diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000000..e8f9e3a8ae
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,3 @@
+master-proto-gen:
+	protoc --go_out=plugins=grpc,paths=source_relative:. pkg/master/grpc/master/master.proto
+	protoc --go_out=plugins=grpc,paths=source_relative:. pkg/master/grpc/message/message.proto
diff --git a/pkg/master/grpc/master.pb.go b/pkg/master/grpc/master.pb.go
deleted file mode 100644
index 4dcbdaa3a9..0000000000
--- a/pkg/master/grpc/master.pb.go
+++ /dev/null
@@ -1,235 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: master.proto
-
-//option go_package = "github.com/czs007/suvilm/pkg/master/grpc";
-
-package masterpb
-
-import (
-	context "context"
-	fmt "fmt"
-	proto "github.com/golang/protobuf/proto"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
-	math "math"
-)
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
-
-type CreateCollectionRequest struct {
-	CollectionName       string   `protobuf:"bytes,1,opt,name=collection_name,json=collectionName,proto3" json:"collection_name,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *CreateCollectionRequest) Reset()         { *m = CreateCollectionRequest{} }
-func (m *CreateCollectionRequest) String() string { return proto.CompactTextString(m) }
-func (*CreateCollectionRequest) ProtoMessage()    {}
-func (*CreateCollectionRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_f9c348dec43a6705, []int{0}
-}
-
-func (m *CreateCollectionRequest) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_CreateCollectionRequest.Unmarshal(m, b)
-}
-func (m *CreateCollectionRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_CreateCollectionRequest.Marshal(b, m, deterministic)
-}
-func (m *CreateCollectionRequest) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_CreateCollectionRequest.Merge(m, src)
-}
-func (m *CreateCollectionRequest) XXX_Size() int {
-	return xxx_messageInfo_CreateCollectionRequest.Size(m)
-}
-func (m *CreateCollectionRequest) XXX_DiscardUnknown() {
-	xxx_messageInfo_CreateCollectionRequest.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_CreateCollectionRequest proto.InternalMessageInfo
-
-func (m *CreateCollectionRequest) GetCollectionName() string {
-	if m != nil {
-		return m.CollectionName
-	}
-	return ""
-}
-
-type CreateCollectionResponse struct {
-	CollectionName       string   `protobuf:"bytes,1,opt,name=collection_name,json=collectionName,proto3" json:"collection_name,omitempty"`
-	CollectionId         uint64   `protobuf:"varint,2,opt,name=collection_id,json=collectionId,proto3" json:"collection_id,omitempty"`
-	SegmentIds           []uint64 `protobuf:"varint,3,rep,packed,name=segment_ids,json=segmentIds,proto3" json:"segment_ids,omitempty"`
-	PartitionTags        []string `protobuf:"bytes,4,rep,name=partition_tags,json=partitionTags,proto3" json:"partition_tags,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *CreateCollectionResponse) Reset()         { *m = CreateCollectionResponse{} }
-func (m *CreateCollectionResponse) String() string { return proto.CompactTextString(m) }
-func (*CreateCollectionResponse) ProtoMessage()    {}
-func (*CreateCollectionResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_f9c348dec43a6705, []int{1}
-}
-
-func (m *CreateCollectionResponse) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_CreateCollectionResponse.Unmarshal(m, b)
-}
-func (m *CreateCollectionResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_CreateCollectionResponse.Marshal(b, m, deterministic)
-}
-func (m *CreateCollectionResponse) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_CreateCollectionResponse.Merge(m, src)
-}
-func (m *CreateCollectionResponse) XXX_Size() int {
-	return xxx_messageInfo_CreateCollectionResponse.Size(m)
-}
-func (m *CreateCollectionResponse) XXX_DiscardUnknown() {
