diff --git a/go-binlog/pump.pb.go b/go-binlog/pump.pb.go
index 26671030d..48ebaf110 100644
--- a/go-binlog/pump.pb.go
+++ b/go-binlog/pump.pb.go
@@ -163,6 +163,8 @@ type Entity struct {
 	Pos Pos `protobuf:"bytes,1,opt,name=pos" json:"pos"`
 	// The payload of binlog entity.
 	Payload []byte `protobuf:"bytes,2,opt,name=payload,proto3" json:"payload,omitempty"`
+	// checksum of binlog payload.
+	Checksum []byte `protobuf:"bytes,3,opt,name=checksum,proto3" json:"checksum,omitempty"`
 }
 
 func (m *Entity) Reset()                    { *m = Entity{} }
@@ -184,6 +186,13 @@ func (m *Entity) GetPayload() []byte {
 	return nil
 }
 
+func (m *Entity) GetChecksum() []byte {
+	if m != nil {
+		return m.Checksum
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterType((*WriteBinlogReq)(nil), "binlog.WriteBinlogReq")
 	proto.RegisterType((*WriteBinlogResp)(nil), "binlog.WriteBinlogResp")
@@ -499,6 +508,12 @@ func (m *Entity) MarshalTo(dAtA []byte) (int, error) {
 		i = encodeVarintPump(dAtA, i, uint64(len(m.Payload)))
 		i += copy(dAtA[i:], m.Payload)
 	}
+	if len(m.Checksum) > 0 {
+		dAtA[i] = 0x1a
+		i++
+		i = encodeVarintPump(dAtA, i, uint64(len(m.Checksum)))
+		i += copy(dAtA[i:], m.Checksum)
+	}
 	return i, nil
 }
 
@@ -574,6 +589,10 @@ func (m *Entity) Size() (n int) {
 	if l > 0 {
 		n += 1 + l + sovPump(uint64(l))
 	}
+	l = len(m.Checksum)
+	if l > 0 {
+		n += 1 + l + sovPump(uint64(l))
+	}
 	return n
 }
 
@@ -1126,6 +1145,37 @@ func (m *Entity) Unmarshal(dAtA []byte) error {
 				m.Payload = []byte{}
 			}
 			iNdEx = postIndex
+		case 3:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Checksum", wireType)
+			}
+			var byteLen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowPump
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				byteLen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if byteLen < 0 {
+				return ErrInvalidLengthPump
+			}
+			postIndex := iNdEx + byteLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Checksum = append(m.Checksum[:0], dAtA[iNdEx:postIndex]...)
+			if m.Checksum == nil {
+				m.Checksum = []byte{}
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipPump(dAtA[iNdEx:])
@@ -1255,27 +1305,28 @@ var (
 func init() { proto.RegisterFile("pump.proto", fileDescriptorPump) }
 
