diff --git a/pkg/coprocessor/coprocessor.pb.go b/pkg/coprocessor/coprocessor.pb.go
index ad63f5941..300620cf9 100644
--- a/pkg/coprocessor/coprocessor.pb.go
+++ b/pkg/coprocessor/coprocessor.pb.go
@@ -101,6 +101,8 @@ type Request struct {
 	PagingSize uint64 `protobuf:"varint,10,opt,name=paging_size,json=pagingSize,proto3" json:"paging_size,omitempty"`
 	// tasks stores the batched coprocessor tasks sent to the same tikv store.
 	Tasks                []*StoreBatchTask `protobuf:"bytes,11,rep,name=tasks,proto3" json:"tasks,omitempty"`
+	ConnectionId         uint64            `protobuf:"varint,12,opt,name=connection_id,json=connectionId,proto3" json:"connection_id,omitempty"`
+	ConnectionAlias      string            `protobuf:"bytes,13,opt,name=connection_alias,json=connectionAlias,proto3" json:"connection_alias,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}          `json:"-"`
 	XXX_unrecognized     []byte            `json:"-"`
 	XXX_sizecache        int32             `json:"-"`
@@ -216,6 +218,20 @@ func (m *Request) GetTasks() []*StoreBatchTask {
 	return nil
 }
 
+func (m *Request) GetConnectionId() uint64 {
+	if m != nil {
+		return m.ConnectionId
+	}
+	return 0
+}
+
+func (m *Request) GetConnectionAlias() string {
+	if m != nil {
+		return m.ConnectionAlias
+	}
+	return ""
+}
+
 type Response struct {
 	Data        github_com_pingcap_kvproto_pkg_sharedbytes.SharedBytes `protobuf:"bytes,1,opt,name=data,proto3,customtype=github.com/pingcap/kvproto/pkg/sharedbytes.SharedBytes" json:"data"`
 	RegionError *errorpb.Error                                         `protobuf:"bytes,2,opt,name=region_error,json=regionError,proto3" json:"region_error,omitempty"`
@@ -480,6 +496,8 @@ type BatchRequest struct {
 	// Used for partition table scan
 	TableRegions         []*TableRegions `protobuf:"bytes,7,rep,name=table_regions,json=tableRegions,proto3" json:"table_regions,omitempty"`
 	LogId                string          `protobuf:"bytes,8,opt,name=log_id,json=logId,proto3" json:"log_id,omitempty"`
+	ConnectionId         uint64          `protobuf:"varint,9,opt,name=connection_id,json=connectionId,proto3" json:"connection_id,omitempty"`
+	ConnectionAlias      string          `protobuf:"bytes,10,opt,name=connection_alias,json=connectionAlias,proto3" json:"connection_alias,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}        `json:"-"`
 	XXX_unrecognized     []byte          `json:"-"`
 	XXX_sizecache        int32           `json:"-"`
@@ -574,6 +592,20 @@ func (m *BatchRequest) GetLogId() string {
 	return ""
 }
 
+func (m *BatchRequest) GetConnectionId() uint64 {
+	if m != nil {
+		return m.ConnectionId
+	}
+	return 0
+}
+
+func (m *BatchRequest) GetConnectionAlias() string {
+	if m != nil {
+		return m.ConnectionAlias
+	}
+	return ""
+}
+
 type BatchResponse struct {
 	Data                 github_com_pingcap_kvproto_pkg_sharedbytes.SharedBytes `protobuf:"bytes,1,opt,name=data,proto3,customtype=github.com/pingcap/kvproto/pkg/sharedbytes.SharedBytes" json:"data"`
