[infinispan-issues] [JBoss JIRA] (ISPN-2383) Transactions incorrectly removed by the StaleTransactionCleanupService causing inconsistencies

[Mircea Markus (JIRA)]

Mircea Markus created ISPN-2383:
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             Summary: Transactions incorrectly removed by the StaleTransactionCleanupService causing inconsistencies 
                 Key: ISPN-2383
                 URL: https://issues.jboss.org/browse/ISPN-2383
             Project: Infinispan
          Issue Type: Bug
          Components: State transfer
            Reporter: Mircea Markus
            Assignee: Mircea Markus
            Priority: Critical
             Fix For: 5.2.0.CR1


- tx runs on N1, prepare a single-key tx (k1) on N2 
- block commit execution on N2 and start N3 so that k1 node maps to N3
- the StaleTransactionCleanupService[1] removes the transaction from N2
- when commit is executed there's no tx on N2 to forward the commit to so it simply does nothing
- the TxCompletionNotification arrives on N3 and rollbacks the uncommitted data 
- data is lost!


Solution: the StaleTransactionCleanupService should not run concurrently with the NBST but only after the NBST is finished. I.e. it should no longer be an topology listener, but should be invoked explicitly during the NBST-complete RPC.  


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