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https://issues.apache.org/jira/browse/YARN-8895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16657579#comment-16657579
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Young Chen commented on YARN-8895:
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[~subru] [~wangda], [~jlowe], [~sunilg] - if you have time to take a look, let
me know what you think. Any suggestions are welcome!
Thanks!
> Improve YARN Error diagnostics
> -------------------------------
>
> Key: YARN-8895
> URL: https://issues.apache.org/jira/browse/YARN-8895
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Young Chen
> Assignee: Young Chen
> Priority: Minor
>
> Currently identifying error sources can be quite difficult, as they are
> written into an unstructured string "diagnostics" field. This is present in
> container statuses returned to the RM and in application attempts in the RM.
> These errors are difficult to classify without hard-coding diagnostic string
> searches.
> This Jira aims to add a structured error field in NM and RM that preserves
> failure information and source component to enable faster and clearer error
> diagnosis
>
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