diff --git a/pkg/pdpb/pdpb.pb.go b/pkg/pdpb/pdpb.pb.go
index 6eda98061..ca0c89fee 100644
--- a/pkg/pdpb/pdpb.pb.go
+++ b/pkg/pdpb/pdpb.pb.go
@@ -74,7 +74,7 @@ func (x ErrorType) String() string {
 	return proto.EnumName(ErrorType_name, int32(x))
 }
 func (ErrorType) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{0}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{0}
 }
 
 type CheckPolicy int32
@@ -100,7 +100,7 @@ func (x CheckPolicy) String() string {
 	return proto.EnumName(CheckPolicy_name, int32(x))
 }
 func (CheckPolicy) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{1}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{1}
 }
 
 type OperatorStatus int32
@@ -132,7 +132,7 @@ func (x OperatorStatus) String() string {
 	return proto.EnumName(OperatorStatus_name, int32(x))
 }
 func (OperatorStatus) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{2}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{2}
 }
 
 type QueryKind int32
@@ -185,7 +185,7 @@ func (x QueryKind) String() string {
 	return proto.EnumName(QueryKind_name, int32(x))
 }
 func (QueryKind) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{3}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{3}
 }
 
 type WatchGlobalConfigRequest struct {
@@ -198,7 +198,7 @@ func (m *WatchGlobalConfigRequest) Reset()         { *m = WatchGlobalConfigReque
 func (m *WatchGlobalConfigRequest) String() string { return proto.CompactTextString(m) }
 func (*WatchGlobalConfigRequest) ProtoMessage()    {}
 func (*WatchGlobalConfigRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{0}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{0}
 }
 func (m *WatchGlobalConfigRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -238,7 +238,7 @@ func (m *WatchGlobalConfigResponse) Reset()         { *m = WatchGlobalConfigResp
 func (m *WatchGlobalConfigResponse) String() string { return proto.CompactTextString(m) }
 func (*WatchGlobalConfigResponse) ProtoMessage()    {}
 func (*WatchGlobalConfigResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{1}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{1}
 }
 func (m *WatchGlobalConfigResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -285,7 +285,7 @@ func (m *StoreGlobalConfigRequest) Reset()         { *m = StoreGlobalConfigReque
 func (m *StoreGlobalConfigRequest) String() string { return proto.CompactTextString(m) }
 func (*StoreGlobalConfigRequest) ProtoMessage()    {}
 func (*StoreGlobalConfigRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{2}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{2}
 }
 func (m *StoreGlobalConfigRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -332,7 +332,7 @@ func (m *StoreGlobalConfigResponse) Reset()         { *m = StoreGlobalConfigResp
 func (m *StoreGlobalConfigResponse) String() string { return proto.CompactTextString(m) }
 func (*StoreGlobalConfigResponse) ProtoMessage()    {}
 func (*StoreGlobalConfigResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{3}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{3}
 }
 func (m *StoreGlobalConfigResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -379,7 +379,7 @@ func (m *LoadGlobalConfigRequest) Reset()         { *m = LoadGlobalConfigRequest
 func (m *LoadGlobalConfigRequest) String() string { return proto.CompactTextString(m) }
 func (*LoadGlobalConfigRequest) ProtoMessage()    {}
 func (*LoadGlobalConfigRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{4}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{4}
 }
 func (m *LoadGlobalConfigRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -426,7 +426,7 @@ func (m *LoadGlobalConfigResponse) Reset()         { *m = LoadGlobalConfigRespon
 func (m *LoadGlobalConfigResponse) String() string { return proto.CompactTextString(m) }
 func (*LoadGlobalConfigResponse) ProtoMessage()    {}
 func (*LoadGlobalConfigResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{5}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{5}
 }
 func (m *LoadGlobalConfigResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -475,7 +475,7 @@ func (m *GlobalConfigItem) Reset()         { *m = GlobalConfigItem{} }
 func (m *GlobalConfigItem) String() string { return proto.CompactTextString(m) }
 func (*GlobalConfigItem) ProtoMessage()    {}
 func (*GlobalConfigItem) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{6}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{6}
 }
 func (m *GlobalConfigItem) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -539,7 +539,7 @@ func (m *RequestHeader) Reset()         { *m = RequestHeader{} }
 func (m *RequestHeader) String() string { return proto.CompactTextString(m) }
 func (*RequestHeader) ProtoMessage()    {}
 func (*RequestHeader) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{7}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{7}
 }
 func (m *RequestHeader) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -595,7 +595,7 @@ func (m *ResponseHeader) Reset()         { *m = ResponseHeader{} }
 func (m *ResponseHeader) String() string { return proto.CompactTextString(m) }
 func (*ResponseHeader) ProtoMessage()    {}
 func (*ResponseHeader) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{8}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{8}
