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https://issues.apache.org/jira/browse/QPID-2364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12828113#action_12828113
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Alan Conway commented on QPID-2364:
-----------------------------------
Refactoring done in r904656
> Management updates in timer create inconsistencies in a cluster.
> ----------------------------------------------------------------
>
> Key: QPID-2364
> URL: https://issues.apache.org/jira/browse/QPID-2364
> Project: Qpid
> Issue Type: Bug
> Components: C++ Broker
> Affects Versions: 0.6
> Reporter: Alan Conway
> Assignee: Alan Conway
> Attachments: periodic-timer.patch
>
>
> Management updates are triggered by a timer. They are not predictable for the
> cluster and so can cause cluster shut-downs and inconsistent message delivery.
> We have a hack in place that suppresses exceptions when the session receives
> completions for transfers not yet sent (which is the usual manifestation of
> the
> unpredictability). I.e. we have in essence disabled consistency checking for
> management sessions. This solved immediate problems but would quickly stop
> working if sessions/connections could be used for management and other things
> (as will be more likely with QMFv2 where using management becomes quite
> straightforward).
> In a cluster, management updates need to be synchronized by executing them in
> the cluster dispatch thread rather than a timer thread.
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