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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" | |
7c673cae FG |
12 | #include "global/global_context.h" |
13 | #include "journal/Journaler.h" | |
7c673cae FG |
14 | #include "librbd/ExclusiveLock.h" |
15 | #include "librbd/ImageCtx.h" | |
16 | #include "librbd/ImageState.h" | |
17 | #include "librbd/Journal.h" | |
18 | #include "librbd/Operations.h" | |
19 | #include "librbd/Utils.h" | |
f67539c2 | 20 | #include "librbd/asio/ContextWQ.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 | ||
7c673cae FG |
39 | namespace rbd { |
40 | namespace mirror { | |
41 | ||
42 | using librbd::util::create_context_callback; | |
7c673cae FG |
43 | |
44 | template <typename I> | |
45 | std::ostream &operator<<(std::ostream &os, | |
46 | const typename ImageReplayer<I>::State &state); | |
47 | ||
48 | namespace { | |
49 | ||
3efd9988 | 50 | template <typename I> |
7c673cae FG |
51 | class ImageReplayerAdminSocketCommand { |
52 | public: | |
3efd9988 FG |
53 | ImageReplayerAdminSocketCommand(const std::string &desc, |
54 | ImageReplayer<I> *replayer) | |
55 | : desc(desc), replayer(replayer) { | |
56 | } | |
7c673cae | 57 | virtual ~ImageReplayerAdminSocketCommand() {} |
9f95a23c | 58 | virtual int call(Formatter *f) = 0; |
3efd9988 FG |
59 | |
60 | std::string desc; | |
61 | ImageReplayer<I> *replayer; | |
62 | bool registered = false; | |
7c673cae FG |
63 | }; |
64 | ||
65 | template <typename I> | |
3efd9988 | 66 | class StatusCommand : public ImageReplayerAdminSocketCommand<I> { |
7c673cae | 67 | public: |
3efd9988 FG |
68 | explicit StatusCommand(const std::string &desc, ImageReplayer<I> *replayer) |
69 | : ImageReplayerAdminSocketCommand<I>(desc, replayer) { | |
70 | } | |
7c673cae | 71 | |
9f95a23c TL |
72 | int call(Formatter *f) override { |
73 | this->replayer->print_status(f); | |
74 | return 0; | |
7c673cae | 75 | } |
7c673cae FG |
76 | }; |
77 | ||
78 | template <typename I> | |
3efd9988 | 79 | class StartCommand : public ImageReplayerAdminSocketCommand<I> { |
7c673cae | 80 | public: |
3efd9988 FG |
81 | explicit StartCommand(const std::string &desc, ImageReplayer<I> *replayer) |
82 | : ImageReplayerAdminSocketCommand<I>(desc, replayer) { | |
83 | } | |
7c673cae | 84 | |
9f95a23c | 85 | int call(Formatter *f) override { |
3efd9988 | 86 | this->replayer->start(nullptr, true); |
9f95a23c | 87 | return 0; |
7c673cae | 88 | } |
7c673cae FG |
89 | }; |
90 | ||
91 | template <typename I> | |
3efd9988 | 92 | class StopCommand : public ImageReplayerAdminSocketCommand<I> { |
7c673cae | 93 | public: |
3efd9988 FG |
94 | explicit StopCommand(const std::string &desc, ImageReplayer<I> *replayer) |
95 | : ImageReplayerAdminSocketCommand<I>(desc, replayer) { | |
96 | } | |
7c673cae | 97 | |
9f95a23c | 98 | int call(Formatter *f) override { |
3efd9988 | 99 | this->replayer->stop(nullptr, true); |
9f95a23c | 100 | return 0; |
7c673cae | 101 | } |
7c673cae FG |
102 | }; |
103 | ||
104 | template <typename I> | |
3efd9988 | 105 | class RestartCommand : public ImageReplayerAdminSocketCommand<I> { |
7c673cae | 106 | public: |
3efd9988 FG |
107 | explicit RestartCommand(const std::string &desc, ImageReplayer<I> *replayer) |
108 | : ImageReplayerAdminSocketCommand<I>(desc, replayer) { | |
109 | } | |
7c673cae | 110 | |
9f95a23c | 111 | int call(Formatter *f) override { |
3efd9988 | 112 | this->replayer->restart(); |
9f95a23c | 113 | return 0; |
7c673cae | 114 | } |
7c673cae FG |
115 | }; |
116 | ||
117 | template <typename I> | |
3efd9988 | 118 | class FlushCommand : public ImageReplayerAdminSocketCommand<I> { |
7c673cae | 119 | public: |
3efd9988 FG |
120 | explicit FlushCommand(const std::string &desc, ImageReplayer<I> *replayer) |
121 | : ImageReplayerAdminSocketCommand<I>(desc, replayer) { | |
122 | } | |
7c673cae | 123 | |
9f95a23c | 124 | int call(Formatter *f) override { |
28e407b8 | 125 | this->replayer->flush(); |
9f95a23c | 126 | return 0; |
7c673cae | 127 | } |
7c673cae FG |
128 | }; |
129 | ||
130 | template <typename I> | |
131 | class ImageReplayerAdminSocketHook : public AdminSocketHook { | |
132 | public: | |
133 | ImageReplayerAdminSocketHook(CephContext *cct, const std::string &name, | |
31f18b77 | 134 | ImageReplayer<I> *replayer) |
3efd9988 FG |
135 | : admin_socket(cct->get_admin_socket()), |
136 | commands{{"rbd mirror flush " + name, | |
137 | new FlushCommand<I>("flush rbd mirror " + name, replayer)}, | |
138 | {"rbd mirror restart " + name, | |
139 | new RestartCommand<I>("restart rbd mirror " + name, replayer)}, | |
140 | {"rbd mirror start " + name, | |
141 | new StartCommand<I>("start rbd mirror " + name, replayer)}, | |
142 | {"rbd mirror status " + name, | |
143 | new StatusCommand<I>("get status for rbd mirror " + name, replayer)}, | |
144 | {"rbd mirror stop " + name, | |
145 | new StopCommand<I>("stop rbd mirror " + name, replayer)}} { | |
d2e6a577 FG |
146 | } |
147 | ||
148 | int register_commands() { | |
3efd9988 | 149 | for (auto &it : commands) { |
9f95a23c | 150 | int r = admin_socket->register_command(it.first, this, |
3efd9988 FG |
151 | it.second->desc); |
152 | if (r < 0) { | |
153 | return r; | |
154 | } | |
155 | it.second->registered = true; | |
7c673cae | 156 | } |
d2e6a577 | 157 | return 0; |
7c673cae FG |
158 | } |
159 | ||
160 | ~ImageReplayerAdminSocketHook() override { | |
9f95a23c | 161 | admin_socket->unregister_commands(this); |
3efd9988 | 162 | for (auto &it : commands) { |
