#include #include "common/ceph_json.h" #include "common/RWLock.h" #include "common/RefCountedObj.h" #include "common/WorkQueue.h" #include "common/Throttle.h" #include "common/errno.h" #include "rgw_common.h" #include "rgw_rados.h" #include "rgw_sync.h" #include "rgw_data_sync.h" #include "rgw_rest_conn.h" #include "rgw_cr_rados.h" #include "rgw_cr_rest.h" #include "rgw_http_client.h" #include "rgw_bucket.h" #include "rgw_metadata.h" #include "rgw_sync_module.h" #include "cls/lock/cls_lock_client.h" #include "auth/Crypto.h" #include #define dout_subsys ceph_subsys_rgw #undef dout_prefix #define dout_prefix (*_dout << "data sync: ") static string datalog_sync_status_oid_prefix = "datalog.sync-status"; static string datalog_sync_status_shard_prefix = "datalog.sync-status.shard"; static string datalog_sync_full_sync_index_prefix = "data.full-sync.index"; static string bucket_status_oid_prefix = "bucket.sync-status"; class RGWSyncDebugLogger { CephContext *cct; string prefix; bool ended; public: RGWSyncDebugLogger(CephContext *_cct, const string& source_zone, const string& sync_type, const string& sync_stage, const string& resource, bool log_start = true) { init(_cct, source_zone, sync_type, sync_stage, resource, log_start); } RGWSyncDebugLogger() : cct(NULL), ended(false) {} ~RGWSyncDebugLogger(); void init(CephContext *_cct, const string& source_zone, const string& sync_type, const string& sync_stage, const string& resource, bool log_start = true); void log(const string& state); void finish(int status); }; void RGWSyncDebugLogger::init(CephContext *_cct, const string& source_zone, const string& sync_type, const string& sync_section, const string& resource, bool log_start) { cct = _cct; ended = false; string zone_str = source_zone.substr(0, 8); prefix = "Sync:" + zone_str + ":" + sync_type + ":" + sync_section + ":" + resource; if (log_start) { log("start"); } } RGWSyncDebugLogger::~RGWSyncDebugLogger() { if (!ended) { log("finish"); } } void RGWSyncDebugLogger::log(const string& state) { ldout(cct, 5) << prefix << ":" << state << dendl; } void RGWSyncDebugLogger::finish(int status) { ended = true; ldout(cct, 5) << prefix << ":" << "finish r=" << status << dendl; } class RGWDataSyncDebugLogger : public RGWSyncDebugLogger { public: RGWDataSyncDebugLogger() {} RGWDataSyncDebugLogger(RGWDataSyncEnv *sync_env, const string& sync_section, const string& resource, bool log_start = true) { init(sync_env, sync_section, resource, log_start); } void init(RGWDataSyncEnv *sync_env, const string& sync_section, const string& resource, bool log_start = true) { RGWSyncDebugLogger::init(sync_env->cct, sync_env->source_zone, "data", sync_section, resource, log_start); } }; void rgw_datalog_info::decode_json(JSONObj *obj) { JSONDecoder::decode_json("num_objects", num_shards, obj); } void rgw_datalog_entry::decode_json(JSONObj *obj) { JSONDecoder::decode_json("key", key, obj); utime_t ut; JSONDecoder::decode_json("timestamp", ut, obj); timestamp = ut.to_real_time(); } void rgw_datalog_shard_data::decode_json(JSONObj *obj) { JSONDecoder::decode_json("marker", marker, obj); JSONDecoder::decode_json("truncated", truncated, obj); JSONDecoder::decode_json("entries", entries, obj); }; class RGWReadDataSyncStatusMarkersCR : public RGWShardCollectCR { static constexpr int MAX_CONCURRENT_SHARDS = 16; RGWDataSyncEnv *env; const int num_shards; int shard_id{0};; map& markers; public: RGWReadDataSyncStatusMarkersCR(RGWDataSyncEnv *env, int num_shards, map& markers) : RGWShardCollectCR(env->cct, MAX_CONCURRENT_SHARDS), env(env), num_shards(num_shards), markers(markers) {} bool spawn_next() override; }; bool RGWReadDataSyncStatusMarkersCR::spawn_next() { if (shard_id >= num_shards) { return false; } using CR = RGWSimpleRadosReadCR; spawn(new CR(env->async_rados, env->store, rgw_raw_obj(env->store->get_zone_params().log_pool, RGWDataSyncStatusManager::shard_obj_name(env->source_zone, shard_id)), &markers[shard_id]), false); shard_id++; return true; } class RGWReadDataSyncStatusCoroutine : public RGWCoroutine { RGWDataSyncEnv *sync_env; rgw_data_sync_status *sync_status; public: RGWReadDataSyncStatusCoroutine(RGWDataSyncEnv *_sync_env, rgw_data_sync_status *_status) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), sync_status(_status) {} int operate() override; }; int RGWReadDataSyncStatusCoroutine::operate() { reenter(this) { // read sync info using ReadInfoCR = RGWSimpleRadosReadCR; yield { bool empty_on_enoent = false; // fail on ENOENT call(new ReadInfoCR(sync_env->async_rados, sync_env->store, rgw_raw_obj(sync_env->store->get_zone_params().log_pool, RGWDataSyncStatusManager::sync_status_oid(sync_env->source_zone)), &sync_status->sync_info, empty_on_enoent)); } if (retcode < 0) { ldout(sync_env->cct, 4) << "failed to read sync status info with " << cpp_strerror(retcode) << dendl; return set_cr_error(retcode); } // read shard markers using ReadMarkersCR = RGWReadDataSyncStatusMarkersCR; yield call(new ReadMarkersCR(sync_env, sync_status->sync_info.num_shards, sync_status->sync_markers)); if (retcode < 0) { ldout(sync_env->cct, 4) << "failed to read sync status markers with " << cpp_strerror(retcode) << dendl; return set_cr_error(retcode); } return set_cr_done(); } return 0; } class RGWReadRemoteDataLogShardInfoCR : public RGWCoroutine { RGWDataSyncEnv *sync_env; RGWRESTReadResource *http_op; int shard_id; RGWDataChangesLogInfo *shard_info; public: RGWReadRemoteDataLogShardInfoCR(RGWDataSyncEnv *_sync_env, int _shard_id, RGWDataChangesLogInfo *_shard_info) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), http_op(NULL), shard_id(_shard_id), shard_info(_shard_info) { } ~RGWReadRemoteDataLogShardInfoCR() override { if (http_op) { http_op->put(); } } int operate() override { reenter(this) { yield { char buf[16]; snprintf(buf, sizeof(buf), "%d", shard_id); rgw_http_param_pair pairs[] = { { "type" , "data" }, { "id", buf }, { "info" , NULL }, { NULL, NULL } }; string p = "/admin/log/"; http_op = new RGWRESTReadResource(sync_env->conn, p, pairs, NULL, sync_env->http_manager); http_op->set_user_info((void *)stack); int ret = http_op->aio_read(); if (ret < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to read from " << p << dendl; log_error() << "failed to send http operation: " << http_op->to_str() << " ret=" << ret << std::endl; return set_cr_error(ret); } return io_block(0); } yield { int ret = http_op->wait(shard_info); if (ret < 0) { return set_cr_error(ret); } return set_cr_done(); } } return 0; } }; struct read_remote_data_log_response { string marker; bool truncated; list entries; read_remote_data_log_response() : truncated(false) {} void decode_json(JSONObj *obj) { JSONDecoder::decode_json("marker", marker, obj); JSONDecoder::decode_json("truncated", truncated, obj); JSONDecoder::decode_json("entries", entries, obj); }; }; class RGWReadRemoteDataLogShardCR : public RGWCoroutine { RGWDataSyncEnv *sync_env; RGWRESTReadResource *http_op; int shard_id; string *pmarker; list *entries; bool *truncated; read_remote_data_log_response response; public: RGWReadRemoteDataLogShardCR(RGWDataSyncEnv *_sync_env, int _shard_id, string *_pmarker, list *_entries, bool *_truncated) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), http_op(NULL), shard_id(_shard_id), pmarker(_pmarker), entries(_entries), truncated(_truncated) { } ~RGWReadRemoteDataLogShardCR() override { if (http_op) { http_op->put(); } } int operate() override { reenter(this) { yield { char buf[16]; snprintf(buf, sizeof(buf), "%d", shard_id); rgw_http_param_pair pairs[] = { { "type" , "data" }, { "id", buf }, { "marker", pmarker->c_str() }, { "extra-info", "true" }, { NULL, NULL } }; string p = "/admin/log/"; http_op = new RGWRESTReadResource(sync_env->conn, p, pairs, NULL, sync_env->http_manager); http_op->set_user_info((void *)stack); int ret = http_op->aio_read(); if (ret < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to read from " << p << dendl; log_error() << "failed to send http operation: " << http_op->to_str() << " ret=" << ret << std::endl; return set_cr_error(ret); } return io_block(0); } yield { int ret = http_op->wait(&response); if (ret < 0) { return set_cr_error(ret); } entries->clear(); entries->swap(response.entries); *pmarker = response.marker; *truncated = response.truncated; return set_cr_done(); } } return 0; } }; class RGWReadRemoteDataLogInfoCR : public RGWShardCollectCR { RGWDataSyncEnv *sync_env; int num_shards; map *datalog_info; int shard_id; #define READ_DATALOG_MAX_CONCURRENT 10 public: RGWReadRemoteDataLogInfoCR(RGWDataSyncEnv *_sync_env, int _num_shards, map *_datalog_info) : RGWShardCollectCR(_sync_env->cct, READ_DATALOG_MAX_CONCURRENT), sync_env(_sync_env), num_shards(_num_shards), datalog_info(_datalog_info), shard_id(0) {} bool spawn_next() override; }; bool RGWReadRemoteDataLogInfoCR::spawn_next() { if (shard_id >= num_shards) { return false; } spawn(new RGWReadRemoteDataLogShardInfoCR(sync_env, shard_id, &(*datalog_info)[shard_id]), false); shard_id++; return true; } class RGWListRemoteDataLogShardCR : public RGWSimpleCoroutine { RGWDataSyncEnv *sync_env; RGWRESTReadResource *http_op; int shard_id; string marker; uint32_t max_entries; rgw_datalog_shard_data *result; public: RGWListRemoteDataLogShardCR(RGWDataSyncEnv *env, int _shard_id, const string& _marker, uint32_t _max_entries, rgw_datalog_shard_data *_result) : RGWSimpleCoroutine(env->store->ctx()), sync_env(env), http_op(NULL), shard_id(_shard_id), marker(_marker), max_entries(_max_entries), result(_result) {} int send_request() override { RGWRESTConn *conn = sync_env->conn; RGWRados *store = sync_env->store; char buf[32]; snprintf(buf, sizeof(buf), "%d", shard_id); char max_entries_buf[32]; snprintf(max_entries_buf, sizeof(max_entries_buf), "%d", (int)max_entries); const char *marker_key = (marker.empty() ? "" : "marker"); rgw_http_param_pair pairs[] = { { "type", "data" }, { "id", buf }, { "max-entries", max_entries_buf }, { marker_key, marker.c_str() }, { NULL, NULL } }; string p = "/admin/log/"; http_op = new RGWRESTReadResource(conn, p, pairs, NULL, sync_env->http_manager); http_op->set_user_info((void *)stack); int ret = http_op->aio_read(); if (ret < 0) { ldout(store->ctx(), 0) << "ERROR: failed to read from " << p << dendl; log_error() << "failed to send http operation: " << http_op->to_str() << " ret=" << ret << std::endl; http_op->put(); return ret; } return 0; } int request_complete() override { int ret = http_op->wait(result); http_op->put(); if (ret < 0 && ret != -ENOENT) { ldout(sync_env->store->ctx(), 0) << "ERROR: failed to list remote datalog shard, ret=" << ret << dendl; return ret; } return 0; } }; class RGWListRemoteDataLogCR : public RGWShardCollectCR { RGWDataSyncEnv *sync_env; map shards; int max_entries_per_shard; map *result; map::iterator iter; #define READ_DATALOG_MAX_CONCURRENT 10 public: RGWListRemoteDataLogCR(RGWDataSyncEnv *_sync_env, map& _shards, int _max_entries_per_shard, map *_result) : RGWShardCollectCR(_sync_env->cct, READ_DATALOG_MAX_CONCURRENT), sync_env(_sync_env), max_entries_per_shard(_max_entries_per_shard), result(_result) { shards.swap(_shards); iter = shards.begin(); } bool spawn_next() override; }; bool RGWListRemoteDataLogCR::spawn_next() { if (iter == shards.end()) { return false; } spawn(new RGWListRemoteDataLogShardCR(sync_env, iter->first, iter->second, max_entries_per_shard, &(*result)[iter->first]), false); ++iter; return