Package org.apache.zookeeper.server.quorum

Interface Summary

Interface	Description
Election
FollowerMXBean	Follower MBean
LeaderElectionMXBean	Leader election protocol MBean.
LeaderMXBean	Leader MBean.
LocalPeerMXBean	A local zookeeper server MBean interface.
ObserverMXBean	Observer MX Bean interface, implemented by ObserverBean
QuorumMXBean	An MBean representing a zookeeper cluster nodes (aka quorum peers)
QuorumStats.Provider
RemotePeerMXBean	A proxy for a remote quorum peer.
ServerMXBean	A quorum server MBean.

Class Summary

Class	Description
AuthFastLeaderElection	Deprecated This class has been deprecated as of release 3.4.0.
AuthFastLeaderElection.Notification
AuthFastLeaderElection.ToSend
BufferStats	Provides live statistics about Jute buffer usage in term of proposal and client request size.
CommitProcessor	This RequestProcessor matches the incoming committed requests with the locally submitted requests.
FastLeaderElection	Implementation of leader election using TCP.
FastLeaderElection.Notification	Notifications are messages that let other peers know that a given peer has changed its vote, either because it has joined leader election or because it learned of another peer with higher zxid or same zxid and higher server id
FastLeaderElection.ToSend	Messages that a peer wants to send to other peers.
Follower	This class has the control logic for the Follower.
FollowerBean	Follower MBean interface implementation
FollowerRequestProcessor	This RequestProcessor forwards any requests that modify the state of the system to the Leader.
FollowerZooKeeperServer	Just like the standard ZooKeeperServer.
Leader	This class has the control logic for the Leader.
Leader.Proposal
LeaderBean	Leader MBean interface implementation.
LeaderElection	Deprecated This class has been deprecated as of release 3.4.0.
LeaderElection.ElectionResult
LeaderElectionBean	Leader election MBean interface implementation
LeaderRequestProcessor	Responsible for performing local session upgrade.
LeaderSessionTracker	The leader session tracker tracks local and global sessions on the leader.
LeaderZooKeeperServer	Just like the standard ZooKeeperServer.
Learner	This class is the superclass of two of the three main actors in a ZK ensemble: Followers and Observers.
LearnerHandler	There will be an instance of this class created by the Leader for each learner.
LearnerSessionTracker	The learner session tracker is used by learners (followers and observers) to track zookeeper sessions which may or may not be echoed to the leader.
LearnerSnapshot
LearnerSnapshotThrottler	Utility class to limit the number of concurrent snapshots from a leader to observers and followers.
LearnerSyncRequest
LearnerZooKeeperServer	Parent class for all ZooKeeperServers for Learners
LocalPeerBean	Implementation of the local peer MBean interface.
LocalSessionTracker	Local session tracker.
Observer	Observers are peers that do not take part in the atomic broadcast protocol.
ObserverRequestProcessor	This RequestProcessor forwards any requests that modify the state of the system to the Leader.
ObserverZooKeeperServer	A ZooKeeperServer for the Observer node type.
PrependableSocket
ProposalRequestProcessor	This RequestProcessor simply forwards requests to an AckRequestProcessor and SyncRequestProcessor.
QuorumBean
QuorumCnxManager	This class implements a connection manager for leader election using TCP.
QuorumCnxManager.InitialMessage
QuorumCnxManager.Message
QuorumPeer	This class manages the quorum protocol.
QuorumPeer.AddressTuple
QuorumPeer.QuorumServer
QuorumPeerConfig
QuorumPeerMain	Configuration file
QuorumStats
QuorumZooKeeperServer	Abstract base class for all ZooKeeperServers that participate in a quorum.
ReadOnlyBean	ReadOnly MX Bean interface, implemented by ReadOnlyBean
ReadOnlyRequestProcessor	This processor is at the beginning of the ReadOnlyZooKeeperServer's processors chain.
ReadOnlyZooKeeperServer	A ZooKeeperServer which comes into play when peer is partitioned from the majority.
RemotePeerBean	A remote peer bean only provides limited information about the remote peer, and the peer cannot be managed remotely.
SendAckRequestProcessor
ServerBean	An abstract base class for the leader and follower MBeans.
StateSummary	This class encapsulates the state comparison logic.
SyncedLearnerTracker
SyncedLearnerTracker.QuorumVerifierAcksetPair
UnifiedServerSocket	A ServerSocket that can act either as a regular ServerSocket, as a SSLServerSocket, or as both, depending on the constructor parameters and on the type of client (TLS or plaintext) that connects to it.
UnifiedServerSocket.UnifiedSocket	The result of calling accept() on a UnifiedServerSocket.
UpgradeableSessionTracker	A session tracker that supports upgradeable local sessions.
Vote

Enum Summary

Enum	Description
QuorumPeer.LearnerType
QuorumPeer.ServerState

Exception Summary

Exception	Description
Leader.XidRolloverException
QuorumCnxManager.InitialMessage.InitialMessageException
QuorumPeerConfig.ConfigException
SnapshotThrottleException	Thrown when a Leader has too many concurrent snapshots being sent to observers.