Werk #19089: Improve notification rule rendering

Component

Notifications

Title

Improve notification rule rendering

Date

Mar 3, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.6.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p25 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

In installations with many notification rules, the loading times of the notification page could be very long. Even saving notification rules could lead to an error (502).

Additionally, in large setups the notification pages could be very slow due to redundant permission loading and repeated user list computation. Both are now cached per request.

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