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https://issues.apache.org/jira/browse/UIMA-1477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jerry Cwiklik reopened UIMA-1477:
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The hang is still happening in the UIMA AS client when calling
collectionProcessComplete()
> UIMA AS client hangs while handling CPC request
> ------------------------------------------------
>
> Key: UIMA-1477
> URL: https://issues.apache.org/jira/browse/UIMA-1477
> Project: UIMA
> Issue Type: Bug
> Components: Async Scaleout
> Reporter: Jerry Cwiklik
> Assignee: Jerry Cwiklik
>
> When UIMA AS client is initialized it acquires a CPC semaphore to control
> when to send a CPC request. The semaphore is released when a number of CASes
> sent equals a number of CASes received. Only when equal the semaphore is
> released and the CPC request is allowed to be sent.
> In a case when a client is initialized but never sends any CASes this logic
> fails. The semaphore is never released causing a hang while trying to acquire
> a semaphore in collectionProcessComplete().
> Add a new test case to replicate the problem.
> Fix the code to handle sending CPC from a client that doesnt send CASes to a
> service.
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