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https://issues.apache.org/jira/browse/YARN-10323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17218842#comment-17218842
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Szilard Nemeth commented on YARN-10323:
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Thanks [~bteke] for making this clear, I quickly prepared this Jira and
completely forgot to mention that the design document is written by
[~prabhujoseph]. We just discussed I will create this Jira itself. Didn't want
to take credits or something similar. Apologies for this.
> [Umbrella] YARN Diagnostic collector
> ------------------------------------
>
> Key: YARN-10323
> URL: https://issues.apache.org/jira/browse/YARN-10323
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Szilard Nemeth
> Assignee: Benjamin Teke
> Priority: Major
> Attachments: YARN-10323 Design of Diagnostics Collector.pdf
>
>
> Troubleshooting YARN problems can be difficult on a production environment.
> Collecting data before problems occur or actively collecting data in an
> on-demand basis could truly help tracking down issues.
> Some examples:
> 1. If application is hanging, application logs along with RM / NM logs could
> be collected, plus jstack of either the YARN daemons or the application
> container.
> 2. Similarly, when an application fails we may collect data.
> 3. Scheduler issues are quite common so good tooling that helps to spot
> issues would be crucial.
> Design document in the attachments section.
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