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https://issues.apache.org/jira/browse/FLINK-18715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17166213#comment-17166213
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wgcn commented on FLINK-18715:
------------------------------
Thanks for your concern [~trohrmann]. We use yarn as resource management
system which provide cpu isolation function by cgroup ,but we can not get
the cpu ratio metric of containers . So we add a metric in flink process.
we can adjust the vcore according to the metric . Maybe the improvement is
suitable for yarn :)
> add cpu usage metric of jobmanager/taskmanager
> -------------------------------------------------
>
> Key: FLINK-18715
> URL: https://issues.apache.org/jira/browse/FLINK-18715
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Metrics
> Affects Versions: 1.11.1
> Reporter: wgcn
> Priority: Major
> Fix For: 1.12.0, 1.11.2
>
>
> flink process add cpu usage metric, user can determine that their job is
> io bound /cpu bound ,so that they can increase/decrese cpu core in the
> container (k8s,yarn). If it's nessary
> . you can assign it to me ，I come up with a idea calculating cpu usage
> ratio using ManagementFactory.getRuntimeMXBean().getUptime() and
> ManagementFactory.getOperatingSystemMXBean().getProcessCpuTime over a period
> of time . it can get a value in single cpu core environment. and user can
> use the value to calculate cpu usage ratio by dividing num of container's
> cpu core.
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