diff --git a/app/router/command/command.pb.go b/app/router/command/command.pb.go
index 9c469682a..6e4145b31 100644
--- a/app/router/command/command.pb.go
+++ b/app/router/command/command.pb.go
@@ -293,53 +293,6 @@ func (x *TestRouteRequest) GetPublishResult() bool {
 	return false
 }
 
-type GetBalancersRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	BalancerTags []string `protobuf:"bytes,1,rep,name=balancerTags,proto3" json:"balancerTags,omitempty"`
-}
-
-func (x *GetBalancersRequest) Reset() {
-	*x = GetBalancersRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_router_command_command_proto_msgTypes[3]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *GetBalancersRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*GetBalancersRequest) ProtoMessage() {}
-
-func (x *GetBalancersRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_router_command_command_proto_msgTypes[3]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use GetBalancersRequest.ProtoReflect.Descriptor instead.
-func (*GetBalancersRequest) Descriptor() ([]byte, []int) {
-	return file_app_router_command_command_proto_rawDescGZIP(), []int{3}
-}
-
-func (x *GetBalancersRequest) GetBalancerTags() []string {
-	if x != nil {
-		return x.BalancerTags
-	}
-	return nil
-}
-
 type PrincipleTargetInfo struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -351,7 +304,7 @@ type PrincipleTargetInfo struct {
 func (x *PrincipleTargetInfo) Reset() {
 	*x = PrincipleTargetInfo{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_router_command_command_proto_msgTypes[4]
+		mi := &file_app_router_command_command_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -364,7 +317,7 @@ func (x *PrincipleTargetInfo) String() string {
 func (*PrincipleTargetInfo) ProtoMessage() {}
 
 func (x *PrincipleTargetInfo) ProtoReflect() protoreflect.Message {
-	mi := &file_app_router_command_command_proto_msgTypes[4]
+	mi := &file_app_router_command_command_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -377,7 +330,7 @@ func (x *PrincipleTargetInfo) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use PrincipleTargetInfo.ProtoReflect.Descriptor instead.
 func (*PrincipleTargetInfo) Descriptor() ([]byte, []int) {
-	return file_app_router_command_command_proto_rawDescGZIP(), []int{4}
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *PrincipleTargetInfo) GetTag() []string {
@@ -398,7 +351,7 @@ type OverrideInfo struct {
 func (x *OverrideInfo) Reset() {
 	*x = OverrideInfo{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_router_command_command_proto_msgTypes[5]
+		mi := &file_app_router_command_command_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -411,7 +364,7 @@ func (x *OverrideInfo) String() string {
 func (*OverrideInfo) ProtoMessage() {}
 
 func (x *OverrideInfo) ProtoReflect() protoreflect.Message {
-	mi := &file_app_router_command_command_proto_msgTypes[5]
+	mi := &file_app_router_command_command_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -424,7 +377,7 @@ func (x *OverrideInfo) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use OverrideInfo.ProtoReflect.Descriptor instead.
 func (*OverrideInfo) Descriptor() ([]byte, []int) {
-	return file_app_router_command_command_proto_rawDescGZIP(), []int{5}
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *OverrideInfo) GetTarget() string {
@@ -446,7 +399,7 @@ type BalancerMsg struct {
 func (x *BalancerMsg) Reset() {
 	*x = BalancerMsg{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_router_command_command_proto_msgTypes[6]
+		mi := &file_app_router_command_command_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -459,7 +412,7 @@ func (x *BalancerMsg) String() string {
 func (*BalancerMsg) ProtoMessage() {}
 
 func (x *BalancerMsg) ProtoReflect() protoreflect.Message {
-	mi := &file_app_router_command_command_proto_msgTypes[6]
+	mi := &file_app_router_command_command_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -472,7 +425,7 @@ func (x *BalancerMsg) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use BalancerMsg.ProtoReflect.Descriptor instead.
 func (*BalancerMsg) Descriptor() ([]byte, []int) {
-	return file_app_router_command_command_proto_rawDescGZIP(), []int{6}
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *BalancerMsg) GetOverride() *OverrideInfo {
@@ -500,7 +453,7 @@ type GetBalancerInfoRequest struct {
 func (x *GetBalancerInfoRequest) Reset() {
 	*x = GetBalancerInfoRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_router_command_command_proto_msgTypes[7]
+		mi := &file_app_router_command_command_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -513,7 +466,7 @@ func (x *GetBalancerInfoRequest) String() string {
 func (*GetBalancerInfoRequest) ProtoMessage() {}
 
