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https://issues.apache.org/jira/browse/QPID-3532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13132078#comment-13132078
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Rajith Attapattu commented on QPID-3532:
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Cool, go for it !
> Fix the blocking of JMS operations when failover happens
> --------------------------------------------------------
>
> Key: QPID-3532
> URL: https://issues.apache.org/jira/browse/QPID-3532
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Reporter: Alex Rudyy
> Assignee: Alex Rudyy
> Fix For: 0.13
>
> Attachments:
> QPID-3532-make-the-0-10-client-hold-the-failover-mutex-during-failover.patch
>
>
> When connection is lost and failover is started the Qpid Client should block
> on invocation of JMS operations which require sending or receiving data over
> the network.
> With current implementation the performing of certain operations during
> failover can lead to unexpected behaviour.
> For example, closing QueueBrowsers during failover has been observed to cause
> issues because it is possible to send the old subscription destination in a
> cancel command to the new broker as the close and failover are allowed to
> progress concurrently. As result of it the broker might close the session
> with a NOT_FOUND execution exception because failover has not finished queue
> re-creation on a new broker
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