-	xxx_messageInfo_CreateCollectionResponse.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_CreateCollectionResponse proto.InternalMessageInfo
-
-func (m *CreateCollectionResponse) GetCollectionName() string {
-	if m != nil {
-		return m.CollectionName
-	}
-	return ""
-}
-
-func (m *CreateCollectionResponse) GetCollectionId() uint64 {
-	if m != nil {
-		return m.CollectionId
-	}
-	return 0
-}
-
-func (m *CreateCollectionResponse) GetSegmentIds() []uint64 {
-	if m != nil {
-		return m.SegmentIds
-	}
-	return nil
-}
-
-func (m *CreateCollectionResponse) GetPartitionTags() []string {
-	if m != nil {
-		return m.PartitionTags
-	}
-	return nil
-}
-
-func init() {
-	proto.RegisterType((*CreateCollectionRequest)(nil), "masterpb.CreateCollectionRequest")
-	proto.RegisterType((*CreateCollectionResponse)(nil), "masterpb.CreateCollectionResponse")
-}
-
-func init() { proto.RegisterFile("master.proto", fileDescriptor_f9c348dec43a6705) }
-
-var fileDescriptor_f9c348dec43a6705 = []byte{
-	// 225 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x90, 0xcf, 0x4a, 0x03, 0x31,
-	0x10, 0x87, 0x5d, 0x77, 0x29, 0x76, 0x6c, 0xab, 0xe4, 0x62, 0xf0, 0xe2, 0x1a, 0x11, 0x73, 0xda,
-	0x83, 0xbe, 0x81, 0x3d, 0xf5, 0xa0, 0x87, 0xe0, 0xcd, 0x43, 0x49, 0x9b, 0x61, 0x09, 0x34, 0x7f,
-	0xcc, 0x8c, 0xef, 0xe5, 0x23, 0x0a, 0x5b, 0x6d, 0x45, 0x51, 0x3c, 0xe6, 0xe3, 0xc7, 0x47, 0xe6,
-	0x83, 0x49, 0xb0, 0xc4, 0x58, 0xba, 0x5c, 0x12, 0x27, 0x71, 0xb4, 0x7d, 0xe5, 0x95, 0xba, 0x87,
-	0xb3, 0x79, 0x41, 0xcb, 0x38, 0x4f, 0x9b, 0x0d, 0xae, 0xd9, 0xa7, 0x68, 0xf0, 0xe5, 0x15, 0x89,
-	0xc5, 0x0d, 0x9c, 0xac, 0x77, 0x70, 0x19, 0x6d, 0x40, 0x59, 0xb5, 0x95, 0x1e, 0x9b, 0xd9, 0x1e,
-	0x3f, 0xda, 0x80, 0xea, 0xad, 0x02, 0xf9, 0x53, 0x42, 0x39, 0x45, 0xc2, 0x7f, 0x5b, 0xc4, 0x15,
-	0x4c, 0xbf, 0x0c, 0xbd, 0x93, 0x87, 0x6d, 0xa5, 0x1b, 0x33, 0xd9, 0xc3, 0x85, 0x13, 0x17, 0x70,
-	0x4c, 0xd8, 0x07, 0x8c, 0xbc, 0xf4, 0x8e, 0x64, 0xdd, 0xd6, 0xba, 0x31, 0xf0, 0x81, 0x16, 0x8e,
-	0xc4, 0x35, 0xcc, 0xb2, 0x2d, 0xec, 0x07, 0x09, 0xdb, 0x9e, 0x64, 0xd3, 0xd6, 0x7a, 0x6c, 0xa6,
-	0x3b, 0xfa, 0x64, 0x7b, 0xba, 0x45, 0x18, 0x3d, 0x0c, 0x09, 0xc4, 0x33, 0x9c, 0x7e, 0xff, 0xbb,
-	0xb8, 0xec, 0x3e, 0xfb, 0x74, 0xbf, 0xc4, 0x39, 0x57, 0x7f, 0x4d, 0xb6, 0xa7, 0xab, 0x83, 0xd5,
-	0x68, 0xc8, 0x7d, 0xf7, 0x1e, 0x00, 0x00, 0xff, 0xff, 0x0d, 0xb6, 0xf8, 0x4e, 0x7e, 0x01, 0x00,
-	0x00,
-}
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ context.Context
-var _ grpc.ClientConn
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion4
-
-// MasterClient is the client API for Master service.
-//
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
-type MasterClient interface {
-	CreateCollection(ctx context.Context, in *CreateCollectionRequest, opts ...grpc.CallOption) (*CreateCollectionResponse, error)
-}
-
-type masterClient struct {
-	cc *grpc.ClientConn
-}
-
-func NewMasterClient(cc *grpc.ClientConn) MasterClient {
-	return &masterClient{cc}
-}
-
-func (c *masterClient) CreateCollection(ctx context.Context, in *CreateCollectionRequest, opts ...grpc.CallOption) (*CreateCollectionResponse, error) {
-	out := new(CreateCollectionResponse)
-	err := c.cc.Invoke(ctx, "/masterpb.Master/CreateCollection", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// MasterServer is the server API for Master service.
-type MasterServer interface {
-	CreateCollection(context.Context, *CreateCollectionRequest) (*CreateCollectionResponse, error)
-}
-
-// UnimplementedMasterServer can be embedded to have forward compatible implementations.
-type UnimplementedMasterServer struct {
-}
-
-func (*UnimplementedMasterServer) CreateCollection(ctx context.Context, req *CreateCollectionRequest) (*CreateCollectionResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method CreateCollection not implemented")
-}
-
-func RegisterMasterServer(s *grpc.Server, srv MasterServer) {