 func (x *GetBalancerInfoRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_router_command_command_proto_msgTypes[7]
+	mi := &file_app_router_command_command_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -526,7 +479,7 @@ func (x *GetBalancerInfoRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetBalancerInfoRequest.ProtoReflect.Descriptor instead.
 func (*GetBalancerInfoRequest) Descriptor() ([]byte, []int) {
-	return file_app_router_command_command_proto_rawDescGZIP(), []int{7}
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *GetBalancerInfoRequest) GetTag() string {
@@ -547,7 +500,7 @@ type GetBalancerInfoResponse struct {
 func (x *GetBalancerInfoResponse) Reset() {
 	*x = GetBalancerInfoResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_router_command_command_proto_msgTypes[8]
+		mi := &file_app_router_command_command_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -560,7 +513,7 @@ func (x *GetBalancerInfoResponse) String() string {
 func (*GetBalancerInfoResponse) ProtoMessage() {}
 
 func (x *GetBalancerInfoResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_router_command_command_proto_msgTypes[8]
+	mi := &file_app_router_command_command_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -573,7 +526,7 @@ func (x *GetBalancerInfoResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetBalancerInfoResponse.ProtoReflect.Descriptor instead.
 func (*GetBalancerInfoResponse) Descriptor() ([]byte, []int) {
-	return file_app_router_command_command_proto_rawDescGZIP(), []int{8}
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *GetBalancerInfoResponse) GetBalancer() *BalancerMsg {
@@ -595,7 +548,7 @@ type OverrideBalancerTargetRequest struct {
 func (x *OverrideBalancerTargetRequest) Reset() {
 	*x = OverrideBalancerTargetRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_router_command_command_proto_msgTypes[9]
+		mi := &file_app_router_command_command_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -608,7 +561,7 @@ func (x *OverrideBalancerTargetRequest) String() string {
 func (*OverrideBalancerTargetRequest) ProtoMessage() {}
 
 func (x *OverrideBalancerTargetRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_router_command_command_proto_msgTypes[9]
+	mi := &file_app_router_command_command_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -621,7 +574,7 @@ func (x *OverrideBalancerTargetRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use OverrideBalancerTargetRequest.ProtoReflect.Descriptor instead.
 func (*OverrideBalancerTargetRequest) Descriptor() ([]byte, []int) {
-	return file_app_router_command_command_proto_rawDescGZIP(), []int{9}
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *OverrideBalancerTargetRequest) GetBalancerTag() string {
@@ -647,7 +600,7 @@ type OverrideBalancerTargetResponse struct {
 func (x *OverrideBalancerTargetResponse) Reset() {
 	*x = OverrideBalancerTargetResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_router_command_command_proto_msgTypes[10]
+		mi := &file_app_router_command_command_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -660,7 +613,7 @@ func (x *OverrideBalancerTargetResponse) String() string {
 func (*OverrideBalancerTargetResponse) ProtoMessage() {}
 
 func (x *OverrideBalancerTargetResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_router_command_command_proto_msgTypes[10]
+	mi := &file_app_router_command_command_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -673,7 +626,7 @@ func (x *OverrideBalancerTargetResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use OverrideBalancerTargetResponse.ProtoReflect.Descriptor instead.
 func (*OverrideBalancerTargetResponse) Descriptor() ([]byte, []int) {
-	return file_app_router_command_command_proto_rawDescGZIP(), []int{10}
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{9}
 }
 