true; } class RGWInitDataSyncStatusCoroutine : public RGWCoroutine { static constexpr uint32_t lock_duration = 30; RGWDataSyncEnv *sync_env; RGWRados *store; const rgw_pool& pool; const uint32_t num_shards; string sync_status_oid; string lock_name; string cookie; rgw_data_sync_status *status; map shards_info; public: RGWInitDataSyncStatusCoroutine(RGWDataSyncEnv *_sync_env, uint32_t num_shards, uint64_t instance_id, rgw_data_sync_status *status) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), store(sync_env->store), pool(store->get_zone_params().log_pool), num_shards(num_shards), status(status) { lock_name = "sync_lock"; status->sync_info.instance_id = instance_id; #define COOKIE_LEN 16 char buf[COOKIE_LEN + 1]; gen_rand_alphanumeric(cct, buf, sizeof(buf) - 1); cookie = buf; sync_status_oid = RGWDataSyncStatusManager::sync_status_oid(sync_env->source_zone); } int operate() override { int ret; reenter(this) { using LockCR = RGWSimpleRadosLockCR; yield call(new LockCR(sync_env->async_rados, store, rgw_raw_obj{pool, sync_status_oid}, lock_name, cookie, lock_duration)); if (retcode < 0) { ldout(cct, 0) << "ERROR: failed to take a lock on " << sync_status_oid << dendl; return set_cr_error(retcode); } using WriteInfoCR = RGWSimpleRadosWriteCR; yield call(new WriteInfoCR(sync_env->async_rados, store, rgw_raw_obj{pool, sync_status_oid}, status->sync_info)); if (retcode < 0) { ldout(cct, 0) << "ERROR: failed to write sync status info with " << retcode << dendl; return set_cr_error(retcode); } /* take lock again, we just recreated the object */ yield call(new LockCR(sync_env->async_rados, store, rgw_raw_obj{pool, sync_status_oid}, lock_name, cookie, lock_duration)); if (retcode < 0) { ldout(cct, 0) << "ERROR: failed to take a lock on " << sync_status_oid << dendl; return set_cr_error(retcode); } /* fetch current position in logs */ yield { RGWRESTConn *conn = store->get_zone_conn_by_id(sync_env->source_zone); if (!conn) { ldout(cct, 0) << "ERROR: connection to zone " << sync_env->source_zone << " does not exist!" << dendl; return set_cr_error(-EIO); } for (uint32_t i = 0; i < num_shards; i++) { spawn(new RGWReadRemoteDataLogShardInfoCR(sync_env, i, &shards_info[i]), true); } } while (collect(&ret, NULL)) { if (ret < 0) { ldout(cct, 0) << "ERROR: failed to read remote data log shards" << dendl; return set_state(RGWCoroutine_Error); } yield; } yield { for (uint32_t i = 0; i < num_shards; i++) { RGWDataChangesLogInfo& info = shards_info[i]; auto& marker = status->sync_markers[i]; marker.next_step_marker = info.marker; marker.timestamp = info.last_update; const auto& oid = RGWDataSyncStatusManager::shard_obj_name(sync_env->source_zone, i); using WriteMarkerCR = RGWSimpleRadosWriteCR; spawn(new WriteMarkerCR(sync_env->async_rados, store, rgw_raw_obj{pool, oid}, marker), true); } } while (collect(&ret, NULL)) { if (ret < 0) { ldout(cct, 0) << "ERROR: failed to write data sync status markers" << dendl; return set_state(RGWCoroutine_Error); } yield; } status->sync_info.state = rgw_data_sync_info::StateBuildingFullSyncMaps; yield call(new WriteInfoCR(sync_env->async_rados, store, rgw_raw_obj{pool, sync_status_oid}, status->sync_info)); if (retcode < 0) { ldout(cct, 0) << "ERROR: failed to write sync status info with " << retcode << dendl; return set_cr_error(retcode); } yield call(new RGWSimpleRadosUnlockCR(sync_env->async_rados, store, rgw_raw_obj{pool, sync_status_oid}, lock_name, cookie)); return set_cr_done(); } return 0; } }; int RGWRemoteDataLog::read_log_info(rgw_datalog_info *log_info) { rgw_http_param_pair pairs[] = { { "type", "data" }, { NULL, NULL } }; int ret = sync_env.conn->get_json_resource("/admin/log", pairs, *log_info); if (ret < 0) { ldout(store->ctx(), 0) << "ERROR: failed to fetch datalog info" << dendl; return ret; } ldout(store->ctx(), 20) << "remote datalog, num_shards=" << log_info->num_shards << dendl; return 0; } int RGWRemoteDataLog::read_source_log_shards_info(map *shards_info) { rgw_datalog_info log_info; int ret = read_log_info(&log_info); if (ret < 0) { return ret; } return run(new RGWReadRemoteDataLogInfoCR(&sync_env, log_info.num_shards, shards_info)); } int RGWRemoteDataLog::read_source_log_shards_next(map shard_markers, map *result) { if (store->is_meta_master()) { return 0; } return run(new RGWListRemoteDataLogCR(&sync_env, shard_markers, 1, result)); } int RGWRemoteDataLog::init(const string& _source_zone, RGWRESTConn *_conn, RGWSyncErrorLogger *_error_logger, RGWSyncModuleInstanceRef& _sync_module) { sync_env.init(store->ctx(), store, _conn, async_rados, &http_manager, _error_logger, _source_zone, _sync_module); if (initialized) { return 0; } int ret = http_manager.set_threaded(); if (ret < 0) { ldout(store->ctx(), 0) << "failed in http_manager.set_threaded() ret=" << ret << dendl; return ret; } initialized = true; return 0; } void RGWRemoteDataLog::finish() { stop(); } int RGWRemoteDataLog::read_sync_status(rgw_data_sync_status *sync_status) { // cannot run concurrently with run_sync(), so run in a separate manager RGWCoroutinesManager crs(store->ctx(), store->get_cr_registry()); RGWHTTPManager http_manager(store->ctx(), crs.get_completion_mgr()); int ret = http_manager.set_threaded(); if (ret < 0) { ldout(store->ctx(), 0) << "failed in http_manager.set_threaded() ret=" << ret << dendl; return ret; } RGWDataSyncEnv sync_env_local = sync_env; sync_env_local.http_manager = &http_manager; ret = crs.run(new RGWReadDataSyncStatusCoroutine(&sync_env_local, sync_status)); http_manager.stop(); return ret; } int RGWRemoteDataLog::init_sync_status(int num_shards) { rgw_data_sync_status sync_status; RGWCoroutinesManager crs(store->ctx(), store->get_cr_registry()); RGWHTTPManager http_manager(store->ctx(), crs.get_completion_mgr()); int ret = http_manager.set_threaded(); if (ret < 0) { ldout(store->ctx(), 0) << "failed in http_manager.set_threaded() ret=" << ret << dendl; return ret; } RGWDataSyncEnv sync_env_local = sync_env; sync_env_local.http_manager = &http_manager; uint64_t instance_id; get_random_bytes((char *)&instance_id, sizeof(instance_id)); ret = crs.run(new RGWInitDataSyncStatusCoroutine(&sync_env_local, num_shards, instance_id, &sync_status)); http_manager.stop(); return ret; } static string full_data_sync_index_shard_oid(const string& source_zone, int shard_id) { char buf[datalog_sync_full_sync_index_prefix.size() + 1 + source_zone.size() + 1 + 16]; snprintf(buf, sizeof(buf), "%s.%s.%d", datalog_sync_full_sync_index_prefix.c_str(), source_zone.c_str(), shard_id); return string(buf); } struct bucket_instance_meta_info { string key; obj_version ver; utime_t mtime; RGWBucketInstanceMetadataObject data; bucket_instance_meta_info() {} void decode_json(JSONObj *obj) { JSONDecoder::decode_json("key", key, obj); JSONDecoder::decode_json("ver", ver, obj); JSONDecoder::decode_json("mtime", mtime, obj); JSONDecoder::decode_json("data", data, obj); } }; class RGWListBucketIndexesCR : public RGWCoroutine { RGWDataSyncEnv *sync_env; RGWRados *store; rgw_data_sync_status *sync_status; int num_shards; int req_ret; int ret; list result; list::iterator iter; RGWShardedOmapCRManager *entries_index; string oid_prefix; string path; bucket_instance_meta_info meta_info; string key; string s; int i; bool failed; public: RGWListBucketIndexesCR(RGWDataSyncEnv *_sync_env, rgw_data_sync_status *_sync_status) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), store(sync_env->store), sync_status(_sync_status), req_ret(0), ret(0), entries_index(NULL), i(0), failed(false) { oid_prefix = datalog_sync_full_sync_index_prefix + "." + sync_env->source_zone; path = "/admin/metadata/bucket.instance"; num_shards = sync_status->sync_info.num_shards; } ~RGWListBucketIndexesCR() override { delete entries_index; } int operate() override { reenter(this) { yield { string entrypoint = string("/admin/metadata/bucket.instance"); /* FIXME: need a better scaling solution here, requires streaming output */ call(new RGWReadRESTResourceCR >(store->ctx(), sync_env->conn, sync_env->http_manager, entrypoint, NULL, &result)); } if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to fetch metadata for section bucket.index" << dendl; return set_cr_error(retcode); } entries_index = new RGWShardedOmapCRManager(sync_env->async_rados, store, this, num_shards, store->get_zone_params().log_pool, oid_prefix); yield; // yield so OmapAppendCRs can start for (iter = result.begin(); iter != result.end(); ++iter) { ldout(sync_env->cct, 20) << "list metadata: section=bucket.index key=" << *iter << dendl; key = *iter; yield { rgw_http_param_pair pairs[] = { { "key", key.c_str() }, { NULL, NULL } }; call(new RGWReadRESTResourceCR(store->ctx(), sync_env->conn, sync_env->http_manager, path, pairs, &meta_info)); } num_shards = meta_info.data.get_bucket_info().num_shards; if (num_shards > 0) { for (i = 0; i < num_shards; i++) { char buf[16]; snprintf(buf, sizeof(buf), ":%d", i); s = key + buf; yield entries_index->append(s, store->data_log->get_log_shard_id(meta_info.data.get_bucket_info().bucket, i)); } } else { yield entries_index->append(key, store->data_log->get_log_shard_id(meta_info.data.get_bucket_info().bucket, -1)); } } yield { if (!entries_index->finish()) { failed = true; } } if (!failed) { for (map::iterator iter = sync_status->sync_markers.begin(); iter != sync_status->sync_markers.end(); ++iter) { int shard_id = (int)iter->first; rgw_data_sync_marker& marker = iter->second; marker.total_entries = entries_index->get_total_entries(shard_id); spawn(new RGWSimpleRadosWriteCR(sync_env->async_rados, store, rgw_raw_obj(store->get_zone_params().log_pool, RGWDataSyncStatusManager::shard_obj_name(sync_env->source_zone, shard_id)), marker), true); } } else { yield call(sync_env->error_logger->log_error_cr(sync_env->conn->get_remote_id(), "data.init", "", EIO, string("failed to build bucket instances map"))); } while (collect(&ret, NULL)) { if (ret < 0) { yield call(sync_env->error_logger->log_error_cr(sync_env->conn->get_remote_id(), "data.init", "", -ret, string("failed to store sync status: ") + cpp_strerror(-ret))); req_ret = ret; } yield; } drain_all(); if (req_ret < 0) { yield return set_cr_error(req_ret); } yield return set_cr_done(); } return 0; } }; #define DATA_SYNC_UPDATE_MARKER_WINDOW 1 class RGWDataSyncShardMarkerTrack : public RGWSyncShardMarkerTrack { RGWDataSyncEnv *sync_env; string marker_oid; rgw_data_sync_marker sync_marker; map key_to_marker; map marker_to_key; void handle_finish(const string& marker) override { map::iterator iter = marker_to_key.find(marker); if (iter == marker_to_key.end()) { return; } key_to_marker.erase(iter->second); reset_need_retry(iter->second); marker_to_key.erase(iter); } public: RGWDataSyncShardMarkerTrack(RGWDataSyncEnv *_sync_env, const string& _marker_oid, const rgw_data_sync_marker& _marker) : RGWSyncShardMarkerTrack(DATA_SYNC_UPDATE_MARKER_WINDOW), sync_env(_sync_env), marker_oid(_marker_oid), sync_marker(_marker) {} RGWCoroutine *store_marker(const string& new_marker, uint64_t index_pos, const real_time& timestamp) override { sync_marker.marker = new_marker; sync_marker.pos = index_pos; ldout(sync_env->cct, 20) << __func__ << "(): updating marker marker_oid=" << marker_oid << " marker=" << new_marker << dendl; RGWRados *store = sync_env->store; return new