[jira] Closed: (UIMA-1375) Fix a race condition while handling CASes generated by a Cas Multiplier

["Jerry Cwiklik (JIRA)" <ui...@incubator.apache.org>]

     [ https://issues.apache.org/jira/browse/UIMA-1375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jerry Cwiklik closed UIMA-1375.
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    Resolution: Fixed

> Fix a race condition while handling CASes generated by a Cas Multiplier
> -----------------------------------------------------------------------
>
>                 Key: UIMA-1375
>                 URL: https://issues.apache.org/jira/browse/UIMA-1375
>             Project: UIMA
>          Issue Type: Bug
>          Components: Async Scaleout
>            Reporter: Jerry Cwiklik
>
> The Uima AS aggregate sometimes tries to use a wrong CAS pool when deserializing CASes received from a remote CM. The aggregate stores a key of the delegate CM in a cache before sending a CAS to the delegate. When the Aggregate receives a child CAS, it looks up the cache with parent CAS id and retrieves the CM delegate key. Sometimes, when the aggregate looks up the CM delegate key it receives a key of the next CM suggesting that the state of cache entry changes unexpectedly. 

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