 type Config struct {
@@ -685,7 +638,7 @@ type Config struct {
 func (x *Config) Reset() {
 	*x = Config{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_router_command_command_proto_msgTypes[11]
+		mi := &file_app_router_command_command_proto_msgTypes[10]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -698,7 +651,7 @@ func (x *Config) String() string {
 func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_router_command_command_proto_msgTypes[11]
+	mi := &file_app_router_command_command_proto_msgTypes[10]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -711,7 +664,7 @@ func (x *Config) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Config.ProtoReflect.Descriptor instead.
 func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_router_command_command_proto_rawDescGZIP(), []int{11}
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{10}
 }
 
 var File_app_router_command_command_proto protoreflect.FileDescriptor
@@ -773,87 +726,84 @@ var file_app_router_command_command_proto_rawDesc = []byte{
 	0x28, 0x09, 0x52, 0x0e, 0x46, 0x69, 0x65, 0x6c, 0x64, 0x53, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f,
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 }
 
 var (
@@ -868,38 +818,37 @@ func file_app_router_command_command_proto_rawDescGZIP() []byte {
 	return file_app_router_command_command_proto_rawDescData
 }
 
-var file_app_router_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 13)
+var file_app_router_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
 var file_app_router_command_command_proto_goTypes = []interface{}{
 	(*RoutingContext)(nil),                 // 0: v2ray.core.app.router.command.RoutingContext
 	(*SubscribeRoutingStatsRequest)(nil),   // 1: v2ray.core.app.router.command.SubscribeRoutingStatsRequest
 	(*TestRouteRequest)(nil),               // 2: v2ray.core.app.router.command.TestRouteRequest
-	(*GetBalancersRequest)(nil),            // 3: v2ray.core.app.router.command.GetBalancersRequest
-	(*PrincipleTargetInfo)(nil),            // 4: v2ray.core.app.router.command.PrincipleTargetInfo
-	(*OverrideInfo)(nil),                   // 5: v2ray.core.app.router.command.OverrideInfo
-	(*BalancerMsg)(nil),                    // 6: v2ray.core.app.router.command.BalancerMsg
-	(*GetBalancerInfoRequest)(nil),         // 7: v2ray.core.app.router.command.GetBalancerInfoRequest
-	(*GetBalancerInfoResponse)(nil),        // 8: v2ray.core.app.router.command.GetBalancerInfoResponse
-	(*OverrideBalancerTargetRequest)(nil),  // 9: v2ray.core.app.router.command.OverrideBalancerTargetRequest
-	(*OverrideBalancerTargetResponse)(nil), // 10: v2ray.core.app.router.command.OverrideBalancerTargetResponse
-	(*Config)(nil),                         // 11: v2ray.core.app.router.command.Config
-	nil,                                    // 12: v2ray.core.app.router.command.RoutingContext.AttributesEntry
-	(net.Network)(0),                       // 13: v2ray.core.common.net.Network
+	(*PrincipleTargetInfo)(nil),            // 3: v2ray.core.app.router.command.PrincipleTargetInfo
+	(*OverrideInfo)(nil),                   // 4: v2ray.core.app.router.command.OverrideInfo
+	(*BalancerMsg)(nil),                    // 5: v2ray.core.app.router.command.BalancerMsg
+	(*GetBalancerInfoRequest)(nil),         // 6: v2ray.core.app.router.command.GetBalancerInfoRequest
+	(*GetBalancerInfoResponse)(nil),        // 7: v2ray.core.app.router.command.GetBalancerInfoResponse
+	(*OverrideBalancerTargetRequest)(nil),  // 8: v2ray.core.app.router.command.OverrideBalancerTargetRequest
+	(*OverrideBalancerTargetResponse)(nil), // 9: v2ray.core.app.router.command.OverrideBalancerTargetResponse
+	(*Config)(nil),                         // 10: v2ray.core.app.router.command.Config
+	nil,                                    // 11: v2ray.core.app.router.command.RoutingContext.AttributesEntry
+	(net.Network)(0),                       // 12: v2ray.core.common.net.Network
 }
 var file_app_router_command_command_proto_depIdxs = []int32{
-	13, // 0: v2ray.core.app.router.command.RoutingContext.Network:type_name -> v2ray.core.common.net.Network
-	12, // 1: v2ray.core.app.router.command.RoutingContext.Attributes:type_name -> v2ray.core.app.router.command.RoutingContext.AttributesEntry
+	12, // 0: v2ray.core.app.router.command.RoutingContext.Network:type_name -> v2ray.core.common.net.Network
+	11, // 1: v2ray.core.app.router.command.RoutingContext.Attributes:type_name -> v2ray.core.app.router.command.RoutingContext.AttributesEntry
 	0,  // 2: v2ray.core.app.router.command.TestRouteRequest.RoutingContext:type_name -> v2ray.core.app.router.command.RoutingContext
-	5,  // 3: v2ray.core.app.router.command.BalancerMsg.override:type_name -> v2ray.core.app.router.command.OverrideInfo
-	4,  // 4: v2ray.core.app.router.command.BalancerMsg.principle_target:type_name -> v2ray.core.app.router.command.PrincipleTargetInfo
-	6,  // 5: v2ray.core.app.router.command.GetBalancerInfoResponse.balancer:type_name -> v2ray.core.app.router.command.BalancerMsg
+	4,  // 3: v2ray.core.app.router.command.BalancerMsg.override:type_name -> v2ray.core.app.router.command.OverrideInfo
+	3,  // 4: v2ray.core.app.router.command.BalancerMsg.principle_target:type_name -> v2ray.core.app.router.command.PrincipleTargetInfo
