fix typo

add remove logs

weed/server/master_server.go

@@ -65,8 +65,8 @@ type MasterServer struct {
 
 	boundedLeaderChan chan int
 
-	onPeerUpdatDoneCn      chan string
-	onPeerUpdatDoneCnExist bool
+	onPeerUpdateDoneCn      chan string
+	onPeerUpdateDoneCnExist bool
 
 	// notifying clients
 	clientChansLock sync.RWMutex
@@ -118,7 +118,7 @@ func NewMasterServer(r *mux.Router, option *MasterOption, peers map[string]pb.Se
 		Cluster:         cluster.NewCluster(),
 	}
 	ms.boundedLeaderChan = make(chan int, 16)
-	ms.onPeerUpdatDoneCn = make(chan string)
+	ms.onPeerUpdateDoneCn = make(chan string)
 
 	ms.MasterClient.OnPeerUpdate = ms.OnPeerUpdate
 
@@ -366,14 +366,15 @@ func (ms *MasterServer) OnPeerUpdate(update *master_pb.ClusterNodeUpdate, startF
 					hashicorpRaft.ServerAddress(peerAddress.ToGrpcAddress()), 0, 0)
 			}
 		}
-		if ms.onPeerUpdatDoneCnExist {
-			ms.onPeerUpdatDoneCn <- peerName
+		if ms.onPeerUpdateDoneCnExist {
+			ms.onPeerUpdateDoneCn <- peerName
 		}
 	} else if isLeader {
 		go func(peerName string) {
+			raftServerRemovalTimeAfter := time.After(RaftServerRemovalTime)
 			for {
 				select {
-				case <-time.After(RaftServerRemovalTime):
+				case <-raftServerRemovalTimeAfter:
 					err := ms.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
 						_, err := client.RaftRemoveServer(context.Background(), &master_pb.RaftRemoveServerRequest{
 							Id:    peerName,
@@ -384,14 +385,16 @@ func (ms *MasterServer) OnPeerUpdate(update *master_pb.ClusterNodeUpdate, startF
 					if err != nil {
 						glog.Warningf("failed to removing old raft server %s: %v", peerName, err)
 					}
+					glog.V(0).Infof("old raft server %s removed", peerName)
 					return
-				case peerDone := <-ms.onPeerUpdatDoneCn:
+				case peerDone := <-ms.onPeerUpdateDoneCn:
 					if peerName == peerDone {
+						glog.V(0).Infof("raft server %s remove canceled", peerName)
 						return
 					}
 				}
 			}
 		}(peerName)
-		ms.onPeerUpdatDoneCnExist = true
+		ms.onPeerUpdateDoneCnExist = true
 	}
 }