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Posted to yarn-dev@hadoop.apache.org by "Miklos Szegedi (JIRA)" <ji...@apache.org> on 2018/06/22 20:00:00 UTC

[jira] [Created] (YARN-8452) FairScheduler.update can take long time if yarn.scheduler.fair.sizebasedweight is on

Miklos Szegedi created YARN-8452:
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             Summary: FairScheduler.update can take long time if yarn.scheduler.fair.sizebasedweight is on
                 Key: YARN-8452
                 URL: https://issues.apache.org/jira/browse/YARN-8452
             Project: Hadoop YARN
          Issue Type: Bug
          Components: fairscheduler
            Reporter: Miklos Szegedi
            Assignee: Szilard Nemeth


Basically we recalculate the weight every time, even if the inputs did not change. This causes high cpu usage, if the cluster has lots of apps.



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