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# 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/bson/bson_depth.h"
server_parameters:
notablescan:
# NOT recommended for production use.
description: >-
Whether all queries must use indexes.
If true, MongoDB will not execute queries that require a table scan and will return an error.
set_at: [ startup, runtime ]
cpp_varname: 'storageGlobalParams.noTableScan'
syncdelay:
# In almost every situation you should not set this value and use the default setting.
description: >-
Interval in seconds between fsync operations where mongod flushes its
working memory to disk. By default, mongod flushes memory to disk every 60 seconds.
set_at: [ startup, runtime ]
cpp_varname: 'storageGlobalParams.syncdelay'
validator:
gte: 0.0
lte: { expr: 'StorageGlobalParams::kMaxSyncdelaySecs' }
journalCommitInterval:
description: 'Number of milliseconds between journal commits'
set_at: [ startup, runtime ]
cpp_varname: 'storageGlobalParams.journalCommitIntervalMs'
validator:
gte: 1
lte: { expr: 'StorageGlobalParams::kMaxJournalCommitIntervalMs' }
takeUnstableCheckpointOnShutdown:
description: 'Take unstable checkpoint on shutdown'
cpp_vartype: bool
cpp_varname: gTakeUnstableCheckpointOnShutdown
set_at: startup
default: false
operationMemoryPoolBlockInitialSizeKB:
description: 'Initial block size in KB for the per operation temporary object memory pool'
set_at: [ startup, runtime ]
cpp_vartype: AtomicWord<int32_t>
cpp_varname: gOperationMemoryPoolBlockInitialSizeKB
default: 1
validator:
gte: 1
operationMemoryPoolBlockMaxSizeKB:
description: 'Maximum block size in KB for the per operation temporary object memory pool'
set_at: [ startup, runtime ]
cpp_vartype: AtomicWord<int32_t>
cpp_varname: gOperationMemoryPoolBlockMaxSizeKB
default: 2048
validator:
gte: 1
storageGlobalParams.directoryperdb:
description: 'Read-only view of directory per db config parameter'
# Actually, never. TODO(SERVER-59813): Use correct IDL for this once support is added.
set_at: startup
cpp_class:
name: StorageDirectoryPerDbParameter
override_ctor: true
timeseriesValidateCompressedBuckets:
description: 'Validate that there is no data loss before committing compressed timeseries buckets'
set_at: [ startup, runtime ]
cpp_vartype: AtomicWord<bool>
cpp_varname: gValidateTimeseriesCompression
default: true
roundtripBsonColumnOnValidate:
description: 'Roundtrips collections content to BSONColumn to verify that we can compress/decompress without data loss.'
set_at: startup
cpp_vartype: bool
cpp_varname: gRoundtripBsonColumnOnValidate
default: false
feature_flags:
featureFlagClusteredIndexes:
description: "When enabled, support non time-series collections with clustered indexes"
cpp_varname: feature_flags::gClusteredIndexes
default: false
featureFlagTimeseriesUpdatesAndDeletes:
description: "When enabled, support for updates and deletes on time-series collections"
cpp_varname: feature_flags::gTimeseriesUpdatesAndDeletes
default: true
version: 5.0
featureFlagTimeseriesMetricIndexes:
description: "When enabled, support secondary indexes on time-series measurements"
cpp_varname: feature_flags::gTimeseriesMetricIndexes
default: false
featureFlagTimeseriesBucketCompression:
description: "Enable bucket compression on time-series collections"
cpp_varname: feature_flags::gTimeseriesBucketCompression
default: true
version: 5.2
featureFlagYieldingSupportForSBE:
description: "Enable retaining valid cursor across query yield"
cpp_varname: feature_flags::gYieldingSupportForSBE
default: false
featureFlagCollModIndexUnique:
description: "When enabled, collMod supports making an index unique"
cpp_varname: feature_flags::gCollModIndexUnique
default: false
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