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https://issues.apache.org/jira/browse/UIMA-1867?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jerry Cwiklik closed UIMA-1867.
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Resolution: Fixed
Modified sendReplyToRemoteClient() to release a CAS on send failure to a
client.
> UIMA AS Cas Multiplier Not Releasing CASes On Send Failures
> -----------------------------------------------------------
>
> Key: UIMA-1867
> URL: https://issues.apache.org/jira/browse/UIMA-1867
> Project: UIMA
> Issue Type: Bug
> Components: Async Scaleout
> Affects Versions: 2.3AS
> Reporter: Jerry Cwiklik
> Assignee: Jerry Cwiklik
>
> UIMA AS Cas Multiplier does not release a CAS on send failures to a client.
> The client may have previously terminated while its input CAS was being
> processed. When the client dies, its temp reply queue is deleted and the Cas
> Multiplier is unable to deliver CASes. In such case, the Cas Multiplier
> detects send failure but it does not release a CAS causing eventual hang. The
> hang may be due to exhausted CAS pool or due to a non-empty cache while
> processing subsequent CPC request. The CPC is only allowed to be processed if
> ALL previously sent CASes are processed and the cache becomes empty.
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