Package org.graylog2.cluster.leader

Interface LeaderElectionService

All Superinterfaces:

com.google.common.util.concurrent.Service

All Known Implementing Classes:

AutomaticLeaderElectionService, FakeLeaderElectionService, StaticLeaderElectionService

public interface LeaderElectionService
extends com.google.common.util.concurrent.Service

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.common.util.concurrent.Service

com.google.common.util.concurrent.Service.Listener, com.google.common.util.concurrent.Service.State

Method Summary

Modifier and Type	Method	Description
boolean	isLeader()	Check if the current node is the leader of the cluster.

Methods inherited from interface com.google.common.util.concurrent.Service

addListener, awaitRunning, awaitRunning, awaitRunning, awaitTerminated, awaitTerminated, awaitTerminated, failureCause, isRunning, startAsync, state, stopAsync

Method Details

isLeader

boolean isLeader()

Check if the current node is the leader of the cluster.

This method might be called frequently. Implementations should be performant and resource-friendly.

Returns:

true if the current node is the leader, false if it is not