal it | |
2056 | mdlog->journal_segment_subtree_map(fin.new_sub()); | |
2057 | mdlog->flush(); | |
2058 | ||
31f18b77 FG |
2059 | // Usually we do this during reconnect, but creation skips that. |
2060 | objecter->enable_blacklist_events(); | |
2061 | ||
7c673cae FG |
2062 | fin.activate(); |
2063 | } | |
2064 | ||
2065 | void MDSRank::stopping_start() | |
2066 | { | |
a8e16298 | 2067 | dout(2) << "Stopping..." << dendl; |
7c673cae FG |
2068 | |
2069 | if (mdsmap->get_num_in_mds() == 1 && !sessionmap.empty()) { | |
11fdf7f2 TL |
2070 | std::vector<Session*> victims; |
2071 | const auto& sessions = sessionmap.get_sessions(); | |
2072 | for (const auto& p : sessions) { | |
2073 | if (!p.first.is_client()) { | |
2074 | continue; | |
2075 | } | |
2076 | ||
2077 | Session *s = p.second; | |
2078 | victims.push_back(s); | |
2079 | } | |
2080 | ||
2081 | dout(20) << __func__ << " matched " << victims.size() << " sessions" << dendl; | |
2082 | ceph_assert(!victims.empty()); | |
2083 | ||
2084 | C_GatherBuilder gather(g_ceph_context, new C_MDSInternalNoop); | |
2085 | for (const auto &s : victims) { | |
2086 | std::stringstream ss; | |
2087 | evict_client(s->get_client().v, false, | |
2088 | g_conf()->mds_session_blacklist_on_evict, ss, gather.new_sub()); | |
2089 | } | |
2090 | gather.activate(); | |
7c673cae FG |
2091 | } |
2092 | ||
2093 | mdcache->shutdown_start(); | |
2094 | } | |
2095 | ||
2096 | void MDSRank::stopping_done() | |
2097 | { | |
a8e16298 | 2098 | dout(2) << "Finished stopping..." << dendl; |
7c673cae FG |
2099 | |
2100 | // tell monitor we shut down cleanly. | |
2101 | request_state(MDSMap::STATE_STOPPED); | |
2102 | } | |
2103 | ||
2104 | void MDSRankDispatcher::handle_mds_map( | |
9f95a23c | 2105 | const cref_t<MMDSMap> &m, |
11fdf7f2 | 2106 | const MDSMap &oldmap) |
7c673cae FG |
2107 | { |
2108 | // I am only to be passed MDSMaps in which I hold a rank | |
11fdf7f2 | 2109 | ceph_assert(whoami != MDS_RANK_NONE); |
7c673cae FG |
2110 | |
2111 | MDSMap::DaemonState oldstate = state; | |
2112 | mds_gid_t mds_gid = mds_gid_t(monc->get_global_id()); | |
2113 | state = mdsmap->get_state_gid(mds_gid); | |
2114 | if (state != oldstate) { | |
2115 | last_state = oldstate; | |
2116 | incarnation = mdsmap->get_inc_gid(mds_gid); | |
2117 | } | |
2118 | ||
2119 | version_t epoch = m->get_epoch(); | |
2120 | ||
2121 | // note source's map version | |
2122 | if (m->get_source().is_mds() && | |
2123 | peer_mdsmap_epoch[mds_rank_t(m->get_source().num())] < epoch) { | |
2124 | dout(15) << " peer " << m->get_source() | |
2125 | << " has mdsmap epoch >= " << epoch | |
2126 | << dendl; | |
2127 | peer_mdsmap_epoch[mds_rank_t(m->get_source().num())] = epoch; | |
2128 | } | |
2129 | ||
2130 | // Validate state transitions while I hold a rank | |
2131 | if (!MDSMap::state_transition_valid(oldstate, state)) { | |
2132 | derr << "Invalid state transition " << ceph_mds_state_name(oldstate) | |
2133 | << "->" << ceph_mds_state_name(state) << dendl; | |
2134 | respawn(); | |
2135 | } | |
2136 | ||
2137 | if (oldstate != state) { | |
2138 | // update messenger. | |
2139 | if (state == MDSMap::STATE_STANDBY_REPLAY) { | |
2140 | dout(1) << "handle_mds_map i am now mds." << mds_gid << "." << incarnation | |
2141 | << " replaying mds." << whoami << "." << incarnation << dendl; | |
2142 | messenger->set_myname(entity_name_t::MDS(mds_gid)); | |
2143 | } else { | |
2144 | dout(1) << "handle_mds_map i am now mds." << whoami << "." << incarnation << dendl; | |
2145 | messenger->set_myname(entity_name_t::MDS(whoami)); | |
2146 | } | |
2147 | } | |
2148 | ||
2149 | // tell objecter my incarnation | |
2150 | if (objecter->get_client_incarnation() != incarnation) | |
2151 | objecter->set_client_incarnation(incarnation); | |
2152 | ||
9f95a23c TL |
2153 | if (mdsmap->get_min_compat_client() < ceph_release_t::max && |
2154 | oldmap.get_min_compat_client() != mdsmap->get_min_compat_client()) | |
11fdf7f2 TL |
2155 | server->update_required_client_features(); |
2156 | ||
7c673cae | 2157 | // for debug |
11fdf7f2 | 2158 | if (g_conf()->mds_dump_cache_on_map) |
7c673cae FG |
2159 | mdcache->dump_cache(); |
2160 | ||
1adf2230 AA |
2161 | cluster_degraded = mdsmap->is_degraded(); |
2162 | ||
2163 | // mdsmap and oldmap can be discontinuous. failover might happen in the missing mdsmap. | |
2164 | // the 'restart' set tracks ranks that have restarted since the old mdsmap | |
2165 | set<mds_rank_t> restart; | |
2166 | // replaying mds does not communicate with other ranks | |
2167 | if (state >= MDSMap::STATE_RESOLVE) { | |
2168 | // did someone fail? | |
2169 | // new down? | |
2170 | set<mds_rank_t> olddown, down; | |
11fdf7f2 | 2171 | oldmap.get_down_mds_set(&olddown); |
1adf2230 AA |
2172 | mdsmap->get_down_mds_set(&down); |
2173 | for (const auto& r : down) { | |
11fdf7f2 TL |
2174 | if (oldmap.have_inst(r) && olddown.count(r) == 0) { |
2175 | messenger->mark_down_addrs(oldmap.get_addrs(r)); | |
1adf2230 AA |
2176 | handle_mds_failure(r); |
2177 | } | |
2178 | } | |
2179 | ||
2180 | // did someone fail? | |
2181 | // did their addr/inst change? | |
2182 | set<mds_rank_t> up; | |
2183 | mdsmap->get_up_mds_set(up); | |
2184 | for (const auto& r : up) { | |
2185 | auto& info = mdsmap->get_info(r); | |
11fdf7f2 TL |
2186 | if (oldmap.have_inst(r)) { |
2187 | auto& oldinfo = oldmap.get_info(r); | |
1adf2230 | 2188 | if (info.inc != oldinfo.inc) { |
11fdf7f2 | 2189 | messenger->mark_down_addrs(oldinfo.get_addrs()); |
1adf2230 AA |
2190 | if (info.state == MDSMap::STATE_REPLAY || |
2191 | info.state == MDSMap::STATE_RESOLVE) { | |
2192 | restart.insert(r); | |
2193 | handle_mds_failure(r); | |
2194 | } else { | |
11fdf7f2 | 2195 | ceph_assert(info.state == MDSMap::STATE_STARTING || |
1adf2230 AA |
2196 | info.state == MDSMap::STATE_ACTIVE); |
2197 | // -> stopped (missing) -> starting -> active | |
2198 | restart.insert(r); | |
2199 | mdcache->migrator->handle_mds_failure_or_stop(r); | |
11fdf7f2 TL |
2200 | if (mdsmap->get_tableserver() == whoami) |
2201 | snapserver->handle_mds_failure_or_stop(r); | |
1adf2230 AA |
2202 | } |
2203 | } | |
2204 | } else { | |
2205 | if (info.state == MDSMap::STATE_REPLAY || | |
2206 | info.state == MDSMap::STATE_RESOLVE) { | |
2207 | // -> starting/creating (missing) -> active (missing) -> replay -> resolve | |
2208 | restart.insert(r); | |
2209 | handle_mds_failure(r); | |
2210 | } else { | |
11fdf7f2 | 2211 | ceph_assert(info.state == MDSMap::STATE_CREATING || |
1adf2230 AA |
2212 | info.state == MDSMap::STATE_STARTING || |
2213 | info.state == MDSMap::STATE_ACTIVE); | |
2214 | } | |
2215 | } | |
2216 | } | |
2217 | } | |
2218 | ||
7c673cae FG |
2219 | // did it change? |
2220 | if (oldstate != state) { | |
2221 | dout(1) << "handle_mds_map state change " | |
2222 | << ceph_mds_state_name(oldstate) << " --> " | |
2223 | << ceph_mds_state_name(state) << dendl; | |
11fdf7f2 | 2224 | beacon.set_want_state(*mdsmap, state); |
7c673cae FG |
2225 | |
2226 | if (oldstate == MDSMap::STATE_STANDBY_REPLAY) { | |
2227 | dout(10) << "Monitor activated us! Deactivating replay loop" << dendl; | |
2228 | assert (state == MDSMap::STATE_REPLAY); | |
2229 | } else { | |
2230 | // did i just recover? | |
2231 | if ((is_active() || is_clientreplay()) && | |
2232 | (oldstate == MDSMap::STATE_CREATING || | |
2233 | oldstate == MDSMap::STATE_REJOIN || | |
2234 | oldstate == MDSMap::STATE_RECONNECT)) | |
2235 | recovery_done(oldstate); | |
2236 | ||
2237 | if (is_active()) { | |
2238 | active_start(); | |
2239 | } else if (is_any_replay()) { | |
2240 | replay_start(); | |
2241 | } else if (is_resolve()) { | |
2242 | resolve_start(); | |
2243 | } else if (is_reconnect()) { | |
2244 | reconnect_start(); | |
2245 | } else if (is_rejoin()) { | |
2246 | rejoin_start(); | |
2247 | } else if (is_clientreplay()) { | |
2248 | clientreplay_start(); | |
2249 | } else if (is_creating()) { | |
