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7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 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> |
f67539c2 | 16 | #include <typeinfo> |
7c673cae FG |
17 | #include "common/debug.h" |
18 | #include "common/errno.h" | |
a4b75251 | 19 | #include "common/likely.h" |
f67539c2 | 20 | #include "common/async/blocked_completion.h" |
7c673cae FG |
21 | |
22 | #include "messages/MClientRequestForward.h" | |
23 | #include "messages/MMDSLoadTargets.h" | |
7c673cae | 24 | #include "messages/MMDSTableRequest.h" |
f67539c2 | 25 | #include "messages/MMDSMetrics.h" |
7c673cae | 26 | |
9f95a23c TL |
27 | #include "mgr/MgrClient.h" |
28 | ||
7c673cae FG |
29 | #include "MDSDaemon.h" |
30 | #include "MDSMap.h" | |
f67539c2 | 31 | #include "MetricAggregator.h" |
7c673cae FG |
32 | #include "SnapClient.h" |
33 | #include "SnapServer.h" | |
34 | #include "MDBalancer.h" | |
91327a77 | 35 | #include "Migrator.h" |
7c673cae | 36 | #include "Locker.h" |
7c673cae FG |
37 | #include "InoTable.h" |
38 | #include "mon/MonClient.h" | |
39 | #include "common/HeartbeatMap.h" | |
40 | #include "ScrubStack.h" | |
aee94f69 | 41 | #include "Mutation.h" |
7c673cae FG |
42 | |
43 | ||
44 | #include "MDSRank.h" | |
45 | ||
46 | #define dout_context g_ceph_context | |
47 | #define dout_subsys ceph_subsys_mds | |
48 | #undef dout_prefix | |
49 | #define dout_prefix *_dout << "mds." << whoami << '.' << incarnation << ' ' | |
20effc67 TL |
50 | |
51 | using std::ostream; | |
52 | using std::set; | |
53 | using std::string; | |
54 | using std::vector; | |
9f95a23c | 55 | using TOPNSPC::common::cmd_getval; |
20effc67 | 56 | |
f64942e4 AA |
57 | class C_Flush_Journal : public MDSInternalContext { |
58 | public: | |
59 | C_Flush_Journal(MDCache *mdcache, MDLog *mdlog, MDSRank *mds, | |
60 | std::ostream *ss, Context *on_finish) | |
61 | : MDSInternalContext(mds), | |
62 | mdcache(mdcache), mdlog(mdlog), ss(ss), on_finish(on_finish), | |
63 | whoami(mds->whoami), incarnation(mds->incarnation) { | |
64 | } | |
65 | ||
66 | void send() { | |
20effc67 | 67 | ceph_assert(ceph_mutex_is_locked(mds->mds_lock)); |
f64942e4 AA |
68 | |
69 | dout(20) << __func__ << dendl; | |
70 | ||
71 | if (mdcache->is_readonly()) { | |
72 | dout(5) << __func__ << ": read-only FS" << dendl; | |
f67539c2 | 73 | complete(-CEPHFS_EROFS); |
f64942e4 AA |
74 | return; |
75 | } | |
76 | ||
77 | if (!mds->is_active()) { | |
78 | dout(5) << __func__ << ": MDS not active, no-op" << dendl; | |
79 | complete(0); | |
80 | return; | |
81 | } | |
82 | ||
83 | flush_mdlog(); | |
84 | } | |
85 | ||
86 | private: | |
87 | ||
88 | void flush_mdlog() { | |
89 | dout(20) << __func__ << dendl; | |
90 | ||
91 | // I need to seal off the current segment, and then mark all | |
92 | // previous segments for expiry | |
93 | mdlog->start_new_segment(); | |
94 | ||
9f95a23c | 95 | Context *ctx = new LambdaContext([this](int r) { |
f64942e4 AA |
96 | handle_flush_mdlog(r); |
97 | }); | |
98 | ||
99 | // Flush initially so that all the segments older than our new one | |
100 | // will be elegible for expiry | |
101 | mdlog->flush(); | |
102 | mdlog->wait_for_safe(new MDSInternalContextWrapper(mds, ctx)); | |
103 | } | |
104 | ||
105 | void handle_flush_mdlog(int r) { | |
106 | dout(20) << __func__ << ": r=" << r << dendl; | |
107 | ||
108 | if (r != 0) { | |
109 | *ss << "Error " << r << " (" << cpp_strerror(r) << ") while flushing journal"; | |
110 | complete(r); | |
111 | return; | |
112 | } | |
113 | ||
114 | clear_mdlog(); | |
115 | } | |
116 | ||
117 | void clear_mdlog() { | |
118 | dout(20) << __func__ << dendl; | |
119 | ||
9f95a23c | 120 | Context *ctx = new LambdaContext([this](int r) { |
f64942e4 AA |
121 | handle_clear_mdlog(r); |
122 | }); | |
123 | ||
124 | // Because we may not be the last wait_for_safe context on MDLog, | |
125 | // and subsequent contexts might wake up in the middle of our | |
126 | // later trim_all and interfere with expiry (by e.g. marking | |
127 | // dirs/dentries dirty on previous log segments), we run a second | |
128 | // wait_for_safe here. See #10368 | |
129 | mdlog->wait_for_safe(new MDSInternalContextWrapper(mds, ctx)); | |
130 | } | |
131 | ||
132 | void handle_clear_mdlog(int r) { | |
133 | dout(20) << __func__ << ": r=" << r << dendl; | |
134 | ||
135 | if (r != 0) { | |
136 | *ss << "Error " << r << " (" << cpp_strerror(r) << ") while flushing journal"; | |
137 | complete(r); | |
138 | return; | |
139 | } | |
140 | ||
141 | trim_mdlog(); | |
142 | } | |
143 | ||
144 | void trim_mdlog() { | |
145 | // Put all the old log segments into expiring or expired state | |
146 | dout(5) << __func__ << ": beginning segment expiry" << dendl; | |
147 | ||
148 | int ret = mdlog->trim_all(); | |
149 | if (ret != 0) { | |
150 | *ss << "Error " << ret << " (" << cpp_strerror(ret) << ") while trimming log"; | |
151 | complete(ret); | |
152 | return; | |
153 | } | |
154 | ||
155 | expire_segments(); | |
156 | } | |
157 | ||
158 | void expire_segments() { | |
159 | dout(20) << __func__ << dendl; | |
160 | ||
161 | // Attach contexts to wait for all expiring segments to expire | |
f91f0fd5 | 162 | MDSGatherBuilder expiry_gather(g_ceph_context); |
f64942e4 AA |
163 | |
164 | const auto &expiring_segments = mdlog->get_expiring_segments(); | |
165 | for (auto p : expiring_segments) { | |
f91f0fd5 | 166 | p->wait_for_expiry(expiry_gather.new_sub()); |
f64942e4 | 167 | } |
f91f0fd5 | 168 | dout(5) << __func__ << ": waiting for " << expiry_gather.num_subs_created() |
f64942e4 AA |
169 | << " segments to expire" << dendl; |
170 | ||
f91f0fd5 | 171 | if (!expiry_gather.has_subs()) { |
f64942e4 | 172 | trim_segments(); |
f64942e4 AA |
173 | return; |
174 | } | |
175 | ||
9f95a23c | 176 | Context *ctx = new LambdaContext([this](int r) { |
f64942e4 AA |
177 | handle_expire_segments(r); |
178 | }); | |
f91f0fd5 TL |
179 | expiry_gather.set_finisher(new MDSInternalContextWrapper(mds, ctx)); |
180 | expiry_gather.activate(); | |
f64942e4 AA |
181 | } |
182 | ||
183 | void handle_expire_segments(int r) { | |
184 | dout(20) << __func__ << ": r=" << r << dendl; | |
185 | ||
186 | ceph_assert(r == 0); // MDLog is not allowed to raise errors via | |
187 | // wait_for_expiry | |
188 | trim_segments(); | |
189 | } | |
190 | ||
191 | void trim_segments() { | |
192 | dout(20) << __func__ << dendl; | |
193 | ||
9f95a23c | 194 | Context *ctx = new C_OnFinisher(new LambdaContext([this](int) { |
11fdf7f2 | 195 | std::lock_guard locker(mds->mds_lock); |
f64942e4 AA |
196 | trim_expired_segments(); |
197 | }), mds->finisher); | |
198 | ctx->complete(0); | |
199 | } | |
200 | ||
201 | void trim_expired_segments() { | |
202 | dout(5) << __func__ << ": expiry complete, expire_pos/trim_pos is now " | |
203 | << std::hex << mdlog->get_journaler()->get_expire_pos() << "/" | |
204 | << mdlog->get_journaler()->get_trimmed_pos() << dendl; | |
205 | ||
206 | // Now everyone I'm interested in is expired | |
207 | mdlog->trim_expired_segments(); | |
208 | ||
209 | dout(5) << __func__ << ": trim complete, expire_pos/trim_pos is now " | |
210 | << std::hex << mdlog->get_journaler()->get_expire_pos() << "/" | |
211 | << mdlog->get_journaler()->get_trimmed_pos() << dendl; | |
212 | ||
213 | write_journal_head(); | |
214 | } | |
215 | ||
216 | void write_journal_head() { | |
217 | dout(20) << __func__ << dendl; | |
218 | ||
9f95a23c | 219 | Context *ctx = new LambdaContext([this](int r) { |
11fdf7f2 | 220 | std::lock_guard locker(mds->mds_lock); |
f64942e4 AA |
221 | handle_write_head(r); |
222 | }); | |
223 | // Flush the journal header so that readers will start from after | |
224 | // the flushed region | |
225 | mdlog->get_journaler()->write_head(ctx); | |
226 | } | |
227 | ||
228 | void handle_write_head(int r) { | |
229 | if (r != 0) { | |
230 | *ss << "Error " << r << " (" << cpp_strerror(r) << ") while writing header"; | |
231 | } else { | |
232 | dout(5) << __func__ << ": write_head complete, all done!" << dendl; | |
233 | } | |
234 | ||
235 | complete(r); | |
236 | } | |
237 | ||
238 | void finish(int r) override { | |
239 | dout(20) << __func__ << ": r=" << r << dendl; | |
240 | on_finish->complete(r); | |
241 | } | |
242 | ||
243 | MDCache *mdcache; | |
244 | MDLog *mdlog; | |
245 | std::ostream *ss; | |
246 | Context *on_finish; | |
247 | ||
248 | // so as to use dout | |
249 | mds_rank_t whoami; | |
250 | int incarnation; | |
251 | }; | |
252 | ||
253 | class C_Drop_Cache : public MDSInternalContext { | |
254 | public: | |
255 | C_Drop_Cache(Server *server, MDCache *mdcache, MDLog *mdlog, | |
256 | MDSRank *mds, uint64_t recall_timeout, | |
257 | Formatter *f, Context *on_finish) | |
258 | : MDSInternalContext(mds), | |
259 | server(server), mdcache(mdcache), mdlog(mdlog), | |
a8e16298 TL |
260 | recall_timeout(recall_timeout), recall_start(mono_clock::now()), |
261 | f(f), on_finish(on_finish), | |
f64942e4 AA |
262 | whoami(mds->whoami), incarnation(mds->incarnation) { |
263 | } | |
264 | ||
265 | void send() { | |
266 | // not really a hard requirement here, but lets ensure this in | |
267 | // case we change the logic here. | |
20effc67 | 268 | ceph_assert(ceph_mutex_is_locked(mds->mds_lock)); |
f64942e4 AA |
269 | |
270 | dout(20) << __func__ << dendl; | |
a8e16298 | 271 | f->open_object_section("result"); |
f64942e4 AA |
272 | recall_client_state(); |
273 | } | |
274 | ||
275 | private: | |
f67539c2 | 276 | // context which completes itself (with -CEPHFS_ETIMEDOUT) after a specified |
f64942e4 AA |
277 | // timeout or when explicitly completed, whichever comes first. Note |
278 | // that the context does not detroy itself after completion -- it | |
279 | // needs to be explicitly freed. | |
280 | class C_ContextTimeout : public MDSInternalContext { | |
281 | public: | |
282 | C_ContextTimeout(MDSRank *mds, uint64_t timeout, Context *on_finish) | |
283 | : MDSInternalContext(mds), | |
284 | timeout(timeout), | |
f64942e4 AA |
285 | on_finish(on_finish) { |
286 | } | |
287 | ~C_ContextTimeout() { | |
288 | ceph_assert(timer_task == nullptr); | |
289 | } | |
290 | ||
291 | void start_timer() { | |
292 | if (!timeout) { | |
293 | return; | |
294 | } | |
295 | ||
9f95a23c | 296 | timer_task = new LambdaContext([this](int) { |
f64942e4 | 297 | timer_task = nullptr; |
f67539c2 | 298 | complete(-CEPHFS_ETIMEDOUT); |
f64942e4 AA |
299 | }); |
300 | mds->timer.add_event_after(timeout, timer_task); | |
301 | } | |
302 | ||
303 | void finish(int r) override { | |
304 | Context *ctx = nullptr; | |
305 | { | |
11fdf7f2 | 306 | std::lock_guard locker(lock); |
f64942e4 AA |
307 | std::swap(on_finish, ctx); |
308 | } | |
309 | if (ctx != nullptr) { | |
310 | ctx->complete(r); | |
311 | } | |
312 | } | |
313 | void complete(int r) override { | |
314 | if (timer_task != nullptr) { | |
315 | mds->timer.cancel_event(timer_task); | |
316 | } | |
317 | ||
318 | finish(r); | |
319 | } | |
320 | ||
321 | uint64_t timeout; | |
9f95a23c | 322 | ceph::mutex lock = ceph::make_mutex("mds::context::timeout"); |
f64942e4 AA |
323 | Context *on_finish = nullptr; |
324 | Context *timer_task = nullptr; | |
325 | }; | |
326 | ||
11fdf7f2 TL |
327 | auto do_trim() { |
328 | auto [throttled, count] = mdcache->trim(UINT64_MAX); | |
329 | dout(10) << __func__ | |
330 | << (throttled ? " (throttled)" : "") | |
331 | << " trimmed " << count << " caps" << dendl; | |
332 | dentries_trimmed += count; | |
333 | return std::make_pair(throttled, count); | |
334 | } | |
335 | ||
f64942e4 AA |
336 | void recall_client_state() { |
337 | dout(20) << __func__ << dendl; | |
a8e16298 TL |
338 | auto now = mono_clock::now(); |
339 | auto duration = std::chrono::duration<double>(now-recall_start).count(); | |
f64942e4 | 340 | |
f91f0fd5 | 341 | MDSGatherBuilder gather(g_ceph_context); |
92f5a8d4 | 342 | auto flags = Server::RecallFlags::STEADY|Server::RecallFlags::TRIM; |
f91f0fd5 | 343 | auto [throttled, count] = server->recall_client_state(&gather, flags); |
a8e16298 TL |
344 | dout(10) << __func__ |
345 | << (throttled ? " (throttled)" : "") | |
346 | << " recalled " << count << " caps" << dendl; | |
347 | ||
348 | caps_recalled += count; | |
349 | if ((throttled || count > 0) && (recall_timeout == 0 || duration < recall_timeout)) { | |
11fdf7f2 | 350 | C_ContextTimeout *ctx = new C_ContextTimeout( |
9f95a23c | 351 | mds, 1, new LambdaContext([this](int r) { |
11fdf7f2 TL |
352 | recall_client_state(); |
353 | })); | |
354 | ctx->start_timer(); | |
f91f0fd5 TL |
355 | gather.set_finisher(new MDSInternalContextWrapper(mds, ctx)); |
356 | gather.activate(); | |
11fdf7f2 TL |
357 | mdlog->flush(); /* use down-time to incrementally flush log */ |
358 | do_trim(); /* use down-time to incrementally trim cache */ | |
a8e16298 | 359 | } else { |
f91f0fd5 | 360 | if (!gather.has_subs()) { |
a8e16298 TL |
361 | return handle_recall_client_state(0); |
362 | } else if (recall_timeout > 0 && duration > recall_timeout) { | |
f91f0fd5 TL |
363 | gather.set_finisher(new C_MDSInternalNoop); |
364 | gather.activate(); | |
f67539c2 | 365 | return handle_recall_client_state(-CEPHFS_ETIMEDOUT); |
a8e16298 TL |
366 | } else { |
367 | uint64_t remaining = (recall_timeout == 0 ? 0 : recall_timeout-duration); | |
368 | C_ContextTimeout *ctx = new C_ContextTimeout( | |
9f95a23c | 369 | mds, remaining, new LambdaContext([this](int r) { |
a8e16298 TL |
370 | handle_recall_client_state(r); |
371 | })); | |
372 | ||
373 | ctx->start_timer(); | |
f91f0fd5 TL |
374 | gather.set_finisher(new MDSInternalContextWrapper(mds, ctx)); |
375 | gather.activate(); | |
a8e16298 | 376 | } |
f64942e4 | 377 | } |
f64942e4 AA |
378 | } |
379 | ||
380 | void handle_recall_client_state(int r) { | |
381 | dout(20) << __func__ << ": r=" << r << dendl; | |
382 | ||
383 | // client recall section | |
384 | f->open_object_section("client_recall"); | |
385 | f->dump_int("return_code", r); | |
386 | f->dump_string("message", cpp_strerror(r)); | |
a8e16298 | 387 | f->dump_int("recalled", caps_recalled); |
f64942e4 AA |
388 | f->close_section(); |
389 | ||
390 | // we can still continue after recall timeout | |
f64942e4 AA |
391 | flush_journal(); |
392 | } | |
393 | ||
394 | void flush_journal() { | |
395 | dout(20) << __func__ << dendl; | |
396 | ||
9f95a23c | 397 | Context *ctx = new LambdaContext([this](int r) { |
f64942e4 AA |
398 | handle_flush_journal(r); |
399 | }); | |
400 | ||
401 | C_Flush_Journal *flush_journal = new C_Flush_Journal(mdcache, mdlog, mds, &ss, ctx); | |
402 | flush_journal->send(); | |
403 | } | |
404 | ||
405 | void handle_flush_journal(int r) { | |
406 | dout(20) << __func__ << ": r=" << r << dendl; | |
407 | ||
408 | if (r != 0) { | |
409 | cmd_err(f, ss.str()); | |
410 | complete(r); | |
411 | return; | |
412 | } | |
413 | ||
414 | // journal flush section | |
415 | f->open_object_section("flush_journal"); | |
416 | f->dump_int("return_code", r); | |
417 | f->dump_string("message", ss.str()); | |
418 | f->close_section(); | |
419 | ||
a8e16298 TL |
420 | trim_cache(); |
421 | } | |
422 | ||
423 | void trim_cache() { | |
424 | dout(20) << __func__ << dendl; | |
425 | ||
11fdf7f2 | 426 | auto [throttled, count] = do_trim(); |
a8e16298 | 427 | if (throttled && count > 0) { |
9f95a23c | 428 | auto timer = new LambdaContext([this](int) { |
a8e16298 TL |
429 | trim_cache(); |
430 | }); | |
431 | mds->timer.add_event_after(1.0, timer); | |
432 | } else { | |
433 | cache_status(); | |
434 | } | |
f64942e4 AA |
435 | } |
436 | ||
437 | void cache_status() { | |
438 | dout(20) << __func__ << dendl; | |
439 | ||
a8e16298 TL |
440 | f->open_object_section("trim_cache"); |
441 | f->dump_int("trimmed", dentries_trimmed); | |
442 | f->close_section(); | |
443 | ||
f64942e4 AA |
444 | // cache status section |
445 | mdcache->cache_status(f); | |
f64942e4 AA |
446 | |
447 | complete(0); | |
448 | } | |
449 | ||
450 | void finish(int r) override { | |
451 | dout(20) << __func__ << ": r=" << r << dendl; | |
452 | ||
a8e16298 TL |
453 | auto d = std::chrono::duration<double>(mono_clock::now()-recall_start); |
454 | f->dump_float("duration", d.count()); | |
455 | ||
456 | f->close_section(); | |
f64942e4 AA |
457 | on_finish->complete(r); |
458 | } | |
459 | ||
460 | Server *server; | |
461 | MDCache *mdcache; | |
462 | MDLog *mdlog; | |
463 | uint64_t recall_timeout; | |
a8e16298 | 464 | mono_time recall_start; |
f64942e4 AA |
465 | Formatter *f; |
466 | Context *on_finish; | |
467 | ||
468 | int retval = 0; | |
469 | std::stringstream ss; | |
a8e16298 TL |
470 | uint64_t caps_recalled = 0; |
471 | uint64_t dentries_trimmed = 0; | |
f64942e4 AA |
472 | |
473 | // so as to use dout | |
474 | mds_rank_t whoami; | |
475 | int incarnation; | |
476 | ||
11fdf7f2 | 477 | void cmd_err(Formatter *f, std::string_view err) { |
f64942e4 AA |
478 | f->reset(); |
479 | f->open_object_section("result"); | |
480 | f->dump_string("error", err); | |
481 | f->close_section(); | |
482 | } | |
483 | }; | |
484 | ||
7c673cae FG |
485 | MDSRank::MDSRank( |
486 | mds_rank_t whoami_, | |
a4b75251 | 487 | ceph::fair_mutex &mds_lock_, |
7c673cae | 488 | LogChannelRef &clog_, |
a4b75251 | 489 | CommonSafeTimer<ceph::fair_mutex> &timer_, |
7c673cae | 490 | Beacon &beacon_, |
11fdf7f2 | 491 | std::unique_ptr<MDSMap>& mdsmap_, |
7c673cae FG |
492 | Messenger *msgr, |
493 | MonClient *monc_, | |
9f95a23c | 494 | MgrClient *mgrc, |
7c673cae | 495 | Context *respawn_hook_, |
f67539c2 TL |
496 | Context *suicide_hook_, |
497 | boost::asio::io_context& ioc) : | |
9f95a23c TL |
498 | cct(msgr->cct), mds_lock(mds_lock_), clog(clog_), |
499 | timer(timer_), mdsmap(mdsmap_), | |
f67539c2 | 500 | objecter(new Objecter(g_ceph_context, msgr, monc_, ioc)), |
9f95a23c | 501 | damage_table(whoami_), sessionmap(this), |
11fdf7f2 TL |
502 | op_tracker(g_ceph_context, g_conf()->mds_enable_op_tracker, |
503 | g_conf()->osd_num_op_tracker_shard), | |
20effc67 | 504 | progress_thread(this), whoami(whoami_), |
7c673cae FG |
505 | purge_queue(g_ceph_context, whoami_, |
506 | mdsmap_->get_metadata_pool(), objecter, | |
9f95a23c TL |
507 | new LambdaContext([this](int r) { |
508 | std::lock_guard l(mds_lock); | |
509 | handle_write_error(r); | |
510 | } | |
7c673cae FG |
511 | ) |
512 | ), | |
f67539c2 | 513 | metrics_handler(cct, this), |
9f95a23c TL |
514 | beacon(beacon_), |
515 | messenger(msgr), monc(monc_), mgrc(mgrc), | |
7c673cae FG |
516 | respawn_hook(respawn_hook_), |
517 | suicide_hook(suicide_hook_), | |
1e59de90 | 518 | inject_journal_corrupt_dentry_first(g_conf().get_val<double>("mds_inject_journal_corrupt_dentry_first")), |
f67539c2 TL |
519 | starttime(mono_clock::now()), |
520 | ioc(ioc) | |
7c673cae FG |
521 | { |
522 | hb = g_ceph_context->get_heartbeat_map()->add_worker("MDSRank", pthread_self()); | |
523 | ||
b3b6e05e TL |
524 | // The metadata pool won't change in the whole life time |
525 | // of the fs, with this we can get rid of the mds_lock | |
526 | // in many places too. | |
527 | metadata_pool = mdsmap->get_metadata_pool(); | |
528 | ||
7c673cae FG |
529 | purge_queue.update_op_limit(*mdsmap); |
530 | ||
9f95a23c | 531 | objecter->unset_honor_pool_full(); |
7c673cae | 532 | |
9f95a23c | 533 | finisher = new Finisher(cct, "MDSRank", "MR_Finisher"); |
7c673cae FG |
534 | |
535 | mdcache = new MDCache(this, purge_queue); | |
536 | mdlog = new MDLog(this); | |
537 | balancer = new MDBalancer(this, messenger, monc); | |
538 | ||
9f95a23c | 539 | scrubstack = new ScrubStack(mdcache, clog, finisher); |
7c673cae FG |
540 | |
541 | inotable = new InoTable(this); | |
542 | snapserver = new SnapServer(this, monc); | |
543 | snapclient = new SnapClient(this); | |
544 | ||
f67539c2 | 545 | server = new Server(this, &metrics_handler); |
7c673cae FG |
546 | locker = new Locker(this, mdcache); |
547 | ||
33c7a0ef | 548 | _heartbeat_reset_grace = g_conf().get_val<uint64_t>("mds_heartbeat_reset_grace"); |
f67539c2 | 549 | heartbeat_grace = g_conf().get_val<double>("mds_heartbeat_grace"); |
b32b8144 FG |
550 | op_tracker.set_complaint_and_threshold(cct->_conf->mds_op_complaint_time, |
551 | cct->_conf->mds_op_log_threshold); | |
552 | op_tracker.set_history_size_and_duration(cct->_conf->mds_op_history_size, | |
