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Posted to commits@samza.apache.org by "Jake Maes (JIRA)" <ji...@apache.org> on 2017/11/29 00:55:00 UTC

[jira] [Created] (SAMZA-1518) Add CPU utilization and thread count to JVM metrics

Jake Maes created SAMZA-1518:
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             Summary: Add CPU utilization and thread count to JVM metrics
                 Key: SAMZA-1518
                 URL: https://issues.apache.org/jira/browse/SAMZA-1518
             Project: Samza
          Issue Type: Bug
            Reporter: Jake Maes


With the addition of multithreading in Samza, we've seen more jobs become bottlenecked on CPU. In order to help trouble shoot these cases, we should add the following metrics to JvmMetrics.scala:

process-cpu-usage - com.sun.management.OperatingSystemMXBean#getProcessCpuLoad()
system-cpu-usage - com.sun.management.OperatingSystemMXBean#getSystemCpuLoad()
open-file-descriptor-count - com.sun.management.UnixOperatingSystemMXBean#getOpenFileDescriptorCount()
thread-count - java.lang.management.ThreadMXBean#getThreadCount()

The first three metrics will only be emitted if the bean returned by ManagementFactory.getOperatingSystemMXBean() is of the appropriate type.





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