[jira] [Created] (UIMA-4156) uima-as running a pear scaled out fails with strange error messages

["Marshall Schor (JIRA)" <de...@uima.apache.org>]

Marshall Schor created UIMA-4156:
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             Summary: uima-as running a pear scaled out fails with strange error messages
                 Key: UIMA-4156
                 URL: https://issues.apache.org/jira/browse/UIMA-4156
             Project: UIMA
          Issue Type: Bug
          Components: Async Scaleout
    Affects Versions: 2.6.0AS
            Reporter: Marshall Schor
            Assignee: Jerry Cwiklik


Deploying a Pear as a service, and scaling it out, causes a not-assignable kind of error between a class and an interface, when attempting to initialize the pear for the 2nd scaled-out-instance.  Traced this to a conceptual bug: UIMA-AS was passing the same == UimaContext object to the produceAnalysisEngine (in the additionalParams).  This object is updated and must be unique per component per scaled-out-instance.  Other things in the UimaContext (such as the CAS pool) are needed to be on a per scaled-out-instance, as well.  This same issue in the core MultiprocessingAnalysisEngine impl was addressed in UIMA-2078 (see comments)



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