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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.
#
# This file defines the format of documents stored in config.localReshardingOperations.recipient on
# the recipient shard for a resharding operation.
global:
cpp_namespace: "mongo"
imports:
- "mongo/s/resharding/common_types.idl"
structs:
ReshardingRecipientMetrics:
description: "Contains metrics about the resharding operation on a recipient."
strict: false
fields:
operationRuntime:
type: ReshardingMetricsTimeInterval
description: >-
The time interval of the entire resharding operation on this recipient.
optional: true
documentCopy:
type: ReshardingMetricsTimeInterval
description: >-
The time interval that it takes to clone documents on this recipient.
optional: true
oplogApplication:
type: ReshardingMetricsTimeInterval
description: >-
The time interval that it takes to apply oplog entries on this recipient.
optional: true
ReshardingRecipientDocument:
description: "Represents a resharding operation on the recipient shard."
inline_chained_structs: true
chained_structs:
CommonReshardingMetadata: CommonReshardingMetadata
generate_comparison_operators: false
# Use strict:false to avoid complications around upgrade/downgrade. This isn't technically
# required for resharding because durable state from all resharding operations is cleaned up
# before the upgrade or downgrade can complete.
strict: false
fields:
cloneTimestamp:
type: timestamp
optional: true
description: "The timestamp for the snapshot read while cloning from the donors."
# We intentionally have the mutable state nested in a subobject to make it easy to
# overwrite with a single $set.
mutableState: RecipientShardContext
donorShards:
type: array<DonorShardFetchTimestamp>
description: "The list of donor shards that report to this recipient."
minimumOperationDurationMillis:
type: long
startConfigTxnCloneTime:
type: date
optional: true
metrics:
type: ReshardingRecipientMetrics
description: "Metrics related to this recipient."
optional: true
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