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https://issues.apache.org/jira/browse/YARN-4309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Varun Vasudev updated YARN-4309:
--------------------------------
    Attachment: YARN-4309.002.patch

bq .Linux or Unix?
Sorry, not Linux - this patch is for Unix only.

Uploaded a new version of the patch to address the issues raised by the 
pre-commit build.

> 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: Sub-task
>          Components: nodemanager
>            Reporter: Varun Vasudev
>            Assignee: Varun Vasudev
>         Attachments: YARN-4309.001.patch, YARN-4309.002.patch
>
>
> 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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