NewAdminServer creates a admin server.

ErrNoLeader returns for no leader in raft cluster.

ErrNotLeader returns for the node is not leader.

AdminServer is a server for handling api call.

BinlogServerHandler is used for the api call of handling binlog serverhandler with lock will keep calling api with no compete.

BinlogSyncerHandler is used handling the api call of binlog syncer.handler with lock will keep calling api with no compete.

MembershipHandler is used for handling the api call of membership in raft cluster.

Role represents a node in cluster.

Cluster is responsible for a collection of members in one etcd cluster.

Server is a kingbus server interface.