553 | cct->_conf->mds_op_history_duration); | |
9f95a23c TL |
554 | |
555 | schedule_update_timer_task(); | |
7c673cae FG |
556 | } |
557 | ||
558 | MDSRank::~MDSRank() | |
559 | { | |
560 | if (hb) { | |
561 | g_ceph_context->get_heartbeat_map()->remove_worker(hb); | |
20effc67 | 562 | hb = nullptr; |
7c673cae FG |
563 | } |
564 | ||
565 | if (scrubstack) { delete scrubstack; scrubstack = NULL; } | |
566 | if (mdcache) { delete mdcache; mdcache = NULL; } | |
567 | if (mdlog) { delete mdlog; mdlog = NULL; } | |
568 | if (balancer) { delete balancer; balancer = NULL; } | |
569 | if (inotable) { delete inotable; inotable = NULL; } | |
570 | if (snapserver) { delete snapserver; snapserver = NULL; } | |
571 | if (snapclient) { delete snapclient; snapclient = NULL; } | |
7c673cae FG |
572 | |
573 | if (server) { delete server; server = 0; } | |
574 | if (locker) { delete locker; locker = 0; } | |
575 | ||
576 | if (logger) { | |
577 | g_ceph_context->get_perfcounters_collection()->remove(logger); | |
578 | delete logger; | |
579 | logger = 0; | |
580 | } | |
581 | if (mlogger) { | |
582 | g_ceph_context->get_perfcounters_collection()->remove(mlogger); | |
583 | delete mlogger; | |
584 | mlogger = 0; | |
585 | } | |
586 | ||
587 | delete finisher; | |
588 | finisher = NULL; | |
589 | ||
590 | delete suicide_hook; | |
591 | suicide_hook = NULL; | |
592 | ||
593 | delete respawn_hook; | |
594 | respawn_hook = NULL; | |
595 | ||
596 | delete objecter; | |
597 | objecter = nullptr; | |
598 | } | |
599 | ||
600 | void MDSRankDispatcher::init() | |
601 | { | |
602 | objecter->init(); | |
603 | messenger->add_dispatcher_head(objecter); | |
604 | ||
605 | objecter->start(); | |
606 | ||
607 | update_log_config(); | |
608 | create_logger(); | |
609 | ||
610 | // Expose the OSDMap (already populated during MDS::init) to anyone | |
611 | // who is interested in it. | |
612 | handle_osd_map(); | |
613 | ||
614 | progress_thread.create("mds_rank_progr"); | |
615 | ||
616 | purge_queue.init(); | |
617 | ||
618 | finisher->start(); | |
619 | } | |
620 | ||
11fdf7f2 | 621 | void MDSRank::update_targets() |
7c673cae FG |
622 | { |
623 | // get MonMap's idea of my export_targets | |
624 | const set<mds_rank_t>& map_targets = mdsmap->get_mds_info(get_nodeid()).export_targets; | |
625 | ||
626 | dout(20) << "updating export targets, currently " << map_targets.size() << " ranks are targets" << dendl; | |
627 | ||
628 | bool send = false; | |
629 | set<mds_rank_t> new_map_targets; | |
630 | ||
631 | auto it = export_targets.begin(); | |
632 | while (it != export_targets.end()) { | |
633 | mds_rank_t rank = it->first; | |
11fdf7f2 TL |
634 | auto &counter = it->second; |
635 | dout(20) << "export target mds." << rank << " is " << counter << dendl; | |
7c673cae | 636 | |
11fdf7f2 | 637 | double val = counter.get(); |
7c673cae FG |
638 | if (val <= 0.01) { |
639 | dout(15) << "export target mds." << rank << " is no longer an export target" << dendl; | |
640 | export_targets.erase(it++); | |
641 | send = true; | |
642 | continue; | |
643 | } | |
644 | if (!map_targets.count(rank)) { | |
645 | dout(15) << "export target mds." << rank << " not in map's export_targets" << dendl; | |
646 | send = true; | |
647 | } | |
648 | new_map_targets.insert(rank); | |
649 | it++; | |
650 | } | |
651 | if (new_map_targets.size() < map_targets.size()) { | |
652 | dout(15) << "export target map holds stale targets, sending update" << dendl; | |
653 | send = true; | |
654 | } | |
655 | ||
656 | if (send) { | |
657 | dout(15) << "updating export_targets, now " << new_map_targets.size() << " ranks are targets" << dendl; | |
9f95a23c | 658 | auto m = make_message<MMDSLoadTargets>(mds_gid_t(monc->get_global_id()), new_map_targets); |
11fdf7f2 | 659 | monc->send_mon_message(m.detach()); |
7c673cae FG |
660 | } |
661 | } | |
662 | ||
11fdf7f2 | 663 | void MDSRank::hit_export_target(mds_rank_t rank, double amount) |
7c673cae | 664 | { |
11fdf7f2 | 665 | double rate = g_conf()->mds_bal_target_decay; |
7c673cae | 666 | if (amount < 0.0) { |
11fdf7f2 | 667 | amount = 100.0/g_conf()->mds_bal_target_decay; /* a good default for "i am trying to keep this export_target active" */ |
7c673cae | 668 | } |
11fdf7f2 TL |
669 | auto em = export_targets.emplace(std::piecewise_construct, std::forward_as_tuple(rank), std::forward_as_tuple(DecayRate(rate))); |
670 | auto &counter = em.first->second; | |
671 | counter.hit(amount); | |
7c673cae | 672 | if (em.second) { |
11fdf7f2 TL |
673 | dout(15) << "hit export target (new) is " << counter << dendl; |
674 | } else { | |
675 | dout(15) << "hit export target is " << counter << dendl; | |
676 | } | |
677 | } | |
678 | ||
679 | class C_MDS_MonCommand : public MDSInternalContext { | |
680 | std::string cmd; | |
681 | public: | |
682 | std::string outs; | |
683 | C_MDS_MonCommand(MDSRank *m, std::string_view c) | |
684 | : MDSInternalContext(m), cmd(c) {} | |
685 | void finish(int r) override { | |
686 | mds->_mon_command_finish(r, cmd, outs); | |
687 | } | |
688 | }; | |
689 | ||
690 | void MDSRank::_mon_command_finish(int r, std::string_view cmd, std::string_view outs) | |
691 | { | |
692 | if (r < 0) { | |
693 | dout(0) << __func__ << ": mon command " << cmd << " failed with errno " << r | |
694 | << " (" << outs << ")" << dendl; | |
7c673cae | 695 | } else { |
11fdf7f2 | 696 | dout(1) << __func__ << ": mon command " << cmd << " succeed" << dendl; |
7c673cae | 697 | } |
11fdf7f2 TL |
698 | } |
699 | ||
700 | void MDSRank::set_mdsmap_multimds_snaps_allowed() | |
701 | { | |
702 | static bool already_sent = false; | |
703 | if (already_sent) | |
704 | return; | |
705 | ||
f67539c2 TL |
706 | CachedStackStringStream css; |
707 | *css << "{\"prefix\":\"fs set\", \"fs_name\":\"" << mdsmap->get_fs_name() << "\", "; | |
708 | *css << "\"var\":\"allow_multimds_snaps\", \"val\":\"true\", "; | |
709 | *css << "\"confirm\":\"--yes-i-am-really-a-mds\"}"; | |
710 | std::vector<std::string> cmd = {css->str()}; | |
11fdf7f2 TL |
711 | |
712 | dout(0) << __func__ << ": sending mon command: " << cmd[0] << dendl; | |
713 | ||
714 | C_MDS_MonCommand *fin = new C_MDS_MonCommand(this, cmd[0]); | |
715 | monc->start_mon_command(cmd, {}, nullptr, &fin->outs, new C_IO_Wrapper(this, fin)); | |
716 | ||
717 | already_sent = true; | |
718 | } | |
719 | ||
7c673cae FG |
720 | void MDSRankDispatcher::tick() |
721 | { | |
722 | heartbeat_reset(); | |
723 | ||
724 | if (beacon.is_laggy()) { | |
91327a77 | 725 | dout(1) << "skipping upkeep work because connection to Monitors appears laggy" << dendl; |
7c673cae FG |
726 | return; |
727 | } | |
728 | ||
729 | check_ops_in_flight(); | |
730 | ||
731 | // Wake up thread in case we use to be laggy and have waiting_for_nolaggy | |
732 | // messages to progress. | |
733 | progress_thread.signal(); | |
734 | ||
735 | // make sure mds log flushes, trims periodically | |
736 | mdlog->flush(); | |
737 | ||
91327a77 AA |
738 | // update average session uptime |
739 | sessionmap.update_average_session_age(); | |
740 | ||
7c673cae | 741 | if (is_active() || is_stopping()) { |
7c673cae FG |
742 | mdlog->trim(); // NOT during recovery! |
743 | } | |
744 | ||
7c673cae | 745 | // ... |
b3b6e05e | 746 | if (is_clientreplay() || is_active() || is_stopping()) { |
7c673cae | 747 | server->find_idle_sessions(); |
91327a77 | 748 | server->evict_cap_revoke_non_responders(); |
7c673cae FG |
749 | locker->tick(); |
750 | } | |
751 | ||
11fdf7f2 TL |
752 | // log |
753 | if (logger) { | |
754 | logger->set(l_mds_subtrees, mdcache->num_subtrees()); | |
755 | mdcache->log_stat(); | |
756 | } | |
757 | ||
7c673cae FG |
758 | if (is_reconnect()) |
759 | server->reconnect_tick(); | |
760 | ||
761 | if (is_active()) { | |
762 | balancer->tick(); | |
763 | mdcache->find_stale_fragment_freeze(); | |
764 | mdcache->migrator->find_stale_export_freeze(); | |
11fdf7f2 TL |
765 | |
766 | if (mdsmap->get_tableserver() == whoami) { | |
7c673cae | 767 | snapserver->check_osd_map(false); |
11fdf7f2 TL |
768 | // Filesystem was created by pre-mimic mds. Allow multi-active mds after |
769 | // all old snapshots are deleted. | |
770 | if (!mdsmap->allows_multimds_snaps() && | |
771 | snapserver->can_allow_multimds_snaps()) { | |
772 | set_mdsmap_multimds_snaps_allowed(); | |
773 | } | |
774 | } | |
f67539c2 TL |
775 | |
776 | if (whoami == 0) | |
777 | scrubstack->advance_scrub_status(); | |
7c673cae FG |
778 | } |
779 | ||
780 | if (is_active() || is_stopping()) { | |
11fdf7f2 | 781 | update_targets(); |
7c673cae FG |
782 | } |
783 | ||
784 | // shut down? | |
785 | if (is_stopping()) { | |
786 | mdlog->trim(); | |
787 | if (mdcache->shutdown_pass()) { | |
788 | uint64_t pq_progress = 0 ; | |
789 | uint64_t pq_total = 0; | |
790 | size_t pq_in_flight = 0; | |
791 | if (!purge_queue.drain(&pq_progress, &pq_total, &pq_in_flight)) { | |
792 | dout(7) << "shutdown_pass=true, but still waiting for purge queue" | |
793 | << dendl; | |
794 | // This takes unbounded time, so we must indicate progress | |
795 | // to the administrator: we do it in a slightly imperfect way | |
796 | // by sending periodic (tick frequency) clog messages while | |
797 | // in this state. | |
798 | clog->info() << "MDS rank " << whoami << " waiting for purge queue (" | |
799 | << std::dec << pq_progress << "/" << pq_total << " " << pq_in_flight | |
800 | << " files purging" << ")"; | |
801 | } else { | |
802 | dout(7) << "shutdown_pass=true, finished w/ shutdown, moving to " | |
803 | "down:stopped" << dendl; | |
804 | stopping_done(); | |
805 | } | |
806 | } | |
807 | else { | |
808 | dout(7) << "shutdown_pass=false" << dendl; | |
809 | } | |
810 | } | |
811 | ||
812 | // Expose ourselves to Beacon to update health indicators | |
813 | beacon.notify_health(this); | |
814 | } | |
815 | ||
816 | void MDSRankDispatcher::shutdown() | |
817 | { | |
818 | // It should never be possible for shutdown to get called twice, because | |
819 | // anyone picking up mds_lock checks if stopping is true and drops | |
820 | // out if it is. | |
11fdf7f2 | 821 | ceph_assert(stopping == false); |
7c673cae FG |
822 | stopping = true; |
823 | ||
824 | dout(1) << __func__ << ": shutting down rank " << whoami << dendl; | |
825 | ||
92f5a8d4 TL |
826 | g_conf().remove_observer(this); |
827 | ||
7c673cae FG |
828 | timer.shutdown(); |
829 | ||
830 | // MDLog has to shut down before the finisher, because some of its | |
831 | // threads block on IOs that require finisher to complete. | |
832 | mdlog->shutdown(); | |
833 | ||
834 | // shut down cache | |
835 | mdcache->shutdown(); | |
836 | ||
837 | purge_queue.shutdown(); | |
838 | ||
f67539c2 TL |
839 | // shutdown metrics handler/updater -- this is ok even if it was not |
840 | // inited. | |
841 | metrics_handler.shutdown(); | |
842 | ||
843 | // shutdown metric aggergator | |
844 | if (metric_aggregator != nullptr) { | |
845 | metric_aggregator->shutdown(); | |
846 | } | |
847 | ||
9f95a23c | 848 | mds_lock.unlock(); |
7c673cae | 849 | finisher->stop(); // no flushing |
9f95a23c | 850 | mds_lock.lock(); |
7c673cae | 851 | |
31f18b77 | 852 | if (objecter->initialized) |
7c673cae FG |
853 | objecter->shutdown(); |
854 | ||
855 | monc->shutdown(); | |
856 | ||
857 | op_tracker.on_shutdown(); | |
858 | ||
859 | progress_thread.shutdown(); | |
860 | ||
861 | // release mds_lock for finisher/messenger threads (e.g. | |
862 | // MDSDaemon::ms_handle_reset called from Messenger). | |
9f95a23c | 863 | mds_lock.unlock(); |
7c673cae FG |
864 | |
865 | // shut down messenger | |
866 | messenger->shutdown(); | |
867 | ||
9f95a23c | 868 | mds_lock.lock(); |
7c673cae FG |
869 | |
870 | // Workaround unclean shutdown: HeartbeatMap will assert if | |
871 | // worker is not removed (as we do in ~MDS), but ~MDS is not | |
872 | // always called after suicide. | |
873 | if (hb) { | |
874 | g_ceph_context->get_heartbeat_map()->remove_worker(hb); | |
875 | hb = NULL; | |
876 | } | |
877 | } | |
878 | ||
879 | /** | |
880 | * Helper for simple callbacks that call a void fn with no args. | |
881 | */ | |
882 | class C_MDS_VoidFn : public MDSInternalContext | |
883 | { | |
884 | typedef void (MDSRank::*fn_ptr)(); | |
885 | protected: | |
886 | fn_ptr fn; | |
887 | public: | |
888 | C_MDS_VoidFn(MDSRank *mds_, fn_ptr fn_) | |
889 | : MDSInternalContext(mds_), fn(fn_) | |
890 | { | |
11fdf7f2 TL |
891 | ceph_assert(mds_); |
892 | ceph_assert(fn_); | |
7c673cae FG |
893 | } |
894 | ||
895 | void finish(int r) override | |
896 | { | |
897 | (mds->*fn)(); | |
898 | } | |
899 | }; | |
900 | ||
7c673cae FG |
901 | MDSTableClient *MDSRank::get_table_client(int t) |
902 | { | |
903 | switch (t) { | |
904 | case TABLE_ANCHOR: return NULL; | |
905 | case TABLE_SNAP: return snapclient; | |
906 | default: ceph_abort(); | |
907 | } | |
908 | } | |
909 | ||
910 | MDSTableServer *MDSRank::get_table_server(int t) | |
911 | { | |
912 | switch (t) { | |
913 | case TABLE_ANCHOR: return NULL; | |
914 | case TABLE_SNAP: return snapserver; | |
915 | default: ceph_abort(); | |
916 | } | |
917 | } | |
918 | ||
919 | void MDSRank::suicide() | |
920 | { | |
921 | if (suicide_hook) { | |
922 | suicide_hook->complete(0); | |
923 | suicide_hook = NULL; | |
924 | } | |
925 | } | |
926 | ||
927 | void MDSRank::respawn() | |
928 | { | |
929 | if (respawn_hook) { | |
930 | respawn_hook->complete(0); | |
931 | respawn_hook = NULL; | |
932 | } | |
933 | } | |
934 | ||
aee94f69 TL |
935 | void MDSRank::abort(std::string_view msg) |
936 | { | |
937 | monc->flush_log(); | |
938 | ceph_abort(msg); | |
939 | } | |
940 | ||
7c673cae FG |
941 | void MDSRank::damaged() |
942 | { | |
11fdf7f2 | 943 | ceph_assert(whoami != MDS_RANK_NONE); |
9f95a23c | 944 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
7c673cae | 945 | |
11fdf7f2 | 946 | beacon.set_want_state(*mdsmap, MDSMap::STATE_DAMAGED); |
7c673cae FG |
947 | monc->flush_log(); // Flush any clog error from before we were called |
948 | beacon.notify_health(this); // Include latest status in our swan song | |
11fdf7f2 | 949 | beacon.send_and_wait(g_conf()->mds_mon_shutdown_timeout); |
7c673cae FG |
950 | |
951 | // It's okay if we timed out and the mon didn't get our beacon, because | |
952 | // another daemon (or ourselves after respawn) will eventually take the | |
953 | // rank and report DAMAGED again when it hits same problem we did. | |
954 | ||
955 | respawn(); // Respawn into standby in case mon has other work for us | |
956 | } | |
957 | ||
958 | void MDSRank::damaged_unlocked() | |
959 | { | |
11fdf7f2 | 960 | std::lock_guard l(mds_lock); |
7c673cae FG |
961 | damaged(); |
962 | } | |
963 | ||
964 | void MDSRank::handle_write_error(int err) | |
965 | { | |
f67539c2 TL |
966 | if (err == -CEPHFS_EBLOCKLISTED) { |
967 | derr << "we have been blocklisted (fenced), respawning..." << dendl; | |
7c673cae FG |
968 | respawn(); |
969 | return; | |
970 | } | |
971 | ||
11fdf7f2 | 972 | if (g_conf()->mds_action_on_write_error >= 2) { |
7c673cae FG |
973 | derr << "unhandled write error " << cpp_strerror(err) << ", suicide..." << dendl; |
974 | respawn(); | |
11fdf7f2 | 975 | } else if (g_conf()->mds_action_on_write_error == 1) { |
7c673cae FG |
976 | derr << "unhandled write error " << cpp_strerror(err) << ", force readonly..." << dendl; |
977 | mdcache->force_readonly(); | |
978 | } else { | |
979 | // ignore; | |
980 | derr << "unhandled write error " << cpp_strerror(err) << ", ignore..." << dendl; | |
981 | } | |
982 | } | |
983 | ||
f67539c2 TL |
984 | void MDSRank::handle_write_error_with_lock(int err) |
985 | { | |
986 | std::scoped_lock l(mds_lock); | |
987 | handle_write_error(err); | |
988 | } | |
989 | ||
7c673cae FG |
990 | void *MDSRank::ProgressThread::entry() |
991 | { | |
9f95a23c | 992 | std::unique_lock l(mds->mds_lock); |
7c673cae | 993 | while (true) { |
9f95a23c TL |
994 | cond.wait(l, [this] { |
995 | return (mds->stopping || | |
996 | !mds->finished_queue.empty() || | |
997 | (!mds->waiting_for_nolaggy.empty() && !mds->beacon.is_laggy())); | |
998 | }); | |
7c673cae FG |
999 | |
1000 | if (mds->stopping) { | |
1001 | break; | |
1002 | } | |
1003 | ||
1004 | mds->_advance_queues(); | |
1005 | } | |
1006 | ||
1007 | return NULL; | |
1008 | } | |
1009 | ||
1010 | ||
1011 | void MDSRank::ProgressThread::shutdown() | |
1012 | { | |
9f95a23c | 1013 | ceph_assert(ceph_mutex_is_locked_by_me(mds->mds_lock)); |
11fdf7f2 | 1014 | ceph_assert(mds->stopping); |
7c673cae FG |
1015 | |
1016 | if (am_self()) { | |
1017 | // Stopping is set, we will fall out of our main loop naturally | |
1018 | } else { | |
1019 | // Kick the thread to notice mds->stopping, and join it | |
9f95a23c TL |
1020 | cond.notify_all(); |
1021 | mds->mds_lock.unlock(); | |
7c673cae FG |
1022 | if (is_started()) |
1023 | join(); | |
9f95a23c | 1024 | mds->mds_lock.lock(); |
7c673cae FG |
1025 | } |
1026 | } | |
1027 | ||
9f95a23c | 1028 | bool MDSRankDispatcher::ms_dispatch(const cref_t<Message> &m) |
7c673cae | 1029 | { |
f67539c2 TL |
1030 | if (m->get_source().is_mds()) { |
1031 | const Message *msg = m.get(); | |
1032 | const MMDSOp *op = dynamic_cast<const MMDSOp*>(msg); | |
1033 | if (!op) | |
1034 | dout(0) << typeid(*msg).name() << " is not an MMDSOp type" << dendl; | |
1035 | ceph_assert(op); | |
1036 | } | |
1037 | else if (m->get_source().is_client()) { | |
11fdf7f2 | 1038 | Session *session = static_cast<Session*>(m->get_connection()->get_priv().get()); |
f64942e4 AA |
1039 | if (session) |
1040 | session->last_seen = Session::clock::now(); | |
1041 | } | |
1042 | ||
7c673cae | 1043 | inc_dispatch_depth(); |
f64942e4 | 1044 | bool ret = _dispatch(m, true); |
7c673cae FG |
1045 | dec_dispatch_depth(); |
1046 | return ret; | |
1047 | } | |
1048 | ||
9f95a23c | 1049 | bool MDSRank::_dispatch(const cref_t<Message> &m, bool new_msg) |
7c673cae FG |
1050 | { |
1051 | if (is_stale_message(m)) { | |
7c673cae FG |
1052 | return true; |
1053 | } | |
f6b5b4d7 TL |
1054 | // do not proceed if this message cannot be handled |
1055 | if (!is_valid_message(m)) { | |
1056 | return false; | |
1057 | } | |
7c673cae FG |
1058 | |
1059 | if (beacon.is_laggy()) { | |
91327a77 | 1060 | dout(5) << " laggy, deferring " << *m << dendl; |
7c673cae FG |
1061 | waiting_for_nolaggy.push_back(m); |
1062 | } else if (new_msg && !waiting_for_nolaggy.empty()) { | |
91327a77 | 1063 | dout(5) << " there are deferred messages, deferring " << *m << dendl; |
7c673cae FG |
1064 | waiting_for_nolaggy.push_back(m); |
1065 | } else { | |
f6b5b4d7 | 1066 | handle_message(m); |
7c673cae FG |
1067 | heartbeat_reset(); |
1068 | } | |
1069 | ||
1070 | if (dispatch_depth > 1) | |
1071 | return true; | |
1072 | ||
1073 | // finish any triggered contexts | |
1074 | _advance_queues(); | |
1075 | ||
1076 | if (beacon.is_laggy()) { | |
1077 | // We've gone laggy during dispatch, don't do any | |
1078 | // more housekeeping | |
1079 | return true; | |
1080 | } | |
1081 | ||
7c673cae FG |
1082 | // hack: thrash exports |
1083 | static utime_t start; | |
1084 | utime_t now = ceph_clock_now(); | |
1085 | if (start == utime_t()) | |
1086 | start = now; | |
1087 | /*double el = now - start; | |
1088 | if (el > 30.0 && | |
1089 | el < 60.0)*/ | |
11fdf7f2 | 1090 | for (int i=0; i<g_conf()->mds_thrash_exports; i++) { |
7c673cae FG |
1091 | set<mds_rank_t> s; |
1092 | if (!is_active()) break; | |
1093 | mdsmap->get_mds_set(s, MDSMap::STATE_ACTIVE); | |
1094 | if (s.size() < 2 || CInode::count() < 10) | |
1095 | break; // need peers for this to work. | |
11fdf7f2 TL |
1096 | if (mdcache->migrator->get_num_exporting() > g_conf()->mds_thrash_exports * 5 || |
1097 | mdcache->migrator->get_export_queue_size() > g_conf()->mds_thrash_exports * 10) | |
7c673cae FG |
1098 | break; |
1099 | ||
11fdf7f2 | 1100 | dout(7) << "mds thrashing exports pass " << (i+1) << "/" << g_conf()->mds_thrash_exports << dendl; |
7c673cae FG |
1101 | |
1102 | // pick a random dir inode | |
1103 | CInode *in = mdcache->hack_pick_random_inode(); | |
1104 | ||
9f95a23c | 1105 | auto&& ls = in->get_dirfrags(); |
7c673cae | 1106 | if (!ls.empty()) { // must be an open dir. |
9f95a23c | 1107 | const auto& dir = ls[rand() % ls.size()]; |
7c673cae FG |
