diff --git a/pkg/configpb/configpb.pb.gw.go b/pkg/configpb/configpb.pb.gw.go
index c0385b0e4..9b4675b32 100644
--- a/pkg/configpb/configpb.pb.gw.go
+++ b/pkg/configpb/configpb.pb.gw.go
@@ -20,6 +20,7 @@ import (
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/status"
 )
 
@@ -30,6 +31,7 @@ var _ status.Status
 var _ = runtime.String
 var _ = utilities.NewDoubleArray
 var _ = descriptor.ForMessage
+var _ = metadata.Join
 
 var (
 	filter_Config_Get_0 = &utilities.DoubleArray{Encoding: map[string]int{}, Base: []int(nil), Check: []int(nil)}
@@ -55,7 +57,10 @@ func local_request_Config_Get_0(ctx context.Context, marshaler runtime.Marshaler
 	var protoReq GetRequest
 	var metadata runtime.ServerMetadata
 
-	if err := runtime.PopulateQueryParameters(&protoReq, req.URL.Query(), filter_Config_Get_0); err != nil {
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_Config_Get_0); err != nil {
 		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
 	}
 
@@ -122,7 +127,10 @@ func local_request_Config_Delete_0(ctx context.Context, marshaler runtime.Marsha
 	var protoReq DeleteRequest
 	var metadata runtime.ServerMetadata
 
-	if err := runtime.PopulateQueryParameters(&protoReq, req.URL.Query(), filter_Config_Delete_0); err != nil {
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_Config_Delete_0); err != nil {
 		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
 	}
 
@@ -134,11 +142,14 @@ func local_request_Config_Delete_0(ctx context.Context, marshaler runtime.Marsha
 // RegisterConfigHandlerServer registers the http handlers for service Config to "mux".
 // UnaryRPC     :call ConfigServer directly.
 // StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
+// Note that using this registration option will cause many gRPC library features to stop working. Consider using RegisterConfigHandlerFromEndpoint instead.
 func RegisterConfigHandlerServer(ctx context.Context, mux *runtime.ServeMux, server ConfigServer) error {
 
 	mux.Handle("GET", pattern_Config_Get_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
 		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
 		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req)
 		if err != nil {
@@ -146,6 +157,7 @@ func RegisterConfigHandlerServer(ctx context.Context, mux *runtime.ServeMux, ser
 			return
 		}
 		resp, md, err := local_request_Config_Get_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
 		ctx = runtime.NewServerMetadataContext(ctx, md)
 		if err != nil {
 			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
@@ -159,6 +171,8 @@ func RegisterConfigHandlerServer(ctx context.Context, mux *runtime.ServeMux, ser
 	mux.Handle("POST", pattern_Config_Update_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
 		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
 		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req)
 		if err != nil {
@@ -166,6 +180,7 @@ func RegisterConfigHandlerServer(ctx context.Context, mux *runtime.ServeMux, ser
 			return
 		}
 		resp, md, err := local_request_Config_Update_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
 		ctx = runtime.NewServerMetadataContext(ctx, md)
 		if err != nil {
 			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
@@ -179,6 +194,8 @@ func RegisterConfigHandlerServer(ctx context.Context, mux *runtime.ServeMux, ser
 	mux.Handle("DELETE", pattern_Config_Delete_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
 		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
 		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req)
 		if err != nil {
@@ -186,6 +203,7 @@ func RegisterConfigHandlerServer(ctx context.Context, mux *runtime.ServeMux, ser
 			return
 		}
 		resp, md, err := local_request_Config_Delete_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
 		ctx = runtime.NewServerMetadataContext(ctx, md)
 		if err != nil {
 			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
diff --git a/pkg/raft_serverpb/raft_serverpb.pb.go b/pkg/raft_serverpb/raft_serverpb.pb.go
index b6baf28d9..6f11236cf 100644
--- a/pkg/raft_serverpb/raft_serverpb.pb.go
+++ b/pkg/raft_serverpb/raft_serverpb.pb.go
@@ -86,6 +86,7 @@ const (
 	ExtraMessageType_MsgGcPeerRequest  ExtraMessageType = 11
 	ExtraMessageType_MsgGcPeerResponse ExtraMessageType = 12
 	ExtraMessageType_MsgFlushMemtable  ExtraMessageType = 13
+	ExtraMessageType_MsgRefreshBuckets ExtraMessageType = 14
 )
 