 }
 func (m *ResponseHeader) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -650,7 +650,7 @@ func (m *Error) Reset()         { *m = Error{} }
 func (m *Error) String() string { return proto.CompactTextString(m) }
 func (*Error) ProtoMessage()    {}
 func (*Error) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{9}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{9}
 }
 func (m *Error) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -706,7 +706,7 @@ func (m *TsoRequest) Reset()         { *m = TsoRequest{} }
 func (m *TsoRequest) String() string { return proto.CompactTextString(m) }
 func (*TsoRequest) ProtoMessage()    {}
 func (*TsoRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{10}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{10}
 }
 func (m *TsoRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -771,7 +771,7 @@ func (m *Timestamp) Reset()         { *m = Timestamp{} }
 func (m *Timestamp) String() string { return proto.CompactTextString(m) }
 func (*Timestamp) ProtoMessage()    {}
 func (*Timestamp) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{11}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{11}
 }
 func (m *Timestamp) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -834,7 +834,7 @@ func (m *TsoResponse) Reset()         { *m = TsoResponse{} }
 func (m *TsoResponse) String() string { return proto.CompactTextString(m) }
 func (*TsoResponse) ProtoMessage()    {}
 func (*TsoResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{12}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{12}
 }
 func (m *TsoResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -897,7 +897,7 @@ func (m *BootstrapRequest) Reset()         { *m = BootstrapRequest{} }
 func (m *BootstrapRequest) String() string { return proto.CompactTextString(m) }
 func (*BootstrapRequest) ProtoMessage()    {}
 func (*BootstrapRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{13}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{13}
 }
 func (m *BootstrapRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -959,7 +959,7 @@ func (m *BootstrapResponse) Reset()         { *m = BootstrapResponse{} }
 func (m *BootstrapResponse) String() string { return proto.CompactTextString(m) }
 func (*BootstrapResponse) ProtoMessage()    {}
 func (*BootstrapResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{14}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{14}
 }
 func (m *BootstrapResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1013,7 +1013,7 @@ func (m *IsBootstrappedRequest) Reset()         { *m = IsBootstrappedRequest{} }
 func (m *IsBootstrappedRequest) String() string { return proto.CompactTextString(m) }
 func (*IsBootstrappedRequest) ProtoMessage()    {}
 func (*IsBootstrappedRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{15}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{15}
 }
 func (m *IsBootstrappedRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1061,7 +1061,7 @@ func (m *IsBootstrappedResponse) Reset()         { *m = IsBootstrappedResponse{}
 func (m *IsBootstrappedResponse) String() string { return proto.CompactTextString(m) }
 func (*IsBootstrappedResponse) ProtoMessage()    {}
 func (*IsBootstrappedResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{16}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{16}
 }
 func (m *IsBootstrappedResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1115,7 +1115,7 @@ func (m *AllocIDRequest) Reset()         { *m = AllocIDRequest{} }
 func (m *AllocIDRequest) String() string { return proto.CompactTextString(m) }
 func (*AllocIDRequest) ProtoMessage()    {}
 func (*AllocIDRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{17}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{17}
 }
 func (m *AllocIDRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1163,7 +1163,7 @@ func (m *AllocIDResponse) Reset()         { *m = AllocIDResponse{} }
 func (m *AllocIDResponse) String() string { return proto.CompactTextString(m) }
 func (*AllocIDResponse) ProtoMessage()    {}
 func (*AllocIDResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{18}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{18}
 }
 func (m *AllocIDResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1218,7 +1218,7 @@ func (m *GetStoreRequest) Reset()         { *m = GetStoreRequest{} }
 func (m *GetStoreRequest) String() string { return proto.CompactTextString(m) }
 func (*GetStoreRequest) ProtoMessage()    {}
 func (*GetStoreRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{19}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{19}
 }
 func (m *GetStoreRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1274,7 +1274,7 @@ func (m *GetStoreResponse) Reset()         { *m = GetStoreResponse{} }
 func (m *GetStoreResponse) String() string { return proto.CompactTextString(m) }
 func (*GetStoreResponse) ProtoMessage()    {}
 func (*GetStoreResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{20}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{20}
 }
 func (m *GetStoreResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1336,7 +1336,7 @@ func (m *PutStoreRequest) Reset()         { *m = PutStoreRequest{} }
 func (m *PutStoreRequest) String() string { return proto.CompactTextString(m) }