3efd9988 | 163 | delete it.second; |
7c673cae | 164 | } |
31f18b77 | 165 | commands.clear(); |
7c673cae FG |
166 | } |
167 | ||
9f95a23c TL |
168 | int call(std::string_view command, const cmdmap_t& cmdmap, |
169 | Formatter *f, | |
170 | std::ostream& errss, | |
171 | bufferlist& out) override { | |
3efd9988 | 172 | auto i = commands.find(command); |
11fdf7f2 | 173 | ceph_assert(i != commands.end()); |
9f95a23c | 174 | return i->second->call(f); |
7c673cae FG |
175 | } |
176 | ||
177 | private: | |
11fdf7f2 TL |
178 | typedef std::map<std::string, ImageReplayerAdminSocketCommand<I>*, |
179 | std::less<>> Commands; | |
7c673cae FG |
180 | |
181 | AdminSocket *admin_socket; | |
182 | Commands commands; | |
183 | }; | |
184 | ||
7c673cae FG |
185 | } // anonymous namespace |
186 | ||
187 | template <typename I> | |
188 | void ImageReplayer<I>::BootstrapProgressContext::update_progress( | |
189 | const std::string &description, bool flush) | |
190 | { | |
191 | const std::string desc = "bootstrapping, " + description; | |
192 | replayer->set_state_description(0, desc); | |
193 | if (flush) { | |
194 | replayer->update_mirror_image_status(false, boost::none); | |
195 | } | |
196 | } | |
197 | ||
198 | template <typename I> | |
9f95a23c TL |
199 | struct ImageReplayer<I>::ReplayerListener |
200 | : public image_replayer::ReplayerListener { | |
201 | ImageReplayer<I>* image_replayer; | |
202 | ||
203 | ReplayerListener(ImageReplayer<I>* image_replayer) | |
204 | : image_replayer(image_replayer) { | |
205 | } | |
206 | ||
207 | void handle_notification() override { | |
208 | image_replayer->handle_replayer_notification(); | |
209 | } | |
210 | }; | |
7c673cae FG |
211 | |
212 | template <typename I> | |
9f95a23c TL |
213 | ImageReplayer<I>::ImageReplayer( |
214 | librados::IoCtx &local_io_ctx, const std::string &local_mirror_uuid, | |
215 | const std::string &global_image_id, Threads<I> *threads, | |
216 | InstanceWatcher<I> *instance_watcher, | |
217 | MirrorStatusUpdater<I>* local_status_updater, | |
218 | journal::CacheManagerHandler *cache_manager_handler, | |
219 | PoolMetaCache* pool_meta_cache) : | |
220 | m_local_io_ctx(local_io_ctx), m_local_mirror_uuid(local_mirror_uuid), | |
221 | m_global_image_id(global_image_id), m_threads(threads), | |
31f18b77 | 222 | m_instance_watcher(instance_watcher), |
9f95a23c TL |
223 | m_local_status_updater(local_status_updater), |
224 | m_cache_manager_handler(cache_manager_handler), | |
225 | m_pool_meta_cache(pool_meta_cache), | |
226 | m_local_image_name(global_image_id), | |
227 | m_lock(ceph::make_mutex("rbd::mirror::ImageReplayer " + | |
228 | stringify(local_io_ctx.get_id()) + " " + global_image_id)), | |
7c673cae | 229 | m_progress_cxt(this), |
9f95a23c | 230 | m_replayer_listener(new ReplayerListener(this)) |
7c673cae FG |
231 | { |
232 | // Register asok commands using a temporary "remote_pool_name/global_image_id" | |
233 | // name. When the image name becomes known on start the asok commands will be | |
234 | // re-registered using "remote_pool_name/remote_image_name" name. | |
235 | ||
9f95a23c TL |
236 | m_image_spec = image_replayer::util::compute_image_spec( |
237 | local_io_ctx, global_image_id); | |
d2e6a577 | 238 | register_admin_socket_hook(); |
7c673cae FG |
239 | } |
240 | ||
241 | template <typename I> | |
242 | ImageReplayer<I>::~ImageReplayer() | |
243 | { | |
d2e6a577 | 244 | unregister_admin_socket_hook(); |
9f95a23c | 245 | ceph_assert(m_state_builder == nullptr); |
11fdf7f2 TL |
246 | ceph_assert(m_on_start_finish == nullptr); |
247 | ceph_assert(m_on_stop_finish == nullptr); | |
248 | ceph_assert(m_bootstrap_request == nullptr); | |
1911f103 | 249 | ceph_assert(m_update_status_task == nullptr); |
9f95a23c | 250 | delete m_replayer_listener; |
7c673cae FG |
251 | } |
252 | ||
c07f9fc5 FG |
253 | template <typename I> |
254 | image_replayer::HealthState ImageReplayer<I>::get_health_state() const { | |
9f95a23c | 255 | std::lock_guard locker{m_lock}; |
c07f9fc5 FG |
256 | |
257 | if (!m_mirror_image_status_state) { | |
258 | return image_replayer::HEALTH_STATE_OK; | |
259 | } else if (*m_mirror_image_status_state == | |
260 | cls::rbd::MIRROR_IMAGE_STATUS_STATE_SYNCING || | |
261 | *m_mirror_image_status_state == | |
262 | cls::rbd::MIRROR_IMAGE_STATUS_STATE_UNKNOWN) { | |
263 | return image_replayer::HEALTH_STATE_WARNING; | |
264 | } | |
265 | return image_replayer::HEALTH_STATE_ERROR; | |
266 | } | |
267 | ||
7c673cae | 268 | template <typename I> |
9f95a23c TL |
269 | void ImageReplayer<I>::add_peer(const Peer<I>& peer) { |
270 | dout(10) << "peer=" << peer << dendl; | |
271 | ||
272 | std::lock_guard locker{m_lock}; | |
273 | auto it = m_peers.find(peer); | |
d2e6a577 | 274 | if (it == m_peers.end()) { |
9f95a23c | 275 | m_peers.insert(peer); |
7c673cae FG |
276 | } |
277 | } | |
278 | ||
7c673cae FG |
279 | template <typename I> |
280 | void ImageReplayer<I>::set_state_description(int r, const std::string &desc) { | |
9f95a23c | 281 | dout(10) << "r=" << r << ", desc=" << desc << dendl; |
7c673cae | 282 | |
9f95a23c | 283 | std::lock_guard l{m_lock}; |
7c673cae FG |
284 | m_last_r = r; |
285 | m_state_desc = desc; | |
286 | } | |
287 | ||
288 | template <typename I> | |
e306af50 | 289 | void ImageReplayer<I>::start(Context *on_finish, bool manual, bool restart) |
7c673cae | 290 | { |
11fdf7f2 | 291 | dout(10) << "on_finish=" << on_finish << dendl; |
7c673cae FG |
292 | |
293 | int r = 0; | |
294 | { | |