 var ExtraMessageType_name = map[int32]string{
@@ -103,6 +104,7 @@ var ExtraMessageType_name = map[int32]string{
 	11: "MsgGcPeerRequest",
 	12: "MsgGcPeerResponse",
 	13: "MsgFlushMemtable",
+	14: "MsgRefreshBuckets",
 }
 
 var ExtraMessageType_value = map[string]int32{
@@ -120,6 +122,7 @@ var ExtraMessageType_value = map[string]int32{
 	"MsgGcPeerRequest":                    11,
 	"MsgGcPeerResponse":                   12,
 	"MsgFlushMemtable":                    13,
+	"MsgRefreshBuckets":                   14,
 }
 
 func (x ExtraMessageType) String() string {
@@ -1959,6 +1962,53 @@ func (m *FlushMemtable) GetRegionId() uint64 {
 	return 0
 }
 
+type RefreshBuckets struct {
+	Version              uint64   `protobuf:"varint,1,opt,name=version,proto3" json:"version,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *RefreshBuckets) Reset()         { *m = RefreshBuckets{} }
+func (m *RefreshBuckets) String() string { return proto.CompactTextString(m) }
+func (*RefreshBuckets) ProtoMessage()    {}
+func (*RefreshBuckets) Descriptor() ([]byte, []int) {
+	return fileDescriptor_130ebc2f2c37a342, []int{26}
+}
+func (m *RefreshBuckets) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *RefreshBuckets) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_RefreshBuckets.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *RefreshBuckets) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_RefreshBuckets.Merge(m, src)
+}
+func (m *RefreshBuckets) XXX_Size() int {
+	return m.Size()
+}
+func (m *RefreshBuckets) XXX_DiscardUnknown() {
+	xxx_messageInfo_RefreshBuckets.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_RefreshBuckets proto.InternalMessageInfo
+
+func (m *RefreshBuckets) GetVersion() uint64 {
+	if m != nil {
+		return m.Version
+	}
+	return 0
+}
+
 type CheckGcPeer struct {
 	// The region ID who triggers the check and wait for report. It should be
 	// the ID of RaftMessage.from.
@@ -1978,7 +2028,7 @@ func (m *CheckGcPeer) Reset()         { *m = CheckGcPeer{} }
 func (m *CheckGcPeer) String() string { return proto.CompactTextString(m) }
 func (*CheckGcPeer) ProtoMessage()    {}
 func (*CheckGcPeer) Descriptor() ([]byte, []int) {
-	return fileDescriptor_130ebc2f2c37a342, []int{26}
+	return fileDescriptor_130ebc2f2c37a342, []int{27}
 }
 func (m *CheckGcPeer) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2049,17 +2099,19 @@ type ExtraMessage struct {
 	CheckGcPeer   *CheckGcPeer   `protobuf:"bytes,6,opt,name=check_gc_peer,json=checkGcPeer,proto3" json:"check_gc_peer,omitempty"`
 	FlushMemtable *FlushMemtable `protobuf:"bytes,7,opt,name=flush_memtable,json=flushMemtable,proto3" json:"flush_memtable,omitempty"`
 	// Used by `MsgAvailabilityRequest` and `MsgAvailabilityResponse` in v2.
-	AvailabilityContext  *AvailabilityContext `protobuf:"bytes,8,opt,name=availability_context,json=availabilityContext,proto3" json:"availability_context,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}             `json:"-"`
-	XXX_unrecognized     []byte               `json:"-"`
-	XXX_sizecache        int32                `json:"-"`
+	AvailabilityContext *AvailabilityContext `protobuf:"bytes,8,opt,name=availability_context,json=availabilityContext,proto3" json:"availability_context,omitempty"`
+	// notice the peer to refresh buckets version
+	RefreshBuckets       *RefreshBuckets `protobuf:"bytes,9,opt,name=refresh_buckets,json=refreshBuckets,proto3" json:"refresh_buckets,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}        `json:"-"`
+	XXX_unrecognized     []byte          `json:"-"`
+	XXX_sizecache        int32           `json:"-"`
 }
 
