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From "Jerry Cwiklik (JIRA)" <uima-...@incubator.apache.org>
Subject [jira] Created: (UIMA-1165) Fix a race condition in the UIMA-AS aggregate that results in a hang
Date Thu, 04 Sep 2008 15:17:57 GMT
Fix a race condition in the UIMA-AS aggregate that results in a hang
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                 Key: UIMA-1165
                 URL: https://issues.apache.org/jira/browse/UIMA-1165
             Project: UIMA
          Issue Type: Bug
          Components: Async Scaleout
            Reporter: Jerry Cwiklik


When running a complex Cas Multiplier Aggregate AS service with a scaled out listener threads,
a race condition occurs that leads to a hang. Specifically, one thread obtains a number of
child CASes produced from an input CAS, than this thread is preempted and another thread releases
one of the child CASes. The parent CAS may not be released from the InProcessCache leading
to CAS pool exhaustion since many CASes are stuck in the InProcessCache waiting to be released.

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