9f95a23c | 295 | std::lock_guard locker{m_lock}; |
7c673cae FG |
296 | if (!is_stopped_()) { |
297 | derr << "already running" << dendl; | |
298 | r = -EINVAL; | |
299 | } else if (m_manual_stop && !manual) { | |
300 | dout(5) << "stopped manually, ignoring start without manual flag" | |
301 | << dendl; | |
302 | r = -EPERM; | |
e306af50 TL |
303 | } else if (restart && !m_restart_requested) { |
304 | dout(10) << "canceled restart" << dendl; | |
305 | r = -ECANCELED; | |
7c673cae FG |
306 | } else { |
307 | m_state = STATE_STARTING; | |
308 | m_last_r = 0; | |
309 | m_state_desc.clear(); | |
310 | m_manual_stop = false; | |
d2e6a577 | 311 | m_delete_requested = false; |
e306af50 | 312 | m_restart_requested = false; |
7c673cae FG |
313 | |
314 | if (on_finish != nullptr) { | |
11fdf7f2 | 315 | ceph_assert(m_on_start_finish == nullptr); |
7c673cae FG |
316 | m_on_start_finish = on_finish; |
317 | } | |
11fdf7f2 | 318 | ceph_assert(m_on_stop_finish == nullptr); |
7c673cae FG |
319 | } |
320 | } | |
321 | ||
322 | if (r < 0) { | |
323 | if (on_finish) { | |
324 | on_finish->complete(r); | |
325 | } | |
326 | return; | |
327 | } | |
328 | ||
9f95a23c | 329 | bootstrap(); |
7c673cae FG |
330 | } |
331 | ||
332 | template <typename I> | |
9f95a23c | 333 | void ImageReplayer<I>::bootstrap() { |
11fdf7f2 | 334 | dout(10) << dendl; |
7c673cae | 335 | |
9f95a23c | 336 | std::unique_lock locker{m_lock}; |
b32b8144 | 337 | if (m_peers.empty()) { |
9f95a23c TL |
338 | locker.unlock(); |
339 | ||
340 | dout(5) << "no peer clusters" << dendl; | |
341 | on_start_fail(-ENOENT, "no peer clusters"); | |
b32b8144 FG |
342 | return; |
343 | } | |
7c673cae | 344 | |
d2e6a577 | 345 | // TODO need to support multiple remote images |
11fdf7f2 | 346 | ceph_assert(!m_peers.empty()); |
9f95a23c | 347 | m_remote_image_peer = *m_peers.begin(); |
7c673cae | 348 | |
9f95a23c | 349 | if (on_start_interrupted(m_lock)) { |
b32b8144 FG |
350 | return; |
351 | } | |
7c673cae | 352 | |
9f95a23c TL |
353 | ceph_assert(m_state_builder == nullptr); |
354 | auto ctx = create_context_callback< | |
11fdf7f2 | 355 | ImageReplayer, &ImageReplayer<I>::handle_bootstrap>(this); |
9f95a23c TL |
356 | auto request = image_replayer::BootstrapRequest<I>::create( |
357 | m_threads, m_local_io_ctx, m_remote_image_peer.io_ctx, m_instance_watcher, | |
358 | m_global_image_id, m_local_mirror_uuid, | |
359 | m_remote_image_peer.remote_pool_meta, m_cache_manager_handler, | |
360 | m_pool_meta_cache, &m_progress_cxt, &m_state_builder, &m_resync_requested, | |
361 | ctx); | |
7c673cae | 362 | |
9f95a23c TL |
363 | request->get(); |
364 | m_bootstrap_request = request; | |
365 | locker.unlock(); | |
7c673cae | 366 | |
9f95a23c | 367 | update_mirror_image_status(false, boost::none); |
7c673cae FG |
368 | request->send(); |
369 | } | |
370 | ||
371 | template <typename I> | |
372 | void ImageReplayer<I>::handle_bootstrap(int r) { | |
11fdf7f2 | 373 | dout(10) << "r=" << r << dendl; |
7c673cae | 374 | { |
9f95a23c | 375 | std::lock_guard locker{m_lock}; |
7c673cae FG |
376 | m_bootstrap_request->put(); |
377 | m_bootstrap_request = nullptr; | |
7c673cae FG |
378 | } |
379 | ||
11fdf7f2 TL |
380 | if (on_start_interrupted()) { |
381 | return; | |
9f95a23c TL |
382 | } else if (r == -ENOMSG) { |
383 | dout(5) << "local image is primary" << dendl; | |
384 | on_start_fail(0, "local image is primary"); | |
385 | return; | |
11fdf7f2 | 386 | } else if (r == -EREMOTEIO) { |
c07f9fc5 FG |
387 | dout(5) << "remote image is non-primary" << dendl; |
388 | on_start_fail(-EREMOTEIO, "remote image is non-primary"); | |
7c673cae FG |
389 | return; |
390 | } else if (r == -EEXIST) { | |
7c673cae FG |
391 | on_start_fail(r, "split-brain detected"); |
392 | return; | |
9f95a23c TL |
393 | } else if (r == -ENOLINK) { |
394 | m_delete_requested = true; | |
395 | on_start_fail(0, "remote image no longer exists"); | |
396 | return; | |
7c673cae FG |
397 | } else if (r < 0) { |
398 | on_start_fail(r, "error bootstrapping replay"); | |
399 | return; | |
d2e6a577 FG |
400 | } else if (m_resync_requested) { |
401 | on_start_fail(0, "resync requested"); | |
402 | return; | |
7c673cae FG |
403 | } |
404 | ||
9f95a23c | 405 | start_replay(); |
7c673cae FG |
406 | } |
407 | ||
408 | template <typename I> | |
9f95a23c | 409 | void ImageReplayer<I>::start_replay() { |
11fdf7f2 | 410 | dout(10) << dendl; |
7c673cae | 411 | |
9f95a23c TL |
412 | std::unique_lock locker{m_lock}; |
413 | ceph_assert(m_replayer == nullptr); | |
414 | m_replayer = m_state_builder->create_replayer(m_threads, m_instance_watcher, | |
415 | m_local_mirror_uuid, | |
416 | m_pool_meta_cache, | |
417 | m_replayer_listener); | |
418 | ||
419 | auto ctx = create_context_callback< | |
420 | ImageReplayer<I>, &ImageReplayer<I>::handle_start_replay>(this); | |
421 | m_replayer->init(ctx); | |
7c673cae FG |
422 | } |
423 | ||
424 | template <typename I> | |
9f95a23c | 425 | void ImageReplayer<I>::handle_start_replay(int r) { |
11fdf7f2 | 426 | dout(10) << "r=" << r << dendl; |
7c673cae | 427 | |
11fdf7f2 TL |
428 | if (on_start_interrupted()) { |
429 | return; | |
430 | } else if (r < 0) { | |
9f95a23c TL |
431 | std::string error_description = m_replayer->get_error_description(); |
432 | if (r == -ENOTCONN && m_replayer->is_resync_requested()) { | |
433 | std::unique_lock locker{m_lock}; | |
d2e6a577 | 434 | m_resync_requested = true; |
7c673cae | 435 | } |
7c673cae | 436 | |
9f95a23c TL |
437 | // shut down not required if init failed |