RGWSimpleRadosWriteCR(sync_env->async_rados, store, rgw_raw_obj(store->get_zone_params().log_pool, marker_oid), sync_marker); } /* * create index from key -> marker, and from marker -> key * this is useful so that we can insure that we only have one * entry for any key that is used. This is needed when doing * incremenatl sync of data, and we don't want to run multiple * concurrent sync operations for the same bucket shard */ bool index_key_to_marker(const string& key, const string& marker) { if (key_to_marker.find(key) != key_to_marker.end()) { set_need_retry(key); return false; } key_to_marker[key] = marker; marker_to_key[marker] = key; return true; } }; // ostream wrappers to print buckets without copying strings struct bucket_str { const rgw_bucket& b; bucket_str(const rgw_bucket& b) : b(b) {} }; std::ostream& operator<<(std::ostream& out, const bucket_str& rhs) { auto& b = rhs.b; if (!b.tenant.empty()) { out << b.tenant << '/'; } out << b.name; if (!b.bucket_id.empty()) { out << ':' << b.bucket_id; } return out; } struct bucket_shard_str { const rgw_bucket_shard& bs; bucket_shard_str(const rgw_bucket_shard& bs) : bs(bs) {} }; std::ostream& operator<<(std::ostream& out, const bucket_shard_str& rhs) { auto& bs = rhs.bs; out << bucket_str{bs.bucket}; if (bs.shard_id >= 0) { out << ':' << bs.shard_id; } return out; } class RGWRunBucketSyncCoroutine : public RGWCoroutine { RGWDataSyncEnv *sync_env; rgw_bucket_shard bs; RGWBucketInfo bucket_info; rgw_bucket_shard_sync_info sync_status; RGWMetaSyncEnv meta_sync_env; RGWDataSyncDebugLogger logger; const std::string status_oid; boost::intrusive_ptr lease_cr; boost::intrusive_ptr lease_stack; public: RGWRunBucketSyncCoroutine(RGWDataSyncEnv *_sync_env, const rgw_bucket_shard& bs) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), bs(bs), status_oid(RGWBucketSyncStatusManager::status_oid(sync_env->source_zone, bs)) { logger.init(sync_env, "Bucket", bs.get_key()); } ~RGWRunBucketSyncCoroutine() override { if (lease_cr) { lease_cr->abort(); } } int operate() override; }; class RGWDataSyncSingleEntryCR : public RGWCoroutine { RGWDataSyncEnv *sync_env; string raw_key; string entry_marker; rgw_bucket_shard bs; int sync_status; bufferlist md_bl; RGWDataSyncShardMarkerTrack *marker_tracker; boost::intrusive_ptr error_repo; bool remove_from_repo; set keys; public: RGWDataSyncSingleEntryCR(RGWDataSyncEnv *_sync_env, const string& _raw_key, const string& _entry_marker, RGWDataSyncShardMarkerTrack *_marker_tracker, RGWOmapAppend *_error_repo, bool _remove_from_repo) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), raw_key(_raw_key), entry_marker(_entry_marker), sync_status(0), marker_tracker(_marker_tracker), error_repo(_error_repo), remove_from_repo(_remove_from_repo) { set_description() << "data sync single entry (source_zone=" << sync_env->source_zone << ") key=" <<_raw_key << " entry=" << entry_marker; } int operate() override { reenter(this) { do { yield { int ret = rgw_bucket_parse_bucket_key(sync_env->cct, raw_key, &bs.bucket, &bs.shard_id); if (ret < 0) { return set_cr_error(-EIO); } if (marker_tracker) { marker_tracker->reset_need_retry(raw_key); } call(new RGWRunBucketSyncCoroutine(sync_env, bs)); } } while (marker_tracker && marker_tracker->need_retry(raw_key)); sync_status = retcode; if (sync_status == -ENOENT) { // this was added when 'tenant/' was added to datalog entries, because // preexisting tenant buckets could never sync and would stay in the // error_repo forever ldout(sync_env->store->ctx(), 0) << "WARNING: skipping data log entry " "for missing bucket " << raw_key << dendl; sync_status = 0; } if (sync_status < 0) { yield call(sync_env->error_logger->log_error_cr(sync_env->conn->get_remote_id(), "data", raw_key, -sync_status, string("failed to sync bucket instance: ") + cpp_strerror(-sync_status))); if (retcode < 0) { ldout(sync_env->store->ctx(), 0) << "ERROR: failed to log sync failure: retcode=" << retcode << dendl; } if (error_repo && !error_repo->append(raw_key)) { ldout(sync_env->store->ctx(), 0) << "ERROR: failed to log sync failure in error repo: retcode=" << retcode << dendl; } } else if (error_repo && remove_from_repo) { keys = {raw_key}; yield call(new RGWRadosRemoveOmapKeysCR(sync_env->store, error_repo->get_obj(), keys)); if (retcode < 0) { ldout(sync_env->store->ctx(), 0) << "ERROR: failed to remove omap key from error repo (" << error_repo->get_obj() << " retcode=" << retcode << dendl; } } /* FIXME: what do do in case of error */ if (marker_tracker && !entry_marker.empty()) { /* update marker */ yield call(marker_tracker->finish(entry_marker)); } if (sync_status == 0) { sync_status = retcode; } if (sync_status < 0) { return set_cr_error(sync_status); } return set_cr_done(); } return 0; } }; #define BUCKET_SHARD_SYNC_SPAWN_WINDOW 20 #define DATA_SYNC_MAX_ERR_ENTRIES 10 enum RemoteDatalogStatus { RemoteNotTrimmed = 0, RemoteTrimmed = 1, RemoteMightTrimmed = 2 }; class RGWDataSyncShardCR : public RGWCoroutine { RGWDataSyncEnv *sync_env; rgw_pool pool; uint32_t shard_id; rgw_data_sync_marker sync_marker; map entries; map::iterator iter; string oid; RGWDataSyncShardMarkerTrack *marker_tracker; list log_entries; list::iterator log_iter; bool truncated; RGWDataChangesLogInfo shard_info; string datalog_marker; RemoteDatalogStatus remote_trimmed; Mutex inc_lock; Cond inc_cond; boost::asio::coroutine incremental_cr; boost::asio::coroutine full_cr; set modified_shards; set current_modified; set::iterator modified_iter; int total_entries; int spawn_window; bool *reset_backoff; set spawned_keys; boost::intrusive_ptr lease_cr; boost::intrusive_ptr lease_stack; string status_oid; string error_oid; RGWOmapAppend *error_repo; map error_entries; string error_marker; int max_error_entries; ceph::real_time error_retry_time; #define RETRY_BACKOFF_SECS_MIN 60 #define RETRY_BACKOFF_SECS_DEFAULT 60 #define RETRY_BACKOFF_SECS_MAX 600 uint32_t retry_backoff_secs; RGWDataSyncDebugLogger logger; public: RGWDataSyncShardCR(RGWDataSyncEnv *_sync_env, rgw_pool& _pool, uint32_t _shard_id, rgw_data_sync_marker& _marker, bool *_reset_backoff) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), pool(_pool), shard_id(_shard_id), sync_marker(_marker), marker_tracker(NULL), truncated(false), remote_trimmed(RemoteNotTrimmed), inc_lock("RGWDataSyncShardCR::inc_lock"), total_entries(0), spawn_window(BUCKET_SHARD_SYNC_SPAWN_WINDOW), reset_backoff(NULL), lease_cr(nullptr), lease_stack(nullptr), error_repo(nullptr), max_error_entries(DATA_SYNC_MAX_ERR_ENTRIES), retry_backoff_secs(RETRY_BACKOFF_SECS_DEFAULT) { set_description() << "data sync shard source_zone=" << sync_env->source_zone << " shard_id=" << shard_id; status_oid = RGWDataSyncStatusManager::shard_obj_name(sync_env->source_zone, shard_id); error_oid = status_oid + ".retry"; logger.init(sync_env, "DataShard", status_oid); } ~RGWDataSyncShardCR() override { delete marker_tracker; if (lease_cr) { lease_cr->abort(); } if (error_repo) { error_repo->put(); } } void append_modified_shards(set& keys) { Mutex::Locker l(inc_lock); modified_shards.insert(keys.begin(), keys.end()); } void set_marker_tracker(RGWDataSyncShardMarkerTrack *mt) { delete marker_tracker; marker_tracker = mt; } int operate() override { int r; while (true) { switch (sync_marker.state) { case rgw_data_sync_marker::FullSync: r = full_sync(); if (r < 0) { ldout(cct, 10) << "sync: full_sync: shard_id=" << shard_id << " r=" << r << dendl; return set_cr_error(r); } return 0; case rgw_data_sync_marker::IncrementalSync: r = incremental_sync(); if (r < 0) { ldout(cct, 10) << "sync: incremental_sync: shard_id=" << shard_id << " r=" << r << dendl; return set_cr_error(r); } return 0; default: return set_cr_error(-EIO); } } return 0; } void init_lease_cr() { set_status("acquiring sync lock"); uint32_t lock_duration = cct->_conf->rgw_sync_lease_period; string lock_name = "sync_lock"; if (lease_cr) { lease_cr->abort(); } RGWRados *store = sync_env->store; lease_cr.reset(new RGWContinuousLeaseCR(sync_env->async_rados, store, rgw_raw_obj(store->get_zone_params().log_pool, status_oid), lock_name, lock_duration, this)); lease_stack.reset(spawn(lease_cr.get(), false)); } int full_sync() { #define OMAP_GET_MAX_ENTRIES 100 int max_entries = OMAP_GET_MAX_ENTRIES; reenter(&full_cr) { yield init_lease_cr(); while (!lease_cr->is_locked()) { if (lease_cr->is_done()) { ldout(cct, 5) << "lease cr failed, done early " << dendl; set_status("lease lock failed, early abort"); return set_cr_error(lease_cr->get_ret_status()); } set_sleeping(true); yield; } logger.log("full sync"); oid = full_data_sync_index_shard_oid(sync_env->source_zone, shard_id); set_marker_tracker(new RGWDataSyncShardMarkerTrack(sync_env, status_oid, sync_marker)); total_entries = sync_marker.pos; do { yield call(new RGWRadosGetOmapKeysCR(sync_env->store, rgw_raw_obj(pool, oid), sync_marker.marker, &entries, max_entries)); if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: " << __func__ << "(): RGWRadosGetOmapKeysCR() returned ret=" << retcode << dendl; lease_cr->go_down(); drain_all(); return set_cr_error(retcode); } iter = entries.begin(); for (; iter != entries.end(); ++iter) { ldout(sync_env->cct, 20) << __func__ << ": full sync: " << iter->first << dendl; total_entries++; if (!marker_tracker->start(iter->first, total_entries, real_time())) { ldout(sync_env->cct, 0) << "ERROR: cannot start syncing " << iter->first << ". Duplicate entry?" << dendl; } else { // fetch remote and write locally yield spawn(new RGWDataSyncSingleEntryCR(sync_env, iter->first, iter->first, marker_tracker, error_repo, false), false); if (retcode < 0) { lease_cr->go_down(); drain_all(); return set_cr_error(retcode); } } sync_marker.marker = iter->first; } } while ((int)entries.size() == max_entries); lease_cr->go_down(); drain_all(); yield { /* update marker to reflect we're done with full sync */ sync_marker.state = rgw_data_sync_marker::IncrementalSync; sync_marker.marker = sync_marker.next_step_marker; sync_marker.next_step_marker.clear(); RGWRados *store = sync_env->store; call(new RGWSimpleRadosWriteCR(sync_env->async_rados, store, rgw_raw_obj(store->get_zone_params().log_pool, status_oid), sync_marker)); } if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to set sync marker: retcode=" << retcode << dendl; lease_cr->go_down(); return set_cr_error(retcode); } } return 0; } int incremental_sync() { reenter(&incremental_cr) { yield init_lease_cr(); while (!lease_cr->is_locked()) { if (lease_cr->is_done()) { ldout(cct, 5) << "lease cr failed, done early " << dendl; set_status("lease lock failed, early abort"); return set_cr_error(lease_cr->get_ret_status()); } set_sleeping(true); yield; } set_status("lease acquired"); error_repo = new RGWOmapAppend(sync_env->async_rados, sync_env->store, rgw_raw_obj(pool, error_oid), 1 /* no buffer */); error_repo->get(); spawn(error_repo, false); logger.log("inc sync"); set_marker_tracker(new RGWDataSyncShardMarkerTrack(sync_env, status_oid, sync_marker)); do { current_modified.clear(); inc_lock.Lock(); current_modified.swap(modified_shards); inc_lock.Unlock(); /* process out of band updates */ for (modified_iter = current_modified.begin(); modified_iter != current_modified.end(); ++modified_iter) { yield { ldout(sync_env->cct, 20) << __func__ << "(): async update notification: " << *modified_iter << dendl; spawn(new