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https://issues.apache.org/jira/browse/QPID-4263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Conway resolved QPID-4263.
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Resolution: Not A Problem
Assignee: Alan Conway
> HA broker can crash due to priority queue corruption
> ----------------------------------------------------
>
> Key: QPID-4263
> URL: https://issues.apache.org/jira/browse/QPID-4263
> Project: Qpid
> Issue Type: Bug
> Components: C++ Broker
> Affects Versions: 0.18
> Reporter: Jason Dillaman
> Assignee: Alan Conway
>
> Similar to QPID-4262 and discovered via code review while investigating the
> other issue, it appears that it is possible for the priority queue's
> "messages" deques to become out-of-sync with their backing "fifo" deque if
> "PriorityQueue::setPosition" is invoked. That method will delete messages
> from the backing MessageDeque collection without removing the pointers to the
> deleted messages from the PriorityQueue.
> The HA and replication plugins can both invoke this method on a queue.
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