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From "Nikolay Martynov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-5109) "Soft deadlock" in TransportConnection causes degraded performance in certain situations
Date Wed, 19 Mar 2014 11:27:42 GMT
Nikolay Martynov created AMQ-5109:
-------------------------------------

             Summary: "Soft deadlock" in TransportConnection causes degraded performance in
certain situations
                 Key: AMQ-5109
                 URL: https://issues.apache.org/jira/browse/AMQ-5109
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.9.0
         Environment: HP-UX 11.31, RHEL 5/6. HP JDK 6/7, Oracle JDK 6/7
            Reporter: Nikolay Martynov
            Priority: Minor


"Soft" deadlock occurres due to async stopping in case of starting/stopping lots of client
connections (using jms template with standard connection factory, for example). ActiveMQ BrokerService
gets frozen for 1 second trying to acquire the lock. As a result, already poor performance
in case of unpooled connection factory further degrades by around 50%.



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