Werk #10253: Fix possible AttributeError exception on "Parameters of service" page

Component

Setup

Title

Fix possible AttributeError exception on "Parameters of service" page

Date

Oct 9, 2019

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.0.0i1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.6.0p5	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

When trying to view the parameters of a "Number of threads" service while having locally configured rules that were saved with Checkmk before version 1.6, an "AttributeError" crash occurred.

The reason is that this ruleset was converted from a single WARN/CRIT parameter set to a more complex set of parameters. The check and rule editor are correctly transforming the old values, but this is not possible on the "Parameters of service" page.

Instead of the crash Checkmk now prints an error message with a hint that you can open the rule in question for editing and save it again to fix this issue.

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