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https://issues.apache.org/jira/browse/YARN-2934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15061915#comment-15061915
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Varun Vasudev commented on YARN-2934:
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I'm not too fussed either way. Globs are probably easier for an end user. 
Seeing as [~jira.shegalov] feels strongly about this, I'll defer to him unless 
you have an example app log file that a glob can't catch but a regex would.

> Improve handling of container's stderr 
> ---------------------------------------
>
>                 Key: YARN-2934
>                 URL: https://issues.apache.org/jira/browse/YARN-2934
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Gera Shegalov
>            Assignee: Naganarasimha G R
>            Priority: Critical
>         Attachments: YARN-2934.v1.001.patch, YARN-2934.v1.002.patch, 
> YARN-2934.v1.003.patch, YARN-2934.v1.004.patch, YARN-2934.v1.005.patch, 
> YARN-2934.v1.006.patch, YARN-2934.v1.007.patch, YARN-2934.v1.008.patch
>
>
> Most YARN applications redirect stderr to some file. That's why when 
> container launch fails with {{ExitCodeException}} the message is empty.



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