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https://issues.apache.org/jira/browse/UIMA-1255?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jerry Cwiklik updated UIMA-1255:
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Attachment: uimaj-as-core-UIMA-1255-patch.txt
> Modify UIMA-AS Aggregate to Handle Cas Not Found Error
> ------------------------------------------------------
>
> Key: UIMA-1255
> URL: https://issues.apache.org/jira/browse/UIMA-1255
> Project: UIMA
> Issue Type: Bug
> Components: Async Scaleout
> Reporter: Jerry Cwiklik
> Attachments: uimaj-as-activemq-UIMA-1255-patch.txt,
> uimaj-as-core-UIMA-1255-patch.txt
>
>
> Catch Cas Not Found exception in the finalStep(), log it and return. This
> exception can occur when one thread is processing a child of an input CAS in
> parallel with another thread processing a second child of the same CAS. The
> first thread may remove the input CAS before the second thread completes.
> When this happens, the second thread eventually will try to fetch the input
> CAS but by that time the CAS no longer exists. An exception is thrown and
> send through the error handler which reports it to a client. This exception
> should be handled by the aggregate and not sent to the client.
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