-	s.RegisterService(&_Master_serviceDesc, srv)
-}
-
-func _Master_CreateCollection_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(CreateCollectionRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(MasterServer).CreateCollection(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/masterpb.Master/CreateCollection",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(MasterServer).CreateCollection(ctx, req.(*CreateCollectionRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-var _Master_serviceDesc = grpc.ServiceDesc{
-	ServiceName: "masterpb.Master",
-	HandlerType: (*MasterServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "CreateCollection",
-			Handler:    _Master_CreateCollection_Handler,
-		},
-	},
-	Streams:  []grpc.StreamDesc{},
-	Metadata: "master.proto",
-}
diff --git a/pkg/master/grpc/master.proto b/pkg/master/grpc/master.proto
deleted file mode 100644
index 961a93f90b..0000000000
--- a/pkg/master/grpc/master.proto
+++ /dev/null
@@ -1,20 +0,0 @@
-syntax = "proto3";
-
-//option go_package = "github.com/czs007/suvilm/pkg/master/grpc";
-package masterpb;
-
-service Master {
-  rpc CreateCollection (CreateCollectionRequest) returns (CreateCollectionResponse) {}
-}
-
-
-message CreateCollectionRequest {
-  string collection_name = 1;
-}
-
-message CreateCollectionResponse {
-  string collection_name = 1;
-  uint64 collection_id = 2;
-  repeated uint64 segment_ids = 3;
-  repeated string partition_tags = 4;
-}
\ No newline at end of file
diff --git a/pkg/master/grpc/master/master.pb.go b/pkg/master/grpc/master/master.pb.go
new file mode 100644
index 0000000000..76447a18a7
--- /dev/null
+++ b/pkg/master/grpc/master/master.pb.go
@@ -0,0 +1,369 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: pkg/master/grpc/master/master.proto
+
+package master
+
+import (
+	context "context"
+	fmt "fmt"
+	message "github.com/czs007/suvlim/pkg/master/grpc/message"
+	proto "github.com/golang/protobuf/proto"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+	math "math"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+type Collection struct {
+	Id                   uint64          `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	Name                 string          `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	Schema               *message.Schema `protobuf:"bytes,3,opt,name=schema,proto3" json:"schema,omitempty"`
+	CreateTime           uint64          `protobuf:"varint,4,opt,name=create_time,json=createTime,proto3" json:"create_time,omitempty"`
+	SegmentIds           []uint64        `protobuf:"varint,5,rep,packed,name=segment_ids,json=segmentIds,proto3" json:"segment_ids,omitempty"`
+	PartitionTags        []string        `protobuf:"bytes,6,rep,name=partition_tags,json=partitionTags,proto3" json:"partition_tags,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}        `json:"-"`
+	XXX_unrecognized     []byte          `json:"-"`
+	XXX_sizecache        int32           `json:"-"`
+}
+
+func (m *Collection) Reset()         { *m = Collection{} }
+func (m *Collection) String() string { return proto.CompactTextString(m) }
+func (*Collection) ProtoMessage()    {}
+func (*Collection) Descriptor() ([]byte, []int) {
+	return fileDescriptor_64c7f42561e95429, []int{0}
+}
+
+func (m *Collection) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Collection.Unmarshal(m, b)
+}
+func (m *Collection) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Collection.Marshal(b, m, deterministic)
+}
+func (m *Collection) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Collection.Merge(m, src)
+}
+func (m *Collection) XXX_Size() int {
+	return xxx_messageInfo_Collection.Size(m)
+}
+func (m *Collection) XXX_DiscardUnknown() {
+	xxx_messageInfo_Collection.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Collection proto.InternalMessageInfo