+	5,  // 5: v2ray.core.app.router.command.GetBalancerInfoResponse.balancer:type_name -> v2ray.core.app.router.command.BalancerMsg
 	1,  // 6: v2ray.core.app.router.command.RoutingService.SubscribeRoutingStats:input_type -> v2ray.core.app.router.command.SubscribeRoutingStatsRequest
 	2,  // 7: v2ray.core.app.router.command.RoutingService.TestRoute:input_type -> v2ray.core.app.router.command.TestRouteRequest
-	7,  // 8: v2ray.core.app.router.command.RoutingService.GetBalancerInfo:input_type -> v2ray.core.app.router.command.GetBalancerInfoRequest
-	9,  // 9: v2ray.core.app.router.command.RoutingService.OverrideBalancerTarget:input_type -> v2ray.core.app.router.command.OverrideBalancerTargetRequest
+	6,  // 8: v2ray.core.app.router.command.RoutingService.GetBalancerInfo:input_type -> v2ray.core.app.router.command.GetBalancerInfoRequest
+	8,  // 9: v2ray.core.app.router.command.RoutingService.OverrideBalancerTarget:input_type -> v2ray.core.app.router.command.OverrideBalancerTargetRequest
 	0,  // 10: v2ray.core.app.router.command.RoutingService.SubscribeRoutingStats:output_type -> v2ray.core.app.router.command.RoutingContext
 	0,  // 11: v2ray.core.app.router.command.RoutingService.TestRoute:output_type -> v2ray.core.app.router.command.RoutingContext
-	8,  // 12: v2ray.core.app.router.command.RoutingService.GetBalancerInfo:output_type -> v2ray.core.app.router.command.GetBalancerInfoResponse
-	10, // 13: v2ray.core.app.router.command.RoutingService.OverrideBalancerTarget:output_type -> v2ray.core.app.router.command.OverrideBalancerTargetResponse
+	7,  // 12: v2ray.core.app.router.command.RoutingService.GetBalancerInfo:output_type -> v2ray.core.app.router.command.GetBalancerInfoResponse
+	9,  // 13: v2ray.core.app.router.command.RoutingService.OverrideBalancerTarget:output_type -> v2ray.core.app.router.command.OverrideBalancerTargetResponse
 	10, // [10:14] is the sub-list for method output_type
 	6,  // [6:10] is the sub-list for method input_type
 	6,  // [6:6] is the sub-list for extension type_name
@@ -950,18 +899,6 @@ func file_app_router_command_command_proto_init() {
 			}
 		}
 		file_app_router_command_command_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GetBalancersRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_app_router_command_command_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*PrincipleTargetInfo); i {
 			case 0:
 				return &v.state
@@ -973,7 +910,7 @@ func file_app_router_command_command_proto_init() {
 				return nil
 			}
 		}
-		file_app_router_command_command_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+		file_app_router_command_command_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*OverrideInfo); i {
 			case 0:
 				return &v.state
@@ -985,7 +922,7 @@ func file_app_router_command_command_proto_init() {
 				return nil
 			}
 		}
-		file_app_router_command_command_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+		file_app_router_command_command_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*BalancerMsg); i {
 			case 0:
 				return &v.state
@@ -997,7 +934,7 @@ func file_app_router_command_command_proto_init() {
 				return nil
 			}
 		}
-		file_app_router_command_command_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+		file_app_router_command_command_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetBalancerInfoRequest); i {
 			case 0:
 				return &v.state
@@ -1009,7 +946,7 @@ func file_app_router_command_command_proto_init() {
 				return nil
 			}
 		}
-		file_app_router_command_command_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+		file_app_router_command_command_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetBalancerInfoResponse); i {
 			case 0:
 				return &v.state
@@ -1021,7 +958,7 @@ func file_app_router_command_command_proto_init() {
 				return nil
 			}
 		}
-		file_app_router_command_command_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+		file_app_router_command_command_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*OverrideBalancerTargetRequest); i {
 			case 0:
 				return &v.state
@@ -1033,7 +970,7 @@ func file_app_router_command_command_proto_init() {
 				return nil
 			}
 		}
-		file_app_router_command_command_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
+		file_app_router_command_command_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*OverrideBalancerTargetResponse); i {
 			case 0:
 				return &v.state
@@ -1045,7 +982,7 @@ func file_app_router_command_command_proto_init() {
 				return nil
 			}
 		}
-		file_app_router_command_command_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
+		file_app_router_command_command_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Config); i {
 			case 0:
 				return &v.state
@@ -1064,7 +1001,7 @@ func file_app_router_command_command_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_router_command_command_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   13,
+			NumMessages:   12,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
diff --git a/app/router/command/command.proto b/app/router/command/command.proto
index 9fb1a6096..5b646779c 100644
--- a/app/router/command/command.proto
+++ b/app/router/command/command.proto
@@ -60,10 +60,6 @@ message TestRouteRequest {
   bool PublishResult = 3;
 }
 
