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From "Pavel Moravec (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-5595) LVQ (Last Value Queue) not working
Date Tue, 04 Mar 2014 15:03:21 GMT

    [ https://issues.apache.org/jira/browse/QPID-5595?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13919493#comment-13919493
] 

Pavel Moravec commented on QPID-5595:
-------------------------------------

I know there were some changes to LVQ around 0.14 - 0.18.

How do you create the queue? Could you try:

qpid-config add queue myLVQueue --lvq-key=qpid.subject


or use address string like:

"myLVQueue; {create:always, node:{ x-declare:{ arguments:{ 'qpid.last_value_queue_key':'qpid.subject'}}}}"

> LVQ (Last Value Queue) not working
> ----------------------------------
>
>                 Key: QPID-5595
>                 URL: https://issues.apache.org/jira/browse/QPID-5595
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker
>    Affects Versions: 0.22
>         Environment: C++ broker, windows 7
>            Reporter: Kathryn M Kowalski
>
> We are trying to upgrade from qpid version 0.10 to 0.22 with the broker  running on Windows
7.   Existing Python 2.7 code that makes use of last value queues is not working.
> Queue is setup with qpid.last_value_key = qpid.subject and this was verified with qpid_tool.
 
> Using 0.22, when the queue is bound to an exchange that is getting messages with one
subject line and a heartbeat in the content the message depth continues to increase.  Using
0.10 message depth stays a 1 or 0.  If you drain the queue on the 0.22 broker all of the messages
that should have been overwritten are still there.



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