org.opendaylight.controller.cluster.datastore.policy

Class TwoNodeClusterRaftPolicy

java.lang.Object

org.opendaylight.controller.cluster.datastore.policy.TwoNodeClusterRaftPolicy

All Implemented Interfaces:

org.opendaylight.controller.cluster.raft.policy.RaftPolicy

public class TwoNodeClusterRaftPolicy
extends Object
implements org.opendaylight.controller.cluster.raft.policy.RaftPolicy

The TwoNodeClusterRaftPolicy is intended to be used in a two node deployment where when one instance of the controller goes down the other instance is to take over and move the state forward. When a TwoNodeClusterRaftPolicy is used Raft elections are disabled. This is primarily because we would need to specify the leader externally. Also since we want one node to continue to function while the other node is down we would need to apply a modification to the state before consensus occurs.

Constructor Summary

Constructors

Constructor and Description
TwoNodeClusterRaftPolicy()

Method Summary

Modifier and Type	Method and Description
boolean	applyModificationToStateBeforeConsensus()
boolean	automaticElectionsEnabled()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TwoNodeClusterRaftPolicy

public TwoNodeClusterRaftPolicy()

Method Detail

automaticElectionsEnabled

public boolean automaticElectionsEnabled()

Specified by:

automaticElectionsEnabled in interface org.opendaylight.controller.cluster.raft.policy.RaftPolicy

applyModificationToStateBeforeConsensus

public boolean applyModificationToStateBeforeConsensus()

Specified by:

applyModificationToStateBeforeConsensus in interface org.opendaylight.controller.cluster.raft.policy.RaftPolicy