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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 | #include "include/compat.h" | |
5 | #include "common/Formatter.h" | |
11fdf7f2 | 6 | #include "common/admin_socket.h" |
7c673cae FG |
7 | #include "common/debug.h" |
8 | #include "common/errno.h" | |
9 | #include "include/stringify.h" | |
10 | #include "cls/rbd/cls_rbd_client.h" | |
11 | #include "common/Timer.h" | |
12 | #include "common/WorkQueue.h" | |
13 | #include "global/global_context.h" | |
14 | #include "journal/Journaler.h" | |
7c673cae FG |
15 | #include "librbd/ExclusiveLock.h" |
16 | #include "librbd/ImageCtx.h" | |
17 | #include "librbd/ImageState.h" | |
18 | #include "librbd/Journal.h" | |
19 | #include "librbd/Operations.h" | |
20 | #include "librbd/Utils.h" | |
d2e6a577 | 21 | #include "ImageDeleter.h" |
7c673cae | 22 | #include "ImageReplayer.h" |
9f95a23c | 23 | #include "MirrorStatusUpdater.h" |
7c673cae FG |
24 | #include "Threads.h" |
25 | #include "tools/rbd_mirror/image_replayer/BootstrapRequest.h" | |
9f95a23c TL |
26 | #include "tools/rbd_mirror/image_replayer/ReplayerListener.h" |
27 | #include "tools/rbd_mirror/image_replayer/StateBuilder.h" | |
28 | #include "tools/rbd_mirror/image_replayer/Utils.h" | |
29 | #include "tools/rbd_mirror/image_replayer/journal/Replayer.h" | |
30 | #include "tools/rbd_mirror/image_replayer/journal/StateBuilder.h" | |
31 | #include <map> | |
7c673cae FG |
32 | |
33 | #define dout_context g_ceph_context | |
34 | #define dout_subsys ceph_subsys_rbd_mirror | |
35 | #undef dout_prefix | |
36 | #define dout_prefix *_dout << "rbd::mirror::" << *this << " " \ | |
37 | << __func__ << ": " | |
38 | ||
11fdf7f2 TL |
39 | extern PerfCounters *g_perf_counters; |
40 | ||
7c673cae FG |
41 | namespace rbd { |
42 | namespace mirror { | |
43 | ||
44 | using librbd::util::create_context_callback; | |
7c673cae FG |
45 | |
46 | template <typename I> | |
47 | std::ostream &operator<<(std::ostream &os, | |
48 | const typename ImageReplayer<I>::State &state); | |
49 | ||
50 | namespace { | |
51 | ||
3efd9988 | 52 | template <typename I> |
7c673cae FG |
53 | class ImageReplayerAdminSocketCommand { |
54 | public: | |
3efd9988 FG |
55 | ImageReplayerAdminSocketCommand(const std::string &desc, |
56 | ImageReplayer<I> *replayer) | |
57 | : desc(desc), replayer(replayer) { | |
58 | } | |
7c673cae | 59 | virtual ~ImageReplayerAdminSocketCommand() {} |
9f95a23c | 60 | virtual int call(Formatter *f) = 0; |
3efd9988 FG |
61 | |
62 | std::string desc; | |
63 | ImageReplayer<I> *replayer; | |
64 | bool registered = false; | |
7c673cae FG |
65 | }; |
66 | ||
67 | template <typename I> | |
3efd9988 | 68 | class StatusCommand : public ImageReplayerAdminSocketCommand<I> { |
7c673cae | 69 | public: |
3efd9988 FG |
70 | explicit StatusCommand(const std::string &desc, ImageReplayer<I> *replayer) |
71 | : ImageReplayerAdminSocketCommand<I>(desc, replayer) { | |
72 | } | |
7c673cae | 73 | |
9f95a23c TL |
74 | int call(Formatter *f) override { |
75 | this->replayer->print_status(f); | |
76 | return 0; | |
7c673cae | 77 | } |
7c673cae FG |
78 | }; |
79 | ||
80 | template <typename I> | |
3efd9988 | 81 | class StartCommand : public ImageReplayerAdminSocketCommand<I> { |
7c673cae | 82 | public: |
3efd9988 FG |
83 | explicit StartCommand(const std::string &desc, ImageReplayer<I> *replayer) |
84 | : ImageReplayerAdminSocketCommand<I>(desc, replayer) { | |
85 | } | |
7c673cae | 86 | |
9f95a23c | 87 | int call(Formatter *f) override { |
3efd9988 | 88 | this->replayer->start(nullptr, true); |
9f95a23c | 89 | return 0; |
7c673cae | 90 | } |
7c673cae FG |
91 | }; |
92 | ||
93 | template <typename I> | |
3efd9988 | 94 | class StopCommand : public ImageReplayerAdminSocketCommand<I> { |
7c673cae | 95 | public: |
3efd9988 FG |
96 | explicit StopCommand(const std::string &desc, ImageReplayer<I> *replayer) |
97 | : ImageReplayerAdminSocketCommand<I>(desc, replayer) { | |
98 | } | |
7c673cae | 99 | |
9f95a23c | 100 | int call(Formatter *f) override { |
3efd9988 | 101 | this->replayer->stop(nullptr, true); |
9f95a23c | 102 | return 0; |
7c673cae | 103 | } |
7c673cae FG |
104 | }; |
105 | ||
106 | template <typename I> | |
3efd9988 | 107 | class RestartCommand : public ImageReplayerAdminSocketCommand<I> { |
7c673cae | 108 | public: |
3efd9988 FG |
109 | explicit RestartCommand(const std::string &desc, ImageReplayer<I> *replayer) |
110 | : ImageReplayerAdminSocketCommand<I>(desc, replayer) { | |
111 | } | |
7c673cae | 112 | |
9f95a23c | 113 | int call(Formatter *f) override { |
3efd9988 | 114 | this->replayer->restart(); |
9f95a23c | 115 | return 0; |
7c673cae | 116 | } |
7c673cae FG |
117 | }; |
118 | ||
119 | template <typename I> | |
3efd9988 | 120 | class FlushCommand : public ImageReplayerAdminSocketCommand<I> { |
7c673cae | 121 | public: |
3efd9988 FG |
122 | explicit FlushCommand(const std::string &desc, ImageReplayer<I> *replayer) |
123 | : ImageReplayerAdminSocketCommand<I>(desc, replayer) { | |
124 | } | |
7c673cae | 125 | |
9f95a23c | 126 | int call(Formatter *f) override { |
28e407b8 | 127 | this->replayer->flush(); |
9f95a23c | 128 | return 0; |
7c673cae | 129 | } |
7c673cae FG |
130 | }; |
131 | ||
132 | template <typename I> | |
133 | class ImageReplayerAdminSocketHook : public AdminSocketHook { | |
134 | public: | |
135 | ImageReplayerAdminSocketHook(CephContext *cct, const std::string &name, | |
31f18b77 | 136 | ImageReplayer<I> *replayer) |
3efd9988 FG |
137 | : admin_socket(cct->get_admin_socket()), |