 	OtherError           string                                                 `protobuf:"bytes,2,opt,name=other_error,json=otherError,proto3" json:"other_error,omitempty"`
@@ -812,70 +844,73 @@ func init() {
 func init() { proto.RegisterFile("coprocessor.proto", fileDescriptor_29878c170c3dd019) }
 
 var fileDescriptor_29878c170c3dd019 = []byte{
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+	0xd3, 0xc9, 0x30, 0x3d, 0xe1, 0x38, 0x0f, 0xd0, 0x23, 0xe6, 0x6a, 0xcc, 0x44, 0x9e, 0xbc, 0x62,
+	0x0e, 0x09, 0x06, 0xb2, 0xb9, 0x3e, 0x81, 0xaa, 0x61, 0x8d, 0x21, 0xc8, 0x7b, 0x99, 0x65, 0x63,
+	0xd0, 0x17, 0xe0, 0xb3, 0x0b, 0x46, 0xc3, 0x88, 0x29, 0x92, 0x4c, 0xa5, 0x21, 0x89, 0xd7, 0x5f,
+	0x9f, 0x95, 0xdf, 0xbf, 0x60, 0xf4, 0x2b, 0xeb, 0xc3, 0x1e, 0x9b, 0x1b, 0x68, 0x0f, 0x56, 0x17,
+	0x37, 0x86, 0xe7, 0xfd, 0xc0, 0x33, 0x7b, 0x37, 0x6e, 0xda, 0x7b, 0xdc, 0xc7, 0x0d, 0xb6, 0x68,
+	0xa2, 0x36, 0xf8, 0x33, 0x46, 0x8f, 0x13, 0x65, 0xde, 0x87, 0x8b, 0x21, 0x67, 0xf3, 0xd7, 0x89,
+	0x42, 0x9f, 0x02, 0xb2, 0xee, 0x29, 0x91, 0x6a, 0xc6, 0x62, 0xd7, 0x5c, 0x7e, 0xcb, 0x78, 0x0e,
+	0x88, 0x54, 0x05, 0x85, 0x3b, 0xd0, 0xa0, 0x24, 0x0d, 0x47, 0xcc, 0xe6, 0x2c, 0x08, 0xea, 0x51,
+	0x92, 0x0e, 0x98, 0xc9, 0x19, 0xa1, 0xcf, 0x61, 0x63, 0x4a, 0x14, 0x93, 0x2a, 0x1c, 0x9d, 0xd1,
+	0x09, 0x53, 0x72, 0x96, 0xd5, 0x52, 0x6a, 0xdd, 0x7a, 0x07, 0xd6, 0x59, 0x64, 0x3e, 0x80, 0xd5,
+	0x91, 0x79, 0x48, 0x22, 0x27, 0x8d, 0x66, 0x96, 0x26, 0xef, 0xd3, 0xff, 0x22, 0x6f, 0x1e, 0x8b,
+	0x9b, 0x66, 0x6f, 0x61, 0xca, 0x6f, 0x2a, 0x2e, 0xb4, 0xbc, 0xce, 0x4f, 0x0e, 0x00, 0x36, 0xf7,
+	0xaf, 0xef, 0x16, 0x3d, 0x81, 0x95, 0x9c, 0x31, 0x49, 0x64, 0xa8, 0x58, 0xc1, 0xae, 0x05, 0x86,
+	0x11, 0x7a, 0x31, 0xa7, 0x53, 0xc6, 0xe9, 0x38, 0xa7, 0xd3, 0xfd, 0x5e, 0x2e, 0x7d, 0x36, 0xcd,
+	0xbe, 0x76, 0xcd, 0x38, 0xa5, 0x8d, 0x05, 0x89, 0x29, 0xdf, 0x42, 0x62, 0x3a, 0xa7, 0xe0, 0x1f,
+	0xe9, 0x47, 0x6c, 0xf3, 0x49, 0xf4, 0x1c, 0xd6, 0xb2, 0xf1, 0xa5, 0x4c, 0x28, 0x99, 0x86, 0x4a,
+	0x3b, 0x8a, 0xde, 0xca, 0x78, 0xb5, 0x70, 0x98, 0x0d, 0xc3, 0x08, 0xed, 0x40, 0xdd, 0x56, 0x96,
+	0x41, 0xc9, 0xd4, 0x7a, 0xb8, 0x54, 0x6b, 0x7e, 0x52, 0x5c, 0xc4, 0x75, 0xde, 0x96, 0xc0, 0x1f,
+	0xd8, 0xd1, 0xdc, 0x8d, 0xf8, 0x2e, 0xf4, 0x54, 0xb9, 0x5d, 0x4f, 0x4b, 0x7a, 0x5d, 0x5d, 0xd6,
+	0xeb, 0x65, 0x85, 0xac, 0x5d, 0x57, 0xc8, 0x3d, 0x68, 0xd8, 0x19, 0x15, 0x25, 0xeb, 0xa6, 0xe4,
+	0xa3, 0xa5, 0x92, 0x8b, 0xe3, 0xc5, 0xbe, 0x5a, 0x1c, 0xf6, 0x03, 0xfd, 0xfe, 0x63, 0x3d, 0x61,
+	0xd7, 0xbc, 0xe7, 0xea, 0x94, 0xc7, 0xc3, 0xe8, 0x5d, 0xe9, 0x5b, 0xb9, 0xa5, 0xf4, 0xc1, 0xcd,
+	0xd2, 0xf7, 0xd6, 0x81, 0xc6, 0x60, 0x91, 0x8f, 0x77, 0xa2, 0x7f, 0xd7, 0x14, 0xaa, 0xf4, 0x8e,
+	0x42, 0x5d, 0x17, 0x9d, 0xf2, 0x6d, 0x45, 0x67, 0x17, 0x1a, 0x82, 0x29, 0x71, 0x19, 0x2e, 0xdf,
+	0x6c, 0x73, 0xf9, 0x2d, 0x60, 0xdf, 0x04, 0xe5, 0xb3, 0xed, 0xfc, 0xe6, 0x40, 0x73, 0xf9, 0x71,
+	0xde, 0xcd, 0x7b, 0x6b, 0x43, 0x25, 0x63, 0x4c, 0xe4, 0xa7, 0xf1, 0x8b, 0xf8, 0xef, 0x19, 0x13,
