Werk #19594: Event simulator: Fix "Match site" for remote sites

Component	Event Console
Title	Event simulator: Fix "Match site" for remote sites
Date	Oct 16, 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 2.5.0p18 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.4.0p39 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Previously, the event simulator checked the "Match site" condition of Event Console rules against the site the GUI runs on, usually your central site. It ignored the site you selected under "Simulate for site". In a distributed setup this had two effects:

• A rule restricted to a remote site never matched when you simulated an event for that site.
• A rule restricted to the central site matched even when you simulated an event for a remote site.

The simulator now checks the condition against the site you simulate for.

Real event processing wasn't affected, because the Event Console on each site matches rules against its own site.

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