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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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)