 func (*PutStoreRequest) ProtoMessage()    {}
 func (*PutStoreRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{21}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{21}
 }
 func (m *PutStoreRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1391,7 +1391,7 @@ func (m *PutStoreResponse) Reset()         { *m = PutStoreResponse{} }
 func (m *PutStoreResponse) String() string { return proto.CompactTextString(m) }
 func (*PutStoreResponse) ProtoMessage()    {}
 func (*PutStoreResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{22}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{22}
 }
 func (m *PutStoreResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1447,7 +1447,7 @@ func (m *GetAllStoresRequest) Reset()         { *m = GetAllStoresRequest{} }
 func (m *GetAllStoresRequest) String() string { return proto.CompactTextString(m) }
 func (*GetAllStoresRequest) ProtoMessage()    {}
 func (*GetAllStoresRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{23}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{23}
 }
 func (m *GetAllStoresRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1502,7 +1502,7 @@ func (m *GetAllStoresResponse) Reset()         { *m = GetAllStoresResponse{} }
 func (m *GetAllStoresResponse) String() string { return proto.CompactTextString(m) }
 func (*GetAllStoresResponse) ProtoMessage()    {}
 func (*GetAllStoresResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{24}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{24}
 }
 func (m *GetAllStoresResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1557,7 +1557,7 @@ func (m *GetRegionRequest) Reset()         { *m = GetRegionRequest{} }
 func (m *GetRegionRequest) String() string { return proto.CompactTextString(m) }
 func (*GetRegionRequest) ProtoMessage()    {}
 func (*GetRegionRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{25}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{25}
 }
 func (m *GetRegionRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1618,7 +1618,7 @@ func (m *GetRegionResponse) Reset()         { *m = GetRegionResponse{} }
 func (m *GetRegionResponse) String() string { return proto.CompactTextString(m) }
 func (*GetRegionResponse) ProtoMessage()    {}
 func (*GetRegionResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{26}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{26}
 }
 func (m *GetRegionResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1694,7 +1694,7 @@ func (m *GetRegionByIDRequest) Reset()         { *m = GetRegionByIDRequest{} }
 func (m *GetRegionByIDRequest) String() string { return proto.CompactTextString(m) }
 func (*GetRegionByIDRequest) ProtoMessage()    {}
 func (*GetRegionByIDRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{27}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{27}
 }
 func (m *GetRegionByIDRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1751,7 +1751,7 @@ func (m *ScanRegionsRequest) Reset()         { *m = ScanRegionsRequest{} }
 func (m *ScanRegionsRequest) String() string { return proto.CompactTextString(m) }
 func (*ScanRegionsRequest) ProtoMessage()    {}
 func (*ScanRegionsRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{28}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{28}
 }
 func (m *ScanRegionsRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1825,7 +1825,7 @@ func (m *Region) Reset()         { *m = Region{} }
 func (m *Region) String() string { return proto.CompactTextString(m) }
 func (*Region) ProtoMessage()    {}
 func (*Region) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{29}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{29}
 }
 func (m *Region) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1898,7 +1898,7 @@ func (m *ScanRegionsResponse) Reset()         { *m = ScanRegionsResponse{} }
 func (m *ScanRegionsResponse) String() string { return proto.CompactTextString(m) }
 func (*ScanRegionsResponse) ProtoMessage()    {}
 func (*ScanRegionsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{30}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{30}
 }
 func (m *ScanRegionsResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1966,7 +1966,7 @@ func (m *GetClusterConfigRequest) Reset()         { *m = GetClusterConfigRequest
 func (m *GetClusterConfigRequest) String() string { return proto.CompactTextString(m) }
 func (*GetClusterConfigRequest) ProtoMessage()    {}
 func (*GetClusterConfigRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{31}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{31}
 }
 func (m *GetClusterConfigRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2014,7 +2014,7 @@ func (m *GetClusterConfigResponse) Reset()         { *m = GetClusterConfigRespon
 func (m *GetClusterConfigResponse) String() string { return proto.CompactTextString(m) }
 func (*GetClusterConfigResponse) ProtoMessage()    {}
 func (*GetClusterConfigResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{32}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{32}
 }
 func (m *GetClusterConfigResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2069,7 +2069,7 @@ func (m *PutClusterConfigRequest) Reset()         { *m = PutClusterConfigRequest
