+++ /dev/null
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-
-#include "include/compat.h"
-#include "BootstrapRequest.h"
-#include "CloseImageRequest.h"
-#include "CreateImageRequest.h"
-#include "IsPrimaryRequest.h"
-#include "OpenImageRequest.h"
-#include "OpenLocalImageRequest.h"
-#include "common/debug.h"
-#include "common/dout.h"
-#include "common/errno.h"
-#include "common/WorkQueue.h"
-#include "cls/rbd/cls_rbd_client.h"
-#include "journal/Journaler.h"
-#include "librbd/ImageCtx.h"
-#include "librbd/ImageState.h"
-#include "librbd/internal.h"
-#include "librbd/Journal.h"
-#include "librbd/Utils.h"
-#include "librbd/journal/Types.h"
-#include "tools/rbd_mirror/ProgressContext.h"
-#include "tools/rbd_mirror/ImageSync.h"
-
-#define dout_context g_ceph_context
-#define dout_subsys ceph_subsys_rbd_mirror
-#undef dout_prefix
-#define dout_prefix *_dout << "rbd::mirror::image_replayer::BootstrapRequest: " \
- << this << " " << __func__
-
-namespace rbd {
-namespace mirror {
-namespace image_replayer {
-
-using librbd::util::create_context_callback;
-using librbd::util::create_rados_callback;
-using librbd::util::unique_lock_name;
-
-template <typename I>
-BootstrapRequest<I>::BootstrapRequest(
- librados::IoCtx &local_io_ctx,
- librados::IoCtx &remote_io_ctx,
- InstanceWatcher<I> *instance_watcher,
- I **local_image_ctx,
- const std::string &local_image_id,
- const std::string &remote_image_id,
- const std::string &global_image_id,
- ContextWQ *work_queue, SafeTimer *timer,
- Mutex *timer_lock,
- const std::string &local_mirror_uuid,
- const std::string &remote_mirror_uuid,
- Journaler *journaler,
- MirrorPeerClientMeta *client_meta,
- Context *on_finish,
- bool *do_resync,
- rbd::mirror::ProgressContext *progress_ctx)
- : BaseRequest("rbd::mirror::image_replayer::BootstrapRequest",
- reinterpret_cast<CephContext*>(local_io_ctx.cct()), on_finish),
- m_local_io_ctx(local_io_ctx), m_remote_io_ctx(remote_io_ctx),
- m_instance_watcher(instance_watcher), m_local_image_ctx(local_image_ctx),
- m_local_image_id(local_image_id), m_remote_image_id(remote_image_id),
- m_global_image_id(global_image_id), m_work_queue(work_queue),
- m_timer(timer), m_timer_lock(timer_lock),
- m_local_mirror_uuid(local_mirror_uuid),
- m_remote_mirror_uuid(remote_mirror_uuid), m_journaler(journaler),
- m_client_meta(client_meta), m_progress_ctx(progress_ctx),
- m_do_resync(do_resync),
- m_lock(unique_lock_name("BootstrapRequest::m_lock", this)) {
-}
-
-template <typename I>
-BootstrapRequest<I>::~BootstrapRequest() {
- assert(m_remote_image_ctx == nullptr);
-}
-
-template <typename I>
-bool BootstrapRequest<I>::is_syncing() const {
- Mutex::Locker locker(m_lock);
- return (m_image_sync != nullptr);
-}
-
-template <typename I>
-void BootstrapRequest<I>::send() {
- *m_do_resync = false;
-
- get_remote_tag_class();
-}
-
-template <typename I>
-void BootstrapRequest<I>::cancel() {
- dout(20) << dendl;
-
- Mutex::Locker locker(m_lock);
- m_canceled = true;
-
- if (m_image_sync != nullptr) {
- m_image_sync->cancel();
- }
-}
-
-template <typename I>
-void BootstrapRequest<I>::get_remote_tag_class() {
- dout(20) << dendl;
-
- update_progress("GET_REMOTE_TAG_CLASS");
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_get_remote_tag_class>(
- this);
- m_journaler->get_client(librbd::Journal<>::IMAGE_CLIENT_ID, &m_client, ctx);
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_get_remote_tag_class(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r < 0) {
