Werk #18140: Stop AWS/RDS check from crashing if metrics are not available

Component

Checks & agents

Title

Stop AWS/RDS check from crashing if metrics are not available

Date

Jan 9, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0b1	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p19	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

If you have previously discovered AWS/RDS services and the monitored AWS instance is unavailable or has been disabled in the meantime the check would crash, expecting the data.

With this Werk, the check will go stale instead.

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