2250 | boot_create(); | |
2251 | } else if (is_starting()) { | |
2252 | boot_start(); | |
2253 | } else if (is_stopping()) { | |
11fdf7f2 | 2254 | ceph_assert(oldstate == MDSMap::STATE_ACTIVE); |
7c673cae FG |
2255 | stopping_start(); |
2256 | } | |
2257 | } | |
2258 | } | |
2259 | ||
2260 | // RESOLVE | |
2261 | // is someone else newly resolving? | |
1adf2230 | 2262 | if (state >= MDSMap::STATE_RESOLVE) { |
11fdf7f2 TL |
2263 | // recover snaptable |
2264 | if (mdsmap->get_tableserver() == whoami) { | |
2265 | if (oldstate < MDSMap::STATE_RESOLVE) { | |
2266 | set<mds_rank_t> s; | |
2267 | mdsmap->get_mds_set_lower_bound(s, MDSMap::STATE_RESOLVE); | |
2268 | snapserver->finish_recovery(s); | |
2269 | } else { | |
2270 | set<mds_rank_t> old_set, new_set; | |
2271 | oldmap.get_mds_set_lower_bound(old_set, MDSMap::STATE_RESOLVE); | |
2272 | mdsmap->get_mds_set_lower_bound(new_set, MDSMap::STATE_RESOLVE); | |
2273 | for (const auto& r : new_set) { | |
2274 | if (r == whoami) | |
2275 | continue; // not me | |
2276 | if (!old_set.count(r) || restart.count(r)) { // newly so? | |
2277 | snapserver->handle_mds_recovery(r); | |
2278 | } | |
2279 | } | |
2280 | } | |
2281 | } | |
2282 | ||
2283 | if ((!oldmap.is_resolving() || !restart.empty()) && mdsmap->is_resolving()) { | |
7c673cae FG |
2284 | set<mds_rank_t> resolve; |
2285 | mdsmap->get_mds_set(resolve, MDSMap::STATE_RESOLVE); | |
2286 | dout(10) << " resolve set is " << resolve << dendl; | |
2287 | calc_recovery_set(); | |
2288 | mdcache->send_resolves(); | |
2289 | } | |
2290 | } | |
2291 | ||
2292 | // REJOIN | |
2293 | // is everybody finally rejoining? | |
1adf2230 | 2294 | if (state >= MDSMap::STATE_REJOIN) { |
7c673cae | 2295 | // did we start? |
11fdf7f2 | 2296 | if (!oldmap.is_rejoining() && mdsmap->is_rejoining()) |
7c673cae FG |
2297 | rejoin_joint_start(); |
2298 | ||
2299 | // did we finish? | |
11fdf7f2 TL |
2300 | if (g_conf()->mds_dump_cache_after_rejoin && |
2301 | oldmap.is_rejoining() && !mdsmap->is_rejoining()) | |
7c673cae FG |
2302 | mdcache->dump_cache(); // for DEBUG only |
2303 | ||
d2e6a577 FG |
2304 | if (oldstate >= MDSMap::STATE_REJOIN || |
2305 | oldstate == MDSMap::STATE_STARTING) { | |
7c673cae FG |
2306 | // ACTIVE|CLIENTREPLAY|REJOIN => we can discover from them. |
2307 | set<mds_rank_t> olddis, dis; | |
11fdf7f2 | 2308 | oldmap.get_mds_set_lower_bound(olddis, MDSMap::STATE_REJOIN); |
1adf2230 AA |
2309 | mdsmap->get_mds_set_lower_bound(dis, MDSMap::STATE_REJOIN); |
2310 | for (const auto& r : dis) { | |
2311 | if (r == whoami) | |
2312 | continue; // not me | |
2313 | if (!olddis.count(r) || restart.count(r)) { // newly so? | |
2314 | mdcache->kick_discovers(r); | |
2315 | mdcache->kick_open_ino_peers(r); | |
7c673cae | 2316 | } |
1adf2230 | 2317 | } |
7c673cae FG |
2318 | } |
2319 | } | |
2320 | ||
11fdf7f2 | 2321 | if (oldmap.is_degraded() && !cluster_degraded && state >= MDSMap::STATE_ACTIVE) { |
7c673cae FG |
2322 | dout(1) << "cluster recovered." << dendl; |
2323 | auto it = waiting_for_active_peer.find(MDS_RANK_NONE); | |
2324 | if (it != waiting_for_active_peer.end()) { | |
2325 | queue_waiters(it->second); | |
2326 | waiting_for_active_peer.erase(it); | |
2327 | } | |
2328 | } | |
2329 | ||
2330 | // did someone go active? | |
1adf2230 AA |
2331 | if (state >= MDSMap::STATE_CLIENTREPLAY && |
2332 | oldstate >= MDSMap::STATE_CLIENTREPLAY) { | |
7c673cae | 2333 | set<mds_rank_t> oldactive, active; |
11fdf7f2 | 2334 | oldmap.get_mds_set_lower_bound(oldactive, MDSMap::STATE_CLIENTREPLAY); |
1adf2230 AA |
2335 | mdsmap->get_mds_set_lower_bound(active, MDSMap::STATE_CLIENTREPLAY); |
2336 | for (const auto& r : active) { | |
2337 | if (r == whoami) | |
2338 | continue; // not me | |
2339 | if (!oldactive.count(r) || restart.count(r)) // newly so? | |
2340 | handle_mds_recovery(r); | |
7c673cae FG |
2341 | } |
2342 | } | |
2343 | ||
11fdf7f2 | 2344 | if (is_clientreplay() || is_active() || is_stopping()) { |
7c673cae FG |
2345 | // did anyone stop? |
2346 | set<mds_rank_t> oldstopped, stopped; | |
11fdf7f2 | 2347 | oldmap.get_stopped_mds_set(oldstopped); |
7c673cae | 2348 | mdsmap->get_stopped_mds_set(stopped); |
1adf2230 | 2349 | for (const auto& r : stopped) |
11fdf7f2 | 2350 | if (oldstopped.count(r) == 0) { // newly so? |
1adf2230 | 2351 | mdcache->migrator->handle_mds_failure_or_stop(r); |
11fdf7f2 TL |
2352 | if (mdsmap->get_tableserver() == whoami) |
2353 | snapserver->handle_mds_failure_or_stop(r); | |
2354 | } | |
7c673cae FG |
2355 | } |
2356 | ||
2357 | { | |
11fdf7f2 | 2358 | map<epoch_t,MDSContext::vec >::iterator p = waiting_for_mdsmap.begin(); |
7c673cae | 2359 | while (p != waiting_for_mdsmap.end() && p->first <= mdsmap->get_epoch()) { |
11fdf7f2 | 2360 | MDSContext::vec ls; |
7c673cae FG |
2361 | ls.swap(p->second); |
2362 | waiting_for_mdsmap.erase(p++); | |
91327a77 | 2363 | queue_waiters(ls); |
7c673cae FG |
2364 | } |
2365 | } | |
2366 | ||
2367 | if (is_active()) { | |
2368 | // Before going active, set OSD epoch barrier to latest (so that | |
2369 | // we don't risk handing out caps to clients with old OSD maps that | |
2370 | // might not include barriers from the previous incarnation of this MDS) | |
2371 | set_osd_epoch_barrier(objecter->with_osdmap( | |
2372 | std::mem_fn(&OSDMap::get_epoch))); | |
7c673cae | 2373 | |
11fdf7f2 TL |
2374 | /* Now check if we should hint to the OSD that a read may follow */ |
2375 | if (mdsmap->has_standby_replay(whoami)) | |
2376 | mdlog->set_write_iohint(0); | |
2377 | else | |
2378 | mdlog->set_write_iohint(CEPH_OSD_OP_FLAG_FADVISE_DONTNEED); | |
7c673cae FG |
2379 | } |
2380 | ||
11fdf7f2 | 2381 | if (oldmap.get_max_mds() != mdsmap->get_max_mds()) { |
7c673cae FG |
2382 | purge_queue.update_op_limit(*mdsmap); |
2383 | } | |
eafe8130 | 2384 | |
9f95a23c TL |
2385 | if (mdsmap->get_inline_data_enabled() && !oldmap.get_inline_data_enabled()) |
2386 | dout(0) << "WARNING: inline_data support has been deprecated and will be removed in a future release" << dendl; | |
2387 | ||
92f5a8d4 TL |
2388 | if (scrubstack->is_scrubbing()) { |
2389 | if (mdsmap->get_max_mds() > 1) { | |
2390 | auto c = new C_MDSInternalNoop; | |
2391 | scrubstack->scrub_abort(c); | |
2392 | } | |
2393 | } | |
eafe8130 | 2394 | mdcache->handle_mdsmap(*mdsmap); |
7c673cae FG |
2395 | } |
2396 | ||
2397 | void MDSRank::handle_mds_recovery(mds_rank_t who) | |
2398 | { | |
2399 | dout(5) << "handle_mds_recovery mds." << who << dendl; | |
2400 | ||
2401 | mdcache->handle_mds_recovery(who); | |
2402 | ||
7c673cae FG |
2403 | queue_waiters(waiting_for_active_peer[who]); |
2404 | waiting_for_active_peer.erase(who); | |
2405 | } | |
2406 | ||
2407 | void MDSRank::handle_mds_failure(mds_rank_t who) | |
2408 | { | |
2409 | if (who == whoami) { | |
2410 | dout(5) << "handle_mds_failure for myself; not doing anything" << dendl; | |
2411 | return; | |
2412 | } | |
2413 | dout(5) << "handle_mds_failure mds." << who << dendl; | |
2414 | ||
2415 | mdcache->handle_mds_failure(who); | |
2416 | ||
11fdf7f2 TL |
2417 | if (mdsmap->get_tableserver() == whoami) |
2418 | snapserver->handle_mds_failure_or_stop(who); | |
2419 | ||
7c673cae FG |
2420 | snapclient->handle_mds_failure(who); |
2421 | } | |
2422 | ||
9f95a23c TL |
2423 | void MDSRankDispatcher::handle_asok_command( |
2424 | std::string_view command, | |
2425 | const cmdmap_t& cmdmap, | |
2426 | Formatter *f, | |
2427 | const bufferlist &inbl, | |
2428 | std::function<void(int,const std::string&,bufferlist&)> on_finish) | |
7c673cae | 2429 | { |
9f95a23c TL |
2430 | int r = 0; |
2431 | stringstream ss; | |
2432 | bufferlist outbl; | |
7c673cae | 2433 | if (command == "dump_ops_in_flight" || |
9f95a23c | 2434 | command == "ops") { |
7c673cae | 2435 | if (!op_tracker.dump_ops_in_flight(f)) { |
9f95a23c | 2436 | ss << "op_tracker disabled; set mds_enable_op_tracker=true to enable"; |
7c673cae FG |
2437 | } |