- derr << ": failed to retrieve remote client: " << cpp_strerror(r) << dendl;
- finish(r);
- return;
- }
-
- librbd::journal::ClientData client_data;
- bufferlist::iterator it = m_client.data.begin();
- try {
- ::decode(client_data, it);
- } catch (const buffer::error &err) {
- derr << ": failed to decode remote client meta data: " << err.what()
- << dendl;
- finish(-EBADMSG);
- return;
- }
-
- librbd::journal::ImageClientMeta *client_meta =
- boost::get<librbd::journal::ImageClientMeta>(&client_data.client_meta);
- if (client_meta == nullptr) {
- derr << ": unknown remote client registration" << dendl;
- finish(-EINVAL);
- return;
- }
-
- m_remote_tag_class = client_meta->tag_class;
- dout(10) << ": remote tag class=" << m_remote_tag_class << dendl;
-
- open_remote_image();
-}
-
-template <typename I>
-void BootstrapRequest<I>::open_remote_image() {
- dout(20) << dendl;
-
- update_progress("OPEN_REMOTE_IMAGE");
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_open_remote_image>(
- this);
- OpenImageRequest<I> *request = OpenImageRequest<I>::create(
- m_remote_io_ctx, &m_remote_image_ctx, m_remote_image_id, false,
- ctx);
- request->send();
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_open_remote_image(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r < 0) {
- derr << ": failed to open remote image: " << cpp_strerror(r) << dendl;
- assert(m_remote_image_ctx == nullptr);
- finish(r);
- return;
- }
-
- get_client();
-}
-
-template <typename I>
-void BootstrapRequest<I>::get_client() {
- dout(20) << dendl;
-
- update_progress("GET_CLIENT");
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_get_client>(
- this);
- m_journaler->get_client(m_local_mirror_uuid, &m_client, ctx);
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_get_client(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r == -ENOENT) {
- dout(10) << ": client not registered" << dendl;
- } else if (r < 0) {
- derr << ": failed to retrieve client: " << cpp_strerror(r) << dendl;
- m_ret_val = r;
- close_remote_image();
- return;
- } else if (decode_client_meta()) {
- // skip registration if it already exists
- is_primary();
- return;
- }
-
- register_client();
-}
-
-template <typename I>
-void BootstrapRequest<I>::register_client() {
- dout(20) << dendl;
-
- update_progress("REGISTER_CLIENT");
-
- librbd::journal::MirrorPeerClientMeta mirror_peer_client_meta{
- m_local_image_id};
- mirror_peer_client_meta.state = librbd::journal::MIRROR_PEER_STATE_REPLAYING;
-
- librbd::journal::ClientData client_data{mirror_peer_client_meta};
- bufferlist client_data_bl;
- ::encode(client_data, client_data_bl);
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_register_client>(
- this);
- m_journaler->register_client(client_data_bl, ctx);
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_register_client(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r < 0) {
- derr << ": failed to register with remote journal: " << cpp_strerror(r)
- << dendl;
- m_ret_val = r;
- close_remote_image();
- return;
- }
-
- m_client = {};
- *m_client_meta = librbd::journal::MirrorPeerClientMeta(m_local_image_id);
- m_client_meta->state = librbd::journal::MIRROR_PEER_STATE_REPLAYING;
-
- is_primary();
-}
-
-template <typename I>
-void BootstrapRequest<I>::is_primary() {
- dout(20) << dendl;
-
- update_progress("OPEN_REMOTE_IMAGE");
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_is_primary>(
- this);
