Fixed bug when more than one instance is checking a cluster
Fixed bug when more than one instance is checking a cluster

florian-reck/nagios-monitoring,florian-reck/nagios-monitoring,EXASOL/nagios-monitoring,florian-reck/nagios-monitoring,EXASOL/nagios-monitoring,EXASOL/nagios-monitoring,florian-reck/nagios-monitoring,EXASOL/nagios-monitoring