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https://issues.apache.org/jira/browse/YARN-285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Derek Dagit updated YARN-285:
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Attachment: YARN-285.patch
New patch with some formatting/comments improvements
> RM should be able to provide a tracking link for apps that have already been
> purged
> -----------------------------------------------------------------------------------
>
> Key: YARN-285
> URL: https://issues.apache.org/jira/browse/YARN-285
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 3.0.0, 0.23.5
> Reporter: Derek Dagit
> Assignee: Derek Dagit
> Attachments: YARN-285-branch-0.23.patch, YARN-285-branch-0.23.patch,
> YARN-285.patch, YARN-285.patch
>
>
> As applications complete, the RM tracks their IDs in a completed list. This
> list is routinely truncated to limit the total number of application
> remembered by the RM.
> When a user clicks the History for a job, either the browser is redirected to
> the application's tracking link obtained from the stored application
> instance. But when the application has been purged from the RM, an error is
> displayed.
> In very busy clusters the rate at which applications complete can cause
> applications to be purged from the RM's internal list within hours, which
> breaks the proxy URLs users have saved for their jobs.
> We would like the RM to provide valid tracking links persist so that users
> are not frustrated by broken links.
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