- IsPrimaryRequest<I> *request = IsPrimaryRequest<I>::create(m_remote_image_ctx,
- &m_primary, ctx);
- request->send();
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_is_primary(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r < 0) {
- derr << ": error querying remote image primary status: " << cpp_strerror(r)
- << dendl;
- m_ret_val = r;
- close_remote_image();
- return;
- }
-
- if (!m_primary) {
- dout(5) << ": remote image is not primary -- skipping image replay"
- << dendl;
- m_ret_val = -EREMOTEIO;
- update_client_state();
- return;
- }
-
- if (m_local_image_id.empty()) {
- update_client_image();
- return;
- }
-
- open_local_image();
-}
-
-template <typename I>
-void BootstrapRequest<I>::update_client_state() {
- if (m_client_meta->state == librbd::journal::MIRROR_PEER_STATE_REPLAYING) {
- // state already set for replaying upon failover
- close_remote_image();
- return;
- }
-
- dout(20) << dendl;
- update_progress("UPDATE_CLIENT_STATE");
-
- librbd::journal::MirrorPeerClientMeta client_meta(*m_client_meta);
- client_meta.state = librbd::journal::MIRROR_PEER_STATE_REPLAYING;
-
- librbd::journal::ClientData client_data(client_meta);
- bufferlist data_bl;
- ::encode(client_data, data_bl);
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_update_client_state>(
- this);
- m_journaler->update_client(data_bl, ctx);
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_update_client_state(int r) {
- dout(20) << ": r=" << r << dendl;
- if (r < 0) {
- derr << ": failed to update client: " << cpp_strerror(r) << dendl;
- } else {
- m_client_meta->state = librbd::journal::MIRROR_PEER_STATE_REPLAYING;
- }
-
- close_remote_image();
-}
-
-template <typename I>
-void BootstrapRequest<I>::open_local_image() {
- dout(20) << dendl;
-
- update_progress("OPEN_LOCAL_IMAGE");
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_open_local_image>(
- this);
- OpenLocalImageRequest<I> *request = OpenLocalImageRequest<I>::create(
- m_local_io_ctx, m_local_image_ctx, m_local_image_id, m_work_queue,
- ctx);
- request->send();
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_open_local_image(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r == -ENOENT) {
- assert(*m_local_image_ctx == nullptr);
- dout(10) << ": local image missing" << dendl;
- unregister_client();
- return;
- } else if (r == -EREMOTEIO) {
- assert(*m_local_image_ctx == nullptr);
- dout(10) << "local image is primary -- skipping image replay" << dendl;
- m_ret_val = r;
- close_remote_image();
- return;
- } else if (r < 0) {
- assert(*m_local_image_ctx == nullptr);
- derr << ": failed to open local image: " << cpp_strerror(r) << dendl;
- m_ret_val = r;
- close_remote_image();
- return;
- }
-
- I *local_image_ctx = (*m_local_image_ctx);
- {
- RWLock::RLocker snap_locker(local_image_ctx->snap_lock);
- if (local_image_ctx->journal == nullptr) {
- derr << ": local image does not support journaling" << dendl;
- m_ret_val = -EINVAL;
- close_local_image();
- return;
- }
-
- r = (*m_local_image_ctx)->journal->is_resync_requested(m_do_resync);
- if (r < 0) {
- derr << ": failed to check if a resync was requested" << dendl;
- m_ret_val = r;
- close_local_image();
- return;
- }
- }
-
- if (*m_do_resync) {
- close_remote_image();
- return;
- }
-
- if (m_client.state == cls::journal::CLIENT_STATE_DISCONNECTED) {
- dout(10) << ": client flagged disconnected -- skipping bootstrap" << dendl;
- // The caller is expected to detect disconnect initializing remote journal.
