Werk #18486: mongodb_locks: only discover mongodb_locks if data is available

Component

Checks & agents

Title

mongodb_locks: only discover mongodb_locks if data is available

Date

Apr 1, 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
2.5.0p2	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p29	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

If the mk_mongodb agent plugin connects directly to a mongos instance, no locks information is returned, which caused the mongodb_locks service to go UNKNOWN. This has been fixed — the service is now only discovered when locks data is actually available.

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