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Werk #19221: Fix processing of services with too long names

Component The Checkmk Micro Core
Title Fix processing of services with too long names
Date Jul 13, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
3.0.0b1
Not yet released
Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p10
Not yet released
Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p35
Not yet released
Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Services with names longer than 250 characters were processed incorrectly. Any host carrying such a service had all its services stuck in pending state.

The root cause was that the overly long service was removed from active monitoring but remained in the internal configuration cache, causing a persistent mismatch between the two.

Starting with this release, services exceeding the name length limit are excluded from the internal configuration cache as well, preventing the stale-pending condition. Additionally, a warning is displayed in the GUI for each affected service to help administrators identify and address overly long service names.

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