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https://issues.apache.org/jira/browse/HDFS-14015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16667873#comment-16667873
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Yongjun Zhang commented on HDFS-14015:
--------------------------------------

I don't see  an API provided by jni to get the current thread id, but I saw one 
here: 

[https://stackoverflow.com/questions/11224394/obtaining-the-thread-id-for-java-threads-in-linux]

If it's too much hassle to include in this jira, please feel free to postpone 
that to a new jira.

Thanks.

 

 

> Improve error handling in hdfsThreadDestructor in native thread local storage
> -----------------------------------------------------------------------------
>
>                 Key: HDFS-14015
>                 URL: https://issues.apache.org/jira/browse/HDFS-14015
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: native
>    Affects Versions: 3.0.0
>            Reporter: Daniel Templeton
>            Assignee: Daniel Templeton
>            Priority: Major
>         Attachments: HDFS-14015.001.patch, HDFS-14015.002.patch, 
> HDFS-14015.003.patch, HDFS-14015.004.patch, HDFS-14015.005.patch, 
> HDFS-14015.006.patch
>
>
> In the hdfsThreadDestructor() function, we ignore the return value from the 
> DetachCurrentThread() call.  We are seeing cases where a native thread dies 
> while holding a JVM monitor, and it doesn't release the monitor.  We're 
> hoping that logging this error instead of ignoring it will shed some light on 
> the issue.  In any case, it's good programming practice.



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