1108 | if (!dir->get_parent_dir()) continue; // must be linked. |
1109 | if (!dir->is_auth()) continue; // must be auth. | |
1110 | ||
1111 | mds_rank_t dest; | |
1112 | do { | |
1113 | int k = rand() % s.size(); | |
1114 | set<mds_rank_t>::iterator p = s.begin(); | |
1115 | while (k--) ++p; | |
1116 | dest = *p; | |
1117 | } while (dest == whoami); | |
1118 | mdcache->migrator->export_dir_nicely(dir,dest); | |
1119 | } | |
1120 | } | |
1121 | // hack: thrash fragments | |
11fdf7f2 | 1122 | for (int i=0; i<g_conf()->mds_thrash_fragments; i++) { |
7c673cae | 1123 | if (!is_active()) break; |
11fdf7f2 TL |
1124 | if (mdcache->get_num_fragmenting_dirs() > 5 * g_conf()->mds_thrash_fragments) break; |
1125 | dout(7) << "mds thrashing fragments pass " << (i+1) << "/" << g_conf()->mds_thrash_fragments << dendl; | |
7c673cae FG |
1126 | |
1127 | // pick a random dir inode | |
1128 | CInode *in = mdcache->hack_pick_random_inode(); | |
1129 | ||
9f95a23c | 1130 | auto&& ls = in->get_dirfrags(); |
7c673cae FG |
1131 | if (ls.empty()) continue; // must be an open dir. |
1132 | CDir *dir = ls.front(); | |
1133 | if (!dir->get_parent_dir()) continue; // must be linked. | |
1134 | if (!dir->is_auth()) continue; // must be auth. | |
1135 | frag_t fg = dir->get_frag(); | |
11fdf7f2 TL |
1136 | if ((fg == frag_t() || (rand() % (1 << fg.bits()) == 0))) { |
1137 | mdcache->split_dir(dir, 1); | |
1138 | } else { | |
1139 | balancer->queue_merge(dir); | |
7c673cae FG |
1140 | } |
1141 | } | |
1142 | ||
1143 | // hack: force hash root? | |
1144 | /* | |
1145 | if (false && | |
1146 | mdcache->get_root() && | |
1147 | mdcache->get_root()->dir && | |
1148 | !(mdcache->get_root()->dir->is_hashed() || | |
1149 | mdcache->get_root()->dir->is_hashing())) { | |
1150 | dout(0) << "hashing root" << dendl; | |
1151 | mdcache->migrator->hash_dir(mdcache->get_root()->dir); | |
1152 | } | |
1153 | */ | |
1154 | ||
c07f9fc5 FG |
1155 | update_mlogger(); |
1156 | return true; | |
1157 | } | |
1158 | ||
1159 | void MDSRank::update_mlogger() | |
1160 | { | |
7c673cae FG |
1161 | if (mlogger) { |
1162 | mlogger->set(l_mdm_ino, CInode::count()); | |
1163 | mlogger->set(l_mdm_dir, CDir::count()); | |
1164 | mlogger->set(l_mdm_dn, CDentry::count()); | |
1165 | mlogger->set(l_mdm_cap, Capability::count()); | |
7c673cae FG |
1166 | mlogger->set(l_mdm_inoa, CInode::increments()); |
1167 | mlogger->set(l_mdm_inos, CInode::decrements()); | |
1168 | mlogger->set(l_mdm_dira, CDir::increments()); | |
1169 | mlogger->set(l_mdm_dirs, CDir::decrements()); | |
1170 | mlogger->set(l_mdm_dna, CDentry::increments()); | |
1171 | mlogger->set(l_mdm_dns, CDentry::decrements()); | |
1172 | mlogger->set(l_mdm_capa, Capability::increments()); | |
1173 | mlogger->set(l_mdm_caps, Capability::decrements()); | |
7c673cae | 1174 | } |
7c673cae FG |
1175 | } |
1176 | ||
f6b5b4d7 TL |
1177 | // message types that the mds can handle |
1178 | bool MDSRank::is_valid_message(const cref_t<Message> &m) { | |
1179 | int port = m->get_type() & 0xff00; | |
1180 | int type = m->get_type(); | |
1181 | ||
1182 | if (port == MDS_PORT_CACHE || | |
1183 | port == MDS_PORT_MIGRATOR || | |
1184 | type == CEPH_MSG_CLIENT_SESSION || | |
1185 | type == CEPH_MSG_CLIENT_RECONNECT || | |
1186 | type == CEPH_MSG_CLIENT_RECLAIM || | |
1187 | type == CEPH_MSG_CLIENT_REQUEST || | |
f67539c2 | 1188 | type == MSG_MDS_PEER_REQUEST || |
f6b5b4d7 TL |
1189 | type == MSG_MDS_HEARTBEAT || |
1190 | type == MSG_MDS_TABLE_REQUEST || | |
1191 | type == MSG_MDS_LOCK || | |
1192 | type == MSG_MDS_INODEFILECAPS || | |
f67539c2 TL |
1193 | type == MSG_MDS_SCRUB || |
1194 | type == MSG_MDS_SCRUB_STATS || | |
f6b5b4d7 TL |
1195 | type == CEPH_MSG_CLIENT_CAPS || |
1196 | type == CEPH_MSG_CLIENT_CAPRELEASE || | |
1197 | type == CEPH_MSG_CLIENT_LEASE) { | |
1198 | return true; | |
1199 | } | |
1200 | ||
1201 | return false; | |
1202 | } | |
1203 | ||
7c673cae FG |
1204 | /* |
1205 | * lower priority messages we defer if we seem laggy | |
1206 | */ | |
f6b5b4d7 TL |
1207 | |
1208 | #define ALLOW_MESSAGES_FROM(peers) \ | |
1209 | do { \ | |
1210 | if (m->get_connection() && (m->get_connection()->get_peer_type() & (peers)) == 0) { \ | |
1211 | dout(0) << __FILE__ << "." << __LINE__ << ": filtered out request, peer=" << m->get_connection()->get_peer_type() \ | |
1212 | << " allowing=" << #peers << " message=" << *m << dendl; \ | |
1213 | return; \ | |
1214 | } \ | |
1215 | } while (0) | |
1216 | ||
1217 | void MDSRank::handle_message(const cref_t<Message> &m) | |
7c673cae FG |
1218 | { |
1219 | int port = m->get_type() & 0xff00; | |
1220 | ||
1221 | switch (port) { | |
1222 | case MDS_PORT_CACHE: | |
1223 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1224 | mdcache->dispatch(m); | |
1225 | break; | |
1226 | ||
1227 | case MDS_PORT_MIGRATOR: | |
1228 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1229 | mdcache->migrator->dispatch(m); | |
1230 | break; | |
1231 | ||
1232 | default: | |
1233 | switch (m->get_type()) { | |
1234 | // SERVER | |
1235 | case CEPH_MSG_CLIENT_SESSION: | |
1236 | case CEPH_MSG_CLIENT_RECONNECT: | |
11fdf7f2 | 1237 | case CEPH_MSG_CLIENT_RECLAIM: |
7c673cae FG |
1238 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_CLIENT); |
1239 | // fall-thru | |
1240 | case CEPH_MSG_CLIENT_REQUEST: | |
1241 | server->dispatch(m); | |
1242 | break; | |
f67539c2 | 1243 | case MSG_MDS_PEER_REQUEST: |
7c673cae FG |
1244 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); |
1245 | server->dispatch(m); | |
1246 | break; | |
1247 | ||
1248 | case MSG_MDS_HEARTBEAT: | |
1249 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1250 | balancer->proc_message(m); | |
1251 | break; | |
1252 | ||
1253 | case MSG_MDS_TABLE_REQUEST: | |
1254 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1255 | { | |
9f95a23c | 1256 | const cref_t<MMDSTableRequest> &req = ref_cast<MMDSTableRequest>(m); |
11fdf7f2 TL |
1257 | if (req->op < 0) { |
1258 | MDSTableClient *client = get_table_client(req->table); | |
1259 | client->handle_request(req); | |
1260 | } else { | |
1261 | MDSTableServer *server = get_table_server(req->table); | |
1262 | server->handle_request(req); | |
1263 | } | |
7c673cae FG |
1264 | } |
1265 | break; | |
1266 | ||
1267 | case MSG_MDS_LOCK: | |
1268 | case MSG_MDS_INODEFILECAPS: | |
1269 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1270 | locker->dispatch(m); | |
1271 | break; | |
1272 | ||
1273 | case CEPH_MSG_CLIENT_CAPS: | |
1274 | case CEPH_MSG_CLIENT_CAPRELEASE: | |
1275 | case CEPH_MSG_CLIENT_LEASE: | |
1276 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_CLIENT); | |
1277 | locker->dispatch(m); | |
1278 | break; | |
1279 | ||
f67539c2 TL |
1280 | case MSG_MDS_SCRUB: |
1281 | case MSG_MDS_SCRUB_STATS: | |
1282 | ALLOW_MESSAGES_FROM(CEPH_ENTITY_TYPE_MDS); | |
1283 | scrubstack->dispatch(m); | |
1284 | break; | |
1285 | ||
7c673cae | 1286 | default: |
f6b5b4d7 | 1287 | derr << "unrecognized message " << *m << dendl; |
7c673cae FG |
1288 | } |
1289 | } | |
7c673cae FG |
1290 | } |
1291 | ||
1292 | /** | |
1293 | * Advance finished_queue and waiting_for_nolaggy. | |
1294 | * | |
1295 | * Usually drain both queues, but may not drain waiting_for_nolaggy | |
1296 | * if beacon is currently laggy. | |
1297 | */ | |
1298 | void MDSRank::_advance_queues() | |
1299 | { | |
9f95a23c | 1300 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
7c673cae | 1301 | |
11fdf7f2 | 1302 | if (!finished_queue.empty()) { |
7c673cae | 1303 | dout(7) << "mds has " << finished_queue.size() << " queued contexts" << dendl; |
11fdf7f2 TL |
1304 | while (!finished_queue.empty()) { |
1305 | auto fin = finished_queue.front(); | |
1306 | finished_queue.pop_front(); | |
1307 | ||
1308 | dout(10) << " finish " << fin << dendl; | |
1309 | fin->complete(0); | |
7c673cae FG |
1310 | |
1311 | heartbeat_reset(); | |
1312 | } | |
1313 | } | |
1314 | ||
1315 | while (!waiting_for_nolaggy.empty()) { | |
1316 | // stop if we're laggy now! | |
1317 | if (beacon.is_laggy()) | |
1318 | break; | |
1319 | ||
9f95a23c | 1320 | cref_t<Message> old = waiting_for_nolaggy.front(); |
7c673cae FG |
1321 | waiting_for_nolaggy.pop_front(); |
1322 | ||
11fdf7f2 | 1323 | if (!is_stale_message(old)) { |
7c673cae | 1324 | dout(7) << " processing laggy deferred " << *old << dendl; |
f6b5b4d7 TL |
1325 | ceph_assert(is_valid_message(old)); |
1326 | handle_message(old); | |
7c673cae FG |
1327 | } |
1328 | ||
1329 | heartbeat_reset(); | |
1330 | } | |
1331 | } | |
1332 | ||
1333 | /** | |
1334 | * Call this when you take mds_lock, or periodically if you're going to | |
1335 | * hold the lock for a long time (e.g. iterating over clients/inodes) | |
1336 | */ | |
1337 | void MDSRank::heartbeat_reset() | |
1338 | { | |
1339 | // Any thread might jump into mds_lock and call us immediately | |
1340 | // after a call to suicide() completes, in which case MDSRank::hb | |
1341 | // has been freed and we are a no-op. | |
1342 | if (!hb) { | |
11fdf7f2 | 1343 | ceph_assert(stopping); |
7c673cae FG |
1344 | return; |
1345 | } | |
1346 | ||
1347 | // NB not enabling suicide grace, because the mon takes care of killing us | |
f67539c2 | 1348 | // (by blocklisting us) when we fail to send beacons, and it's simpler to |
7c673cae | 1349 | // only have one way of dying. |
f67539c2 TL |
1350 | g_ceph_context->get_heartbeat_map()->reset_timeout(hb, |
1351 | ceph::make_timespan(heartbeat_grace), | |
1352 | ceph::timespan::zero()); | |
7c673cae FG |
1353 | } |
1354 | ||
9f95a23c | 1355 | bool MDSRank::is_stale_message(const cref_t<Message> &m) const |
7c673cae FG |
1356 | { |
1357 | // from bad mds? | |
1358 | if (m->get_source().is_mds()) { | |
1359 | mds_rank_t from = mds_rank_t(m->get_source().num()); | |
11fdf7f2 TL |
1360 | bool bad = false; |
1361 | if (mdsmap->is_down(from)) { | |
1362 | bad = true; | |
1363 | } else { | |
1364 | // FIXME: this is a convoluted check. we should be maintaining a nice | |
1365 | // clean map of current ConnectionRefs for current mdses!!! | |
1366 | auto c = messenger->connect_to(CEPH_ENTITY_TYPE_MDS, | |
1367 | mdsmap->get_addrs(from)); | |
1368 | if (c != m->get_connection()) { | |
1369 | bad = true; | |
1370 | dout(5) << " mds." << from << " should be " << c << " " | |
1371 | << c->get_peer_addrs() << " but this message is " | |
1372 | << m->get_connection() << " " << m->get_source_addrs() | |
1373 | << dendl; | |
1374 | } | |
1375 | } | |
1376 | if (bad) { | |
7c673cae FG |
1377 | // bogus mds? |
1378 | if (m->get_type() == CEPH_MSG_MDS_MAP) { | |
1379 | dout(5) << "got " << *m << " from old/bad/imposter mds " << m->get_source() | |
1380 | << ", but it's an mdsmap, looking at it" << dendl; | |
1381 | } else if (m->get_type() == MSG_MDS_CACHEEXPIRE && | |
11fdf7f2 | 1382 | mdsmap->get_addrs(from) == m->get_source_addrs()) { |
7c673cae FG |
1383 | dout(5) << "got " << *m << " from down mds " << m->get_source() |
1384 | << ", but it's a cache_expire, looking at it" << dendl; | |
1385 | } else { | |
1386 | dout(5) << "got " << *m << " from down/old/bad/imposter mds " << m->get_source() | |
1387 | << ", dropping" << dendl; | |
1388 | return true; | |
1389 | } | |
1390 | } | |
1391 | } | |
1392 | return false; | |
1393 | } | |
1394 | ||
9f95a23c | 1395 | Session *MDSRank::get_session(const cref_t<Message> &m) |
94b18763 | 1396 | { |
11fdf7f2 TL |
1397 | // do not carry ref |
1398 | auto session = static_cast<Session *>(m->get_connection()->get_priv().get()); | |
94b18763 FG |
1399 | if (session) { |
1400 | dout(20) << "get_session have " << session << " " << session->info.inst | |
1401 | << " state " << session->get_state_name() << dendl; | |
28e407b8 | 1402 | // Check if we've imported an open session since (new sessions start closed) |
1e59de90 | 1403 | if (session->is_closed() && m->get_type() == CEPH_MSG_CLIENT_SESSION) { |
28e407b8 AA |
1404 | Session *imported_session = sessionmap.get_session(session->info.inst.name); |
1405 | if (imported_session && imported_session != session) { | |
11fdf7f2 TL |
1406 | dout(10) << __func__ << " replacing connection bootstrap session " |
1407 | << session << " with imported session " << imported_session | |
1408 | << dendl; | |
28e407b8 AA |
1409 | imported_session->info.auth_name = session->info.auth_name; |
1410 | //assert(session->info.auth_name == imported_session->info.auth_name); | |
11fdf7f2 TL |
1411 | ceph_assert(session->info.inst == imported_session->info.inst); |
1412 | imported_session->set_connection(session->get_connection().get()); | |
28e407b8 AA |
1413 | // send out any queued messages |
1414 | while (!session->preopen_out_queue.empty()) { | |
11fdf7f2 | 1415 | imported_session->get_connection()->send_message2(std::move(session->preopen_out_queue.front())); |
28e407b8 AA |
1416 | session->preopen_out_queue.pop_front(); |
1417 | } | |
1418 | imported_session->auth_caps = session->auth_caps; | |
f64942e4 | 1419 | imported_session->last_seen = session->last_seen; |
11fdf7f2 TL |
1420 | ceph_assert(session->get_nref() == 1); |
1421 | imported_session->get_connection()->set_priv(imported_session->get()); | |
28e407b8 AA |
1422 | session = imported_session; |
1423 | } | |
1424 | } | |
94b18763 FG |
1425 | } else { |
1426 | dout(20) << "get_session dne for " << m->get_source_inst() << dendl; | |
1427 | } | |
1428 | return session; | |
1429 | } | |
7c673cae | 1430 | |
9f95a23c | 1431 | void MDSRank::send_message(const ref_t<Message>& m, const ConnectionRef& c) |
7c673cae | 1432 | { |
11fdf7f2 TL |
1433 | ceph_assert(c); |
1434 | c->send_message2(m); | |
7c673cae FG |
1435 | } |
1436 | ||
20effc67 TL |
1437 | class C_MDS_RetrySendMessageMDS : public MDSInternalContext { |
1438 | public: | |
1439 | C_MDS_RetrySendMessageMDS(MDSRank* mds, mds_rank_t who, ref_t<Message> m) | |
1440 | : MDSInternalContext(mds), who(who), m(std::move(m)) {} | |
1441 | void finish(int r) override { | |
1442 | mds->send_message_mds(m, who); | |
1443 | } | |
1444 | private: | |
1445 | mds_rank_t who; | |
1446 | ref_t<Message> m; | |
1447 | }; | |
1448 | ||
7c673cae | 1449 | |
9f95a23c | 1450 | void MDSRank::send_message_mds(const ref_t<Message>& m, mds_rank_t mds) |
7c673cae FG |
1451 | { |
1452 | if (!mdsmap->is_up(mds)) { | |
1453 | dout(10) << "send_message_mds mds." << mds << " not up, dropping " << *m << dendl; | |
7c673cae | 1454 | return; |
20effc67 TL |
1455 | } else if (mdsmap->is_bootstrapping(mds)) { |
1456 | dout(5) << __func__ << "mds." << mds << " is bootstrapping, deferring " << *m << dendl; | |
1457 | wait_for_bootstrapped_peer(mds, new C_MDS_RetrySendMessageMDS(this, mds, m)); | |
1458 | return; | |
7c673cae FG |
1459 | } |
1460 | ||
1461 | // send mdsmap first? | |
f67539c2 | 1462 | auto addrs = mdsmap->get_addrs(mds); |
7c673cae | 1463 | if (mds != whoami && peer_mdsmap_epoch[mds] < mdsmap->get_epoch()) { |
20effc67 | 1464 | auto _m = make_message<MMDSMap>(monc->get_fsid(), *mdsmap); |
f67539c2 | 1465 | send_message_mds(_m, addrs); |
7c673cae FG |
1466 | peer_mdsmap_epoch[mds] = mdsmap->get_epoch(); |
1467 | } | |
1468 | ||
1469 | // send message | |
f67539c2 TL |
1470 | send_message_mds(m, addrs); |
1471 | } | |
1472 | ||
1473 | void MDSRank::send_message_mds(const ref_t<Message>& m, const entity_addrvec_t &addr) | |
1474 | { | |
1475 | messenger->send_to_mds(ref_t<Message>(m).detach(), addr); | |
7c673cae FG |
1476 | } |
1477 | ||
aee94f69 | 1478 | void MDSRank::forward_message_mds(MDRequestRef& mdr, mds_rank_t mds) |
7c673cae | 1479 | { |
11fdf7f2 | 1480 | ceph_assert(mds != whoami); |
7c673cae | 1481 | |
aee94f69 TL |
1482 | auto m = mdr->release_client_request(); |
1483 | ||
11fdf7f2 TL |
1484 | /* |
1485 | * don't actually forward if non-idempotent! | |
1486 | * client has to do it. although the MDS will ignore duplicate requests, | |
1487 | * the affected metadata may migrate, in which case the new authority | |
1488 | * won't have the metareq_id in the completed request map. | |
1489 | */ | |
1490 | // NEW: always make the client resend! | |
1491 | bool client_must_resend = true; //!creq->can_forward(); | |
7c673cae | 1492 | |
11fdf7f2 TL |
1493 | // tell the client where it should go |
1494 | auto session = get_session(m); | |
aee94f69 TL |
1495 | if (!session) { |
1496 | dout(1) << "no session found, failed to forward client request " << mdr << dendl; | |
1497 | return; | |
1498 | } | |
9f95a23c | 1499 | auto f = make_message<MClientRequestForward>(m->get_tid(), mds, m->get_num_fwd()+1, client_must_resend); |
11fdf7f2 | 1500 | send_message_client(f, session); |
7c673cae FG |
1501 | } |
1502 | ||
9f95a23c | 1503 | void MDSRank::send_message_client_counted(const ref_t<Message>& m, client_t client) |
7c673cae | 1504 | { |
11fdf7f2 | 1505 | Session *session = sessionmap.get_session(entity_name_t::CLIENT(client.v)); |
7c673cae FG |
1506 | if (session) { |
1507 | send_message_client_counted(m, session); | |
1508 | } else { | |
1509 | dout(10) << "send_message_client_counted no session for client." << client << " " << *m << dendl; | |
1510 | } | |
1511 | } | |
1512 | ||
9f95a23c | 1513 | void MDSRank::send_message_client_counted(const ref_t<Message>& m, const ConnectionRef& connection) |
7c673cae | 1514 | { |
11fdf7f2 TL |
1515 | // do not carry ref |
1516 | auto session = static_cast<Session *>(connection->get_priv().get()); | |
7c673cae | 1517 | if (session) { |
7c673cae FG |
1518 | send_message_client_counted(m, session); |
1519 | } else { | |
1520 | dout(10) << "send_message_client_counted has no session for " << m->get_source_inst() << dendl; | |
1521 | // another Connection took over the Session | |
1522 | } | |
1523 | } | |
1524 | ||
9f95a23c | 1525 | void MDSRank::send_message_client_counted(const ref_t<Message>& m, Session* session) |
7c673cae FG |
1526 | { |
1527 | version_t seq = session->inc_push_seq(); | |
1528 | dout(10) << "send_message_client_counted " << session->info.inst.name << " seq " | |
1529 | << seq << " " << *m << dendl; | |
11fdf7f2 TL |
1530 | if (session->get_connection()) { |
1531 | session->get_connection()->send_message2(m); | |
7c673cae FG |
1532 | } else { |
1533 | session->preopen_out_queue.push_back(m); | |
1534 | } | |
1535 | } | |
1536 | ||
9f95a23c | 1537 | void MDSRank::send_message_client(const ref_t<Message>& m, Session* session) |
7c673cae FG |
1538 | { |
1539 | dout(10) << "send_message_client " << session->info.inst << " " << *m << dendl; | |
11fdf7f2 TL |
1540 | if (session->get_connection()) { |
1541 | session->get_connection()->send_message2(m); | |
7c673cae FG |
1542 | } else { |
1543 | session->preopen_out_queue.push_back(m); | |
1544 | } | |
1545 | } | |
1546 | ||
1547 | /** | |
1548 | * This is used whenever a RADOS operation has been cancelled | |
f67539c2 | 1549 | * or a RADOS client has been blocklisted, to cause the MDS and |
7c673cae FG |
1550 | * any clients to wait for this OSD epoch before using any new caps. |
1551 | * | |
1552 | * See doc/cephfs/eviction | |
1553 | */ | |
1554 | void MDSRank::set_osd_epoch_barrier(epoch_t e) | |
1555 | { | |
1556 | dout(4) << __func__ << ": epoch=" << e << dendl; | |
1557 | osd_epoch_barrier = e; | |
1558 | } | |
1559 | ||
9f95a23c | 1560 | void MDSRank::retry_dispatch(const cref_t<Message> &m) |
7c673cae FG |
1561 | { |
1562 | inc_dispatch_depth(); | |
1563 | _dispatch(m, false); | |
1564 | dec_dispatch_depth(); | |
1565 | } | |
1566 | ||
91327a77 | 1567 | double MDSRank::get_dispatch_queue_max_age(utime_t now) const |
7c673cae | 1568 | { |
91327a77 | 1569 | return messenger->get_dispatch_queue_max_age(now); |
7c673cae FG |
1570 | } |
1571 | ||
1572 | bool MDSRank::is_daemon_stopping() const | |
1573 | { | |
1574 | return stopping; | |
1575 | } | |
1576 | ||
1577 | void MDSRank::request_state(MDSMap::DaemonState s) | |
1578 | { | |
1579 | dout(3) << "request_state " << ceph_mds_state_name(s) << dendl; | |
11fdf7f2 | 1580 | beacon.set_want_state(*mdsmap, s); |
7c673cae FG |
1581 | beacon.send(); |
1582 | } | |
1583 | ||
1584 | ||
1585 | class C_MDS_BootStart : public MDSInternalContext { | |
1586 | MDSRank::BootStep nextstep; | |
1587 | public: | |
1588 | C_MDS_BootStart(MDSRank *m, MDSRank::BootStep n) | |
1589 | : MDSInternalContext(m), nextstep(n) {} | |
1590 | void finish(int r) override { | |