138 | commands{{"rbd mirror flush " + name, | |
139 | new FlushCommand<I>("flush rbd mirror " + name, replayer)}, | |
140 | {"rbd mirror restart " + name, | |
141 | new RestartCommand<I>("restart rbd mirror " + name, replayer)}, | |
142 | {"rbd mirror start " + name, | |
143 | new StartCommand<I>("start rbd mirror " + name, replayer)}, | |
144 | {"rbd mirror status " + name, | |
145 | new StatusCommand<I>("get status for rbd mirror " + name, replayer)}, | |
146 | {"rbd mirror stop " + name, | |
147 | new StopCommand<I>("stop rbd mirror " + name, replayer)}} { | |
d2e6a577 FG |
148 | } |
149 | ||
150 | int register_commands() { | |
3efd9988 | 151 | for (auto &it : commands) { |
9f95a23c | 152 | int r = admin_socket->register_command(it.first, this, |
3efd9988 FG |
153 | it.second->desc); |
154 | if (r < 0) { | |
155 | return r; | |
156 | } | |
157 | it.second->registered = true; | |
7c673cae | 158 | } |
d2e6a577 | 159 | return 0; |
7c673cae FG |
160 | } |
161 | ||
162 | ~ImageReplayerAdminSocketHook() override { | |
9f95a23c | 163 | admin_socket->unregister_commands(this); |
3efd9988 | 164 | for (auto &it : commands) { |
3efd9988 | 165 | delete it.second; |
7c673cae | 166 | } |
31f18b77 | 167 | commands.clear(); |
7c673cae FG |
168 | } |
169 | ||
9f95a23c TL |
170 | int call(std::string_view command, const cmdmap_t& cmdmap, |
171 | Formatter *f, | |
172 | std::ostream& errss, | |
173 | bufferlist& out) override { | |
3efd9988 | 174 | auto i = commands.find(command); |
11fdf7f2 | 175 | ceph_assert(i != commands.end()); |
9f95a23c | 176 | return i->second->call(f); |
7c673cae FG |
177 | } |
178 | ||
179 | private: | |
11fdf7f2 TL |
180 | typedef std::map<std::string, ImageReplayerAdminSocketCommand<I>*, |
181 | std::less<>> Commands; | |
7c673cae FG |
182 | |
183 | AdminSocket *admin_socket; | |
184 | Commands commands; | |
185 | }; | |
186 | ||
7c673cae FG |
187 | } // anonymous namespace |
188 | ||
189 | template <typename I> | |
190 | void ImageReplayer<I>::BootstrapProgressContext::update_progress( | |
191 | const std::string &description, bool flush) | |
192 | { | |
193 | const std::string desc = "bootstrapping, " + description; | |
194 | replayer->set_state_description(0, desc); | |
195 | if (flush) { | |
196 | replayer->update_mirror_image_status(false, boost::none); | |
197 | } | |
198 | } | |
199 | ||
200 | template <typename I> | |
9f95a23c TL |
201 | struct ImageReplayer<I>::ReplayerListener |
202 | : public image_replayer::ReplayerListener { | |
203 | ImageReplayer<I>* image_replayer; | |
204 | ||
205 | ReplayerListener(ImageReplayer<I>* image_replayer) | |
206 | : image_replayer(image_replayer) { | |
207 | } | |
208 | ||
209 | void handle_notification() override { | |
210 | image_replayer->handle_replayer_notification(); | |
211 | } | |
212 | }; | |
7c673cae FG |
213 | |
214 | template <typename I> | |
9f95a23c TL |
215 | ImageReplayer<I>::ImageReplayer( |
216 | librados::IoCtx &local_io_ctx, const std::string &local_mirror_uuid, | |
217 | const std::string &global_image_id, Threads<I> *threads, | |
218 | InstanceWatcher<I> *instance_watcher, | |
219 | MirrorStatusUpdater<I>* local_status_updater, | |
220 | journal::CacheManagerHandler *cache_manager_handler, | |
221 | PoolMetaCache* pool_meta_cache) : | |
222 | m_local_io_ctx(local_io_ctx), m_local_mirror_uuid(local_mirror_uuid), | |
223 | m_global_image_id(global_image_id), m_threads(threads), | |
31f18b77 | 224 | m_instance_watcher(instance_watcher), |
9f95a23c TL |
225 | m_local_status_updater(local_status_updater), |
226 | m_cache_manager_handler(cache_manager_handler), | |
227 | m_pool_meta_cache(pool_meta_cache), | |
228 | m_local_image_name(global_image_id), | |
229 | m_lock(ceph::make_mutex("rbd::mirror::ImageReplayer " + | |
230 | stringify(local_io_ctx.get_id()) + " " + global_image_id)), | |
7c673cae | 231 | m_progress_cxt(this), |
9f95a23c | 232 | m_replayer_listener(new ReplayerListener(this)) |
7c673cae FG |
233 | { |
234 | // Register asok commands using a temporary "remote_pool_name/global_image_id" | |
235 | // name. When the image name becomes known on start the asok commands will be | |
236 | // re-registered using "remote_pool_name/remote_image_name" name. | |
237 | ||
9f95a23c TL |
238 | m_image_spec = image_replayer::util::compute_image_spec( |
239 | local_io_ctx, global_image_id); | |
d2e6a577 | 240 | register_admin_socket_hook(); |
7c673cae FG |
241 | } |
242 | ||
243 | template <typename I> | |
244 | ImageReplayer<I>::~ImageReplayer() | |
245 | { | |
d2e6a577 | 246 | unregister_admin_socket_hook(); |
9f95a23c | 247 | ceph_assert(m_state_builder == nullptr); |
11fdf7f2 TL |
248 | ceph_assert(m_on_start_finish == nullptr); |
249 | ceph_assert(m_on_stop_finish == nullptr); | |
250 | ceph_assert(m_bootstrap_request == nullptr); | |
1911f103 | 251 | ceph_assert(m_update_status_task == nullptr); |
9f95a23c | 252 | delete m_replayer_listener; |
7c673cae FG |
253 | } |
254 | ||
c07f9fc5 FG |
255 | template <typename I> |
256 | image_replayer::HealthState ImageReplayer<I>::get_health_state() const { | |
9f95a23c | 257 | std::lock_guard locker{m_lock}; |
c07f9fc5 FG |
258 | |
259 | if (!m_mirror_image_status_state) { | |
260 | return image_replayer::HEALTH_STATE_OK; | |
261 | } else if (*m_mirror_image_status_state == | |
262 | cls::rbd::MIRROR_IMAGE_STATUS_STATE_SYNCING || | |
263 | *m_mirror_image_status_state == | |
264 | cls::rbd::MIRROR_IMAGE_STATUS_STATE_UNKNOWN) { | |
265 | return image_replayer::HEALTH_STATE_WARNING; | |