 var fileDescriptorPump = []byte{
-	// 341 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x92, 0xcf, 0x4a, 0xf3, 0x40,
-	0x14, 0xc5, 0x3b, 0x5f, 0x4b, 0x3e, 0x7a, 0xa3, 0x55, 0x06, 0xad, 0xa5, 0x48, 0x2c, 0xe3, 0xa6,
-	0x82, 0xb4, 0x52, 0x71, 0x2b, 0x52, 0xfc, 0xbb, 0x0b, 0xd9, 0xb8, 0x13, 0x5a, 0x9d, 0x84, 0x40,
-	0xd2, 0x19, 0xe7, 0x4e, 0xc0, 0xbe, 0x82, 0x4f, 0xe0, 0x23, 0x75, 0xe9, 0x13, 0x88, 0xd4, 0x17,
-	0x91, 0x99, 0x4e, 0x6d, 0x0b, 0x15, 0xdc, 0xe5, 0x9c, 0xb9, 0xf3, 0xbb, 0x27, 0x27, 0x01, 0x90,
-	0x45, 0x2e, 0x3b, 0x52, 0x09, 0x2d, 0xa8, 0x37, 0x4c, 0x47, 0x99, 0x48, 0x9a, 0x3b, 0x89, 0x48,
-	0x84, 0xb5, 0xba, 0xe6, 0x69, 0x76, 0xca, 0x6e, 0xa1, 0x76, 0xaf, 0x52, 0xcd, 0xfb, 0x76, 0x28,
-	0xe2, 0xcf, 0x74, 0x1f, 0xaa, 0x8f, 0x59, 0x81, 0x9a, 0xab, 0xbb, 0xcb, 0x06, 0x69, 0x91, 0x76,
-	0x25, 0x5a, 0x18, 0xb4, 0x01, 0xff, 0xe5, 0x60, 0x9c, 0x89, 0xc1, 0x53, 0xe3, 0x5f, 0x8b, 0xb4,
-	0x37, 0xa2, 0xb9, 0x64, 0x47, 0xb0, 0xb5, 0x42, 0x42, 0x49, 0xeb, 0xe0, 0x71, 0xa5, 0x72, 0x4c,
-	0x2c, 0xa7, 0x1a, 0x39, 0xc5, 0x1e, 0x60, 0x33, 0x2c, 0xb2, 0xec, 0xaf, 0x3b, 0xbb, 0x50, 0x45,
-	0x3d, 0x50, 0xfa, 0x5a, 0x89, 0xdc, 0x6e, 0xf5, 0x7b, 0x7e, 0x67, 0xf6, 0x56, 0x9d, 0x50, 0x60,
-	0xbf, 0x32, 0xf9, 0x38, 0x28, 0x45, 0x8b, 0x19, 0x76, 0x0e, 0xb5, 0x65, 0x3e, 0x4a, 0x7a, 0x0c,
-	0x1e, 0x1f, 0xe9, 0x54, 0x8f, 0x2d, 0xdd, 0xef, 0xd5, 0xe6, 0xf7, 0xaf, 0xac, 0xeb, 0x10, 0x6e,
-	0x86, 0x9d, 0x41, 0x39, 0x14, 0x68, 0xe2, 0x63, 0x11, 0xc7, 0xe9, 0x8b, 0x8b, 0xe4, 0x94, 0xf1,
-	0x45, 0x1c, 0x23, 0xd7, 0x36, 0x4c, 0x39, 0x72, 0x8a, 0xdd, 0x80, 0x37, 0xc3, 0xd1, 0x43, 0x28,
-	0x4b, 0x81, 0x6e, 0xd7, 0x9a, 0xac, 0xe6, 0xf4, 0xf7, 0x2a, 0x7b, 0xaf, 0x04, 0x2a, 0x61, 0x91,
-	0x4b, 0x7a, 0x01, 0xfe, 0x52, 0xa7, 0xb4, 0x3e, 0x27, 0xad, 0x7e, 0xb2, 0xe6, 0xde, 0x5a, 0x1f,
-	0x25, 0x2b, 0x19, 0xc2, 0xa2, 0x0a, 0xa4, 0xbb, 0x3f, 0x59, 0x96, 0xfb, 0x6f, 0xd6, 0xd7, 0xd9,
-	0xe6, 0xfe, 0x09, 0xe9, 0x6f, 0x4f, 0xa6, 0x01, 0x79, 0x9f, 0x06, 0xe4, 0x73, 0x1a, 0x90, 0xb7,
-	0xaf, 0xa0, 0x34, 0xf4, 0xec, 0xaf, 0x73, 0xfa, 0x1d, 0x00, 0x00, 0xff, 0xff, 0xf1, 0x05, 0xc3,
-	0x79, 0x66, 0x02, 0x00, 0x00,
+	// 355 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x52, 0xcd, 0x4a, 0xf3, 0x40,
+	0x14, 0xed, 0x7c, 0x29, 0xf9, 0xec, 0x8d, 0x56, 0x19, 0xb4, 0x86, 0x20, 0xb1, 0x8c, 0x9b, 0x0a,
