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From "Christoph John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DIRMINA-1076) Leaking NioProcessors/NioSocketConnectors hanging in call to dispose
Date Fri, 09 Feb 2018 15:09:00 GMT

    [ https://issues.apache.org/jira/browse/DIRMINA-1076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16358510#comment-16358510
] 

Christoph John commented on DIRMINA-1076:
-----------------------------------------

The exact version is actually Xubuntu 16.04. JDK version is 1.8.0_162-b12.

I'll have to check the cpu governor stuff next week as I don't have the necessary rights to
change this. But as it seems I am on powersave. :-/

{code}
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
powersave
powersave
powersave
powersave
{code}


> Leaking NioProcessors/NioSocketConnectors hanging in call to dispose
> --------------------------------------------------------------------
>
>                 Key: DIRMINA-1076
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-1076
>             Project: MINA
>          Issue Type: Bug
>    Affects Versions: 2.0.16
>            Reporter: Christoph John
>            Priority: Major
>         Attachments: mina-dispose-hang.txt, mina-test-log.txt, mina-test-patch.txt
>
>
> Follow-up to mailing list discussion.
> I was now able to reproduce the problem with a MINA test. Or let's say I did the brute-force
approach by re-running one test in an endless loop.
> I have attached a patch of AbstractIoServiceTest (against [https://github.com/apache/mina/tree/2.0])
and a stack trace. After a few loops the test is stuck. You can see a lot of threads hanging
in dispose() and the test is stuck when it tries to dispose the acceptor.
>  
> What is a little strange is that the javadoc says that connector.dispose(TRUE) should
not be called from an IoFutureListener, but in the test it is done anyway. However, changing
the parameter to FALSE does not help either.
>  
>  Is there anything that can be done to prevent this hang?



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