1591 | mds->boot_start(nextstep, r); | |
1592 | } | |
1593 | }; | |
1594 | ||
1595 | ||
1596 | void MDSRank::boot_start(BootStep step, int r) | |
1597 | { | |
1598 | // Handle errors from previous step | |
1599 | if (r < 0) { | |
f67539c2 TL |
1600 | if (is_standby_replay() && (r == -CEPHFS_EAGAIN)) { |
1601 | dout(0) << "boot_start encountered an error CEPHFS_EAGAIN" | |
7c673cae FG |
1602 | << ", respawning since we fell behind journal" << dendl; |
1603 | respawn(); | |
f67539c2 | 1604 | } else if (r == -CEPHFS_EINVAL || r == -CEPHFS_ENOENT) { |
7c673cae FG |
1605 | // Invalid or absent data, indicates damaged on-disk structures |
1606 | clog->error() << "Error loading MDS rank " << whoami << ": " | |
1607 | << cpp_strerror(r); | |
1608 | damaged(); | |
11fdf7f2 | 1609 | ceph_assert(r == 0); // Unreachable, damaged() calls respawn() |
f67539c2 | 1610 | } else if (r == -CEPHFS_EROFS) { |
f64942e4 | 1611 | dout(0) << "boot error forcing transition to read-only; MDS will try to continue" << dendl; |
7c673cae FG |
1612 | } else { |
1613 | // Completely unexpected error, give up and die | |
1614 | dout(0) << "boot_start encountered an error, failing" << dendl; | |
1615 | suicide(); | |
1616 | return; | |
1617 | } | |
1618 | } | |
1619 | ||
11fdf7f2 | 1620 | ceph_assert(is_starting() || is_any_replay()); |
7c673cae FG |
1621 | |
1622 | switch(step) { | |
1623 | case MDS_BOOT_INITIAL: | |
1624 | { | |
1625 | mdcache->init_layouts(); | |
1626 | ||
1627 | MDSGatherBuilder gather(g_ceph_context, | |
1628 | new C_MDS_BootStart(this, MDS_BOOT_OPEN_ROOT)); | |
a8e16298 | 1629 | dout(2) << "Booting: " << step << ": opening inotable" << dendl; |
7c673cae FG |
1630 | inotable->set_rank(whoami); |
1631 | inotable->load(gather.new_sub()); | |
1632 | ||
a8e16298 | 1633 | dout(2) << "Booting: " << step << ": opening sessionmap" << dendl; |
7c673cae FG |
1634 | sessionmap.set_rank(whoami); |
1635 | sessionmap.load(gather.new_sub()); | |
1636 | ||
a8e16298 | 1637 | dout(2) << "Booting: " << step << ": opening mds log" << dendl; |
7c673cae FG |
1638 | mdlog->open(gather.new_sub()); |
1639 | ||
3efd9988 | 1640 | if (is_starting()) { |
a8e16298 | 1641 | dout(2) << "Booting: " << step << ": opening purge queue" << dendl; |
3efd9988 FG |
1642 | purge_queue.open(new C_IO_Wrapper(this, gather.new_sub())); |
1643 | } else if (!standby_replaying) { | |
a8e16298 | 1644 | dout(2) << "Booting: " << step << ": opening purge queue (async)" << dendl; |
3efd9988 | 1645 | purge_queue.open(NULL); |
11fdf7f2 TL |
1646 | dout(2) << "Booting: " << step << ": loading open file table (async)" << dendl; |
1647 | mdcache->open_file_table.load(nullptr); | |
3efd9988 FG |
1648 | } |
1649 | ||
7c673cae | 1650 | if (mdsmap->get_tableserver() == whoami) { |
a8e16298 | 1651 | dout(2) << "Booting: " << step << ": opening snap table" << dendl; |
7c673cae FG |
1652 | snapserver->set_rank(whoami); |
1653 | snapserver->load(gather.new_sub()); | |
1654 | } | |
1655 | ||
1656 | gather.activate(); | |
1657 | } | |
1658 | break; | |
1659 | case MDS_BOOT_OPEN_ROOT: | |
1660 | { | |
a8e16298 | 1661 | dout(2) << "Booting: " << step << ": loading/discovering base inodes" << dendl; |
7c673cae FG |
1662 | |
1663 | MDSGatherBuilder gather(g_ceph_context, | |
1664 | new C_MDS_BootStart(this, MDS_BOOT_PREPARE_LOG)); | |
1665 | ||
28e407b8 AA |
1666 | if (is_starting()) { |
1667 | // load mydir frag for the first log segment (creating subtree map) | |
1668 | mdcache->open_mydir_frag(gather.new_sub()); | |
1669 | } else { | |
1670 | mdcache->open_mydir_inode(gather.new_sub()); | |
1671 | } | |
7c673cae | 1672 | |
11fdf7f2 TL |
1673 | mdcache->create_global_snaprealm(); |
1674 | ||
28e407b8 AA |
1675 | if (whoami == mdsmap->get_root()) { // load root inode off disk if we are auth |
1676 | mdcache->open_root_inode(gather.new_sub()); | |
1677 | } else if (is_any_replay()) { | |
1678 | // replay. make up fake root inode to start with | |
1679 | mdcache->create_root_inode(); | |
1680 | } | |
7c673cae FG |
1681 | gather.activate(); |
1682 | } | |
1683 | break; | |
1684 | case MDS_BOOT_PREPARE_LOG: | |
1685 | if (is_any_replay()) { | |
a8e16298 | 1686 | dout(2) << "Booting: " << step << ": replaying mds log" << dendl; |
3efd9988 FG |
1687 | MDSGatherBuilder gather(g_ceph_context, |
1688 | new C_MDS_BootStart(this, MDS_BOOT_REPLAY_DONE)); | |
1689 | ||
1690 | if (!standby_replaying) { | |
a8e16298 | 1691 | dout(2) << "Booting: " << step << ": waiting for purge queue recovered" << dendl; |
3efd9988 FG |
1692 | purge_queue.wait_for_recovery(new C_IO_Wrapper(this, gather.new_sub())); |
1693 | } | |
1694 | ||
1695 | mdlog->replay(gather.new_sub()); | |
1696 | gather.activate(); | |
7c673cae | 1697 | } else { |
a8e16298 | 1698 | dout(2) << "Booting: " << step << ": positioning at end of old mds log" << dendl; |
7c673cae FG |
1699 | mdlog->append(); |
1700 | starting_done(); | |
1701 | } | |
1702 | break; | |
1703 | case MDS_BOOT_REPLAY_DONE: | |
11fdf7f2 | 1704 | ceph_assert(is_any_replay()); |
7c673cae FG |
1705 | |
1706 | // Sessiontable and inotable should be in sync after replay, validate | |
1707 | // that they are consistent. | |
1708 | validate_sessions(); | |
1709 | ||
1710 | replay_done(); | |
1711 | break; | |
1712 | } | |
1713 | } | |
1714 | ||
1715 | void MDSRank::validate_sessions() | |
1716 | { | |
9f95a23c | 1717 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
28e407b8 | 1718 | bool valid = true; |
7c673cae FG |
1719 | |
1720 | // Identify any sessions which have state inconsistent with other, | |
1721 | // after they have been loaded from rados during startup. | |
1722 | // Mitigate bugs like: http://tracker.ceph.com/issues/16842 | |
11fdf7f2 | 1723 | for (const auto &i : sessionmap.get_sessions()) { |
7c673cae | 1724 | Session *session = i.second; |
f67539c2 TL |
1725 | ceph_assert(session->info.prealloc_inos == session->free_prealloc_inos); |
1726 | ||
7c673cae FG |
1727 | interval_set<inodeno_t> badones; |
1728 | if (inotable->intersects_free(session->info.prealloc_inos, &badones)) { | |
28e407b8 AA |
1729 | clog->error() << "client " << *session |
1730 | << "loaded with preallocated inodes that are inconsistent with inotable"; | |
1731 | valid = false; | |
7c673cae FG |
1732 | } |
1733 | } | |
1734 | ||
28e407b8 AA |
1735 | if (!valid) { |
1736 | damaged(); | |
11fdf7f2 | 1737 | ceph_assert(valid); |
7c673cae FG |
1738 | } |
1739 | } | |
1740 | ||
1741 | void MDSRank::starting_done() | |
1742 | { | |
1743 | dout(3) << "starting_done" << dendl; | |
11fdf7f2 | 1744 | ceph_assert(is_starting()); |
7c673cae FG |
1745 | request_state(MDSMap::STATE_ACTIVE); |
1746 | ||
28e407b8 | 1747 | mdlog->start_new_segment(); |
11fdf7f2 TL |
1748 | |
1749 | // sync snaptable cache | |
1750 | snapclient->sync(new C_MDSInternalNoop); | |
7c673cae FG |
1751 | } |
1752 | ||
1753 | ||
1754 | void MDSRank::calc_recovery_set() | |
1755 | { | |
1756 | // initialize gather sets | |
1757 | set<mds_rank_t> rs; | |
1758 | mdsmap->get_recovery_mds_set(rs); | |
1759 | rs.erase(whoami); | |
1760 | mdcache->set_recovery_set(rs); | |
1761 | ||
1762 | dout(1) << " recovery set is " << rs << dendl; | |
1763 | } | |
1764 | ||
7c673cae FG |
1765 | void MDSRank::replay_start() |
1766 | { | |
1767 | dout(1) << "replay_start" << dendl; | |
1768 | ||
a4b75251 | 1769 | if (is_standby_replay()) { |
7c673cae | 1770 | standby_replaying = true; |
a4b75251 TL |
1771 | if (unlikely(g_conf().get_val<bool>("mds_standby_replay_damaged"))) { |
1772 | damaged(); | |
1773 | } | |
1774 | } | |
7c673cae | 1775 | |
7c673cae | 1776 | // Check if we need to wait for a newer OSD map before starting |
f67539c2 TL |
1777 | bool const ready = objecter->with_osdmap( |
1778 | [this](const OSDMap& o) { | |
1779 | return o.get_epoch() >= mdsmap->get_last_failure_osd_epoch(); | |
1780 | }); | |
7c673cae FG |
1781 | |
1782 | if (ready) { | |
7c673cae FG |
1783 | boot_start(); |
1784 | } else { | |
1785 | dout(1) << " waiting for osdmap " << mdsmap->get_last_failure_osd_epoch() | |
f67539c2 TL |
1786 | << " (which blocklists prior instance)" << dendl; |
1787 | Context *fin = new C_IO_Wrapper(this, new C_MDS_BootStart(this, MDS_BOOT_INITIAL)); | |
1788 | objecter->wait_for_map( | |
1789 | mdsmap->get_last_failure_osd_epoch(), | |
1790 | lambdafy(fin)); | |
7c673cae FG |
1791 | } |
1792 | } | |
1793 | ||
1794 | ||
1795 | class MDSRank::C_MDS_StandbyReplayRestartFinish : public MDSIOContext { | |
1796 | uint64_t old_read_pos; | |
1797 | public: | |
1798 | C_MDS_StandbyReplayRestartFinish(MDSRank *mds_, uint64_t old_read_pos_) : | |
1799 | MDSIOContext(mds_), old_read_pos(old_read_pos_) {} | |
1800 | void finish(int r) override { | |
1801 | mds->_standby_replay_restart_finish(r, old_read_pos); | |
1802 | } | |
91327a77 AA |
1803 | void print(ostream& out) const override { |
1804 | out << "standby_replay_restart"; | |
1805 | } | |
7c673cae FG |
1806 | }; |
1807 | ||
1808 | void MDSRank::_standby_replay_restart_finish(int r, uint64_t old_read_pos) | |
1809 | { | |
1810 | if (old_read_pos < mdlog->get_journaler()->get_trimmed_pos()) { | |
1811 | dout(0) << "standby MDS fell behind active MDS journal's expire_pos, restarting" << dendl; | |
1812 | respawn(); /* we're too far back, and this is easier than | |
1813 | trying to reset everything in the cache, etc */ | |
1814 | } else { | |
1815 | mdlog->standby_trim_segments(); | |
1816 | boot_start(MDS_BOOT_PREPARE_LOG, r); | |
1817 | } | |
1818 | } | |
1819 | ||
3efd9988 FG |
1820 | class MDSRank::C_MDS_StandbyReplayRestart : public MDSInternalContext { |
1821 | public: | |
1822 | explicit C_MDS_StandbyReplayRestart(MDSRank *m) : MDSInternalContext(m) {} | |
1823 | void finish(int r) override { | |
11fdf7f2 | 1824 | ceph_assert(!r); |
3efd9988 FG |
1825 | mds->standby_replay_restart(); |
1826 | } | |
1827 | }; | |
1828 | ||
1829 | void MDSRank::standby_replay_restart() | |
7c673cae FG |
1830 | { |
1831 | if (standby_replaying) { | |
1832 | /* Go around for another pass of replaying in standby */ | |
f64942e4 | 1833 | dout(5) << "Restarting replay as standby-replay" << dendl; |
7c673cae FG |
1834 | mdlog->get_journaler()->reread_head_and_probe( |
1835 | new C_MDS_StandbyReplayRestartFinish( | |
1836 | this, | |
1837 | mdlog->get_journaler()->get_read_pos())); | |
1838 | } else { | |
1839 | /* We are transitioning out of standby: wait for OSD map update | |
1840 | before making final pass */ | |
1841 | dout(1) << "standby_replay_restart (final takeover pass)" << dendl; | |
f67539c2 TL |
1842 | bool ready = objecter->with_osdmap( |
1843 | [this](const OSDMap& o) { | |
1844 | return o.get_epoch() >= mdsmap->get_last_failure_osd_epoch(); | |
1845 | }); | |
7c673cae | 1846 | if (ready) { |
7c673cae FG |
1847 | mdlog->get_journaler()->reread_head_and_probe( |
1848 | new C_MDS_StandbyReplayRestartFinish( | |
1849 | this, | |
1850 | mdlog->get_journaler()->get_read_pos())); | |
3efd9988 | 1851 | |
11fdf7f2 | 1852 | dout(1) << " opening purge_queue (async)" << dendl; |
3efd9988 | 1853 | purge_queue.open(NULL); |
11fdf7f2 TL |
1854 | dout(1) << " opening open_file_table (async)" << dendl; |
1855 | mdcache->open_file_table.load(nullptr); | |
7c673cae | 1856 | } else { |
f67539c2 | 1857 | auto fin = new C_IO_Wrapper(this, new C_MDS_StandbyReplayRestart(this)); |
7c673cae | 1858 | dout(1) << " waiting for osdmap " << mdsmap->get_last_failure_osd_epoch() |
f67539c2 TL |
1859 | << " (which blocklists prior instance)" << dendl; |
1860 | objecter->wait_for_map(mdsmap->get_last_failure_osd_epoch(), | |
1861 | lambdafy(fin)); | |
7c673cae FG |
1862 | } |
1863 | } | |
1864 | } | |
1865 | ||
7c673cae FG |
1866 | void MDSRank::replay_done() |
1867 | { | |
f64942e4 AA |
1868 | if (!standby_replaying) { |
1869 | dout(1) << "Finished replaying journal" << dendl; | |
1870 | } else { | |
1871 | dout(5) << "Finished replaying journal as standby-replay" << dendl; | |
1872 | } | |
7c673cae FG |
1873 | |
1874 | if (is_standby_replay()) { | |
1875 | // The replay was done in standby state, and we are still in that state | |
11fdf7f2 | 1876 | ceph_assert(standby_replaying); |
7c673cae | 1877 | dout(10) << "setting replay timer" << dendl; |
11fdf7f2 | 1878 | timer.add_event_after(g_conf()->mds_replay_interval, |
7c673cae FG |
1879 | new C_MDS_StandbyReplayRestart(this)); |
1880 | return; | |
1881 | } else if (standby_replaying) { | |
1882 | // The replay was done in standby state, we have now _left_ that state | |
1883 | dout(10) << " last replay pass was as a standby; making final pass" << dendl; | |
1884 | standby_replaying = false; | |
1885 | standby_replay_restart(); | |
1886 | return; | |
1887 | } else { | |
1888 | // Replay is complete, journal read should be up to date | |
11fdf7f2 TL |
1889 | ceph_assert(mdlog->get_journaler()->get_read_pos() == mdlog->get_journaler()->get_write_pos()); |
1890 | ceph_assert(!is_standby_replay()); | |
7c673cae FG |
1891 | |
1892 | // Reformat and come back here | |
11fdf7f2 | 1893 | if (mdlog->get_journaler()->get_stream_format() < g_conf()->mds_journal_format) { |
f64942e4 | 1894 | dout(4) << "reformatting journal on standby-replay->replay transition" << dendl; |
7c673cae FG |
1895 | mdlog->reopen(new C_MDS_BootStart(this, MDS_BOOT_REPLAY_DONE)); |
1896 | return; | |
1897 | } | |
1898 | } | |
1899 | ||
1900 | dout(1) << "making mds journal writeable" << dendl; | |
1901 | mdlog->get_journaler()->set_writeable(); | |
1902 | mdlog->get_journaler()->trim_tail(); | |
1903 | ||
11fdf7f2 TL |
1904 | if (mdsmap->get_tableserver() == whoami && |
1905 | snapserver->upgrade_format()) { | |
1906 | dout(1) << "upgrading snaptable format" << dendl; | |
1907 | snapserver->save(new C_MDSInternalNoop); | |
1908 | } | |
1909 | ||
1910 | if (g_conf()->mds_wipe_sessions) { | |
7c673cae FG |
1911 | dout(1) << "wiping out client sessions" << dendl; |
1912 | sessionmap.wipe(); | |
1913 | sessionmap.save(new C_MDSInternalNoop); | |
1914 | } | |
11fdf7f2 | 1915 | if (g_conf()->mds_wipe_ino_prealloc) { |
7c673cae FG |
1916 | dout(1) << "wiping out ino prealloc from sessions" << dendl; |
1917 | sessionmap.wipe_ino_prealloc(); | |
1918 | sessionmap.save(new C_MDSInternalNoop); | |
1919 | } | |
11fdf7f2 TL |
1920 | if (g_conf()->mds_skip_ino) { |
1921 | inodeno_t i = g_conf()->mds_skip_ino; | |
7c673cae FG |
1922 | dout(1) << "skipping " << i << " inodes" << dendl; |
1923 | inotable->skip_inos(i); | |
1924 | inotable->save(new C_MDSInternalNoop); | |
1925 | } | |
1926 | ||
1927 | if (mdsmap->get_num_in_mds() == 1 && | |
1928 | mdsmap->get_num_failed_mds() == 0) { // just me! | |
1929 | dout(2) << "i am alone, moving to state reconnect" << dendl; | |
1930 | request_state(MDSMap::STATE_RECONNECT); | |
11fdf7f2 TL |
1931 | // sync snaptable cache |
1932 | snapclient->sync(new C_MDSInternalNoop); | |
7c673cae FG |
1933 | } else { |
1934 | dout(2) << "i am not alone, moving to state resolve" << dendl; | |
1935 | request_state(MDSMap::STATE_RESOLVE); | |
1936 | } | |
1937 | } | |
1938 | ||
1939 | void MDSRank::reopen_log() | |
1940 | { | |
1941 | dout(1) << "reopen_log" << dendl; | |
1942 | mdcache->rollback_uncommitted_fragments(); | |
1943 | } | |
1944 | ||
7c673cae FG |
1945 | void MDSRank::resolve_start() |
1946 | { | |
1947 | dout(1) << "resolve_start" << dendl; | |
1948 | ||
1949 | reopen_log(); | |
1950 | ||
f91f0fd5 TL |
1951 | calc_recovery_set(); |
1952 | ||
7c673cae FG |
1953 | mdcache->resolve_start(new C_MDS_VoidFn(this, &MDSRank::resolve_done)); |
1954 | finish_contexts(g_ceph_context, waiting_for_resolve); | |
1955 | } | |
11fdf7f2 | 1956 | |
7c673cae FG |
1957 | void MDSRank::resolve_done() |
1958 | { | |
1959 | dout(1) << "resolve_done" << dendl; | |
1960 | request_state(MDSMap::STATE_RECONNECT); | |
11fdf7f2 TL |
1961 | // sync snaptable cache |
1962 | snapclient->sync(new C_MDSInternalNoop); | |
7c673cae FG |
1963 | } |
1964 | ||
a4b75251 | 1965 | void MDSRank::apply_blocklist(const std::set<entity_addr_t> &addrs, epoch_t epoch) { |
33c7a0ef TL |
1966 | auto victims = server->apply_blocklist(); |
1967 | dout(4) << __func__ << ": killed " << victims << ", blocklisted sessions (" | |
a4b75251 TL |
1968 | << addrs.size() << " blocklist entries, " |
1969 | << sessionmap.get_sessions().size() << ")" << dendl; | |
1970 | if (victims) { | |
1971 | set_osd_epoch_barrier(epoch); | |
1972 | } | |
1973 | } | |
1974 | ||
1975 | ||
7c673cae FG |
1976 | void MDSRank::reconnect_start() |
1977 | { | |
1978 | dout(1) << "reconnect_start" << dendl; | |
1979 | ||
1980 | if (last_state == MDSMap::STATE_REPLAY) { | |
1981 | reopen_log(); | |
1982 | } | |
1983 | ||
f67539c2 | 1984 | // Drop any blocklisted clients from the SessionMap before going |
31f18b77 | 1985 | // into reconnect, so that we don't wait for them. |
f67539c2 TL |
1986 | objecter->enable_blocklist_events(); |
1987 | std::set<entity_addr_t> blocklist; | |
33c7a0ef | 1988 | std::set<entity_addr_t> range; |
31f18b77 | 1989 | epoch_t epoch = 0; |
33c7a0ef TL |
1990 | objecter->with_osdmap([&blocklist, &range, &epoch](const OSDMap& o) { |
1991 | o.get_blocklist(&blocklist, &range); | |
31f18b77 FG |
1992 | epoch = o.get_epoch(); |
1993 | }); | |
a4b75251 TL |
1994 | |
1995 | apply_blocklist(blocklist, epoch); | |
31f18b77 | 1996 | |
7c673cae FG |
1997 | server->reconnect_clients(new C_MDS_VoidFn(this, &MDSRank::reconnect_done)); |
1998 | finish_contexts(g_ceph_context, waiting_for_reconnect); | |
1999 | } | |
2000 | void MDSRank::reconnect_done() | |
2001 | { | |
2002 | dout(1) << "reconnect_done" << dendl; | |
2003 | request_state(MDSMap::STATE_REJOIN); // move to rejoin state | |
2004 | } | |
2005 | ||
2006 | void MDSRank::rejoin_joint_start() | |
2007 | { | |
2008 | dout(1) << "rejoin_joint_start" << dendl; | |
2009 | mdcache->rejoin_send_rejoins(); | |
2010 | } | |
2011 | void MDSRank::rejoin_start() | |
2012 | { | |
2013 | dout(1) << "rejoin_start" << dendl; | |
2014 | mdcache->rejoin_start(new C_MDS_VoidFn(this, &MDSRank::rejoin_done)); | |
a8e16298 | 2015 | finish_contexts(g_ceph_context, waiting_for_rejoin); |
7c673cae FG |
2016 | } |
2017 | void MDSRank::rejoin_done() | |
2018 | { | |
2019 | dout(1) << "rejoin_done" << dendl; | |
2020 | mdcache->show_subtrees(); | |
2021 | mdcache->show_cache(); | |
2022 | ||
e306af50 TL |
2023 | if (mdcache->is_any_uncommitted_fragment()) { |
2024 | dout(1) << " waiting for uncommitted fragments" << dendl; | |
f91f0fd5 | 2025 | mdcache->wait_for_uncommitted_fragments(new C_MDS_VoidFn(this, &MDSRank::rejoin_done)); |
e306af50 TL |
2026 | return; |
2027 | } | |
2028 | ||
7c673cae FG |
2029 | // funny case: is our cache empty? no subtrees? |
2030 | if (!mdcache->is_subtrees()) { | |
2031 | if (whoami == 0) { | |
2032 | // The root should always have a subtree! | |
2033 | clog->error() << "No subtrees found for root MDS rank!"; | |
2034 | damaged(); | |
11fdf7f2 | 2035 | ceph_assert(mdcache->is_subtrees()); |
7c673cae FG |
2036 | } else { |
2037 | dout(1) << " empty cache, no subtrees, leaving cluster" << dendl; | |
2038 | request_state(MDSMap::STATE_STOPPED); | |
2039 | } | |
2040 | return; | |
2041 | } | |
2042 | ||
11fdf7f2 | 2043 | if (replay_queue.empty() && !server->get_num_pending_reclaim()) { |
7c673cae | 2044 | request_state(MDSMap::STATE_ACTIVE); |
11fdf7f2 TL |
2045 | } else { |
2046 | replaying_requests_done = replay_queue.empty(); | |
7c673cae | 2047 | request_state(MDSMap::STATE_CLIENTREPLAY); |
11fdf7f2 | 2048 | } |
7c673cae FG |
2049 | } |
2050 | ||
2051 | void MDSRank::clientreplay_start() | |
2052 | { | |
2053 | dout(1) << "clientreplay_start" << dendl; | |
2054 | finish_contexts(g_ceph_context, waiting_for_replay); // kick waiters | |
7c673cae FG |
2055 | queue_one_replay(); |
2056 | } | |
2057 | ||
2058 | bool MDSRank::queue_one_replay() | |
2059 | { | |
11fdf7f2 TL |
2060 | if (!replay_queue.empty()) { |
2061 | queue_waiter(replay_queue.front()); | |
2062 | replay_queue.pop_front(); | |
2063 | return true; | |
2064 | } | |
2065 | if (!replaying_requests_done) { | |
2066 | replaying_requests_done = true; | |
2067 | mdlog->flush(); | |
2068 | } | |
2069 | maybe_clientreplay_done(); | |
2070 | return false; | |
2071 | } | |
2072 | ||
2073 | void MDSRank::maybe_clientreplay_done() | |
2074 | { | |
