HealthReport: Health report
HealthMatchingClusterConfig: Cluster config matches
HealthHTTPReachable: Cluster can be reached under the expected URL via HTTP
HealthLDAPAdmins: Proportion of administrators that were found in the LDAP directory
HealthSMTPConnect: SMTP server is reachable
HealthWidgetMemcached: Memcached server is serving widgets correctly
HealthActiveJobExecutors: Proportion of job workers accepting new jobs
InstanceIdentification: Instance identification
InstanceId: Instance id
ClusterId: Cluster id
