Werk #16376: DCD: Not respecting "Validity of missing data" setting

Component Checks & agents
Title DCD: Not respecting "Validity of missing data" setting
Date Jan 23, 2024
Checkmk Version 2.4.0b1 2.3.0b1 2.2.0p22 2.1.0p39
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Affected Editions
2.4.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.2.0p22 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.1.0p39 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

This fixes disappearing hosts in case of temporarily missing data around the time when a cleanup background job is run (around midnight).

In case a piggybacked host temporarily did not receive any data while the background (cron) job cmk --cleanup-piggyback was executed, a subsequent run of the DCD would not respect the "Validity of missing data" setting, wrongly removing the affected host from the monitoring configuration.

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