| Name | Description | Type | Package | Framework |
| ClusterSingletonManager | Manages singleton actor instance among all cluster nodes or a group of nodes tagged with a specific role. | Class | akka.cluster.singleton | Akka |
| ClusterSingletonManager$ | Class | akka.cluster.singleton | Akka | |
| ClusterSingletonManager .Internal$ | Class | akka.cluster.singleton.ClusterSingletonManager | Akka | |
| ClusterSingletonManagerIsStuck | Thrown when a consistent state can't be determined within the defined retry limits. | Class | akka.cluster.singleton | Akka |
| ClusterSingletonManagerSettings | param: singletonName The actor name of the child singleton actor. | Class | akka.cluster.singleton | Akka |
| ClusterSingletonManagerSettings$ | Class | akka.cluster.singleton | Akka | |
| ClusterSingletonMessageSerializer | INTERNAL API: Serializer of ClusterSingleton messages. | Class | akka.cluster.singleton.protobuf | Akka |
| ClusterSingletonProxy | The ClusterSingletonProxy works together with the ClusterSingletonManager to provide a distributed proxy to the singleton actor. | Class | akka.cluster.singleton | Akka |
| ClusterSingletonProxy$ | Class | akka.cluster.singleton | Akka | |
| ClusterSingletonProxySettings | param: singletonName The actor name of the singleton actor that is started by the ClusterSingletonManager. | Class | akka.cluster.singleton | Akka |
| ClusterSingletonProxySettings$ | Class | akka.cluster.singleton | Akka | |