266 | } | |
267 | return image_replayer::HEALTH_STATE_ERROR; | |
268 | } | |
269 | ||
7c673cae | 270 | template <typename I> |
9f95a23c TL |
271 | void ImageReplayer<I>::add_peer(const Peer<I>& peer) { |
272 | dout(10) << "peer=" << peer << dendl; | |
273 | ||
274 | std::lock_guard locker{m_lock}; | |
275 | auto it = m_peers.find(peer); | |
d2e6a577 | 276 | if (it == m_peers.end()) { |
9f95a23c | 277 | m_peers.insert(peer); |
7c673cae FG |
278 | } |
279 | } | |
280 | ||
7c673cae FG |
281 | template <typename I> |
282 | void ImageReplayer<I>::set_state_description(int r, const std::string &desc) { | |
9f95a23c | 283 | dout(10) << "r=" << r << ", desc=" << desc << dendl; |
7c673cae | 284 | |
9f95a23c | 285 | std::lock_guard l{m_lock}; |
7c673cae FG |
286 | m_last_r = r; |
287 | m_state_desc = desc; | |
288 | } | |
289 | ||
290 | template <typename I> | |
291 | void ImageReplayer<I>::start(Context *on_finish, bool manual) | |
292 | { | |
11fdf7f2 | 293 | dout(10) << "on_finish=" << on_finish << dendl; |
7c673cae FG |
294 | |
295 | int r = 0; | |
296 | { | |
9f95a23c | 297 | std::lock_guard locker{m_lock}; |
7c673cae FG |
298 | if (!is_stopped_()) { |
299 | derr << "already running" << dendl; | |
300 | r = -EINVAL; | |
301 | } else if (m_manual_stop && !manual) { | |
302 | dout(5) << "stopped manually, ignoring start without manual flag" | |
303 | << dendl; | |
304 | r = -EPERM; | |
305 | } else { | |
306 | m_state = STATE_STARTING; | |
307 | m_last_r = 0; | |
308 | m_state_desc.clear(); | |
309 | m_manual_stop = false; | |
d2e6a577 | 310 | m_delete_requested = false; |
7c673cae FG |
311 | |
312 | if (on_finish != nullptr) { | |
11fdf7f2 | 313 | ceph_assert(m_on_start_finish == nullptr); |
7c673cae FG |
314 | m_on_start_finish = on_finish; |
315 | } | |
11fdf7f2 | 316 | ceph_assert(m_on_stop_finish == nullptr); |
7c673cae FG |
317 | } |
318 | } | |
319 | ||
320 | if (r < 0) { | |
321 | if (on_finish) { | |
322 | on_finish->complete(r); | |
323 | } | |
324 | return; | |
325 | } | |
326 | ||
9f95a23c | 327 | bootstrap(); |
7c673cae FG |
328 | } |
329 | ||
330 | template <typename I> | |
9f95a23c | 331 | void ImageReplayer<I>::bootstrap() { |
11fdf7f2 | 332 | dout(10) << dendl; |
7c673cae | 333 | |
9f95a23c | 334 | std::unique_lock locker{m_lock}; |
b32b8144 | 335 | if (m_peers.empty()) { |
9f95a23c TL |
336 | locker.unlock(); |
337 | ||
338 | dout(5) << "no peer clusters" << dendl; | |
339 | on_start_fail(-ENOENT, "no peer clusters"); | |
b32b8144 FG |
340 | return; |
341 | } | |
7c673cae | 342 | |
d2e6a577 | 343 | // TODO need to support multiple remote images |
11fdf7f2 | 344 | ceph_assert(!m_peers.empty()); |
9f95a23c | 345 | m_remote_image_peer = *m_peers.begin(); |
7c673cae | 346 | |
9f95a23c | 347 | if (on_start_interrupted(m_lock)) { |
b32b8144 FG |
348 | return; |
349 | } | |
7c673cae | 350 | |
9f95a23c TL |
351 | ceph_assert(m_state_builder == nullptr); |
352 | auto ctx = create_context_callback< | |
11fdf7f2 | 353 | ImageReplayer, &ImageReplayer<I>::handle_bootstrap>(this); |
9f95a23c TL |
354 | auto request = image_replayer::BootstrapRequest<I>::create( |
355 | m_threads, m_local_io_ctx, m_remote_image_peer.io_ctx, m_instance_watcher, | |
356 | m_global_image_id, m_local_mirror_uuid, | |
357 | m_remote_image_peer.remote_pool_meta, m_cache_manager_handler, | |
358 | m_pool_meta_cache, &m_progress_cxt, &m_state_builder, &m_resync_requested, | |
359 | ctx); | |
7c673cae | 360 | |
9f95a23c TL |
361 | request->get(); |
362 | m_bootstrap_request = request; | |
363 | locker.unlock(); | |
7c673cae | 364 | |
9f95a23c | 365 | update_mirror_image_status(false, boost::none); |
7c673cae FG |
366 | request->send(); |
367 | } | |
368 | ||
369 | template <typename I> | |
370 | void ImageReplayer<I>::handle_bootstrap(int r) { | |
11fdf7f2 | 371 | dout(10) << "r=" << r << dendl; |
7c673cae | 372 | { |
9f95a23c | 373 | std::lock_guard locker{m_lock}; |
7c673cae FG |
374 | m_bootstrap_request->put(); |
375 | m_bootstrap_request = nullptr; | |
7c673cae FG |
376 | } |
377 | ||
11fdf7f2 TL |
378 | if (on_start_interrupted()) { |
379 | return; | |
9f95a23c TL |
380 | } else if (r == -ENOMSG) { |
381 | dout(5) << "local image is primary" << dendl; | |
382 | on_start_fail(0, "local image is primary"); | |
383 | return; | |
11fdf7f2 | 384 | } else if (r == -EREMOTEIO) { |
c07f9fc5 FG |
385 | dout(5) << "remote image is non-primary" << dendl; |
386 | on_start_fail(-EREMOTEIO, "remote image is non-primary"); | |
7c673cae FG |
387 | return; |
388 | } else if (r == -EEXIST) { | |
7c673cae FG |
389 | on_start_fail(r, "split-brain detected"); |
390 | return; | |
9f95a23c TL |
391 | } else if (r == -ENOLINK) { |
392 | m_delete_requested = true; | |
393 | on_start_fail(0, "remote image no longer exists"); | |
394 | return; | |
7c673cae FG |
395 | } else if (r < 0) { |
396 | on_start_fail(r, "error bootstrapping replay"); | |
397 | return; | |
d2e6a577 FG |
398 | } else if (m_resync_requested) { |
399 | on_start_fail(0, "resync requested"); | |
400 | return; | |
7c673cae FG |
401 | } |
402 | ||
9f95a23c | 403 | start_replay(); |
7c673cae FG |
404 | } |
405 | ||
406 | template <typename I> | |
9f95a23c | 407 | void ImageReplayer<I>::start_replay() { |
11fdf7f2 | 408 | dout(10) << dendl; |
7c673cae | 409 | |
9f95a23c TL |
410 | std::unique_lock locker{m_lock}; |
411 | ceph_assert(m_replayer == nullptr); | |
412 | m_replayer = m_state_builder->create_replayer(m_threads, m_instance_watcher, | |
413 | m_local_mirror_uuid, | |
414 | m_pool_meta_cache, | |
