Werk #18174: otel: Return status unknown if metric contains value a non numerical number (NaN or Inf)

Component

Checks & agents

Title

otel: Return status unknown if metric contains value a non numerical number (NaN or Inf)

Date

Jul 30, 2025

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.5.0b1 Not yet released	Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p10	Checkmk Cloud (CCE), Checkmk MSP (CME)

When monitoring via Otel, it is possible that a value can be NaN (Not a Number) or Inf (Infinite). Currently this will lead to a crash. With this werk we handle NaN and Inf values gracefully and return an Unknown status.

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