Werk #12834: Do not fail on not existing time periods in "Check period for passive Check_MK services"

Component Core & Setup
Title Do not fail on not existing time periods in "Check period for passive Check_MK services"
Date May 25, 2021
Checkmk Editon Checkmk Enterprise (CEE)
Checkmk Version 1.6.0p25 2.0.0p5 2.1.0i1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

When time periods are configured in the ruleset "Check period for passive Check_MK services", this made the cmc fail on start. The normal behaviour of Checkmk is to create a warning message like "WARNING: The cmc_passive_check_period "PERIOD" used by service "old;Check_MK Discovery" does not exist, falling back to 24x7." and continue.

This is done for all other time period references, but did not work for this specific option. The fallback has now also been added to this options.

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