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From "Olivier Terrier (JIRA)" <uima-...@incubator.apache.org>
Subject [jira] Created: (UIMA-1105) CPE is sutck trying to retrieve a free CAS from the pool
Date Tue, 08 Jul 2008 09:37:34 GMT
CPE is sutck trying to retrieve a free CAS from the pool

                 Key: UIMA-1105
                 URL: https://issues.apache.org/jira/browse/UIMA-1105
             Project: UIMA
          Issue Type: Bug
          Components: Collection Processing
    Affects Versions: 2.2.1
         Environment: Windows XP 32 bits
            Reporter: Olivier Terrier

Buggy scenario is a CPE with a first remote processor deployed as a Vinci service and an integrated
CAS consumer that throws a ResourceProcessException in its process method.

It is quite easy to reproduce with a dummy consumer with this implementation
public void processCas(CAS aCAS) throws ResourceProcessException {
	throw new ResourceProcessException(new FileNotFoundException("file not found"));

It looks like the CPE is stuck trying to retrieve a CAS from the CAS pool that is apparently
empty at some point.
My feeling is that when you have an ResourceProcessException thrown in the last component
of the CPE, the code that is supposed to release the CAS from the CAS pool is not properly

If I suspend the process in Eclipse I can see that the CasConsumer and the Collection Reader
pipelines Threads are waiting on the
 CPECasPool.getCas(long) method

I attach the uima.log set to the FINEST level

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