415 | m_replayer_listener); | |
416 | ||
417 | auto ctx = create_context_callback< | |
418 | ImageReplayer<I>, &ImageReplayer<I>::handle_start_replay>(this); | |
419 | m_replayer->init(ctx); | |
7c673cae FG |
420 | } |
421 | ||
422 | template <typename I> | |
9f95a23c | 423 | void ImageReplayer<I>::handle_start_replay(int r) { |
11fdf7f2 | 424 | dout(10) << "r=" << r << dendl; |
7c673cae | 425 | |
11fdf7f2 TL |
426 | if (on_start_interrupted()) { |
427 | return; | |
428 | } else if (r < 0) { | |
9f95a23c TL |
429 | std::string error_description = m_replayer->get_error_description(); |
430 | if (r == -ENOTCONN && m_replayer->is_resync_requested()) { | |
431 | std::unique_lock locker{m_lock}; | |
d2e6a577 | 432 | m_resync_requested = true; |
7c673cae | 433 | } |
7c673cae | 434 | |
9f95a23c TL |
435 | // shut down not required if init failed |
436 | m_replayer->destroy(); | |
437 | m_replayer = nullptr; | |
7c673cae | 438 | |
9f95a23c TL |
439 | derr << "error starting replay: " << cpp_strerror(r) << dendl; |
440 | on_start_fail(r, error_description); | |
7c673cae FG |
441 | return; |
442 | } | |
443 | ||
9f95a23c | 444 | Context *on_finish = nullptr; |
7c673cae | 445 | { |
9f95a23c | 446 | std::unique_lock locker{m_lock}; |
11fdf7f2 | 447 | ceph_assert(m_state == STATE_STARTING); |
7c673cae FG |
448 | m_state = STATE_REPLAYING; |
449 | std::swap(m_on_start_finish, on_finish); | |
1911f103 TL |
450 | |
451 | std::unique_lock timer_locker{m_threads->timer_lock}; | |
452 | schedule_update_mirror_image_replay_status(); | |
7c673cae FG |
453 | } |
454 | ||
7c673cae | 455 | update_mirror_image_status(true, boost::none); |
7c673cae | 456 | if (on_replay_interrupted()) { |
9f95a23c TL |
457 | if (on_finish != nullptr) { |
458 | on_finish->complete(r); | |
459 | } | |
7c673cae FG |
460 | return; |
461 | } | |
462 | ||
11fdf7f2 | 463 | dout(10) << "start succeeded" << dendl; |
d2e6a577 | 464 | if (on_finish != nullptr) { |
11fdf7f2 | 465 | dout(10) << "on finish complete, r=" << r << dendl; |
d2e6a577 FG |
466 | on_finish->complete(r); |
467 | } | |
7c673cae FG |
468 | } |
469 | ||
470 | template <typename I> | |
471 | void ImageReplayer<I>::on_start_fail(int r, const std::string &desc) | |
472 | { | |
9f95a23c TL |
473 | dout(10) << "r=" << r << ", desc=" << desc << dendl; |
474 | Context *ctx = new LambdaContext([this, r, desc](int _r) { | |
7c673cae | 475 | { |
9f95a23c | 476 | std::lock_guard locker{m_lock}; |
11fdf7f2 | 477 | ceph_assert(m_state == STATE_STARTING); |
7c673cae | 478 | m_state = STATE_STOPPING; |
d2e6a577 | 479 | if (r < 0 && r != -ECANCELED && r != -EREMOTEIO && r != -ENOENT) { |
7c673cae FG |
480 | derr << "start failed: " << cpp_strerror(r) << dendl; |
481 | } else { | |
11fdf7f2 | 482 | dout(10) << "start canceled" << dendl; |
7c673cae FG |
483 | } |
484 | } | |
485 | ||
486 | set_state_description(r, desc); | |
9f95a23c | 487 | update_mirror_image_status(false, boost::none); |
7c673cae FG |
488 | shut_down(r); |
489 | }); | |
490 | m_threads->work_queue->queue(ctx, 0); | |
491 | } | |
492 | ||
493 | template <typename I> | |
11fdf7f2 | 494 | bool ImageReplayer<I>::on_start_interrupted() { |
9f95a23c | 495 | std::lock_guard locker{m_lock}; |
11fdf7f2 TL |
496 | return on_start_interrupted(m_lock); |
497 | } | |
498 | ||
499 | template <typename I> | |
9f95a23c TL |
500 | bool ImageReplayer<I>::on_start_interrupted(ceph::mutex& lock) { |
501 | ceph_assert(ceph_mutex_is_locked(m_lock)); | |
11fdf7f2 TL |
502 | ceph_assert(m_state == STATE_STARTING); |
503 | if (!m_stop_requested) { | |
7c673cae FG |
504 | return false; |
505 | } | |
506 | ||
11fdf7f2 | 507 | on_start_fail(-ECANCELED, ""); |
7c673cae FG |
508 | return true; |
509 | } | |
510 | ||
511 | template <typename I> | |
512 | void ImageReplayer<I>::stop(Context *on_finish, bool manual, int r, | |
513 | const std::string& desc) | |
514 | { | |
11fdf7f2 | 515 | dout(10) << "on_finish=" << on_finish << ", manual=" << manual |
7c673cae FG |
516 | << ", desc=" << desc << dendl; |
517 | ||
518 | image_replayer::BootstrapRequest<I> *bootstrap_request = nullptr; | |
519 | bool shut_down_replay = false; | |
520 | bool running = true; | |
7c673cae | 521 | { |
9f95a23c | 522 | std::lock_guard locker{m_lock}; |
7c673cae FG |
523 | |
524 | if (!is_running_()) { | |
525 | running = false; | |
526 | } else { | |
527 | if (!is_stopped_()) { | |
528 | if (m_state == STATE_STARTING) { | |
11fdf7f2 TL |
529 | dout(10) << "canceling start" << dendl; |
530 | if (m_bootstrap_request != nullptr) { | |
7c673cae FG |
531 | bootstrap_request = m_bootstrap_request; |
532 | bootstrap_request->get(); | |
533 | } | |
534 | } else { | |
11fdf7f2 | 535 | dout(10) << "interrupting replay" << dendl; |
7c673cae FG |
536 | shut_down_replay = true; |
537 | } | |
538 | ||
11fdf7f2 | 539 | ceph_assert(m_on_stop_finish == nullptr); |
7c673cae FG |
540 | std::swap(m_on_stop_finish, on_finish); |
541 | m_stop_requested = true; | |
542 | m_manual_stop = manual; | |
7c673cae FG |
543 | } |
544 | } | |
545 | } | |
546 | ||
547 | // avoid holding lock since bootstrap request will update status | |
548 | if (bootstrap_request != nullptr) { | |
11fdf7f2 | 549 | dout(10) << "canceling bootstrap" << dendl; |
7c673cae FG |
550 | bootstrap_request->cancel(); |
551 | bootstrap_request->put(); | |
552 | } | |
553 | ||
7c673cae FG |
554 | if (!running) { |
555 | dout(20) << "not running" << dendl; | |
556 | if (on_finish) { | |
557 | on_finish->complete(-EINVAL); | |
558 | } | |
559 | return; | |
