diff --git a/weed/pb/master.proto b/weed/pb/master.proto
index 3383d1dd5..7a257bb28 100644
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@@ -314,6 +314,7 @@ message LeaseAdminTokenRequest {
   int64 previous_lock_time = 2;
   string lock_name = 3;
   string client_name = 4;
+  string message = 5;
 }
 message LeaseAdminTokenResponse {
   int64 token = 1;
diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go
index 72fc23edf..681534fc3 100644
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@@ -2642,6 +2642,7 @@ type LeaseAdminTokenRequest struct {
 	PreviousLockTime int64  `protobuf:"varint,2,opt,name=previous_lock_time,json=previousLockTime,proto3" json:"previous_lock_time,omitempty"`
 	LockName         string `protobuf:"bytes,3,opt,name=lock_name,json=lockName,proto3" json:"lock_name,omitempty"`
 	ClientName       string `protobuf:"bytes,4,opt,name=client_name,json=clientName,proto3" json:"client_name,omitempty"`
+	Message          string `protobuf:"bytes,5,opt,name=message,proto3" json:"message,omitempty"`
 }
 
 func (x *LeaseAdminTokenRequest) Reset() {
@@ -2704,6 +2705,13 @@ func (x *LeaseAdminTokenRequest) GetClientName() string {
 	return ""
 }
 
+func (x *LeaseAdminTokenRequest) GetMessage() string {
+	if x != nil {
+		return x.Message
+	}
+	return ""
+}
+
 type LeaseAdminTokenResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -3571,7 +3579,7 @@ var file_master_proto_rawDesc = []byte{
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@@ -3581,104 +3589,105 @@ var file_master_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/weed/server/master_grpc_server_admin.go b/weed/server/master_grpc_server_admin.go
index 93c9e4e4e..983606476 100644
--- a/weed/server/master_grpc_server_admin.go
+++ b/weed/server/master_grpc_server_admin.go
@@ -62,6 +62,7 @@ type AdminLock struct {
 	accessSecret   int64
 	accessLockTime time.Time
 	lastClient     string
+	lastMessage    string
 }
 
 type AdminLocks struct {
@@ -75,15 +76,15 @@ func NewAdminLocks() *AdminLocks {
 	}
 }
 
-func (locks *AdminLocks) isLocked(lockName string) (clientName string, isLocked bool) {
+func (locks *AdminLocks) isLocked(lockName string) (clientName string, message string, isLocked bool) {
 	locks.RLock()
 	defer locks.RUnlock()
 	adminLock, found := locks.locks[lockName]
 	if !found {
-		return "", false
+		return "", "", false
 	}
-	glog.V(4).Infof("isLocked %v", adminLock.lastClient)
-	return adminLock.lastClient, adminLock.accessLockTime.Add(LockDuration).After(time.Now())
+	glog.V(4).Infof("isLocked %v: %v", adminLock.lastClient, adminLock.lastMessage)
+	return adminLock.lastClient, adminLock.lastMessage, adminLock.accessLockTime.Add(LockDuration).After(time.Now())
 }
 
 func (locks *AdminLocks) isValidToken(lockName string, ts time.Time, token int64) bool {
@@ -117,7 +118,7 @@ func (locks *AdminLocks) deleteLock(lockName string) {
 func (ms *MasterServer) LeaseAdminToken(ctx context.Context, req *master_pb.LeaseAdminTokenRequest) (*master_pb.LeaseAdminTokenResponse, error) {
 	resp := &master_pb.LeaseAdminTokenResponse{}
 
