Haibo Chen created YARN-8911:
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Summary: NM incorrectly account for container cpu utilization by
their number of vcores
Key: YARN-8911
URL: https://issues.apache.org/jira/browse/YARN-8911
Project: Hadoop YARN
Issue Type: Bug
Components: nodemanager
Reporter: Haibo Chen
Assignee: Haibo Chen
ResourceUtilization represents the cpu utilization with a float number in [0,
1.0], i.e. the percentage of cpu usage across the node. However, when
Containers Monitor tracks the total aggregate resource utilization of all
containers, it adds up the total number of vcores used by all running
containers.
See [the
code|https://github.com/apache/hadoop/blob/beb850d8f7f1fefa7a6d9502df2b4a4eea372523/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainersMonitorImpl.java#L672]
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