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https://issues.apache.org/jira/browse/KAFKA-1948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14318311#comment-14318311
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Tong Li commented on KAFKA-1948:
--------------------------------

Pulled down the latest trunk and run into this problem. It will be nice if 
someone can take a look. The test does not stuck always at the same place. I 
did notice there are tons of threads getting created and died. What I did is 
when the test hung, I ran this command.

top -H -p <theprocessid of the test java>

You will notice that many threads come and go. and the state of these threads 
are always S (meaning sleep). including the parent thread. Not really sure what 
the deal is.

> kafka.api.consumerTests are hanging
> -----------------------------------
>
>                 Key: KAFKA-1948
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1948
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Gwen Shapira
>
> Noticed today that very often when I run the full test suite, it hangs on 
> kafka.api.consumerTest (not always same test though). It doesn't reproduce 
> 100% of the time, but enough to be very annoying.
> I also saw it happening on trunk after KAFKA-1333:
> https://builds.apache.org/view/All/job/Kafka-trunk/389/



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