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Muhammad Samir Khan commented on YARN-9671: ------------------------------------------- Edited description: will handle priority inversion metrics separately in another jira. > Improve Locality Scheduling when cluster is busy > ------------------------------------------------ > > Key: YARN-9671 > URL: https://issues.apache.org/jira/browse/YARN-9671 > Project: Hadoop YARN > Issue Type: Improvement > Reporter: Muhammad Samir Khan > Assignee: Muhammad Samir Khan > Priority: Major > > When a cluster is very busy, scheduling opportunities are few and far > between. Scheduling opportunities are how an application knows when to give > up looking for decent locality. > It doesn't make sense to work hard waiting for locality when the odds of it > coming are very small and it may actually take a very long time to actually > give up. > This causes the priority of queues to be violated which is the last thing we > want to do when the cluster is full. > Add a mode to disable skipping locality when cluster is busy. -- This message was sent by Atlassian JIRA (v7.6.14#76016) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org