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From "Jerry Cwiklik (JIRA)" <uima-...@incubator.apache.org>
Subject [jira] Closed: (UIMA-1439) Fix interemittent hangs in UIMA AS when stopping the JMS listener
Date Thu, 20 Aug 2009 15:36:16 GMT

     [ https://issues.apache.org/jira/browse/UIMA-1439?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jerry Cwiklik closed UIMA-1439.
-------------------------------

    Resolution: Fixed

Fixed under JIRA UIMA-1433. Bug in caching JMS connections prevented cleanup code from stopping
AMQ threads.

> Fix interemittent hangs in UIMA AS when stopping the JMS listener
> -----------------------------------------------------------------
>
>                 Key: UIMA-1439
>                 URL: https://issues.apache.org/jira/browse/UIMA-1439
>             Project: UIMA
>          Issue Type: Bug
>          Components: Async Scaleout
>            Reporter: Jerry Cwiklik
>            Assignee: Jerry Cwiklik
>
> When stopping UIMA AS listener, the ThreadPoolTaskExecutor shutdown method is called
and the code than waits for all threads managed by the executor to stop. The problem is that
listener's stop method may be called from one of the threads that are being managed by the
executor. The executor tries to stop the thread and the thread tries to stop the executor.
This leads to a hang. 

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