Details
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Task
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Resolution: Fixed
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Major - P3
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4.1.4
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None
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Fully Compatible
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Sharding 2018-11-05
Description
The ReplicationStateTransitionLockGuard RAII class was introduced as a means for replication stepdown to be able to temporarily release the locks for prepared transactions so that the Global X lock can be acquired. However, closer inspection by tess.avitabile discovered race conditions, which are not trivial to fix without significant changes to the lock manager.
Instead of continuing this tight integration with the lock manager, the replication team will investigate making replication state transitions not depend on the Global X lock. As a result of this, the ReplicationStateTransitionLockGuard and its usages will no longer be necessary, so they should be reverted.
This includes the following commits:
- https://github.com/mongodb/mongo/commit/f96903979ac329a760e7b6f1bb5d8695d3daf2a7
- https://github.com/mongodb/mongo/commit/e65ff57e108ed69c46cc0b0ccbdd675663de2469
- https://github.com/mongodb/mongo/commit/9406af079a894bae80fbbec4703b04974bf84476
- https://github.com/mongodb/mongo/commit/c6d90316d6b694e12426274c713a4a078e004fc5
Attachments
Issue Links
- is depended on by
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SERVER-36913 Add functionality to LockManager to restore locks for prepared transactions during replset state transitions
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- Closed
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