+
+func (m *Collection) GetId() uint64 {
+	if m != nil {
+		return m.Id
+	}
+	return 0
+}
+
+func (m *Collection) GetName() string {
+	if m != nil {
+		return m.Name
+	}
+	return ""
+}
+
+func (m *Collection) GetSchema() *message.Schema {
+	if m != nil {
+		return m.Schema
+	}
+	return nil
+}
+
+func (m *Collection) GetCreateTime() uint64 {
+	if m != nil {
+		return m.CreateTime
+	}
+	return 0
+}
+
+func (m *Collection) GetSegmentIds() []uint64 {
+	if m != nil {
+		return m.SegmentIds
+	}
+	return nil
+}
+
+func (m *Collection) GetPartitionTags() []string {
+	if m != nil {
+		return m.PartitionTags
+	}
+	return nil
+}
+
+type Segment struct {
+	SegmentId            uint64   `protobuf:"varint,1,opt,name=segment_id,json=segmentId,proto3" json:"segment_id,omitempty"`
+	CollectionId         uint64   `protobuf:"varint,2,opt,name=collection_id,json=collectionId,proto3" json:"collection_id,omitempty"`
+	PartitionTag         string   `protobuf:"bytes,3,opt,name=partition_tag,json=partitionTag,proto3" json:"partition_tag,omitempty"`
+	ChannelStart         int32    `protobuf:"varint,4,opt,name=channel_start,json=channelStart,proto3" json:"channel_start,omitempty"`
+	ChannelEnd           int32    `protobuf:"varint,5,opt,name=channel_end,json=channelEnd,proto3" json:"channel_end,omitempty"`
+	OpenTimestamp        uint64   `protobuf:"varint,6,opt,name=open_timestamp,json=openTimestamp,proto3" json:"open_timestamp,omitempty"`
+	CloseTimestamp       uint64   `protobuf:"varint,7,opt,name=close_timestamp,json=closeTimestamp,proto3" json:"close_timestamp,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Segment) Reset()         { *m = Segment{} }
+func (m *Segment) String() string { return proto.CompactTextString(m) }
+func (*Segment) ProtoMessage()    {}
+func (*Segment) Descriptor() ([]byte, []int) {
+	return fileDescriptor_64c7f42561e95429, []int{1}
+}
+
+func (m *Segment) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Segment.Unmarshal(m, b)
+}
+func (m *Segment) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Segment.Marshal(b, m, deterministic)
+}
+func (m *Segment) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Segment.Merge(m, src)
+}
+func (m *Segment) XXX_Size() int {
+	return xxx_messageInfo_Segment.Size(m)
+}
+func (m *Segment) XXX_DiscardUnknown() {
+	xxx_messageInfo_Segment.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Segment proto.InternalMessageInfo
+
+func (m *Segment) GetSegmentId() uint64 {
+	if m != nil {
+		return m.SegmentId
+	}
+	return 0
+}
+
+func (m *Segment) GetCollectionId() uint64 {
+	if m != nil {
+		return m.CollectionId
+	}
+	return 0
+}
+
+func (m *Segment) GetPartitionTag() string {
+	if m != nil {
+		return m.PartitionTag
+	}
+	return ""
+}
+
+func (m *Segment) GetChannelStart() int32 {
+	if m != nil {
+		return m.ChannelStart
+	}
+	return 0
+}
+
+func (m *Segment) GetChannelEnd() int32 {
+	if m != nil {
+		return m.ChannelEnd
+	}
+	return 0
+}
+
+func (m *Segment) GetOpenTimestamp() uint64 {
+	if m != nil {
+		return m.OpenTimestamp
+	}
+	return 0
+}
+
+func (m *Segment) GetCloseTimestamp() uint64 {
+	if m != nil {
+		return m.CloseTimestamp
+	}
+	return 0
+}
+
+type SegmentStat struct {
+	SegmentId            uint64   `protobuf:"varint,1,opt,name=segment_id,json=segmentId,proto3" json:"segment_id,omitempty"`
+	MemorySize           uint64   `protobuf:"varint,2,opt,name=memory_size,json=memorySize,proto3" json:"memory_size,omitempty"`
+	MemoryRate           float32  `protobuf:"fixed32,3,opt,name=memory_rate,json=memoryRate,proto3" json:"memory_rate,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SegmentStat) Reset()         { *m = SegmentStat{} }
+func (m *SegmentStat) String() string { return proto.CompactTextString(m) }
+func (*SegmentStat) ProtoMessage()    {}