438 | m_replayer->destroy(); | |
439 | m_replayer = nullptr; | |
7c673cae | 440 | |
9f95a23c TL |
441 | derr << "error starting replay: " << cpp_strerror(r) << dendl; |
442 | on_start_fail(r, error_description); | |
7c673cae FG |
443 | return; |
444 | } | |
445 | ||
9f95a23c | 446 | Context *on_finish = nullptr; |
7c673cae | 447 | { |
9f95a23c | 448 | std::unique_lock locker{m_lock}; |
11fdf7f2 | 449 | ceph_assert(m_state == STATE_STARTING); |
7c673cae FG |
450 | m_state = STATE_REPLAYING; |
451 | std::swap(m_on_start_finish, on_finish); | |
1911f103 TL |
452 | |
453 | std::unique_lock timer_locker{m_threads->timer_lock}; | |
454 | schedule_update_mirror_image_replay_status(); | |
7c673cae FG |
455 | } |
456 | ||
7c673cae | 457 | update_mirror_image_status(true, boost::none); |
7c673cae | 458 | if (on_replay_interrupted()) { |
9f95a23c TL |
459 | if (on_finish != nullptr) { |
460 | on_finish->complete(r); | |
461 | } | |
7c673cae FG |
462 | return; |
463 | } | |
464 | ||
11fdf7f2 | 465 | dout(10) << "start succeeded" << dendl; |
d2e6a577 | 466 | if (on_finish != nullptr) { |
11fdf7f2 | 467 | dout(10) << "on finish complete, r=" << r << dendl; |
d2e6a577 FG |
468 | on_finish->complete(r); |
469 | } | |
7c673cae FG |
470 | } |
471 | ||
472 | template <typename I> | |
473 | void ImageReplayer<I>::on_start_fail(int r, const std::string &desc) | |
474 | { | |
9f95a23c TL |
475 | dout(10) << "r=" << r << ", desc=" << desc << dendl; |
476 | Context *ctx = new LambdaContext([this, r, desc](int _r) { | |
7c673cae | 477 | { |
9f95a23c | 478 | std::lock_guard locker{m_lock}; |
11fdf7f2 | 479 | ceph_assert(m_state == STATE_STARTING); |
7c673cae | 480 | m_state = STATE_STOPPING; |
d2e6a577 | 481 | if (r < 0 && r != -ECANCELED && r != -EREMOTEIO && r != -ENOENT) { |
7c673cae FG |
482 | derr << "start failed: " << cpp_strerror(r) << dendl; |
483 | } else { | |
11fdf7f2 | 484 | dout(10) << "start canceled" << dendl; |
7c673cae FG |
485 | } |
486 | } | |
487 | ||
488 | set_state_description(r, desc); | |
9f95a23c | 489 | update_mirror_image_status(false, boost::none); |
7c673cae FG |
490 | shut_down(r); |
491 | }); | |
492 | m_threads->work_queue->queue(ctx, 0); | |
493 | } | |
494 | ||
495 | template <typename I> | |
11fdf7f2 | 496 | bool ImageReplayer<I>::on_start_interrupted() { |
9f95a23c | 497 | std::lock_guard locker{m_lock}; |
11fdf7f2 TL |
498 | return on_start_interrupted(m_lock); |
499 | } | |
500 | ||
501 | template <typename I> | |
9f95a23c TL |
502 | bool ImageReplayer<I>::on_start_interrupted(ceph::mutex& lock) { |
503 | ceph_assert(ceph_mutex_is_locked(m_lock)); | |
11fdf7f2 TL |
504 | ceph_assert(m_state == STATE_STARTING); |
505 | if (!m_stop_requested) { | |
7c673cae FG |
506 | return false; |
507 | } | |
508 | ||
11fdf7f2 | 509 | on_start_fail(-ECANCELED, ""); |
7c673cae FG |
510 | return true; |
511 | } | |
512 | ||
513 | template <typename I> | |
e306af50 | 514 | void ImageReplayer<I>::stop(Context *on_finish, bool manual, bool restart) |
7c673cae | 515 | { |
11fdf7f2 | 516 | dout(10) << "on_finish=" << on_finish << ", manual=" << manual |
e306af50 | 517 | << ", restart=" << restart << dendl; |
7c673cae FG |
518 | |
519 | image_replayer::BootstrapRequest<I> *bootstrap_request = nullptr; | |
520 | bool shut_down_replay = false; | |
521 | bool running = true; | |
7c673cae | 522 | { |
9f95a23c | 523 | std::lock_guard locker{m_lock}; |
7c673cae | 524 | |
e306af50 TL |
525 | if (restart) { |
526 | m_restart_requested = true; | |
527 | } | |
528 | ||
7c673cae FG |
529 | if (!is_running_()) { |
530 | running = false; | |
e306af50 TL |
531 | if (!restart && m_restart_requested) { |
532 | dout(10) << "canceling restart" << dendl; | |
533 | m_restart_requested = false; | |
534 | } | |
7c673cae FG |
535 | } else { |
536 | if (!is_stopped_()) { | |
537 | if (m_state == STATE_STARTING) { | |
11fdf7f2 TL |
538 | dout(10) << "canceling start" << dendl; |
539 | if (m_bootstrap_request != nullptr) { | |
7c673cae FG |
540 | bootstrap_request = m_bootstrap_request; |
541 | bootstrap_request->get(); | |
542 | } | |
543 | } else { | |
11fdf7f2 | 544 | dout(10) << "interrupting replay" << dendl; |
7c673cae FG |
545 | shut_down_replay = true; |
546 | } | |
547 | ||
11fdf7f2 | 548 | ceph_assert(m_on_stop_finish == nullptr); |
7c673cae FG |
549 | std::swap(m_on_stop_finish, on_finish); |
550 | m_stop_requested = true; | |
551 | m_manual_stop = manual; | |
7c673cae FG |
552 | } |
553 | } | |
554 | } | |
555 | ||
556 | // avoid holding lock since bootstrap request will update status | |
557 | if (bootstrap_request != nullptr) { | |
11fdf7f2 | 558 | dout(10) << "canceling bootstrap" << dendl; |
7c673cae FG |
559 | bootstrap_request->cancel(); |
560 | bootstrap_request->put(); | |
561 | } | |
562 | ||
7c673cae FG |
563 | if (!running) { |
564 | dout(20) << "not running" << dendl; | |
565 | if (on_finish) { | |
566 | on_finish->complete(-EINVAL); | |
567 | } | |
568 | return; | |
569 | } | |
570 | ||
571 | if (shut_down_replay) { | |
e306af50 | 572 | on_stop_journal_replay(); |
7c673cae FG |
573 | } else if (on_finish != nullptr) { |
574 | on_finish->complete(0); | |
575 | } | |
576 | } | |
577 | ||
578 | template <typename I> | |
579 | void ImageReplayer<I>::on_stop_journal_replay(int r, const std::string &desc) | |
580 | { | |
11fdf7f2 | 581 | dout(10) << dendl; |
7c673cae FG |
582 | |
583 | { | |
9f95a23c | 584 | std::lock_guard locker{m_lock}; |
7c673cae FG |
