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From "Jerry Cwiklik (JIRA)" <...@uima.apache.org>
Subject [jira] [Created] (UIMA-2479) Modify UIMA-AS JMS Listener to Allow Incoming CAS While The Listener is Stopping
Date Mon, 15 Oct 2012 15:52:04 GMT
Jerry Cwiklik created UIMA-2479:
-----------------------------------

             Summary: Modify UIMA-AS JMS Listener to Allow Incoming CAS While The Listener
is Stopping
                 Key: UIMA-2479
                 URL: https://issues.apache.org/jira/browse/UIMA-2479
             Project: UIMA
          Issue Type: Improvement
          Components: Async Scaleout
            Reporter: Jerry Cwiklik
            Priority: Minor
             Fix For: 2.4.0AS


When in quiesce mode, the UIMA-AS service stops its jms listeners to prevent more CASes from
coming in. In a rare event when the listener is told to stop, it may actually may be reading
a message from its queue. In such case, the jms listener rejects the message. This effectively
results in a message loss. The listener should allow the message to be processed instead.
There is an API which allows for programmatic override of the default behavior acceptMessagesWhileStopping(true/false).
The UIMA-AS code should change the setting to true to allow the message while the listener
is stopping.

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