RGWDataSyncSingleEntryCR(sync_env, *modified_iter, string(), marker_tracker, error_repo, false), false); } } /* process bucket shards that previously failed */ yield call(new RGWRadosGetOmapKeysCR(sync_env->store, rgw_raw_obj(pool, error_oid), error_marker, &error_entries, max_error_entries)); ldout(sync_env->cct, 20) << __func__ << "(): read error repo, got " << error_entries.size() << " entries" << dendl; iter = error_entries.begin(); for (; iter != error_entries.end(); ++iter) { ldout(sync_env->cct, 20) << __func__ << "(): handle error entry: " << iter->first << dendl; spawn(new RGWDataSyncSingleEntryCR(sync_env, iter->first, iter->first, nullptr /* no marker tracker */, error_repo, true), false); error_marker = iter->first; } if ((int)error_entries.size() != max_error_entries) { if (error_marker.empty() && error_entries.empty()) { /* the retry repo is empty, we back off a bit before calling it again */ retry_backoff_secs *= 2; if (retry_backoff_secs > RETRY_BACKOFF_SECS_MAX) { retry_backoff_secs = RETRY_BACKOFF_SECS_MAX; } } else { retry_backoff_secs = RETRY_BACKOFF_SECS_DEFAULT; } error_retry_time = ceph::real_clock::now() + make_timespan(retry_backoff_secs); error_marker.clear(); } yield call(new RGWReadRemoteDataLogShardInfoCR(sync_env, shard_id, &shard_info)); if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to fetch remote data log info: ret=" << retcode << dendl; stop_spawned_services(); drain_all(); return set_cr_error(retcode); } datalog_marker = shard_info.marker; remote_trimmed = RemoteNotTrimmed; #define INCREMENTAL_MAX_ENTRIES 100 ldout(sync_env->cct, 20) << __func__ << ":" << __LINE__ << ": shard_id=" << shard_id << " datalog_marker=" << datalog_marker << " sync_marker.marker=" << sync_marker.marker << dendl; if (datalog_marker > sync_marker.marker) { spawned_keys.clear(); if (sync_marker.marker.empty()) remote_trimmed = RemoteMightTrimmed; //remote data log shard might be trimmed; yield call(new RGWReadRemoteDataLogShardCR(sync_env, shard_id, &sync_marker.marker, &log_entries, &truncated)); if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to read remote data log info: ret=" << retcode << dendl; stop_spawned_services(); drain_all(); return set_cr_error(retcode); } if ((remote_trimmed == RemoteMightTrimmed) && sync_marker.marker.empty() && log_entries.empty()) remote_trimmed = RemoteTrimmed; else remote_trimmed = RemoteNotTrimmed; for (log_iter = log_entries.begin(); log_iter != log_entries.end(); ++log_iter) { ldout(sync_env->cct, 20) << __func__ << ":" << __LINE__ << ": shard_id=" << shard_id << " log_entry: " << log_iter->log_id << ":" << log_iter->log_timestamp << ":" << log_iter->entry.key << dendl; if (!marker_tracker->index_key_to_marker(log_iter->entry.key, log_iter->log_id)) { ldout(sync_env->cct, 20) << __func__ << ": skipping sync of entry: " << log_iter->log_id << ":" << log_iter->entry.key << " sync already in progress for bucket shard" << dendl; marker_tracker->try_update_high_marker(log_iter->log_id, 0, log_iter->log_timestamp); continue; } if (!marker_tracker->start(log_iter->log_id, 0, log_iter->log_timestamp)) { ldout(sync_env->cct, 0) << "ERROR: cannot start syncing " << log_iter->log_id << ". Duplicate entry?" << dendl; } else { /* * don't spawn the same key more than once. We can do that as long as we don't yield */ if (spawned_keys.find(log_iter->entry.key) == spawned_keys.end()) { spawned_keys.insert(log_iter->entry.key); spawn(new RGWDataSyncSingleEntryCR(sync_env, log_iter->entry.key, log_iter->log_id, marker_tracker, error_repo, false), false); if (retcode < 0) { stop_spawned_services(); drain_all(); return set_cr_error(retcode); } } } } while ((int)num_spawned() > spawn_window) { set_status() << "num_spawned() > spawn_window"; yield wait_for_child(); int ret; while (collect(&ret, lease_stack.get())) { if (ret < 0) { ldout(sync_env->cct, 0) << "ERROR: a sync operation returned error" << dendl; /* we have reported this error */ } /* not waiting for child here */ } } } ldout(sync_env->cct, 20) << __func__ << ":" << __LINE__ << ": shard_id=" << shard_id << " datalog_marker=" << datalog_marker << " sync_marker.marker=" << sync_marker.marker << dendl; if (datalog_marker == sync_marker.marker || remote_trimmed == RemoteTrimmed) { #define INCREMENTAL_INTERVAL 20 yield wait(utime_t(INCREMENTAL_INTERVAL, 0)); } } while (true); } return 0; } void stop_spawned_services() { lease_cr->go_down(); if (error_repo) { error_repo->finish(); error_repo->put(); error_repo = NULL; } } }; class RGWDataSyncShardControlCR : public RGWBackoffControlCR { RGWDataSyncEnv *sync_env; rgw_pool pool; uint32_t shard_id; rgw_data_sync_marker sync_marker; public: RGWDataSyncShardControlCR(RGWDataSyncEnv *_sync_env, rgw_pool& _pool, uint32_t _shard_id, rgw_data_sync_marker& _marker) : RGWBackoffControlCR(_sync_env->cct, false), sync_env(_sync_env), pool(_pool), shard_id(_shard_id), sync_marker(_marker) { } RGWCoroutine *alloc_cr() override { return new RGWDataSyncShardCR(sync_env, pool, shard_id, sync_marker, backoff_ptr()); } RGWCoroutine *alloc_finisher_cr() override { RGWRados *store = sync_env->store; return new RGWSimpleRadosReadCR(sync_env->async_rados, store, rgw_raw_obj(store->get_zone_params().log_pool, RGWDataSyncStatusManager::shard_obj_name(sync_env->source_zone, shard_id)), &sync_marker); } void append_modified_shards(set& keys) { Mutex::Locker l(cr_lock()); RGWDataSyncShardCR *cr = static_cast(get_cr()); if (!cr) { return; } cr->append_modified_shards(keys); } }; class RGWDataSyncCR : public RGWCoroutine { RGWDataSyncEnv *sync_env; uint32_t num_shards; rgw_data_sync_status sync_status; RGWDataSyncShardMarkerTrack *marker_tracker; Mutex shard_crs_lock; map shard_crs; bool *reset_backoff; RGWDataSyncDebugLogger logger; RGWDataSyncModule *data_sync_module{nullptr}; public: RGWDataSyncCR(RGWDataSyncEnv *_sync_env, uint32_t _num_shards, bool *_reset_backoff) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), num_shards(_num_shards), marker_tracker(NULL), shard_crs_lock("RGWDataSyncCR::shard_crs_lock"), reset_backoff(_reset_backoff), logger(sync_env, "Data", "all") { } ~RGWDataSyncCR() override { for (auto iter : shard_crs) { iter.second->put(); } } int operate() override { reenter(this) { /* read sync status */ yield call(new RGWReadDataSyncStatusCoroutine(sync_env, &sync_status)); data_sync_module = sync_env->sync_module->get_data_handler(); if (retcode < 0 && retcode != -ENOENT) { ldout(sync_env->cct, 0) << "ERROR: failed to fetch sync status, retcode=" << retcode << dendl; return set_cr_error(retcode); } /* state: init status */ if ((rgw_data_sync_info::SyncState)sync_status.sync_info.state == rgw_data_sync_info::StateInit) { ldout(sync_env->cct, 20) << __func__ << "(): init" << dendl; sync_status.sync_info.num_shards = num_shards; uint64_t instance_id; get_random_bytes((char *)&instance_id, sizeof(instance_id)); yield call(new RGWInitDataSyncStatusCoroutine(sync_env, num_shards, instance_id, &sync_status)); if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to init sync, retcode=" << retcode << dendl; return set_cr_error(retcode); } // sets state = StateBuildingFullSyncMaps *reset_backoff = true; } data_sync_module->init(sync_env, sync_status.sync_info.instance_id); if ((rgw_data_sync_info::SyncState)sync_status.sync_info.state == rgw_data_sync_info::StateBuildingFullSyncMaps) { /* call sync module init here */ yield call(data_sync_module->init_sync(sync_env)); if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: sync module init_sync() failed, retcode=" << retcode << dendl; return set_cr_error(retcode); } /* state: building full sync maps */ ldout(sync_env->cct, 20) << __func__ << "(): building full sync maps" << dendl; yield call(new RGWListBucketIndexesCR(sync_env, &sync_status)); if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to build full sync maps, retcode=" << retcode << dendl; return set_cr_error(retcode); } sync_status.sync_info.state = rgw_data_sync_info::StateSync; /* update new state */ yield call(set_sync_info_cr()); if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to write sync status, retcode=" << retcode << dendl; return set_cr_error(retcode); } *reset_backoff = true; } yield { if ((rgw_data_sync_info::SyncState)sync_status.sync_info.state == rgw_data_sync_info::StateSync) { for (map::iterator iter = sync_status.sync_markers.begin(); iter != sync_status.sync_markers.end(); ++iter) { RGWDataSyncShardControlCR *cr = new RGWDataSyncShardControlCR(sync_env, sync_env->store->get_zone_params().log_pool, iter->first, iter->second); cr->get(); shard_crs_lock.Lock(); shard_crs[iter->first] = cr; shard_crs_lock.Unlock(); spawn(cr, true); } } } return set_cr_done(); } return 0; } RGWCoroutine *set_sync_info_cr() { RGWRados *store = sync_env->store; return new RGWSimpleRadosWriteCR(sync_env->async_rados, store, rgw_raw_obj(store->get_zone_params().log_pool, RGWDataSyncStatusManager::sync_status_oid(sync_env->source_zone)), sync_status.sync_info); } void wakeup(int shard_id, set& keys) { Mutex::Locker l(shard_crs_lock); map::iterator iter = shard_crs.find(shard_id); if (iter == shard_crs.end()) { return; } iter->second->append_modified_shards(keys); iter->second->wakeup(); } }; class RGWDefaultDataSyncModule : public RGWDataSyncModule { public: RGWDefaultDataSyncModule() {} RGWCoroutine *sync_object(RGWDataSyncEnv *sync_env, RGWBucketInfo& bucket_info, rgw_obj_key& key, uint64_t versioned_epoch, rgw_zone_set *zones_trace) override; RGWCoroutine *remove_object(RGWDataSyncEnv *sync_env, RGWBucketInfo& bucket_info, rgw_obj_key& key, real_time& mtime, bool versioned, uint64_t versioned_epoch, rgw_zone_set *zones_trace) override; RGWCoroutine *create_delete_marker(RGWDataSyncEnv *sync_env, RGWBucketInfo& bucket_info, rgw_obj_key& key, real_time& mtime, rgw_bucket_entry_owner& owner, bool versioned, uint64_t versioned_epoch, rgw_zone_set *zones_trace) override; }; class RGWDefaultSyncModuleInstance : public RGWSyncModuleInstance { RGWDefaultDataSyncModule data_handler; public: RGWDefaultSyncModuleInstance() {} RGWDataSyncModule *get_data_handler() override { return &data_handler; } }; int RGWDefaultSyncModule::create_instance(CephContext *cct, map& config, RGWSyncModuleInstanceRef *instance) { instance->reset(new RGWDefaultSyncModuleInstance()); return 0; } RGWCoroutine *RGWDefaultDataSyncModule::sync_object(RGWDataSyncEnv *sync_env, RGWBucketInfo& bucket_info, rgw_obj_key& key, uint64_t versioned_epoch, rgw_zone_set *zones_trace) { return new RGWFetchRemoteObjCR(sync_env->async_rados, sync_env->store, sync_env->source_zone, bucket_info, key, versioned_epoch, true, zones_trace); } RGWCoroutine *RGWDefaultDataSyncModule::remove_object(RGWDataSyncEnv *sync_env, RGWBucketInfo& bucket_info, rgw_obj_key& key, real_time& mtime, bool versioned, uint64_t versioned_epoch, rgw_zone_set *zones_trace) { return new RGWRemoveObjCR(sync_env->async_rados, sync_env->store, sync_env->source_zone, bucket_info, key, versioned, versioned_epoch, NULL, NULL, false, &mtime, zones_trace); } RGWCoroutine *RGWDefaultDataSyncModule::create_delete_marker(RGWDataSyncEnv *sync_env, RGWBucketInfo& bucket_info, rgw_obj_key& key, real_time& mtime, rgw_bucket_entry_owner& owner, bool versioned, uint64_t versioned_epoch, rgw_zone_set *zones_trace) { return new