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From "Hidden (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DIRMINA-989) Frequent CancelledKeyException
Date Sun, 12 Oct 2014 20:47:33 GMT
Hidden created DIRMINA-989:
------------------------------

             Summary: Frequent CancelledKeyException
                 Key: DIRMINA-989
                 URL: https://issues.apache.org/jira/browse/DIRMINA-989
             Project: MINA
          Issue Type: Bug
          Components: Core
    Affects Versions: 2.0.8
         Environment: Debian 7.6 x86_64, JRE 1.7.0_67
            Reporter: Hidden
            Priority: Minor
             Fix For: 2.0.9


I was told by Mr. L├ęcharny to post this here so that it can be linked in a changelog. 

Since we've updated to MINA 2.0.8, we've been getting this exception every few minutes:
java.nio.channels.CancelledKeyException
    at sun.nio.ch.SelectionKeyImpl.ensureValid(SelectionKeyImpl.java:73)
    at sun.nio.ch.SelectionKeyImpl.interestOps(SelectionKeyImpl.java:77)
    at org.apache.mina.transport.socket.nio.NioProcessor.setInterestedInWrite(NioProcessor.java:287)
    at org.apache.mina.transport.socket.nio.NioProcessor.setInterestedInWrite(NioProcessor.java:45)
    at org.apache.mina.core.polling.AbstractPollingIoProcessor.flushNow(AbstractPollingIoProcessor.java:880)
    at org.apache.mina.core.polling.AbstractPollingIoProcessor.flush(AbstractPollingIoProcessor.java:778)
    at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$700(AbstractPollingIoProcessor.java:67)
    at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1126)
    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)

It only occurs in a production environment when there are many clients.



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