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Posted to dev@qpid.apache.org by "Alan Conway (JIRA)" <ji...@apache.org> on 2014/08/08 11:29:13 UTC
[jira] [Resolved] (QPID-5966) HA mixing tx enqueue and non-tx
dequeue leaves extra messages on backup
[ https://issues.apache.org/jira/browse/QPID-5966?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alan Conway resolved QPID-5966.
-------------------------------
Resolution: Fixed
> HA mixing tx enqueue and non-tx dequeue leaves extra messages on backup
> ------------------------------------------------------------------------
>
> Key: QPID-5966
> URL: https://issues.apache.org/jira/browse/QPID-5966
> Project: Qpid
> Issue Type: Bug
> Components: C++ Clustering
> Affects Versions: 0.28
> Reporter: Alan Conway
> Assignee: Alan Conway
>
> Description of problem:
> With HA enabled, 2 or more node cluster. If a message is enqueued in a transaction, and then dequeued with no transaction, the message is left on the backup brokers.
> Version-Release number of selected component (if applicable):
> Up to trunk r1615992, 0.22-mrg f22fae4
> How reproducible: 100%
> Steps to Reproduce:
> qpid-send -a 'q;{create:always}' -b 20.0.20.200 --content-string foo --tx 1
> qpid-receive -a 'q;{create:always}' -b 20.0.20.200
> Then on each node:
> qpid-stat -q --ha-admin
> Actual results:
> Primary q is empty, backup q still has 1 message
> Message is enqueued twice on backup and dequeued only once.
> Expected results:
> Primary and backup q empty, message enqueued and dequeued once on primary and backup
> Additional info:
> With a tx dequeue (add --tx 1 to qpid-receive) the message is removed completely on the backup so at first glance things appear OK. However qpid-stat shows it is enqueued and dequeued _twice_ which is incorrect.
> Using the python client there is still a message left on the backup, but there is only 1 enqueue and no dequeue, rather than 2 enqueues and 1 dequeue.
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