 func (m *ExtraMessage) Reset()         { *m = ExtraMessage{} }
 func (m *ExtraMessage) String() string { return proto.CompactTextString(m) }
 func (*ExtraMessage) ProtoMessage()    {}
 func (*ExtraMessage) Descriptor() ([]byte, []int) {
-	return fileDescriptor_130ebc2f2c37a342, []int{27}
+	return fileDescriptor_130ebc2f2c37a342, []int{28}
 }
 func (m *ExtraMessage) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -2144,6 +2196,13 @@ func (m *ExtraMessage) GetAvailabilityContext() *AvailabilityContext {
 	return nil
 }
 
+func (m *ExtraMessage) GetRefreshBuckets() *RefreshBuckets {
+	if m != nil {
+		return m.RefreshBuckets
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterEnum("raft_serverpb.PeerState", PeerState_name, PeerState_value)
 	proto.RegisterEnum("raft_serverpb.ExtraMessageType", ExtraMessageType_name, ExtraMessageType_value)
@@ -2173,6 +2232,7 @@ func init() {
 	proto.RegisterType((*RegionSequenceNumberRelation)(nil), "raft_serverpb.RegionSequenceNumberRelation")
 	proto.RegisterType((*AvailabilityContext)(nil), "raft_serverpb.AvailabilityContext")
 	proto.RegisterType((*FlushMemtable)(nil), "raft_serverpb.FlushMemtable")
+	proto.RegisterType((*RefreshBuckets)(nil), "raft_serverpb.RefreshBuckets")
 	proto.RegisterType((*CheckGcPeer)(nil), "raft_serverpb.CheckGcPeer")
 	proto.RegisterType((*ExtraMessage)(nil), "raft_serverpb.ExtraMessage")
 }
@@ -2180,147 +2240,150 @@ func init() {
 func init() { proto.RegisterFile("raft_serverpb.proto", fileDescriptor_130ebc2f2c37a342) }
 
 var fileDescriptor_130ebc2f2c37a342 = []byte{
-	// 2231 bytes of a gzipped FileDescriptorProto
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+	0xf0, 0xf6, 0x5f, 0x7f, 0x53, 0xb7, 0xfe, 0xf8, 0xf6, 0x9a, 0xf5, 0x97, 0xb7, 0xd7, 0xac, 0xbf,
+	0xbd, 0xbd, 0x66, 0x7d, 0xfb, 0xf7, 0x6b, 0x6b, 0xd0, 0x8d, 0xd9, 0x68, 0x4f, 0xf8, 0x93, 0xd9,
+	0xde, 0x64, 0xa6, 0x7e, 0xc9, 0x0e, 0xaa, 0xea, 0xf3, 0xc5, 0x7f, 0x03, 0x00, 0x00, 0xff, 0xff,
+	0x23, 0xc0, 0x8f, 0x3c, 0x22, 0x16, 0x00, 0x00,
 }
 
 func (m *RaftMessage) Marshal() (dAtA []byte, err error) {
@@ -3860,6 +3923,38 @@ func (m *FlushMemtable) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	return len(dAtA) - i, nil
 }
 
