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From "Jerry Cwiklik (JIRA)" <...@uima.apache.org>
Subject [jira] [Closed] (UIMA-3572) Fix UIMA-AS race condition
Date Thu, 06 Mar 2014 15:24:43 GMT

     [ https://issues.apache.org/jira/browse/UIMA-3572?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jerry Cwiklik closed UIMA-3572.
-------------------------------

    Resolution: Fixed

> Fix UIMA-AS race condition 
> ---------------------------
>
>                 Key: UIMA-3572
>                 URL: https://issues.apache.org/jira/browse/UIMA-3572
>             Project: UIMA
>          Issue Type: Bug
>          Components: Async Scaleout
>    Affects Versions: 2.4.2AS
>            Reporter: Jerry Cwiklik
>            Assignee: Jerry Cwiklik
>             Fix For: 2.5.0AS
>
>
> Looks like there is a race condition when handling multiple CASes coming in at the same
time from the same client. The first thread creates a Connection and sets up a Session then
the second thread sees the Connection made and proceeds to send a reply. The Connection has
not yet started though, resulting in 
> 20 Jan 2014 14:32:18,426  WARN DUCC.ActiveMQSessionExecutor - Received a message on a
connection which is not yet started. Have you forgotten to call Connection.start()? Connection:
ActiveMQConnection 
> Start the Connection as soon as it is created in a synchronized block.



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