[FLINK-18715] add cpu usage metric of jobmanager/taskmanager

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Do
• Affects Version/s: 1.11.1
• Fix Version/s: 1.11.3, 1.12.0
• Component/s: Runtime / Metrics
• Assignee: Unassigned
• Reporter: wgcn
• Created: 25/Jul/20 05:59
• Updated: 13/Nov/20 03:45
• Resolved: 13/Nov/20 03:45

Description

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.