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https://issues.apache.org/jira/browse/YARN-2934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14983985#comment-14983985
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Varun Saxena commented on YARN-2934:
------------------------------------

One more comment :
FSDataInputStream#read is not guaranteed to read all the bytes which you have 
passed. You have to check number of bytes read and loop until read returns -1.

> 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
>
>
> 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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