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Posted to issues@activemq.apache.org by "Gary Tully (JIRA)" <ji...@apache.org> on 2015/09/03 17:14:45 UTC

[jira] [Created] (AMQ-5953) XA Transaction 'XID:[...]' has not been started. xaErrorCode:-4 on MessageAck

Gary Tully created AMQ-5953:
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             Summary: XA Transaction 'XID:[...]' has not been started. xaErrorCode:-4 on MessageAck
                 Key: AMQ-5953
                 URL: https://issues.apache.org/jira/browse/AMQ-5953
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.12.0
            Reporter: Gary Tully
            Assignee: Gary Tully
             Fix For: 5.13.0


There is a sync issue in TransactionBroker, that can result in contention on the xatransaction map.
The result is a get returning null for something present. So an Ack cannot resolve the corresponding transaction. 
The error - transaction not started - xaErrorCode:-4

Either a resize or unrelated remove op could cause inconsistency and presumably allow a transient null.
Trying to reproduce reliably in a test case is elusive. 



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