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https://issues.apache.org/jira/browse/UIMA-1355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jerry Cwiklik closed UIMA-1355.
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Resolution: Fixed
Modified to prevent double increment of the count that keeps track of how many
delegates responded in a parallel step.
> When one delagate in a parallel step fails, the flow continues without
> waiting for the last reply
> -------------------------------------------------------------------------------------------------
>
> Key: UIMA-1355
> URL: https://issues.apache.org/jira/browse/UIMA-1355
> Project: UIMA
> Issue Type: Bug
> Components: Async Scaleout
> Reporter: Burn Lewis
> Fix For: 2.3S
>
> Attachments: UIMA-1355_test_uimaj-as-activemq.patch
>
>
> When a delegate in a parallel step fails the number of replies received is
> incremented twice, so the reply from the last delegate is not merged into the
> CAS. When it is received it will reenter the flow if the CAS is still
> active, causing even more trouble.
> I have a test case that demonstrates the problem.
> Also we should make the check for all-replies-received atomic so that only
> one reply- or error-processing thread will send the CAS on to the next step,
> or, depending on the error-handling, discard the CAS or terminate the service.
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