2438 | } else if (command == "dump_blocked_ops") { | |
2439 | if (!op_tracker.dump_ops_in_flight(f, true)) { | |
9f95a23c | 2440 | ss << "op_tracker disabled; set mds_enable_op_tracker=true to enable"; |
7c673cae FG |
2441 | } |
2442 | } else if (command == "dump_historic_ops") { | |
2443 | if (!op_tracker.dump_historic_ops(f)) { | |
9f95a23c | 2444 | ss << "op_tracker disabled; set mds_enable_op_tracker=true to enable"; |
7c673cae FG |
2445 | } |
2446 | } else if (command == "dump_historic_ops_by_duration") { | |
2447 | if (!op_tracker.dump_historic_ops(f, true)) { | |
9f95a23c | 2448 | ss << "op_tracker disabled; set mds_enable_op_tracker=true to enable"; |
7c673cae FG |
2449 | } |
2450 | } else if (command == "osdmap barrier") { | |
2451 | int64_t target_epoch = 0; | |
9f95a23c | 2452 | bool got_val = cmd_getval(cmdmap, "target_epoch", target_epoch); |
7c673cae FG |
2453 | |
2454 | if (!got_val) { | |
2455 | ss << "no target epoch given"; | |
9f95a23c TL |
2456 | r = -EINVAL; |
2457 | goto out; | |
2458 | } | |
2459 | { | |
2460 | std::lock_guard l(mds_lock); | |
2461 | set_osd_epoch_barrier(target_epoch); | |
7c673cae | 2462 | } |
7c673cae FG |
2463 | C_SaferCond cond; |
2464 | bool already_got = objecter->wait_for_map(target_epoch, &cond); | |
2465 | if (!already_got) { | |
2466 | dout(4) << __func__ << ": waiting for OSD epoch " << target_epoch << dendl; | |
2467 | cond.wait(); | |
2468 | } | |
9f95a23c TL |
2469 | } else if (command == "session ls" || |
2470 | command == "client ls") { | |
11fdf7f2 | 2471 | std::lock_guard l(mds_lock); |
9f95a23c TL |
2472 | std::vector<std::string> filter_args; |
2473 | cmd_getval(cmdmap, "filters", filter_args); | |
2474 | SessionFilter filter; | |
2475 | r = filter.parse(filter_args, &ss); | |
2476 | if (r != 0) { | |
2477 | goto out; | |
2478 | } | |
2479 | dump_sessions(filter, f); | |
2480 | } else if (command == "session evict" || | |
2481 | command == "client evict") { | |
2482 | std::lock_guard l(mds_lock); | |
2483 | std::vector<std::string> filter_args; | |
2484 | cmd_getval(cmdmap, "filters", filter_args); | |
7c673cae | 2485 | |
9f95a23c TL |
2486 | SessionFilter filter; |
2487 | r = filter.parse(filter_args, &ss); | |
2488 | if (r != 0) { | |
2489 | r = -EINVAL; | |
2490 | goto out; | |
2491 | } | |
2492 | evict_clients(filter, on_finish); | |
2493 | return; | |
2494 | } else if (command == "session kill") { | |
7c673cae | 2495 | std::string client_id; |
9f95a23c | 2496 | if (!cmd_getval(cmdmap, "client_id", client_id)) { |
7c673cae | 2497 | ss << "Invalid client_id specified"; |
9f95a23c TL |
2498 | r = -ENOENT; |
2499 | goto out; | |
7c673cae | 2500 | } |
9f95a23c | 2501 | std::lock_guard l(mds_lock); |
31f18b77 | 2502 | bool evicted = evict_client(strtol(client_id.c_str(), 0, 10), true, |
9f95a23c | 2503 | g_conf()->mds_session_blacklist_on_evict, ss); |
31f18b77 | 2504 | if (!evicted) { |
9f95a23c TL |
2505 | dout(15) << ss.str() << dendl; |
2506 | r = -ENOENT; | |
7c673cae | 2507 | } |
9f95a23c TL |
2508 | } else if (command == "session config" || |
2509 | command == "client config") { | |
92f5a8d4 TL |
2510 | int64_t client_id; |
2511 | std::string option; | |
2512 | std::string value; | |
2513 | ||
9f95a23c TL |
2514 | cmd_getval(cmdmap, "client_id", client_id); |
2515 | cmd_getval(cmdmap, "option", option); | |
2516 | bool got_value = cmd_getval(cmdmap, "value", value); | |
92f5a8d4 | 2517 | |
9f95a23c TL |
2518 | std::lock_guard l(mds_lock); |
2519 | r = config_client(client_id, !got_value, option, value, ss); | |
2520 | } else if (command == "scrub start" || | |
2521 | command == "scrub_start") { | |
7c673cae | 2522 | string path; |
9f95a23c | 2523 | string tag; |
7c673cae | 2524 | vector<string> scrubop_vec; |
9f95a23c TL |
2525 | cmd_getval(cmdmap, "scrubops", scrubop_vec); |
2526 | cmd_getval(cmdmap, "path", path); | |
2527 | cmd_getval(cmdmap, "tag", tag); | |
11fdf7f2 | 2528 | |
92f5a8d4 TL |
2529 | /* Multiple MDS scrub is not currently supported. See also: https://tracker.ceph.com/issues/12274 */ |
2530 | if (mdsmap->get_max_mds() > 1) { | |
2531 | ss << "Scrub is not currently supported for multiple active MDS. Please reduce max_mds to 1 and then scrub."; | |
9f95a23c TL |
2532 | r = -EINVAL; |
2533 | goto out; | |
2534 | } | |
2535 | ||
2536 | finisher->queue( | |
2537 | new LambdaContext( | |
2538 | [this, on_finish, f, path, tag, scrubop_vec](int r) { | |
2539 | command_scrub_start( | |
2540 | f, path, tag, scrubop_vec, | |
2541 | new LambdaContext( | |
2542 | [on_finish](int r) { | |
2543 | bufferlist outbl; | |
2544 | on_finish(r, {}, outbl); | |
2545 | })); | |
2546 | })); | |
2547 | return; | |
2548 | } else if (command == "scrub abort") { | |
2549 | finisher->queue( | |
2550 | new LambdaContext( | |
2551 | [this, on_finish, f](int r) { | |
2552 | command_scrub_abort( | |
2553 | f, | |
2554 | new LambdaContext( | |
2555 | [on_finish, f](int r) { | |
2556 | bufferlist outbl; | |
2557 | f->open_object_section("result"); | |
2558 | f->dump_int("return_code", r); | |
2559 | f->close_section(); | |
2560 | on_finish(r, {}, outbl); | |
2561 | })); | |
2562 | })); | |
2563 | return; | |
2564 | } else if (command == "scrub pause") { | |
2565 | finisher->queue( | |
2566 | new LambdaContext( | |
2567 | [this, on_finish, f](int r) { | |
2568 | command_scrub_pause( | |
2569 | f, | |
2570 | new LambdaContext( | |
2571 | [on_finish, f](int r) { | |
2572 | bufferlist outbl; | |
2573 | f->open_object_section("result"); | |
2574 | f->dump_int("return_code", r); | |
2575 | f->close_section(); | |
2576 | on_finish(r, {}, outbl); | |
2577 | })); | |
2578 | })); | |
2579 | return; | |
2580 | } else if (command == "scrub resume") { | |
2581 | command_scrub_resume(f); | |
2582 | } else if (command == "scrub status") { | |
2583 | command_scrub_status(f); | |
7c673cae FG |
2584 | } else if (command == "tag path") { |
2585 | string path; | |
9f95a23c | 2586 | cmd_getval(cmdmap, "path", path); |
7c673cae | 2587 | string tag; |
9f95a23c | 2588 | cmd_getval(cmdmap, "tag", tag); |
7c673cae FG |
2589 | command_tag_path(f, path, tag); |
2590 | } else if (command == "flush_path") { | |
2591 | string path; | |
9f95a23c | 2592 | cmd_getval(cmdmap, "path", path); |
7c673cae FG |
2593 | command_flush_path(f, path); |
2594 | } else if (command == "flush journal") { | |
2595 | command_flush_journal(f); | |
2596 | } else if (command == "get subtrees") { | |
2597 | command_get_subtrees(f); | |
2598 | } else if (command == "export dir") { | |
2599 | string path; | |
9f95a23c | 2600 | if(!cmd_getval(cmdmap, "path", path)) { |
7c673cae | 2601 | ss << "malformed path"; |
9f95a23c TL |
2602 | r = -EINVAL; |
2603 | goto out; | |
7c673cae FG |
2604 | } |
2605 | int64_t rank; | |
9f95a23c | 2606 | if(!cmd_getval(cmdmap, "rank", rank)) { |
7c673cae | 2607 | ss << "malformed rank"; |
9f95a23c TL |
2608 | r = -EINVAL; |
2609 | goto out; | |
7c673cae FG |
2610 | } |
2611 | command_export_dir(f, path, (mds_rank_t)rank); | |
2612 | } else if (command == "dump cache") { | |
11fdf7f2 | 2613 | std::lock_guard l(mds_lock); |
7c673cae | 2614 | string path; |
9f95a23c | 2615 | if (!cmd_getval(cmdmap, "path", path)) { |
31f18b77 | 2616 | r = mdcache->dump_cache(f); |
7c673cae | 2617 | } else { |
31f18b77 FG |
2618 | r = mdcache->dump_cache(path); |
2619 | } | |
9f95a23c TL |
2620 | } else if (command == "cache drop") { |
2621 | int64_t timeout = 0; | |
2622 | cmd_getval(cmdmap, "timeout", timeout); | |
2623 | finisher->queue( | |
2624 | new LambdaContext( | |
2625 | [this, on_finish, f, timeout](int r) { | |
2626 | command_cache_drop( | |
2627 | timeout, f, | |
2628 | new LambdaContext( | |
2629 | [on_finish](int r) { | |
2630 | bufferlist outbl; | |
2631 | on_finish(r, {}, outbl); | |
2632 | })); | |
2633 | })); | |
2634 | return; | |
181888fb | 2635 | } else if (command == "cache status") { |
11fdf7f2 | 2636 | std::lock_guard l(mds_lock); |
