Gera Shegalov commented on YARN-2688:

Localizer diagnostics was improved by YARN-2377.

> Better diagnostics on Container Launch failures
> -----------------------------------------------
>                 Key: YARN-2688
>                 URL: https://issues.apache.org/jira/browse/YARN-2688
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Arun C Murthy
> We need better diagnostics on container launch failures due to errors like 
> localizations issues, wrong command for container launch etc. Currently, if 
> the container doesn't launch, we get nothing - not even container logs since 
> there are no logs to aggregate either.

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