Werk #4508: Clusters: Now always have their nodes as parents (Fixes Nagios inconsistency)

Component	Core & setup
Title	Clusters: Now always have their nodes as parents (Fixes Nagios inconsistency)
Date	Mar 21, 2017
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.5.0i1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.5.0i1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.5.0i1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.5.0i1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.5.0i1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.5.0i1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.5.0i1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.4.0b4 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

When configuring clusters via Check_MK it was possible to configure custom parent nodes for the cluster nodes when using the Nagios core. The Microcore already used it's nodes before as it was designed. We have now changed the Nagios handling to also enforce the nodes to be parent hosts of their cluster hosts.

The assumption is: The cluster host is reachable while at least one node is up.

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