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# Copyright (C) 2020-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"
imports:
- "mongo/idl/basic_types.idl"
server_parameters:
loadRoutingTableOnStartup:
description: >-
Enables precaching of the mongos routing table on startup.
set_at: [ startup ]
cpp_vartype: bool
cpp_varname: "gLoadRoutingTableOnStartup"
default: true
warmMinConnectionsInShardingTaskExecutorPoolOnStartup:
description: >-
Enables prewarming of the connection pool.
set_at: [ startup ]
cpp_vartype: bool
cpp_varname: "gWarmMinConnectionsInShardingTaskExecutorPoolOnStartup"
default: true
warmMinConnectionsInShardingTaskExecutorPoolOnStartupWaitMS:
description: >-
How long to wait for all hosts to have at least one connection.
set_at: [ startup ]
cpp_vartype: int
cpp_varname: "gWarmMinConnectionsInShardingTaskExecutorPoolOnStartupWaitMS"
default: 2000 # 2secs
maxTimeMSThresholdForHedging:
description: >-
The upper threshold for the expected running time of an operation (maxTimeMS)
for it to be worth hedging.
set_at: [ startup ]
cpp_vartype: int
cpp_varname: "gMaxTimeMSThresholdForHedging"
default: 5000
hedgingDelayPercentage:
description: >-
The percentage of maxTimeMS to wait for before dispatching subsequent reads.
set_at: [ startup ]
cpp_vartype: int
cpp_varname: "gHedgingDelayPercentage"
default: 25
defaultHedgingDelayMS:
description: >-
The default wait time in milliseconds before dispatching subsequent reads if
maxTimeMS is not given.
set_at: [ startup ]
cpp_vartype: int
cpp_varname: "gDefaultHedgingDelayMS"
default: 1250
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