org.apache.ratis.server

接口 RaftConfiguration

public interface RaftConfiguration

A configuration is a subset of the members in a RaftGroup. The configuration of a cluster may change from time to time. In a configuration, - the peers are voting members such as LEADER, CANDIDATE and FOLLOWER; - the listeners are non-voting members. This class captures the current configuration and the previous configuration of a cluster. The objects of this class are immutable.

另请参阅:

RaftProtos.RaftPeerRole

方法概要

限定符和类型	方法和说明
default Collection<RaftPeer>	getAllPeers() The same as getAllPeers(RaftPeerRole.FOLLOWER).
Collection<RaftPeer>	getAllPeers(org.apache.ratis.proto.RaftProtos.RaftPeerRole role)
default Collection<RaftPeer>	getCurrentPeers() The same as getCurrentPeers(RaftPeerRole.FOLLOWER).
Collection<RaftPeer>	getCurrentPeers(org.apache.ratis.proto.RaftProtos.RaftPeerRole roles)
long	getLogEntryIndex()
RaftPeer	getPeer(RaftPeerId id, org.apache.ratis.proto.RaftProtos.RaftPeerRole... roles)
default Collection<RaftPeer>	getPreviousPeers() The same as getPreviousPeers(RaftPeerRole.FOLLOWER).
Collection<RaftPeer>	getPreviousPeers(org.apache.ratis.proto.RaftProtos.RaftPeerRole roles)

方法详细资料

getPeer

RaftPeer getPeer(RaftPeerId id,
                 org.apache.ratis.proto.RaftProtos.RaftPeerRole... roles)

返回:

the peer corresponding to the given id; or return null if the peer is not in this configuration.

getAllPeers

default Collection<RaftPeer> getAllPeers()

The same as getAllPeers(RaftPeerRole.FOLLOWER).

getAllPeers

Collection<RaftPeer> getAllPeers(org.apache.ratis.proto.RaftProtos.RaftPeerRole role)

返回:

all the peers of the given role in the current configuration and the previous configuration.

getCurrentPeers

default Collection<RaftPeer> getCurrentPeers()

The same as getCurrentPeers(RaftPeerRole.FOLLOWER).

getCurrentPeers

Collection<RaftPeer> getCurrentPeers(org.apache.ratis.proto.RaftProtos.RaftPeerRole roles)

返回:

all the peers of the given role in the current configuration.

getPreviousPeers

default Collection<RaftPeer> getPreviousPeers()

The same as getPreviousPeers(RaftPeerRole.FOLLOWER).

getPreviousPeers

Collection<RaftPeer> getPreviousPeers(org.apache.ratis.proto.RaftProtos.RaftPeerRole roles)

返回:

all the peers of the given role in the previous configuration.

getLogEntryIndex

long getLogEntryIndex()

返回:

the index of the corresponding log entry for the current configuration.