 func (m *PutClusterConfigRequest) String() string { return proto.CompactTextString(m) }
 func (*PutClusterConfigRequest) ProtoMessage()    {}
 func (*PutClusterConfigRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{33}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{33}
 }
 func (m *PutClusterConfigRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2123,7 +2123,7 @@ func (m *PutClusterConfigResponse) Reset()         { *m = PutClusterConfigRespon
 func (m *PutClusterConfigResponse) String() string { return proto.CompactTextString(m) }
 func (*PutClusterConfigResponse) ProtoMessage()    {}
 func (*PutClusterConfigResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{34}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{34}
 }
 func (m *PutClusterConfigResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2180,7 +2180,7 @@ func (m *Member) Reset()         { *m = Member{} }
 func (m *Member) String() string { return proto.CompactTextString(m) }
 func (*Member) ProtoMessage()    {}
 func (*Member) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{35}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{35}
 }
 func (m *Member) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2283,7 +2283,7 @@ func (m *GetMembersRequest) Reset()         { *m = GetMembersRequest{} }
 func (m *GetMembersRequest) String() string { return proto.CompactTextString(m) }
 func (*GetMembersRequest) ProtoMessage()    {}
 func (*GetMembersRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{36}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{36}
 }
 func (m *GetMembersRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2334,7 +2334,7 @@ func (m *GetMembersResponse) Reset()         { *m = GetMembersResponse{} }
 func (m *GetMembersResponse) String() string { return proto.CompactTextString(m) }
 func (*GetMembersResponse) ProtoMessage()    {}
 func (*GetMembersResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{37}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{37}
 }
 func (m *GetMembersResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2410,7 +2410,7 @@ func (m *PeerStats) Reset()         { *m = PeerStats{} }
 func (m *PeerStats) String() string { return proto.CompactTextString(m) }
 func (*PeerStats) ProtoMessage()    {}
 func (*PeerStats) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{38}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{38}
 }
 func (m *PeerStats) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2492,7 +2492,7 @@ func (m *RegionHeartbeatRequest) Reset()         { *m = RegionHeartbeatRequest{}
 func (m *RegionHeartbeatRequest) String() string { return proto.CompactTextString(m) }
 func (*RegionHeartbeatRequest) ProtoMessage()    {}
 func (*RegionHeartbeatRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{39}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{39}
 }
 func (m *RegionHeartbeatRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2645,7 +2645,7 @@ func (m *ChangePeer) Reset()         { *m = ChangePeer{} }
 func (m *ChangePeer) String() string { return proto.CompactTextString(m) }
 func (*ChangePeer) ProtoMessage()    {}
 func (*ChangePeer) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{40}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{40}
 }
 func (m *ChangePeer) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2700,7 +2700,7 @@ func (m *ChangePeerV2) Reset()         { *m = ChangePeerV2{} }
 func (m *ChangePeerV2) String() string { return proto.CompactTextString(m) }
 func (*ChangePeerV2) ProtoMessage()    {}
 func (*ChangePeerV2) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{41}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{41}
 }
 func (m *ChangePeerV2) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2748,7 +2748,7 @@ func (m *TransferLeader) Reset()         { *m = TransferLeader{} }
 func (m *TransferLeader) String() string { return proto.CompactTextString(m) }
 func (*TransferLeader) ProtoMessage()    {}
 func (*TransferLeader) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{42}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{42}
 }
 func (m *TransferLeader) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2802,7 +2802,7 @@ func (m *Merge) Reset()         { *m = Merge{} }
 func (m *Merge) String() string { return proto.CompactTextString(m) }
 func (*Merge) ProtoMessage()    {}
 func (*Merge) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{43}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{43}
 }
 func (m *Merge) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2850,7 +2850,7 @@ func (m *SplitRegion) Reset()         { *m = SplitRegion{} }
 func (m *SplitRegion) String() string { return proto.CompactTextString(m) }
 func (*SplitRegion) ProtoMessage()    {}
 func (*SplitRegion) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{44}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{44}
 }
 func (m *SplitRegion) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2923,7 +2923,9 @@ type RegionHeartbeatResponse struct {
 	// Multiple change peer operations atomically.
 	// Note: PD can use both ChangePeer and ChangePeerV2 at the same time
 	//       (not in the same RegionHeartbeatResponse).
-	//       Now, PD use ChangePeerV2 only for replacing peers.
