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https://issues.apache.org/jira/browse/YARN-4309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14978867#comment-14978867
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Varun Vasudev commented on YARN-4309:
-------------------------------------

Yeah, tar-ing up the local dir may not be the best idea. However dumping the 
directory contents(file listings) and the contents of launch_container.sh 
should be ok?

> Add debug information to application logs when a container fails
> ----------------------------------------------------------------
>
>                 Key: YARN-4309
>                 URL: https://issues.apache.org/jira/browse/YARN-4309
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: nodemanager
>            Reporter: Varun Vasudev
>            Assignee: Varun Vasudev
>
> Sometimes when a container fails, it can be pretty hard to figure out why it 
> failed.
> My proposal is that if a container fails, we collect information about the 
> container local dir and dump it into the container log dir. Ideally, I'd like 
> to tar up the directory entirely, but I'm not sure of the security and space 
> implications of such a approach. At the very least, we can list all the files 
> in the container local dir, and dump the contents of launch_container.sh(into 
> the container log dir).
> When log aggregation occurs, all this information will automatically get 
> collected and make debugging such failures much easier.



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