-	if lastClient, isLocked := ms.adminLocks.isLocked(req.LockName); isLocked {
+	if lastClient, lastMessage, isLocked := ms.adminLocks.isLocked(req.LockName); isLocked {
 		glog.V(4).Infof("LeaseAdminToken %v", lastClient)
 		if req.PreviousToken != 0 && ms.adminLocks.isValidToken(req.LockName, time.Unix(0, req.PreviousLockTime), req.PreviousToken) {
 			// for renew
@@ -126,7 +127,7 @@ func (ms *MasterServer) LeaseAdminToken(ctx context.Context, req *master_pb.Leas
 			return resp, nil
 		}
 		// refuse since still locked
-		return resp, fmt.Errorf("already locked by " + lastClient)
+		return resp, fmt.Errorf("already locked by %v: %v", lastClient, lastMessage)
 	}
 	// for fresh lease request
 	ts, token := ms.adminLocks.generateToken(req.LockName, req.ClientName)
diff --git a/weed/shell/command_collection_delete.go b/weed/shell/command_collection_delete.go
index da79b3437..8942c15da 100644
--- a/weed/shell/command_collection_delete.go
+++ b/weed/shell/command_collection_delete.go
@@ -36,7 +36,7 @@ func (c *commandCollectionDelete) Do(args []string, commandEnv *CommandEnv, writ
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_ec_balance.go b/weed/shell/command_ec_balance.go
index e5438b9c7..6cd91119b 100644
--- a/weed/shell/command_ec_balance.go
+++ b/weed/shell/command_ec_balance.go
@@ -108,7 +108,7 @@ func (c *commandEcBalance) Do(args []string, commandEnv *CommandEnv, writer io.W
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_ec_decode.go b/weed/shell/command_ec_decode.go
index c9f49745b..b2ca605c7 100644
--- a/weed/shell/command_ec_decode.go
+++ b/weed/shell/command_ec_decode.go
@@ -46,7 +46,7 @@ func (c *commandEcDecode) Do(args []string, commandEnv *CommandEnv, writer io.Wr
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_ec_encode.go b/weed/shell/command_ec_encode.go
index 3606f42e3..6add14749 100644
--- a/weed/shell/command_ec_encode.go
+++ b/weed/shell/command_ec_encode.go
@@ -66,7 +66,7 @@ func (c *commandEcEncode) Do(args []string, commandEnv *CommandEnv, writer io.Wr
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_ec_rebuild.go b/weed/shell/command_ec_rebuild.go
index c3f72ea91..409ec4329 100644
--- a/weed/shell/command_ec_rebuild.go
+++ b/weed/shell/command_ec_rebuild.go
@@ -64,7 +64,7 @@ func (c *commandEcRebuild) Do(args []string, commandEnv *CommandEnv, writer io.W
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_balance.go b/weed/shell/command_volume_balance.go
index 72c4c6db5..4c55de5fb 100644
--- a/weed/shell/command_volume_balance.go
+++ b/weed/shell/command_volume_balance.go
@@ -71,7 +71,7 @@ func (c *commandVolumeBalance) Do(args []string, commandEnv *CommandEnv, writer
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_check_disk.go b/weed/shell/command_volume_check_disk.go
index 4488badbb..643cccac3 100644
--- a/weed/shell/command_volume_check_disk.go
+++ b/weed/shell/command_volume_check_disk.go
@@ -51,7 +51,7 @@ func (c *commandVolumeCheckDisk) Do(args []string, commandEnv *CommandEnv, write
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_configure_replication.go b/weed/shell/command_volume_configure_replication.go
index 7e9627b40..27cba618b 100644
--- a/weed/shell/command_volume_configure_replication.go
+++ b/weed/shell/command_volume_configure_replication.go
@@ -45,7 +45,7 @@ func (c *commandVolumeConfigureReplication) Do(args []string, commandEnv *Comman
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_copy.go b/weed/shell/command_volume_copy.go
index b4dfbb78a..0a4ac5063 100644
--- a/weed/shell/command_volume_copy.go
+++ b/weed/shell/command_volume_copy.go
@@ -41,7 +41,7 @@ func (c *commandVolumeCopy) Do(args []string, commandEnv *CommandEnv, writer io.
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_delete.go b/weed/shell/command_volume_delete.go
index 135ad7285..30d71ba9f 100644
--- a/weed/shell/command_volume_delete.go
+++ b/weed/shell/command_volume_delete.go
@@ -38,7 +38,7 @@ func (c *commandVolumeDelete) Do(args []string, commandEnv *CommandEnv, writer i
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_delete_empty.go b/weed/shell/command_volume_delete_empty.go
index fdc4fcf6a..c98693147 100644
--- a/weed/shell/command_volume_delete_empty.go
+++ b/weed/shell/command_volume_delete_empty.go
@@ -40,7 +40,7 @@ func (c *commandVolumeDeleteEmpty) Do(args []string, commandEnv *CommandEnv, wri
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_fix_replication.go b/weed/shell/command_volume_fix_replication.go
index 4a4ed5f9f..2885ba11f 100644
--- a/weed/shell/command_volume_fix_replication.go
+++ b/weed/shell/command_volume_fix_replication.go
@@ -64,7 +64,7 @@ func (c *commandVolumeFixReplication) Do(args []string, commandEnv *CommandEnv,
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_fsck.go b/weed/shell/command_volume_fsck.go
index bd5241173..5f6ddd7c3 100644
--- a/weed/shell/command_volume_fsck.go
+++ b/weed/shell/command_volume_fsck.go
@@ -66,7 +66,7 @@ func (c *commandVolumeFsck) Do(args []string, commandEnv *CommandEnv, writer io.
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_mark.go b/weed/shell/command_volume_mark.go
index 7734ea9ce..53c2265b0 100644
--- a/weed/shell/command_volume_mark.go
+++ b/weed/shell/command_volume_mark.go
@@ -44,7 +44,7 @@ func (c *commandVolumeMark) Do(args []string, commandEnv *CommandEnv, writer io.
 		markWritable = true
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_mount.go b/weed/shell/command_volume_mount.go
index 385e43341..575051ffe 100644
--- a/weed/shell/command_volume_mount.go
+++ b/weed/shell/command_volume_mount.go
@@ -42,7 +42,7 @@ func (c *commandVolumeMount) Do(args []string, commandEnv *CommandEnv, writer io
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_move.go b/weed/shell/command_volume_move.go
index ec71ba2b3..796f74264 100644
--- a/weed/shell/command_volume_move.go
+++ b/weed/shell/command_volume_move.go
@@ -59,7 +59,7 @@ func (c *commandVolumeMove) Do(args []string, commandEnv *CommandEnv, writer io.
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_server_evacuate.go b/weed/shell/command_volume_server_evacuate.go
index 691d6d552..6a8aeab52 100644
--- a/weed/shell/command_volume_server_evacuate.go
+++ b/weed/shell/command_volume_server_evacuate.go
@@ -53,7 +53,7 @@ func (c *commandVolumeServerEvacuate) Do(args []string, commandEnv *CommandEnv,
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_server_leave.go b/weed/shell/command_volume_server_leave.go
index b1c42f4fd..4daa589be 100644
--- a/weed/shell/command_volume_server_leave.go
+++ b/weed/shell/command_volume_server_leave.go
@@ -43,7 +43,7 @@ func (c *commandVolumeServerLeave) Do(args []string, commandEnv *CommandEnv, wri
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_tier_download.go b/weed/shell/command_volume_tier_download.go
index 72331c8ce..57d3bf347 100644
--- a/weed/shell/command_volume_tier_download.go
+++ b/weed/shell/command_volume_tier_download.go
@@ -50,7 +50,7 @@ func (c *commandVolumeTierDownload) Do(args []string, commandEnv *CommandEnv, wr
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_tier_move.go b/weed/shell/command_volume_tier_move.go
index 348f1799a..bdd90e196 100644
--- a/weed/shell/command_volume_tier_move.go
+++ b/weed/shell/command_volume_tier_move.go
@@ -57,7 +57,7 @@ func (c *commandVolumeTierMove) Do(args []string, commandEnv *CommandEnv, writer
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_tier_upload.go b/weed/shell/command_volume_tier_upload.go
index 72f5347b0..a22fe92a1 100644
--- a/weed/shell/command_volume_tier_upload.go
+++ b/weed/shell/command_volume_tier_upload.go
@@ -68,7 +68,7 @@ func (c *commandVolumeTierUpload) Do(args []string, commandEnv *CommandEnv, writ
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_unmount.go b/weed/shell/command_volume_unmount.go
index 065cbf227..d5cb9f07c 100644
--- a/weed/shell/command_volume_unmount.go
+++ b/weed/shell/command_volume_unmount.go
@@ -42,7 +42,7 @@ func (c *commandVolumeUnmount) Do(args []string, commandEnv *CommandEnv, writer
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/command_volume_vacuum.go b/weed/shell/command_volume_vacuum.go
index ecd4d7756..2e09a8c1b 100644
--- a/weed/shell/command_volume_vacuum.go
+++ b/weed/shell/command_volume_vacuum.go
@@ -35,7 +35,7 @@ func (c *commandVacuum) Do(args []string, commandEnv *CommandEnv, writer io.Writ
 		return nil
 	}
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
+	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return
 	}
 
