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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3304) Default return values for resources in ResourceCalculatorProcessTree are inconsistent in case where functionality is not available.
Date Sun, 08 Mar 2015 21:47:38 GMT

    [ https://issues.apache.org/jira/browse/YARN-3304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14352283#comment-14352283
] 

Junping Du commented on YARN-3304:
----------------------------------

I would even think return -1 make more sense for unavailable case as it won't duplicate with
zero resource consumption case. 

> Default return values for resources in ResourceCalculatorProcessTree are inconsistent
in case where functionality is not available.
> -----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-3304
>                 URL: https://issues.apache.org/jira/browse/YARN-3304
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>            Reporter: Junping Du
>
> 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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