+func (*SegmentStat) Descriptor() ([]byte, []int) {
+	return fileDescriptor_64c7f42561e95429, []int{2}
+}
+
+func (m *SegmentStat) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SegmentStat.Unmarshal(m, b)
+}
+func (m *SegmentStat) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SegmentStat.Marshal(b, m, deterministic)
+}
+func (m *SegmentStat) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SegmentStat.Merge(m, src)
+}
+func (m *SegmentStat) XXX_Size() int {
+	return xxx_messageInfo_SegmentStat.Size(m)
+}
+func (m *SegmentStat) XXX_DiscardUnknown() {
+	xxx_messageInfo_SegmentStat.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SegmentStat proto.InternalMessageInfo
+
+func (m *SegmentStat) GetSegmentId() uint64 {
+	if m != nil {
+		return m.SegmentId
+	}
+	return 0
+}
+
+func (m *SegmentStat) GetMemorySize() uint64 {
+	if m != nil {
+		return m.MemorySize
+	}
+	return 0
+}
+
+func (m *SegmentStat) GetMemoryRate() float32 {
+	if m != nil {
+		return m.MemoryRate
+	}
+	return 0
+}
+
+func init() {
+	proto.RegisterType((*Collection)(nil), "masterpb.Collection")
+	proto.RegisterType((*Segment)(nil), "masterpb.Segment")
+	proto.RegisterType((*SegmentStat)(nil), "masterpb.SegmentStat")
+}
+
+func init() {
+	proto.RegisterFile("pkg/master/grpc/master/master.proto", fileDescriptor_64c7f42561e95429)
+}
+
+var fileDescriptor_64c7f42561e95429 = []byte{
+	// 447 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x84, 0x92, 0xcf, 0x6e, 0xd3, 0x40,
+	0x10, 0xc6, 0x89, 0x93, 0xb8, 0x64, 0xf2, 0x07, 0xb4, 0x70, 0xb0, 0x2a, 0xa1, 0x5a, 0xa9, 0x2a,
+	0x22, 0x21, 0xd9, 0xa5, 0x1c, 0x38, 0x22, 0x51, 0x71, 0xe8, 0xa1, 0x17, 0x3b, 0x27, 0x2e, 0xd6,
+	0xc6, 0x1e, 0x39, 0x2b, 0xbc, 0xeb, 0x95, 0x77, 0x52, 0x89, 0x3c, 0x01, 0x4f, 0xc6, 0x73, 0x21,
+	0x8f, 0x9d, 0x34, 0x05, 0xa4, 0x9e, 0x76, 0xfd, 0xf9, 0xb7, 0x33, 0x3b, 0xdf, 0x7e, 0x70, 0x69,
+	0x7f, 0x94, 0xb1, 0x96, 0x8e, 0xb0, 0x89, 0xcb, 0xc6, 0xe6, 0x87, 0x7d, 0xb7, 0x44, 0xb6, 0xa9,
+	0xa9, 0x16, 0x2f, 0xbb, 0x2f, 0xbb, 0x39, 0xbf, 0xfa, 0x07, 0x47, 0xe7, 0x64, 0x89, 0x87, 0xb5,
+	0x3b, 0xb0, 0xfc, 0x3d, 0x00, 0xb8, 0xad, 0xab, 0x0a, 0x73, 0x52, 0xb5, 0x11, 0x0b, 0xf0, 0x54,
+	0x11, 0x0c, 0xc2, 0xc1, 0x6a, 0x94, 0x78, 0xaa, 0x10, 0x02, 0x46, 0x46, 0x6a, 0x0c, 0xbc, 0x70,
+	0xb0, 0x9a, 0x24, 0xbc, 0x17, 0x1f, 0xc0, 0x77, 0xf9, 0x16, 0xb5, 0x0c, 0x86, 0xe1, 0x60, 0x35,
+	0xbd, 0x79, 0x13, 0x69, 0x55, 0x3d, 0xec, 0x5c, 0xd4, 0xb6, 0x89, 0x52, 0xfe, 0x95, 0xf4, 0x88,
+	0xb8, 0x80, 0x69, 0xde, 0xa0, 0x24, 0xcc, 0x48, 0x69, 0x0c, 0x46, 0x5c, 0x19, 0x3a, 0x69, 0xad,
+	0x34, 0xb6, 0x80, 0xc3, 0x52, 0xa3, 0xa1, 0x4c, 0x15, 0x2e, 0x18, 0x87, 0xc3, 0x16, 0xe8, 0xa5,
+	0xbb, 0xc2, 0x89, 0x2b, 0x58, 0x58, 0xd9, 0x90, 0x6a, 0xef, 0x97, 0x91, 0x2c, 0x5d, 0xe0, 0x87,
+	0xc3, 0xd5, 0x24, 0x99, 0x1f, 0xd5, 0xb5, 0x2c, 0xdd, 0xf2, 0x97, 0x07, 0x67, 0x69, 0x77, 0x4a,
+	0xbc, 0x03, 0x78, 0xac, 0xd9, 0x4f, 0x33, 0x39, 0x96, 0x14, 0x97, 0x30, 0xcf, 0x8f, 0x23, 0xb7,
+	0x84, 0xc7, 0xc4, 0xec, 0x51, 0xec, 0xa0, 0x27, 0x6d, 0x79, 0xd8, 0x49, 0x32, 0x3b, 0xed, 0xca,
+	0x95, 0xb6, 0xd2, 0x18, 0xac, 0x32, 0x47, 0xb2, 0x21, 0x9e, 0x6f, 0x9c, 0xcc, 0x7a, 0x31, 0x6d,
+	0x35, 0xb6, 0xa0, 0x87, 0xd0, 0x14, 0xc1, 0x98, 0x11, 0xe8, 0xa5, 0x6f, 0xa6, 0x68, 0x27, 0xac,
+	0x2d, 0x1a, 0x76, 0xc8, 0x91, 0xd4, 0x36, 0xf0, 0xf9, 0x42, 0xf3, 0x56, 0x5d, 0x1f, 0x44, 0xf1,
+	0x1e, 0x5e, 0xe5, 0x55, 0xed, 0xf0, 0x84, 0x3b, 0x63, 0x6e, 0xc1, 0xf2, 0x11, 0x5c, 0x1a, 0x98,
+	0xf6, 0x4e, 0xa4, 0x24, 0x9f, 0x75, 0xe3, 0x02, 0xa6, 0x1a, 0x75, 0xdd, 0xfc, 0xcc, 0x9c, 0xda,
+	0x63, 0xef, 0x05, 0x74, 0x52, 0xaa, 0xf6, 0x78, 0x02, 0x34, 0x92, 0x90, 0x7d, 0xf0, 0x0e, 0x40,
+	0x22, 0x09, 0x6f, 0xee, 0xc0, 0xbf, 0xe7, 0xa0, 0x89, 0x2f, 0xf0, 0xfa, 0x96, 0x9f, 0xf6, 0x24,
+	0x52, 0x6f, 0x9f, 0xc4, 0xe3, 0x5e, 0x5a, 0xab, 0x4c, 0x79, 0xfe, 0x57, 0x68, 0x48, 0xd2, 0xce,