f64942e4 | 2637 | mdcache->cache_status(f); |
7c673cae | 2638 | } else if (command == "dump tree") { |
11fdf7f2 | 2639 | command_dump_tree(cmdmap, ss, f); |
28e407b8 | 2640 | } else if (command == "dump loads") { |
11fdf7f2 | 2641 | std::lock_guard l(mds_lock); |
9f95a23c | 2642 | r = balancer->dump_loads(f); |
11fdf7f2 TL |
2643 | } else if (command == "dump snaps") { |
2644 | std::lock_guard l(mds_lock); | |
2645 | string server; | |
9f95a23c | 2646 | cmd_getval(cmdmap, "server", server); |
11fdf7f2 TL |
2647 | if (server == "--server") { |
2648 | if (mdsmap->get_tableserver() == whoami) { | |
2649 | snapserver->dump(f); | |
2650 | } else { | |
9f95a23c | 2651 | r = -EXDEV; |
11fdf7f2 TL |
2652 | ss << "Not snapserver"; |
2653 | } | |
2654 | } else { | |
9f95a23c | 2655 | r = snapclient->dump_cache(f); |
11fdf7f2 | 2656 | } |
7c673cae | 2657 | } else if (command == "force_readonly") { |
11fdf7f2 | 2658 | std::lock_guard l(mds_lock); |
7c673cae FG |
2659 | mdcache->force_readonly(); |
2660 | } else if (command == "dirfrag split") { | |
2661 | command_dirfrag_split(cmdmap, ss); | |
2662 | } else if (command == "dirfrag merge") { | |
2663 | command_dirfrag_merge(cmdmap, ss); | |
2664 | } else if (command == "dirfrag ls") { | |
2665 | command_dirfrag_ls(cmdmap, ss, f); | |
11fdf7f2 TL |
2666 | } else if (command == "openfiles ls") { |
2667 | command_openfiles_ls(f); | |
2668 | } else if (command == "dump inode") { | |
2669 | command_dump_inode(f, cmdmap, ss); | |
9f95a23c TL |
2670 | } else if (command == "damage ls") { |
2671 | std::lock_guard l(mds_lock); | |
2672 | damage_table.dump(f); | |
2673 | } else if (command == "damage rm") { | |
2674 | std::lock_guard l(mds_lock); | |
2675 | damage_entry_id_t id = 0; | |
2676 | if (!cmd_getval(cmdmap, "damage_id", (int64_t&)id)) { | |
2677 | r = -EINVAL; | |
2678 | goto out; | |
2679 | } | |
2680 | damage_table.erase(id); | |
7c673cae | 2681 | } else { |
9f95a23c | 2682 | r = -ENOSYS; |
7c673cae | 2683 | } |
9f95a23c TL |
2684 | out: |
2685 | on_finish(r, ss.str(), outbl); | |
7c673cae FG |
2686 | } |
2687 | ||
7c673cae FG |
2688 | /** |
2689 | * This function drops the mds_lock, so don't do anything with | |
2690 | * MDSRank after calling it (we could have gone into shutdown): just | |
2691 | * send your result back to the calling client and finish. | |
2692 | */ | |
9f95a23c TL |
2693 | void MDSRankDispatcher::evict_clients( |
2694 | const SessionFilter &filter, | |
2695 | std::function<void(int,const std::string&,bufferlist&)> on_finish) | |
7c673cae | 2696 | { |
9f95a23c | 2697 | bufferlist outbl; |
7c673cae | 2698 | if (is_any_replay()) { |
9f95a23c | 2699 | on_finish(-EAGAIN, "MDS is replaying log", outbl); |
7c673cae FG |
2700 | return; |
2701 | } | |
2702 | ||
11fdf7f2 TL |
2703 | std::vector<Session*> victims; |
2704 | const auto& sessions = sessionmap.get_sessions(); | |
2705 | for (const auto& p : sessions) { | |
7c673cae FG |
2706 | if (!p.first.is_client()) { |
2707 | continue; | |
2708 | } | |
2709 | ||
2710 | Session *s = p.second; | |
2711 | ||
9f95a23c TL |
2712 | if (filter.match(*s, std::bind(&Server::waiting_for_reconnect, server, |
2713 | std::placeholders::_1))) { | |
7c673cae FG |
2714 | victims.push_back(s); |
2715 | } | |
2716 | } | |
2717 | ||
2718 | dout(20) << __func__ << " matched " << victims.size() << " sessions" << dendl; | |
2719 | ||
2720 | if (victims.empty()) { | |
9f95a23c | 2721 | on_finish(0, {}, outbl); |
7c673cae FG |
2722 | return; |
2723 | } | |
2724 | ||
9f95a23c TL |
2725 | C_GatherBuilder gather(g_ceph_context, |
2726 | new LambdaContext([on_finish](int r) { | |
2727 | bufferlist bl; | |
2728 | on_finish(r, {}, bl); | |
2729 | })); | |
7c673cae | 2730 | for (const auto s : victims) { |
31f18b77 | 2731 | std::stringstream ss; |
11fdf7f2 TL |
2732 | evict_client(s->get_client().v, false, |
2733 | g_conf()->mds_session_blacklist_on_evict, ss, gather.new_sub()); | |
7c673cae FG |
2734 | } |
2735 | gather.activate(); | |
2736 | } | |
2737 | ||
2738 | void MDSRankDispatcher::dump_sessions(const SessionFilter &filter, Formatter *f) const | |
2739 | { | |
2740 | // Dump sessions, decorated with recovery/replay status | |
2741 | f->open_array_section("sessions"); | |
92f5a8d4 TL |
2742 | for (auto& [name, s] : sessionmap.get_sessions()) { |
2743 | if (!name.is_client()) { | |
7c673cae FG |
2744 | continue; |
2745 | } | |
2746 | ||
7c673cae FG |
2747 | if (!filter.match(*s, std::bind(&Server::waiting_for_reconnect, server, std::placeholders::_1))) { |
2748 | continue; | |
2749 | } | |
2750 | ||
92f5a8d4 | 2751 | f->dump_object("session", *s); |
7c673cae | 2752 | } |
92f5a8d4 | 2753 | f->close_section(); // sessions |
7c673cae FG |
2754 | } |
2755 | ||
11fdf7f2 TL |
2756 | void MDSRank::command_scrub_start(Formatter *f, |
2757 | std::string_view path, std::string_view tag, | |
2758 | const vector<string>& scrubop_vec, Context *on_finish) | |
7c673cae FG |
2759 | { |
2760 | bool force = false; | |
2761 | bool recursive = false; | |
2762 | bool repair = false; | |
11fdf7f2 TL |
2763 | for (auto &op : scrubop_vec) { |
2764 | if (op == "force") | |
7c673cae | 2765 | force = true; |
11fdf7f2 | 2766 | else if (op == "recursive") |
7c673cae | 2767 | recursive = true; |
11fdf7f2 | 2768 | else if (op == "repair") |
7c673cae FG |
2769 | repair = true; |
2770 | } | |
11fdf7f2 TL |
2771 | |
2772 | std::lock_guard l(mds_lock); | |
2773 | mdcache->enqueue_scrub(path, tag, force, recursive, repair, f, on_finish); | |
7c673cae FG |
2774 | // scrub_dentry() finishers will dump the data for us; we're done! |
2775 | } | |
2776 | ||
2777 | void MDSRank::command_tag_path(Formatter *f, | |
11fdf7f2 | 2778 | std::string_view path, std::string_view tag) |
7c673cae FG |
2779 | { |
2780 | C_SaferCond scond; | |
2781 | { | |
11fdf7f2 | 2782 | std::lock_guard l(mds_lock); |
7c673cae FG |
2783 | mdcache->enqueue_scrub(path, tag, true, true, false, f, &scond); |
2784 | } | |
2785 | scond.wait(); | |
2786 | } | |
2787 | ||
11fdf7f2 TL |
2788 | void MDSRank::command_scrub_abort(Formatter *f, Context *on_finish) { |
2789 | std::lock_guard l(mds_lock); | |
2790 | scrubstack->scrub_abort(on_finish); | |
2791 | } | |
2792 | ||
2793 | void MDSRank::command_scrub_pause(Formatter *f, Context *on_finish) { | |
2794 | std::lock_guard l(mds_lock); | |
2795 | scrubstack->scrub_pause(on_finish); | |
2796 | } | |
2797 | ||
2798 | void MDSRank::command_scrub_resume(Formatter *f) { | |
9f95a23c | 2799 | std::lock_guard l(mds_lock); |
11fdf7f2 TL |
2800 | int r = scrubstack->scrub_resume(); |
2801 | ||
2802 | f->open_object_section("result"); | |
2803 | f->dump_int("return_code", r); | |
2804 | f->close_section(); | |
2805 | } | |
2806 | ||
2807 | void MDSRank::command_scrub_status(Formatter *f) { | |
9f95a23c | 2808 | std::lock_guard l(mds_lock); |
11fdf7f2 TL |
2809 | scrubstack->scrub_status(f); |
2810 | } | |
2811 | ||
2812 | void MDSRank::command_flush_path(Formatter *f, std::string_view path) | |
7c673cae FG |
2813 | { |
2814 | C_SaferCond scond; | |
2815 | { | |
11fdf7f2 | 2816 | std::lock_guard l(mds_lock); |
7c673cae FG |
2817 | mdcache->flush_dentry(path, &scond); |
2818 | } | |
2819 | int r = scond.wait(); | |
2820 | f->open_object_section("results"); | |
2821 | f->dump_int("return_code", r); | |
2822 | f->close_section(); // results | |
2823 | } | |
2824 | ||
f64942e4 AA |
2825 | // synchronous wrapper around "journal flush" asynchronous context |
2826 | // execution. | |
2827 | void MDSRank::command_flush_journal(Formatter *f) { | |
2828 | ceph_assert(f != NULL); | |
7c673cae | 2829 | |
f64942e4 | 2830 | C_SaferCond cond; |
7c673cae | 2831 | std::stringstream ss; |
7c673cae | 2832 | { |
11fdf7f2 | 2833 | std::lock_guard locker(mds_lock); |
f64942e4 AA |
2834 | C_Flush_Journal *flush_journal = new C_Flush_Journal(mdcache, mdlog, this, &ss, &cond); |
2835 | flush_journal->send(); | |