+	//       Now, PD use ChangePeerV2 in following scenarios:
+	//       1. replacing peers
+	//       2. demoting voter directly
 	ChangePeerV2         *ChangePeerV2 `protobuf:"bytes,9,opt,name=change_peer_v2,json=changePeerV2" json:"change_peer_v2,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}      `json:"-"`
 	XXX_unrecognized     []byte        `json:"-"`
@@ -2934,7 +2936,7 @@ func (m *RegionHeartbeatResponse) Reset()         { *m = RegionHeartbeatResponse
 func (m *RegionHeartbeatResponse) String() string { return proto.CompactTextString(m) }
 func (*RegionHeartbeatResponse) ProtoMessage()    {}
 func (*RegionHeartbeatResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{45}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{45}
 }
 func (m *RegionHeartbeatResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3038,7 +3040,7 @@ func (m *AskSplitRequest) Reset()         { *m = AskSplitRequest{} }
 func (m *AskSplitRequest) String() string { return proto.CompactTextString(m) }
 func (*AskSplitRequest) ProtoMessage()    {}
 func (*AskSplitRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{46}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{46}
 }
 func (m *AskSplitRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3098,7 +3100,7 @@ func (m *AskSplitResponse) Reset()         { *m = AskSplitResponse{} }
 func (m *AskSplitResponse) String() string { return proto.CompactTextString(m) }
 func (*AskSplitResponse) ProtoMessage()    {}
 func (*AskSplitResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{47}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{47}
 }
 func (m *AskSplitResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3161,7 +3163,7 @@ func (m *ReportSplitRequest) Reset()         { *m = ReportSplitRequest{} }
 func (m *ReportSplitRequest) String() string { return proto.CompactTextString(m) }
 func (*ReportSplitRequest) ProtoMessage()    {}
 func (*ReportSplitRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{48}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{48}
 }
 func (m *ReportSplitRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3222,7 +3224,7 @@ func (m *ReportSplitResponse) Reset()         { *m = ReportSplitResponse{} }
 func (m *ReportSplitResponse) String() string { return proto.CompactTextString(m) }
 func (*ReportSplitResponse) ProtoMessage()    {}
 func (*ReportSplitResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{49}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{49}
 }
 func (m *ReportSplitResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3271,7 +3273,7 @@ func (m *AskBatchSplitRequest) Reset()         { *m = AskBatchSplitRequest{} }
 func (m *AskBatchSplitRequest) String() string { return proto.CompactTextString(m) }
 func (*AskBatchSplitRequest) ProtoMessage()    {}
 func (*AskBatchSplitRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{50}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{50}
 }
 func (m *AskBatchSplitRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3333,7 +3335,7 @@ func (m *SplitID) Reset()         { *m = SplitID{} }
 func (m *SplitID) String() string { return proto.CompactTextString(m) }
 func (*SplitID) ProtoMessage()    {}
 func (*SplitID) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{51}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{51}
 }
 func (m *SplitID) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3388,7 +3390,7 @@ func (m *AskBatchSplitResponse) Reset()         { *m = AskBatchSplitResponse{} }
 func (m *AskBatchSplitResponse) String() string { return proto.CompactTextString(m) }
 func (*AskBatchSplitResponse) ProtoMessage()    {}
 func (*AskBatchSplitResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{52}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{52}
 }
 func (m *AskBatchSplitResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3443,7 +3445,7 @@ func (m *ReportBatchSplitRequest) Reset()         { *m = ReportBatchSplitRequest
 func (m *ReportBatchSplitRequest) String() string { return proto.CompactTextString(m) }
 func (*ReportBatchSplitRequest) ProtoMessage()    {}
 func (*ReportBatchSplitRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{53}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{53}
 }
 func (m *ReportBatchSplitRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3497,7 +3499,7 @@ func (m *ReportBatchSplitResponse) Reset()         { *m = ReportBatchSplitRespon
 func (m *ReportBatchSplitResponse) String() string { return proto.CompactTextString(m) }
 func (*ReportBatchSplitResponse) ProtoMessage()    {}
 func (*ReportBatchSplitResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{54}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{54}
 }
 func (m *ReportBatchSplitResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3547,7 +3549,7 @@ func (m *TimeInterval) Reset()         { *m = TimeInterval{} }
 func (m *TimeInterval) String() string { return proto.CompactTextString(m) }