2075 | if (is_clientreplay() && get_want_state() == MDSMap::STATE_CLIENTREPLAY) { | |
2076 | ||
2077 | // don't go to active if there are session waiting for being reclaimed | |
2078 | if (replaying_requests_done && !server->get_num_pending_reclaim()) { | |
2079 | mdlog->wait_for_safe(new C_MDS_VoidFn(this, &MDSRank::clientreplay_done)); | |
2080 | return; | |
2081 | } | |
2082 | ||
2083 | dout(1) << " still have " << replay_queue.size() + (int)!replaying_requests_done | |
2084 | << " requests need to be replayed, " << server->get_num_pending_reclaim() | |
2085 | << " sessions need to be reclaimed" << dendl; | |
7c673cae | 2086 | } |
7c673cae FG |
2087 | } |
2088 | ||
2089 | void MDSRank::clientreplay_done() | |
2090 | { | |
2091 | dout(1) << "clientreplay_done" << dendl; | |
2092 | request_state(MDSMap::STATE_ACTIVE); | |
2093 | } | |
2094 | ||
2095 | void MDSRank::active_start() | |
2096 | { | |
2097 | dout(1) << "active_start" << dendl; | |
2098 | ||
28e407b8 AA |
2099 | if (last_state == MDSMap::STATE_CREATING || |
2100 | last_state == MDSMap::STATE_STARTING) { | |
7c673cae FG |
2101 | mdcache->open_root(); |
2102 | } | |
2103 | ||
f67539c2 TL |
2104 | dout(10) << __func__ << ": initializing metrics handler" << dendl; |
2105 | metrics_handler.init(); | |
2106 | messenger->add_dispatcher_tail(&metrics_handler); | |
2107 | ||
2108 | // metric aggregation is solely done by rank 0 | |
2109 | if (is_rank0()) { | |
2110 | dout(10) << __func__ << ": initializing metric aggregator" << dendl; | |
2111 | ceph_assert(metric_aggregator == nullptr); | |
2112 | metric_aggregator = std::make_unique<MetricAggregator>(cct, this, mgrc); | |
2113 | metric_aggregator->init(); | |
2114 | messenger->add_dispatcher_tail(metric_aggregator.get()); | |
2115 | } | |
2116 | ||
7c673cae FG |
2117 | mdcache->clean_open_file_lists(); |
2118 | mdcache->export_remaining_imported_caps(); | |
2119 | finish_contexts(g_ceph_context, waiting_for_replay); // kick waiters | |
7c673cae FG |
2120 | |
2121 | mdcache->reissue_all_caps(); | |
7c673cae FG |
2122 | |
2123 | finish_contexts(g_ceph_context, waiting_for_active); // kick waiters | |
2124 | } | |
2125 | ||
2126 | void MDSRank::recovery_done(int oldstate) | |
2127 | { | |
2128 | dout(1) << "recovery_done -- successful recovery!" << dendl; | |
11fdf7f2 | 2129 | ceph_assert(is_clientreplay() || is_active()); |
7c673cae FG |
2130 | |
2131 | if (oldstate == MDSMap::STATE_CREATING) | |
2132 | return; | |
2133 | ||
2134 | mdcache->start_recovered_truncates(); | |
9f95a23c | 2135 | mdcache->start_purge_inodes(); |
adb31ebb | 2136 | mdcache->start_files_to_recover(); |
7c673cae | 2137 | |
7c673cae FG |
2138 | mdcache->populate_mydir(); |
2139 | } | |
2140 | ||
2141 | void MDSRank::creating_done() | |
2142 | { | |
2143 | dout(1)<< "creating_done" << dendl; | |
2144 | request_state(MDSMap::STATE_ACTIVE); | |
11fdf7f2 TL |
2145 | // sync snaptable cache |
2146 | snapclient->sync(new C_MDSInternalNoop); | |
7c673cae FG |
2147 | } |
2148 | ||
2149 | void MDSRank::boot_create() | |
2150 | { | |
2151 | dout(3) << "boot_create" << dendl; | |
2152 | ||
2153 | MDSGatherBuilder fin(g_ceph_context, new C_MDS_VoidFn(this, &MDSRank::creating_done)); | |
2154 | ||
2155 | mdcache->init_layouts(); | |
2156 | ||
7c673cae FG |
2157 | inotable->set_rank(whoami); |
2158 | sessionmap.set_rank(whoami); | |
2159 | ||
2160 | // start with a fresh journal | |
2161 | dout(10) << "boot_create creating fresh journal" << dendl; | |
2162 | mdlog->create(fin.new_sub()); | |
2163 | ||
2164 | // open new journal segment, but do not journal subtree map (yet) | |
2165 | mdlog->prepare_new_segment(); | |
2166 | ||
2167 | if (whoami == mdsmap->get_root()) { | |
2168 | dout(3) << "boot_create creating fresh hierarchy" << dendl; | |
2169 | mdcache->create_empty_hierarchy(fin.get()); | |
2170 | } | |
2171 | ||
2172 | dout(3) << "boot_create creating mydir hierarchy" << dendl; | |
2173 | mdcache->create_mydir_hierarchy(fin.get()); | |
2174 | ||
11fdf7f2 TL |
2175 | dout(3) << "boot_create creating global snaprealm" << dendl; |
2176 | mdcache->create_global_snaprealm(); | |
2177 | ||
7c673cae FG |
2178 | // fixme: fake out inotable (reset, pretend loaded) |
2179 | dout(10) << "boot_create creating fresh inotable table" << dendl; | |
2180 | inotable->reset(); | |
2181 | inotable->save(fin.new_sub()); | |
2182 | ||
2183 | // write empty sessionmap | |
2184 | sessionmap.save(fin.new_sub()); | |
2185 | ||
2186 | // Create empty purge queue | |
2187 | purge_queue.create(new C_IO_Wrapper(this, fin.new_sub())); | |
2188 | ||
2189 | // initialize tables | |
2190 | if (mdsmap->get_tableserver() == whoami) { | |
2191 | dout(10) << "boot_create creating fresh snaptable" << dendl; | |
11fdf7f2 | 2192 | snapserver->set_rank(whoami); |
7c673cae FG |
2193 | snapserver->reset(); |
2194 | snapserver->save(fin.new_sub()); | |
2195 | } | |
2196 | ||
11fdf7f2 | 2197 | ceph_assert(g_conf()->mds_kill_create_at != 1); |
7c673cae FG |
2198 | |
2199 | // ok now journal it | |
2200 | mdlog->journal_segment_subtree_map(fin.new_sub()); | |
2201 | mdlog->flush(); | |
2202 | ||
31f18b77 | 2203 | // Usually we do this during reconnect, but creation skips that. |
f67539c2 | 2204 | objecter->enable_blocklist_events(); |
31f18b77 | 2205 | |
7c673cae FG |
2206 | fin.activate(); |
2207 | } | |
2208 | ||
2209 | void MDSRank::stopping_start() | |
2210 | { | |
a8e16298 | 2211 | dout(2) << "Stopping..." << dendl; |
7c673cae FG |
2212 | |
2213 | if (mdsmap->get_num_in_mds() == 1 && !sessionmap.empty()) { | |
11fdf7f2 TL |
2214 | std::vector<Session*> victims; |
2215 | const auto& sessions = sessionmap.get_sessions(); | |
2216 | for (const auto& p : sessions) { | |
2217 | if (!p.first.is_client()) { | |
2218 | continue; | |
2219 | } | |
2220 | ||
2221 | Session *s = p.second; | |
2222 | victims.push_back(s); | |
2223 | } | |
2224 | ||
2225 | dout(20) << __func__ << " matched " << victims.size() << " sessions" << dendl; | |
2226 | ceph_assert(!victims.empty()); | |
2227 | ||
2228 | C_GatherBuilder gather(g_ceph_context, new C_MDSInternalNoop); | |
2229 | for (const auto &s : victims) { | |
f67539c2 | 2230 | CachedStackStringStream css; |
11fdf7f2 | 2231 | evict_client(s->get_client().v, false, |
f67539c2 | 2232 | g_conf()->mds_session_blocklist_on_evict, *css, gather.new_sub()); |
11fdf7f2 TL |
2233 | } |
2234 | gather.activate(); | |
7c673cae FG |
2235 | } |
2236 | ||
2237 | mdcache->shutdown_start(); | |
2238 | } | |
2239 | ||
2240 | void MDSRank::stopping_done() | |
2241 | { | |
a8e16298 | 2242 | dout(2) << "Finished stopping..." << dendl; |
7c673cae FG |
2243 | |
2244 | // tell monitor we shut down cleanly. | |
2245 | request_state(MDSMap::STATE_STOPPED); | |
2246 | } | |
2247 | ||
2248 | void MDSRankDispatcher::handle_mds_map( | |
9f95a23c | 2249 | const cref_t<MMDSMap> &m, |
11fdf7f2 | 2250 | const MDSMap &oldmap) |
7c673cae FG |
2251 | { |
2252 | // I am only to be passed MDSMaps in which I hold a rank | |
11fdf7f2 | 2253 | ceph_assert(whoami != MDS_RANK_NONE); |
7c673cae | 2254 | |
7c673cae | 2255 | mds_gid_t mds_gid = mds_gid_t(monc->get_global_id()); |
2a845540 TL |
2256 | MDSMap::DaemonState oldstate = oldmap.get_state_gid(mds_gid); |
2257 | if (oldstate == MDSMap::STATE_NULL) { | |
2258 | // monitor may skip sending me the STANDBY map (e.g. if paxos_propose_interval is high) | |
2259 | // Assuming I have passed STANDBY state if I got a rank in the first map. | |
2260 | oldstate = MDSMap::STATE_STANDBY; | |
2261 | } | |
2262 | // I should not miss map update | |
2263 | ceph_assert(state == oldstate); | |
7c673cae FG |
2264 | state = mdsmap->get_state_gid(mds_gid); |
2265 | if (state != oldstate) { | |
2266 | last_state = oldstate; | |
2267 | incarnation = mdsmap->get_inc_gid(mds_gid); | |
2268 | } | |
2269 | ||
2270 | version_t epoch = m->get_epoch(); | |
2271 | ||
2272 | // note source's map version | |
2273 | if (m->get_source().is_mds() && | |
2274 | peer_mdsmap_epoch[mds_rank_t(m->get_source().num())] < epoch) { | |
2275 | dout(15) << " peer " << m->get_source() | |
2276 | << " has mdsmap epoch >= " << epoch | |
2277 | << dendl; | |
2278 | peer_mdsmap_epoch[mds_rank_t(m->get_source().num())] = epoch; | |
2279 | } | |
2280 | ||
2281 | // Validate state transitions while I hold a rank | |
2282 | if (!MDSMap::state_transition_valid(oldstate, state)) { | |
2283 | derr << "Invalid state transition " << ceph_mds_state_name(oldstate) | |
2284 | << "->" << ceph_mds_state_name(state) << dendl; | |
2285 | respawn(); | |
2286 | } | |
2287 | ||
2288 | if (oldstate != state) { | |
2289 | // update messenger. | |
20effc67 TL |
2290 | auto sleep_rank_change = g_conf().get_val<double>("mds_sleep_rank_change"); |
2291 | if (unlikely(sleep_rank_change > 0)) { | |
2292 | // This is to trigger a race where another rank tries to connect to this | |
2293 | // MDS before an update to the messenger "myname" is processed. This race | |
2294 | // should be closed by ranks holding messages until the rank is out of a | |
2295 | // "bootstrapping" state. | |
2296 | usleep(sleep_rank_change); | |
2297 | } if (state == MDSMap::STATE_STANDBY_REPLAY) { | |
7c673cae | 2298 | dout(1) << "handle_mds_map i am now mds." << mds_gid << "." << incarnation |
20effc67 | 2299 | << " replaying mds." << whoami << "." << incarnation << dendl; |
7c673cae FG |
2300 | messenger->set_myname(entity_name_t::MDS(mds_gid)); |
2301 | } else { | |
2302 | dout(1) << "handle_mds_map i am now mds." << whoami << "." << incarnation << dendl; | |
2303 | messenger->set_myname(entity_name_t::MDS(whoami)); | |
2304 | } | |
2305 | } | |
2306 | ||
2307 | // tell objecter my incarnation | |
2308 | if (objecter->get_client_incarnation() != incarnation) | |
2309 | objecter->set_client_incarnation(incarnation); | |
2310 | ||
f67539c2 | 2311 | if (mdsmap->get_required_client_features() != oldmap.get_required_client_features()) |
11fdf7f2 TL |
2312 | server->update_required_client_features(); |
2313 | ||
7c673cae | 2314 | // for debug |
11fdf7f2 | 2315 | if (g_conf()->mds_dump_cache_on_map) |
7c673cae FG |
2316 | mdcache->dump_cache(); |
2317 | ||
1adf2230 AA |
2318 | cluster_degraded = mdsmap->is_degraded(); |
2319 | ||
2320 | // mdsmap and oldmap can be discontinuous. failover might happen in the missing mdsmap. | |
2321 | // the 'restart' set tracks ranks that have restarted since the old mdsmap | |
2322 | set<mds_rank_t> restart; | |
2323 | // replaying mds does not communicate with other ranks | |
2324 | if (state >= MDSMap::STATE_RESOLVE) { | |
2325 | // did someone fail? | |
2326 | // new down? | |
2327 | set<mds_rank_t> olddown, down; | |
11fdf7f2 | 2328 | oldmap.get_down_mds_set(&olddown); |
1adf2230 AA |
2329 | mdsmap->get_down_mds_set(&down); |
2330 | for (const auto& r : down) { | |
11fdf7f2 TL |
2331 | if (oldmap.have_inst(r) && olddown.count(r) == 0) { |
2332 | messenger->mark_down_addrs(oldmap.get_addrs(r)); | |
1adf2230 AA |
2333 | handle_mds_failure(r); |
2334 | } | |
2335 | } | |
2336 | ||
2337 | // did someone fail? | |
2338 | // did their addr/inst change? | |
2339 | set<mds_rank_t> up; | |
2340 | mdsmap->get_up_mds_set(up); | |
2341 | for (const auto& r : up) { | |
2342 | auto& info = mdsmap->get_info(r); | |
11fdf7f2 TL |
2343 | if (oldmap.have_inst(r)) { |
2344 | auto& oldinfo = oldmap.get_info(r); | |
1adf2230 | 2345 | if (info.inc != oldinfo.inc) { |
11fdf7f2 | 2346 | messenger->mark_down_addrs(oldinfo.get_addrs()); |
1adf2230 AA |
2347 | if (info.state == MDSMap::STATE_REPLAY || |
2348 | info.state == MDSMap::STATE_RESOLVE) { | |
2349 | restart.insert(r); | |
2350 | handle_mds_failure(r); | |
2351 | } else { | |
11fdf7f2 | 2352 | ceph_assert(info.state == MDSMap::STATE_STARTING || |
1adf2230 AA |
2353 | info.state == MDSMap::STATE_ACTIVE); |
2354 | // -> stopped (missing) -> starting -> active | |
2355 | restart.insert(r); | |
2356 | mdcache->migrator->handle_mds_failure_or_stop(r); | |
11fdf7f2 TL |
2357 | if (mdsmap->get_tableserver() == whoami) |
2358 | snapserver->handle_mds_failure_or_stop(r); | |
1adf2230 AA |
2359 | } |
2360 | } | |
2361 | } else { | |
2362 | if (info.state == MDSMap::STATE_REPLAY || | |
2363 | info.state == MDSMap::STATE_RESOLVE) { | |
2364 | // -> starting/creating (missing) -> active (missing) -> replay -> resolve | |
2365 | restart.insert(r); | |
2366 | handle_mds_failure(r); | |
2367 | } else { | |
11fdf7f2 | 2368 | ceph_assert(info.state == MDSMap::STATE_CREATING || |
1adf2230 AA |
2369 | info.state == MDSMap::STATE_STARTING || |
2370 | info.state == MDSMap::STATE_ACTIVE); | |
2371 | } | |
2372 | } | |
2373 | } | |
2374 | } | |
2375 | ||
7c673cae FG |
2376 | // did it change? |
2377 | if (oldstate != state) { | |
2378 | dout(1) << "handle_mds_map state change " | |
2379 | << ceph_mds_state_name(oldstate) << " --> " | |
2380 | << ceph_mds_state_name(state) << dendl; | |
11fdf7f2 | 2381 | beacon.set_want_state(*mdsmap, state); |
7c673cae FG |
2382 | |
2383 | if (oldstate == MDSMap::STATE_STANDBY_REPLAY) { | |
2384 | dout(10) << "Monitor activated us! Deactivating replay loop" << dendl; | |
20effc67 | 2385 | ceph_assert (state == MDSMap::STATE_REPLAY); |
7c673cae FG |
2386 | } else { |
2387 | // did i just recover? | |
2388 | if ((is_active() || is_clientreplay()) && | |
2389 | (oldstate == MDSMap::STATE_CREATING || | |
2390 | oldstate == MDSMap::STATE_REJOIN || | |
2391 | oldstate == MDSMap::STATE_RECONNECT)) | |
2392 | recovery_done(oldstate); | |
2393 | ||
2394 | if (is_active()) { | |
2395 | active_start(); | |
2396 | } else if (is_any_replay()) { | |
2397 | replay_start(); | |
2398 | } else if (is_resolve()) { | |
2399 | resolve_start(); | |
2400 | } else if (is_reconnect()) { | |
2401 | reconnect_start(); | |
2402 | } else if (is_rejoin()) { | |
2403 | rejoin_start(); | |
2404 | } else if (is_clientreplay()) { | |
2405 | clientreplay_start(); | |
2406 | } else if (is_creating()) { | |
2407 | boot_create(); | |
2408 | } else if (is_starting()) { | |
2409 | boot_start(); | |
2410 | } else if (is_stopping()) { | |
11fdf7f2 | 2411 | ceph_assert(oldstate == MDSMap::STATE_ACTIVE); |
7c673cae FG |
2412 | stopping_start(); |
2413 | } | |
2414 | } | |
2415 | } | |
2416 | ||
2417 | // RESOLVE | |
2418 | // is someone else newly resolving? | |
1adf2230 | 2419 | if (state >= MDSMap::STATE_RESOLVE) { |
11fdf7f2 TL |
2420 | // recover snaptable |
2421 | if (mdsmap->get_tableserver() == whoami) { | |
2422 | if (oldstate < MDSMap::STATE_RESOLVE) { | |
2423 | set<mds_rank_t> s; | |
2424 | mdsmap->get_mds_set_lower_bound(s, MDSMap::STATE_RESOLVE); | |
2425 | snapserver->finish_recovery(s); | |
2426 | } else { | |
2427 | set<mds_rank_t> old_set, new_set; | |
2428 | oldmap.get_mds_set_lower_bound(old_set, MDSMap::STATE_RESOLVE); | |
2429 | mdsmap->get_mds_set_lower_bound(new_set, MDSMap::STATE_RESOLVE); | |
2430 | for (const auto& r : new_set) { | |
2431 | if (r == whoami) | |
2432 | continue; // not me | |
2433 | if (!old_set.count(r) || restart.count(r)) { // newly so? | |
2434 | snapserver->handle_mds_recovery(r); | |
2435 | } | |
2436 | } | |
2437 | } | |
2438 | } | |
2439 | ||
2440 | if ((!oldmap.is_resolving() || !restart.empty()) && mdsmap->is_resolving()) { | |
7c673cae FG |
2441 | set<mds_rank_t> resolve; |
2442 | mdsmap->get_mds_set(resolve, MDSMap::STATE_RESOLVE); | |
2443 | dout(10) << " resolve set is " << resolve << dendl; | |
2444 | calc_recovery_set(); | |
2445 | mdcache->send_resolves(); | |
2446 | } | |
2447 | } | |
2448 | ||
2449 | // REJOIN | |
2450 | // is everybody finally rejoining? | |
1adf2230 | 2451 | if (state >= MDSMap::STATE_REJOIN) { |
7c673cae | 2452 | // did we start? |
11fdf7f2 | 2453 | if (!oldmap.is_rejoining() && mdsmap->is_rejoining()) |
7c673cae FG |
2454 | rejoin_joint_start(); |
2455 | ||
2456 | // did we finish? | |
11fdf7f2 TL |
2457 | if (g_conf()->mds_dump_cache_after_rejoin && |
2458 | oldmap.is_rejoining() && !mdsmap->is_rejoining()) | |
7c673cae FG |
2459 | mdcache->dump_cache(); // for DEBUG only |
2460 | ||
d2e6a577 FG |
2461 | if (oldstate >= MDSMap::STATE_REJOIN || |
2462 | oldstate == MDSMap::STATE_STARTING) { | |
7c673cae FG |
2463 | // ACTIVE|CLIENTREPLAY|REJOIN => we can discover from them. |
2464 | set<mds_rank_t> olddis, dis; | |
11fdf7f2 | 2465 | oldmap.get_mds_set_lower_bound(olddis, MDSMap::STATE_REJOIN); |
1adf2230 AA |
2466 | mdsmap->get_mds_set_lower_bound(dis, MDSMap::STATE_REJOIN); |
2467 | for (const auto& r : dis) { | |
2468 | if (r == whoami) | |
2469 | continue; // not me | |
2470 | if (!olddis.count(r) || restart.count(r)) { // newly so? | |
2471 | mdcache->kick_discovers(r); | |
2472 | mdcache->kick_open_ino_peers(r); | |
7c673cae | 2473 | } |
1adf2230 | 2474 | } |
7c673cae FG |
2475 | } |
2476 | } | |
2477 | ||
11fdf7f2 | 2478 | if (oldmap.is_degraded() && !cluster_degraded && state >= MDSMap::STATE_ACTIVE) { |
7c673cae FG |
2479 | dout(1) << "cluster recovered." << dendl; |
2480 | auto it = waiting_for_active_peer.find(MDS_RANK_NONE); | |
2481 | if (it != waiting_for_active_peer.end()) { | |
2482 | queue_waiters(it->second); | |
2483 | waiting_for_active_peer.erase(it); | |
2484 | } | |
2485 | } | |
2486 | ||
20effc67 TL |
2487 | // did someone leave a "bootstrapping" state? We can't connect until then to |
2488 | // allow messenger "myname" updates. | |
2489 | { | |
2490 | std::vector<mds_rank_t> erase; | |
2491 | for (auto& [rank, queue] : waiting_for_bootstrapping_peer) { | |
2492 | auto state = mdsmap->get_state(rank); | |
2493 | if (state > MDSMap::STATE_REPLAY) { | |
2494 | queue_waiters(queue); | |
2495 | erase.push_back(rank); | |
2496 | } | |
2497 | } | |
2498 | for (const auto& rank : erase) { | |
2499 | waiting_for_bootstrapping_peer.erase(rank); | |
2500 | } | |
2501 | } | |
2502 | // for testing... | |
2503 | if (unlikely(g_conf().get_val<bool>("mds_connect_bootstrapping"))) { | |
2504 | std::set<mds_rank_t> bootstrapping; | |
2505 | mdsmap->get_mds_set(bootstrapping, MDSMap::STATE_REPLAY); | |
2506 | mdsmap->get_mds_set(bootstrapping, MDSMap::STATE_CREATING); | |
2507 | mdsmap->get_mds_set(bootstrapping, MDSMap::STATE_STARTING); | |
2508 | for (const auto& rank : bootstrapping) { | |
2509 | auto m = make_message<MMDSMap>(monc->get_fsid(), *mdsmap); | |
2510 | send_message_mds(std::move(m), rank); | |
2511 | } | |
2512 | } | |
2513 | ||
7c673cae | 2514 | // did someone go active? |
1adf2230 AA |
2515 | if (state >= MDSMap::STATE_CLIENTREPLAY && |
2516 | oldstate >= MDSMap::STATE_CLIENTREPLAY) { | |
7c673cae | 2517 | set<mds_rank_t> oldactive, active; |
11fdf7f2 | 2518 | oldmap.get_mds_set_lower_bound(oldactive, MDSMap::STATE_CLIENTREPLAY); |
1adf2230 AA |
2519 | mdsmap->get_mds_set_lower_bound(active, MDSMap::STATE_CLIENTREPLAY); |
2520 | for (const auto& r : active) { | |
2521 | if (r == whoami) | |
2522 | continue; // not me | |
2523 | if (!oldactive.count(r) || restart.count(r)) // newly so? | |
2524 | handle_mds_recovery(r); | |
7c673cae FG |
2525 | } |
2526 | } | |
2527 | ||
11fdf7f2 | 2528 | if (is_clientreplay() || is_active() || is_stopping()) { |
7c673cae FG |
2529 | // did anyone stop? |
2530 | set<mds_rank_t> oldstopped, stopped; | |
11fdf7f2 | 2531 | oldmap.get_stopped_mds_set(oldstopped); |
7c673cae | 2532 | mdsmap->get_stopped_mds_set(stopped); |
1adf2230 | 2533 | for (const auto& r : stopped) |
11fdf7f2 | 2534 | if (oldstopped.count(r) == 0) { // newly so? |
1adf2230 | 2535 | mdcache->migrator->handle_mds_failure_or_stop(r); |
11fdf7f2 TL |
2536 | if (mdsmap->get_tableserver() == whoami) |
2537 | snapserver->handle_mds_failure_or_stop(r); | |
2538 | } | |
7c673cae FG |
2539 | } |
2540 | ||
2541 | { | |
11fdf7f2 | 2542 | map<epoch_t,MDSContext::vec >::iterator p = waiting_for_mdsmap.begin(); |
7c673cae | 2543 | while (p != waiting_for_mdsmap.end() && p->first <= mdsmap->get_epoch()) { |
11fdf7f2 | 2544 | MDSContext::vec ls; |
7c673cae FG |
2545 | ls.swap(p->second); |
2546 | waiting_for_mdsmap.erase(p++); | |
91327a77 | 2547 | queue_waiters(ls); |
7c673cae FG |
2548 | } |
2549 | } | |
2550 | ||
2551 | if (is_active()) { | |
2552 | // Before going active, set OSD epoch barrier to latest (so that | |
2553 | // we don't risk handing out caps to clients with old OSD maps that | |
