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From "Eric Payne (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2127) Move YarnUncaughtExceptionHandler into Hadoop common
Date Thu, 17 Aug 2017 16:46:00 GMT

     [ https://issues.apache.org/jira/browse/YARN-2127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Eric Payne updated YARN-2127:
    Attachment: YARN-2127.001.patch

Thanks [~stevel@apache.org]. I'm attaching a patch that subclasses {{YarnUncaughtExceptionHandler}}
from {{HadoopUncaughtExceptionHandler}}. The next steps will be to have HDFS subclass it as
well and add the handler in the HDFS daemons. However, after discussing with some of the HDFS
crew here, it is a little complicated because there are cases where subthreads of the daemons
could die and the daemon doesn't care, and there are cases where it depends on this behavior.
There are discussions about this in HDFS-11192, HDFS-2911, and HDFS-313

> Move YarnUncaughtExceptionHandler into Hadoop common
> ----------------------------------------------------
>                 Key: YARN-2127
>                 URL: https://issues.apache.org/jira/browse/YARN-2127
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: api
>    Affects Versions: 2.4.0
>            Reporter: Steve Loughran
>            Assignee: Eric Payne
>            Priority: Minor
>         Attachments: YARN-2127.001.patch
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
> Create a superclass of {{YarnUncaughtExceptionHandler}}  in the hadoop-common code (retaining
the original for compatibility).
> This would be available for any hadoop application to use, and the YARN-679 launcher
could automatically set up the handler.

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