 func (*TimeInterval) ProtoMessage()    {}
 func (*TimeInterval) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{55}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{55}
 }
 func (m *TimeInterval) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3602,7 +3604,7 @@ func (m *RecordPair) Reset()         { *m = RecordPair{} }
 func (m *RecordPair) String() string { return proto.CompactTextString(m) }
 func (*RecordPair) ProtoMessage()    {}
 func (*RecordPair) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{56}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{56}
 }
 func (m *RecordPair) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3659,7 +3661,7 @@ func (m *PeerStat) Reset()         { *m = PeerStat{} }
 func (m *PeerStat) String() string { return proto.CompactTextString(m) }
 func (*PeerStat) ProtoMessage()    {}
 func (*PeerStat) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{57}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{57}
 }
 func (m *PeerStat) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3771,7 +3773,7 @@ func (m *StoreStats) Reset()         { *m = StoreStats{} }
 func (m *StoreStats) String() string { return proto.CompactTextString(m) }
 func (*StoreStats) ProtoMessage()    {}
 func (*StoreStats) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{58}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{58}
 }
 func (m *StoreStats) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -3973,7 +3975,7 @@ func (m *PeerReport) Reset()         { *m = PeerReport{} }
 func (m *PeerReport) String() string { return proto.CompactTextString(m) }
 func (*PeerReport) ProtoMessage()    {}
 func (*PeerReport) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{59}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{59}
 }
 func (m *PeerReport) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4027,7 +4029,7 @@ func (m *StoreReport) Reset()         { *m = StoreReport{} }
 func (m *StoreReport) String() string { return proto.CompactTextString(m) }
 func (*StoreReport) ProtoMessage()    {}
 func (*StoreReport) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{60}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{60}
 }
 func (m *StoreReport) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4077,7 +4079,7 @@ func (m *StoreHeartbeatRequest) Reset()         { *m = StoreHeartbeatRequest{} }
 func (m *StoreHeartbeatRequest) String() string { return proto.CompactTextString(m) }
 func (*StoreHeartbeatRequest) ProtoMessage()    {}
 func (*StoreHeartbeatRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{61}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{61}
 }
 func (m *StoreHeartbeatRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4140,7 +4142,7 @@ func (m *RecoveryPlan) Reset()         { *m = RecoveryPlan{} }
 func (m *RecoveryPlan) String() string { return proto.CompactTextString(m) }
 func (*RecoveryPlan) ProtoMessage()    {}
 func (*RecoveryPlan) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{62}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{62}
 }
 func (m *RecoveryPlan) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4205,7 +4207,7 @@ func (m *StoreHeartbeatResponse) Reset()         { *m = StoreHeartbeatResponse{}
 func (m *StoreHeartbeatResponse) String() string { return proto.CompactTextString(m) }
 func (*StoreHeartbeatResponse) ProtoMessage()    {}
 func (*StoreHeartbeatResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{63}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{63}
 }
 func (m *StoreHeartbeatResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4291,7 +4293,7 @@ func (m *ScatterRegionRequest) Reset()         { *m = ScatterRegionRequest{} }
 func (m *ScatterRegionRequest) String() string { return proto.CompactTextString(m) }
 func (*ScatterRegionRequest) ProtoMessage()    {}
 func (*ScatterRegionRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{64}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{64}
 }
 func (m *ScatterRegionRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4382,7 +4384,7 @@ func (m *ScatterRegionResponse) Reset()         { *m = ScatterRegionResponse{} }
 func (m *ScatterRegionResponse) String() string { return proto.CompactTextString(m) }
 func (*ScatterRegionResponse) ProtoMessage()    {}
 func (*ScatterRegionResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{65}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{65}
 }
 func (m *ScatterRegionResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4436,7 +4438,7 @@ func (m *GetGCSafePointRequest) Reset()         { *m = GetGCSafePointRequest{} }
 func (m *GetGCSafePointRequest) String() string { return proto.CompactTextString(m) }
 func (*GetGCSafePointRequest) ProtoMessage()    {}
 func (*GetGCSafePointRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{66}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{66}
 }
