Explore the latest product updates and best practices at our hybrid Checkmk Conference #12 from June 16-18, 2026 – Register here
back to website

Werk #11873: Fix exception caused by custom host attributes when saving host changes

Component Setup
Title Fix exception caused by custom host attributes when saving host changes
Date Jan 15, 2021
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.1.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT
2.0.0b5 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

When some kind of custom host attribute has been defined and is used in the host configuration, this may lead to an exception like this when editing or deleting hosts: Exception: AttributeError ('HostAttributeMYATTRIBUTEConcrete' object has no attribute 'is_explicit').

To the list of all Werks