7c673cae | 2836 | } |
f64942e4 | 2837 | int r = cond.wait(); |
7c673cae | 2838 | |
f64942e4 AA |
2839 | f->open_object_section("result"); |
2840 | f->dump_string("message", ss.str()); | |
2841 | f->dump_int("return_code", r); | |
2842 | f->close_section(); | |
7c673cae FG |
2843 | } |
2844 | ||
7c673cae FG |
2845 | void MDSRank::command_get_subtrees(Formatter *f) |
2846 | { | |
11fdf7f2 TL |
2847 | ceph_assert(f != NULL); |
2848 | std::lock_guard l(mds_lock); | |
7c673cae | 2849 | |
11fdf7f2 TL |
2850 | std::vector<CDir*> subtrees; |
2851 | mdcache->get_subtrees(subtrees); | |
7c673cae FG |
2852 | |
2853 | f->open_array_section("subtrees"); | |
11fdf7f2 | 2854 | for (const auto& dir : subtrees) { |
7c673cae FG |
2855 | f->open_object_section("subtree"); |
2856 | { | |
2857 | f->dump_bool("is_auth", dir->is_auth()); | |
2858 | f->dump_int("auth_first", dir->get_dir_auth().first); | |
2859 | f->dump_int("auth_second", dir->get_dir_auth().second); | |
d2e6a577 | 2860 | f->dump_int("export_pin", dir->inode->get_export_pin()); |
7c673cae FG |
2861 | f->open_object_section("dir"); |
2862 | dir->dump(f); | |
2863 | f->close_section(); | |
2864 | } | |
2865 | f->close_section(); | |
2866 | } | |
2867 | f->close_section(); | |
2868 | } | |
2869 | ||
2870 | ||
2871 | void MDSRank::command_export_dir(Formatter *f, | |
11fdf7f2 | 2872 | std::string_view path, |
7c673cae FG |
2873 | mds_rank_t target) |
2874 | { | |
2875 | int r = _command_export_dir(path, target); | |
2876 | f->open_object_section("results"); | |
2877 | f->dump_int("return_code", r); | |
2878 | f->close_section(); // results | |
2879 | } | |
2880 | ||
2881 | int MDSRank::_command_export_dir( | |
11fdf7f2 | 2882 | std::string_view path, |
7c673cae FG |
2883 | mds_rank_t target) |
2884 | { | |
11fdf7f2 | 2885 | std::lock_guard l(mds_lock); |
94b18763 | 2886 | filepath fp(path); |
7c673cae FG |
2887 | |
2888 | if (target == whoami || !mdsmap->is_up(target) || !mdsmap->is_in(target)) { | |
2889 | derr << "bad MDS target " << target << dendl; | |
2890 | return -ENOENT; | |
2891 | } | |
2892 | ||
2893 | CInode *in = mdcache->cache_traverse(fp); | |
2894 | if (!in) { | |
2895 | derr << "Bath path '" << path << "'" << dendl; | |
2896 | return -ENOENT; | |
2897 | } | |
2898 | CDir *dir = in->get_dirfrag(frag_t()); | |
2899 | if (!dir || !(dir->is_auth())) { | |
2900 | derr << "bad export_dir path dirfrag frag_t() or dir not auth" << dendl; | |
2901 | return -EINVAL; | |
2902 | } | |
2903 | ||
2904 | mdcache->migrator->export_dir(dir, target); | |
2905 | return 0; | |
2906 | } | |
2907 | ||
11fdf7f2 TL |
2908 | void MDSRank::command_dump_tree(const cmdmap_t &cmdmap, std::ostream &ss, Formatter *f) |
2909 | { | |
2910 | std::string root; | |
2911 | int64_t depth; | |
9f95a23c TL |
2912 | cmd_getval(cmdmap, "root", root); |
2913 | if (!cmd_getval(cmdmap, "depth", depth)) | |
11fdf7f2 TL |
2914 | depth = -1; |
2915 | std::lock_guard l(mds_lock); | |
2916 | CInode *in = mdcache->cache_traverse(filepath(root.c_str())); | |
2917 | if (!in) { | |
2918 | ss << "root inode is not in cache"; | |
2919 | return; | |
2920 | } | |
2921 | f->open_array_section("inodes"); | |
2922 | mdcache->dump_tree(in, 0, depth, f); | |
2923 | f->close_section(); | |
2924 | } | |
2925 | ||
7c673cae FG |
2926 | CDir *MDSRank::_command_dirfrag_get( |
2927 | const cmdmap_t &cmdmap, | |
2928 | std::ostream &ss) | |
2929 | { | |
2930 | std::string path; | |
9f95a23c | 2931 | bool got = cmd_getval(cmdmap, "path", path); |
7c673cae FG |
2932 | if (!got) { |
2933 | ss << "missing path argument"; | |
2934 | return NULL; | |
2935 | } | |
2936 | ||
2937 | std::string frag_str; | |
9f95a23c | 2938 | if (!cmd_getval(cmdmap, "frag", frag_str)) { |
7c673cae FG |
2939 | ss << "missing frag argument"; |
2940 | return NULL; | |
2941 | } | |
2942 | ||
2943 | CInode *in = mdcache->cache_traverse(filepath(path.c_str())); | |
2944 | if (!in) { | |
2945 | // TODO really we should load something in if it's not in cache, | |
2946 | // but the infrastructure is harder, and we might still be unable | |
2947 | // to act on it if someone else is auth. | |
2948 | ss << "directory '" << path << "' inode not in cache"; | |
2949 | return NULL; | |
2950 | } | |
2951 | ||
2952 | frag_t fg; | |
2953 | ||
2954 | if (!fg.parse(frag_str.c_str())) { | |
2955 | ss << "frag " << frag_str << " failed to parse"; | |
2956 | return NULL; | |
2957 | } | |
2958 | ||
2959 | CDir *dir = in->get_dirfrag(fg); | |
2960 | if (!dir) { | |
11fdf7f2 | 2961 | ss << "frag " << in->ino() << "/" << fg << " not in cache (" |
7c673cae FG |
2962 | "use `dirfrag ls` to see if it should exist)"; |
2963 | return NULL; | |
2964 | } | |
2965 | ||
2966 | if (!dir->is_auth()) { | |
2967 | ss << "frag " << dir->dirfrag() << " not auth (auth = " | |
2968 | << dir->authority() << ")"; | |
2969 | return NULL; | |
2970 | } | |
2971 | ||
2972 | return dir; | |
2973 | } | |
2974 | ||
2975 | bool MDSRank::command_dirfrag_split( | |
2976 | cmdmap_t cmdmap, | |
2977 | std::ostream &ss) | |
2978 | { | |
11fdf7f2 | 2979 | std::lock_guard l(mds_lock); |
7c673cae | 2980 | int64_t by = 0; |
9f95a23c | 2981 | if (!cmd_getval(cmdmap, "bits", by)) { |
7c673cae FG |
2982 | ss << "missing bits argument"; |
2983 | return false; | |
2984 | } | |
2985 | ||
2986 | if (by <= 0) { | |
2987 | ss << "must split by >0 bits"; | |
2988 | return false; | |
2989 | } | |
2990 | ||
2991 | CDir *dir = _command_dirfrag_get(cmdmap, ss); | |
2992 | if (!dir) { | |
2993 | return false; | |
2994 | } | |
2995 | ||
2996 | mdcache->split_dir(dir, by); | |
2997 | ||
2998 | return true; | |
2999 | } | |
3000 | ||
3001 | bool MDSRank::command_dirfrag_merge( | |
3002 | cmdmap_t cmdmap, | |
3003 | std::ostream &ss) | |
3004 | { | |
11fdf7f2 | 3005 | std::lock_guard l(mds_lock); |
7c673cae | 3006 | std::string path; |
9f95a23c | 3007 | bool got = cmd_getval(cmdmap, "path", path); |
7c673cae FG |
3008 | if (!got) { |
3009 | ss << "missing path argument"; | |
3010 | return false; | |
3011 | } | |
3012 | ||
3013 | std::string frag_str; | |
9f95a23c | 3014 | if (!cmd_getval(cmdmap, "frag", frag_str)) { |
7c673cae FG |
3015 | ss << "missing frag argument"; |
3016 | return false; | |
3017 | } | |
3018 | ||
3019 | CInode *in = mdcache->cache_traverse(filepath(path.c_str())); | |
3020 | if (!in) { | |
3021 | ss << "directory '" << path << "' inode not in cache"; | |
3022 | return false; | |
3023 | } | |
3024 | ||
3025 | frag_t fg; | |
3026 | if (!fg.parse(frag_str.c_str())) { | |
3027 | ss << "frag " << frag_str << " failed to parse"; | |
3028 | return false; | |
3029 | } | |
3030 | ||
3031 | mdcache->merge_dir(in, fg); | |
3032 | ||
3033 | return true; | |
3034 | } | |
3035 | ||
3036 | bool MDSRank::command_dirfrag_ls( | |
3037 | cmdmap_t cmdmap, | |
3038 | std::ostream &ss, | |
3039 | Formatter *f) | |
3040 | { | |
11fdf7f2 | 3041 | std::lock_guard l(mds_lock); |
7c673cae | 3042 | std::string path; |
9f95a23c | 3043 | bool got = cmd_getval(cmdmap, "path", path); |
7c673cae FG |
3044 | if (!got) { |
3045 | ss << "missing path argument"; | |
3046 | return false; | |
3047 | } | |
3048 | ||
3049 | CInode *in = mdcache->cache_traverse(filepath(path.c_str())); | |
3050 | if (!in) { | |
3051 | ss << "directory inode not in cache"; | |
3052 | return false; | |
3053 | } | |
3054 | ||
3055 | f->open_array_section("frags"); | |
11fdf7f2 | 3056 | frag_vec_t leaves; |
7c673cae FG |
3057 | // NB using get_leaves_under instead of get_dirfrags to give |
3058 | // you the list of what dirfrags may exist, not which are in cache | |
11fdf7f2 TL |
3059 | in->dirfragtree.get_leaves_under(frag_t(), leaves); |
3060 | for (const auto& leaf : leaves) { | |
7c673cae | 3061 | f->open_object_section("frag"); |
11fdf7f2 TL |
3062 | f->dump_int("value", leaf.value()); |
3063 | f->dump_int("bits", leaf.bits()); | |
3064 | CachedStackStringStream css; | |
3065 | *css << std::hex << leaf.value() << "/" << std::dec << leaf.bits(); | |
