Checkmk Werk 14285: Fix frozen Microcore (Livestatus not responding) during config reloads

ID: 14285 Title: Fix frozen Microcore (Livestatus not responding) during config reloads Component: Core & setup Level: 2 Class: Bug fix Version: 2.2.0i1 The reload of the Microcore core and it's helper processed could freeze when the core had notifications pending during reload. This was caused by a deadlock between the Notification helper and the Microcore. The Microcore was still alive but waiting to the notification helper to terminate while the notification helper waited for the Microcore. while the cmc.log showed a message like: <tt>still X unsent events, sending them now</tt>.