Erik Salter created ISPN-3389:
Summary: Forwarded transactions can remain stale after state transfer
Issue Type: Bug
Components: State transfer
Affects Versions: 5.2.7.Final
Reporter: Erik Salter
Assignee: Mircea Markus
There is a scenario where a tx started on one node, moved during state transfer, and
committed on the originating node won't be removed from the new owner's tx table.
The chain of events is as follows:
1. New topology comes in as part of a view change.
2. Local transaction started with the new topology ID. This transaction was started due
to a LockControlCommand and has no modifications. Also important, it only has local
3. Tx forwarded to new owner.
4. Since the tx has only local locks and no modifications, it is only removed locally. No
TxCompletion or Rollback are broadcast to the new owners.
This key becomes unusable not due to stale locks, but because the waitForTransaction()
code will see that the old tx can "potentially" lock the key.
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