585 | if (m_state != STATE_REPLAYING) { |
586 | // might be invoked multiple times while stopping | |
587 | return; | |
588 | } | |
9f95a23c | 589 | |
7c673cae FG |
590 | m_stop_requested = true; |
591 | m_state = STATE_STOPPING; | |
592 | } | |
593 | ||
1911f103 | 594 | cancel_update_mirror_image_replay_status(); |
7c673cae | 595 | set_state_description(r, desc); |
a8e16298 | 596 | update_mirror_image_status(true, boost::none); |
7c673cae FG |
597 | shut_down(0); |
598 | } | |
599 | ||
7c673cae FG |
600 | template <typename I> |
601 | void ImageReplayer<I>::restart(Context *on_finish) | |
602 | { | |
e306af50 TL |
603 | { |
604 | std::lock_guard locker{m_lock}; | |
605 | m_restart_requested = true; | |
606 | } | |
607 | ||
9f95a23c | 608 | auto ctx = new LambdaContext( |
7c673cae FG |
609 | [this, on_finish](int r) { |
610 | if (r < 0) { | |
611 | // Try start anyway. | |
612 | } | |
e306af50 | 613 | start(on_finish, true, true); |
7c673cae | 614 | }); |
e306af50 | 615 | stop(ctx, false, true); |
7c673cae FG |
616 | } |
617 | ||
618 | template <typename I> | |
81eedcae | 619 | void ImageReplayer<I>::flush() |
7c673cae | 620 | { |
81eedcae | 621 | C_SaferCond ctx; |
7c673cae | 622 | |
9f95a23c TL |
623 | { |
624 | std::unique_lock locker{m_lock}; | |
625 | if (m_state != STATE_REPLAYING) { | |
626 | return; | |
627 | } | |
7c673cae | 628 | |
9f95a23c TL |
629 | dout(10) << dendl; |
630 | ceph_assert(m_replayer != nullptr); | |
631 | m_replayer->flush(&ctx); | |
81eedcae TL |
632 | } |
633 | ||
9f95a23c TL |
634 | int r = ctx.wait(); |
635 | if (r >= 0) { | |
636 | update_mirror_image_status(false, boost::none); | |
7c673cae | 637 | } |
7c673cae FG |
638 | } |
639 | ||
640 | template <typename I> | |
641 | bool ImageReplayer<I>::on_replay_interrupted() | |
642 | { | |
643 | bool shut_down; | |
644 | { | |
9f95a23c | 645 | std::lock_guard locker{m_lock}; |
7c673cae FG |
646 | shut_down = m_stop_requested; |
647 | } | |
648 | ||
649 | if (shut_down) { | |
650 | on_stop_journal_replay(); | |
651 | } | |
652 | return shut_down; | |
653 | } | |
654 | ||
655 | template <typename I> | |
9f95a23c | 656 | void ImageReplayer<I>::print_status(Formatter *f) |
7c673cae | 657 | { |
11fdf7f2 | 658 | dout(10) << dendl; |
7c673cae | 659 | |
9f95a23c | 660 | std::lock_guard l{m_lock}; |
7c673cae | 661 | |
9f95a23c TL |
662 | f->open_object_section("image_replayer"); |
663 | f->dump_string("name", m_image_spec); | |
664 | f->dump_string("state", to_string(m_state)); | |
665 | f->close_section(); | |
7c673cae FG |
666 | } |
667 | ||
1911f103 TL |
668 | template <typename I> |
669 | void ImageReplayer<I>::schedule_update_mirror_image_replay_status() { | |
670 | ceph_assert(ceph_mutex_is_locked_by_me(m_lock)); | |
671 | ceph_assert(ceph_mutex_is_locked_by_me(m_threads->timer_lock)); | |
672 | if (m_state != STATE_REPLAYING) { | |
673 | return; | |
674 | } | |
675 | ||
676 | dout(10) << dendl; | |
677 | ||
678 | // periodically update the replaying status even if nothing changes | |
679 | // so that we can adjust our performance stats | |
680 | ceph_assert(m_update_status_task == nullptr); | |
681 | m_update_status_task = create_context_callback< | |
682 | ImageReplayer<I>, | |
683 | &ImageReplayer<I>::handle_update_mirror_image_replay_status>(this); | |
684 | m_threads->timer->add_event_after(10, m_update_status_task); | |
685 | } | |
686 | ||
687 | template <typename I> | |
688 | void ImageReplayer<I>::handle_update_mirror_image_replay_status(int r) { | |
689 | dout(10) << dendl; | |
690 | ||
cd265ab1 TL |
691 | ceph_assert(ceph_mutex_is_locked_by_me(m_threads->timer_lock)); |
692 | ||
693 | ceph_assert(m_update_status_task != nullptr); | |
694 | m_update_status_task = nullptr; | |
695 | ||
1911f103 TL |
696 | auto ctx = new LambdaContext([this](int) { |
697 | update_mirror_image_status(false, boost::none); | |
698 | ||
cd265ab1 TL |
699 | std::unique_lock locker{m_lock}; |
700 | std::unique_lock timer_locker{m_threads->timer_lock}; | |
1911f103 | 701 | |
cd265ab1 | 702 | schedule_update_mirror_image_replay_status(); |
1911f103 TL |
703 | m_in_flight_op_tracker.finish_op(); |
704 | }); | |
705 | ||
706 | m_in_flight_op_tracker.start_op(); | |
707 | m_threads->work_queue->queue(ctx, 0); | |
708 | } | |
709 | ||
710 | template <typename I> | |
711 | void ImageReplayer<I>::cancel_update_mirror_image_replay_status() { | |
712 | std::unique_lock timer_locker{m_threads->timer_lock}; | |
713 | if (m_update_status_task != nullptr) { | |
714 | dout(10) << dendl; | |
715 | ||
716 | if (m_threads->timer->cancel_event(m_update_status_task)) { | |
717 | m_update_status_task = nullptr; | |
718 | } | |
719 | } | |
720 | } | |
721 | ||
7c673cae | 722 | template <typename I> |
9f95a23c TL |
723 | void ImageReplayer<I>::update_mirror_image_status( |
724 | bool force, const OptionalState &opt_state) { | |
725 | dout(15) << "force=" << force << ", " | |
726 | << "state=" << opt_state << dendl; | |
7c673cae FG |
727 | |
728 | { | |
9f95a23c TL |
729 | std::lock_guard locker{m_lock}; |
730 | if (!force && !is_stopped_() && !is_running_()) { | |
731 | dout(15) << "shut down in-progress: ignoring update" << dendl; | |
28e407b8 | 732 | return; |
28e407b8 AA |
733 | } |
734 | } | |
735 | ||
9f95a23c TL |
736 | m_in_flight_op_tracker.start_op(); |
737 | auto ctx = new LambdaContext( | |
738 | [this, force, opt_state](int r) { | |
739 | set_mirror_image_status_update(force, opt_state); | |
11fdf7f2 TL |
740 | }); |