 func (m *GetGCSafePointRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4484,7 +4486,7 @@ func (m *GetGCSafePointResponse) Reset()         { *m = GetGCSafePointResponse{}
 func (m *GetGCSafePointResponse) String() string { return proto.CompactTextString(m) }
 func (*GetGCSafePointResponse) ProtoMessage()    {}
 func (*GetGCSafePointResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{67}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{67}
 }
 func (m *GetGCSafePointResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4539,7 +4541,7 @@ func (m *UpdateGCSafePointRequest) Reset()         { *m = UpdateGCSafePointReque
 func (m *UpdateGCSafePointRequest) String() string { return proto.CompactTextString(m) }
 func (*UpdateGCSafePointRequest) ProtoMessage()    {}
 func (*UpdateGCSafePointRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{68}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{68}
 }
 func (m *UpdateGCSafePointRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4594,7 +4596,7 @@ func (m *UpdateGCSafePointResponse) Reset()         { *m = UpdateGCSafePointResp
 func (m *UpdateGCSafePointResponse) String() string { return proto.CompactTextString(m) }
 func (*UpdateGCSafePointResponse) ProtoMessage()    {}
 func (*UpdateGCSafePointResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{69}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{69}
 }
 func (m *UpdateGCSafePointResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4651,7 +4653,7 @@ func (m *UpdateServiceGCSafePointRequest) Reset()         { *m = UpdateServiceGC
 func (m *UpdateServiceGCSafePointRequest) String() string { return proto.CompactTextString(m) }
 func (*UpdateServiceGCSafePointRequest) ProtoMessage()    {}
 func (*UpdateServiceGCSafePointRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{70}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{70}
 }
 func (m *UpdateServiceGCSafePointRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4722,7 +4724,7 @@ func (m *UpdateServiceGCSafePointResponse) Reset()         { *m = UpdateServiceG
 func (m *UpdateServiceGCSafePointResponse) String() string { return proto.CompactTextString(m) }
 func (*UpdateServiceGCSafePointResponse) ProtoMessage()    {}
 func (*UpdateServiceGCSafePointResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{71}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{71}
 }
 func (m *UpdateServiceGCSafePointResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4795,7 +4797,7 @@ func (m *RegionStat) Reset()         { *m = RegionStat{} }
 func (m *RegionStat) String() string { return proto.CompactTextString(m) }
 func (*RegionStat) ProtoMessage()    {}
 func (*RegionStat) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{72}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{72}
 }
 func (m *RegionStat) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4867,7 +4869,7 @@ func (m *SyncRegionRequest) Reset()         { *m = SyncRegionRequest{} }
 func (m *SyncRegionRequest) String() string { return proto.CompactTextString(m) }
 func (*SyncRegionRequest) ProtoMessage()    {}
 func (*SyncRegionRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{73}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{73}
 }
 func (m *SyncRegionRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -4934,7 +4936,7 @@ func (m *SyncRegionResponse) Reset()         { *m = SyncRegionResponse{} }
 func (m *SyncRegionResponse) String() string { return proto.CompactTextString(m) }
 func (*SyncRegionResponse) ProtoMessage()    {}
 func (*SyncRegionResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{74}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{74}
 }
 func (m *SyncRegionResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5010,7 +5012,7 @@ func (m *GetOperatorRequest) Reset()         { *m = GetOperatorRequest{} }
 func (m *GetOperatorRequest) String() string { return proto.CompactTextString(m) }
 func (*GetOperatorRequest) ProtoMessage()    {}
 func (*GetOperatorRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{75}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{75}
 }
 func (m *GetOperatorRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5068,7 +5070,7 @@ func (m *GetOperatorResponse) Reset()         { *m = GetOperatorResponse{} }
 func (m *GetOperatorResponse) String() string { return proto.CompactTextString(m) }
 func (*GetOperatorResponse) ProtoMessage()    {}
 func (*GetOperatorResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{76}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{76}
 }
 func (m *GetOperatorResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5146,7 +5148,7 @@ func (m *SyncMaxTSRequest) Reset()         { *m = SyncMaxTSRequest{} }
 func (m *SyncMaxTSRequest) String() string { return proto.CompactTextString(m) }
 func (*SyncMaxTSRequest) ProtoMessage()    {}
 func (*SyncMaxTSRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{77}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{77}
 }
