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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/db/mongod_options.h"
- "mongo/db/storage/storage_options.h"
configs:
section: 'Storage options'
source: [ yaml, cli, ini ]
initializer:
register: addMongodStorageOptions
server_parameters:
recoverToOplogTimestamp:
description: >-
When --queryableBackupMode is supplied on startup along with this server parameter, the
server will perform replication recovery up to and including the provided timestamp. The
parameter should be passed in as a JSON string with the following format:
{timestamp: Timestamp(123, 456)}.
set_at: [ startup ]
cpp_vartype: std::string
cpp_varname: recoverToOplogTimestamp
configs:
'storage.engine':
description: 'What storage engine to use - defaults to wiredTiger if no data files present'
short_name: storageEngine
arg_vartype: String
'storage.dbPath':
description:
expr: 'storageDBPathDescription()'
is_constexpr: false
short_name: dbpath
arg_vartype: String
'storage.directoryPerDB':
description: 'Each database will be stored in a separate directory'
short_name: directoryperdb
arg_vartype: Switch
'storage.queryableBackupMode':
description: >-
Enables queryable backup mode which starts the storage engine in read/write mode to
allow for replication recovery. After replication recovery the server above the
storage engine layer will be in read-only mode.
short_name: queryableBackupMode
arg_vartype: Switch
hidden: true
'storage.groupCollections':
description: >-
Group collections - if true the storage engine may group
collections within a database into a shared record store
short_name: groupCollections
arg_vartype: Switch
hidden: true
# This config has a setParameter alias in storage_paramaters.idl. To resolve the conflict, the
# default is encoded the StorageGlobalParams.
'storage.syncPeriodSecs':
description: 'Seconds between disk syncs'
short_name: syncdelay
arg_vartype: Double
validator:
gte: 0.0
lte: { expr: 'StorageGlobalParams::kMaxSyncdelaySecs' }
# This config has a setParameter alias in storage_paramaters.idl. To resolve the conflict, the
# default is encoded the StorageGlobalParams.
'storage.journal.commitIntervalMs':
description: 'how often to group/batch commit (ms)'
short_name: 'journalCommitInterval'
arg_vartype: Int
validator:
gte: 1
lte: { expr: 'StorageGlobalParams::kMaxJournalCommitIntervalMs' }
upgrade:
description: 'Upgrade db if needed'
arg_vartype: Switch
source: [ cli, ini ]
repair:
description: 'Run repair on all dbs'
arg_vartype: Switch
source: [ cli, ini ]
restore:
description: >-
This should only be used when restoring from a backup. Mongod will behave differently by
handling collections with missing data files, allowing database renames, skipping oplog
entries for collections not restored and more.
arg_vartype: Switch
source: [ cli, ini ]
'storage.oplogMinRetentionHours':
description: 'Minimum number of hours to preserve in the oplog. Default is 0 (turned off). Fractions are allowed (e.g. 1.5 hours)'
short_name: oplogMinRetentionHours
arg_vartype: Double
default: 0.0
validator:
gte: 0.0
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