+	0xd8, 0x78, 0x3e, 0xf4, 0xa7, 0xff, 0x10, 0xea, 0xfa, 0x0f, 0xa8, 0x7b, 0xb4, 0x6c, 0xac, 0x69,
+	0x73, 0x18, 0x75, 0x7e, 0x2d, 0xc1, 0xc6, 0xcd, 0x72, 0xf3, 0x7f, 0xfc, 0x9f, 0xbd, 0x6f, 0x0c,
+	0x37, 0xfd, 0x82, 0x6a, 0x1f, 0xf0, 0x0b, 0x1a, 0x7c, 0xfc, 0xc7, 0x2f, 0xae, 0xf3, 0xfa, 0x6a,
+	0xd3, 0xf9, 0xfd, 0x6a, 0xd3, 0xf9, 0xeb, 0x6a, 0xd3, 0xf9, 0xf9, 0xef, 0xcd, 0x7b, 0xd0, 0xe2,
+	0x22, 0xee, 0xa9, 0x64, 0x72, 0xde, 0xcb, 0x27, 0x34, 0xaa, 0x99, 0xcf, 0xee, 0xbf, 0x01, 0x00,
+	0x00, 0xff, 0xff, 0x4d, 0x1f, 0xa1, 0x59, 0xd2, 0x0a, 0x00, 0x00,
 }
 
 func (m *KeyRange) Marshal() (dAtA []byte, err error) {
@@ -943,6 +978,18 @@ func (m *Request) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
+	if len(m.ConnectionAlias) > 0 {
+		i -= len(m.ConnectionAlias)
+		copy(dAtA[i:], m.ConnectionAlias)
+		i = encodeVarintCoprocessor(dAtA, i, uint64(len(m.ConnectionAlias)))
+		i--
+		dAtA[i] = 0x6a
+	}
+	if m.ConnectionId != 0 {
+		i = encodeVarintCoprocessor(dAtA, i, uint64(m.ConnectionId))
+		i--
+		dAtA[i] = 0x60
+	}
 	if len(m.Tasks) > 0 {
 		for iNdEx := len(m.Tasks) - 1; iNdEx >= 0; iNdEx-- {
 			{
@@ -1314,6 +1361,18 @@ func (m *BatchRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
+	if len(m.ConnectionAlias) > 0 {
+		i -= len(m.ConnectionAlias)
+		copy(dAtA[i:], m.ConnectionAlias)
+		i = encodeVarintCoprocessor(dAtA, i, uint64(len(m.ConnectionAlias)))
+		i--
+		dAtA[i] = 0x52
+	}
+	if m.ConnectionId != 0 {
+		i = encodeVarintCoprocessor(dAtA, i, uint64(m.ConnectionId))
+		i--
+		dAtA[i] = 0x48
+	}
 	if len(m.LogId) > 0 {
 		i -= len(m.LogId)
 		copy(dAtA[i:], m.LogId)
@@ -1694,6 +1753,13 @@ func (m *Request) Size() (n int) {
 			n += 1 + l + sovCoprocessor(uint64(l))
 		}
 	}
+	if m.ConnectionId != 0 {
+		n += 1 + sovCoprocessor(uint64(m.ConnectionId))
+	}
+	l = len(m.ConnectionAlias)
+	if l > 0 {
+		n += 1 + l + sovCoprocessor(uint64(l))
+	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -1841,6 +1907,13 @@ func (m *BatchRequest) Size() (n int) {
 	if l > 0 {
 		n += 1 + l + sovCoprocessor(uint64(l))
 	}
+	if m.ConnectionId != 0 {
+		n += 1 + sovCoprocessor(uint64(m.ConnectionId))
+	}
+	l = len(m.ConnectionAlias)
+	if l > 0 {
+		n += 1 + l + sovCoprocessor(uint64(l))
+	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -2367,6 +2440,57 @@ func (m *Request) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
+		case 12:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ConnectionId", wireType)
+			}
+			m.ConnectionId = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowCoprocessor
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.ConnectionId |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 13:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ConnectionAlias", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowCoprocessor
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthCoprocessor
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthCoprocessor
