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From "Gordon Sim (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (QPID-4223) [New HA] Completion isn't sent when queue that has acquired but unacknowledged messages is deleted
Date Thu, 16 Aug 2012 12:55:38 GMT

     [ https://issues.apache.org/jira/browse/QPID-4223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gordon Sim updated QPID-4223:
-----------------------------

    Attachment: QPID-4223.patch

There are two issues:

(i) a simple bug in the QueueRegistry prevents observers being notified of the queue's 'destruction'

(ii) In QueueGuard::cancel(), the code only completes messages in the AVAILABLE state (which
does not include the ACQUIRED message in the reproducer)

Only the first of these issues exists on trunk (there is a different mechanism used for cancel
there).

This patch against the 0.18 branch fixes both issues.
                
> [New HA] Completion isn't sent when queue that has acquired but unacknowledged messages
is deleted
> --------------------------------------------------------------------------------------------------
>
>                 Key: QPID-4223
>                 URL: https://issues.apache.org/jira/browse/QPID-4223
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker, C++ Clustering
>    Affects Versions: 0.18
>            Reporter: Andy Goldstein
>            Assignee: Alan Conway
>         Attachments: QPID-4223.patch
>
>
> When testing the new HA in 0.18 (from the svn branch, revision 1370693), I've run into
a problem where I can't run qpid-cpp-benchmark after I shut down one of the backups.  Here's
the scenario:
> Start 3 brokers (in my test on 3 different hosts) using the following command line:
> qpidd --auth no --load-module ha.so --ha-cluster yes --ha-brokers-url <insert url
here> --ha-replicate all
> Promote 1 of the brokers to primary.  Run qpid-cpp-benchmark with the default options.
 The test should succeed and provide results.  Next, quit 1 of the 2 backups.  Finally, run
qpid-cpp-benchmark again.  This time, it hangs.  Looking at the output of "qpid-stat -q,"
I see there are some unacked messages that have been delivered to the running qpid-receive
process.

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