diff --git a/weed/cluster/lock_client.go b/weed/cluster/lock_client.go
index 4ebb067df..5b8daf1a7 100644
--- a/weed/cluster/lock_client.go
+++ b/weed/cluster/lock_client.go
@@ -31,9 +31,9 @@ func NewLockClient(grpcDialOption grpc.DialOption, seedFiler pb.ServerAddress) *
 type LiveLock struct {
 	key            string
 	renewToken     string
-	expireAtNs     int64
-	filer          pb.ServerAddress
-	cancelCh       chan struct{}
+	expireAtNs int64
+	hostFiler  pb.ServerAddress
+	cancelCh   chan struct{}
 	grpcDialOption grpc.DialOption
 	isLocked       bool
 	self           string
@@ -45,7 +45,7 @@ type LiveLock struct {
 func (lc *LockClient) NewShortLivedLock(key string, owner string) (lock *LiveLock) {
 	lock = &LiveLock{
 		key:            key,
-		filer:          lc.seedFiler,
+		hostFiler:      lc.seedFiler,
 		cancelCh:       make(chan struct{}),
 		expireAtNs:     time.Now().Add(5 * time.Second).UnixNano(),
 		grpcDialOption: lc.grpcDialOption,
@@ -60,7 +60,7 @@ func (lc *LockClient) NewShortLivedLock(key string, owner string) (lock *LiveLoc
 func (lc *LockClient) StartLongLivedLock(key string, owner string, onLockOwnerChange func(newLockOwner string)) (lock *LiveLock) {
 	lock = &LiveLock{
 		key:            key,
-		filer:          lc.seedFiler,
+		hostFiler:      lc.seedFiler,
 		cancelCh:       make(chan struct{}),
 		expireAtNs:     time.Now().Add(lock_manager.LiveLockTTL).UnixNano(),
 		grpcDialOption: lc.grpcDialOption,
@@ -129,7 +129,7 @@ func (lock *LiveLock) StopShortLivedLock() error {
 	defer func() {
 		lock.isLocked = false
 	}()
-	return pb.WithFilerClient(false, 0, lock.filer, lock.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+	return pb.WithFilerClient(false, 0, lock.hostFiler, lock.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		_, err := client.DistributedUnlock(context.Background(), &filer_pb.UnlockRequest{
 			Name:       lock.key,
 			RenewToken: lock.renewToken,
@@ -139,7 +139,7 @@ func (lock *LiveLock) StopShortLivedLock() error {
 }
 
 func (lock *LiveLock) doLock(lockDuration time.Duration) (errorMessage string, err error) {
-	err = pb.WithFilerClient(false, 0, lock.filer, lock.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+	err = pb.WithFilerClient(false, 0, lock.hostFiler, lock.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		resp, err := client.DistributedLock(context.Background(), &filer_pb.LockRequest{
 			Name:          lock.key,
 			SecondsToLock: int64(lockDuration.Seconds()),
@@ -156,8 +156,8 @@ func (lock *LiveLock) doLock(lockDuration time.Duration) (errorMessage string, e
 		if resp != nil {
 			errorMessage = resp.Error
 			if resp.LockHostMovedTo != "" {
-				lock.filer = pb.ServerAddress(resp.LockHostMovedTo)
-				lock.lc.seedFiler = lock.filer
+				lock.hostFiler = pb.ServerAddress(resp.LockHostMovedTo)
+				lock.lc.seedFiler = lock.hostFiler
 			}
 			if resp.LockOwner != "" {
 				lock.owner = resp.LockOwner