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Diffstat (limited to 'src/rocksdb/db/event_helpers.cc')
| -rw-r--r-- | src/rocksdb/db/event_helpers.cc | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/rocksdb/db/event_helpers.cc b/src/rocksdb/db/event_helpers.cc new file mode 100644 index 00000000..c80c5aef --- /dev/null +++ b/src/rocksdb/db/event_helpers.cc @@ -0,0 +1,195 @@ +// Copyright (c) 2011-present, Facebook, Inc. All rights reserved. +// This source code is licensed under both the GPLv2 (found in the +// COPYING file in the root directory) and Apache 2.0 License +// (found in the LICENSE.Apache file in the root directory). + +#include "db/event_helpers.h" + +namespace rocksdb { + +namespace { +template <class T> +inline T SafeDivide(T a, T b) { + return b == 0 ? 0 : a / b; +} +} // namespace + +void EventHelpers::AppendCurrentTime(JSONWriter* jwriter) { + *jwriter << "time_micros" + << std::chrono::duration_cast<std::chrono::microseconds>( + std::chrono::system_clock::now().time_since_epoch()) + .count(); +} + +#ifndef ROCKSDB_LITE +void EventHelpers::NotifyTableFileCreationStarted( + const std::vector<std::shared_ptr<EventListener>>& listeners, + const std::string& db_name, const std::string& cf_name, + const std::string& file_path, int job_id, TableFileCreationReason reason) { + TableFileCreationBriefInfo info; + info.db_name = db_name; + info.cf_name = cf_name; + info.file_path = file_path; + info.job_id = job_id; + info.reason = reason; + for (auto& listener : listeners) { + listener->OnTableFileCreationStarted(info); + } +} +#endif // !ROCKSDB_LITE + +void EventHelpers::NotifyOnBackgroundError( + const std::vector<std::shared_ptr<EventListener>>& listeners, + BackgroundErrorReason reason, Status* bg_error, InstrumentedMutex* db_mutex, + bool* auto_recovery) { +#ifndef ROCKSDB_LITE + if (listeners.size() == 0U) { + return; + } + db_mutex->AssertHeld(); + // release lock while notifying events + db_mutex->Unlock(); + for (auto& listener : listeners) { + listener->OnBackgroundError(reason, bg_error); + if (*auto_recovery) { + listener->OnErrorRecoveryBegin(reason, *bg_error, auto_recovery); + } + } + db_mutex->Lock(); +#else + (void)listeners; + (void)reason; + (void)bg_error; + (void)db_mutex; + (void)auto_recovery; +#endif // ROCKSDB_LITE +} + +void EventHelpers::LogAndNotifyTableFileCreationFinished( + EventLogger* event_logger, + const std::vector<std::shared_ptr<EventListener>>& listeners, + const std::string& db_name, const std::string& cf_name, + const std::string& file_path, int job_id, const FileDescriptor& fd, + const TableProperties& table_properties, TableFileCreationReason reason, + const Status& s) { + if (s.ok() && event_logger) { + JSONWriter jwriter; + AppendCurrentTime(&jwriter); + jwriter << "cf_name" << cf_name << "job" << job_id << "event" + << "table_file_creation" + << "file_number" << fd.GetNumber() << "file_size" + << fd.GetFileSize(); + + // table_properties + { + jwriter << "table_properties"; + jwriter.StartObject(); + + // basic properties: + jwriter << "data_size" << table_properties.data_size << "index_size" + << table_properties.index_size << "filter_size" + << table_properties.filter_size << "raw_key_size" + << table_properties.raw_key_size << "raw_average_key_size" + << SafeDivide(table_properties.raw_key_size, + table_properties.num_entries) + << "raw_value_size" << table_properties.raw_value_size + << "raw_average_value_size" + << SafeDivide(table_properties.raw_value_size, + table_properties.num_entries) + << "num_data_blocks" << table_properties.num_data_blocks + << "num_entries" << table_properties.num_entries + << "filter_policy_name" << table_properties.filter_policy_name; + + // user collected properties + for (const auto& prop : table_properties.readable_properties) { + jwriter << prop.first << prop.second; + } + jwriter.EndObject(); + } + jwriter.EndObject(); + + event_logger->Log(jwriter); + } + +#ifndef ROCKSDB_LITE + if (listeners.size() == 0) { + return; + } + TableFileCreationInfo info; + info.db_name = db_name; + info.cf_name = cf_name; + info.file_path = file_path; + info.file_size = fd.file_size; + info.job_id = job_id; + info.table_properties = table_properties; + info.reason = reason; + info.status = s; + for (auto& listener : listeners) { + listener->OnTableFileCreated(info); + } +#else + (void)listeners; + (void)db_name; + (void)cf_name; + (void)file_path; + (void)reason; +#endif // !ROCKSDB_LITE +} + +void EventHelpers::LogAndNotifyTableFileDeletion( + EventLogger* event_logger, int job_id, uint64_t file_number, + const std::string& file_path, const Status& status, + const std::string& dbname, + const std::vector<std::shared_ptr<EventListener>>& listeners) { + JSONWriter jwriter; + AppendCurrentTime(&jwriter); + + jwriter << "job" << job_id << "event" + << "table_file_deletion" + << "file_number" << file_number; + if (!status.ok()) { + jwriter << "status" << status.ToString(); + } + + jwriter.EndObject(); + + event_logger->Log(jwriter); + +#ifndef ROCKSDB_LITE + TableFileDeletionInfo info; + info.db_name = dbname; + info.job_id = job_id; + info.file_path = file_path; + info.status = status; + for (auto& listener : listeners) { + listener->OnTableFileDeleted(info); + } +#else + (void)file_path; + (void)dbname; + (void)listeners; +#endif // !ROCKSDB_LITE +} + +void EventHelpers::NotifyOnErrorRecoveryCompleted( + const std::vector<std::shared_ptr<EventListener>>& listeners, + Status old_bg_error, InstrumentedMutex* db_mutex) { +#ifndef ROCKSDB_LITE + if (listeners.size() == 0U) { + return; + } + db_mutex->AssertHeld(); + // release lock while notifying events + db_mutex->Unlock(); + for (auto& listener : listeners) { + listener->OnErrorRecoveryCompleted(old_bg_error); + } + db_mutex->Lock(); +#else + (void)listeners; + (void)old_bg_error; + (void)db_mutex; +#endif // ROCKSDB_LITE +} + +} // namespace rocksdb |