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Posted to dev@ambari.apache.org by "Srimanth Gunturi (JIRA)" <ji...@apache.org> on 2015/06/18 02:31:00 UTC

[jira] [Created] (AMBARI-11986) Stack advisor not picking correct reference host consistently

Srimanth Gunturi created AMBARI-11986:
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             Summary: Stack advisor not picking correct reference host consistently
                 Key: AMBARI-11986
                 URL: https://issues.apache.org/jira/browse/AMBARI-11986
             Project: Ambari
          Issue Type: Bug
          Components: contrib
    Affects Versions: 2.1.0
            Reporter: Srimanth Gunturi
            Assignee: Srimanth Gunturi
            Priority: Critical
             Fix For: 2.1.0


If a cluster had 100 hosts where first host had 60GB ram and rest of hosts had 3GB ram. The stack-advisor code picks the first host (60GB ram) for some calculations (like 'ramPerContainer'), and then picks host with minimum ram (3GB ram) for 'yarn.scheduler.minimum-allocation-mb'.

Due to this, the {{yarn.scheduler.minimum-allocation-mb}} is greater than {{yarn.scheduler.maximum-allocation-mb}}.




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