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Posted to yarn-issues@hadoop.apache.org by "Weiwei Yang (JIRA)" <ji...@apache.org> on 2018/10/17 00:30:00 UTC

[jira] [Created] (YARN-8896) Limit the maximum number of container assignments per heartbeat

Weiwei Yang created YARN-8896:
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             Summary: Limit the maximum number of container assignments per heartbeat
                 Key: YARN-8896
                 URL: https://issues.apache.org/jira/browse/YARN-8896
             Project: Hadoop YARN
          Issue Type: Improvement
    Affects Versions: 3.0.0, 2.9.0
            Reporter: Weiwei Yang


YARN-4161 adds a configuration \{{yarn.scheduler.capacity.per-node-heartbeat.maximum-container-assignments}} to control max number of container assignments per heartbeat, however the default value is -1. This could potentially cause the CS gets stuck in the while loop causing issue like YARN-8513. We should change this to a finite number, e.g 100.



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