Werk #13843: Active discovery check: use cached data

Component	Checks & agents
Title	Active discovery check: use cached data
Date	Apr 6, 2022
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.2.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.1.0b6 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT 2.0.0p23 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

The active discovery check Check_MK Discovery did not use cached data. This could lead to lost logwatch messages.

Upon retriggering the Check_MK Discovery service, we now firstly trigger the Check_MK service (thereby updating the caches) and then run the Check_MK Discovery service on the cached data. That way, we get the live information without loosing log messages.

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