560 | } | |
561 | ||
562 | if (shut_down_replay) { | |
563 | on_stop_journal_replay(r, desc); | |
564 | } else if (on_finish != nullptr) { | |
565 | on_finish->complete(0); | |
566 | } | |
567 | } | |
568 | ||
569 | template <typename I> | |
570 | void ImageReplayer<I>::on_stop_journal_replay(int r, const std::string &desc) | |
571 | { | |
11fdf7f2 | 572 | dout(10) << dendl; |
7c673cae FG |
573 | |
574 | { | |
9f95a23c | 575 | std::lock_guard locker{m_lock}; |
7c673cae FG |
576 | if (m_state != STATE_REPLAYING) { |
577 | // might be invoked multiple times while stopping | |
578 | return; | |
579 | } | |
9f95a23c | 580 | |
7c673cae FG |
581 | m_stop_requested = true; |
582 | m_state = STATE_STOPPING; | |
583 | } | |
584 | ||
1911f103 | 585 | cancel_update_mirror_image_replay_status(); |
7c673cae | 586 | set_state_description(r, desc); |
a8e16298 | 587 | update_mirror_image_status(true, boost::none); |
7c673cae FG |
588 | shut_down(0); |
589 | } | |
590 | ||
7c673cae FG |
591 | template <typename I> |
592 | void ImageReplayer<I>::restart(Context *on_finish) | |
593 | { | |
9f95a23c | 594 | auto ctx = new LambdaContext( |
7c673cae FG |
595 | [this, on_finish](int r) { |
596 | if (r < 0) { | |
597 | // Try start anyway. | |
598 | } | |
599 | start(on_finish, true); | |
600 | }); | |
601 | stop(ctx); | |
602 | } | |
603 | ||
604 | template <typename I> | |
81eedcae | 605 | void ImageReplayer<I>::flush() |
7c673cae | 606 | { |
81eedcae | 607 | C_SaferCond ctx; |
7c673cae | 608 | |
9f95a23c TL |
609 | { |
610 | std::unique_lock locker{m_lock}; | |
611 | if (m_state != STATE_REPLAYING) { | |
612 | return; | |
613 | } | |
7c673cae | 614 | |
9f95a23c TL |
615 | dout(10) << dendl; |
616 | ceph_assert(m_replayer != nullptr); | |
617 | m_replayer->flush(&ctx); | |
81eedcae TL |
618 | } |
619 | ||
9f95a23c TL |
620 | int r = ctx.wait(); |
621 | if (r >= 0) { | |
622 | update_mirror_image_status(false, boost::none); | |
7c673cae | 623 | } |
7c673cae FG |
624 | } |
625 | ||
626 | template <typename I> | |
627 | bool ImageReplayer<I>::on_replay_interrupted() | |
628 | { | |
629 | bool shut_down; | |
630 | { | |
9f95a23c | 631 | std::lock_guard locker{m_lock}; |
7c673cae FG |
632 | shut_down = m_stop_requested; |
633 | } | |
634 | ||
635 | if (shut_down) { | |
636 | on_stop_journal_replay(); | |
637 | } | |
638 | return shut_down; | |
639 | } | |
640 | ||
641 | template <typename I> | |
9f95a23c | 642 | void ImageReplayer<I>::print_status(Formatter *f) |
7c673cae | 643 | { |
11fdf7f2 | 644 | dout(10) << dendl; |
7c673cae | 645 | |
9f95a23c | 646 | std::lock_guard l{m_lock}; |
7c673cae | 647 | |
9f95a23c TL |
648 | f->open_object_section("image_replayer"); |
649 | f->dump_string("name", m_image_spec); | |
650 | f->dump_string("state", to_string(m_state)); | |
651 | f->close_section(); | |
7c673cae FG |
652 | } |
653 | ||
1911f103 TL |
654 | template <typename I> |
655 | void ImageReplayer<I>::schedule_update_mirror_image_replay_status() { | |
656 | ceph_assert(ceph_mutex_is_locked_by_me(m_lock)); | |
657 | ceph_assert(ceph_mutex_is_locked_by_me(m_threads->timer_lock)); | |
658 | if (m_state != STATE_REPLAYING) { | |
659 | return; | |
660 | } | |
661 | ||
662 | dout(10) << dendl; | |
663 | ||
664 | // periodically update the replaying status even if nothing changes | |
665 | // so that we can adjust our performance stats | |
666 | ceph_assert(m_update_status_task == nullptr); | |
667 | m_update_status_task = create_context_callback< | |
668 | ImageReplayer<I>, | |
669 | &ImageReplayer<I>::handle_update_mirror_image_replay_status>(this); | |
670 | m_threads->timer->add_event_after(10, m_update_status_task); | |
671 | } | |
672 | ||
673 | template <typename I> | |
674 | void ImageReplayer<I>::handle_update_mirror_image_replay_status(int r) { | |
675 | dout(10) << dendl; | |
676 | ||
677 | auto ctx = new LambdaContext([this](int) { | |
678 | update_mirror_image_status(false, boost::none); | |
679 | ||
680 | { | |
681 | std::unique_lock locker{m_lock}; | |
682 | std::unique_lock timer_locker{m_threads->timer_lock}; | |
683 | ceph_assert(m_update_status_task != nullptr); | |
684 | m_update_status_task = nullptr; | |
685 | ||
686 | schedule_update_mirror_image_replay_status(); | |
687 | } | |
688 | ||
689 | m_in_flight_op_tracker.finish_op(); | |
690 | }); | |
691 | ||
692 | m_in_flight_op_tracker.start_op(); | |
693 | m_threads->work_queue->queue(ctx, 0); | |
694 | } | |
695 | ||
696 | template <typename I> | |
697 | void ImageReplayer<I>::cancel_update_mirror_image_replay_status() { | |
698 | std::unique_lock timer_locker{m_threads->timer_lock}; | |
699 | if (m_update_status_task != nullptr) { | |
700 | dout(10) << dendl; | |
701 | ||
702 | if (m_threads->timer->cancel_event(m_update_status_task)) { | |
703 | m_update_status_task = nullptr; | |
704 | } | |
705 | } | |
706 | } | |
707 | ||
7c673cae | 708 | template <typename I> |
9f95a23c TL |
709 | void ImageReplayer<I>::update_mirror_image_status( |
710 | bool force, const OptionalState &opt_state) { | |
711 | dout(15) << "force=" << force << ", " | |
712 | << "state=" << opt_state << dendl; | |
7c673cae FG |
713 | |
714 | { | |
9f95a23c TL |
715 | std::lock_guard locker{m_lock}; |
716 | if (!force && !is_stopped_() && !is_running_()) { | |
717 | dout(15) << "shut down in-progress: ignoring update" << dendl; | |
28e407b8 | 718 | return; |
28e407b8 AA |
719 | } |
720 | } | |
721 | ||
9f95a23c TL |
722 | m_in_flight_op_tracker.start_op(); |
723 | auto ctx = new LambdaContext( | |