-message GetBalancersRequest {
-  repeated string balancerTags = 1;
-}
-
 message PrincipleTargetInfo {
   repeated string tag = 1;
 }
diff --git a/main/commands/all/api/balancer_check.go b/main/commands/all/api/balancer_check.go
deleted file mode 100644
index 9dd3d9855..000000000
--- a/main/commands/all/api/balancer_check.go
+++ /dev/null
@@ -1,47 +0,0 @@
-package api
-
-import (
-	routerService "github.com/v2fly/v2ray-core/v4/app/router/command"
-	"github.com/v2fly/v2ray-core/v4/main/commands/base"
-)
-
-var cmdBalancerCheck = &base.Command{
-	CustomFlags: true,
-	UsageLine:   "{{.Exec}} api bc [--server=127.0.0.1:8080] [balancer]...",
-	Short:       "balancer health check",
-	Long: `
-Perform instant health checks for specific balancers. If no 
-balancer tag specified, check all balancers.
-
-> Make sure you have "RoutingService" set in "config.api.services" 
-of server config.
-
-Arguments:
-
-	-s, -server <server:port>
-		The API server address. Default 127.0.0.1:8080
-
-	-t, -timeout <seconds>
-		Timeout seconds to call API. Default 3
-
-Example:
-
-    {{.Exec}} {{.LongName}} --server=127.0.0.1:8080 balancer1 balancer2
-`,
-	Run: executeBalancerCheck,
-}
-
-func executeBalancerCheck(cmd *base.Command, args []string) {
-	setSharedFlags(cmd)
-	cmd.Flag.Parse(args)
-
-	conn, ctx, close := dialAPIServer()
-	defer close()
-
-	client := routerService.NewRoutingServiceClient(conn)
-	r := &routerService.CheckBalancersRequest{BalancerTags: cmd.Flag.Args()}
-	_, err := client.CheckBalancers(ctx, r)
-	if err != nil {
-		base.Fatalf("failed to perform balancer health checks: %s", err)
-	}
-}
diff --git a/main/commands/all/api/balancer_info.go b/main/commands/all/api/balancer_info.go
index 3a18d3191..bb7d47f97 100644
--- a/main/commands/all/api/balancer_info.go
+++ b/main/commands/all/api/balancer_info.go
@@ -3,7 +3,6 @@ package api
 import (
 	"fmt"
 	"os"
-	"sort"
 	"strings"
 
