# Package org.apache.cassandra.gms

Interface Summary
Interface | Description
--- | ---
FailureDetectorMBean |
GossiperMBean |
IEndpointStateChangeSubscriber | This is called by an instance of the IEndpointStateChangePublisher to notify interested parties about changes in the the state associated with any endpoint.
IFailureDetectionEventListener | Implemented by the Gossiper to convict an endpoint based on the PHI calculated by the Failure Detector on the inter-arrival times of the heart beats.
IFailureDetector | An interface that provides an application with the ability to query liveness information of a node in the cluster.

Class Summary
Class | Description
--- | ---
EchoMessage |
EchoMessage.EchoMessageSerializer |
EndpointState | This abstraction represents both the HeartBeatState and the ApplicationState in an EndpointState instance.
FailureDetector | This FailureDetector is an implementation of the paper titled "The Phi Accrual Failure Detector" by Hayashibara.
GossipDigest | Contains information about a specified list of Endpoints and the largest version of the state they have generated as known by the local endpoint.
GossipDigestAck | This ack gets sent out as a result of the receipt of a GossipDigestSynMessage by an endpoint.
GossipDigestAck2 | This ack gets sent out as a result of the receipt of a GossipDigestAckMessage.
GossipDigestAck2VerbHandler |
GossipDigestAckVerbHandler |
GossipDigestSyn | This is the first message that gets sent out as a start of the Gossip protocol in a round.
GossipDigestSynVerbHandler |
Gossiper | This module is responsible for Gossiping information for the local endpoint.
GossipShutdownVerbHandler |
TokenSerializer |
VersionedValue | This abstraction represents the state associated with a particular node which an application wants to make available to the rest of the nodes in the cluster.
VersionedValue.VersionedValueFactory |
VersionGenerator | A unique version number generator for any state that is generated by the local node.

Enum Summary
Enum | Description
--- | ---
ApplicationState |