Werk #13279: Fixed unintentionally stopping of monitoring core

Component Core & setup
Title Fixed unintentionally stopping of monitoring core
Date Oct 11, 2021
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 2.0.0p13 2.1.0b1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

Fixed race condition which led to a missing monitoring core configuration. If several components needed a new configuration at the same time, there was a chance that the configuration for the core was lost. If the core starts without configuration, it will be stopped again immediately. Furthermore, the core remains deactivated in most cases, because it only receives a reload command, which does not include a restart.

The error occurred more often in scenarios where automatic service discovery, the DCD and manual ActivateChanges were used simultaneously.

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