71f5bcb730
Summary: Some users want to prevent rocksdb from entering read-only mode in certain error cases. This diff gives them a callback, `OnBackgroundError`, that they can use to achieve it. - call `OnBackgroundError` every time we consider setting `bg_error_`. Use its result to assign `bg_error_` but not to change the function's return status. - classified calls using `BackgroundErrorReason` to give the callback some info about where the error happened - renamed `ParanoidCheck` to something more specific so we can provide a clear `BackgroundErrorReason` - unit tests for the most common cases: flush or compaction errors Closes https://github.com/facebook/rocksdb/pull/2477 Differential Revision: D5300190 Pulled By: ajkr fbshipit-source-id: a0ea4564249719b83428e3f4c6ca2c49e366e9b3
55 lines
2.1 KiB
C++
55 lines
2.1 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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// This source code is also licensed under the GPLv2 license found in the
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// COPYING file in the root directory of this source tree.
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#pragma once
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#include <memory>
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#include <string>
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#include <vector>
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#include "db/column_family.h"
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#include "db/version_edit.h"
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#include "rocksdb/listener.h"
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#include "rocksdb/table_properties.h"
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#include "util/event_logger.h"
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namespace rocksdb {
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class EventHelpers {
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public:
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static void AppendCurrentTime(JSONWriter* json_writer);
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#ifndef ROCKSDB_LITE
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static void NotifyTableFileCreationStarted(
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const std::vector<std::shared_ptr<EventListener>>& listeners,
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const std::string& db_name, const std::string& cf_name,
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const std::string& file_path, int job_id, TableFileCreationReason reason);
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#endif // !ROCKSDB_LITE
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static void NotifyOnBackgroundError(
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const std::vector<std::shared_ptr<EventListener>>& listeners,
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BackgroundErrorReason reason, Status* bg_error,
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InstrumentedMutex* db_mutex);
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static void LogAndNotifyTableFileCreationFinished(
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EventLogger* event_logger,
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const std::vector<std::shared_ptr<EventListener>>& listeners,
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const std::string& db_name, const std::string& cf_name,
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const std::string& file_path, int job_id, const FileDescriptor& fd,
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const TableProperties& table_properties, TableFileCreationReason reason,
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const Status& s);
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static void LogAndNotifyTableFileDeletion(
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EventLogger* event_logger, int job_id,
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uint64_t file_number, const std::string& file_path,
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const Status& status, const std::string& db_name,
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const std::vector<std::shared_ptr<EventListener>>& listeners);
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private:
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static void LogAndNotifyTableFileCreation(
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EventLogger* event_logger,
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const std::vector<std::shared_ptr<EventListener>>& listeners,
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const FileDescriptor& fd, const TableFileCreationInfo& info);
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};
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} // namespace rocksdb
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