+	0x2d, 0x5f, 0x7c, 0xfd, 0xf8, 0x3d, 0x2e, 0x15, 0x6d, 0x77, 0x9b, 0x28, 0xaf, 0x75, 0x9c, 0xef,
+	0xdd, 0xf5, 0xf5, 0xe7, 0xd8, 0xed, 0x1e, 0x2a, 0xa5, 0xe3, 0xff, 0xe7, 0x7f, 0xe3, 0x73, 0x90,
+	0x3f, 0xfd, 0x09, 0x00, 0x00, 0xff, 0xff, 0xf9, 0x1d, 0xf9, 0x37, 0x20, 0x03, 0x00, 0x00,
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion4
+
+// MasterClient is the client API for Master service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
+type MasterClient interface {
+	CreateCollection(ctx context.Context, in *message.Mapping, opts ...grpc.CallOption) (*message.Status, error)
+}
+
+type masterClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewMasterClient(cc *grpc.ClientConn) MasterClient {
+	return &masterClient{cc}
+}
+
+func (c *masterClient) CreateCollection(ctx context.Context, in *message.Mapping, opts ...grpc.CallOption) (*message.Status, error) {
+	out := new(message.Status)
+	err := c.cc.Invoke(ctx, "/masterpb.Master/CreateCollection", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// MasterServer is the server API for Master service.
+type MasterServer interface {
+	CreateCollection(context.Context, *message.Mapping) (*message.Status, error)
+}
+
+// UnimplementedMasterServer can be embedded to have forward compatible implementations.
+type UnimplementedMasterServer struct {
+}
+
+func (*UnimplementedMasterServer) CreateCollection(ctx context.Context, req *message.Mapping) (*message.Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CreateCollection not implemented")
+}
+
+func RegisterMasterServer(s *grpc.Server, srv MasterServer) {
+	s.RegisterService(&_Master_serviceDesc, srv)
+}
+
+func _Master_CreateCollection_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(message.Mapping)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MasterServer).CreateCollection(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/masterpb.Master/CreateCollection",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MasterServer).CreateCollection(ctx, req.(*message.Mapping))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _Master_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "masterpb.Master",
+	HandlerType: (*MasterServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "CreateCollection",
+			Handler:    _Master_CreateCollection_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "pkg/master/grpc/master/master.proto",
+}
diff --git a/pkg/master/grpc/master/master.proto b/pkg/master/grpc/master/master.proto
new file mode 100644
index 0000000000..1c5d3408b1
--- /dev/null
+++ b/pkg/master/grpc/master/master.proto
@@ -0,0 +1,36 @@
+syntax = "proto3";
+
+package masterpb;
+
+option go_package="github.com/czs007/suvlim/pkg/master/grpc/master";
+
+import "pkg/master/grpc/message/message.proto";
+
+message Collection {
+  uint64 id=1;
+  string name=2;
+  milvus.grpc.Schema schema=3;
+  uint64 create_time=4;
+  repeated uint64 segment_ids=5;
+  repeated string partition_tags=6;
+}
+
+message Segment {
+  uint64 segment_id=1;
+  uint64 collection_id =2;
+  string partition_tag=3;
+  int32 channel_start=4;
+  int32 channel_end=5;
+  uint64 open_timestamp=6;
+  uint64 close_timestamp=7;
+}
+
+message SegmentStat {
+  uint64 segment_id=1;
+  uint64 memory_size=2;
+  float memory_rate=3;
+}
+
+service Master {
+  rpc CreateCollection(milvus.grpc.Mapping) returns (milvus.grpc.Status){}
+}
\ No newline at end of file
diff --git a/pkg/message/message.pb.go b/pkg/master/grpc/message/message.pb.go
similarity index 59%
rename from pkg/message/message.pb.go
rename to pkg/master/grpc/message/message.pb.go
index f16aa2288c..edac756a54 100644
--- a/pkg/message/message.pb.go
+++ b/pkg/master/grpc/message/message.pb.go
@@ -1,11 +1,15 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
-// source: message.proto
+// source: pkg/master/grpc/message/message.proto
 
