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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3304) ResourceCalculatorProcessTree#getCpuUsagePercent default return value is inconsistent with other getters
Date Wed, 11 Mar 2015 20:30:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-3304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14357536#comment-14357536
] 

Vinod Kumar Vavilapalli commented on YARN-3304:
-----------------------------------------------

How about we simplify this and throw an explicit exception when we think it is unavailable
and let higher layers handle it appropriately when that happens?

IAC, I'd like us to make some progress to unblock 2.7. Tx.

> 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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