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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 types used among various resharding-related IDL structs.
global:
cpp_namespace: "mongo"
imports:
- "mongo/db/keypattern.idl"
- "mongo/idl/basic_types.idl"
- "mongo/s/sharding_types.idl"
enums:
CoordinatorState:
description: "The current state of a resharding operation on the coordinator."
type: string
values:
kUnused: "unused"
kInitializing: "initializing"
kPreparingToDonate: "preparing-to-donate"
kCloning: "cloning"
kApplying: "applying"
kMirroring: "mirroring"
kCommitted: "committed"
kRenaming: "renaming"
kDone: "done"
kError: "error"
DonorState:
description: "The current state of a donor shard for a resharding operation."
type: string
values:
kUnused: "unused"
kPreparingToDonate: "preparing-to-donate"
kDonatingInitialData: "donating-initial-data"
kDonatingOplogEntries: "donating-oplog-entries"
kPreparingToMirror: "preparing-to-mirror"
kMirroring: "mirroring"
kDropping: "dropping"
kDone: "done"
kError: "error"
RecipientState:
description: "The current state of a recipient shard for a resharding operation."
type: string
values:
kUnused: "unused"
kCreatingCollection: "creating-collection"
kCloning: "cloning"
kApplying: "applying"
kSteadyState: "steady-state"
kStrictConsistency: "strict-consistency"
kRenaming: "renaming"
kDone: "done"
kError: "error"
structs:
CommonReshardingMetadata:
description: "Metadata shared across all node types for a resharding operation."
generate_comparison_operators: false
strict: true
fields:
_id:
type: uuid
description: "A unique identifier for the resharding operation."
nss:
type: namespacestring
description: "The namespace of the collection being resharded."
existingUUID:
type: uuid
description: "The UUID of the original collection being resharded."
reshardingKey:
type: KeyPattern
description: "The index specification document to use as the new shard key."
MinFetchTimestamp:
description: "Not meant to be used directly. Only use internal fields."
strict: true
fields:
minFetchTimestamp:
type: timestamp
description: "Timestamp after which a donor shard has guaranteed that oplog
entries contain recipient shard information."
optional: true
FetchTimestamp:
description: "Not meant to be used directly. Only use internal fields."
strict: true
fields:
fetchTimestamp:
type: timestamp
description: "Timestamp after which it is acceptable for recipient shards to
retrieve documents from donor shards."
optional: true
StrictConsistencyTimestamp:
description: "Not meant to be used directly. Only use internal fields."
strict: true
fields:
strictConsistencyTimestamp:
type: timestamp
description: "Timestamp after which all writes to a particular recipient shard for
the original resharding collection will be executed as distributed
transactions."
optional: true
ReshardingSourceId:
description: "Identifier for a shard involved in a particular resharding operation."
fields:
reshardingUUID:
type: uuid
description: "Identifier for a resharding operation."
shardId:
type: shard_id
description: "A shard identifier."
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