-package msgpb
+package message
 
 import (
+	context "context"
 	fmt "fmt"
 	proto "github.com/golang/protobuf/proto"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
 	math "math"
 )
 
@@ -108,7 +112,7 @@ func (x ErrorCode) String() string {
 }
 
 func (ErrorCode) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{0}
+	return fileDescriptor_0802b3a25fb57244, []int{0}
 }
 
 //*
@@ -162,7 +166,7 @@ func (x DataType) String() string {
 }
 
 func (DataType) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{1}
+	return fileDescriptor_0802b3a25fb57244, []int{1}
 }
 
 type CompareOperator int32
@@ -199,7 +203,7 @@ func (x CompareOperator) String() string {
 }
 
 func (CompareOperator) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{2}
+	return fileDescriptor_0802b3a25fb57244, []int{2}
 }
 
 type Occur int32
@@ -230,7 +234,7 @@ func (x Occur) String() string {
 }
 
 func (Occur) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{3}
+	return fileDescriptor_0802b3a25fb57244, []int{3}
 }
 
 ////////////////////pulsar//////////////////////////////////////
@@ -256,7 +260,7 @@ func (x OpType) String() string {
 }
 
 func (OpType) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{4}
+	return fileDescriptor_0802b3a25fb57244, []int{4}
 }
 
 type SyncType int32
@@ -281,7 +285,7 @@ func (x SyncType) String() string {
 }
 
 func (SyncType) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{5}
+	return fileDescriptor_0802b3a25fb57244, []int{5}
 }
 
 type Status struct {
@@ -296,7 +300,7 @@ func (m *Status) Reset()         { *m = Status{} }
 func (m *Status) String() string { return proto.CompactTextString(m) }
 func (*Status) ProtoMessage()    {}
 func (*Status) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{0}
+	return fileDescriptor_0802b3a25fb57244, []int{0}
 }
 
 func (m *Status) XXX_Unmarshal(b []byte) error {
@@ -345,7 +349,7 @@ func (m *KeyValuePair) Reset()         { *m = KeyValuePair{} }
 func (m *KeyValuePair) String() string { return proto.CompactTextString(m) }
 func (*KeyValuePair) ProtoMessage()    {}
 func (*KeyValuePair) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{1}
+	return fileDescriptor_0802b3a25fb57244, []int{1}
 }
 
 func (m *KeyValuePair) XXX_Unmarshal(b []byte) error {
@@ -393,7 +397,7 @@ func (m *CollectionName) Reset()         { *m = CollectionName{} }
 func (m *CollectionName) String() string { return proto.CompactTextString(m) }
 func (*CollectionName) ProtoMessage()    {}
 func (*CollectionName) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{2}
+	return fileDescriptor_0802b3a25fb57244, []int{2}
 }
 
 func (m *CollectionName) XXX_Unmarshal(b []byte) error {
@@ -435,7 +439,7 @@ func (m *CollectionNameList) Reset()         { *m = CollectionNameList{} }
 func (m *CollectionNameList) String() string { return proto.CompactTextString(m) }
 func (*CollectionNameList) ProtoMessage()    {}
 func (*CollectionNameList) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{3}
+	return fileDescriptor_0802b3a25fb57244, []int{3}
 }
 
 func (m *CollectionNameList) XXX_Unmarshal(b []byte) error {
@@ -484,7 +488,7 @@ func (m *FieldName) Reset()         { *m = FieldName{} }
 func (m *FieldName) String() string { return proto.CompactTextString(m) }
 func (*FieldName) ProtoMessage()    {}
 func (*FieldName) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{4}
+	return fileDescriptor_0802b3a25fb57244, []int{4}
 }
 
 func (m *FieldName) XXX_Unmarshal(b []byte) error {
@@ -541,7 +545,7 @@ func (m *Mapping) Reset()         { *m = Mapping{} }
 func (m *Mapping) String() string { return proto.CompactTextString(m) }
 func (*Mapping) ProtoMessage()    {}
 func (*Mapping) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{5}
+	return fileDescriptor_0802b3a25fb57244, []int{5}
 }
 
 func (m *Mapping) XXX_Unmarshal(b []byte) error {
@@ -604,7 +608,7 @@ func (m *MappingList) Reset()         { *m = MappingList{} }
 func (m *MappingList) String() string { return proto.CompactTextString(m) }
 func (*MappingList) ProtoMessage()    {}
 func (*MappingList) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{6}
+	return fileDescriptor_0802b3a25fb57244, []int{6}
 }
 
