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Backwards Compatibility:
Fully Compatible
Sprint:
Sharding EMEA 2021-08-09, Sharding EMEA 2021-08-23, Sharding EMEA 2021-09-06, Sharding EMEA 2021-09-20, Sharding EMEA 2021-10-04, Sharding EMEA 2021-10-18

The acquisition of the critical section should happen once the recipient has the up to date version of the documents of the chunk being migrated.

We should block write operations on the recipient shard.

This ticket only deals with the happy-path (i.e. non failover). The failover recovery will be addressed in a follow-up ticket (~~SERVER-60645~~).

depends on

SERVER-59965 Distributed deadlock between renameCollection and multi-shard transaction

is depended on by

SERVER-58992 Force a refresh of the filtering metadata on the recipient shard during the commit phase of a moveChunk

is related to

SERVER-60415 No longer accept FailPointSetFailed errors on jstests that use migrationRecipientFailPostCommitRefresh failpoint

SERVER-60982 Evaluate the performance of the new migration protocol

related to

SERVER-60645 Recoverability of recipient shard critical section of a moveChunk operation

SERVER-60984 Report time in recipient critical section on serverStatus' shardingStatistics

(1 related to)