2554 | // might not include barriers from the previous incarnation of this MDS) | |
2555 | set_osd_epoch_barrier(objecter->with_osdmap( | |
2556 | std::mem_fn(&OSDMap::get_epoch))); | |
7c673cae | 2557 | |
11fdf7f2 TL |
2558 | /* Now check if we should hint to the OSD that a read may follow */ |
2559 | if (mdsmap->has_standby_replay(whoami)) | |
2560 | mdlog->set_write_iohint(0); | |
2561 | else | |
2562 | mdlog->set_write_iohint(CEPH_OSD_OP_FLAG_FADVISE_DONTNEED); | |
7c673cae FG |
2563 | } |
2564 | ||
11fdf7f2 | 2565 | if (oldmap.get_max_mds() != mdsmap->get_max_mds()) { |
7c673cae FG |
2566 | purge_queue.update_op_limit(*mdsmap); |
2567 | } | |
eafe8130 | 2568 | |
9f95a23c TL |
2569 | if (mdsmap->get_inline_data_enabled() && !oldmap.get_inline_data_enabled()) |
2570 | dout(0) << "WARNING: inline_data support has been deprecated and will be removed in a future release" << dendl; | |
2571 | ||
f6b5b4d7 | 2572 | mdcache->handle_mdsmap(*mdsmap, oldmap); |
f67539c2 TL |
2573 | |
2574 | if (metric_aggregator != nullptr) { | |
2575 | metric_aggregator->notify_mdsmap(*mdsmap); | |
2576 | } | |
2577 | metrics_handler.notify_mdsmap(*mdsmap); | |
7c673cae FG |
2578 | } |
2579 | ||
2580 | void MDSRank::handle_mds_recovery(mds_rank_t who) | |
2581 | { | |
2582 | dout(5) << "handle_mds_recovery mds." << who << dendl; | |
2583 | ||
2584 | mdcache->handle_mds_recovery(who); | |
2585 | ||
7c673cae FG |
2586 | queue_waiters(waiting_for_active_peer[who]); |
2587 | waiting_for_active_peer.erase(who); | |
2588 | } | |
2589 | ||
2590 | void MDSRank::handle_mds_failure(mds_rank_t who) | |
2591 | { | |
2592 | if (who == whoami) { | |
2593 | dout(5) << "handle_mds_failure for myself; not doing anything" << dendl; | |
2594 | return; | |
2595 | } | |
2596 | dout(5) << "handle_mds_failure mds." << who << dendl; | |
2597 | ||
2598 | mdcache->handle_mds_failure(who); | |
2599 | ||
11fdf7f2 TL |
2600 | if (mdsmap->get_tableserver() == whoami) |
2601 | snapserver->handle_mds_failure_or_stop(who); | |
2602 | ||
7c673cae | 2603 | snapclient->handle_mds_failure(who); |
f67539c2 TL |
2604 | |
2605 | scrubstack->handle_mds_failure(who); | |
7c673cae FG |
2606 | } |
2607 | ||
9f95a23c TL |
2608 | void MDSRankDispatcher::handle_asok_command( |
2609 | std::string_view command, | |
2610 | const cmdmap_t& cmdmap, | |
2611 | Formatter *f, | |
2612 | const bufferlist &inbl, | |
2613 | std::function<void(int,const std::string&,bufferlist&)> on_finish) | |
7c673cae | 2614 | { |
9f95a23c | 2615 | int r = 0; |
f67539c2 | 2616 | CachedStackStringStream css; |
9f95a23c | 2617 | bufferlist outbl; |
aee94f69 TL |
2618 | dout(10) << __func__ << ": " << command << dendl; |
2619 | if (command == "dump_ops_in_flight") { | |
7c673cae | 2620 | if (!op_tracker.dump_ops_in_flight(f)) { |
f67539c2 | 2621 | *css << "op_tracker disabled; set mds_enable_op_tracker=true to enable"; |
7c673cae | 2622 | } |
aee94f69 TL |
2623 | } else if (command == "ops") { |
2624 | vector<string> flags; | |
2625 | cmd_getval(cmdmap, "flags", flags); | |
2626 | std::unique_lock l(mds_lock, std::defer_lock); | |
2627 | auto lambda = OpTracker::default_dumper; | |
2628 | if (flags.size()) { | |
2629 | /* use std::function if we actually want to capture flags someday */ | |
2630 | lambda = [](const TrackedOp& op, Formatter* f) { | |
2631 | auto* req = dynamic_cast<const MDRequestImpl*>(&op); | |
2632 | if (req) { | |
2633 | req->dump_with_mds_lock(f); | |
2634 | } else { | |
2635 | op.dump_type(f); | |
2636 | } | |
2637 | }; | |
2638 | l.lock(); | |
2639 | } | |
2640 | if (!op_tracker.dump_ops_in_flight(f, false, {""}, false, lambda)) { | |
2641 | *css << "op_tracker disabled; set mds_enable_op_tracker=true to enable"; | |
2642 | } | |
7c673cae FG |
2643 | } else if (command == "dump_blocked_ops") { |
2644 | if (!op_tracker.dump_ops_in_flight(f, true)) { | |
f67539c2 | 2645 | *css << "op_tracker disabled; set mds_enable_op_tracker=true to enable"; |
7c673cae | 2646 | } |
1e59de90 TL |
2647 | } else if (command == "dump_blocked_ops_count") { |
2648 | if (!op_tracker.dump_ops_in_flight(f, true, {""}, true)) { | |
2649 | *css << "op_tracker disabled; set mds_enable_op_tracker=true to enable"; | |
2650 | } | |
7c673cae FG |
2651 | } else if (command == "dump_historic_ops") { |
2652 | if (!op_tracker.dump_historic_ops(f)) { | |
f67539c2 | 2653 | *css << "op_tracker disabled; set mds_enable_op_tracker=true to enable"; |
7c673cae FG |
2654 | } |
2655 | } else if (command == "dump_historic_ops_by_duration") { | |
2656 | if (!op_tracker.dump_historic_ops(f, true)) { | |
f67539c2 | 2657 | *css << "op_tracker disabled; set mds_enable_op_tracker=true to enable"; |
7c673cae FG |
2658 | } |
2659 | } else if (command == "osdmap barrier") { | |
2660 | int64_t target_epoch = 0; | |
9f95a23c | 2661 | bool got_val = cmd_getval(cmdmap, "target_epoch", target_epoch); |
7c673cae FG |
2662 | |
2663 | if (!got_val) { | |
f67539c2 TL |
2664 | *css << "no target epoch given"; |
2665 | r = -CEPHFS_EINVAL; | |
9f95a23c TL |
2666 | goto out; |
2667 | } | |
2668 | { | |
2669 | std::lock_guard l(mds_lock); | |
2670 | set_osd_epoch_barrier(target_epoch); | |
7c673cae | 2671 | } |
f67539c2 TL |
2672 | boost::system::error_code ec; |
2673 | dout(4) << __func__ << ": possibly waiting for OSD epoch " << target_epoch << dendl; | |
2674 | objecter->wait_for_map(target_epoch, ceph::async::use_blocked[ec]); | |
9f95a23c TL |
2675 | } else if (command == "session ls" || |
2676 | command == "client ls") { | |
11fdf7f2 | 2677 | std::lock_guard l(mds_lock); |
adb31ebb | 2678 | bool cap_dump = false; |
9f95a23c | 2679 | std::vector<std::string> filter_args; |
adb31ebb | 2680 | cmd_getval(cmdmap, "cap_dump", cap_dump); |
9f95a23c | 2681 | cmd_getval(cmdmap, "filters", filter_args); |
adb31ebb | 2682 | |
9f95a23c | 2683 | SessionFilter filter; |
f67539c2 | 2684 | r = filter.parse(filter_args, css.get()); |
9f95a23c TL |
2685 | if (r != 0) { |
2686 | goto out; | |
2687 | } | |
adb31ebb | 2688 | dump_sessions(filter, f, cap_dump); |
9f95a23c TL |
2689 | } else if (command == "session evict" || |
2690 | command == "client evict") { | |
2691 | std::lock_guard l(mds_lock); | |
2692 | std::vector<std::string> filter_args; | |
2693 | cmd_getval(cmdmap, "filters", filter_args); | |
7c673cae | 2694 | |
9f95a23c | 2695 | SessionFilter filter; |
f67539c2 | 2696 | r = filter.parse(filter_args, css.get()); |
9f95a23c | 2697 | if (r != 0) { |
f67539c2 | 2698 | r = -CEPHFS_EINVAL; |
9f95a23c TL |
2699 | goto out; |
2700 | } | |
2701 | evict_clients(filter, on_finish); | |
2702 | return; | |
2703 | } else if (command == "session kill") { | |
7c673cae | 2704 | std::string client_id; |
9f95a23c | 2705 | if (!cmd_getval(cmdmap, "client_id", client_id)) { |
f67539c2 TL |
2706 | *css << "Invalid client_id specified"; |
2707 | r = -CEPHFS_ENOENT; | |
9f95a23c | 2708 | goto out; |
7c673cae | 2709 | } |
9f95a23c | 2710 | std::lock_guard l(mds_lock); |
31f18b77 | 2711 | bool evicted = evict_client(strtol(client_id.c_str(), 0, 10), true, |
f67539c2 | 2712 | g_conf()->mds_session_blocklist_on_evict, *css); |
31f18b77 | 2713 | if (!evicted) { |
f67539c2 TL |
2714 | dout(15) << css->strv() << dendl; |
2715 | r = -CEPHFS_ENOENT; | |
7c673cae | 2716 | } |
9f95a23c TL |
2717 | } else if (command == "session config" || |
2718 | command == "client config") { | |
92f5a8d4 TL |
2719 | int64_t client_id; |
2720 | std::string option; | |
2721 | std::string value; | |
2722 | ||
9f95a23c TL |
2723 | cmd_getval(cmdmap, "client_id", client_id); |
2724 | cmd_getval(cmdmap, "option", option); | |
2725 | bool got_value = cmd_getval(cmdmap, "value", value); | |
92f5a8d4 | 2726 | |
9f95a23c | 2727 | std::lock_guard l(mds_lock); |
f67539c2 | 2728 | r = config_client(client_id, !got_value, option, value, *css); |
9f95a23c TL |
2729 | } else if (command == "scrub start" || |
2730 | command == "scrub_start") { | |
f67539c2 TL |
2731 | if (whoami != 0) { |
2732 | *css << "Not rank 0"; | |
2733 | r = -CEPHFS_EXDEV; | |
2734 | goto out; | |
2735 | } | |
2736 | ||
7c673cae | 2737 | string path; |
9f95a23c | 2738 | string tag; |
7c673cae | 2739 | vector<string> scrubop_vec; |
9f95a23c TL |
2740 | cmd_getval(cmdmap, "scrubops", scrubop_vec); |
2741 | cmd_getval(cmdmap, "path", path); | |
2742 | cmd_getval(cmdmap, "tag", tag); | |
11fdf7f2 | 2743 | |
9f95a23c TL |
2744 | finisher->queue( |
2745 | new LambdaContext( | |
2746 | [this, on_finish, f, path, tag, scrubop_vec](int r) { | |
2747 | command_scrub_start( | |
2748 | f, path, tag, scrubop_vec, | |
2749 | new LambdaContext( | |
2750 | [on_finish](int r) { | |
2751 | bufferlist outbl; | |
2752 | on_finish(r, {}, outbl); | |
2753 | })); | |
2754 | })); | |
2755 | return; | |
2756 | } else if (command == "scrub abort") { | |
f67539c2 TL |
2757 | if (whoami != 0) { |
2758 | *css << "Not rank 0"; | |
2759 | r = -CEPHFS_EXDEV; | |
2760 | goto out; | |
2761 | } | |
2762 | ||
9f95a23c TL |
2763 | finisher->queue( |
2764 | new LambdaContext( | |
2765 | [this, on_finish, f](int r) { | |
2766 | command_scrub_abort( | |
2767 | f, | |
2768 | new LambdaContext( | |
2769 | [on_finish, f](int r) { | |
2770 | bufferlist outbl; | |
2771 | f->open_object_section("result"); | |
2772 | f->dump_int("return_code", r); | |
2773 | f->close_section(); | |
2774 | on_finish(r, {}, outbl); | |
2775 | })); | |
2776 | })); | |
2777 | return; | |
2778 | } else if (command == "scrub pause") { | |
f67539c2 TL |
2779 | if (whoami != 0) { |
2780 | *css << "Not rank 0"; | |
2781 | r = -CEPHFS_EXDEV; | |
2782 | goto out; | |
2783 | } | |
2784 | ||
9f95a23c TL |
2785 | finisher->queue( |
2786 | new LambdaContext( | |
2787 | [this, on_finish, f](int r) { | |
2788 | command_scrub_pause( | |
2789 | f, | |
2790 | new LambdaContext( | |
2791 | [on_finish, f](int r) { | |
2792 | bufferlist outbl; | |
2793 | f->open_object_section("result"); | |
2794 | f->dump_int("return_code", r); | |
2795 | f->close_section(); | |
2796 | on_finish(r, {}, outbl); | |
2797 | })); | |
2798 | })); | |
2799 | return; | |
2800 | } else if (command == "scrub resume") { | |
f67539c2 TL |
2801 | if (whoami != 0) { |
2802 | *css << "Not rank 0"; | |
2803 | r = -CEPHFS_EXDEV; | |
2804 | goto out; | |
2805 | } | |
9f95a23c TL |
2806 | command_scrub_resume(f); |
2807 | } else if (command == "scrub status") { | |
2808 | command_scrub_status(f); | |
7c673cae | 2809 | } else if (command == "tag path") { |
f67539c2 TL |
2810 | if (whoami != 0) { |
2811 | *css << "Not rank 0"; | |
2812 | r = -CEPHFS_EXDEV; | |
2813 | goto out; | |
2814 | } | |
7c673cae | 2815 | string path; |
9f95a23c | 2816 | cmd_getval(cmdmap, "path", path); |
7c673cae | 2817 | string tag; |
9f95a23c | 2818 | cmd_getval(cmdmap, "tag", tag); |
7c673cae FG |
2819 | command_tag_path(f, path, tag); |
2820 | } else if (command == "flush_path") { | |
2821 | string path; | |
9f95a23c | 2822 | cmd_getval(cmdmap, "path", path); |
7c673cae FG |
2823 | command_flush_path(f, path); |
2824 | } else if (command == "flush journal") { | |
2825 | command_flush_journal(f); | |
2826 | } else if (command == "get subtrees") { | |
2827 | command_get_subtrees(f); | |
2828 | } else if (command == "export dir") { | |
2829 | string path; | |
9f95a23c | 2830 | if(!cmd_getval(cmdmap, "path", path)) { |
f67539c2 TL |
2831 | *css << "malformed path"; |
2832 | r = -CEPHFS_EINVAL; | |
9f95a23c | 2833 | goto out; |
7c673cae FG |
2834 | } |
2835 | int64_t rank; | |
9f95a23c | 2836 | if(!cmd_getval(cmdmap, "rank", rank)) { |
f67539c2 TL |
2837 | *css << "malformed rank"; |
2838 | r = -CEPHFS_EINVAL; | |
9f95a23c | 2839 | goto out; |
7c673cae FG |
2840 | } |
2841 | command_export_dir(f, path, (mds_rank_t)rank); | |
2842 | } else if (command == "dump cache") { | |
11fdf7f2 | 2843 | std::lock_guard l(mds_lock); |
20effc67 TL |
2844 | int64_t timeout = 0; |
2845 | cmd_getval(cmdmap, "timeout", timeout); | |
2846 | auto mds_beacon_interval = g_conf().get_val<double>("mds_beacon_interval"); | |
2847 | if (timeout <= 0) | |
2848 | timeout = mds_beacon_interval / 2; | |
2849 | else if (timeout > mds_beacon_interval) | |
2850 | timeout = mds_beacon_interval; | |
7c673cae | 2851 | string path; |
9f95a23c | 2852 | if (!cmd_getval(cmdmap, "path", path)) { |
20effc67 | 2853 | r = mdcache->dump_cache(f, timeout); |
7c673cae | 2854 | } else { |
20effc67 | 2855 | r = mdcache->dump_cache(path, timeout); |
31f18b77 | 2856 | } |
9f95a23c TL |
2857 | } else if (command == "cache drop") { |
2858 | int64_t timeout = 0; | |
2859 | cmd_getval(cmdmap, "timeout", timeout); | |
2860 | finisher->queue( | |
2861 | new LambdaContext( | |
2862 | [this, on_finish, f, timeout](int r) { | |
2863 | command_cache_drop( | |
2864 | timeout, f, | |
2865 | new LambdaContext( | |
2866 | [on_finish](int r) { | |
2867 | bufferlist outbl; | |
2868 | on_finish(r, {}, outbl); | |
2869 | })); | |
2870 | })); | |
2871 | return; | |
181888fb | 2872 | } else if (command == "cache status") { |
11fdf7f2 | 2873 | std::lock_guard l(mds_lock); |
f64942e4 | 2874 | mdcache->cache_status(f); |
7c673cae | 2875 | } else if (command == "dump tree") { |
f67539c2 | 2876 | command_dump_tree(cmdmap, *css, f); |
28e407b8 | 2877 | } else if (command == "dump loads") { |
11fdf7f2 | 2878 | std::lock_guard l(mds_lock); |
1e59de90 TL |
2879 | int64_t depth = -1; |
2880 | bool got = cmd_getval(cmdmap, "depth", depth); | |
2881 | if (!got || depth < 0) { | |
2882 | dout(10) << "no depth limit when dirfrags dump_load" << dendl; | |
2883 | } | |
2884 | r = balancer->dump_loads(f, depth); | |
11fdf7f2 TL |
2885 | } else if (command == "dump snaps") { |
2886 | std::lock_guard l(mds_lock); | |
2887 | string server; | |
9f95a23c | 2888 | cmd_getval(cmdmap, "server", server); |
11fdf7f2 TL |
2889 | if (server == "--server") { |
2890 | if (mdsmap->get_tableserver() == whoami) { | |
2891 | snapserver->dump(f); | |
2892 | } else { | |
f67539c2 TL |
2893 | r = -CEPHFS_EXDEV; |
2894 | *css << "Not snapserver"; | |
11fdf7f2 TL |
2895 | } |
2896 | } else { | |
9f95a23c | 2897 | r = snapclient->dump_cache(f); |
11fdf7f2 | 2898 | } |
7c673cae | 2899 | } else if (command == "force_readonly") { |
11fdf7f2 | 2900 | std::lock_guard l(mds_lock); |
7c673cae FG |
2901 | mdcache->force_readonly(); |
2902 | } else if (command == "dirfrag split") { | |
f67539c2 | 2903 | command_dirfrag_split(cmdmap, *css); |
7c673cae | 2904 | } else if (command == "dirfrag merge") { |
f67539c2 | 2905 | command_dirfrag_merge(cmdmap, *css); |
7c673cae | 2906 | } else if (command == "dirfrag ls") { |
f67539c2 | 2907 | command_dirfrag_ls(cmdmap, *css, f); |
11fdf7f2 TL |
2908 | } else if (command == "openfiles ls") { |
2909 | command_openfiles_ls(f); | |
2910 | } else if (command == "dump inode") { | |
f67539c2 | 2911 | command_dump_inode(f, cmdmap, *css); |
9f95a23c TL |
2912 | } else if (command == "damage ls") { |
2913 | std::lock_guard l(mds_lock); | |
2914 | damage_table.dump(f); | |
2915 | } else if (command == "damage rm") { | |
2916 | std::lock_guard l(mds_lock); | |
2917 | damage_entry_id_t id = 0; | |
2918 | if (!cmd_getval(cmdmap, "damage_id", (int64_t&)id)) { | |
f67539c2 | 2919 | r = -CEPHFS_EINVAL; |
9f95a23c TL |
2920 | goto out; |
2921 | } | |
2922 | damage_table.erase(id); | |
7c673cae | 2923 | } else { |
f67539c2 | 2924 | r = -CEPHFS_ENOSYS; |
7c673cae | 2925 | } |
9f95a23c | 2926 | out: |
f67539c2 | 2927 | on_finish(r, css->str(), outbl); |
7c673cae FG |
2928 | } |
2929 | ||
7c673cae FG |
2930 | /** |
2931 | * This function drops the mds_lock, so don't do anything with | |
2932 | * MDSRank after calling it (we could have gone into shutdown): just | |
2933 | * send your result back to the calling client and finish. | |
2934 | */ | |
9f95a23c TL |
2935 | void MDSRankDispatcher::evict_clients( |
2936 | const SessionFilter &filter, | |
2937 | std::function<void(int,const std::string&,bufferlist&)> on_finish) | |
7c673cae | 2938 | { |
9f95a23c | 2939 | bufferlist outbl; |
7c673cae | 2940 | if (is_any_replay()) { |
f67539c2 | 2941 | on_finish(-CEPHFS_EAGAIN, "MDS is replaying log", outbl); |
7c673cae FG |
2942 | return; |
2943 | } | |
2944 | ||
11fdf7f2 TL |
2945 | std::vector<Session*> victims; |
2946 | const auto& sessions = sessionmap.get_sessions(); | |
2947 | for (const auto& p : sessions) { | |
7c673cae FG |
2948 | if (!p.first.is_client()) { |
2949 | continue; | |
2950 | } | |
2951 | ||
2952 | Session *s = p.second; | |
2953 | ||
9f95a23c TL |
2954 | if (filter.match(*s, std::bind(&Server::waiting_for_reconnect, server, |
2955 | std::placeholders::_1))) { | |
7c673cae FG |
2956 | victims.push_back(s); |
2957 | } | |
2958 | } | |
2959 | ||
2960 | dout(20) << __func__ << " matched " << victims.size() << " sessions" << dendl; | |
2961 | ||
2962 | if (victims.empty()) { | |
9f95a23c | 2963 | on_finish(0, {}, outbl); |
7c673cae FG |
2964 | return; |
2965 | } | |
2966 | ||
9f95a23c TL |
2967 | C_GatherBuilder gather(g_ceph_context, |
2968 | new LambdaContext([on_finish](int r) { | |
2969 | bufferlist bl; | |
2970 | on_finish(r, {}, bl); | |
2971 | })); | |
7c673cae | 2972 | for (const auto s : victims) { |
f67539c2 | 2973 | CachedStackStringStream css; |
11fdf7f2 | 2974 | evict_client(s->get_client().v, false, |
f67539c2 | 2975 | g_conf()->mds_session_blocklist_on_evict, *css, gather.new_sub()); |
7c673cae FG |
2976 | } |
2977 | gather.activate(); | |
2978 | } | |
2979 | ||
adb31ebb | 2980 | void MDSRankDispatcher::dump_sessions(const SessionFilter &filter, Formatter *f, bool cap_dump) const |
7c673cae FG |
2981 | { |
2982 | // Dump sessions, decorated with recovery/replay status | |
2983 | f->open_array_section("sessions"); | |
92f5a8d4 TL |
2984 | for (auto& [name, s] : sessionmap.get_sessions()) { |
2985 | if (!name.is_client()) { | |
7c673cae FG |
2986 | continue; |
2987 | } | |
2988 | ||
7c673cae FG |
2989 | if (!filter.match(*s, std::bind(&Server::waiting_for_reconnect, server, std::placeholders::_1))) { |
2990 | continue; | |
2991 | } | |
2992 | ||
adb31ebb TL |
2993 | f->open_object_section("session"); |
2994 | s->dump(f, cap_dump); | |
2995 | f->close_section(); | |
7c673cae | 2996 | } |
92f5a8d4 | 2997 | f->close_section(); // sessions |
7c673cae FG |
2998 | } |
2999 | ||
11fdf7f2 TL |
3000 | void MDSRank::command_scrub_start(Formatter *f, |
3001 | std::string_view path, std::string_view tag, | |
3002 | const vector<string>& scrubop_vec, Context *on_finish) | |
7c673cae FG |
3003 | { |
3004 | bool force = false; | |
3005 | bool recursive = false; | |
3006 | bool repair = false; | |
aee94f69 | 3007 | bool scrub_mdsdir = false; |
11fdf7f2 TL |
3008 | for (auto &op : scrubop_vec) { |
3009 | if (op == "force") | |
7c673cae | 3010 | force = true; |
11fdf7f2 | 3011 | else if (op == "recursive") |
7c673cae | 3012 | recursive = true; |
11fdf7f2 | 3013 | else if (op == "repair") |
7c673cae | 3014 | repair = true; |
aee94f69 TL |
3015 | else if (op == "scrub_mdsdir" && path == "/") |
3016 | scrub_mdsdir = true; | |
7c673cae | 3017 | } |
11fdf7f2 TL |
3018 | |
3019 | std::lock_guard l(mds_lock); | |
aee94f69 TL |
3020 | mdcache->enqueue_scrub(path, tag, force, recursive, repair, scrub_mdsdir, |
3021 | f, on_finish); | |
7c673cae FG |
3022 | // scrub_dentry() finishers will dump the data for us; we're done! |
3023 | } | |
3024 | ||
3025 | void MDSRank::command_tag_path(Formatter *f, | |
11fdf7f2 | 3026 | std::string_view path, std::string_view tag) |
7c673cae FG |
3027 | { |
3028 | C_SaferCond scond; | |
3029 | { | |
11fdf7f2 | 3030 | std::lock_guard l(mds_lock); |
aee94f69 | 3031 | mdcache->enqueue_scrub(path, tag, true, true, false, false, f, &scond); |
7c673cae FG |
3032 | } |
3033 | scond.wait(); | |
3034 | } | |
3035 | ||
11fdf7f2 TL |
3036 | void MDSRank::command_scrub_abort(Formatter *f, Context *on_finish) { |
3037 | std::lock_guard l(mds_lock); | |
3038 | scrubstack->scrub_abort(on_finish); | |
3039 | } | |
3040 | ||
3041 | void MDSRank::command_scrub_pause(Formatter *f, Context *on_finish) { | |
3042 | std::lock_guard l(mds_lock); | |
3043 | scrubstack->scrub_pause(on_finish); | |
3044 | } | |
3045 | ||
3046 | void MDSRank::command_scrub_resume(Formatter *f) { | |
9f95a23c | 3047 | std::lock_guard l(mds_lock); |
11fdf7f2 TL |
3048 | int r = scrubstack->scrub_resume(); |
3049 | ||
3050 | f->open_object_section("result"); | |