 func (m *SyncMaxTSRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5209,7 +5211,7 @@ func (m *SyncMaxTSResponse) Reset()         { *m = SyncMaxTSResponse{} }
 func (m *SyncMaxTSResponse) String() string { return proto.CompactTextString(m) }
 func (*SyncMaxTSResponse) ProtoMessage()    {}
 func (*SyncMaxTSResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{78}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{78}
 }
 func (m *SyncMaxTSResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5272,7 +5274,7 @@ func (m *SplitRegionsRequest) Reset()         { *m = SplitRegionsRequest{} }
 func (m *SplitRegionsRequest) String() string { return proto.CompactTextString(m) }
 func (*SplitRegionsRequest) ProtoMessage()    {}
 func (*SplitRegionsRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{79}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{79}
 }
 func (m *SplitRegionsRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5335,7 +5337,7 @@ func (m *SplitRegionsResponse) Reset()         { *m = SplitRegionsResponse{} }
 func (m *SplitRegionsResponse) String() string { return proto.CompactTextString(m) }
 func (*SplitRegionsResponse) ProtoMessage()    {}
 func (*SplitRegionsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{80}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{80}
 }
 func (m *SplitRegionsResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5399,7 +5401,7 @@ func (m *SplitAndScatterRegionsRequest) Reset()         { *m = SplitAndScatterRe
 func (m *SplitAndScatterRegionsRequest) String() string { return proto.CompactTextString(m) }
 func (*SplitAndScatterRegionsRequest) ProtoMessage()    {}
 func (*SplitAndScatterRegionsRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{81}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{81}
 }
 func (m *SplitAndScatterRegionsRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5470,7 +5472,7 @@ func (m *SplitAndScatterRegionsResponse) Reset()         { *m = SplitAndScatterR
 func (m *SplitAndScatterRegionsResponse) String() string { return proto.CompactTextString(m) }
 func (*SplitAndScatterRegionsResponse) ProtoMessage()    {}
 func (*SplitAndScatterRegionsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{82}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{82}
 }
 func (m *SplitAndScatterRegionsResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5539,7 +5541,7 @@ func (m *GetDCLocationInfoRequest) Reset()         { *m = GetDCLocationInfoReque
 func (m *GetDCLocationInfoRequest) String() string { return proto.CompactTextString(m) }
 func (*GetDCLocationInfoRequest) ProtoMessage()    {}
 func (*GetDCLocationInfoRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{83}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{83}
 }
 func (m *GetDCLocationInfoRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5598,7 +5600,7 @@ func (m *GetDCLocationInfoResponse) Reset()         { *m = GetDCLocationInfoResp
 func (m *GetDCLocationInfoResponse) String() string { return proto.CompactTextString(m) }
 func (*GetDCLocationInfoResponse) ProtoMessage()    {}
 func (*GetDCLocationInfoResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{84}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{84}
 }
 func (m *GetDCLocationInfoResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -5669,7 +5671,7 @@ func (m *QueryStats) Reset()         { *m = QueryStats{} }
 func (m *QueryStats) String() string { return proto.CompactTextString(m) }
 func (*QueryStats) ProtoMessage()    {}
 func (*QueryStats) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pdpb_31cc55a09d844ce1, []int{85}
+	return fileDescriptor_pdpb_ad3a9ea6dfbe707a, []int{85}
 }
 func (m *QueryStats) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -25293,9 +25295,9 @@ var (
 	ErrIntOverflowPdpb   = fmt.Errorf("proto: integer overflow")
 )
 
-func init() { proto.RegisterFile("pdpb.proto", fileDescriptor_pdpb_31cc55a09d844ce1) }
+func init() { proto.RegisterFile("pdpb.proto", fileDescriptor_pdpb_ad3a9ea6dfbe707a) }
 
-var fileDescriptor_pdpb_31cc55a09d844ce1 = []byte{
+var fileDescriptor_pdpb_ad3a9ea6dfbe707a = []byte{
 	// 4460 bytes of a gzipped FileDescriptorProto
 	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xcc, 0x3b, 0x4d, 0x6f, 0x23, 0x47,
 	0x76, 0x6a, 0x8a, 0xa4, 0xc8, 0x47, 0x8a, 0x6a, 0x95, 0xbe, 0x28, 0x8e, 0xe7, 0x63, 0xdb, 0x63,
diff --git a/proto/pdpb.proto b/proto/pdpb.proto
index 2937eecf5..eab45dcd9 100644
--- a/proto/pdpb.proto
+++ b/proto/pdpb.proto
@@ -444,7 +444,9 @@ message RegionHeartbeatResponse {
     // Multiple change peer operations atomically.
     // Note: PD can use both ChangePeer and ChangePeerV2 at the same time
     //       (not in the same RegionHeartbeatResponse).
-    //       Now, PD use ChangePeerV2 only for replacing peers.
+    //       Now, PD use ChangePeerV2 in following scenarios:
+    //       1. replacing peers
+    //       2. demoting voter directly
     ChangePeerV2 change_peer_v2 = 9;
 }