- m_ret_val = 0;
- close_remote_image();
- return;
- }
-
- get_remote_tags();
-}
-
-template <typename I>
-void BootstrapRequest<I>::unregister_client() {
- dout(20) << dendl;
- update_progress("UNREGISTER_CLIENT");
-
- m_local_image_id = "";
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_unregister_client>(
- this);
- m_journaler->unregister_client(ctx);
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_unregister_client(int r) {
- dout(20) << ": r=" << r << dendl;
- if (r < 0) {
- derr << ": failed to unregister with remote journal: " << cpp_strerror(r)
- << dendl;
- m_ret_val = r;
- close_remote_image();
- return;
- }
-
- *m_client_meta = librbd::journal::MirrorPeerClientMeta("");
- register_client();
-}
-
-template <typename I>
-void BootstrapRequest<I>::update_client_image() {
- dout(20) << dendl;
- update_progress("UPDATE_CLIENT_IMAGE");
-
- assert(m_local_image_id.empty());
- m_local_image_id = librbd::util::generate_image_id<I>(m_local_io_ctx);
-
- librbd::journal::MirrorPeerClientMeta client_meta{m_local_image_id};
- client_meta.state = librbd::journal::MIRROR_PEER_STATE_SYNCING;
-
- librbd::journal::ClientData client_data(client_meta);
- bufferlist data_bl;
- ::encode(client_data, data_bl);
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_update_client_image>(
- this);
- m_journaler->update_client(data_bl, ctx);
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_update_client_image(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r < 0) {
- derr << ": failed to update client: " << cpp_strerror(r) << dendl;
- m_ret_val = r;
- close_remote_image();
- return;
- }
-
- if (m_canceled) {
- dout(10) << ": request canceled" << dendl;
- m_ret_val = -ECANCELED;
- close_remote_image();
- return;
- }
-
- *m_client_meta = {m_local_image_id};
- m_client_meta->state = librbd::journal::MIRROR_PEER_STATE_SYNCING;
- create_local_image();
-}
-
-template <typename I>
-void BootstrapRequest<I>::create_local_image() {
- dout(20) << dendl;
- update_progress("CREATE_LOCAL_IMAGE");
-
- m_remote_image_ctx->snap_lock.get_read();
- std::string image_name = m_remote_image_ctx->name;
- m_remote_image_ctx->snap_lock.put_read();
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_create_local_image>(
- this);
- CreateImageRequest<I> *request = CreateImageRequest<I>::create(
- m_local_io_ctx, m_work_queue, m_global_image_id, m_remote_mirror_uuid,
- image_name, m_local_image_id, m_remote_image_ctx, ctx);
- request->send();
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_create_local_image(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r < 0) {
- derr << ": failed to create local image: " << cpp_strerror(r) << dendl;
- m_ret_val = r;
- close_remote_image();
- return;
- }
-
- open_local_image();
-}
-
-template <typename I>
-void BootstrapRequest<I>::get_remote_tags() {
- if (m_client_meta->state == librbd::journal::MIRROR_PEER_STATE_SYNCING) {
- // optimization -- no need to compare remote tags if we just created
- // the image locally or sync was interrupted
- image_sync();
- return;
- }
-
- dout(20) << dendl;
- update_progress("GET_REMOTE_TAGS");
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_get_remote_tags>(this);
- m_journaler->get_tags(m_remote_tag_class, &m_remote_tags, ctx);
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_get_remote_tags(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r < 0) {
- derr << ": failed to retrieve remote tags: " << cpp_strerror(r) << dendl;
- m_ret_val = r;
- close_local_image();
- return;
- }
-
- if (m_canceled) {
- dout(10) << ": request canceled" << dendl;
- m_ret_val = -ECANCELED;
- close_local_image();
- return;
- }
-
- // At this point, the local image was existing, non-primary, and replaying;
- // and the remote image is primary. Attempt to link the local image's most
- // recent tag to the remote image's tag chain.