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.ConnectionAlias = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipCoprocessor(dAtA[iNdEx:])
@@ -3297,6 +3421,57 @@ func (m *BatchRequest) Unmarshal(dAtA []byte) error {
 			}
 			m.LogId = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
+		case 9:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ConnectionId", wireType)
+			}
+			m.ConnectionId = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowCoprocessor
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.ConnectionId |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 10:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ConnectionAlias", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowCoprocessor
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthCoprocessor
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthCoprocessor
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.ConnectionAlias = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipCoprocessor(dAtA[iNdEx:])
diff --git a/proto/coprocessor.proto b/proto/coprocessor.proto
index 390d7674f..d0f83a0da 100644
--- a/proto/coprocessor.proto
+++ b/proto/coprocessor.proto
@@ -39,6 +39,8 @@ message Request {
     uint64 paging_size = 10;
     // tasks stores the batched coprocessor tasks sent to the same tikv store.
     repeated StoreBatchTask tasks = 11;
+    uint64 connection_id = 12; // This is the session id between a client and tidb
+    string connection_alias = 13; // This is the session alias between a client and tidb
 }
 
 message Response {
@@ -91,6 +93,8 @@ message BatchRequest {
     // Used for partition table scan
     repeated TableRegions table_regions = 7;
     string log_id = 8;
+    uint64 connection_id = 9; // This is the session id between a client and tidb
+    string connection_alias = 10; // This is the session alias between a client and tidb
 }
 
 message BatchResponse {
diff --git a/scripts/proto.lock b/scripts/proto.lock
index e0621f0e5..3282a3d19 100644
--- a/scripts/proto.lock
+++ b/scripts/proto.lock
@@ -2658,6 +2658,16 @@
                 "name": "tasks",
                 "type": "StoreBatchTask",
                 "is_repeated": true
+              },
+              {
+                "id": 12,
+                "name": "connection_id",
+                "type": "uint64"
+              },
+              {
+                "id": 13,
+                "name": "connection_alias",
+                "type": "string"
               }
             ]
           },
@@ -2821,6 +2831,16 @@
                 "id": 8,
                 "name": "log_id",
                 "type": "string"
+              },
+              {
+                "id": 9,
+                "name": "connection_id",
+                "type": "uint64"
+              },
+              {
+                "id": 10,
+                "name": "connection_alias",
+                "type": "string"
               }
             ]
           },