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From "Jerry Cwiklik (JIRA)" <uima-...@incubator.apache.org>
Subject [jira] Created: (UIMA-1375) Fix a race condition while handling CASes generated by a Cas Multiplier
Date Mon, 08 Jun 2009 13:40:07 GMT
Fix a race condition while handling CASes generated by a Cas Multiplier
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                 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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