[teiid-issues] [JBoss JIRA] (TEIID-3070) Netty worker threads cause system high cpu
Steven Hawkins (JIRA)
issues at jboss.org
Wed Oct 8 12:30:11 EDT 2014
[ https://issues.jboss.org/browse/TEIID-3070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13009969#comment-13009969 ]
Steven Hawkins commented on TEIID-3070:
---------------------------------------
Is there any indication of when a 3.6.10 netty will be released so that we can resolve this fully from the community side - and possibly add patching instructions to the download page?
> Netty worker threads cause system high cpu
> ------------------------------------------
>
> Key: TEIID-3070
> URL: https://issues.jboss.org/browse/TEIID-3070
> Project: Teiid
> Issue Type: Bug
> Components: Server
> Affects Versions: 8.7
> Environment: JDV 6.1.0.DR2
> JDV 6.0
> Reporter: Kylin Soong
> Assignee: Kylin Soong
>
> I have hit this issue many times in deploying a VDB to JDV, All CPU be used by netty worker threads:
> ~~~
> "New I/O worker #3" daemon prio=10 tid=0x00007fc71c0d2000 nid=0x320b runnable [0x00007fc7074f3000]
> java.lang.Thread.State: RUNNABLE
> at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
> at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
> at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> - locked <0x00000000c42b4318> (a sun.nio.ch.Util$2)
> - locked <0x00000000c42b4328> (a java.util.Collections$UnmodifiableSet)
> - locked <0x00000000c42b42d0> (a sun.nio.ch.EPollSelectorImpl)
> at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:64)
> ~~~
> Seems this is a exist netty issue, search "jboss netty high cpu" via google we can get lots of result.
> Below link have detailed depiction about this issue;
> https://github.com/kylinsoong/teiid-samples/tree/master/highcpu
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