Werk #19344: Metric backend: cap maximum memory limit at 90%

Component	Setup
Title	Metric backend: cap maximum memory limit at 90%
Date	May 5, 2026
Level	Trivial Change
Class	New Feature
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.6.0b1 Not yet released Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.5.0p2 Not yet released Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

The metric backend's Memory limit setting can no longer be configured above 90%. The previous upper bound of 200% allowed configurations that could starve the rest of the monitoring stack of memory on the same host.

If you currently have this value set above 90%, it will be automatically capped to 90%. No manual action is required.

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