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Werk #14908: Activation no longer skips changes from remote sites

Component Setup
Title Activation no longer skips changes from remote sites
Date Sep 21, 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
2.5.0p15
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Activating changes in a distributed setup could report success and still show changes as pending afterwards.

Configuration changes recorded on a remote site are picked up by the central site once a minute and added to that site's pending changes. They keep their original timestamp, so they can end up behind changes that were already queued for the site and are in fact newer. The activation skipped those entries and left them in the list, although it reported success.

This was a display problem only: the changes are already active on the remote site, so no configuration was missing anywhere. The leftover entries disappeared with the next activation.

Technical background

An activation selects the changes to activate by timestamp, but used to remove the activated ones from the site's change list by position. Both agree only while that list is ordered by time, which carried over changes break. Selection and removal now use the same criterion.

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