diff --git a/weed/shell/commands.go b/weed/shell/commands.go
index 6b614c159..02c0af59e 100644
--- a/weed/shell/commands.go
+++ b/weed/shell/commands.go
@@ -70,11 +70,12 @@ func (ce *CommandEnv) isDirectory(path string) bool {
 
 }
 
-func (ce *CommandEnv) confirmIsLocked() error {
+func (ce *CommandEnv) confirmIsLocked(args []string) error {
 
 	if ce.locker.IsLocking() {
 		return nil
 	}
+	ce.locker.SetMessage(fmt.Sprintf("%v", args))
 
 	return fmt.Errorf("need to run \"lock\" first to continue")
 
diff --git a/weed/wdclient/exclusive_locks/exclusive_locker.go b/weed/wdclient/exclusive_locks/exclusive_locker.go
index 2f033f36b..725fa307d 100644
--- a/weed/wdclient/exclusive_locks/exclusive_locker.go
+++ b/weed/wdclient/exclusive_locks/exclusive_locker.go
@@ -22,6 +22,7 @@ type ExclusiveLocker struct {
 	isLocking    bool
 	masterClient *wdclient.MasterClient
 	lockName     string
+	message      string
 }
 
 func NewExclusiveLocker(masterClient *wdclient.MasterClient, lockName string) *ExclusiveLocker {
@@ -87,6 +88,7 @@ func (l *ExclusiveLocker) RequestLock(clientName string) {
 					PreviousLockTime: atomic.LoadInt64(&l.lockTsNs),
 					LockName:         l.lockName,
 					ClientName:       clientName,
+					Message:          l.message,
 				})
 				if err == nil {
 					atomic.StoreInt64(&l.token, resp.Token)
@@ -123,3 +125,7 @@ func (l *ExclusiveLocker) ReleaseLock() {
 	atomic.StoreInt64(&l.token, 0)
 	atomic.StoreInt64(&l.lockTsNs, 0)
 }
+
+func (l *ExclusiveLocker) SetMessage(message string) {
+	l.message = message
+}