741 | m_threads->work_queue->queue(ctx, 0); | |
7c673cae FG |
742 | } |
743 | ||
744 | template <typename I> | |
9f95a23c TL |
745 | void ImageReplayer<I>::set_mirror_image_status_update( |
746 | bool force, const OptionalState &opt_state) { | |
747 | dout(15) << "force=" << force << ", " | |
748 | << "state=" << opt_state << dendl; | |
7c673cae | 749 | |
28e407b8 AA |
750 | reregister_admin_socket_hook(); |
751 | ||
7c673cae FG |
752 | State state; |
753 | std::string state_desc; | |
754 | int last_r; | |
7c673cae | 755 | bool stopping_replay; |
c07f9fc5 | 756 | |
9f95a23c TL |
757 | auto mirror_image_status_state = boost::make_optional( |
758 | false, cls::rbd::MIRROR_IMAGE_STATUS_STATE_UNKNOWN); | |
c07f9fc5 | 759 | image_replayer::BootstrapRequest<I>* bootstrap_request = nullptr; |
7c673cae | 760 | { |
9f95a23c | 761 | std::lock_guard locker{m_lock}; |
7c673cae FG |
762 | state = m_state; |
763 | state_desc = m_state_desc; | |
c07f9fc5 | 764 | mirror_image_status_state = m_mirror_image_status_state; |
7c673cae | 765 | last_r = m_last_r; |
9f95a23c | 766 | stopping_replay = (m_replayer != nullptr); |
c07f9fc5 FG |
767 | |
768 | if (m_bootstrap_request != nullptr) { | |
769 | bootstrap_request = m_bootstrap_request; | |
770 | bootstrap_request->get(); | |
771 | } | |
772 | } | |
773 | ||
774 | bool syncing = false; | |
775 | if (bootstrap_request != nullptr) { | |
776 | syncing = bootstrap_request->is_syncing(); | |
777 | bootstrap_request->put(); | |
778 | bootstrap_request = nullptr; | |
7c673cae FG |
779 | } |
780 | ||
781 | if (opt_state) { | |
782 | state = *opt_state; | |
783 | } | |
784 | ||
9f95a23c | 785 | cls::rbd::MirrorImageSiteStatus status; |
7c673cae FG |
786 | status.up = true; |
787 | switch (state) { | |
788 | case STATE_STARTING: | |
c07f9fc5 | 789 | if (syncing) { |
7c673cae FG |
790 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_SYNCING; |
791 | status.description = state_desc.empty() ? "syncing" : state_desc; | |
c07f9fc5 | 792 | mirror_image_status_state = status.state; |
7c673cae FG |
793 | } else { |
794 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_STARTING_REPLAY; | |
795 | status.description = "starting replay"; | |
796 | } | |
797 | break; | |
798 | case STATE_REPLAYING: | |
7c673cae FG |
799 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_REPLAYING; |
800 | { | |
9f95a23c TL |
801 | std::string desc; |
802 | auto on_req_finish = new LambdaContext( | |
803 | [this, force](int r) { | |
11fdf7f2 | 804 | dout(15) << "replay status ready: r=" << r << dendl; |
7c673cae | 805 | if (r >= 0) { |
9f95a23c | 806 | set_mirror_image_status_update(force, boost::none); |
7c673cae | 807 | } else if (r == -EAGAIN) { |
9f95a23c | 808 | m_in_flight_op_tracker.finish_op(); |
7c673cae FG |
809 | } |
810 | }); | |
811 | ||
9f95a23c TL |
812 | ceph_assert(m_replayer != nullptr); |
813 | if (!m_replayer->get_replay_status(&desc, on_req_finish)) { | |
11fdf7f2 | 814 | dout(15) << "waiting for replay status" << dendl; |
7c673cae FG |
815 | return; |
816 | } | |
9f95a23c | 817 | |
7c673cae | 818 | status.description = "replaying, " + desc; |
11fdf7f2 TL |
819 | mirror_image_status_state = boost::make_optional( |
820 | false, cls::rbd::MIRROR_IMAGE_STATUS_STATE_UNKNOWN); | |
7c673cae FG |
821 | } |
822 | break; | |
823 | case STATE_STOPPING: | |
824 | if (stopping_replay) { | |
825 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_STOPPING_REPLAY; | |
a8e16298 | 826 | status.description = state_desc.empty() ? "stopping replay" : state_desc; |
7c673cae FG |
827 | break; |
828 | } | |
829 | // FALLTHROUGH | |
830 | case STATE_STOPPED: | |
c07f9fc5 FG |
831 | if (last_r == -EREMOTEIO) { |
832 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_UNKNOWN; | |
833 | status.description = state_desc; | |
834 | mirror_image_status_state = status.state; | |
9f95a23c | 835 | } else if (last_r < 0 && last_r != -ECANCELED) { |
7c673cae FG |
836 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_ERROR; |
837 | status.description = state_desc; | |
c07f9fc5 | 838 | mirror_image_status_state = status.state; |
7c673cae FG |
839 | } else { |
840 | status.state = cls::rbd::MIRROR_IMAGE_STATUS_STATE_STOPPED; | |
841 | status.description = state_desc.empty() ? "stopped" : state_desc; | |
c07f9fc5 | 842 | mirror_image_status_state = boost::none; |
7c673cae FG |
843 | } |
844 | break; | |
845 | default: | |
11fdf7f2 | 846 | ceph_assert(!"invalid state"); |
7c673cae FG |
847 | } |
848 | ||
c07f9fc5 | 849 | { |
9f95a23c | 850 | std::lock_guard locker{m_lock}; |
c07f9fc5 FG |
851 | m_mirror_image_status_state = mirror_image_status_state; |
852 | } | |
853 | ||
854 | // prevent the status from ping-ponging when failed replays are restarted | |
855 | if (mirror_image_status_state && | |
856 | *mirror_image_status_state == cls::rbd::MIRROR_IMAGE_STATUS_STATE_ERROR) { | |
857 | status.state = *mirror_image_status_state; | |
858 | } | |
859 | ||
11fdf7f2 | 860 | dout(15) << "status=" << status << dendl; |
9f95a23c TL |
861 | m_local_status_updater->set_mirror_image_status(m_global_image_id, status, |
862 | force); | |
863 | if (m_remote_image_peer.mirror_status_updater != nullptr) { | |
864 | m_remote_image_peer.mirror_status_updater->set_mirror_image_status( | |
865 | m_global_image_id, status, force); | |
7c673cae FG |
866 | } |
867 | ||
9f95a23c | 868 | m_in_flight_op_tracker.finish_op(); |
7c673cae FG |
869 | } |
870 | ||
871 | template <typename I> | |
872 | void ImageReplayer<I>::shut_down(int r) { | |
