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Diffstat (limited to 'src/mongo/db/transaction/transaction_participant.idl')
| -rw-r--r-- | src/mongo/db/transaction/transaction_participant.idl | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/mongo/db/transaction/transaction_participant.idl b/src/mongo/db/transaction/transaction_participant.idl new file mode 100644 index 00000000000..79f54605312 --- /dev/null +++ b/src/mongo/db/transaction/transaction_participant.idl @@ -0,0 +1,77 @@ +# Copyright (C) 2019-present MongoDB, Inc. +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the Server Side Public License, version 1, +# as published by MongoDB, Inc. +# +# 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 +# Server Side Public License for more details. +# +# You should have received a copy of the Server Side Public License +# along with this program. If not, see +# <http://www.mongodb.com/licensing/server-side-public-license>. +# +# 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 Server Side 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. +# + +global: + cpp_namespace: "mongo" + cpp_includes: + - "mongo/db/transaction/transaction_participant.h" + +server_parameters: + maxTransactionLockRequestTimeoutMillis: + description: >- + Max number of milliseconds that any transaction lock request + will wait for lock acquisition. If an operation provides a greater timeout in a lock request, + maxTransactionLockRequestTimeoutMillis will override it. If this is set to a negative value, it + is inactive and nothing will be overridden. + set_at: [ startup, runtime ] + cpp_vartype: AtomicWord<int> + cpp_varname: gMaxTransactionLockRequestTimeoutMillis + # 5 milliseconds will help avoid deadlocks, but will still allow fast-running metadata operations + # to run without aborting transactions. + default: 5 + + transactionLifetimeLimitSeconds: + description: >- + Lifetime given to each transaction. + Transactions must eventually expire to preempt storage cache pressure immobilizing the system. + set_at: [ startup, runtime ] + cpp_vartype: AtomicWord<decltype(TransactionParticipant::observeTransactionLifetimeLimitSeconds)::Argument> + cpp_varname: gTransactionLifetimeLimitSeconds + validator: + gte: 1 + on_update: std::ref(TransactionParticipant::observeTransactionLifetimeLimitSeconds) + default: 60 + + maxNumberOfTransactionOperationsInSingleOplogEntry: + description: >- + Maximum number of operations to pack into a single oplog entry, when multi-oplog + format for transactions is in use. + set_at: startup + cpp_vartype: int + cpp_varname: gMaxNumberOfTransactionOperationsInSingleOplogEntry + default: 2147483647 # INT_MAX + validator: { gte: 1 } + + transactionSizeLimitBytes: + description: >- + Maximum total size of operations in a multi-document transaction. + set_at: [ startup, runtime ] + cpp_vartype: AtomicWord<long long> + cpp_varname: gTransactionSizeLimitBytes + default: + expr: std::numeric_limits<long long>::max() |