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https://issues.apache.org/jira/browse/DIRMINA-1006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15118064#comment-15118064
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Radovan Semancik commented on DIRMINA-1006:
-------------------------------------------
Hmmm ... nah. Does not work.
It is a bit more complicated. And I was wrong. There is actually wakeup()
invocation further down (line 1133 of the modified source code). This gets
invoked after wakeupCalled.getAndSet(false) and that sets it again to true for
the next iteration. So it spins again.
> mina2.0.9 NioProcessor thread make cpu 100%
> -------------------------------------------
>
> Key: DIRMINA-1006
> URL: https://issues.apache.org/jira/browse/DIRMINA-1006
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0.9
> Environment: Linux version 2.6.32-358.el6.x86_64 (Red Hat 4.4.7-3)
> java version "1.7.0_67"
> Java(TM) SE Runtime Environment (build 1.7.0_67-b01)
> Java HotSpot(TM) 64-Bit Server VM (build 24.65-b04, mixed mode)
> Reporter: briokyd
> Priority: Blocker
> Attachments: cpu100_01.png, cpu100_02.png, cpu100_03.png,
> threadDump78658_20150211_151742.log
>
>
> running as client after the Exception (java.io.IOException: Connection reset
> by peer) appeared , cpu 100%
> thread dump:
> "NioProcessor-931" prio=10 tid=0x00007f3788004800 nid=0xd41 runnable
> [0x00007f394f4f3000]
> 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 <0x00000007842118f0> (a sun.nio.ch.Util$2)
> - locked <0x00000007842118e0> (a java.util.Collections$UnmodifiableSet)
> - locked <0x00000007842114b0> (a sun.nio.ch.EPollSelectorImpl)
> at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> at
> org.apache.mina.transport.socket.nio.NioProcessor.select(NioProcessor.java:97)
> at
> org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1074)
> at
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> Locked ownable synchronizers:
> - <0x0000000784211210> (a
> java.util.concurrent.ThreadPoolExecutor$Worker)
> is that nio epollWait bug?
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