+func (m *RefreshBuckets) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *RefreshBuckets) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *RefreshBuckets) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.Version != 0 {
+		i = encodeVarintRaftServerpb(dAtA, i, uint64(m.Version))
+		i--
+		dAtA[i] = 0x8
+	}
+	return len(dAtA) - i, nil
+}
+
 func (m *CheckGcPeer) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -3945,6 +4040,18 @@ func (m *ExtraMessage) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
+	if m.RefreshBuckets != nil {
+		{
+			size, err := m.RefreshBuckets.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintRaftServerpb(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x4a
+	}
 	if m.AvailabilityContext != nil {
 		{
 			size, err := m.AvailabilityContext.MarshalToSizedBuffer(dAtA[:i])
@@ -4732,6 +4839,21 @@ func (m *FlushMemtable) Size() (n int) {
 	return n
 }
 
+func (m *RefreshBuckets) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.Version != 0 {
+		n += 1 + sovRaftServerpb(uint64(m.Version))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
 func (m *CheckGcPeer) Size() (n int) {
 	if m == nil {
 		return 0
@@ -4794,6 +4916,10 @@ func (m *ExtraMessage) Size() (n int) {
 		l = m.AvailabilityContext.Size()
 		n += 1 + l + sovRaftServerpb(uint64(l))
 	}
+	if m.RefreshBuckets != nil {
+		l = m.RefreshBuckets.Size()
+		n += 1 + l + sovRaftServerpb(uint64(l))
+	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -8675,6 +8801,76 @@ func (m *FlushMemtable) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *RefreshBuckets) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowRaftServerpb
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: RefreshBuckets: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: RefreshBuckets: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Version", wireType)
+			}
+			m.Version = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowRaftServerpb
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Version |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipRaftServerpb(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthRaftServerpb
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func (m *CheckGcPeer) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0
@@ -9085,6 +9281,42 @@ func (m *ExtraMessage) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
+		case 9:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field RefreshBuckets", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowRaftServerpb
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthRaftServerpb
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthRaftServerpb
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.RefreshBuckets == nil {
+				m.RefreshBuckets = &RefreshBuckets{}
+			}
+			if err := m.RefreshBuckets.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipRaftServerpb(dAtA[iNdEx:])
diff --git a/proto/raft_serverpb.proto b/proto/raft_serverpb.proto
index 033392b87..30221c765 100644
--- a/proto/raft_serverpb.proto
+++ b/proto/raft_serverpb.proto
@@ -246,12 +246,17 @@ enum ExtraMessageType {
     MsgGcPeerRequest = 11;
     MsgGcPeerResponse = 12;
     MsgFlushMemtable = 13;
+    MsgRefreshBuckets = 14;
 }
 
 message FlushMemtable {
     uint64 region_id = 1;
 }
 
+message RefreshBuckets{
+    uint64 version = 1;
+}
+
 message CheckGcPeer {
     // The region ID who triggers the check and wait for report. It should be
     // the ID of RaftMessage.from.
@@ -279,4 +284,6 @@ message ExtraMessage {
     FlushMemtable flush_memtable = 7;
     // Used by `MsgAvailabilityRequest` and `MsgAvailabilityResponse` in v2.
     AvailabilityContext availability_context = 8;
+    // notice the peer to refresh buckets version
+    RefreshBuckets refresh_buckets = 9;
 }
diff --git a/scripts/proto.lock b/scripts/proto.lock
index e82148f67..07def5123 100644
--- a/scripts/proto.lock
+++ b/scripts/proto.lock
@@ -16567,6 +16567,10 @@
               {
                 "name": "MsgFlushMemtable",
                 "integer": 13
+              },
+              {
+                "name": "MsgRefreshBuckets",
+                "integer": 14
               }
             ]
           }
@@ -17170,6 +17174,16 @@
               }
             ]
           },
+          {
+            "name": "RefreshBuckets",
+            "fields": [
+              {
+                "id": 1,
+                "name": "version",
+                "type": "uint64"
+              }
+            ]
+          },
           {
             "name": "CheckGcPeer",
             "fields": [
@@ -17238,6 +17252,11 @@
                 "id": 8,
                 "name": "availability_context",
                 "type": "AvailabilityContext"
+              },
+              {
+                "id": 9,
+                "name": "refresh_buckets",
+                "type": "RefreshBuckets"
               }
             ]
           }