+	0xd2, 0x4a, 0xc5, 0xad, 0x48, 0x51, 0xd1, 0x5d, 0xc8, 0xc6, 0x9d, 0xd0, 0xc6, 0x49, 0x0c, 0x26,
+	0x9d, 0x71, 0x66, 0x02, 0xf6, 0x15, 0x7c, 0x02, 0x1f, 0xa9, 0x4b, 0x9f, 0x40, 0xa4, 0xbe, 0x88,
+	0x64, 0x3a, 0xfd, 0x83, 0x0a, 0xee, 0x72, 0xce, 0xbd, 0xf7, 0x9c, 0x93, 0x7b, 0x07, 0x80, 0x17,
+	0x39, 0x6f, 0x73, 0xc1, 0x14, 0xc3, 0xf6, 0x20, 0x1d, 0x66, 0x2c, 0xf1, 0x76, 0x13, 0x96, 0x30,
+	0x4d, 0x75, 0xca, 0xaf, 0x69, 0x95, 0xdc, 0x42, 0xfd, 0x5e, 0xa4, 0x8a, 0xf6, 0x74, 0x53, 0x48,
+	0x5f, 0xf0, 0x01, 0xd4, 0xa2, 0xac, 0x90, 0x8a, 0x8a, 0xbb, 0x2b, 0x17, 0x35, 0x51, 0xab, 0x1a,
+	0x2e, 0x08, 0xec, 0xc2, 0x7f, 0xde, 0x1f, 0x65, 0xac, 0xff, 0xe8, 0xfe, 0x6b, 0xa2, 0xd6, 0x66,
+	0x38, 0x83, 0xe4, 0x18, 0xb6, 0x57, 0x94, 0x24, 0xc7, 0x0d, 0xb0, 0xa9, 0x10, 0xb9, 0x4c, 0xb4,
+	0x4e, 0x2d, 0x34, 0x88, 0x3c, 0xc0, 0x56, 0x50, 0x64, 0xd9, 0x5f, 0x3d, 0x3b, 0x50, 0x93, 0xaa,
+	0x2f, 0xd4, 0x8d, 0x60, 0xb9, 0x76, 0x75, 0xba, 0x4e, 0x7b, 0xfa, 0x57, 0xed, 0x80, 0xc9, 0x5e,
+	0x75, 0xfc, 0x79, 0x58, 0x09, 0x17, 0x3d, 0xe4, 0x02, 0xea, 0xcb, 0xfa, 0x92, 0xe3, 0x13, 0xb0,
+	0xe9, 0x50, 0xa5, 0x6a, 0xa4, 0xd5, 0x9d, 0x6e, 0x7d, 0x36, 0x7f, 0xad, 0x59, 0x23, 0x61, 0x7a,
+	0xc8, 0x39, 0x58, 0x01, 0x93, 0x65, 0x7c, 0x59, 0xc4, 0x71, 0xfa, 0x6a, 0x22, 0x19, 0x54, 0xf2,
+	0x2c, 0x8e, 0x25, 0x55, 0x3a, 0x8c, 0x15, 0x1a, 0x44, 0x22, 0xb0, 0xa7, 0x72, 0xf8, 0x08, 0x2c,
+	0xce, 0xa4, 0xf1, 0x5a, 0x93, 0xb5, 0xac, 0xfe, 0xbe, 0x4a, 0xec, 0xc1, 0x46, 0xf4, 0x44, 0xa3,
+	0x67, 0x59, 0xe4, 0xae, 0xa5, 0x4b, 0x73, 0xdc, 0x7d, 0x43, 0x50, 0x0d, 0x8a, 0x9c, 0xe3, 0x4b,
+	0x70, 0x96, 0xf6, 0x8d, 0x1b, 0x33, 0x97, 0xd5, 0x73, 0x7a, 0xfb, 0x6b, 0x79, 0xc9, 0x49, 0xa5,
+	0x54, 0x58, 0xac, 0x49, 0xe2, 0xbd, 0x79, 0xce, 0xe5, 0xdb, 0x78, 0x8d, 0x75, 0x74, 0x39, 0x7f,
+	0x8a, 0x7a, 0x3b, 0xe3, 0x89, 0x8f, 0x3e, 0x26, 0x3e, 0xfa, 0x9a, 0xf8, 0xe8, 0xfd, 0xdb, 0xaf,
+	0x0c, 0x6c, 0xfd, 0xac, 0xce, 0x7e, 0x02, 0x00, 0x00, 0xff, 0xff, 0x9a, 0x2c, 0x86, 0x78, 0x82,
+	0x02, 0x00, 0x00,
 }
diff --git a/proto/binlog/pump.proto b/proto/binlog/pump.proto
index 42a32f976..ba059a368 100644
--- a/proto/binlog/pump.proto
+++ b/proto/binlog/pump.proto
@@ -62,4 +62,7 @@ message Entity {
 
     // The payload of binlog entity.
     bytes payload = 2;
+
+    // checksum of binlog payload.
+    bytes checksum = 3;
 }