3051 | f->dump_int("return_code", r); | |
3052 | f->close_section(); | |
3053 | } | |
3054 | ||
3055 | void MDSRank::command_scrub_status(Formatter *f) { | |
9f95a23c | 3056 | std::lock_guard l(mds_lock); |
11fdf7f2 TL |
3057 | scrubstack->scrub_status(f); |
3058 | } | |
3059 | ||
3060 | void MDSRank::command_flush_path(Formatter *f, std::string_view path) | |
7c673cae FG |
3061 | { |
3062 | C_SaferCond scond; | |
3063 | { | |
11fdf7f2 | 3064 | std::lock_guard l(mds_lock); |
7c673cae FG |
3065 | mdcache->flush_dentry(path, &scond); |
3066 | } | |
3067 | int r = scond.wait(); | |
3068 | f->open_object_section("results"); | |
3069 | f->dump_int("return_code", r); | |
3070 | f->close_section(); // results | |
3071 | } | |
3072 | ||
f64942e4 AA |
3073 | // synchronous wrapper around "journal flush" asynchronous context |
3074 | // execution. | |
3075 | void MDSRank::command_flush_journal(Formatter *f) { | |
3076 | ceph_assert(f != NULL); | |
7c673cae | 3077 | |
f64942e4 | 3078 | C_SaferCond cond; |
f67539c2 | 3079 | CachedStackStringStream css; |
7c673cae | 3080 | { |
11fdf7f2 | 3081 | std::lock_guard locker(mds_lock); |
f67539c2 | 3082 | C_Flush_Journal *flush_journal = new C_Flush_Journal(mdcache, mdlog, this, css.get(), &cond); |
f64942e4 | 3083 | flush_journal->send(); |
7c673cae | 3084 | } |
f64942e4 | 3085 | int r = cond.wait(); |
7c673cae | 3086 | |
f64942e4 | 3087 | f->open_object_section("result"); |
f67539c2 | 3088 | f->dump_string("message", css->strv()); |
f64942e4 AA |
3089 | f->dump_int("return_code", r); |
3090 | f->close_section(); | |
7c673cae FG |
3091 | } |
3092 | ||
7c673cae FG |
3093 | void MDSRank::command_get_subtrees(Formatter *f) |
3094 | { | |
11fdf7f2 TL |
3095 | ceph_assert(f != NULL); |
3096 | std::lock_guard l(mds_lock); | |
7c673cae | 3097 | |
11fdf7f2 TL |
3098 | std::vector<CDir*> subtrees; |
3099 | mdcache->get_subtrees(subtrees); | |
7c673cae FG |
3100 | |
3101 | f->open_array_section("subtrees"); | |
11fdf7f2 | 3102 | for (const auto& dir : subtrees) { |
7c673cae FG |
3103 | f->open_object_section("subtree"); |
3104 | { | |
3105 | f->dump_bool("is_auth", dir->is_auth()); | |
3106 | f->dump_int("auth_first", dir->get_dir_auth().first); | |
f67539c2 TL |
3107 | f->dump_int("auth_second", dir->get_dir_auth().second); { |
3108 | mds_rank_t export_pin = dir->inode->get_export_pin(false); | |
3109 | f->dump_int("export_pin", export_pin >= 0 ? export_pin : -1); | |
3110 | f->dump_bool("distributed_ephemeral_pin", export_pin == MDS_RANK_EPHEMERAL_DIST); | |
3111 | f->dump_bool("random_ephemeral_pin", export_pin == MDS_RANK_EPHEMERAL_RAND); | |
3112 | } | |
3113 | f->dump_int("export_pin_target", dir->get_export_pin(false)); | |
7c673cae FG |
3114 | f->open_object_section("dir"); |
3115 | dir->dump(f); | |
3116 | f->close_section(); | |
3117 | } | |
3118 | f->close_section(); | |
3119 | } | |
3120 | f->close_section(); | |
3121 | } | |
3122 | ||
3123 | ||
3124 | void MDSRank::command_export_dir(Formatter *f, | |
11fdf7f2 | 3125 | std::string_view path, |
7c673cae FG |
3126 | mds_rank_t target) |
3127 | { | |
3128 | int r = _command_export_dir(path, target); | |
3129 | f->open_object_section("results"); | |
3130 | f->dump_int("return_code", r); | |
3131 | f->close_section(); // results | |
3132 | } | |
3133 | ||
3134 | int MDSRank::_command_export_dir( | |
11fdf7f2 | 3135 | std::string_view path, |
7c673cae FG |
3136 | mds_rank_t target) |
3137 | { | |
11fdf7f2 | 3138 | std::lock_guard l(mds_lock); |
94b18763 | 3139 | filepath fp(path); |
7c673cae FG |
3140 | |
3141 | if (target == whoami || !mdsmap->is_up(target) || !mdsmap->is_in(target)) { | |
3142 | derr << "bad MDS target " << target << dendl; | |
f67539c2 | 3143 | return -CEPHFS_ENOENT; |
7c673cae FG |
3144 | } |
3145 | ||
3146 | CInode *in = mdcache->cache_traverse(fp); | |
3147 | if (!in) { | |
20effc67 | 3148 | derr << "bad path '" << path << "'" << dendl; |
f67539c2 | 3149 | return -CEPHFS_ENOENT; |
7c673cae FG |
3150 | } |
3151 | CDir *dir = in->get_dirfrag(frag_t()); | |
3152 | if (!dir || !(dir->is_auth())) { | |
3153 | derr << "bad export_dir path dirfrag frag_t() or dir not auth" << dendl; | |
f67539c2 | 3154 | return -CEPHFS_EINVAL; |
7c673cae FG |
3155 | } |
3156 | ||
3157 | mdcache->migrator->export_dir(dir, target); | |
3158 | return 0; | |
3159 | } | |
3160 | ||
11fdf7f2 TL |
3161 | void MDSRank::command_dump_tree(const cmdmap_t &cmdmap, std::ostream &ss, Formatter *f) |
3162 | { | |
3163 | std::string root; | |
3164 | int64_t depth; | |
9f95a23c | 3165 | cmd_getval(cmdmap, "root", root); |
20effc67 TL |
3166 | if (root.empty()) { |
3167 | root = "/"; | |
3168 | } | |
9f95a23c | 3169 | if (!cmd_getval(cmdmap, "depth", depth)) |
11fdf7f2 TL |
3170 | depth = -1; |
3171 | std::lock_guard l(mds_lock); | |
3172 | CInode *in = mdcache->cache_traverse(filepath(root.c_str())); | |
3173 | if (!in) { | |
3174 | ss << "root inode is not in cache"; | |
3175 | return; | |
3176 | } | |
3177 | f->open_array_section("inodes"); | |
3178 | mdcache->dump_tree(in, 0, depth, f); | |
3179 | f->close_section(); | |
3180 | } | |
3181 | ||
7c673cae FG |
3182 | CDir *MDSRank::_command_dirfrag_get( |
3183 | const cmdmap_t &cmdmap, | |
3184 | std::ostream &ss) | |
3185 | { | |
3186 | std::string path; | |
9f95a23c | 3187 | bool got = cmd_getval(cmdmap, "path", path); |
7c673cae FG |
3188 | if (!got) { |
3189 | ss << "missing path argument"; | |
3190 | return NULL; | |
3191 | } | |
3192 | ||
3193 | std::string frag_str; | |
9f95a23c | 3194 | if (!cmd_getval(cmdmap, "frag", frag_str)) { |
7c673cae FG |
3195 | ss << "missing frag argument"; |
3196 | return NULL; | |
3197 | } | |
3198 | ||
3199 | CInode *in = mdcache->cache_traverse(filepath(path.c_str())); | |
3200 | if (!in) { | |
3201 | // TODO really we should load something in if it's not in cache, | |
3202 | // but the infrastructure is harder, and we might still be unable | |
3203 | // to act on it if someone else is auth. | |
3204 | ss << "directory '" << path << "' inode not in cache"; | |
3205 | return NULL; | |
3206 | } | |
3207 | ||
3208 | frag_t fg; | |
3209 | ||
3210 | if (!fg.parse(frag_str.c_str())) { | |
3211 | ss << "frag " << frag_str << " failed to parse"; | |
3212 | return NULL; | |
3213 | } | |
3214 | ||
3215 | CDir *dir = in->get_dirfrag(fg); | |
3216 | if (!dir) { | |
11fdf7f2 | 3217 | ss << "frag " << in->ino() << "/" << fg << " not in cache (" |
7c673cae FG |
3218 | "use `dirfrag ls` to see if it should exist)"; |
3219 | return NULL; | |
3220 | } | |
3221 | ||
3222 | if (!dir->is_auth()) { | |
3223 | ss << "frag " << dir->dirfrag() << " not auth (auth = " | |
3224 | << dir->authority() << ")"; | |
3225 | return NULL; | |
3226 | } | |
3227 | ||
3228 | return dir; | |
3229 | } | |
3230 | ||
3231 | bool MDSRank::command_dirfrag_split( | |
3232 | cmdmap_t cmdmap, | |
3233 | std::ostream &ss) | |
3234 | { | |
11fdf7f2 | 3235 | std::lock_guard l(mds_lock); |
7c673cae | 3236 | int64_t by = 0; |
9f95a23c | 3237 | if (!cmd_getval(cmdmap, "bits", by)) { |
7c673cae FG |
3238 | ss << "missing bits argument"; |
3239 | return false; | |
3240 | } | |
3241 | ||
3242 | if (by <= 0) { | |
3243 | ss << "must split by >0 bits"; | |
3244 | return false; | |
3245 | } | |
3246 | ||
3247 | CDir *dir = _command_dirfrag_get(cmdmap, ss); | |
3248 | if (!dir) { | |
3249 | return false; | |
3250 | } | |
3251 | ||
3252 | mdcache->split_dir(dir, by); | |
3253 | ||
3254 | return true; | |
3255 | } | |
3256 | ||
3257 | bool MDSRank::command_dirfrag_merge( | |
3258 | cmdmap_t cmdmap, | |
3259 | std::ostream &ss) | |
3260 | { | |
11fdf7f2 | 3261 | std::lock_guard l(mds_lock); |
7c673cae | 3262 | std::string path; |
9f95a23c | 3263 | bool got = cmd_getval(cmdmap, "path", path); |
7c673cae FG |
3264 | if (!got) { |
3265 | ss << "missing path argument"; | |
3266 | return false; | |
3267 | } | |
3268 | ||
3269 | std::string frag_str; | |
9f95a23c | 3270 | if (!cmd_getval(cmdmap, "frag", frag_str)) { |
7c673cae FG |
3271 | ss << "missing frag argument"; |
3272 | return false; | |
3273 | } | |
3274 | ||
3275 | CInode *in = mdcache->cache_traverse(filepath(path.c_str())); | |
3276 | if (!in) { | |
3277 | ss << "directory '" << path << "' inode not in cache"; | |
3278 | return false; | |
3279 | } | |
3280 | ||
3281 | frag_t fg; | |
3282 | if (!fg.parse(frag_str.c_str())) { | |
3283 | ss << "frag " << frag_str << " failed to parse"; | |
3284 | return false; | |
3285 | } | |
3286 | ||
3287 | mdcache->merge_dir(in, fg); | |
3288 | ||
3289 | return true; | |
3290 | } | |
3291 | ||
3292 | bool MDSRank::command_dirfrag_ls( | |
3293 | cmdmap_t cmdmap, | |
3294 | std::ostream &ss, | |
3295 | Formatter *f) | |
3296 | { | |
11fdf7f2 | 3297 | std::lock_guard l(mds_lock); |
7c673cae | 3298 | std::string path; |
9f95a23c | 3299 | bool got = cmd_getval(cmdmap, "path", path); |
7c673cae FG |
3300 | if (!got) { |
3301 | ss << "missing path argument"; | |
3302 | return false; | |
3303 | } | |
3304 | ||
3305 | CInode *in = mdcache->cache_traverse(filepath(path.c_str())); | |
3306 | if (!in) { | |
3307 | ss << "directory inode not in cache"; | |
3308 | return false; | |
3309 | } | |
3310 | ||
3311 | f->open_array_section("frags"); | |
11fdf7f2 | 3312 | frag_vec_t leaves; |
7c673cae FG |
3313 | // NB using get_leaves_under instead of get_dirfrags to give |
3314 | // you the list of what dirfrags may exist, not which are in cache | |
11fdf7f2 TL |
3315 | in->dirfragtree.get_leaves_under(frag_t(), leaves); |
3316 | for (const auto& leaf : leaves) { | |
7c673cae | 3317 | f->open_object_section("frag"); |
11fdf7f2 TL |
3318 | f->dump_int("value", leaf.value()); |
3319 | f->dump_int("bits", leaf.bits()); | |
3320 | CachedStackStringStream css; | |
3321 | *css << std::hex << leaf.value() << "/" << std::dec << leaf.bits(); | |
3322 | f->dump_string("str", css->strv()); | |
7c673cae FG |
3323 | f->close_section(); |
3324 | } | |
3325 | f->close_section(); | |
3326 | ||
3327 | return true; | |
3328 | } | |
3329 | ||
11fdf7f2 TL |
3330 | void MDSRank::command_openfiles_ls(Formatter *f) |
3331 | { | |
3332 | std::lock_guard l(mds_lock); | |
3333 | mdcache->dump_openfiles(f); | |
3334 | } | |
3335 | ||
3336 | void MDSRank::command_dump_inode(Formatter *f, const cmdmap_t &cmdmap, std::ostream &ss) | |
3337 | { | |
3338 | std::lock_guard l(mds_lock); | |
3339 | int64_t number; | |
9f95a23c | 3340 | bool got = cmd_getval(cmdmap, "number", number); |
11fdf7f2 TL |
3341 | if (!got) { |
3342 | ss << "missing inode number"; | |
3343 | return; | |
3344 | } | |
3345 | ||
3346 | bool success = mdcache->dump_inode(f, number); | |
3347 | if (!success) { | |
3348 | ss << "dump inode failed, wrong inode number or the inode is not cached"; | |
3349 | } | |
3350 | } | |
3351 | ||
7c673cae FG |
3352 | void MDSRank::dump_status(Formatter *f) const |
3353 | { | |
20effc67 | 3354 | f->dump_string("fs_name", std::string(mdsmap->get_fs_name())); |
7c673cae FG |
3355 | if (state == MDSMap::STATE_REPLAY || |
3356 | state == MDSMap::STATE_STANDBY_REPLAY) { | |
3357 | mdlog->dump_replay_status(f); | |
3358 | } else if (state == MDSMap::STATE_RESOLVE) { | |
3359 | mdcache->dump_resolve_status(f); | |
3360 | } else if (state == MDSMap::STATE_RECONNECT) { | |
3361 | server->dump_reconnect_status(f); | |
3362 | } else if (state == MDSMap::STATE_REJOIN) { | |
3363 | mdcache->dump_rejoin_status(f); | |
3364 | } else if (state == MDSMap::STATE_CLIENTREPLAY) { | |
3365 | dump_clientreplay_status(f); | |
3366 | } | |
94b18763 | 3367 | f->dump_float("rank_uptime", get_uptime().count()); |
7c673cae FG |
3368 | } |
3369 | ||
3370 | void MDSRank::dump_clientreplay_status(Formatter *f) const | |
3371 | { | |
3372 | f->open_object_section("clientreplay_status"); | |
3373 | f->dump_unsigned("clientreplay_queue", replay_queue.size()); | |
3374 | f->dump_unsigned("active_replay", mdcache->get_num_client_requests()); | |
3375 | f->close_section(); | |
3376 | } | |
3377 | ||
3378 | void MDSRankDispatcher::update_log_config() | |
3379 | { | |
20effc67 TL |
3380 | auto parsed_options = clog->parse_client_options(g_ceph_context); |
3381 | dout(10) << __func__ << " log_to_monitors " << parsed_options.log_to_monitors << dendl; | |
7c673cae FG |
3382 | } |
3383 | ||
3384 | void MDSRank::create_logger() | |
3385 | { | |
3386 | dout(10) << "create_logger" << dendl; | |
3387 | { | |
3388 | PerfCountersBuilder mds_plb(g_ceph_context, "mds", l_mds_first, l_mds_last); | |
3389 | ||
91327a77 AA |
3390 | // super useful (high prio) perf stats |
3391 | mds_plb.add_u64_counter(l_mds_request, "request", "Requests", "req", | |
3392 | PerfCountersBuilder::PRIO_CRITICAL); | |
3393 | mds_plb.add_time_avg(l_mds_reply_latency, "reply_latency", "Reply latency", "rlat", | |
3394 | PerfCountersBuilder::PRIO_CRITICAL); | |
3395 | mds_plb.add_u64(l_mds_inodes, "inodes", "Inodes", "inos", | |
3396 | PerfCountersBuilder::PRIO_CRITICAL); | |
3397 | mds_plb.add_u64_counter(l_mds_forward, "forward", "Forwarding request", "fwd", | |
3398 | PerfCountersBuilder::PRIO_INTERESTING); | |
3399 | mds_plb.add_u64(l_mds_caps, "caps", "Capabilities", "caps", | |
3400 | PerfCountersBuilder::PRIO_INTERESTING); | |
3401 | mds_plb.add_u64_counter(l_mds_exported_inodes, "exported_inodes", "Exported inodes", | |
3402 | "exi", PerfCountersBuilder::PRIO_INTERESTING); | |
3403 | mds_plb.add_u64_counter(l_mds_imported_inodes, "imported_inodes", "Imported inodes", | |
3404 | "imi", PerfCountersBuilder::PRIO_INTERESTING); | |
33c7a0ef TL |
3405 | mds_plb.add_u64_counter(l_mds_slow_reply, "slow_reply", "Slow replies", "slr", |
3406 | PerfCountersBuilder::PRIO_INTERESTING); | |
91327a77 | 3407 | |
f67539c2 TL |
3408 | // caps msg stats |
3409 | mds_plb.add_u64_counter(l_mdss_handle_client_caps, "handle_client_caps", | |
3410 | "Client caps msg", "hcc", PerfCountersBuilder::PRIO_INTERESTING); | |
3411 | mds_plb.add_u64_counter(l_mdss_handle_client_caps_dirty, "handle_client_caps_dirty", | |
3412 | "Client dirty caps msg", "hccd", PerfCountersBuilder::PRIO_INTERESTING); | |
3413 | mds_plb.add_u64_counter(l_mdss_handle_client_cap_release, "handle_client_cap_release", | |
3414 | "Client cap release msg", "hccr", PerfCountersBuilder::PRIO_INTERESTING); | |
3415 | mds_plb.add_u64_counter(l_mdss_process_request_cap_release, "process_request_cap_release", | |
3416 | "Process request cap release", "prcr", PerfCountersBuilder::PRIO_INTERESTING); | |
3417 | mds_plb.add_u64_counter(l_mdss_ceph_cap_op_revoke, "ceph_cap_op_revoke", | |
3418 | "Revoke caps", "crev", PerfCountersBuilder::PRIO_INTERESTING); | |
3419 | mds_plb.add_u64_counter(l_mdss_ceph_cap_op_grant, "ceph_cap_op_grant", | |
3420 | "Grant caps", "cgra", PerfCountersBuilder::PRIO_INTERESTING); | |
3421 | mds_plb.add_u64_counter(l_mdss_ceph_cap_op_trunc, "ceph_cap_op_trunc", | |
3422 | "caps truncate notify", "ctru", PerfCountersBuilder::PRIO_INTERESTING); | |
3423 | mds_plb.add_u64_counter(l_mdss_ceph_cap_op_flushsnap_ack, "ceph_cap_op_flushsnap_ack", | |
3424 | "caps truncate notify", "cfsa", PerfCountersBuilder::PRIO_INTERESTING); | |
3425 | mds_plb.add_u64_counter(l_mdss_ceph_cap_op_flush_ack, "ceph_cap_op_flush_ack", | |
3426 | "caps truncate notify", "cfa", PerfCountersBuilder::PRIO_INTERESTING); | |
3427 | mds_plb.add_u64_counter(l_mdss_handle_inode_file_caps, "handle_inode_file_caps", | |
3428 | "Inter mds caps msg", "hifc", PerfCountersBuilder::PRIO_INTERESTING); | |
3429 | ||
91327a77 AA |
3430 | // useful dir/inode/subtree stats |
3431 | mds_plb.set_prio_default(PerfCountersBuilder::PRIO_USEFUL); | |
eafe8130 TL |
3432 | mds_plb.add_u64(l_mds_root_rfiles, "root_rfiles", "root inode rfiles"); |
3433 | mds_plb.add_u64(l_mds_root_rbytes, "root_rbytes", "root inode rbytes"); | |
3434 | mds_plb.add_u64(l_mds_root_rsnaps, "root_rsnaps", "root inode rsnaps"); | |
1e59de90 TL |
3435 | mds_plb.add_u64_counter(l_mds_dir_fetch_complete, |
3436 | "dir_fetch_complete", "Fetch complete dirfrag"); | |
3437 | mds_plb.add_u64_counter(l_mds_dir_fetch_keys, | |
3438 | "dir_fetch_keys", "Fetch keys from dirfrag"); | |
7c673cae FG |
3439 | mds_plb.add_u64_counter(l_mds_dir_commit, "dir_commit", "Directory commit"); |
3440 | mds_plb.add_u64_counter(l_mds_dir_split, "dir_split", "Directory split"); | |
3441 | mds_plb.add_u64_counter(l_mds_dir_merge, "dir_merge", "Directory merge"); | |
7c673cae FG |
3442 | mds_plb.add_u64(l_mds_inodes_pinned, "inodes_pinned", "Inodes pinned"); |
3443 | mds_plb.add_u64(l_mds_inodes_expired, "inodes_expired", "Inodes expired"); | |
91327a77 AA |
3444 | mds_plb.add_u64(l_mds_inodes_with_caps, "inodes_with_caps", |
3445 | "Inodes with capabilities"); | |
7c673cae | 3446 | mds_plb.add_u64(l_mds_subtrees, "subtrees", "Subtrees"); |
91327a77 | 3447 | mds_plb.add_u64(l_mds_load_cent, "load_cent", "Load per cent"); |
11fdf7f2 TL |
3448 | mds_plb.add_u64_counter(l_mds_openino_dir_fetch, "openino_dir_fetch", |
3449 | "OpenIno incomplete directory fetchings"); | |
7c673cae | 3450 | |
91327a77 AA |
3451 | // low prio stats |
3452 | mds_plb.set_prio_default(PerfCountersBuilder::PRIO_DEBUGONLY); | |
3453 | mds_plb.add_u64_counter(l_mds_reply, "reply", "Replies"); | |
3454 | mds_plb.add_u64(l_mds_inodes_top, "inodes_top", "Inodes on top"); | |
3455 | mds_plb.add_u64(l_mds_inodes_bottom, "inodes_bottom", "Inodes on bottom"); | |
3456 | mds_plb.add_u64( | |
3457 | l_mds_inodes_pin_tail, "inodes_pin_tail", "Inodes on pin tail"); | |
7c673cae FG |
3458 | mds_plb.add_u64_counter(l_mds_traverse, "traverse", "Traverses"); |
3459 | mds_plb.add_u64_counter(l_mds_traverse_hit, "traverse_hit", "Traverse hits"); | |
3460 | mds_plb.add_u64_counter(l_mds_traverse_forward, "traverse_forward", | |
91327a77 | 3461 | "Traverse forwards"); |
7c673cae | 3462 | mds_plb.add_u64_counter(l_mds_traverse_discover, "traverse_discover", |
91327a77 | 3463 | "Traverse directory discovers"); |
7c673cae | 3464 | mds_plb.add_u64_counter(l_mds_traverse_dir_fetch, "traverse_dir_fetch", |
91327a77 | 3465 | "Traverse incomplete directory content fetchings"); |
7c673cae | 3466 | mds_plb.add_u64_counter(l_mds_traverse_remote_ino, "traverse_remote_ino", |
91327a77 | 3467 | "Traverse remote dentries"); |
7c673cae | 3468 | mds_plb.add_u64_counter(l_mds_traverse_lock, "traverse_lock", |
91327a77 | 3469 | "Traverse locks"); |
7c673cae | 3470 | mds_plb.add_u64(l_mds_dispatch_queue_len, "q", "Dispatch queue length"); |
7c673cae | 3471 | mds_plb.add_u64_counter(l_mds_exported, "exported", "Exports"); |
7c673cae | 3472 | mds_plb.add_u64_counter(l_mds_imported, "imported", "Imports"); |
11fdf7f2 TL |
3473 | mds_plb.add_u64_counter(l_mds_openino_backtrace_fetch, "openino_backtrace_fetch", |
3474 | "OpenIno backtrace fetchings"); | |
3475 | mds_plb.add_u64_counter(l_mds_openino_peer_discover, "openino_peer_discover", | |
3476 | "OpenIno peer inode discovers"); | |
91327a77 | 3477 | |
f67539c2 TL |
3478 | // scrub stats |
3479 | mds_plb.add_u64(l_mds_scrub_backtrace_fetch, "scrub_backtrace_fetch", | |
3480 | "Scrub backtrace fetchings"); | |
3481 | mds_plb.add_u64(l_mds_scrub_set_tag, "scrub_set_tag", | |
3482 | "Scrub set tags"); | |
3483 | mds_plb.add_u64(l_mds_scrub_backtrace_repaired, "scrub_backtrace_repaired", | |
3484 | "Scrub backtraces repaired"); | |
3485 | mds_plb.add_u64(l_mds_scrub_inotable_repaired, "scrub_inotable_repaired", | |
3486 | "Scrub inotable repaired"); | |
3487 | mds_plb.add_u64(l_mds_scrub_dir_inodes, "scrub_dir_inodes", | |
3488 | "Scrub directory inodes"); | |
3489 | mds_plb.add_u64(l_mds_scrub_dir_base_inodes, "scrub_dir_base_inodes", | |
3490 | "Scrub directory base inodes"); | |
3491 | mds_plb.add_u64(l_mds_scrub_dirfrag_rstats, "scrub_dirfrag_rstats", | |
3492 | "Scrub dirfrags rstates"); | |
3493 | mds_plb.add_u64(l_mds_scrub_file_inodes, "scrub_file_inodes", | |
3494 | "Scrub file inodes"); | |
3495 | ||
7c673cae FG |
3496 | logger = mds_plb.create_perf_counters(); |
3497 | g_ceph_context->get_perfcounters_collection()->add(logger); | |
3498 | } | |
3499 | ||
3500 | { | |
3501 | PerfCountersBuilder mdm_plb(g_ceph_context, "mds_mem", l_mdm_first, l_mdm_last); | |
b32b8144 FG |
3502 | mdm_plb.add_u64(l_mdm_ino, "ino", "Inodes", "ino", |
3503 | PerfCountersBuilder::PRIO_INTERESTING); | |
91327a77 AA |
