Werk #20252: Gerrit: show cache age for version check

Component

Checks & agents

Title

Gerrit: show cache age for version check

Date

Aug 6, 2026

Level

Trivial Change

Class

New Feature

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
2.5.0p12 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

The Gerrit version check caches its API call to reduce load on the monitored instance (see werk #17594), but there was no way to tell how stale a cached result was.

The special agent now embeds the cache timestamp and TTL into the gerrit_version section header. Checkmk's core picks this up automatically, so the service now shows cache age information ("Cache generated X ago", cache interval, elapsed cache lifespan) in the GUI without any further configuration.

There is nothing for the user to do; this information is shown automatically once the site is updated.

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