RGWRemoveObjCR(sync_env->async_rados, sync_env->store, sync_env->source_zone, bucket_info, key, versioned, versioned_epoch, &owner.id, &owner.display_name, true, &mtime, zones_trace); } class RGWDataSyncControlCR : public RGWBackoffControlCR { RGWDataSyncEnv *sync_env; uint32_t num_shards; static constexpr bool exit_on_error = false; // retry on all errors public: RGWDataSyncControlCR(RGWDataSyncEnv *_sync_env, uint32_t _num_shards) : RGWBackoffControlCR(_sync_env->cct, exit_on_error), sync_env(_sync_env), num_shards(_num_shards) { } RGWCoroutine *alloc_cr() override { return new RGWDataSyncCR(sync_env, num_shards, backoff_ptr()); } void wakeup(int shard_id, set& keys) { Mutex& m = cr_lock(); m.Lock(); RGWDataSyncCR *cr = static_cast(get_cr()); if (!cr) { m.Unlock(); return; } cr->get(); m.Unlock(); if (cr) { cr->wakeup(shard_id, keys); } cr->put(); } }; void RGWRemoteDataLog::wakeup(int shard_id, set& keys) { RWLock::RLocker rl(lock); if (!data_sync_cr) { return; } data_sync_cr->wakeup(shard_id, keys); } int RGWRemoteDataLog::run_sync(int num_shards) { lock.get_write(); data_sync_cr = new RGWDataSyncControlCR(&sync_env, num_shards); data_sync_cr->get(); // run() will drop a ref, so take another lock.unlock(); int r = run(data_sync_cr); lock.get_write(); data_sync_cr->put(); data_sync_cr = NULL; lock.unlock(); if (r < 0) { ldout(store->ctx(), 0) << "ERROR: failed to run sync" << dendl; return r; } return 0; } int RGWDataSyncStatusManager::init() { auto zone_def_iter = store->zone_by_id.find(source_zone); if (zone_def_iter == store->zone_by_id.end()) { ldout(store->ctx(), 0) << "ERROR: failed to find zone config info for zone=" << source_zone << dendl; return -EIO; } auto& zone_def = zone_def_iter->second; if (!store->get_sync_modules_manager()->supports_data_export(zone_def.tier_type)) { return -ENOTSUP; } RGWZoneParams& zone_params = store->get_zone_params(); sync_module = store->get_sync_module(); conn = store->get_zone_conn_by_id(source_zone); if (!conn) { ldout(store->ctx(), 0) << "connection object to zone " << source_zone << " does not exist" << dendl; return -EINVAL; } error_logger = new RGWSyncErrorLogger(store, RGW_SYNC_ERROR_LOG_SHARD_PREFIX, ERROR_LOGGER_SHARDS); int r = source_log.init(source_zone, conn, error_logger, sync_module); if (r < 0) { lderr(store->ctx()) << "ERROR: failed to init remote log, r=" << r << dendl; finalize(); return r; } rgw_datalog_info datalog_info; r = source_log.read_log_info(&datalog_info); if (r < 0) { ldout(store->ctx(), 5) << "ERROR: master.read_log_info() returned r=" << r << dendl; finalize(); return r; } num_shards = datalog_info.num_shards; for (int i = 0; i < num_shards; i++) { shard_objs[i] = rgw_raw_obj(zone_params.log_pool, shard_obj_name(source_zone, i)); } return 0; } void RGWDataSyncStatusManager::finalize() { delete error_logger; error_logger = nullptr; } string RGWDataSyncStatusManager::sync_status_oid(const string& source_zone) { char buf[datalog_sync_status_oid_prefix.size() + source_zone.size() + 16]; snprintf(buf, sizeof(buf), "%s.%s", datalog_sync_status_oid_prefix.c_str(), source_zone.c_str()); return string(buf); } string RGWDataSyncStatusManager::shard_obj_name(const string& source_zone, int shard_id) { char buf[datalog_sync_status_shard_prefix.size() + source_zone.size() + 16]; snprintf(buf, sizeof(buf), "%s.%s.%d", datalog_sync_status_shard_prefix.c_str(), source_zone.c_str(), shard_id); return string(buf); } int RGWRemoteBucketLog::init(const string& _source_zone, RGWRESTConn *_conn, const rgw_bucket& bucket, int shard_id, RGWSyncErrorLogger *_error_logger, RGWSyncModuleInstanceRef& _sync_module) { conn = _conn; source_zone = _source_zone; bs.bucket = bucket; bs.shard_id = shard_id; sync_env.init(store->ctx(), store, conn, async_rados, http_manager, _error_logger, source_zone, _sync_module); return 0; } struct bucket_index_marker_info { string bucket_ver; string master_ver; string max_marker; bool syncstopped{false}; void decode_json(JSONObj *obj) { JSONDecoder::decode_json("bucket_ver", bucket_ver, obj); JSONDecoder::decode_json("master_ver", master_ver, obj); JSONDecoder::decode_json("max_marker", max_marker, obj); JSONDecoder::decode_json("syncstopped", syncstopped, obj); } }; class RGWReadRemoteBucketIndexLogInfoCR : public RGWCoroutine { RGWDataSyncEnv *sync_env; const string instance_key; bucket_index_marker_info *info; public: RGWReadRemoteBucketIndexLogInfoCR(RGWDataSyncEnv *_sync_env, const rgw_bucket_shard& bs, bucket_index_marker_info *_info) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), instance_key(bs.get_key()), info(_info) {} int operate() override { reenter(this) { yield { rgw_http_param_pair pairs[] = { { "type" , "bucket-index" }, { "bucket-instance", instance_key.c_str() }, { "info" , NULL }, { NULL, NULL } }; string p = "/admin/log/"; call(new RGWReadRESTResourceCR(sync_env->cct, sync_env->conn, sync_env->http_manager, p, pairs, info)); } if (retcode < 0) { return set_cr_error(retcode); } return set_cr_done(); } return 0; } }; class RGWInitBucketShardSyncStatusCoroutine : public RGWCoroutine { RGWDataSyncEnv *sync_env; rgw_bucket_shard bs; const string sync_status_oid; rgw_bucket_shard_sync_info& status; bucket_index_marker_info info; public: RGWInitBucketShardSyncStatusCoroutine(RGWDataSyncEnv *_sync_env, const rgw_bucket_shard& bs, rgw_bucket_shard_sync_info& _status) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), bs(bs), sync_status_oid(RGWBucketSyncStatusManager::status_oid(sync_env->source_zone, bs)), status(_status) {} int operate() override { reenter(this) { /* fetch current position in logs */ yield call(new RGWReadRemoteBucketIndexLogInfoCR(sync_env, bs, &info)); if (retcode < 0 && retcode != -ENOENT) { ldout(cct, 0) << "ERROR: failed to fetch bucket index status" << dendl; return set_cr_error(retcode); } yield { auto store = sync_env->store; rgw_raw_obj obj(store->get_zone_params().log_pool, sync_status_oid); if (info.syncstopped) { call(new RGWRadosRemoveCR(store, obj)); } else { status.state = rgw_bucket_shard_sync_info::StateFullSync; status.inc_marker.position = info.max_marker; map attrs; status.encode_all_attrs(attrs); call(new RGWSimpleRadosWriteAttrsCR(sync_env->async_rados, store, obj, attrs)); } } return set_cr_done(); } return 0; } }; RGWCoroutine *RGWRemoteBucketLog::init_sync_status_cr() { return new RGWInitBucketShardSyncStatusCoroutine(&sync_env, bs, init_status); } template static void decode_attr(CephContext *cct, map& attrs, const string& attr_name, T *val) { map::iterator iter = attrs.find(attr_name); if (iter == attrs.end()) { *val = T(); return; } bufferlist::iterator biter = iter->second.begin(); try { ::decode(*val, biter); } catch (buffer::error& err) { ldout(cct, 0) << "ERROR: failed to decode attribute: " << attr_name << dendl; } } void rgw_bucket_shard_sync_info::decode_from_attrs(CephContext *cct, map& attrs) { decode_attr(cct, attrs, "state", &state); decode_attr(cct, attrs, "full_marker", &full_marker); decode_attr(cct, attrs, "inc_marker", &inc_marker); } void rgw_bucket_shard_sync_info::encode_all_attrs(map& attrs) { encode_state_attr(attrs); full_marker.encode_attr(attrs); inc_marker.encode_attr(attrs); } void rgw_bucket_shard_sync_info::encode_state_attr(map& attrs) { ::encode(state, attrs["state"]); } void rgw_bucket_shard_full_sync_marker::encode_attr(map& attrs) { ::encode(*this, attrs["full_marker"]); } void rgw_bucket_shard_inc_sync_marker::encode_attr(map& attrs) { ::encode(*this, attrs["inc_marker"]); } class RGWReadBucketSyncStatusCoroutine : public RGWCoroutine { RGWDataSyncEnv *sync_env; string oid; rgw_bucket_shard_sync_info *status; map attrs; public: RGWReadBucketSyncStatusCoroutine(RGWDataSyncEnv *_sync_env, const rgw_bucket_shard& bs, rgw_bucket_shard_sync_info *_status) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), oid(RGWBucketSyncStatusManager::status_oid(sync_env->source_zone, bs)), status(_status) {} int operate() override; }; int RGWReadBucketSyncStatusCoroutine::operate() { reenter(this) { yield call(new RGWSimpleRadosReadAttrsCR(sync_env->async_rados, sync_env->store, rgw_raw_obj(sync_env->store->get_zone_params().log_pool, oid), &attrs)); if (retcode == -ENOENT) { *status = rgw_bucket_shard_sync_info(); return set_cr_done(); } if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to call fetch bucket shard info oid=" << oid << " ret=" << retcode << dendl; return set_cr_error(retcode); } status->decode_from_attrs(sync_env->cct, attrs); return set_cr_done(); } return 0; } RGWCoroutine *RGWRemoteBucketLog::read_sync_status_cr(rgw_bucket_shard_sync_info *sync_status) { return new RGWReadBucketSyncStatusCoroutine(&sync_env, bs, sync_status); } RGWBucketSyncStatusManager::~RGWBucketSyncStatusManager() { for (map::iterator iter = source_logs.begin(); iter != source_logs.end(); ++iter) { delete iter->second; } delete error_logger; } void rgw_bucket_entry_owner::decode_json(JSONObj *obj) { JSONDecoder::decode_json("ID", id, obj); JSONDecoder::decode_json("DisplayName", display_name, obj); } struct bucket_list_entry { bool delete_marker; rgw_obj_key key; bool is_latest; real_time mtime; string etag; uint64_t size; string storage_class; rgw_bucket_entry_owner owner; uint64_t versioned_epoch; string rgw_tag; bucket_list_entry() : delete_marker(false), is_latest(false), size(0), versioned_epoch(0) {} void decode_json(JSONObj *obj) { JSONDecoder::decode_json("IsDeleteMarker", delete_marker, obj); JSONDecoder::decode_json("Key", key.name, obj); JSONDecoder::decode_json("VersionId", key.instance, obj); JSONDecoder::decode_json("IsLatest", is_latest, obj); string mtime_str; JSONDecoder::decode_json("RgwxMtime", mtime_str, obj); struct tm t; uint32_t nsec; if (parse_iso8601(mtime_str.c_str(), &t, &nsec)) { ceph_timespec ts; ts.tv_sec = (uint64_t)internal_timegm(&t); ts.tv_nsec = nsec; mtime = real_clock::from_ceph_timespec(ts); } JSONDecoder::decode_json("ETag", etag, obj); JSONDecoder::decode_json("Size", size, obj); JSONDecoder::decode_json("StorageClass", storage_class, obj); JSONDecoder::decode_json("Owner", owner, obj); JSONDecoder::decode_json("VersionedEpoch", versioned_epoch, obj); JSONDecoder::decode_json("RgwxTag", rgw_tag, obj); } }; struct bucket_list_result { string name; string prefix; string key_marker; string version_id_marker; int max_keys; bool is_truncated; list entries; bucket_list_result() : max_keys(0), is_truncated(false) {} void decode_json(JSONObj *obj) { JSONDecoder::decode_json("Name", name, obj); JSONDecoder::decode_json("Prefix", prefix, obj); JSONDecoder::decode_json("KeyMarker", key_marker, obj); JSONDecoder::decode_json("VersionIdMarker", version_id_marker, obj); JSONDecoder::decode_json("MaxKeys", max_keys, obj); JSONDecoder::decode_json("IsTruncated", is_truncated, obj); JSONDecoder::decode_json("Entries", entries, obj); } }; class RGWListBucketShardCR: public RGWCoroutine { RGWDataSyncEnv *sync_env; const rgw_bucket_shard& bs; const string instance_key; rgw_obj_key marker_position; bucket_list_result *result; public: RGWListBucketShardCR(RGWDataSyncEnv *_sync_env, const rgw_bucket_shard& bs, rgw_obj_key& _marker_position, bucket_list_result *_result) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), bs(bs), instance_key(bs.get_key()), marker_position(_marker_position), result(_result) {} int operate() override { reenter(this) { yield { rgw_http_param_pair pairs[] = { { "rgwx-bucket-instance", instance_key.c_str() }, { "versions" , NULL }, { "format" , "json" }, { "objs-container" , "true" }, { "key-marker" , marker_position.name.c_str() }, { "version-id-marker" , marker_position.instance.c_str() }, { NULL, NULL } }; // don't include tenant in the url, it's already part of instance_key string p = string("/") + bs.bucket.name; call(new RGWReadRESTResourceCR(sync_env->cct, sync_env->conn, sync_env->http_manager, p, pairs, result)); } if (retcode < 0) { return set_cr_error(retcode); } return set_cr_done(); } return 0; } }; class RGWListBucketIndexLogCR: public RGWCoroutine { RGWDataSyncEnv *sync_env; const string instance_key; string marker; list *result; public: RGWListBucketIndexLogCR(RGWDataSyncEnv *_sync_env, const rgw_bucket_shard& bs, string& _marker, list *_result) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), instance_key(bs.get_key()), marker(_marker), result(_result) {} int operate() override { reenter(this) { yield { rgw_http_param_pair pairs[] = { { "bucket-instance", instance_key.c_str() }, { "format" , "json" }, { "marker" , marker.c_str() }, { "type", "bucket-index" }, { NULL, NULL } }; call(new RGWReadRESTResourceCR >(sync_env->cct, sync_env->conn, sync_env->http_manager, "/admin/log", pairs, result)); } if (retcode < 0) { return set_cr_error(retcode); } return set_cr_done(); } return 0; } }; #define BUCKET_SYNC_UPDATE_MARKER_WINDOW 10 class RGWBucketFullSyncShardMarkerTrack : public RGWSyncShardMarkerTrack { RGWDataSyncEnv *sync_env; string marker_oid; rgw_bucket_shard_full_sync_marker sync_marker; public: RGWBucketFullSyncShardMarkerTrack(RGWDataSyncEnv *_sync_env, const string& _marker_oid, const rgw_bucket_shard_full_sync_marker& _marker) : RGWSyncShardMarkerTrack(BUCKET_SYNC_UPDATE_MARKER_WINDOW), sync_env(_sync_env), marker_oid(_marker_oid), sync_marker(_marker) {} RGWCoroutine *store_marker(const rgw_obj_key& new_marker, uint64_t index_pos, const real_time& timestamp) override { sync_marker.position = new_marker; sync_marker.count = index_pos; map attrs; sync_marker.encode_attr(attrs); RGWRados *store = sync_env->store; ldout(sync_env->cct, 20) << __func__ << "(): updating marker marker_oid=" << marker_oid << " marker=" << new_marker << dendl; return new RGWSimpleRadosWriteAttrsCR(sync_env->async_rados, store, rgw_raw_obj(store->get_zone_params().log_pool, marker_oid), attrs); } }; class RGWBucketIncSyncShardMarkerTrack : public RGWSyncShardMarkerTrack { RGWDataSyncEnv *sync_env; string marker_oid; rgw_bucket_shard_inc_sync_marker sync_marker; map key_to_marker; map marker_to_key; void handle_finish(const string& marker) override { map::iterator iter = marker_to_key.find(marker); if (iter == marker_to_key.end()) { return; } key_to_marker.erase(iter->second); reset_need_retry(iter->second); marker_to_key.erase(iter); } public: RGWBucketIncSyncShardMarkerTrack(RGWDataSyncEnv *_sync_env, const string& _marker_oid, const rgw_bucket_shard_inc_sync_marker& _marker) : RGWSyncShardMarkerTrack(BUCKET_SYNC_UPDATE_MARKER_WINDOW), sync_env(_sync_env), marker_oid(_marker_oid), sync_marker(_marker) {} RGWCoroutine *store_marker(const string& new_marker, uint64_t index_pos, const real_time& timestamp) override { sync_marker.position = new_marker; map attrs; sync_marker.encode_attr(attrs); RGWRados *store = sync_env->store; ldout(sync_env->cct, 20) << __func__ << "(): updating marker marker_oid=" << marker_oid << " marker=" << new_marker << dendl; return new RGWSimpleRadosWriteAttrsCR(sync_env->async_rados, store, rgw_raw_obj(store->get_zone_params().log_pool, marker_oid), attrs); } /* * create index from key -> , and from marker -> key * this is useful so that we can insure that we only have one * entry for any key that is used. This is needed when doing * incremenatl sync of data, and we don't want to run multiple * concurrent sync operations for the same bucket shard * Also, we should make sure that we don't run concurrent operations on the same key with * different ops. */ bool index_key_to_marker(const rgw_obj_key& key, const string& marker) { if (key_to_marker.find(key) != key_to_marker.end()) { set_need_retry(key); return false; } key_to_marker[key] = marker; marker_to_key[marker] = key; return true; } bool can_do_op(const rgw_obj_key& key) { return (key_to_marker.find(key) == key_to_marker.end()); } }; template class RGWBucketSyncSingleEntryCR : public RGWCoroutine { RGWDataSyncEnv *sync_env; RGWBucketInfo *bucket_info; const rgw_bucket_shard& bs; rgw_obj_key key; bool versioned; uint64_t versioned_epoch; rgw_bucket_entry_owner owner; real_time timestamp; RGWModifyOp op; RGWPendingState op_state; T entry_marker; RGWSyncShardMarkerTrack *marker_tracker; int sync_status; stringstream error_ss; RGWDataSyncDebugLogger logger; bool error_injection; RGWDataSyncModule *data_sync_module; rgw_zone_set zones_trace; public: RGWBucketSyncSingleEntryCR(RGWDataSyncEnv *_sync_env, RGWBucketInfo *_bucket_info, const rgw_bucket_shard& bs, const rgw_obj_key& _key, bool _versioned, uint64_t _versioned_epoch, real_time& _timestamp, const rgw_bucket_entry_owner& _owner, RGWModifyOp _op, RGWPendingState _op_state, const T& _entry_marker, RGWSyncShardMarkerTrack *_marker_tracker, rgw_zone_set& _zones_trace) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), bucket_info(_bucket_info), bs(bs), key(_key), versioned(_versioned), versioned_epoch(_versioned_epoch), owner(_owner), timestamp(_timestamp), op(_op), op_state(_op_state), entry_marker(_entry_marker), marker_tracker(_marker_tracker), sync_status(0){ stringstream ss; ss << bucket_shard_str{bs} << "/" << key << "[" << versioned_epoch << "]"; set_description() << "bucket sync single entry (source_zone=" << sync_env->source_zone << ") b=" << ss.str() << " log_entry=" << entry_marker << " op=" << (int)op << " op_state=" << (int)op_state; ldout(sync_env->cct, 20) << "bucket sync single entry (source_zone=" << sync_env->source_zone << ") b=" << ss.str() << " log_entry=" << entry_marker << " op=" << (int)op << " op_state=" << (int)op_state << dendl; set_status("init"); logger.init(sync_env, "Object", ss.str()); error_injection = (sync_env->cct->_conf->rgw_sync_data_inject_err_probability > 0); data_sync_module = sync_env->sync_module->get_data_handler(); zones_trace = _zones_trace; zones_trace.insert(sync_env->store->get_zone().id); } int operate() override { reenter(this) { /* skip entries that are not complete */ if (op_state != CLS_RGW_STATE_COMPLETE) { goto done; } do { yield { marker_tracker->reset_need_retry(key); if (key.name.empty()) { /* shouldn't happen */ set_status("skipping empty entry"); ldout(sync_env->cct, 0) << "ERROR: " << __func__ << "(): entry with empty obj name, skipping" << dendl; goto done; } if (error_injection && rand() % 10000 < cct->_conf->rgw_sync_data_inject_err_probability * 10000.0) { ldout(sync_env->cct, 0) << __func__ << ": injecting data sync error on key=" << key.name << dendl; retcode = -EIO; } else if (op == CLS_RGW_OP_ADD || op == CLS_RGW_OP_LINK_OLH) { if (op == CLS_RGW_OP_ADD && !key.instance.empty() && key.instance != "null") { set_status("skipping entry"); ldout(sync_env->cct, 10) << "bucket skipping sync obj: " << sync_env->source_zone << "/" << bucket_info->bucket << "/" << key << "[" << versioned_epoch << "]: versioned object will be synced on link_olh" << dendl; goto done; } set_status("syncing obj"); ldout(sync_env->cct, 5) << "bucket sync: sync obj: " << sync_env->source_zone << "/" << bucket_info->bucket << "/" << key << "[" << versioned_epoch << "]" << dendl; logger.log("fetch"); call(data_sync_module->sync_object(sync_env, *bucket_info, key, versioned_epoch, &zones_trace)); } else if (op == CLS_RGW_OP_DEL || op == CLS_RGW_OP_UNLINK_INSTANCE) { set_status("removing obj"); if (op == CLS_RGW_OP_UNLINK_INSTANCE) { versioned = true; } logger.log("remove"); call(data_sync_module->remove_object(sync_env, *bucket_info, key, timestamp, versioned, versioned_epoch, &zones_trace)); } else if (op == CLS_RGW_OP_LINK_OLH_DM) { logger.log("creating delete marker"); set_status("creating delete marker"); ldout(sync_env->cct, 10) << "creating delete marker: obj: " << sync_env->source_zone << "/" << bucket_info->bucket << "/" << key << "[" << versioned_epoch << "]" << dendl; call(data_sync_module->create_delete_marker(sync_env, *bucket_info, key, timestamp, owner, versioned, versioned_epoch, &zones_trace)); } } } while (marker_tracker->need_retry(key)); { stringstream ss; if (retcode >= 0) { ss << "done"; } else { ss << "done, retcode=" << retcode; } logger.log(ss.str()); } if (retcode < 0 && retcode != -ENOENT) { set_status() << "failed to sync obj; retcode=" << retcode; ldout(sync_env->cct, 0) << "ERROR: failed to sync object: " << bucket_shard_str{bs} << "/" << key.name << dendl; error_ss << bucket_shard_str{bs} << "/" << key.name; sync_status = retcode; } if (!error_ss.str().empty()) { yield call(sync_env->error_logger->log_error_cr(sync_env->conn->get_remote_id(), "data", error_ss.str(), -retcode, "failed to sync object")); } done: if (sync_status == 0) { /* update marker */ set_status() << "calling marker_tracker->finish(" << entry_marker << ")"; yield call(marker_tracker->finish(entry_marker)); sync_status = retcode; } if (sync_status < 0) { return set_cr_error(sync_status); } return set_cr_done(); } return 0; } }; #define BUCKET_SYNC_SPAWN_WINDOW 20 class RGWBucketShardFullSyncCR : public RGWCoroutine { RGWDataSyncEnv *sync_env; const rgw_bucket_shard& bs; RGWBucketInfo *bucket_info; boost::intrusive_ptr lease_cr; bucket_list_result list_result; list::iterator entries_iter; rgw_bucket_shard_full_sync_marker& full_marker; RGWBucketFullSyncShardMarkerTrack marker_tracker; rgw_obj_key list_marker; bucket_list_entry *entry{nullptr}; RGWModifyOp op{CLS_RGW_OP_ADD}; int total_entries{0}; int sync_status{0}; const string& status_oid; RGWDataSyncDebugLogger logger; rgw_zone_set zones_trace; public: RGWBucketShardFullSyncCR(RGWDataSyncEnv *_sync_env, const rgw_bucket_shard& bs, RGWBucketInfo *_bucket_info, const std::string& status_oid, RGWContinuousLeaseCR *lease_cr, rgw_bucket_shard_full_sync_marker& _full_marker) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), bs(bs), bucket_info(_bucket_info), lease_cr(lease_cr), full_marker(_full_marker), marker_tracker(sync_env, status_oid, full_marker), status_oid(status_oid) { logger.init(sync_env, "BucketFull", bs.get_key()); zones_trace.insert(sync_env->source_zone); } int operate() override; }; int RGWBucketShardFullSyncCR::operate() { int ret; reenter(this) { list_marker = full_marker.position; total_entries = full_marker.count; do { if (!lease_cr->is_locked()) { drain_all(); return set_cr_error(-ECANCELED); } set_status("listing remote bucket"); ldout(sync_env->cct, 20) << __func__ << "(): listing bucket for full sync" << dendl; yield call(new RGWListBucketShardCR(sync_env, bs, list_marker, &list_result)); if (retcode < 0 && retcode != -ENOENT) { set_status("failed bucket listing, going down"); drain_all(); return set_cr_error(retcode); } entries_iter = list_result.entries.begin(); for (; entries_iter != list_result.entries.end(); ++entries_iter) { if (!lease_cr->is_locked()) { drain_all(); return set_cr_error(-ECANCELED); } ldout(sync_env->cct, 20) << "[full sync] syncing object: " << bucket_shard_str{bs} << "/" << entries_iter->key << dendl; entry = &(*entries_iter); total_entries++; list_marker = entries_iter->key; if (!marker_tracker.start(entry->key, total_entries, real_time())) { ldout(sync_env->cct, 0) << "ERROR: cannot start syncing " << entry->key << ". Duplicate entry?" << dendl; } else { op = (entry->key.instance.empty() || entry->key.instance == "null" ? CLS_RGW_OP_ADD : CLS_RGW_OP_LINK_OLH); using SyncCR = RGWBucketSyncSingleEntryCR; yield spawn(new SyncCR(sync_env, bucket_info, bs, entry->key, false, /* versioned, only matters for object removal */ entry->versioned_epoch, entry->mtime, entry->owner, op, CLS_RGW_STATE_COMPLETE, entry->key, &marker_tracker, zones_trace), false); } while (num_spawned() > BUCKET_SYNC_SPAWN_WINDOW) { yield wait_for_child(); bool again = true; while (again) { again = collect(&ret, nullptr); if (ret < 0) { ldout(sync_env->cct, 0) << "ERROR: a sync operation returned error" << dendl; sync_status = ret; /* we have reported this error */ } } } } } while (list_result.is_truncated && sync_status == 0); set_status("done iterating over all objects"); /* wait for all operations to complete */ while (num_spawned()) { yield wait_for_child(); bool again = true; while (again) { again = collect(&ret, nullptr); if (ret < 0) { ldout(sync_env->cct, 0) << "ERROR: a sync operation returned error" << dendl; sync_status = ret; /* we have reported this error */ } } } if (!lease_cr->is_locked()) { return set_cr_error(-ECANCELED); } /* update sync state to incremental */ if (sync_status == 0) { yield { rgw_bucket_shard_sync_info sync_status; sync_status.state = rgw_bucket_shard_sync_info::StateIncrementalSync; map attrs; sync_status.encode_state_attr(attrs); RGWRados *store = sync_env->store; call(new RGWSimpleRadosWriteAttrsCR(sync_env->async_rados, store, rgw_raw_obj(store->get_zone_params().log_pool, status_oid), attrs)); } } else { ldout(sync_env->cct, 0) << "ERROR: failure in sync, backing out (sync_status=" << sync_status<< ")" << dendl; } if (retcode < 0 && sync_status == 0) { /* actually tried to set incremental state and failed */ ldout(sync_env->cct, 0) << "ERROR: failed to set sync state on bucket " << bucket_shard_str{bs} << " retcode=" << retcode << dendl; return set_cr_error(retcode); } if (sync_status < 0) { return set_cr_error(sync_status); } return set_cr_done(); } return 0; } class RGWBucketShardIncrementalSyncCR : public RGWCoroutine { RGWDataSyncEnv *sync_env; const rgw_bucket_shard& bs; RGWBucketInfo *bucket_info; boost::intrusive_ptr lease_cr; list list_result; list::iterator entries_iter; map, pair > squash_map; rgw_bucket_shard_inc_sync_marker& inc_marker; rgw_obj_key key; rgw_bi_log_entry *entry{nullptr}; RGWBucketIncSyncShardMarkerTrack marker_tracker; bool updated_status{false}; const string& status_oid; const string& zone_id; ceph::real_time sync_modify_time; string cur_id; RGWDataSyncDebugLogger logger; int sync_status{0}; bool syncstopped{false}; public: RGWBucketShardIncrementalSyncCR(RGWDataSyncEnv *_sync_env, const rgw_bucket_shard& bs, RGWBucketInfo *_bucket_info, const std::string& status_oid, RGWContinuousLeaseCR *lease_cr, rgw_bucket_shard_inc_sync_marker& _inc_marker) : RGWCoroutine(_sync_env->cct), sync_env(_sync_env), bs(bs), bucket_info(_bucket_info), lease_cr(lease_cr), inc_marker(_inc_marker), marker_tracker(sync_env, status_oid, inc_marker), status_oid(status_oid) , zone_id(_sync_env->store->get_zone().id){ set_description() << "bucket shard incremental sync bucket=" << bucket_shard_str{bs}; set_status("init"); logger.init(sync_env, "BucketInc", bs.get_key()); } int operate() override; }; int RGWBucketShardIncrementalSyncCR::operate() { int ret; reenter(this) { do { if (!lease_cr->is_locked()) { drain_all(); return set_cr_error(-ECANCELED); } ldout(sync_env->cct, 20) << __func__ << "(): listing bilog for incremental sync" << inc_marker.position << dendl; set_status() << "listing bilog; position=" << inc_marker.position; yield call(new RGWListBucketIndexLogCR(sync_env, bs, inc_marker.position, &list_result)); if (retcode < 0 && retcode != -ENOENT ) { drain_all(); if (!syncstopped) { /* wait for all operations to complete */ return set_cr_error(retcode); } else { /* no need to retry */ break; } } squash_map.clear(); for (auto& e : list_result) { if (e.op == RGWModifyOp::CLS_RGW_OP_SYNCSTOP && (sync_modify_time < e.timestamp)) { ldout(sync_env->cct, 20) << " syncstop on " << e.timestamp << dendl; sync_modify_time = e.timestamp; syncstopped = true; continue; } if (e.op == RGWModifyOp::CLS_RGW_OP_RESYNC && (sync_modify_time < e.timestamp)) { ldout(sync_env->cct, 20) << " resync on " << e.timestamp << dendl; sync_modify_time = e.timestamp; syncstopped = false; continue; } if (e.state != CLS_RGW_STATE_COMPLETE) { continue; } if (e.zones_trace.find(zone_id) != e.zones_trace.end()) { continue; } auto& squash_entry = squash_map[make_pair(e.object, e.instance)]; if (squash_entry.first <= e.timestamp) { squash_entry = make_pair<>(e.timestamp, e.op); } } entries_iter = list_result.begin(); for (; entries_iter != list_result.end(); ++entries_iter) { if (!lease_cr->is_locked()) { drain_all(); return set_cr_error(-ECANCELED); } entry = &(*entries_iter); { ssize_t p = entry->id.find('#'); /* entries might have explicit shard info in them, e.g., 6#00000000004.94.3 */ if (p < 0) { cur_id = entry->id; } else { cur_id = entry->id.substr(p + 1); } } inc_marker.position = cur_id; if (entry->op == RGWModifyOp::CLS_RGW_OP_SYNCSTOP || entry->op == RGWModifyOp::CLS_RGW_OP_RESYNC) { ldout(sync_env->cct, 20) << "detected syncstop or resync on " << entries_iter->timestamp << " , skipping entry" << dendl; marker_tracker.try_update_high_marker(cur_id, 0, entry->timestamp); continue; } if (!key.set(rgw_obj_index_key{entry->object, entry->instance})) { set_status() << "parse_raw_oid() on " << entry->object << " returned false, skipping entry"; ldout(sync_env->cct, 20) << "parse_raw_oid() on " << entry->object << " returned false, skipping entry" << dendl; marker_tracker.try_update_high_marker(cur_id, 0, entry->timestamp); continue; } ldout(sync_env->cct, 20) << "parsed entry: id=" << cur_id << " iter->object=" << entry->object << " iter->instance=" << entry->instance << " name=" << key.name << " instance=" << key.instance << " ns=" << key.ns << dendl; if (!key.ns.empty()) { set_status() << "skipping entry in namespace: " << entry->object; ldout(sync_env->cct, 20) << "skipping entry in namespace: " << entry->object << dendl; marker_tracker.try_update_high_marker(cur_id, 0, entry->timestamp); continue; } set_status() << "got entry.id=" << cur_id << " key=" << key << " op=" << (int)entry->op; if (entry->op == CLS_RGW_OP_CANCEL) { set_status() << "canceled operation, skipping"; ldout(sync_env->cct, 20) << "[inc sync] skipping object: " << bucket_shard_str{bs} << "/" << key << ": canceled operation" << dendl; marker_tracker.try_update_high_marker(cur_id, 0, entry->timestamp); continue; } if (entry->state != CLS_RGW_STATE_COMPLETE) { set_status() << "non-complete operation, skipping"; ldout(sync_env->cct, 20) << "[inc sync] skipping object: " << bucket_shard_str{bs} << "/" << key << ": non-complete operation" << dendl; marker_tracker.try_update_high_marker(cur_id, 0, entry->timestamp); continue; } if (entry->zones_trace.find(zone_id) != entry->zones_trace.end()) { set_status() << "redundant operation, skipping"; ldout(sync_env->cct, 20) << "[inc sync] skipping object: " <timestamp); continue; } if (make_pair<>(entry->timestamp, entry->op) != squash_map[make_pair(entry->object, entry->instance)]) { set_status() << "squashed operation, skipping"; ldout(sync_env->cct, 20) << "[inc sync] skipping object: " << bucket_shard_str{bs} << "/" << key << ": squashed operation" << dendl; /* not updating high marker though */ continue; } ldout(sync_env->cct, 20) << "[inc sync] syncing object: " << bucket_shard_str{bs} << "/" << key << dendl; updated_status = false; while (!marker_tracker.can_do_op(key)) { if (!updated_status) { set_status() << "can't do op, conflicting inflight operation"; updated_status = true; } ldout(sync_env->cct, 5) << *this << ": [inc sync] can't do op on key=" << key << " need to wait for conflicting operation to complete" << dendl; yield wait_for_child(); bool again = true; while (again) { again = collect(&ret, nullptr); if (ret < 0) { ldout(sync_env->cct, 0) << "ERROR: a child operation returned error (ret=" << ret << ")" << dendl; sync_status = ret; /* we have reported this error */ } } } if (!marker_tracker.index_key_to_marker(key, cur_id)) { set_status() << "can't do op, sync already in progress for object"; ldout(sync_env->cct, 20) << __func__ << ": skipping sync of entry: " << cur_id << ":" << key << " sync already in progress for object" << dendl; marker_tracker.try_update_high_marker(cur_id, 0, entry->timestamp); continue; } // yield { set_status() << "start object sync"; if (!marker_tracker.start(cur_id, 0, entry->timestamp)) { ldout(sync_env->cct, 0) << "ERROR: cannot start syncing " << cur_id << ". Duplicate entry?" << dendl; } else { uint64_t versioned_epoch = 0; rgw_bucket_entry_owner owner(entry->owner, entry->owner_display_name); if (entry->ver.pool < 0) { versioned_epoch = entry->ver.epoch; } ldout(sync_env->cct, 20) << __func__ << "(): entry->timestamp=" << entry->timestamp << dendl; using SyncCR = RGWBucketSyncSingleEntryCR; spawn(new SyncCR(sync_env, bucket_info, bs, key, entry->is_versioned(), versioned_epoch, entry->timestamp, owner, entry->op, entry->state, cur_id, &marker_tracker, entry->zones_trace), false); } // } while (num_spawned() > BUCKET_SYNC_SPAWN_WINDOW) { set_status() << "num_spawned() > spawn_window"; yield wait_for_child(); bool again = true; while (again) { again = collect(&ret, nullptr); if (ret < 0) { ldout(sync_env->cct, 0) << "ERROR: a sync operation returned error" << dendl; sync_status = ret; /* we have reported this error */ } /* not waiting for child here */ } } } } while (!list_result.empty() && sync_status == 0); if (syncstopped) { drain_all(); yield { const string& oid = RGWBucketSyncStatusManager::status_oid(sync_env->source_zone, bs); RGWRados *store = sync_env->store; call(new RGWRadosRemoveCR(store, rgw_raw_obj{store->get_zone_params().log_pool, oid})); } lease_cr->abort(); return set_cr_done(); } while (num_spawned()) { yield wait_for_child(); bool again = true; while (again) { again = collect(&ret, nullptr); if (ret < 0) { ldout(sync_env->cct, 0) << "ERROR: a sync operation returned error" << dendl; sync_status = ret; /* we have reported this error */ } /* not waiting for child here */ } } yield call(marker_tracker.flush()); if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: marker_tracker.flush() returned retcode=" << retcode << dendl; return set_cr_error(retcode); } if (sync_status < 0) { ldout(sync_env->cct, 0) << "ERROR: failure in sync, backing out (sync_status=" << sync_status<< ")" << dendl; } /* wait for all operations to complete */ drain_all(); if (sync_status < 0) { return set_cr_error(sync_status); } return set_cr_done(); } return 0; } int RGWRunBucketSyncCoroutine::operate() { reenter(this) { yield { set_status("acquiring sync lock"); auto store = sync_env->store; lease_cr.reset(new RGWContinuousLeaseCR(sync_env->async_rados, store, rgw_raw_obj(store->get_zone_params().log_pool, status_oid), "sync_lock", cct->_conf->rgw_sync_lease_period, this)); lease_stack.reset(spawn(lease_cr.get(), false)); } while (!lease_cr->is_locked()) { if (lease_cr->is_done()) { ldout(cct, 5) << "lease