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  • PDF report with graphs of
    • CPU
    • Memory
    • OMD <SITENAME> Performance
    • activate the "Core statistics" snap in
    • Check_MK 
    • Disk I/O Summary
  • The local structure
    • find -L ~/local > local.txt (as site user)

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Let's give you an example:

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With

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Core Statistics snap-in, you can check the load of the fetcher and helper. At 70%, we recommend increasing these values in the

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Global Settings. The CPU load and memory consumption will grow while you increase these values.

That's why we also recommend checking these graphs:

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You will find more information about the fetcher and checker architecture here:

https://blog.checkmk.com/checkmk-2.0-cmc

https://checkmk.com/werk/11500

Note

Important information about the Checkers: The checkers should not exceed your CPU core count!


Adjust the helper settings

If you decide to adjust the helper settings, please be aware of these settings:

Setup → General → Global Settings → Monitoring Core →

  • Maximum concurrent active checks

    Note

    The usage should stay under 80% on average.


  • Maximum concurrent Checkmk fetchers

    Note

    With increasing the number of fetchers, your RAM usage will rise, so make sure to adjust this setting carefully and keep an eye on the memory consumption of your server.

    The usage should stay under 80% on average.


  • Maximum concurrent Checkmk checkers

    Note

    The number of checkers should not be higher than your CPU core count! If you have more than two cores, the rule of thumb is: Maximum checkers = number of cores - 1 .

    The usage should stay under 80% on average.


  • Maximum concurrent Livestatus connections

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If you face issues like this:

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Please see this manual to check the Livestatus Performance

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