This task is to make the migration source and destination managers owned by the collection and protected by collection lock.
- depends on
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SERVER-22972 Some usages of OldClientContext reference database instead of collection
- Closed
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SERVER-23015 Do not do shard version checking on the slaves in master/slave replication
- Closed
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SERVER-22997 Unify checking for stale sharding version and waiting for migration critical section
- Closed
- is duplicated by
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SERVER-19662 Assert that mongod never refreshes the sharding metadata under a lock
- Closed