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Posted to dev@uima.apache.org by "Jerry Cwiklik (JIRA)" <de...@uima.apache.org> on 2010/12/27 19:28:47 UTC

[jira] Created: (UIMA-1981) UIMA AS releases parent CAS prematurely

UIMA AS releases parent CAS prematurely
---------------------------------------

                 Key: UIMA-1981
                 URL: https://issues.apache.org/jira/browse/UIMA-1981
             Project: UIMA
          Issue Type: Bug
          Components: Async Scaleout
            Reporter: Jerry Cwiklik
            Assignee: Jerry Cwiklik
             Fix For: 2.3.1AS


UIMA AS aggregate uses a child counter along with a few booleans kept in a cache to determine when to put parent CAS in play. If there are no more child CASes in play and the parent CAS has returned from a CM, the CAS may proceed into a finalStep() or into process() if parentProcessLast=true. Upon return from a CM, the state of the CAS is marked as returned from CM. Problem is it remains set to as returned even though it may be subsequently sent to another delegate CM. When the last child CAS is processed, the parent CAS is released even though it may still be in a CM delegate. The fix for this is to reset "return from delegate" flag to false before dispatching a CAS to the next delegate in a flow. 

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[jira] Closed: (UIMA-1981) UIMA AS releases parent CAS prematurely

Posted by "Jerry Cwiklik (JIRA)" <de...@uima.apache.org>.

     [ https://issues.apache.org/jira/browse/UIMA-1981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jerry Cwiklik closed UIMA-1981.
-------------------------------

    Resolution: Fixed

Modified simpleStep() in UIMA AS aggregate to set replyReceived flag to false before dispatching CAS to a delegate

> UIMA AS releases parent CAS prematurely
> ---------------------------------------
>
>                 Key: UIMA-1981
>                 URL: https://issues.apache.org/jira/browse/UIMA-1981
>             Project: UIMA
>          Issue Type: Bug
>          Components: Async Scaleout
>            Reporter: Jerry Cwiklik
>            Assignee: Jerry Cwiklik
>             Fix For: 2.3.1AS
>
>
> UIMA AS aggregate uses a child counter along with a few booleans kept in a cache to determine when to put parent CAS in play. If there are no more child CASes in play and the parent CAS has returned from a CM, the CAS may proceed into a finalStep() or into process() if parentProcessLast=true. Upon return from a CM, the state of the CAS is marked as returned from CM. Problem is it remains set to as returned even though it may be subsequently sent to another delegate CM. When the last child CAS is processed, the parent CAS is released even though it may still be in a CM delegate. The fix for this is to reset "return from delegate" flag to false before dispatching a CAS to the next delegate in a flow. 

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