 	routerService "github.com/v2fly/v2ray-core/v4/app/router/command"
@@ -49,60 +48,36 @@ func executeBalancerInfo(cmd *base.Command, args []string) {
 	defer close()
 
 	client := routerService.NewRoutingServiceClient(conn)
-	r := &routerService.GetBalancersRequest{BalancerTags: cmd.Flag.Args()}
-	resp, err := client.GetBalancers(ctx, r)
+	r := &routerService.GetBalancerInfoRequest{Tag: args[0]}
+	resp, err := client.GetBalancerInfo(ctx, r)
 	if err != nil {
 		base.Fatalf("failed to get health information: %s", err)
 	}
-	sort.Slice(resp.Balancers, func(i, j int) bool {
-		return resp.Balancers[i].Tag < resp.Balancers[j].Tag
-	})
+
 	if apiJSON {
 		showJSONResponse(resp)
 		return
 	}
-	for _, b := range resp.Balancers {
-		showBalancerInfo(b)
-	}
+
+	showBalancerInfo(resp.Balancer)
+
 }
 
 func showBalancerInfo(b *routerService.BalancerMsg) {
 	const tableIndent = 4
 	sb := new(strings.Builder)
-	// Balancer
-	sb.WriteString(fmt.Sprintf("Balancer: %s\n", b.Tag))
-	// Strategy
-	sb.WriteString("  - Strategy:\n")
-	for _, v := range b.StrategySettings {
-		sb.WriteString(fmt.Sprintf("    %s\n", v))
-	}
 	// Override
 	if b.Override != nil {
 		sb.WriteString("  - Selecting Override:\n")
-		until := fmt.Sprintf("until: %s", b.Override.Until)
-		writeRow(sb, tableIndent, 0, []string{until}, nil)
-		for i, s := range b.Override.Selects {
+		for i, s := range []string{b.Override.Target} {
 			writeRow(sb, tableIndent, i+1, []string{s}, nil)
 		}
 	}
-	b.Titles = append(b.Titles, "Tag")
-	formats := getColumnFormats(b.Titles)
 	// Selects
 	sb.WriteString("  - Selects:\n")
-	writeRow(sb, tableIndent, 0, b.Titles, formats)
-	for i, o := range b.Selects {
-		o.Values = append(o.Values, o.Tag)
-		writeRow(sb, tableIndent, i+1, o.Values, formats)
-	}
-	// Others
-	scnt := len(b.Selects)
-	if len(b.Others) > 0 {
-		sb.WriteString("  - Others:\n")
-		writeRow(sb, tableIndent, 0, b.Titles, formats)
-		for i, o := range b.Others {
-			o.Values = append(o.Values, o.Tag)
-			writeRow(sb, tableIndent, scnt+i+1, o.Values, formats)
-		}
+
+	for i, o := range b.PrincipleTarget.Tag {
+		writeRow(sb, tableIndent, i+1, []string{o}, nil)
 	}
 	os.Stdout.WriteString(sb.String())
 }
diff --git a/main/commands/all/api/balancer_override.go b/main/commands/all/api/balancer_override.go
index 0a4ac40ea..98cee5e38 100644
--- a/main/commands/all/api/balancer_override.go
+++ b/main/commands/all/api/balancer_override.go
@@ -1,37 +1,29 @@
 package api
 
 import (
-	"time"
-
 	routerService "github.com/v2fly/v2ray-core/v4/app/router/command"
 	"github.com/v2fly/v2ray-core/v4/main/commands/base"
 )
 
 var cmdBalancerOverride = &base.Command{
 	CustomFlags: true,
-	UsageLine:   "{{.Exec}} api bo [--server=127.0.0.1:8080] <-b balancer> selectors...",
+	UsageLine:   "{{.Exec}} api bo [--server=127.0.0.1:8080] <-b balancer> outboundTag",
 	Short:       "balancer override",
 	Long: `
-Override a balancer's selection in a duration of time.
+Override a balancer's selection.
 
