FilterConns removes connections which do not conform to the given criteria.

LargerGroupMajorMinorVersion finds the version of the most numerous member group by version.

UniqueAddrs return unique addresses while preserving initial order.

EventCluster is dispatched after the very first connection to the cluster or the first connection after client disconnected.and dispatched when all connections to the cluster are closed.

EventConnection is dispatched when a connection to a member is opened/closed.

EventMembers is dispatched when cluster service finds out new members are added to the cluster or when members are removed from cluster.

FailoverService is responsible for cluster failover state and attempts management.

AddressTranslator is used to resolve private ip address of cloud services.