[infinispan-issues] [JBoss JIRA] (ISPN-6949) TxInterceptor.verifyRemoteTransaction does not work on 1PC

[Radim Vansa (JIRA)]

Radim Vansa created ISPN-6949:
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             Summary: TxInterceptor.verifyRemoteTransaction does not work on 1PC
                 Key: ISPN-6949
                 URL: https://issues.jboss.org/browse/ISPN-6949
             Project: Infinispan
          Issue Type: Bug
          Components: Core, Transactions
    Affects Versions: 9.0.0.Alpha4
            Reporter: Radim Vansa


{{TxInterceptor.verifyRemoteTransaction}} which includes check if the transaction is already completed is called in PrepareCommand processing *after* the command executed. With 1PC txs (as in pessimistic mode) this is already after the entries are committed into DC, so the rollback can't do much.

Actually I have encountered this in FlagsReplicationTest because LockControlCommand does not honor the (non-replicated) FAIL_SILENTLY flag - such command should ignore remote exceptions but when the exception hits PessimisticLockingInterceptor, this emits TxCompletionNotificationCommand which marks the transaction as completed (and therefore the following PrepareCommand tries to execute the rollback). The FAIL_SILENTLY flag prevents the command to throw exception out of the interceptor stack, but it should probably discard the exception right after RPC (or replicate the flag remotely).



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