raft cluster

wip: raft does not care about migrating

wip: optimize code

wip: raft election

wip

wip: fix raft leader missing log entries

wip

fix a dead lock

batch set slot route

wip: raft persist

wip

refactor cluster suite

remove relay

rename relay2

refactor: allow customizing client factory

test raft

refactor re-balance

avoid errors caused by inconsistent status on follower nodes during raft commits

test raft election

cluster/pubsub_test.go

@@ -9,6 +9,7 @@ import (
 )
 
 func TestPublish(t *testing.T) {
+	testNodeA := testCluster[0]
 	channel := utils.RandString(5)
 	msg := utils.RandString(5)
 	conn := connection.NewFakeConn()