Derek Dagit created YARN-285:
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Summary: 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: 0.23.5, 3.0.0
Reporter: Derek Dagit
Assignee: Derek Dagit
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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