Package io.permazen.kv.raft

Class FollowerRole

java.lang.Object

io.permazen.kv.raft.Role

io.permazen.kv.raft.NonLeaderRole

io.permazen.kv.raft.FollowerRole

public class FollowerRole
extends NonLeaderRole

Raft follower role.

Method Summary

Modifier and Type	Method	Description
String	getLeaderAddress()	Get the address of my leader, if known.
String	getLeaderIdentity()	Get the identity of my leader, if known.
int	getNodesProbed()	Determine the number of nodes (including this node) that this node has successfully probed when probing for a majority of nodes with PingRequests prior to reverting to a candidate.
String	getVotedFor()	Get the identity of the node that this node voted for this term, if any.
boolean	isInstallingSnapshot()	Determine whether this node is currently in the process of receiving a whole database snapshot download.
String	toString()

Methods inherited from class io.permazen.kv.raft.NonLeaderRole

getElectionTimeout, startElection

Methods inherited from class io.permazen.kv.raft.Role

getKVDatabase, isLeaderLeaseActiveAt, isLeaderLeaseActiveNow

Methods inherited from class java.lang.Object

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

Method Details

getLeaderIdentity

public String getLeaderIdentity()

Get the identity of my leader, if known.

Returns:

leader identity, or null if not known

getLeaderAddress

public String getLeaderAddress()

Get the address of my leader, if known.

Returns:

leader address, or null if not known

getVotedFor

public String getVotedFor()

Get the identity of the node that this node voted for this term, if any.

Returns:

node voted for, or null if none

isInstallingSnapshot

public boolean isInstallingSnapshot()

Determine whether this node is currently in the process of receiving a whole database snapshot download.

Returns:

true if snapshot install is in progress

getNodesProbed

public int getNodesProbed()

Determine the number of nodes (including this node) that this node has successfully probed when probing for a majority of nodes with PingRequests prior to reverting to a candidate.

Returns:

the number of other nodes this node has successfully probed, or -1 if not probing

toString

public String toString()

Specified by:

toString in class Role