3504 | mdm_plb.add_u64(l_mdm_dn, "dn", "Dentries", "dn", |
3505 | PerfCountersBuilder::PRIO_INTERESTING); | |
3506 | ||
3507 | mdm_plb.set_prio_default(PerfCountersBuilder::PRIO_USEFUL); | |
7c673cae FG |
3508 | mdm_plb.add_u64_counter(l_mdm_inoa, "ino+", "Inodes opened"); |
3509 | mdm_plb.add_u64_counter(l_mdm_inos, "ino-", "Inodes closed"); | |
3510 | mdm_plb.add_u64(l_mdm_dir, "dir", "Directories"); | |
3511 | mdm_plb.add_u64_counter(l_mdm_dira, "dir+", "Directories opened"); | |
3512 | mdm_plb.add_u64_counter(l_mdm_dirs, "dir-", "Directories closed"); | |
7c673cae FG |
3513 | mdm_plb.add_u64_counter(l_mdm_dna, "dn+", "Dentries opened"); |
3514 | mdm_plb.add_u64_counter(l_mdm_dns, "dn-", "Dentries closed"); | |
3515 | mdm_plb.add_u64(l_mdm_cap, "cap", "Capabilities"); | |
3516 | mdm_plb.add_u64_counter(l_mdm_capa, "cap+", "Capabilities added"); | |
3517 | mdm_plb.add_u64_counter(l_mdm_caps, "cap-", "Capabilities removed"); | |
7c673cae | 3518 | mdm_plb.add_u64(l_mdm_heap, "heap", "Heap size"); |
91327a77 AA |
3519 | |
3520 | mdm_plb.set_prio_default(PerfCountersBuilder::PRIO_DEBUGONLY); | |
3521 | mdm_plb.add_u64(l_mdm_rss, "rss", "RSS"); | |
3522 | ||
7c673cae FG |
3523 | mlogger = mdm_plb.create_perf_counters(); |
3524 | g_ceph_context->get_perfcounters_collection()->add(mlogger); | |
3525 | } | |
3526 | ||
3527 | mdlog->create_logger(); | |
3528 | server->create_logger(); | |
3529 | purge_queue.create_logger(); | |
3530 | sessionmap.register_perfcounters(); | |
3531 | mdcache->register_perfcounters(); | |
3532 | } | |
3533 | ||
3534 | void MDSRank::check_ops_in_flight() | |
3535 | { | |
11fdf7f2 | 3536 | string summary; |
7c673cae FG |
3537 | vector<string> warnings; |
3538 | int slow = 0; | |
11fdf7f2 TL |
3539 | if (op_tracker.check_ops_in_flight(&summary, warnings, &slow)) { |
3540 | clog->warn() << summary; | |
3541 | for (const auto& warning : warnings) { | |
3542 | clog->warn() << warning; | |
7c673cae FG |
3543 | } |
3544 | } | |
3545 | ||
3546 | // set mds slow request count | |
3547 | mds_slow_req_count = slow; | |
3548 | return; | |
3549 | } | |
3550 | ||
3551 | void MDSRankDispatcher::handle_osd_map() | |
3552 | { | |
11fdf7f2 TL |
3553 | if (is_active() && |
3554 | mdsmap->get_tableserver() == whoami) { | |
7c673cae FG |
3555 | snapserver->check_osd_map(true); |
3556 | } | |
3557 | ||
3558 | server->handle_osd_map(); | |
3559 | ||
3560 | purge_queue.update_op_limit(*mdsmap); | |
3561 | ||
a4b75251 TL |
3562 | // it's ok if replay state is reached via standby-replay, the |
3563 | // reconnect state will journal blocklisted clients (journal | |
3564 | // is opened for writing in `replay_done` before moving to | |
3565 | // up:resolve). | |
2a845540 | 3566 | if (!is_any_replay()) { |
a4b75251 TL |
3567 | std::set<entity_addr_t> newly_blocklisted; |
3568 | objecter->consume_blocklist_events(&newly_blocklisted); | |
3569 | auto epoch = objecter->with_osdmap([](const OSDMap &o){return o.get_epoch();}); | |
3570 | apply_blocklist(newly_blocklisted, epoch); | |
31f18b77 FG |
3571 | } |
3572 | ||
7c673cae FG |
3573 | // By default the objecter only requests OSDMap updates on use, |
3574 | // we would like to always receive the latest maps in order to | |
3575 | // apply policy based on the FULL flag. | |
3576 | objecter->maybe_request_map(); | |
3577 | } | |
3578 | ||
92f5a8d4 TL |
3579 | int MDSRank::config_client(int64_t session_id, bool remove, |
3580 | const std::string& option, const std::string& value, | |
3581 | std::ostream& ss) | |
3582 | { | |
3583 | Session *session = sessionmap.get_session(entity_name_t(CEPH_ENTITY_TYPE_CLIENT, session_id)); | |
3584 | if (!session) { | |
3585 | ss << "session " << session_id << " not in sessionmap!"; | |
f67539c2 | 3586 | return -CEPHFS_ENOENT; |
92f5a8d4 TL |
3587 | } |
3588 | ||
3589 | if (option == "timeout") { | |
3590 | if (remove) { | |
3591 | auto it = session->info.client_metadata.find("timeout"); | |
3592 | if (it == session->info.client_metadata.end()) { | |
3593 | ss << "Nonexistent config: " << option; | |
f67539c2 | 3594 | return -CEPHFS_ENODATA; |
92f5a8d4 TL |
3595 | } |
3596 | session->info.client_metadata.erase(it); | |
3597 | } else { | |
3598 | char *end; | |
3599 | strtoul(value.c_str(), &end, 0); | |
3600 | if (*end) { | |
3601 | ss << "Invalid config for timeout: " << value; | |
f67539c2 | 3602 | return -CEPHFS_EINVAL; |
92f5a8d4 TL |
3603 | } |
3604 | session->info.client_metadata[option] = value; | |
3605 | } | |
3606 | //sessionmap._mark_dirty(session, true); | |
3607 | } else { | |
3608 | ss << "Invalid config option: " << option; | |
f67539c2 | 3609 | return -CEPHFS_EINVAL; |
92f5a8d4 TL |
3610 | } |
3611 | ||
3612 | return 0; | |
3613 | } | |
3614 | ||
31f18b77 | 3615 | bool MDSRank::evict_client(int64_t session_id, |
f67539c2 | 3616 | bool wait, bool blocklist, std::ostream& err_ss, |
31f18b77 | 3617 | Context *on_killed) |
7c673cae | 3618 | { |
9f95a23c | 3619 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
31f18b77 FG |
3620 | |
3621 | // Mutually exclusive args | |
11fdf7f2 | 3622 | ceph_assert(!(wait && on_killed != nullptr)); |
31f18b77 | 3623 | |
7c673cae FG |
3624 | if (is_any_replay()) { |
3625 | err_ss << "MDS is replaying log"; | |
3626 | return false; | |
3627 | } | |
3628 | ||
31f18b77 FG |
3629 | Session *session = sessionmap.get_session( |
3630 | entity_name_t(CEPH_ENTITY_TYPE_CLIENT, session_id)); | |
7c673cae FG |
3631 | if (!session) { |
3632 | err_ss << "session " << session_id << " not in sessionmap!"; | |
3633 | return false; | |
3634 | } | |
7c673cae | 3635 | |
a8e16298 TL |
3636 | auto& addr = session->info.inst.addr; |
3637 | { | |
11fdf7f2 | 3638 | CachedStackStringStream css; |
f67539c2 | 3639 | *css << "Evicting " << (blocklist ? "(and blocklisting) " : "") |
11fdf7f2 TL |
3640 | << "client session " << session_id << " (" << addr << ")"; |
3641 | dout(1) << css->strv() << dendl; | |
3642 | clog->info() << css->strv(); | |
a8e16298 TL |
3643 | } |
3644 | ||
f67539c2 TL |
3645 | dout(4) << "Preparing blocklist command... (wait=" << wait << ")" << dendl; |
3646 | CachedStackStringStream css; | |
3647 | *css << "{\"prefix\":\"osd blocklist\", \"blocklistop\":\"add\","; | |
3648 | *css << "\"addr\":\""; | |
3649 | *css << addr; | |
3650 | *css << "\"}"; | |
3651 | std::vector<std::string> cmd = {css->str()}; | |
31f18b77 | 3652 | |
91327a77 | 3653 | auto kill_client_session = [this, session_id, wait, on_killed](){ |
9f95a23c | 3654 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
31f18b77 FG |
3655 | Session *session = sessionmap.get_session( |
3656 | entity_name_t(CEPH_ENTITY_TYPE_CLIENT, session_id)); | |
3657 | if (session) { | |
91327a77 | 3658 | if (on_killed || !wait) { |
31f18b77 FG |
3659 | server->kill_session(session, on_killed); |
3660 | } else { | |
3661 | C_SaferCond on_safe; | |
3662 | server->kill_session(session, &on_safe); | |
3663 | ||
9f95a23c | 3664 | mds_lock.unlock(); |
31f18b77 | 3665 | on_safe.wait(); |
9f95a23c | 3666 | mds_lock.lock(); |
31f18b77 FG |
3667 | } |
3668 | } else { | |
3669 | dout(1) << "session " << session_id << " was removed while we waited " | |
f67539c2 | 3670 | "for blocklist" << dendl; |
31f18b77 FG |
3671 | |
3672 | // Even though it wasn't us that removed it, kick our completion | |
3673 | // as the session has been removed. | |
3674 | if (on_killed) { | |
3675 | on_killed->complete(0); | |
3676 | } | |
3677 | } | |
3678 | }; | |
3679 | ||
f67539c2 | 3680 | auto apply_blocklist = [this, cmd](std::function<void ()> fn){ |
9f95a23c | 3681 | ceph_assert(ceph_mutex_is_locked_by_me(mds_lock)); |
31f18b77 | 3682 | |
f67539c2 | 3683 | Context *on_blocklist_done = new LambdaContext([this, fn](int r) { |
31f18b77 | 3684 | objecter->wait_for_latest_osdmap( |
f67539c2 | 3685 | lambdafy((new C_OnFinisher( |
9f95a23c | 3686 | new LambdaContext([this, fn](int r) { |
11fdf7f2 | 3687 | std::lock_guard l(mds_lock); |
31f18b77 FG |
3688 | auto epoch = objecter->with_osdmap([](const OSDMap &o){ |
3689 | return o.get_epoch(); | |
3690 | }); | |
3691 | ||
3692 | set_osd_epoch_barrier(epoch); | |
3693 | ||
3694 | fn(); | |
3695 | }), finisher) | |
f67539c2 | 3696 | ))); |
31f18b77 FG |
3697 | }); |
3698 | ||
f67539c2 TL |
3699 | dout(4) << "Sending mon blocklist command: " << cmd[0] << dendl; |
3700 | monc->start_mon_command(cmd, {}, nullptr, nullptr, on_blocklist_done); | |
31f18b77 FG |
3701 | }; |
3702 | ||
31f18b77 | 3703 | if (wait) { |
f67539c2 | 3704 | if (blocklist) { |
91327a77 | 3705 | C_SaferCond inline_ctx; |
f67539c2 | 3706 | apply_blocklist([&inline_ctx](){inline_ctx.complete(0);}); |
9f95a23c | 3707 | mds_lock.unlock(); |
91327a77 | 3708 | inline_ctx.wait(); |
9f95a23c | 3709 | mds_lock.lock(); |
31f18b77 FG |
3710 | } |
3711 | ||
3712 | // We dropped mds_lock, so check that session still exists | |
3713 | session = sessionmap.get_session(entity_name_t(CEPH_ENTITY_TYPE_CLIENT, | |
11fdf7f2 | 3714 | session_id)); |
31f18b77 FG |
3715 | if (!session) { |
3716 | dout(1) << "session " << session_id << " was removed while we waited " | |
f67539c2 | 3717 | "for blocklist" << dendl; |
1e59de90 | 3718 | client_eviction_dump = true; |
31f18b77 FG |
3719 | return true; |
3720 | } | |
91327a77 | 3721 | kill_client_session(); |
7c673cae | 3722 | } else { |
f67539c2 TL |
3723 | if (blocklist) { |
3724 | apply_blocklist(kill_client_session); | |
31f18b77 | 3725 | } else { |
91327a77 | 3726 | kill_client_session(); |
31f18b77 | 3727 | } |
7c673cae | 3728 | } |
31f18b77 | 3729 | |
1e59de90 | 3730 | client_eviction_dump = true; |
7c673cae FG |
3731 | return true; |
3732 | } | |
3733 | ||
7c673cae FG |
3734 | MDSRankDispatcher::MDSRankDispatcher( |
3735 | mds_rank_t whoami_, | |
a4b75251 | 3736 | ceph::fair_mutex &mds_lock_, |
7c673cae | 3737 | LogChannelRef &clog_, |
a4b75251 | 3738 | CommonSafeTimer<ceph::fair_mutex> &timer_, |
7c673cae | 3739 | Beacon &beacon_, |
11fdf7f2 | 3740 | std::unique_ptr<MDSMap> &mdsmap_, |
7c673cae FG |
3741 | Messenger *msgr, |
3742 | MonClient *monc_, | |
9f95a23c | 3743 | MgrClient *mgrc, |
7c673cae | 3744 | Context *respawn_hook_, |
f67539c2 TL |
3745 | Context *suicide_hook_, |
3746 | boost::asio::io_context& ioc) | |
20effc67 | 3747 | : MDSRank(whoami_, mds_lock_, clog_, timer_, beacon_, mdsmap_, |
f67539c2 | 3748 | msgr, monc_, mgrc, respawn_hook_, suicide_hook_, ioc) |
92f5a8d4 | 3749 | { |
9f95a23c | 3750 | g_conf().add_observer(this); |
7c673cae FG |
3751 | } |
3752 | ||
f64942e4 AA |
3753 | void MDSRank::command_cache_drop(uint64_t timeout, Formatter *f, Context *on_finish) { |
3754 | dout(20) << __func__ << dendl; | |
3755 | ||
11fdf7f2 | 3756 | std::lock_guard locker(mds_lock); |
f64942e4 AA |
3757 | C_Drop_Cache *request = new C_Drop_Cache(server, mdcache, mdlog, this, |
3758 | timeout, f, on_finish); | |
3759 | request->send(); | |
3760 | } | |
3761 | ||
7c673cae FG |
3762 | epoch_t MDSRank::get_osd_epoch() const |
3763 | { | |
3764 | return objecter->with_osdmap(std::mem_fn(&OSDMap::get_epoch)); | |
3765 | } | |
3766 | ||
92f5a8d4 TL |
3767 | const char** MDSRankDispatcher::get_tracked_conf_keys() const |
3768 | { | |
3769 | static const char* KEYS[] = { | |
3770 | "clog_to_graylog", | |
3771 | "clog_to_graylog_host", | |
3772 | "clog_to_graylog_port", | |
3773 | "clog_to_monitors", | |
3774 | "clog_to_syslog", | |
3775 | "clog_to_syslog_facility", | |
3776 | "clog_to_syslog_level", | |
3777 | "fsid", | |
3778 | "host", | |
3779 | "mds_bal_fragment_dirs", | |
3780 | "mds_bal_fragment_interval", | |
20effc67 | 3781 | "mds_bal_fragment_size_max", |
92f5a8d4 TL |
3782 | "mds_cache_memory_limit", |
3783 | "mds_cache_mid", | |
3784 | "mds_cache_reservation", | |
92f5a8d4 TL |
3785 | "mds_cache_trim_decay_rate", |
3786 | "mds_cap_revoke_eviction_timeout", | |
3787 | "mds_dump_cache_threshold_file", | |
3788 | "mds_dump_cache_threshold_formatter", | |
3789 | "mds_enable_op_tracker", | |
f6b5b4d7 TL |
3790 | "mds_export_ephemeral_random", |
3791 | "mds_export_ephemeral_random_max", | |
3792 | "mds_export_ephemeral_distributed", | |
92f5a8d4 TL |
3793 | "mds_health_cache_threshold", |
3794 | "mds_inject_migrator_session_race", | |
3795 | "mds_log_pause", | |
3796 | "mds_max_export_size", | |
3797 | "mds_max_purge_files", | |
9f95a23c | 3798 | "mds_forward_all_requests_to_auth", |
92f5a8d4 TL |
3799 | "mds_max_purge_ops", |
3800 | "mds_max_purge_ops_per_pg", | |
9f95a23c | 3801 | "mds_max_snaps_per_dir", |
92f5a8d4 TL |
3802 | "mds_op_complaint_time", |
3803 | "mds_op_history_duration", | |
3804 | "mds_op_history_size", | |
3805 | "mds_op_log_threshold", | |
3806 | "mds_recall_max_decay_rate", | |
3807 | "mds_recall_warning_decay_rate", | |
3808 | "mds_request_load_average_decay_rate", | |
3809 | "mds_session_cache_liveness_decay_rate", | |
33c7a0ef | 3810 | "mds_heartbeat_reset_grace", |
f67539c2 | 3811 | "mds_heartbeat_grace", |
adb31ebb TL |
3812 | "mds_session_cap_acquisition_decay_rate", |
3813 | "mds_max_caps_per_client", | |
3814 | "mds_session_cap_acquisition_throttle", | |
3815 | "mds_session_max_caps_throttle_ratio", | |
3816 | "mds_cap_acquisition_throttle_retry_request_time", | |
f67539c2 | 3817 | "mds_alternate_name_max", |
20effc67 TL |
3818 | "mds_dir_max_entries", |
3819 | "mds_symlink_recovery", | |
1e59de90 TL |
3820 | "mds_extraordinary_events_dump_interval", |
3821 | "mds_inject_rename_corrupt_dentry_first", | |
3822 | "mds_inject_journal_corrupt_dentry_first", | |
aee94f69 | 3823 | "mds_session_metadata_threshold", |
92f5a8d4 TL |
3824 | NULL |
3825 | }; | |
3826 | return KEYS; | |
3827 | } | |
3828 | ||
3829 | void MDSRankDispatcher::handle_conf_change(const ConfigProxy& conf, const std::set<std::string>& changed) | |
3830 | { | |
3831 | // XXX with or without mds_lock! | |
3832 | ||
33c7a0ef TL |
3833 | if (changed.count("mds_heartbeat_reset_grace")) { |
3834 | _heartbeat_reset_grace = conf.get_val<uint64_t>("mds_heartbeat_reset_grace"); | |
3835 | } | |
f67539c2 TL |
3836 | if (changed.count("mds_heartbeat_grace")) { |
3837 | heartbeat_grace = conf.get_val<double>("mds_heartbeat_grace"); | |
3838 | } | |
92f5a8d4 TL |
3839 | if (changed.count("mds_op_complaint_time") || changed.count("mds_op_log_threshold")) { |
3840 | op_tracker.set_complaint_and_threshold(conf->mds_op_complaint_time, conf->mds_op_log_threshold); | |
3841 | } | |
3842 | if (changed.count("mds_op_history_size") || changed.count("mds_op_history_duration")) { | |
3843 | op_tracker.set_history_size_and_duration(conf->mds_op_history_size, conf->mds_op_history_duration); | |
3844 | } | |
3845 | if (changed.count("mds_enable_op_tracker")) { | |
3846 | op_tracker.set_tracking(conf->mds_enable_op_tracker); | |
3847 | } | |
1e59de90 TL |
3848 | if (changed.count("mds_extraordinary_events_dump_interval")) { |
3849 | reset_event_flags(); | |
3850 | extraordinary_events_dump_interval = conf.get_val<std::chrono::seconds> | |
3851 | ("mds_extraordinary_events_dump_interval").count(); | |
3852 | ||
3853 | //Enable the logging only during low level debugging | |
3854 | if (extraordinary_events_dump_interval) { | |
3855 | uint64_t log_level, gather_level; | |
3856 | std::string debug_mds = g_conf().get_val<std::string>("debug_mds"); | |
3857 | auto delim = debug_mds.find("/"); | |
3858 | std::istringstream(debug_mds.substr(0, delim)) >> log_level; | |
3859 | std::istringstream(debug_mds.substr(delim + 1)) >> gather_level; | |
3860 | ||
3861 | if (log_level < 10 && gather_level >= 10) { | |
3862 | dout(0) << __func__ << " Enabling in-memory log dump..." << dendl; | |
3863 | std::scoped_lock lock(mds_lock); | |
3864 | schedule_inmemory_logger(); | |
3865 | } | |
3866 | else { | |
3867 | dout(0) << __func__ << " Enabling in-memory log dump failed. debug_mds=" << log_level | |
3868 | << "/" << gather_level << dendl; | |
3869 | extraordinary_events_dump_interval = 0; | |
3870 | } | |
3871 | } | |
3872 | else { | |
3873 | //The user set mds_extraordinary_events_dump_interval = 0 | |
3874 | dout(0) << __func__ << " In-memory log dump disabled" << dendl; | |
3875 | } | |
3876 | } | |
92f5a8d4 TL |
3877 | if (changed.count("clog_to_monitors") || |
3878 | changed.count("clog_to_syslog") || | |
3879 | changed.count("clog_to_syslog_level") || | |
3880 | changed.count("clog_to_syslog_facility") || | |
3881 | changed.count("clog_to_graylog") || | |
3882 | changed.count("clog_to_graylog_host") || | |
3883 | changed.count("clog_to_graylog_port") || | |
3884 | changed.count("host") || | |
3885 | changed.count("fsid")) { | |
3886 | update_log_config(); | |
3887 | } | |
1e59de90 TL |
3888 | if (changed.count("mds_inject_journal_corrupt_dentry_first")) { |
3889 | inject_journal_corrupt_dentry_first = g_conf().get_val<double>("mds_inject_journal_corrupt_dentry_first"); | |
3890 | } | |
92f5a8d4 | 3891 | |
9f95a23c | 3892 | finisher->queue(new LambdaContext([this, changed](int) { |
92f5a8d4 TL |
3893 | std::scoped_lock lock(mds_lock); |
3894 | ||
f6b5b4d7 TL |
3895 | dout(10) << "flushing conf change to components: " << changed << dendl; |
3896 | ||
92f5a8d4 TL |
3897 | if (changed.count("mds_log_pause") && !g_conf()->mds_log_pause) { |
3898 | mdlog->kick_submitter(); | |
3899 | } | |
3900 | sessionmap.handle_conf_change(changed); | |
3901 | server->handle_conf_change(changed); | |
3902 | mdcache->handle_conf_change(changed, *mdsmap); | |
3903 | purge_queue.handle_conf_change(changed, *mdsmap); | |
3904 | })); | |
3905 | } | |
9f95a23c TL |
3906 | |
3907 | void MDSRank::get_task_status(std::map<std::string, std::string> *status) { | |
3908 | dout(20) << __func__ << dendl; | |
3909 | ||
3910 | // scrub summary for now.. | |
3911 | std::string_view scrub_summary = scrubstack->scrub_summary(); | |
f91f0fd5 TL |
3912 | if (!ScrubStack::is_idle(scrub_summary)) { |
3913 | send_status = true; | |
3914 | status->emplace(SCRUB_STATUS_KEY, std::move(scrub_summary)); | |
3915 | } | |
9f95a23c TL |
3916 | } |
3917 | ||
3918 | void MDSRank::schedule_update_timer_task() { | |
3919 | dout(20) << __func__ << dendl; | |
3920 | ||
3921 | timer.add_event_after(g_conf().get_val<double>("mds_task_status_update_interval"), | |
3922 | new LambdaContext([this](int) { | |
3923 | send_task_status(); | |
3924 | })); | |
3925 | } | |
3926 | ||
3927 | void MDSRank::send_task_status() { | |
3928 | std::map<std::string, std::string> status; | |
3929 | get_task_status(&status); | |
3930 | ||
f91f0fd5 TL |
3931 | if (send_status) { |
3932 | if (status.empty()) { | |
3933 | send_status = false; | |
3934 | } | |
9f95a23c | 3935 | |
f91f0fd5 | 3936 | dout(20) << __func__ << ": updating " << status.size() << " status keys" << dendl; |
9f95a23c TL |
3937 | int r = mgrc->service_daemon_update_task_status(std::move(status)); |
3938 | if (r < 0) { | |
3939 | derr << ": failed to update service daemon status: " << cpp_strerror(r) << dendl; | |
3940 | } | |
f91f0fd5 | 3941 | |
9f95a23c TL |
3942 | } |
3943 | ||
3944 | schedule_update_timer_task(); | |
3945 | } | |
1e59de90 TL |
3946 | |
3947 | void MDSRank::schedule_inmemory_logger() { | |
3948 | dout(20) << __func__ << dendl; | |
3949 | timer.add_event_after(extraordinary_events_dump_interval, | |
3950 | new LambdaContext([this]() { | |
3951 | inmemory_logger(); | |
3952 | })); | |
3953 | } | |
3954 | ||
3955 | void MDSRank::inmemory_logger() { | |
3956 | if (client_eviction_dump || | |
3957 | beacon.missed_beacon_ack_dump || | |
3958 | beacon.missed_internal_heartbeat_dump) { | |
3959 | //dump the in-memory logs if any of these events occured recently | |
3960 | dout(0) << __func__ << " client_eviction_dump "<< client_eviction_dump | |
3961 | << ", missed_beacon_ack_dump " << beacon.missed_beacon_ack_dump | |
3962 | << ", missed_internal_heartbeat_dump " << beacon.missed_internal_heartbeat_dump | |
3963 | << dendl; | |
3964 | reset_event_flags(); | |
3965 | g_ceph_context->_log->dump_recent(); | |
3966 | } | |
3967 | ||
3968 | //reschedule if it's enabled | |
3969 | if (extraordinary_events_dump_interval) { | |
3970 | schedule_inmemory_logger(); | |
3971 | } | |
3972 | } | |
3973 | ||
3974 | void MDSRank::reset_event_flags() { | |
3975 | client_eviction_dump = false; | |
3976 | beacon.missed_beacon_ack_dump = false; | |
3977 | beacon.missed_internal_heartbeat_dump = false; | |
3978 | } |