Key concepts

collector
A set of Resource Manager services that provide monitoring capabilities for a specific network location. Collector services are deployed into a Control Center resource pool through the Resource Manager browser interface.
collector pool
A Control Center resource pool that is dedicated for use by one or more Resource Manager collectors; usually, just one. Most deployments use one collector pool for each distinct network location, although each collector pool typically includes multiple Control Center hosts.
collector pool VIP
A virtual IP address that is assigned a collector pool, to float among the hosts that are members of the pool. Resource Manager services that require a permanent IP address are unaffected by the status of specific pool hosts. The virtual IP address is created and assigned through the Control Center browser interface.
master pool
A Control Center resource pool that contains only the Control Center master host. By isolating the master host in its own pool and configuring a ZooKeeper ensemble, Resource Manager services are not affected when Control Center internal services are temporarily unavailable. The recommended name for this pool is master.
Resource Manager pool
A Control Center resource pool that runs Resource Manager infrastructure services and other key services. This resource pool must be on the same subnet as the master pool. A Resource Manager pool includes a minimum of two Control Center hosts. The recommended name is Resource Manager.