3066 | f->dump_string("str", css->strv()); | |
7c673cae FG |
3067 | f->close_section(); |
3068 | } | |
3069 | f->close_section(); | |
3070 | ||
3071 | return true; | |
3072 | } | |
3073 | ||
11fdf7f2 TL |
3074 | void MDSRank::command_openfiles_ls(Formatter *f) |
3075 | { | |
3076 | std::lock_guard l(mds_lock); | |
3077 | mdcache->dump_openfiles(f); | |
3078 | } | |
3079 | ||
3080 | void MDSRank::command_dump_inode(Formatter *f, const cmdmap_t &cmdmap, std::ostream &ss) | |
3081 | { | |
3082 | std::lock_guard l(mds_lock); | |
3083 | int64_t number; | |
9f95a23c | 3084 | bool got = cmd_getval(cmdmap, "number", number); |
11fdf7f2 TL |
3085 | if (!got) { |
3086 | ss << "missing inode number"; | |
3087 | return; | |
3088 | } | |
3089 | ||
3090 | bool success = mdcache->dump_inode(f, number); | |
3091 | if (!success) { | |
3092 | ss << "dump inode failed, wrong inode number or the inode is not cached"; | |
3093 | } | |
3094 | } | |
3095 | ||
7c673cae FG |
3096 | void MDSRank::dump_status(Formatter *f) const |
3097 | { | |
3098 | if (state == MDSMap::STATE_REPLAY || | |
3099 | state == MDSMap::STATE_STANDBY_REPLAY) { | |
3100 | mdlog->dump_replay_status(f); | |
3101 | } else if (state == MDSMap::STATE_RESOLVE) { | |
3102 | mdcache->dump_resolve_status(f); | |
3103 | } else if (state == MDSMap::STATE_RECONNECT) { | |
3104 | server->dump_reconnect_status(f); | |
3105 | } else if (state == MDSMap::STATE_REJOIN) { | |
3106 | mdcache->dump_rejoin_status(f); | |
3107 | } else if (state == MDSMap::STATE_CLIENTREPLAY) { | |
3108 | dump_clientreplay_status(f); | |
3109 | } | |
94b18763 | 3110 | f->dump_float("rank_uptime", get_uptime().count()); |
7c673cae FG |
3111 | } |
3112 | ||
3113 | void MDSRank::dump_clientreplay_status(Formatter *f) const | |
3114 | { | |
3115 | f->open_object_section("clientreplay_status"); | |
3116 | f->dump_unsigned("clientreplay_queue", replay_queue.size()); | |
3117 | f->dump_unsigned("active_replay", mdcache->get_num_client_requests()); | |
3118 | f->close_section(); | |
3119 | } | |
3120 | ||
3121 | void MDSRankDispatcher::update_log_config() | |
3122 | { | |
3123 | map<string,string> log_to_monitors; | |
3124 | map<string,string> log_to_syslog; | |
3125 | map<string,string> log_channel; | |
3126 | map<string,string> log_prio; | |
3127 | map<string,string> log_to_graylog; | |
3128 | map<string,string> log_to_graylog_host; | |
3129 | map<string,string> log_to_graylog_port; | |
3130 | uuid_d fsid; | |
3131 | string host; | |
3132 | ||
3133 | if (parse_log_client_options(g_ceph_context, log_to_monitors, log_to_syslog, | |
3134 | log_channel, log_prio, log_to_graylog, | |
3135 | log_to_graylog_host, log_to_graylog_port, | |
3136 | fsid, host) == 0) | |
3137 | clog->update_config(log_to_monitors, log_to_syslog, | |
3138 | log_channel, log_prio, log_to_graylog, | |
3139 | log_to_graylog_host, log_to_graylog_port, | |
3140 | fsid, host); | |
3141 | dout(10) << __func__ << " log_to_monitors " << log_to_monitors << dendl; | |
3142 | } | |
3143 | ||
3144 | void MDSRank::create_logger() | |
3145 | { | |
3146 | dout(10) << "create_logger" << dendl; | |
3147 | { | |
3148 | PerfCountersBuilder mds_plb(g_ceph_context, "mds", l_mds_first, l_mds_last); | |
3149 | ||
91327a77 AA |
3150 | // super useful (high prio) perf stats |
3151 | mds_plb.add_u64_counter(l_mds_request, "request", "Requests", "req", | |
3152 | PerfCountersBuilder::PRIO_CRITICAL); | |
3153 | mds_plb.add_time_avg(l_mds_reply_latency, "reply_latency", "Reply latency", "rlat", | |
3154 | PerfCountersBuilder::PRIO_CRITICAL); | |
3155 | mds_plb.add_u64(l_mds_inodes, "inodes", "Inodes", "inos", | |
3156 | PerfCountersBuilder::PRIO_CRITICAL); | |
3157 | mds_plb.add_u64_counter(l_mds_forward, "forward", "Forwarding request", "fwd", | |
3158 | PerfCountersBuilder::PRIO_INTERESTING); | |
3159 | mds_plb.add_u64(l_mds_caps, "caps", "Capabilities", "caps", | |
3160 | PerfCountersBuilder::PRIO_INTERESTING); | |
3161 | mds_plb.add_u64_counter(l_mds_exported_inodes, "exported_inodes", "Exported inodes", | |
3162 | "exi", PerfCountersBuilder::PRIO_INTERESTING); | |
3163 | mds_plb.add_u64_counter(l_mds_imported_inodes, "imported_inodes", "Imported inodes", | |
3164 | "imi", PerfCountersBuilder::PRIO_INTERESTING); | |
3165 | ||
3166 | // useful dir/inode/subtree stats | |
3167 | mds_plb.set_prio_default(PerfCountersBuilder::PRIO_USEFUL); | |
eafe8130 TL |
3168 | mds_plb.add_u64(l_mds_root_rfiles, "root_rfiles", "root inode rfiles"); |
3169 | mds_plb.add_u64(l_mds_root_rbytes, "root_rbytes", "root inode rbytes"); | |
3170 | mds_plb.add_u64(l_mds_root_rsnaps, "root_rsnaps", "root inode rsnaps"); | |
7c673cae FG |
3171 | mds_plb.add_u64_counter(l_mds_dir_fetch, "dir_fetch", "Directory fetch"); |
3172 | mds_plb.add_u64_counter(l_mds_dir_commit, "dir_commit", "Directory commit"); | |
3173 | mds_plb.add_u64_counter(l_mds_dir_split, "dir_split", "Directory split"); | |
3174 | mds_plb.add_u64_counter(l_mds_dir_merge, "dir_merge", "Directory merge"); | |
7c673cae FG |
3175 | mds_plb.add_u64(l_mds_inodes_pinned, "inodes_pinned", "Inodes pinned"); |
3176 | mds_plb.add_u64(l_mds_inodes_expired, "inodes_expired", "Inodes expired"); | |
91327a77 AA |
3177 | mds_plb.add_u64(l_mds_inodes_with_caps, "inodes_with_caps", |
3178 | "Inodes with capabilities"); | |
7c673cae | 3179 | mds_plb.add_u64(l_mds_subtrees, "subtrees", "Subtrees"); |
91327a77 | 3180 | mds_plb.add_u64(l_mds_load_cent, "load_cent", "Load per cent"); |
11fdf7f2 TL |
3181 | mds_plb.add_u64_counter(l_mds_openino_dir_fetch, "openino_dir_fetch", |
3182 | "OpenIno incomplete directory fetchings"); | |
7c673cae | 3183 | |
91327a77 AA |
3184 | // low prio stats |
3185 | mds_plb.set_prio_default(PerfCountersBuilder::PRIO_DEBUGONLY); | |
3186 | mds_plb.add_u64_counter(l_mds_reply, "reply", "Replies"); | |
3187 | mds_plb.add_u64(l_mds_inodes_top, "inodes_top", "Inodes on top"); | |
3188 | mds_plb.add_u64(l_mds_inodes_bottom, "inodes_bottom", "Inodes on bottom"); | |
3189 | mds_plb.add_u64( | |
3190 | l_mds_inodes_pin_tail, "inodes_pin_tail", "Inodes on pin tail"); | |
7c673cae FG |
3191 | mds_plb.add_u64_counter(l_mds_traverse, "traverse", "Traverses"); |
3192 | mds_plb.add_u64_counter(l_mds_traverse_hit, "traverse_hit", "Traverse hits"); | |
3193 | mds_plb.add_u64_counter(l_mds_traverse_forward, "traverse_forward", | |
91327a77 | 3194 | "Traverse forwards"); |
7c673cae | 3195 | mds_plb.add_u64_counter(l_mds_traverse_discover, "traverse_discover", |
91327a77 | 3196 | "Traverse directory discovers"); |
7c673cae | 3197 | mds_plb.add_u64_counter(l_mds_traverse_dir_fetch, "traverse_dir_fetch", |
91327a77 | 3198 | "Traverse incomplete directory content fetchings"); |
7c673cae | 3199 | mds_plb.add_u64_counter(l_mds_traverse_remote_ino, "traverse_remote_ino", |
91327a77 | 3200 | "Traverse remote dentries"); |
7c673cae | 3201 | mds_plb.add_u64_counter(l_mds_traverse_lock, "traverse_lock", |
91327a77 | 3202 | "Traverse locks"); |
7c673cae | 3203 | mds_plb.add_u64(l_mds_dispatch_queue_len, "q", "Dispatch queue length"); |
7c673cae | 3204 | mds_plb.add_u64_counter(l_mds_exported, "exported", "Exports"); |
7c673cae | 3205 | mds_plb.add_u64_counter(l_mds_imported, "imported", "Imports"); |
11fdf7f2 TL |
3206 | mds_plb.add_u64_counter(l_mds_openino_backtrace_fetch, "openino_backtrace_fetch", |
3207 | "OpenIno backtrace fetchings"); | |
3208 | mds_plb.add_u64_counter(l_mds_openino_peer_discover, "openino_peer_discover", | |
3209 | "OpenIno peer inode discovers"); | |
91327a77 | 3210 | |
7c673cae FG |
3211 | logger = mds_plb.create_perf_counters(); |
3212 | g_ceph_context->get_perfcounters_collection()->add(logger); | |
3213 | } | |
3214 | ||
3215 | { | |
3216 | PerfCountersBuilder mdm_plb(g_ceph_context, "mds_mem", l_mdm_first, l_mdm_last); | |
b32b8144 FG |
3217 | mdm_plb.add_u64(l_mdm_ino, "ino", "Inodes", "ino", |
3218 | PerfCountersBuilder::PRIO_INTERESTING); | |
