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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-2307) Synchronization issue with AMQTransacitonStore - can leave duplicate transaction hanging about that can hold up journal cleanup
Date Fri, 26 Jun 2009 12:18:39 GMT
Synchronization issue with AMQTransacitonStore - can leave duplicate transaction hanging about
that can hold up journal cleanup
-------------------------------------------------------------------------------------------------------------------------------

                 Key: AMQ-2307
                 URL: https://issues.apache.org/activemq/browse/AMQ-2307
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.2.0
         Environment: high load, many concurrent producers and consumers using transactions
and AMQ store - multi core unix box.
            Reporter: Gary Tully
            Assignee: Gary Tully
             Fix For: 5.3.0


There is a small synchronization window in AMQTransacitonStore where transactions are created
that can lead to duplicate transactions hanging about in the inflight list. This dangling
transaction will hold up journal disk cleanup as the file referenced by the transaction will
not be released till the broker is restarted. If this happens a bunch of times then the journal
can run out of disk space.

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