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https://issues.apache.org/jira/browse/QPID-7317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15355169#comment-15355169
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Brian Bouterse commented on QPID-7317:
--------------------------------------
One other point of information. I believe my machine resumed from sleep just
before I attempted to do this publish. The order of events would have been
these:
1. create my vagrant VM and start the processes which use qpid.messaging
2. put my host (and thus the VM) to sleep
3. resume my host (and the VM)
4. ssh back to the VM
5. run the publish (no process restart)
6. observe the deadlock.
Note that there are two other processes which did publish messages correctly,
but the third process publish deadlocked. Each message is published by a
different process. My point is that not all processes were affected, just that
1 process. I don't know why.
> Deadlock on publish
> -------------------
>
> Key: QPID-7317
> URL: https://issues.apache.org/jira/browse/QPID-7317
> Project: Qpid
> Issue Type: Bug
> Components: Python Client
> Affects Versions: 0.32
> Environment: python-qpid-0.32-13.fc23.noarch
> Reporter: Brian Bouterse
> Attachments: bt.txt, lsof.txt, taabt.txt
>
>
> When publishing a task with qpid.messaging it deadlocks and our application
> cannot continue. This has not been a problem for several releases, but within
> a few days recently, another Satellite developer and I both experienced the
> issue on separate machines, different distros. He is using a MRG built
> pacakge (not sure of version). I am using python-qpid-0.32-13.fc23.
> Both deadlocked machines had core dumps taken on the deadlocked processes and
> only show only 1 Qpid thread when I expect there to be 2. There are other
> mongo threads, but those are idle as expected and not related. The traces
> show our application calling into qpid.messaging to publish a message to the
> message bus.
> This problem happens intermittently, and in cases where message publish is
> successful I've verified by core dump that there are the expected 2 threads
> for Qpid.
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