 > Make sure you have "RoutingService" set in "config.api.services" 
 of server config.
 
 Once a balancer's selection is overridden:
 
-- The selectors of the balancer won't apply.
-- The strategy of the balancer stops selecting qualified nodes 
-  according to its settings, doing only the final pick.
+- The balancer's selection result will always be outboundTag
 
 Arguments:
 
 	-b, -balancer <tag>
 		Tag of the target balancer. Required.
 
-	-v, -validity <duration>
-		Time duration of the validity of override, e.g.: 60s, 60m, 
-		24h, 1m30s. Default 1h.
-
 	-r, -remove
 		Remove the override
 
@@ -43,7 +35,7 @@ Arguments:
 
 Example:
 
-    {{.Exec}} {{.LongName}} --server=127.0.0.1:8080 -b balancer selector1 selector2
+    {{.Exec}} {{.LongName}} --server=127.0.0.1:8080 -b balancer tag
     {{.Exec}} {{.LongName}} --server=127.0.0.1:8080 -b balancer -r
 `,
 	Run: executeBalancerOverride,
@@ -52,13 +44,10 @@ Example:
 func executeBalancerOverride(cmd *base.Command, args []string) {
 	var (
 		balancer string
-		validity time.Duration
 		remove   bool
 	)
 	cmd.Flag.StringVar(&balancer, "b", "", "")
 	cmd.Flag.StringVar(&balancer, "balancer", "", "")
-	cmd.Flag.DurationVar(&validity, "v", time.Hour, "")
-	cmd.Flag.DurationVar(&validity, "validity", time.Hour, "")
 	cmd.Flag.BoolVar(&remove, "r", false, "")
 	cmd.Flag.BoolVar(&remove, "remove", false, "")
 	setSharedFlags(cmd)
@@ -71,17 +60,17 @@ func executeBalancerOverride(cmd *base.Command, args []string) {
 	conn, ctx, close := dialAPIServer()
 	defer close()
 
-	v := int64(0)
-	if !remove {
-		v = int64(validity)
-	}
 	client := routerService.NewRoutingServiceClient(conn)
-	r := &routerService.OverrideSelectingRequest{
-		BalancerTag: balancer,
-		Selectors:   cmd.Flag.Args(),
-		Validity:    v,
+	target := ""
+	if !remove {
+		target = cmd.Flag.Args()[0]
 	}
-	_, err := client.OverrideSelecting(ctx, r)
+	r := &routerService.OverrideBalancerTargetRequest{
+		BalancerTag: balancer,
+		Target:      target,
+	}
+
+	_, err := client.OverrideBalancerTarget(ctx, r)
 	if err != nil {
 		base.Fatalf("failed to override balancer: %s", err)
 	}
diff --git a/main/commands/all/api/shared.go b/main/commands/all/api/shared.go
index a3215e6ed..019c76a61 100644
--- a/main/commands/all/api/shared.go
+++ b/main/commands/all/api/shared.go
@@ -2,8 +2,8 @@ package api
 
 import (
 	"context"
-	"encoding/json"
 	"fmt"
+	"google.golang.org/protobuf/encoding/protojson"
 	"os"
 	"strings"
 	"time"
@@ -81,15 +81,7 @@ func dialAPIServerWithContext(ctx context.Context) (conn *grpc.ClientConn) {
 }
 
 func protoToJSONString(m proto.Message, prefix, indent string) (string, error) {
-	b := new(strings.Builder)
-	e := json.NewEncoder(b)
-	e.SetIndent(prefix, indent)
-	e.SetEscapeHTML(false)
-	err := e.Encode(m)
-	if err != nil {
-		return "", err
-	}
-	return strings.TrimSpace(b.String()), nil
+	return strings.TrimSpace(protojson.MarshalOptions{Indent: indent}.Format(m)), nil
 }
 
 func showJSONResponse(m proto.Message) {