- uint64_t local_tag_tid;
- librbd::journal::TagData local_tag_data;
- I *local_image_ctx = (*m_local_image_ctx);
- {
- RWLock::RLocker snap_locker(local_image_ctx->snap_lock);
- if (local_image_ctx->journal == nullptr) {
- derr << ": local image does not support journaling" << dendl;
- m_ret_val = -EINVAL;
- close_local_image();
- return;
- }
-
- local_tag_tid = local_image_ctx->journal->get_tag_tid();
- local_tag_data = local_image_ctx->journal->get_tag_data();
- dout(20) << ": local tag " << local_tag_tid << ": "
- << local_tag_data << dendl;
- }
-
- bool remote_tag_data_valid = false;
- librbd::journal::TagData remote_tag_data;
- boost::optional<uint64_t> remote_orphan_tag_tid =
- boost::make_optional<uint64_t>(false, 0U);
- bool reconnect_orphan = false;
-
- // decode the remote tags
- for (auto &remote_tag : m_remote_tags) {
- if (local_tag_data.predecessor.commit_valid &&
- local_tag_data.predecessor.mirror_uuid == m_remote_mirror_uuid &&
- local_tag_data.predecessor.tag_tid > remote_tag.tid) {
- dout(20) << ": skipping processed predecessor remote tag "
- << remote_tag.tid << dendl;
- continue;
- }
-
- try {
- bufferlist::iterator it = remote_tag.data.begin();
- ::decode(remote_tag_data, it);
- remote_tag_data_valid = true;
- } catch (const buffer::error &err) {
- derr << ": failed to decode remote tag " << remote_tag.tid << ": "
- << err.what() << dendl;
- m_ret_val = -EBADMSG;
- close_local_image();
- return;
- }
-
- dout(10) << ": decoded remote tag " << remote_tag.tid << ": "
- << remote_tag_data << dendl;
-
- if (!local_tag_data.predecessor.commit_valid) {
- // newly synced local image (no predecessor) replays from the first tag
- if (remote_tag_data.mirror_uuid != librbd::Journal<>::LOCAL_MIRROR_UUID) {
- dout(20) << ": skipping non-primary remote tag" << dendl;
- continue;
- }
-
- dout(20) << ": using initial primary remote tag" << dendl;
- break;
- }
-
- if (local_tag_data.mirror_uuid == librbd::Journal<>::ORPHAN_MIRROR_UUID) {
- // demotion last available local epoch
-
- if (remote_tag_data.mirror_uuid == local_tag_data.mirror_uuid &&
- remote_tag_data.predecessor.commit_valid &&
- remote_tag_data.predecessor.tag_tid ==
- local_tag_data.predecessor.tag_tid) {
- // demotion matches remote epoch
-
- if (remote_tag_data.predecessor.mirror_uuid == m_local_mirror_uuid &&
- local_tag_data.predecessor.mirror_uuid ==
- librbd::Journal<>::LOCAL_MIRROR_UUID) {
- // local demoted and remote has matching event
- dout(20) << ": found matching local demotion tag" << dendl;
- remote_orphan_tag_tid = remote_tag.tid;
- continue;
- }
-
- if (local_tag_data.predecessor.mirror_uuid == m_remote_mirror_uuid &&
- remote_tag_data.predecessor.mirror_uuid ==
- librbd::Journal<>::LOCAL_MIRROR_UUID) {
- // remote demoted and local has matching event
- dout(20) << ": found matching remote demotion tag" << dendl;
- remote_orphan_tag_tid = remote_tag.tid;
- continue;
- }
- }
-
- if (remote_tag_data.mirror_uuid == librbd::Journal<>::LOCAL_MIRROR_UUID &&
- remote_tag_data.predecessor.mirror_uuid == librbd::Journal<>::ORPHAN_MIRROR_UUID &&
- remote_tag_data.predecessor.commit_valid && remote_orphan_tag_tid &&
- remote_tag_data.predecessor.tag_tid == *remote_orphan_tag_tid) {
- // remote promotion tag chained to remote/local demotion tag
- dout(20) << ": found chained remote promotion tag" << dendl;
- reconnect_orphan = true;
- break;
- }
-
- // promotion must follow demotion
- remote_orphan_tag_tid = boost::none;
- }
- }
-
- if (remote_tag_data_valid &&
- local_tag_data.mirror_uuid == m_remote_mirror_uuid) {
- dout(20) << ": local image is in clean replay state" << dendl;
- } else if (reconnect_orphan) {
- dout(20) << ": remote image was demoted/promoted" << dendl;
- } else {
- derr << ": split-brain detected -- skipping image replay" << dendl;
- m_ret_val = -EEXIST;
- close_local_image();
- return;
- }
-
- image_sync();
