Checker usage in Warning

Hi,

Which value is to be modified to rectify checkmk checker usage which is in warning state

You can configure these parameters under Global Settings:

Setup - General - Global Settings - Monitoring Core - Maximum concurrent Checkmk checkers

If your monitoring instance is nearing its capacity, check out the official performance-tuning guide:
https://checkmk.atlassian.net/wiki/spaces/KB/pages/9473747/How-to+adjust+Checkmk+performance

TL;DR:

  • Do not assign more checkers than you have CPU cores.
  • Maximum checkers = number of cores - 1
  • Aim for an average CPU load below 80 %

If you can’t add more checkers (or cores), consider scaling out with a distributed setup:

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