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Posted to yarn-issues@hadoop.apache.org by "Junping Du (JIRA)" <ji...@apache.org> on 2015/03/09 14:26:38 UTC
[jira] [Commented] (YARN-3304)
ResourceCalculatorProcessTree#getCpuUsagePercent default return value is
inconsistent with other getters
[ https://issues.apache.org/jira/browse/YARN-3304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14352962#comment-14352962 ]
Junping Du commented on YARN-3304:
----------------------------------
Agree that negative value sounds very odd. However, if we are really failed to get cpu usage info, does value of 0 confuse user that metrics works fine and the cpu usage is very low here?
> ResourceCalculatorProcessTree#getCpuUsagePercent default return value is inconsistent with other getters
> --------------------------------------------------------------------------------------------------------
>
> Key: YARN-3304
> URL: https://issues.apache.org/jira/browse/YARN-3304
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Reporter: Junping Du
> Assignee: Karthik Kambatla
> Priority: Blocker
>
> Per discussions in YARN-3296, getCpuUsagePercent() will return -1 for unavailable case while other resource metrics are return 0 in the same case which sounds inconsistent.
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