724 | [this, force, opt_state](int r) { | |
725 | set_mirror_image_status_update(force, opt_state); | |
11fdf7f2 TL |
726 | }); |
727 | m_threads->work_queue->queue(ctx, 0); | |
7c673cae FG |
728 | } |
729 | ||
730 | template <typename I> | |
9f95a23c TL |
731 | void ImageReplayer<I>::set_mirror_image_status_update( |
732 | bool force, const OptionalState &opt_state) { | |
733 | dout(15) << "force=" << force << ", " | |
734 | << "state=" << opt_state << dendl; | |
7c673cae | 735 | |
28e407b8 AA |
736 | reregister_admin_socket_hook(); |
737 | ||
7c673cae FG |
738 | State state; |
739 | std::string state_desc; | |
740 | int last_r; | |
7c673cae | 741 | bool stopping_replay; |
c07f9fc5 | 742 | |
9f95a23c TL |
743 | auto mirror_image_status_state = boost::make_optional( |
744 | false, cls::rbd::MIRROR_IMAGE_STATUS_STATE_UNKNOWN); | |
c07f9fc5 | 745 | image_replayer::BootstrapRequest<I>* bootstrap_request = nullptr; |
7c673cae | 746 | { |
9f95a23c | 747 | std::lock_guard locker{m_lock}; |
7c673cae FG |
748 | state = m_state; |
749 | state_desc = m_state_desc; | |
c07f9fc5 | 750 | mirror_image_status_state = m_mirror_image_status_state; |
7c673cae | 751 | last_r = m_last_r; |
9f95a23c | 752 | stopping_replay = (m_replayer != nullptr); |
c07f9fc5 FG |
753 | |
754 | if (m_bootstrap_request != nullptr) { | |
755 | bootstrap_request = m_bootstrap_request; | |
756 | bootstrap_request->get(); | |
757 | } | |
758 | } | |
759 | ||
760 | bool syncing = false; | |
761 | if (bootstrap_request != nullptr) { | |
762 | syncing = bootstrap_request->is_syncing(); | |
763 | bootstrap_request->put(); | |
764 | bootstrap_request = nullptr; | |
7c673cae FG |
765 | } |
766 | ||
767 | if (opt_state) { | |
768 | state = *opt_state; | |
769 | } | |
770 | ||
9f95a23c | 771 | cls::rbd::MirrorImageSiteStatus status; |
7c673cae FG |
772 | status.up = true; |
773 | switch (state) { | |
774 | case STATE_STARTING: | |
c07f9fc5 | 775 | if (syncing) { |
7c673cae FG |
776 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_SYNCING; |
777 | status.description = state_desc.empty() ? "syncing" : state_desc; | |
c07f9fc5 | 778 | mirror_image_status_state = status.state; |
7c673cae FG |
779 | } else { |
780 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_STARTING_REPLAY; | |
781 | status.description = "starting replay"; | |
782 | } | |
783 | break; | |
784 | case STATE_REPLAYING: | |
7c673cae FG |
785 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_REPLAYING; |
786 | { | |
9f95a23c TL |
787 | std::string desc; |
788 | auto on_req_finish = new LambdaContext( | |
789 | [this, force](int r) { | |
11fdf7f2 | 790 | dout(15) << "replay status ready: r=" << r << dendl; |
7c673cae | 791 | if (r >= 0) { |
9f95a23c | 792 | set_mirror_image_status_update(force, boost::none); |
7c673cae | 793 | } else if (r == -EAGAIN) { |
9f95a23c | 794 | m_in_flight_op_tracker.finish_op(); |
7c673cae FG |
795 | } |
796 | }); | |
797 | ||
9f95a23c TL |
798 | ceph_assert(m_replayer != nullptr); |
799 | if (!m_replayer->get_replay_status(&desc, on_req_finish)) { | |
11fdf7f2 | 800 | dout(15) << "waiting for replay status" << dendl; |
7c673cae FG |
801 | return; |
802 | } | |
9f95a23c | 803 | |
7c673cae | 804 | status.description = "replaying, " + desc; |
11fdf7f2 TL |
805 | mirror_image_status_state = boost::make_optional( |
806 | false, cls::rbd::MIRROR_IMAGE_STATUS_STATE_UNKNOWN); | |
7c673cae FG |
807 | } |
808 | break; | |
809 | case STATE_STOPPING: | |
810 | if (stopping_replay) { | |
811 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_STOPPING_REPLAY; | |
a8e16298 | 812 | status.description = state_desc.empty() ? "stopping replay" : state_desc; |
7c673cae FG |
813 | break; |
814 | } | |
815 | // FALLTHROUGH | |
816 | case STATE_STOPPED: | |
c07f9fc5 FG |
817 | if (last_r == -EREMOTEIO) { |
818 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_UNKNOWN; | |
819 | status.description = state_desc; | |
820 | mirror_image_status_state = status.state; | |
9f95a23c | 821 | } else if (last_r < 0 && last_r != -ECANCELED) { |
7c673cae FG |
822 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_ERROR; |
823 | status.description = state_desc; | |
c07f9fc5 | 824 | mirror_image_status_state = status.state; |
7c673cae FG |
825 | } else { |
826 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_STOPPED; | |
827 | status.description = state_desc.empty() ? "stopped" : state_desc; | |
c07f9fc5 | 828 | mirror_image_status_state = boost::none; |
7c673cae FG |
829 | } |
830 | break; | |
831 | default: | |
11fdf7f2 | 832 | ceph_assert(!"invalid state"); |
7c673cae FG |
833 | } |
834 | ||
c07f9fc5 | 835 | { |
9f95a23c | 836 | std::lock_guard locker{m_lock}; |
c07f9fc5 FG |
837 | m_mirror_image_status_state = mirror_image_status_state; |
838 | } | |
839 | ||
840 | // prevent the status from ping-ponging when failed replays are restarted | |
841 | if (mirror_image_status_state && | |
842 | *mirror_image_status_state == cls::rbd::MIRROR_IMAGE_STATUS_STATE_ERROR) { | |
843 | status.state = *mirror_image_status_state; | |
844 | } | |
845 | ||
11fdf7f2 | 846 | dout(15) << "status=" << status << dendl; |
9f95a23c TL |
847 | m_local_status_updater->set_mirror_image_status(m_global_image_id, status, |
848 | force); | |
849 | if (m_remote_image_peer.mirror_status_updater != nullptr) { | |
850 | m_remote_image_peer.mirror_status_updater->set_mirror_image_status( | |
851 | m_global_image_id, status, force); | |
7c673cae FG |
852 | } |
853 | ||
9f95a23c | 854 | m_in_flight_op_tracker.finish_op(); |