91327a77 AA |
3219 | mdm_plb.add_u64(l_mdm_dn, "dn", "Dentries", "dn", |
3220 | PerfCountersBuilder::PRIO_INTERESTING); | |
3221 | ||
3222 | mdm_plb.set_prio_default(PerfCountersBuilder::PRIO_USEFUL); | |
7c673cae FG |
3223 | mdm_plb.add_u64_counter(l_mdm_inoa, "ino+", "Inodes opened"); |
3224 | mdm_plb.add_u64_counter(l_mdm_inos, "ino-", "Inodes closed"); | |
3225 | mdm_plb.add_u64(l_mdm_dir, "dir", "Directories"); | |
3226 | mdm_plb.add_u64_counter(l_mdm_dira, "dir+", "Directories opened"); | |
3227 | mdm_plb.add_u64_counter(l_mdm_dirs, "dir-", "Directories closed"); | |
7c673cae FG |
3228 | mdm_plb.add_u64_counter(l_mdm_dna, "dn+", "Dentries opened"); |
3229 | mdm_plb.add_u64_counter(l_mdm_dns, "dn-", "Dentries closed"); | |
3230 | mdm_plb.add_u64(l_mdm_cap, "cap", "Capabilities"); | |
3231 | mdm_plb.add_u64_counter(l_mdm_capa, "cap+", "Capabilities added"); | |
3232 | mdm_plb.add_u64_counter(l_mdm_caps, "cap-", "Capabilities removed"); | |
7c673cae | 3233 | mdm_plb.add_u64(l_mdm_heap, "heap", "Heap size"); |
91327a77 AA |
3234 | |
3235 | mdm_plb.set_prio_default(PerfCountersBuilder::PRIO_DEBUGONLY); | |
3236 | mdm_plb.add_u64(l_mdm_rss, "rss", "RSS"); | |
3237 | ||
7c673cae FG |
3238 | mlogger = mdm_plb.create_perf_counters(); |
3239 | g_ceph_context->get_perfcounters_collection()->add(mlogger); | |
3240 | } | |
3241 | ||
3242 | mdlog->create_logger(); | |
3243 | server->create_logger(); | |
3244 | purge_queue.create_logger(); | |
3245 | sessionmap.register_perfcounters(); | |
3246 | mdcache->register_perfcounters(); | |
3247 | } | |
3248 | ||
3249 | void MDSRank::check_ops_in_flight() | |
3250 | { | |
11fdf7f2 | 3251 | string summary; |
7c673cae FG |
3252 | vector<string> warnings; |
3253 | int slow = 0; | |
11fdf7f2 TL |
3254 | if (op_tracker.check_ops_in_flight(&summary, warnings, &slow)) { |
3255 | clog->warn() << summary; | |
3256 | for (const auto& warning : warnings) { | |
3257 | clog->warn() << warning; | |
7c673cae FG |
3258 | } |
3259 | } | |
3260 | ||
3261 | // set mds slow request count | |
3262 | mds_slow_req_count = slow; | |
3263 | return; | |
3264 | } | |
3265 | ||
3266 | void MDSRankDispatcher::handle_osd_map() | |
3267 | { | |
11fdf7f2 TL |
3268 | if (is_active() && |
3269 | mdsmap->get_tableserver() == whoami) { | |
7c673cae FG |
3270 | snapserver->check_osd_map(true); |
3271 | } | |
3272 | ||
3273 | server->handle_osd_map(); | |
3274 | ||
3275 | purge_queue.update_op_limit(*mdsmap); | |
3276 | ||
31f18b77 FG |
3277 | std::set<entity_addr_t> newly_blacklisted; |
3278 | objecter->consume_blacklist_events(&newly_blacklisted); | |
3279 | auto epoch = objecter->with_osdmap([](const OSDMap &o){return o.get_epoch();}); | |
3280 | dout(4) << "handle_osd_map epoch " << epoch << ", " | |
3281 | << newly_blacklisted.size() << " new blacklist entries" << dendl; | |
3282 | auto victims = server->apply_blacklist(newly_blacklisted); | |
3283 | if (victims) { | |
3284 | set_osd_epoch_barrier(epoch); | |
3285 | } | |
3286 | ||
3287 | ||
7c673cae FG |
3288 | // By default the objecter only requests OSDMap updates on use, |
3289 | // we would like to always receive the latest maps in order to | |
3290 | // apply policy based on the FULL flag. | |
3291 | objecter->maybe_request_map(); | |
3292 | } | |
3293 | ||
92f5a8d4 TL |
3294 | int MDSRank::config_client(int64_t session_id, bool remove, |
3295 | const std::string& option, const std::string& value, | |
3296 | std::ostream& ss) | |
3297 | { | |
3298 | Session *session = sessionmap.get_session(entity_name_t(CEPH_ENTITY_TYPE_CLIENT, session_id)); | |
3299 | if (!session) { | |
3300 | ss << "session " << session_id << " not in sessionmap!"; | |
3301 | return -ENOENT; | |
3302 | } | |
3303 | ||
3304 | if (option == "timeout") { | |
3305 | if (remove) { | |
3306 | auto it = session->info.client_metadata.find("timeout"); | |
3307 | if (it == session->info.client_metadata.end()) { | |
3308 | ss << "Nonexistent config: " << option; | |
3309 | return -ENODATA; | |
3310 | } | |
3311 | session->info.client_metadata.erase(it); | |
3312 | } else { | |
3313 | char *end; | |
3314 | strtoul(value.c_str(), &end, 0); | |
3315 | if (*end) { | |
3316 | ss << "Invalid config for timeout: " << value; | |
3317 | return -EINVAL; | |
3318 | } | |
3319 | session->info.client_metadata[option] = value; | |
3320 | } | |
3321 | //sessionmap._mark_dirty(session, true); | |
3322 | } else { | |
3323 | ss << "Invalid config option: " << option; | |
3324 | return -EINVAL; | |
3325 | } | |
3326 | ||
3327 | return 0; | |
3328 | } | |
3329 | ||
31f18b77 | 3330 | bool MDSRank::evict_client(int64_t session_id, |
11fdf7f2 | 3331 | bool wait, bool blacklist, std::ostream& err_ss, |
31f18b77 | 3332 | Context *on_killed) |
7c673cae | 3333 | { |
9f95a23c | 3334 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
31f18b77 FG |
3335 | |
3336 | // Mutually exclusive args | |
11fdf7f2 | 3337 | ceph_assert(!(wait && on_killed != nullptr)); |
31f18b77 | 3338 | |
7c673cae FG |
3339 | if (is_any_replay()) { |
3340 | err_ss << "MDS is replaying log"; | |
3341 | return false; | |
3342 | } | |
3343 | ||
31f18b77 FG |
3344 | Session *session = sessionmap.get_session( |
3345 | entity_name_t(CEPH_ENTITY_TYPE_CLIENT, session_id)); | |
7c673cae FG |
3346 | if (!session) { |
3347 | err_ss << "session " << session_id << " not in sessionmap!"; | |
3348 | return false; | |
3349 | } | |
7c673cae | 3350 | |
a8e16298 TL |
3351 | auto& addr = session->info.inst.addr; |
3352 | { | |
11fdf7f2 TL |
3353 | CachedStackStringStream css; |
3354 | *css << "Evicting " << (blacklist ? "(and blacklisting) " : "") | |
3355 | << "client session " << session_id << " (" << addr << ")"; | |
3356 | dout(1) << css->strv() << dendl; | |
3357 | clog->info() << css->strv(); | |
a8e16298 TL |
3358 | } |
3359 | ||
31f18b77 FG |
3360 | dout(4) << "Preparing blacklist command... (wait=" << wait << ")" << dendl; |
3361 | stringstream ss; | |
3362 | ss << "{\"prefix\":\"osd blacklist\", \"blacklistop\":\"add\","; | |
3363 | ss << "\"addr\":\""; | |
a8e16298 | 3364 | ss << addr; |
31f18b77 FG |
3365 | ss << "\"}"; |
3366 | std::string tmp = ss.str(); | |
3367 | std::vector<std::string> cmd = {tmp}; | |
3368 | ||
91327a77 | 3369 | auto kill_client_session = [this, session_id, wait, on_killed](){ |
9f95a23c | 3370 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
31f18b77 FG |
3371 | Session *session = sessionmap.get_session( |
3372 | entity_name_t(CEPH_ENTITY_TYPE_CLIENT, session_id)); | |
3373 | if (session) { | |
91327a77 | 3374 | if (on_killed || !wait) { |
31f18b77 FG |
3375 | server->kill_session(session, on_killed); |
3376 | } else { | |
3377 | C_SaferCond on_safe; | |
3378 | server->kill_session(session, &on_safe); | |
3379 | ||
9f95a23c | 3380 | mds_lock.unlock(); |
31f18b77 | 3381 | on_safe.wait(); |
9f95a23c | 3382 | mds_lock.lock(); |
31f18b77 FG |
3383 | } |
3384 | } else { | |
3385 | dout(1) << "session " << session_id << " was removed while we waited " | |
3386 | "for blacklist" << dendl; | |
3387 | ||
3388 | // Even though it wasn't us that removed it, kick our completion | |
3389 | // as the session has been removed. | |
3390 | if (on_killed) { | |
3391 | on_killed->complete(0); | |
3392 | } | |
3393 | } | |
3394 | }; | |
3395 | ||
91327a77 | 3396 | auto apply_blacklist = [this, cmd](std::function<void ()> fn){ |
9f95a23c | 3397 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
31f18b77 | 3398 | |
9f95a23c | 3399 | Context *on_blacklist_done = new LambdaContext([this, fn](int r) { |
31f18b77 FG |
3400 | objecter->wait_for_latest_osdmap( |
3401 | new C_OnFinisher( | |
9f95a23c | 3402 | new LambdaContext([this, fn](int r) { |
11fdf7f2 | 3403 | std::lock_guard l(mds_lock); |
31f18b77 FG |
3404 | auto epoch = objecter->with_osdmap([](const OSDMap &o){ |
3405 | return o.get_epoch(); | |
3406 | }); | |
3407 | ||
3408 | set_osd_epoch_barrier(epoch); | |
