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author | Jack Mulrow <jack.mulrow@mongodb.com> | 2017-12-15 15:51:40 -0500 |
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committer | Jack Mulrow <jack.mulrow@mongodb.com> | 2018-01-18 18:43:23 -0500 |
commit | 9b6f404d30b944def9bcc77ebc8277fb97471080 (patch) | |
tree | f711e258fad89b72526e1a493ce22c68341b27fb /src/mongo/db/retryable_writes_stats.h | |
parent | e0febf2c258d77a179bdcf12ef8318ea92d12ee0 (diff) | |
download | mongo-9b6f404d30b944def9bcc77ebc8277fb97471080.tar.gz |
SERVER-28923 Add stats for retryable writes
Diffstat (limited to 'src/mongo/db/retryable_writes_stats.h')
-rw-r--r-- | src/mongo/db/retryable_writes_stats.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/mongo/db/retryable_writes_stats.h b/src/mongo/db/retryable_writes_stats.h new file mode 100644 index 00000000000..0a0fad84b71 --- /dev/null +++ b/src/mongo/db/retryable_writes_stats.h @@ -0,0 +1,74 @@ +/** + * Copyright (C) 2018 MongoDB, Inc. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License, version 3, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * As a special exception, the copyright holders give permission to link the + * code of portions of this program with the OpenSSL library under certain + * conditions as described in each individual source file and distribute + * linked combinations including the program with the OpenSSL library. You + * must comply with the GNU Affero General Public License in all respects for + * all of the code used other than as permitted herein. If you modify file(s) + * with this exception, you may extend this exception to your version of the + * file(s), but you are not obligated to do so. If you do not wish to do so, + * delete this exception statement from your version. If you delete this + * exception statement from all source files in the program, then also delete + * it in the license file. + */ + +#pragma once + +#include "mongo/db/operation_context.h" +#include "mongo/db/service_context.h" +#include "mongo/db/transactions_stats_gen.h" +#include "mongo/platform/atomic_word.h" + +namespace mongo { + +/** + * Container for retryable writes statistics. + */ +class RetryableWritesStats { + MONGO_DISALLOW_COPYING(RetryableWritesStats); + +public: + RetryableWritesStats() = default; + + static RetryableWritesStats* get(ServiceContext* service); + static RetryableWritesStats* get(OperationContext* opCtx); + + void incrementRetriedCommandsCount(); + + void incrementRetriedStatementsCount(); + + void incrementTransactionsCollectionWriteCount(); + + /** + * Appends the accumulated stats to a transactions stats object to be returned through + * serverStatus. + */ + void updateStats(TransactionsStats* stats); + +private: + // The number of received commands that contained a statement that had already been executed. + AtomicUInt64 _retriedCommandsCount{0}; + + // The number of received statements found to have been previously executed. + AtomicUInt64 _retriedStatementsCount{0}; + + // The number of writes to the config.transactions collection. Includes writes initiated by a + // migration. + AtomicUInt64 _transactionsCollectionWriteCount{0}; +}; + +} // namespace mongo |