7c673cae FG |
855 | } |
856 | ||
857 | template <typename I> | |
858 | void ImageReplayer<I>::shut_down(int r) { | |
11fdf7f2 | 859 | dout(10) << "r=" << r << dendl; |
3efd9988 | 860 | |
3efd9988 | 861 | { |
9f95a23c | 862 | std::lock_guard locker{m_lock}; |
11fdf7f2 | 863 | ceph_assert(m_state == STATE_STOPPING); |
7c673cae FG |
864 | } |
865 | ||
9f95a23c TL |
866 | if (!m_in_flight_op_tracker.empty()) { |
867 | dout(15) << "waiting for in-flight operations to complete" << dendl; | |
868 | m_in_flight_op_tracker.wait_for_ops(new LambdaContext([this, r](int) { | |
869 | shut_down(r); | |
870 | })); | |
871 | return; | |
872 | } | |
31f18b77 | 873 | |
7c673cae | 874 | // chain the shut down sequence (reverse order) |
9f95a23c | 875 | Context *ctx = new LambdaContext( |
7c673cae | 876 | [this, r](int _r) { |
9f95a23c | 877 | update_mirror_image_status(true, STATE_STOPPED); |
7c673cae FG |
878 | handle_shut_down(r); |
879 | }); | |
31f18b77 | 880 | |
9f95a23c TL |
881 | // destruct the state builder |
882 | if (m_state_builder != nullptr) { | |
883 | ctx = new LambdaContext([this, ctx](int r) { | |
884 | m_state_builder->close(ctx); | |
31f18b77 FG |
885 | }); |
886 | } | |
887 | ||
9f95a23c TL |
888 | // close the replayer |
889 | if (m_replayer != nullptr) { | |
890 | ctx = new LambdaContext([this, ctx](int r) { | |
891 | m_replayer->destroy(); | |
892 | m_replayer = nullptr; | |
893 | ctx->complete(0); | |
894 | }); | |
895 | ctx = new LambdaContext([this, ctx](int r) { | |
896 | m_replayer->shut_down(ctx); | |
31f18b77 | 897 | }); |
7c673cae | 898 | } |
31f18b77 | 899 | |
7c673cae FG |
900 | m_threads->work_queue->queue(ctx, 0); |
901 | } | |
902 | ||
903 | template <typename I> | |
904 | void ImageReplayer<I>::handle_shut_down(int r) { | |
11fdf7f2 TL |
905 | bool resync_requested = false; |
906 | bool delete_requested = false; | |
3efd9988 | 907 | bool unregister_asok_hook = false; |
7c673cae | 908 | { |
9f95a23c | 909 | std::lock_guard locker{m_lock}; |
7c673cae | 910 | |
9f95a23c TL |
911 | if (m_delete_requested && m_state_builder != nullptr && |
912 | !m_state_builder->local_image_id.empty()) { | |
913 | ceph_assert(m_state_builder->remote_image_id.empty()); | |
d2e6a577 | 914 | dout(0) << "remote image no longer exists: scheduling deletion" << dendl; |
11fdf7f2 TL |
915 | unregister_asok_hook = true; |
916 | std::swap(delete_requested, m_delete_requested); | |
d2e6a577 | 917 | } |
d2e6a577 | 918 | |
11fdf7f2 | 919 | std::swap(resync_requested, m_resync_requested); |
9f95a23c TL |
920 | if (!delete_requested && !resync_requested && m_last_r == -ENOENT && |
921 | ((m_state_builder == nullptr) || | |
922 | (m_state_builder->local_image_id.empty() && | |
923 | m_state_builder->remote_image_id.empty()))) { | |
d2e6a577 | 924 | dout(0) << "mirror image no longer exists" << dendl; |
3efd9988 | 925 | unregister_asok_hook = true; |
d2e6a577 | 926 | m_finished = true; |
7c673cae FG |
927 | } |
928 | } | |
929 | ||
3efd9988 FG |
930 | if (unregister_asok_hook) { |
931 | unregister_admin_socket_hook(); | |
932 | } | |
933 | ||
11fdf7f2 TL |
934 | if (delete_requested || resync_requested) { |
935 | dout(5) << "moving image to trash" << dendl; | |
9f95a23c | 936 | auto ctx = new LambdaContext([this, r](int) { |
11fdf7f2 TL |
937 | handle_shut_down(r); |
938 | }); | |
9f95a23c | 939 | ImageDeleter<I>::trash_move(m_local_io_ctx, m_global_image_id, |
11fdf7f2 TL |
940 | resync_requested, m_threads->work_queue, ctx); |
941 | return; | |
942 | } | |
7c673cae | 943 | |
9f95a23c TL |
944 | if (!m_in_flight_op_tracker.empty()) { |
945 | dout(15) << "waiting for in-flight operations to complete" << dendl; | |
946 | m_in_flight_op_tracker.wait_for_ops(new LambdaContext([this, r](int) { | |
947 | handle_shut_down(r); | |
948 | })); | |
949 | return; | |
950 | } | |
7c673cae | 951 | |
9f95a23c TL |
952 | if (m_local_status_updater->exists(m_global_image_id)) { |
953 | dout(15) << "removing local mirror image status" << dendl; | |
954 | auto ctx = new LambdaContext([this, r](int) { | |
955 | handle_shut_down(r); | |
956 | }); | |
957 | m_local_status_updater->remove_mirror_image_status(m_global_image_id, ctx); | |
958 | return; | |
959 | } | |
960 | ||
961 | if (m_remote_image_peer.mirror_status_updater != nullptr && | |
962 | m_remote_image_peer.mirror_status_updater->exists(m_global_image_id)) { | |
963 | dout(15) << "removing remote mirror image status" << dendl; | |
964 | auto ctx = new LambdaContext([this, r](int) { | |
965 | handle_shut_down(r); | |
966 | }); | |
967 | m_remote_image_peer.mirror_status_updater->remove_mirror_image_status( | |
968 | m_global_image_id, ctx); | |
969 | return; | |
970 | } | |
971 | ||
972 | if (m_state_builder != nullptr) { | |
973 | m_state_builder->destroy(); | |
974 | m_state_builder = nullptr; | |
975 | } | |
976 | ||
977 | dout(10) << "stop complete" << dendl; | |
7c673cae FG |
978 | Context *on_start = nullptr; |
979 | Context *on_stop = nullptr; | |
980 | { | |
9f95a23c | 981 | std::lock_guard locker{m_lock}; |
7c673cae FG |
982 | std::swap(on_start, m_on_start_finish); |
983 | std::swap(on_stop, m_on_stop_finish); | |
984 | m_stop_requested = false; | |
11fdf7f2 | 985 | ceph_assert(m_state == STATE_STOPPING); |
7c673cae FG |
986 | m_state = STATE_STOPPED; |
987 | } | |
988 | ||
989 | if (on_start != nullptr) { | |
11fdf7f2 | 990 | dout(10) << "on start finish complete, r=" << r << dendl; |
7c673cae FG |
991 | on_start->complete(r); |
992 | r = 0; | |
993 | } | |
994 | if (on_stop != nullptr) { | |
