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If you see CPU Utilization reaches 100% - What are the things we need to check?

1 ) checked kv-> SHOW PERF

2) IOSTAT output

3) JESTAT


validated all the above, and we see max CPU utilization in Oracle NoSQL Database. what are the things we need to check now?

Answers

  • Are you seeing the high CPU utilization on the server side? I'm guessing that is the case, but just want to be sure.

    What sort of operations are being performed on the store at the time you see the high CPU usage? Is the high usage constant or perhaps in response to particular operations?

    Did you take a look at the debug logs to see if there are any exceptions or other logging that might point to a problem?

  • SureshDooly-Oracle
    SureshDooly-Oracle Member Posts: 35 Employee

    Are you seeing the high CPU utilization on the server side? I'm guessing that is the case, but just want to be sure.

    Yes, that is right. I see NoSQL pid is occupying a lot of CPU. When I check the mpstat it shows 88% idle.


    Actually, this issue has been already addressed in a service ticket. I opened this to get more clarity on how to diagnose, what are other tools to check in future.


    Regards,

    Suresh Umapathy