cr failed, done early" << dendl; set_status("lease lock failed, early abort"); return set_cr_error(lease_cr->get_ret_status()); } set_sleeping(true); yield; } yield call(new RGWReadBucketSyncStatusCoroutine(sync_env, bs, &sync_status)); if (retcode < 0 && retcode != -ENOENT) { ldout(sync_env->cct, 0) << "ERROR: failed to read sync status for bucket=" << bucket_shard_str{bs} << dendl; lease_cr->go_down(); drain_all(); return set_cr_error(retcode); } ldout(sync_env->cct, 20) << __func__ << "(): sync status for bucket " << bucket_shard_str{bs} << ": " << sync_status.state << dendl; yield call(new RGWGetBucketInstanceInfoCR(sync_env->async_rados, sync_env->store, bs.bucket, &bucket_info)); if (retcode == -ENOENT) { /* bucket instance info has not been synced in yet, fetch it now */ yield { ldout(sync_env->cct, 10) << "no local info for bucket " << bucket_str{bs.bucket} << ": fetching metadata" << dendl; string raw_key = string("bucket.instance:") + bs.bucket.get_key(); meta_sync_env.init(cct, sync_env->store, sync_env->store->rest_master_conn, sync_env->async_rados, sync_env->http_manager, sync_env->error_logger); call(new RGWMetaSyncSingleEntryCR(&meta_sync_env, raw_key, string() /* no marker */, MDLOG_STATUS_COMPLETE, NULL /* no marker tracker */)); } if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to fetch bucket instance info for " << bucket_str{bs.bucket} << dendl; lease_cr->go_down(); drain_all(); return set_cr_error(retcode); } yield call(new RGWGetBucketInstanceInfoCR(sync_env->async_rados, sync_env->store, bs.bucket, &bucket_info)); } if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: failed to retrieve bucket info for bucket=" << bucket_str{bs.bucket} << dendl; lease_cr->go_down(); drain_all(); return set_cr_error(retcode); } if (sync_status.state == rgw_bucket_shard_sync_info::StateInit) { yield call(new RGWInitBucketShardSyncStatusCoroutine(sync_env, bs, sync_status)); if (retcode < 0) { ldout(sync_env->cct, 0) << "ERROR: init sync on " << bucket_shard_str{bs} << " failed, retcode=" << retcode << dendl; lease_cr->go_down(); drain_all(); return set_cr_error(retcode); } } if (sync_status.state == rgw_bucket_shard_sync_info::StateFullSync) { yield call(new RGWBucketShardFullSyncCR(sync_env, bs, &bucket_info, status_oid, lease_cr.get(), sync_status.full_marker)); if (retcode < 0) { ldout(sync_env->cct, 5) << "full sync on " << bucket_shard_str{bs} << " failed, retcode=" << retcode << dendl; lease_cr->go_down(); drain_all(); return set_cr_error(retcode); } sync_status.state = rgw_bucket_shard_sync_info::StateIncrementalSync; } if (sync_status.state == rgw_bucket_shard_sync_info::StateIncrementalSync) { yield call(new RGWBucketShardIncrementalSyncCR(sync_env, bs, &bucket_info, status_oid, lease_cr.get(), sync_status.inc_marker)); if (retcode < 0) { ldout(sync_env->cct, 5) << "incremental sync on " << bucket_shard_str{bs} << " failed, retcode=" << retcode << dendl; lease_cr->go_down(); drain_all(); return set_cr_error(retcode); } } lease_cr->go_down(); drain_all(); return set_cr_done(); } return 0; } RGWCoroutine *RGWRemoteBucketLog::run_sync_cr() { return new RGWRunBucketSyncCoroutine(&sync_env, bs); } int RGWBucketSyncStatusManager::init() { conn = store->get_zone_conn_by_id(source_zone); if (!conn) { ldout(store->ctx(), 0) << "connection object to zone " << source_zone << " does not exist" << dendl; return -EINVAL; } int ret = http_manager.set_threaded(); if (ret < 0) { ldout(store->ctx(), 0) << "failed in http_manager.set_threaded() ret=" << ret << dendl; return ret; } const string key = bucket.get_key(); rgw_http_param_pair pairs[] = { { "key", key.c_str() }, { NULL, NULL } }; string path = string("/admin/metadata/bucket.instance"); bucket_instance_meta_info result; ret = cr_mgr.run(new RGWReadRESTResourceCR(store->ctx(), conn, &http_manager, path, pairs, &result)); if (ret < 0) { ldout(store->ctx(), 0) << "ERROR: failed to fetch bucket metadata info from zone=" << source_zone << " path=" << path << " key=" << key << " ret=" << ret << dendl; return ret; } RGWBucketInfo& bi = result.data.get_bucket_info(); num_shards = bi.num_shards; error_logger = new RGWSyncErrorLogger(store, RGW_SYNC_ERROR_LOG_SHARD_PREFIX, ERROR_LOGGER_SHARDS); sync_module.reset(new RGWDefaultSyncModuleInstance()); int effective_num_shards = (num_shards ? num_shards : 1); auto async_rados = store->get_async_rados(); for (int i = 0; i < effective_num_shards; i++) { RGWRemoteBucketLog *l = new RGWRemoteBucketLog(store, this, async_rados, &http_manager); ret = l->init(source_zone, conn, bucket, (num_shards ? i : -1), error_logger, sync_module); if (ret < 0) { ldout(store->ctx(), 0) << "ERROR: failed to initialize RGWRemoteBucketLog object" << dendl; return ret; } source_logs[i] = l; } return 0; } int RGWBucketSyncStatusManager::init_sync_status() { list stacks; for (map::iterator iter = source_logs.begin(); iter != source_logs.end(); ++iter) { RGWCoroutinesStack *stack = new RGWCoroutinesStack(store->ctx(), &cr_mgr); RGWRemoteBucketLog *l = iter->second; stack->call(l->init_sync_status_cr()); stacks.push_back(stack); } return cr_mgr.run(stacks); } int RGWBucketSyncStatusManager::read_sync_status() { list stacks; for (map::iterator iter = source_logs.begin(); iter != source_logs.end(); ++iter) { RGWCoroutinesStack *stack = new RGWCoroutinesStack(store->ctx(), &cr_mgr); RGWRemoteBucketLog *l = iter->second; stack->call(l->read_sync_status_cr(&sync_status[iter->first])); stacks.push_back(stack); } int ret = cr_mgr.run(stacks); if (ret < 0) { ldout(store->ctx(), 0) << "ERROR: failed to read sync status for " << bucket_str{bucket} << dendl; return ret; } return 0; } int RGWBucketSyncStatusManager::run() { list stacks; for (map::iterator iter = source_logs.begin(); iter != source_logs.end(); ++iter) { RGWCoroutinesStack *stack = new RGWCoroutinesStack(store->ctx(), &cr_mgr); RGWRemoteBucketLog *l = iter->second; stack->call(l->run_sync_cr()); stacks.push_back(stack); } int ret = cr_mgr.run(stacks); if (ret < 0) { ldout(store->ctx(), 0) << "ERROR: failed to read sync status for " << bucket_str{bucket} << dendl; return ret; } return 0; } string RGWBucketSyncStatusManager::status_oid(const string& source_zone, const rgw_bucket_shard& bs) { return bucket_status_oid_prefix + "." + source_zone + ":" + bs.get_key(); } // TODO: move into rgw_data_sync_trim.cc #undef dout_prefix #define dout_prefix (*_dout << "data trim: ") namespace { /// return the marker that it's safe to trim up to const std::string& get_stable_marker(const rgw_data_sync_marker& m) { return m.state == m.FullSync ? m.next_step_marker : m.marker; } /// comparison operator for take_min_markers() bool operator<(const rgw_data_sync_marker& lhs, const rgw_data_sync_marker& rhs) { // sort by stable marker return get_stable_marker(lhs) < get_stable_marker(rhs); } /// populate the container starting with 'dest' with the minimum stable marker /// of each shard for all of the peers in [first, last) template void take_min_markers(IterIn first, IterIn last, IterOut dest) { if (first == last) { return; } // initialize markers with the first peer's auto m = dest; for (auto &shard : first->sync_markers) { *m = std::move(shard.second); ++m; } // for remaining peers, replace with smaller markers for (auto p = first + 1; p != last; ++p) { m = dest; for (auto &shard : p->sync_markers) { if (shard.second < *m) { *m = std::move(shard.second); } ++m; } } } } // anonymous namespace class DataLogTrimCR : public RGWCoroutine { RGWRados *store; RGWHTTPManager *http; const int num_shards; const std::string& zone_id; //< my zone id std::vector peer_status; //< sync status for each peer std::vector min_shard_markers; //< min marker per shard std::vector& last_trim; //< last trimmed marker per shard int ret{0}; public: DataLogTrimCR(RGWRados *store, RGWHTTPManager *http, int num_shards, std::vector& last_trim) : RGWCoroutine(store->ctx()), store(store), http(http), num_shards(num_shards), zone_id(store->get_zone().id), peer_status(store->zone_conn_map.size()), min_shard_markers(num_shards), last_trim(last_trim) {} int operate() override; }; int DataLogTrimCR::operate() { reenter(this) { ldout(cct, 10) << "fetching sync status for zone " << zone_id << dendl; set_status("fetching sync status"); yield { // query data sync status from each sync peer rgw_http_param_pair params[] = { { "type", "data" }, { "status", nullptr }, { "source-zone", zone_id.c_str() }, { nullptr, nullptr } }; auto p = peer_status.begin(); for (auto& c : store->zone_conn_map) { ldout(cct, 20) << "query sync status from " << c.first << dendl; using StatusCR = RGWReadRESTResourceCR; spawn(new StatusCR(cct, c.second, http, "/admin/log/", params, &*p), false); ++p; } } // must get a successful reply from all peers to consider trimming ret = 0; while (ret == 0 && num_spawned() > 0) { yield wait_for_child(); collect_next(&ret); } drain_all(); if (ret < 0) { ldout(cct, 4) << "failed to fetch sync status from all peers" << dendl; return set_cr_error(ret); } ldout(cct, 10) << "trimming log shards" << dendl; set_status("trimming log shards"); yield { // determine the minimum marker for each shard take_min_markers(peer_status.begin(), peer_status.end(), min_shard_markers.begin()); for (int i = 0; i < num_shards; i++) { const auto& m = min_shard_markers[i]; auto& stable = get_stable_marker(m); if (stable <= last_trim[i]) { continue; } ldout(cct, 10) << "trimming log shard " << i << " at marker=" << stable << " last_trim=" << last_trim[i] << dendl; using TrimCR = RGWSyncLogTrimCR; spawn(new TrimCR(store, store->data_log->get_oid(i), stable, &last_trim[i]), true); } } return set_cr_done(); } return 0; } class DataLogTrimPollCR : public RGWCoroutine { RGWRados *store; RGWHTTPManager *http; const int num_shards; const utime_t interval; //< polling interval const std::string lock_oid; //< use first data log shard for lock const std::string lock_cookie; std::vector last_trim; //< last trimmed marker per shard public: DataLogTrimPollCR(RGWRados *store, RGWHTTPManager *http, int num_shards, utime_t interval) : RGWCoroutine(store->ctx()), store(store), http(http), num_shards(num_shards), interval(interval), lock_oid(store->data_log->get_oid(0)), lock_cookie(RGWSimpleRadosLockCR::gen_random_cookie(cct)), last_trim(num_shards) {} int operate() override; }; int DataLogTrimPollCR::operate() { reenter(this) { for (;;) { set_status("sleeping"); wait(interval); // request a 'data_trim' lock that covers the entire wait interval to // prevent other gateways from attempting to trim for the duration set_status("acquiring trim lock"); yield call(new RGWSimpleRadosLockCR(store->get_async_rados(), store, rgw_raw_obj(store->get_zone_params().log_pool, lock_oid), "data_trim", lock_cookie, interval.sec())); if (retcode < 0) { // if the lock is already held, go back to sleep and try again later ldout(cct, 4) << "failed to lock " << lock_oid << ", trying again in " << interval.sec() << "s" << dendl; continue; } set_status("trimming"); yield call(new DataLogTrimCR(store, http, num_shards, last_trim)); // note that the lock is not released. this is intentional, as it avoids // duplicating this work in other gateways } } return 0; } RGWCoroutine* create_data_log_trim_cr(RGWRados *store, RGWHTTPManager *http, int num_shards, utime_t interval) { return new DataLogTrimPollCR(store, http, num_shards, interval); }