[teiid-issues] [JBoss JIRA] (TEIID-3070) Netty worker threads cause system high cpu
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https://issues.jboss.org/browse/TEIID-3070?page=com.atlassian.jira.plugin...
]
Steven Hawkins commented on TEIID-3070:
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Updated master to 3.6.10 and addressed the test failure that Kylin was seeing. The
shutdown logic needed adjusting with the updated Netty, but is backwards compatible, so
the change was good to commit and can be backported as well. So the only thing left would
be patching instructions for the community version. Is this a common enough issue that we
want that on the download page or should we just put the instructions in this issue and/or
the release notes?
Netty worker threads cause system high cpu
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Key: TEIID-3070
URL: https://issues.jboss.org/browse/TEIID-3070
Project: Teiid
Issue Type: Bug
Components: Server
Affects Versions: 8.7, 8.9
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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