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https://issues.apache.org/jira/browse/QPID-6944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15056313#comment-15056313
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Mark Soderquist commented on QPID-6944:
---------------------------------------
I have attached a graph of the CPU use. Note at the beginning of the graph we
had four producers. Around 9:45 we shut down all producers except one. The
producer is a canary check that produces and consumes two messages. At 10:05 we
have a barrage of health checks occur that produce and consume about 20
messages.
> SelectorThread causing livelock
> -------------------------------
>
> Key: QPID-6944
> URL: https://issues.apache.org/jira/browse/QPID-6944
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: qpid-java-6.0
> Environment: Red Hat Enterprise Linux Server release 6.7 (Santiago)
> OpenJDK Runtime Environment (build 1.8.0_65-b17)
> OpenJDK 64-Bit Server VM (build 25.65-b01, mixed mode)
> Reporter: Mark Soderquist
> Attachments: qpid.cpu.png, threaddump-1449856663270.tdump
>
>
> The org.apache.qpid.server.transport.SelectorThread is causing live lock.
> While the application still functions it causes the CPU to run at nearly
> 100%. See attached thread dump.
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