3409 | ||
3410 | fn(); | |
3411 | }), finisher) | |
3412 | ); | |
3413 | }); | |
3414 | ||
3415 | dout(4) << "Sending mon blacklist command: " << cmd[0] << dendl; | |
3416 | monc->start_mon_command(cmd, {}, nullptr, nullptr, on_blacklist_done); | |
3417 | }; | |
3418 | ||
31f18b77 FG |
3419 | if (wait) { |
3420 | if (blacklist) { | |
91327a77 AA |
3421 | C_SaferCond inline_ctx; |
3422 | apply_blacklist([&inline_ctx](){inline_ctx.complete(0);}); | |
9f95a23c | 3423 | mds_lock.unlock(); |
91327a77 | 3424 | inline_ctx.wait(); |
9f95a23c | 3425 | mds_lock.lock(); |
31f18b77 FG |
3426 | } |
3427 | ||
3428 | // We dropped mds_lock, so check that session still exists | |
3429 | session = sessionmap.get_session(entity_name_t(CEPH_ENTITY_TYPE_CLIENT, | |
11fdf7f2 | 3430 | session_id)); |
31f18b77 FG |
3431 | if (!session) { |
3432 | dout(1) << "session " << session_id << " was removed while we waited " | |
3433 | "for blacklist" << dendl; | |
3434 | return true; | |
3435 | } | |
91327a77 | 3436 | kill_client_session(); |
7c673cae | 3437 | } else { |
31f18b77 | 3438 | if (blacklist) { |
91327a77 | 3439 | apply_blacklist(kill_client_session); |
31f18b77 | 3440 | } else { |
91327a77 | 3441 | kill_client_session(); |
31f18b77 | 3442 | } |
7c673cae | 3443 | } |
31f18b77 | 3444 | |
7c673cae FG |
3445 | return true; |
3446 | } | |
3447 | ||
3448 | void MDSRank::bcast_mds_map() | |
3449 | { | |
3450 | dout(7) << "bcast_mds_map " << mdsmap->get_epoch() << dendl; | |
3451 | ||
3452 | // share the map with mounted clients | |
3453 | set<Session*> clients; | |
3454 | sessionmap.get_client_session_set(clients); | |
11fdf7f2 | 3455 | for (const auto &session : clients) { |
9f95a23c | 3456 | auto m = make_message<MMDSMap>(monc->get_fsid(), *mdsmap); |
11fdf7f2 TL |
3457 | session->get_connection()->send_message2(std::move(m)); |
3458 | } | |
7c673cae FG |
3459 | last_client_mdsmap_bcast = mdsmap->get_epoch(); |
3460 | } | |
3461 | ||
3462 | MDSRankDispatcher::MDSRankDispatcher( | |
3463 | mds_rank_t whoami_, | |
9f95a23c | 3464 | ceph::mutex &mds_lock_, |
7c673cae FG |
3465 | LogChannelRef &clog_, |
3466 | SafeTimer &timer_, | |
3467 | Beacon &beacon_, | |
11fdf7f2 | 3468 | std::unique_ptr<MDSMap> &mdsmap_, |
7c673cae FG |
3469 | Messenger *msgr, |
3470 | MonClient *monc_, | |
9f95a23c | 3471 | MgrClient *mgrc, |
7c673cae FG |
3472 | Context *respawn_hook_, |
3473 | Context *suicide_hook_) | |
3474 | : MDSRank(whoami_, mds_lock_, clog_, timer_, beacon_, mdsmap_, | |
9f95a23c | 3475 | msgr, monc_, mgrc, respawn_hook_, suicide_hook_) |
92f5a8d4 | 3476 | { |
9f95a23c | 3477 | g_conf().add_observer(this); |
7c673cae FG |
3478 | } |
3479 | ||
f64942e4 AA |
3480 | void MDSRank::command_cache_drop(uint64_t timeout, Formatter *f, Context *on_finish) { |
3481 | dout(20) << __func__ << dendl; | |
3482 | ||
11fdf7f2 | 3483 | std::lock_guard locker(mds_lock); |
f64942e4 AA |
3484 | C_Drop_Cache *request = new C_Drop_Cache(server, mdcache, mdlog, this, |
3485 | timeout, f, on_finish); | |
3486 | request->send(); | |
3487 | } | |
3488 | ||
7c673cae FG |
3489 | epoch_t MDSRank::get_osd_epoch() const |
3490 | { | |
3491 | return objecter->with_osdmap(std::mem_fn(&OSDMap::get_epoch)); | |
3492 | } | |
3493 | ||
92f5a8d4 TL |
3494 | const char** MDSRankDispatcher::get_tracked_conf_keys() const |
3495 | { | |
3496 | static const char* KEYS[] = { | |
3497 | "clog_to_graylog", | |
3498 | "clog_to_graylog_host", | |
3499 | "clog_to_graylog_port", | |
3500 | "clog_to_monitors", | |
3501 | "clog_to_syslog", | |
3502 | "clog_to_syslog_facility", | |
3503 | "clog_to_syslog_level", | |
3504 | "fsid", | |
3505 | "host", | |
3506 | "mds_bal_fragment_dirs", | |
3507 | "mds_bal_fragment_interval", | |
3508 | "mds_cache_memory_limit", | |
3509 | "mds_cache_mid", | |
3510 | "mds_cache_reservation", | |
92f5a8d4 TL |
3511 | "mds_cache_trim_decay_rate", |
3512 | "mds_cap_revoke_eviction_timeout", | |
3513 | "mds_dump_cache_threshold_file", | |
3514 | "mds_dump_cache_threshold_formatter", | |
3515 | "mds_enable_op_tracker", | |
3516 | "mds_health_cache_threshold", | |
3517 | "mds_inject_migrator_session_race", | |
3518 | "mds_log_pause", | |
3519 | "mds_max_export_size", | |
3520 | "mds_max_purge_files", | |
9f95a23c | 3521 | "mds_forward_all_requests_to_auth", |
92f5a8d4 TL |
3522 | "mds_max_purge_ops", |
3523 | "mds_max_purge_ops_per_pg", | |
9f95a23c | 3524 | "mds_max_snaps_per_dir", |
92f5a8d4 TL |
3525 | "mds_op_complaint_time", |
3526 | "mds_op_history_duration", | |
3527 | "mds_op_history_size", | |
3528 | "mds_op_log_threshold", | |
3529 | "mds_recall_max_decay_rate", | |
3530 | "mds_recall_warning_decay_rate", | |
3531 | "mds_request_load_average_decay_rate", | |
3532 | "mds_session_cache_liveness_decay_rate", | |
3533 | "mds_replay_unsafe_with_closed_session", | |
3534 | NULL | |
3535 | }; | |
3536 | return KEYS; | |
3537 | } | |
3538 | ||
3539 | void MDSRankDispatcher::handle_conf_change(const ConfigProxy& conf, const std::set<std::string>& changed) | |
3540 | { | |
3541 | // XXX with or without mds_lock! | |
3542 | ||
3543 | if (changed.count("mds_op_complaint_time") || changed.count("mds_op_log_threshold")) { | |
3544 | op_tracker.set_complaint_and_threshold(conf->mds_op_complaint_time, conf->mds_op_log_threshold); | |
3545 | } | |
3546 | if (changed.count("mds_op_history_size") || changed.count("mds_op_history_duration")) { | |
3547 | op_tracker.set_history_size_and_duration(conf->mds_op_history_size, conf->mds_op_history_duration); | |
3548 | } | |
3549 | if (changed.count("mds_enable_op_tracker")) { | |
3550 | op_tracker.set_tracking(conf->mds_enable_op_tracker); | |
3551 | } | |
3552 | if (changed.count("clog_to_monitors") || | |
3553 | changed.count("clog_to_syslog") || | |
3554 | changed.count("clog_to_syslog_level") || | |
3555 | changed.count("clog_to_syslog_facility") || | |
3556 | changed.count("clog_to_graylog") || | |
3557 | changed.count("clog_to_graylog_host") || | |
3558 | changed.count("clog_to_graylog_port") || | |
3559 | changed.count("host") || | |
3560 | changed.count("fsid")) { | |
3561 | update_log_config(); | |
3562 | } | |
3563 | ||
9f95a23c | 3564 | finisher->queue(new LambdaContext([this, changed](int) { |
92f5a8d4 TL |
3565 | std::scoped_lock lock(mds_lock); |
3566 | ||
3567 | if (changed.count("mds_log_pause") && !g_conf()->mds_log_pause) { | |
3568 | mdlog->kick_submitter(); | |
3569 | } | |
3570 | sessionmap.handle_conf_change(changed); | |
3571 | server->handle_conf_change(changed); | |
3572 | mdcache->handle_conf_change(changed, *mdsmap); | |
3573 | purge_queue.handle_conf_change(changed, *mdsmap); | |
3574 | })); | |
3575 | } | |
9f95a23c TL |
3576 | |
3577 | void MDSRank::get_task_status(std::map<std::string, std::string> *status) { | |
3578 | dout(20) << __func__ << dendl; | |
3579 | ||
3580 | // scrub summary for now.. | |
3581 | std::string_view scrub_summary = scrubstack->scrub_summary(); | |
3582 | status->emplace(SCRUB_STATUS_KEY, std::move(scrub_summary)); | |
3583 | } | |
3584 | ||
3585 | void MDSRank::schedule_update_timer_task() { | |
3586 | dout(20) << __func__ << dendl; | |
3587 | ||
3588 | timer.add_event_after(g_conf().get_val<double>("mds_task_status_update_interval"), | |
3589 | new LambdaContext([this](int) { | |
3590 | send_task_status(); | |
3591 | })); | |
3592 | } | |
3593 | ||
3594 | void MDSRank::send_task_status() { | |
3595 | std::map<std::string, std::string> status; | |
3596 | get_task_status(&status); | |
3597 | ||
3598 | if (!status.empty()) { | |
3599 | dout(20) << __func__ << ": updating " << status.size() << " status keys" << dendl; | |
3600 | ||
3601 | int r = mgrc->service_daemon_update_task_status(std::move(status)); | |
3602 | if (r < 0) { | |
3603 | derr << ": failed to update service daemon status: " << cpp_strerror(r) << dendl; | |
3604 | } | |
3605 | } | |
3606 | ||
3607 | schedule_update_timer_task(); | |
3608 | } |