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# Copyright (C) 2021-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.
#
# Pre-image IDL file.
global:
cpp_namespace: "mongo"
imports:
- "mongo/db/basic_types.idl"
server_parameters:
expiredChangeStreamPreImageRemovalJobSleepSecs:
description: >-
Specifies the period within which expired pre-image removal job is running.
set_at: [ startup ]
cpp_vartype: AtomicWord<int>
cpp_varname: gExpiredChangeStreamPreImageRemovalJobSleepSecs
validator:
gte: 1
default: 10
preImagesCollectionTruncateMarkersMinBytes:
description: >-
Server parameter that specifies the minimum number of bytes contained in each
truncate marker. This is only of use if featureFlagUseUnreplicatedTruncatesForDeletions is
enabled
set_at: startup
cpp_varname: gPreImagesCollectionTruncateMarkersMinBytes
cpp_vartype: int32_t
default: 33_554_432 # 32 MiB
validator:
gt: 0
structs:
ChangeStreamPreImageId:
description: Uniquely identifies a pre-image for a given node or replica set.
fields:
nsUUID:
description: UUID of the collection the pre-image of a document is from.
type: uuid
ts:
description: Timestamp of an oplog entry associated with this document.
type: timestamp
applyOpsIndex:
description: Index of an operation in an applyOps entry of a transaction.
0 if the operation is not in a transaction or is the first operation in a transaction.
type: safeInt64
validator: { gte: 0 }
ChangeStreamPreImage:
description: A version of a document just before replace, update, or delete operation.
fields:
_id:
cpp_name: id
type: ChangeStreamPreImageId
operationTime:
description: Operation execution wall clock time. Used to determine if the
pre-image expired.
type: date
preImage:
description: Pre-image of a document for an operation recorded to an oplog entry.
type: object
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