org.apache.ratis.statemachine

接口 StateMachine.LeaderEventApi

封闭接口:

StateMachine

public static interface StateMachine.LeaderEventApi

An optional API for leader-only event notifications. The method in this interface will be invoked only when the server is the leader.

字段概要

字段

限定符和类型	字段和说明
static StateMachine.LeaderEventApi	DEFAULT A noop implementation of StateMachine.LeaderEventApi.

方法概要

限定符和类型	方法和说明
default void	notifyFollowerSlowness(org.apache.ratis.proto.RaftProtos.RoleInfoProto leaderInfo) 已过时。 Use #notifyFollowerSlowness(RoleInfoProto, RaftPeer).
default void	notifyFollowerSlowness(org.apache.ratis.proto.RaftProtos.RoleInfoProto leaderInfo, RaftPeer slowFollower) Notify the StateMachine that the given follower is slow.
default void	notifyLeaderReady() Notify the StateMachine that this server becomes ready after changed to leader.
default void	notifyNotLeader(Collection<TransactionContext> pendingEntries) Notify StateMachine that this server is no longer the leader.

字段详细资料

DEFAULT

static final StateMachine.LeaderEventApi DEFAULT

A noop implementation of StateMachine.LeaderEventApi.

方法详细资料

notifyFollowerSlowness

default void notifyFollowerSlowness(org.apache.ratis.proto.RaftProtos.RoleInfoProto leaderInfo,
                                    RaftPeer slowFollower)

Notify the StateMachine that the given follower is slow. This notification is based on "raft.server.rpc.slowness.timeout".

参数:

leaderInfo - information about the current node role and rpc delay information

slowFollower - The follower being slow.

另请参阅:

RaftServerConfigKeys.Rpc.SLOWNESS_TIMEOUT_KEY

notifyFollowerSlowness

@Deprecated
default void notifyFollowerSlowness(org.apache.ratis.proto.RaftProtos.RoleInfoProto leaderInfo)

已过时。 Use #notifyFollowerSlowness(RoleInfoProto, RaftPeer).

notifyNotLeader

default void notifyNotLeader(Collection<TransactionContext> pendingEntries)
                      throws IOException

Notify StateMachine that this server is no longer the leader.

抛出:

IOException

notifyLeaderReady

default void notifyLeaderReady()

Notify the StateMachine that this server becomes ready after changed to leader.