11fdf7f2 | 873 | dout(10) << "r=" << r << dendl; |
3efd9988 | 874 | |
3efd9988 | 875 | { |
9f95a23c | 876 | std::lock_guard locker{m_lock}; |
11fdf7f2 | 877 | ceph_assert(m_state == STATE_STOPPING); |
7c673cae FG |
878 | } |
879 | ||
9f95a23c TL |
880 | if (!m_in_flight_op_tracker.empty()) { |
881 | dout(15) << "waiting for in-flight operations to complete" << dendl; | |
882 | m_in_flight_op_tracker.wait_for_ops(new LambdaContext([this, r](int) { | |
883 | shut_down(r); | |
884 | })); | |
885 | return; | |
886 | } | |
31f18b77 | 887 | |
7c673cae | 888 | // chain the shut down sequence (reverse order) |
9f95a23c | 889 | Context *ctx = new LambdaContext( |
7c673cae | 890 | [this, r](int _r) { |
9f95a23c | 891 | update_mirror_image_status(true, STATE_STOPPED); |
7c673cae FG |
892 | handle_shut_down(r); |
893 | }); | |
31f18b77 | 894 | |
9f95a23c TL |
895 | // destruct the state builder |
896 | if (m_state_builder != nullptr) { | |
897 | ctx = new LambdaContext([this, ctx](int r) { | |
898 | m_state_builder->close(ctx); | |
31f18b77 FG |
899 | }); |
900 | } | |
901 | ||
9f95a23c TL |
902 | // close the replayer |
903 | if (m_replayer != nullptr) { | |
904 | ctx = new LambdaContext([this, ctx](int r) { | |
905 | m_replayer->destroy(); | |
906 | m_replayer = nullptr; | |
907 | ctx->complete(0); | |
908 | }); | |
909 | ctx = new LambdaContext([this, ctx](int r) { | |
910 | m_replayer->shut_down(ctx); | |
31f18b77 | 911 | }); |
7c673cae | 912 | } |
31f18b77 | 913 | |
7c673cae FG |
914 | m_threads->work_queue->queue(ctx, 0); |
915 | } | |
916 | ||
917 | template <typename I> | |
918 | void ImageReplayer<I>::handle_shut_down(int r) { | |
11fdf7f2 TL |
919 | bool resync_requested = false; |
920 | bool delete_requested = false; | |
3efd9988 | 921 | bool unregister_asok_hook = false; |
7c673cae | 922 | { |
9f95a23c | 923 | std::lock_guard locker{m_lock}; |
7c673cae | 924 | |
9f95a23c TL |
925 | if (m_delete_requested && m_state_builder != nullptr && |
926 | !m_state_builder->local_image_id.empty()) { | |
927 | ceph_assert(m_state_builder->remote_image_id.empty()); | |
d2e6a577 | 928 | dout(0) << "remote image no longer exists: scheduling deletion" << dendl; |
11fdf7f2 TL |
929 | unregister_asok_hook = true; |
930 | std::swap(delete_requested, m_delete_requested); | |
d2e6a577 | 931 | } |
d2e6a577 | 932 | |
11fdf7f2 | 933 | std::swap(resync_requested, m_resync_requested); |
9f95a23c TL |
934 | if (!delete_requested && !resync_requested && m_last_r == -ENOENT && |
935 | ((m_state_builder == nullptr) || | |
936 | (m_state_builder->local_image_id.empty() && | |
937 | m_state_builder->remote_image_id.empty()))) { | |
d2e6a577 | 938 | dout(0) << "mirror image no longer exists" << dendl; |
3efd9988 | 939 | unregister_asok_hook = true; |
d2e6a577 | 940 | m_finished = true; |
7c673cae FG |
941 | } |
942 | } | |
943 | ||
3efd9988 FG |
944 | if (unregister_asok_hook) { |
945 | unregister_admin_socket_hook(); | |
946 | } | |
947 | ||
11fdf7f2 TL |
948 | if (delete_requested || resync_requested) { |
949 | dout(5) << "moving image to trash" << dendl; | |
9f95a23c | 950 | auto ctx = new LambdaContext([this, r](int) { |
11fdf7f2 TL |
951 | handle_shut_down(r); |
952 | }); | |
9f95a23c | 953 | ImageDeleter<I>::trash_move(m_local_io_ctx, m_global_image_id, |
11fdf7f2 TL |
954 | resync_requested, m_threads->work_queue, ctx); |
955 | return; | |
956 | } | |
7c673cae | 957 | |
9f95a23c TL |
958 | if (!m_in_flight_op_tracker.empty()) { |
959 | dout(15) << "waiting for in-flight operations to complete" << dendl; | |
960 | m_in_flight_op_tracker.wait_for_ops(new LambdaContext([this, r](int) { | |
961 | handle_shut_down(r); | |
962 | })); | |
963 | return; | |
964 | } | |
7c673cae | 965 | |
9f95a23c TL |
966 | if (m_local_status_updater->exists(m_global_image_id)) { |
967 | dout(15) << "removing local mirror image status" << dendl; | |
968 | auto ctx = new LambdaContext([this, r](int) { | |
969 | handle_shut_down(r); | |
970 | }); | |
971 | m_local_status_updater->remove_mirror_image_status(m_global_image_id, ctx); | |
972 | return; | |
973 | } | |
974 | ||
975 | if (m_remote_image_peer.mirror_status_updater != nullptr && | |
976 | m_remote_image_peer.mirror_status_updater->exists(m_global_image_id)) { | |
977 | dout(15) << "removing remote mirror image status" << dendl; | |
978 | auto ctx = new LambdaContext([this, r](int) { | |
979 | handle_shut_down(r); | |
980 | }); | |
981 | m_remote_image_peer.mirror_status_updater->remove_mirror_image_status( | |
982 | m_global_image_id, ctx); | |
983 | return; | |
984 | } | |
985 | ||
986 | if (m_state_builder != nullptr) { | |
987 | m_state_builder->destroy(); | |
988 | m_state_builder = nullptr; | |
989 | } | |
990 | ||
991 | dout(10) << "stop complete" << dendl; | |
7c673cae FG |
992 | Context *on_start = nullptr; |
993 | Context *on_stop = nullptr; | |
994 | { | |
9f95a23c | 995 | std::lock_guard locker{m_lock}; |
7c673cae FG |
996 | std::swap(on_start, m_on_start_finish); |
997 | std::swap(on_stop, m_on_stop_finish); | |
998 | m_stop_requested = false; | |
11fdf7f2 | 999 | ceph_assert(m_state == STATE_STOPPING); |
7c673cae FG |
1000 | m_state = STATE_STOPPED; |
1001 | } | |
1002 | ||
1003 | if (on_start != nullptr) { | |
11fdf7f2 | 1004 | dout(10) << "on start finish complete, r=" << r << dendl; |
7c673cae FG |
1005 | on_start->complete(r); |
1006 | r = 0; | |
1007 | } | |
1008 | if (on_stop != nullptr) { | |
11fdf7f2 | 1009 | dout(10) << "on stop finish complete, r=" << r << dendl; |