-}
-
-template <typename I>
-void BootstrapRequest<I>::image_sync() {
- if (m_client_meta->state == librbd::journal::MIRROR_PEER_STATE_REPLAYING) {
- // clean replay state -- no image sync required
- close_remote_image();
- return;
- }
-
- dout(20) << dendl;
- {
- Mutex::Locker locker(m_lock);
- if (m_canceled) {
- m_ret_val = -ECANCELED;
- } else {
- assert(m_image_sync == nullptr);
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_image_sync>(this);
- m_image_sync = ImageSync<I>::create(
- *m_local_image_ctx, m_remote_image_ctx, m_timer, m_timer_lock,
- m_local_mirror_uuid, m_journaler, m_client_meta, m_work_queue,
- m_instance_watcher, ctx, m_progress_ctx);
-
- m_image_sync->get();
-
- m_lock.Unlock();
- update_progress("IMAGE_SYNC");
- m_lock.Lock();
-
- m_image_sync->send();
- return;
- }
- }
-
- dout(10) << ": request canceled" << dendl;
- close_remote_image();
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_image_sync(int r) {
- dout(20) << ": r=" << r << dendl;
-
- {
- Mutex::Locker locker(m_lock);
- m_image_sync->put();
- m_image_sync = nullptr;
-
- if (m_canceled) {
- dout(10) << ": request canceled" << dendl;
- m_ret_val = -ECANCELED;
- }
-
- if (r < 0) {
- derr << ": failed to sync remote image: " << cpp_strerror(r) << dendl;
- m_ret_val = r;
- }
- }
-
- close_remote_image();
-}
-
-template <typename I>
-void BootstrapRequest<I>::close_local_image() {
- dout(20) << dendl;
-
- update_progress("CLOSE_LOCAL_IMAGE");
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_close_local_image>(
- this);
- CloseImageRequest<I> *request = CloseImageRequest<I>::create(
- m_local_image_ctx, ctx);
- request->send();
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_close_local_image(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r < 0) {
- derr << ": error encountered closing local image: " << cpp_strerror(r)
- << dendl;
- }
-
- close_remote_image();
-}
-
-template <typename I>
-void BootstrapRequest<I>::close_remote_image() {
- dout(20) << dendl;
-
- update_progress("CLOSE_REMOTE_IMAGE");
-
- Context *ctx = create_context_callback<
- BootstrapRequest<I>, &BootstrapRequest<I>::handle_close_remote_image>(
- this);
- CloseImageRequest<I> *request = CloseImageRequest<I>::create(
- &m_remote_image_ctx, ctx);
- request->send();
-}
-
-template <typename I>
-void BootstrapRequest<I>::handle_close_remote_image(int r) {
- dout(20) << ": r=" << r << dendl;
-
- if (r < 0) {
- derr << ": error encountered closing remote image: " << cpp_strerror(r)
- << dendl;
- }
-
- finish(m_ret_val);
-}
-
-template <typename I>
-bool BootstrapRequest<I>::decode_client_meta() {
- dout(20) << dendl;
-
- librbd::journal::ClientData client_data;
- bufferlist::iterator it = m_client.data.begin();
- try {
- ::decode(client_data, it);
- } catch (const buffer::error &err) {
- derr << ": failed to decode client meta data: " << err.what() << dendl;
- return false;
- }
-
- librbd::journal::MirrorPeerClientMeta *client_meta =
- boost::get<librbd::journal::MirrorPeerClientMeta>(&client_data.client_meta);
- if (client_meta == nullptr) {
- derr << ": unknown peer registration" << dendl;
- return false;
- } else if (!client_meta->image_id.empty()) {
- // have an image id -- use that to open the image
- m_local_image_id = client_meta->image_id;
- }
-
- *m_client_meta = *client_meta;
-
- dout(20) << ": client found: image_id=" << m_local_image_id
- << ", client_meta=" << *m_client_meta << dendl;
- return true;
-}
-
-template <typename I>
-void BootstrapRequest<I>::update_progress(const std::string &description) {
- dout(20) << ": " << description << dendl;
-
- if (m_progress_ctx) {
- m_progress_ctx->update_progress(description);
- }
-}
-
-} // namespace image_replayer
-} // namespace mirror
-} // namespace rbd
-
-template class rbd::mirror::image_replayer::BootstrapRequest<librbd::ImageCtx>;
Code Review / stor4nfv.git / blobdiff