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https://issues.apache.org/jira/browse/YARN-4589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17264255#comment-17264255
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Eric Payne commented on YARN-4589:
----------------------------------

bq. I don't think I need to add a unit test for this, as it is only adding a 
log message.
Agreed. The changes LGTM.
+1
I will commit today.

> Diagnostics for localization timeouts is lacking
> ------------------------------------------------
>
>                 Key: YARN-4589
>                 URL: https://issues.apache.org/jira/browse/YARN-4589
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Chang Li
>            Assignee: Chang Li
>            Priority: Major
>         Attachments: YARN-4589.004.patch, YARN-4589.005.patch, 
> YARN-4589.2.patch, YARN-4589.3.patch, YARN-4589.patch
>
>
> When a container takes too long to localize it manifests as a timeout, and 
> there's no indication that localization was the issue. We need diagnostics 
> for timeouts to indicate the container was still localizing when the timeout 
> occurred.



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