7c673cae FG |
1010 | on_stop->complete(r); |
1011 | } | |
1012 | } | |
1013 | ||
1014 | template <typename I> | |
9f95a23c TL |
1015 | void ImageReplayer<I>::handle_replayer_notification() { |
1016 | dout(10) << dendl; | |
1017 | ||
1018 | std::unique_lock locker{m_lock}; | |
1019 | if (m_state != STATE_REPLAYING) { | |
1020 | // might be attempting to shut down | |
1021 | return; | |
1022 | } | |
7c673cae | 1023 | |
7c673cae | 1024 | { |
9f95a23c TL |
1025 | // detect a rename of the local image |
1026 | ceph_assert(m_state_builder != nullptr && | |
1027 | m_state_builder->local_image_ctx != nullptr); | |
1028 | std::shared_lock image_locker{m_state_builder->local_image_ctx->image_lock}; | |
1029 | if (m_local_image_name != m_state_builder->local_image_ctx->name) { | |
1030 | // will re-register with new name after next status update | |
1031 | dout(10) << "image renamed" << dendl; | |
1032 | m_local_image_name = m_state_builder->local_image_ctx->name; | |
7c673cae | 1033 | } |
9f95a23c | 1034 | } |
7c673cae | 1035 | |
9f95a23c TL |
1036 | // replayer cannot be shut down while notification is in-flight |
1037 | ceph_assert(m_replayer != nullptr); | |
1038 | locker.unlock(); | |
1039 | ||
1040 | if (m_replayer->is_resync_requested()) { | |
1041 | dout(10) << "resync requested" << dendl; | |
1042 | m_resync_requested = true; | |
1043 | on_stop_journal_replay(0, "resync requested"); | |
1044 | return; | |
7c673cae FG |
1045 | } |
1046 | ||
9f95a23c TL |
1047 | if (!m_replayer->is_replaying()) { |
1048 | auto error_code = m_replayer->get_error_code(); | |
1049 | auto error_description = m_replayer->get_error_description(); | |
1050 | dout(10) << "replay interrupted: " | |
1051 | << "r=" << error_code << ", " | |
1052 | << "error=" << error_description << dendl; | |
1053 | on_stop_journal_replay(error_code, error_description); | |
1054 | return; | |
7c673cae | 1055 | } |
9f95a23c TL |
1056 | |
1057 | update_mirror_image_status(false, {}); | |
7c673cae FG |
1058 | } |
1059 | ||
1060 | template <typename I> | |
1061 | std::string ImageReplayer<I>::to_string(const State state) { | |
1062 | switch (state) { | |
1063 | case ImageReplayer<I>::STATE_STARTING: | |
1064 | return "Starting"; | |
1065 | case ImageReplayer<I>::STATE_REPLAYING: | |
1066 | return "Replaying"; | |
7c673cae FG |
1067 | case ImageReplayer<I>::STATE_STOPPING: |
1068 | return "Stopping"; | |
1069 | case ImageReplayer<I>::STATE_STOPPED: | |
1070 | return "Stopped"; | |
1071 | default: | |
1072 | break; | |
1073 | } | |
1074 | return "Unknown(" + stringify(state) + ")"; | |
1075 | } | |
1076 | ||
d2e6a577 FG |
1077 | template <typename I> |
1078 | void ImageReplayer<I>::register_admin_socket_hook() { | |
3efd9988 FG |
1079 | ImageReplayerAdminSocketHook<I> *asok_hook; |
1080 | { | |
9f95a23c | 1081 | std::lock_guard locker{m_lock}; |
3efd9988 FG |
1082 | if (m_asok_hook != nullptr) { |
1083 | return; | |
1084 | } | |
7c673cae | 1085 | |
9f95a23c TL |
1086 | dout(15) << "registered asok hook: " << m_image_spec << dendl; |
1087 | asok_hook = new ImageReplayerAdminSocketHook<I>( | |
1088 | g_ceph_context, m_image_spec, this); | |
3efd9988 FG |
1089 | int r = asok_hook->register_commands(); |
1090 | if (r == 0) { | |
1091 | m_asok_hook = asok_hook; | |
1092 | return; | |
1093 | } | |
d2e6a577 | 1094 | derr << "error registering admin socket commands" << dendl; |
d2e6a577 | 1095 | } |
3efd9988 | 1096 | delete asok_hook; |
d2e6a577 FG |
1097 | } |
1098 | ||
1099 | template <typename I> | |
1100 | void ImageReplayer<I>::unregister_admin_socket_hook() { | |
28e407b8 | 1101 | dout(15) << dendl; |
d2e6a577 | 1102 | |
3efd9988 FG |
1103 | AdminSocketHook *asok_hook = nullptr; |
1104 | { | |
9f95a23c | 1105 | std::lock_guard locker{m_lock}; |
3efd9988 FG |
1106 | std::swap(asok_hook, m_asok_hook); |
1107 | } | |
1108 | delete asok_hook; | |
1109 | } | |
1110 | ||
1111 | template <typename I> | |
28e407b8 | 1112 | void ImageReplayer<I>::reregister_admin_socket_hook() { |
9f95a23c TL |
1113 | std::unique_lock locker{m_lock}; |
1114 | if (m_state == STATE_STARTING && m_bootstrap_request != nullptr) { | |
1115 | m_local_image_name = m_bootstrap_request->get_local_image_name(); | |
3efd9988 | 1116 | } |
9f95a23c TL |
1117 | |
1118 | auto image_spec = image_replayer::util::compute_image_spec( | |
1119 | m_local_io_ctx, m_local_image_name); | |
1120 | if (m_asok_hook != nullptr && m_image_spec == image_spec) { | |
1121 | return; | |
1122 | } | |
1123 | ||
1124 | dout(15) << "old_image_spec=" << m_image_spec << ", " | |
1125 | << "new_image_spec=" << image_spec << dendl; | |
1126 | m_image_spec = image_spec; | |
1127 | ||
1128 | if (m_state == STATE_STOPPING || m_state == STATE_STOPPED) { | |
1129 | // no need to re-register if stopping | |
1130 | return; | |
1131 | } | |
1132 | locker.unlock(); | |
1133 | ||
3efd9988 FG |
1134 | unregister_admin_socket_hook(); |
1135 | register_admin_socket_hook(); | |
7c673cae FG |
1136 | } |
1137 | ||
1138 | template <typename I> | |
1139 | std::ostream &operator<<(std::ostream &os, const ImageReplayer<I> &replayer) | |
1140 | { | |
1141 | os << "ImageReplayer: " << &replayer << " [" << replayer.get_local_pool_id() | |
1142 | << "/" << replayer.get_global_image_id() << "]"; | |
1143 | return os; | |
1144 | } | |
1145 | ||
1146 | } // namespace mirror | |
1147 | } // namespace rbd | |
1148 | ||
1149 | template class rbd::mirror::ImageReplayer<librbd::ImageCtx>; |