11fdf7f2 | 995 | dout(10) << "on stop finish complete, r=" << r << dendl; |
7c673cae FG |
996 | on_stop->complete(r); |
997 | } | |
998 | } | |
999 | ||
1000 | template <typename I> | |
9f95a23c TL |
1001 | void ImageReplayer<I>::handle_replayer_notification() { |
1002 | dout(10) << dendl; | |
1003 | ||
1004 | std::unique_lock locker{m_lock}; | |
1005 | if (m_state != STATE_REPLAYING) { | |
1006 | // might be attempting to shut down | |
1007 | return; | |
1008 | } | |
7c673cae | 1009 | |
7c673cae | 1010 | { |
9f95a23c TL |
1011 | // detect a rename of the local image |
1012 | ceph_assert(m_state_builder != nullptr && | |
1013 | m_state_builder->local_image_ctx != nullptr); | |
1014 | std::shared_lock image_locker{m_state_builder->local_image_ctx->image_lock}; | |
1015 | if (m_local_image_name != m_state_builder->local_image_ctx->name) { | |
1016 | // will re-register with new name after next status update | |
1017 | dout(10) << "image renamed" << dendl; | |
1018 | m_local_image_name = m_state_builder->local_image_ctx->name; | |
7c673cae | 1019 | } |
9f95a23c | 1020 | } |
7c673cae | 1021 | |
9f95a23c TL |
1022 | // replayer cannot be shut down while notification is in-flight |
1023 | ceph_assert(m_replayer != nullptr); | |
1024 | locker.unlock(); | |
1025 | ||
1026 | if (m_replayer->is_resync_requested()) { | |
1027 | dout(10) << "resync requested" << dendl; | |
1028 | m_resync_requested = true; | |
1029 | on_stop_journal_replay(0, "resync requested"); | |
1030 | return; | |
7c673cae FG |
1031 | } |
1032 | ||
9f95a23c TL |
1033 | if (!m_replayer->is_replaying()) { |
1034 | auto error_code = m_replayer->get_error_code(); | |
1035 | auto error_description = m_replayer->get_error_description(); | |
1036 | dout(10) << "replay interrupted: " | |
1037 | << "r=" << error_code << ", " | |
1038 | << "error=" << error_description << dendl; | |
1039 | on_stop_journal_replay(error_code, error_description); | |
1040 | return; | |
7c673cae | 1041 | } |
9f95a23c TL |
1042 | |
1043 | update_mirror_image_status(false, {}); | |
7c673cae FG |
1044 | } |
1045 | ||
1046 | template <typename I> | |
1047 | std::string ImageReplayer<I>::to_string(const State state) { | |
1048 | switch (state) { | |
1049 | case ImageReplayer<I>::STATE_STARTING: | |
1050 | return "Starting"; | |
1051 | case ImageReplayer<I>::STATE_REPLAYING: | |
1052 | return "Replaying"; | |
7c673cae FG |
1053 | case ImageReplayer<I>::STATE_STOPPING: |
1054 | return "Stopping"; | |
1055 | case ImageReplayer<I>::STATE_STOPPED: | |
1056 | return "Stopped"; | |
1057 | default: | |
1058 | break; | |
1059 | } | |
1060 | return "Unknown(" + stringify(state) + ")"; | |
1061 | } | |
1062 | ||
d2e6a577 FG |
1063 | template <typename I> |
1064 | void ImageReplayer<I>::register_admin_socket_hook() { | |
3efd9988 FG |
1065 | ImageReplayerAdminSocketHook<I> *asok_hook; |
1066 | { | |
9f95a23c | 1067 | std::lock_guard locker{m_lock}; |
3efd9988 FG |
1068 | if (m_asok_hook != nullptr) { |
1069 | return; | |
1070 | } | |
7c673cae | 1071 | |
9f95a23c TL |
1072 | dout(15) << "registered asok hook: " << m_image_spec << dendl; |
1073 | asok_hook = new ImageReplayerAdminSocketHook<I>( | |
1074 | g_ceph_context, m_image_spec, this); | |
3efd9988 FG |
1075 | int r = asok_hook->register_commands(); |
1076 | if (r == 0) { | |
1077 | m_asok_hook = asok_hook; | |
1078 | return; | |
1079 | } | |
d2e6a577 | 1080 | derr << "error registering admin socket commands" << dendl; |
d2e6a577 | 1081 | } |
3efd9988 | 1082 | delete asok_hook; |
d2e6a577 FG |
1083 | } |
1084 | ||
1085 | template <typename I> | |
1086 | void ImageReplayer<I>::unregister_admin_socket_hook() { | |
28e407b8 | 1087 | dout(15) << dendl; |
d2e6a577 | 1088 | |
3efd9988 FG |
1089 | AdminSocketHook *asok_hook = nullptr; |
1090 | { | |
9f95a23c | 1091 | std::lock_guard locker{m_lock}; |
3efd9988 FG |
1092 | std::swap(asok_hook, m_asok_hook); |
1093 | } | |
1094 | delete asok_hook; | |
1095 | } | |
1096 | ||
1097 | template <typename I> | |
28e407b8 | 1098 | void ImageReplayer<I>::reregister_admin_socket_hook() { |
9f95a23c TL |
1099 | std::unique_lock locker{m_lock}; |
1100 | if (m_state == STATE_STARTING && m_bootstrap_request != nullptr) { | |
1101 | m_local_image_name = m_bootstrap_request->get_local_image_name(); | |
3efd9988 | 1102 | } |
9f95a23c TL |
1103 | |
1104 | auto image_spec = image_replayer::util::compute_image_spec( | |
1105 | m_local_io_ctx, m_local_image_name); | |
1106 | if (m_asok_hook != nullptr && m_image_spec == image_spec) { | |
1107 | return; | |
1108 | } | |
1109 | ||
1110 | dout(15) << "old_image_spec=" << m_image_spec << ", " | |
1111 | << "new_image_spec=" << image_spec << dendl; | |
1112 | m_image_spec = image_spec; | |
1113 | ||
1114 | if (m_state == STATE_STOPPING || m_state == STATE_STOPPED) { | |
1115 | // no need to re-register if stopping | |
1116 | return; | |
1117 | } | |
1118 | locker.unlock(); | |
1119 | ||
3efd9988 FG |
1120 | unregister_admin_socket_hook(); |
1121 | register_admin_socket_hook(); | |
7c673cae FG |
1122 | } |
1123 | ||
1124 | template <typename I> | |
1125 | std::ostream &operator<<(std::ostream &os, const ImageReplayer<I> &replayer) | |
1126 | { | |
1127 | os << "ImageReplayer: " << &replayer << " [" << replayer.get_local_pool_id() | |
1128 | << "/" << replayer.get_global_image_id() << "]"; | |
1129 | return os; | |
1130 | } | |
1131 | ||
1132 | } // namespace mirror | |
1133 | } // namespace rbd | |
1134 | ||
1135 | template class rbd::mirror::ImageReplayer<librbd::ImageCtx>; |