 func (m *MappingList) XXX_Unmarshal(b []byte) error {
@@ -653,7 +657,7 @@ func (m *PartitionParam) Reset()         { *m = PartitionParam{} }
 func (m *PartitionParam) String() string { return proto.CompactTextString(m) }
 func (*PartitionParam) ProtoMessage()    {}
 func (*PartitionParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{7}
+	return fileDescriptor_0802b3a25fb57244, []int{7}
 }
 
 func (m *PartitionParam) XXX_Unmarshal(b []byte) error {
@@ -702,7 +706,7 @@ func (m *PartitionList) Reset()         { *m = PartitionList{} }
 func (m *PartitionList) String() string { return proto.CompactTextString(m) }
 func (*PartitionList) ProtoMessage()    {}
 func (*PartitionList) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{8}
+	return fileDescriptor_0802b3a25fb57244, []int{8}
 }
 
 func (m *PartitionList) XXX_Unmarshal(b []byte) error {
@@ -751,7 +755,7 @@ func (m *VectorRowRecord) Reset()         { *m = VectorRowRecord{} }
 func (m *VectorRowRecord) String() string { return proto.CompactTextString(m) }
 func (*VectorRowRecord) ProtoMessage()    {}
 func (*VectorRowRecord) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{9}
+	return fileDescriptor_0802b3a25fb57244, []int{9}
 }
 
 func (m *VectorRowRecord) XXX_Unmarshal(b []byte) error {
@@ -798,7 +802,7 @@ func (m *EntityIds) Reset()         { *m = EntityIds{} }
 func (m *EntityIds) String() string { return proto.CompactTextString(m) }
 func (*EntityIds) ProtoMessage()    {}
 func (*EntityIds) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{10}
+	return fileDescriptor_0802b3a25fb57244, []int{10}
 }
 
 func (m *EntityIds) XXX_Unmarshal(b []byte) error {
@@ -844,7 +848,7 @@ func (m *VectorRecord) Reset()         { *m = VectorRecord{} }
 func (m *VectorRecord) String() string { return proto.CompactTextString(m) }
 func (*VectorRecord) ProtoMessage()    {}
 func (*VectorRecord) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{11}
+	return fileDescriptor_0802b3a25fb57244, []int{11}
 }
 
 func (m *VectorRecord) XXX_Unmarshal(b []byte) error {
@@ -884,7 +888,7 @@ func (m *VectorParam) Reset()         { *m = VectorParam{} }
 func (m *VectorParam) String() string { return proto.CompactTextString(m) }
 func (*VectorParam) ProtoMessage()    {}
 func (*VectorParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{12}
+	return fileDescriptor_0802b3a25fb57244, []int{12}
 }
 
 func (m *VectorParam) XXX_Unmarshal(b []byte) error {
@@ -934,7 +938,7 @@ func (m *FieldMeta) Reset()         { *m = FieldMeta{} }
 func (m *FieldMeta) String() string { return proto.CompactTextString(m) }
 func (*FieldMeta) ProtoMessage()    {}
 func (*FieldMeta) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{13}
+	return fileDescriptor_0802b3a25fb57244, []int{13}
 }
 
 func (m *FieldMeta) XXX_Unmarshal(b []byte) error {
@@ -987,7 +991,7 @@ func (m *Schema) Reset()         { *m = Schema{} }
 func (m *Schema) String() string { return proto.CompactTextString(m) }
 func (*Schema) ProtoMessage()    {}
 func (*Schema) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{14}
+	return fileDescriptor_0802b3a25fb57244, []int{14}
 }
 
 func (m *Schema) XXX_Unmarshal(b []byte) error {
@@ -1026,7 +1030,7 @@ func (m *RowData) Reset()         { *m = RowData{} }
 func (m *RowData) String() string { return proto.CompactTextString(m) }
 func (*RowData) ProtoMessage()    {}
 func (*RowData) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{15}
+	return fileDescriptor_0802b3a25fb57244, []int{15}
 }
 
 func (m *RowData) XXX_Unmarshal(b []byte) error {
@@ -1071,7 +1075,7 @@ func (m *InsertParam) Reset()         { *m = InsertParam{} }
 func (m *InsertParam) String() string { return proto.CompactTextString(m) }
 func (*InsertParam) ProtoMessage()    {}
 func (*InsertParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{16}
+	return fileDescriptor_0802b3a25fb57244, []int{16}
 }
 
 func (m *InsertParam) XXX_Unmarshal(b []byte) error {
@@ -1149,7 +1153,7 @@ func (m *SearchParam) Reset()         { *m = SearchParam{} }
 func (m *SearchParam) String() string { return proto.CompactTextString(m) }
 func (*SearchParam) ProtoMessage()    {}
 func (*SearchParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{17}
+	return fileDescriptor_0802b3a25fb57244, []int{17}
 }
 
 func (m *SearchParam) XXX_Unmarshal(b []byte) error {
@@ -1217,7 +1221,7 @@ func (m *SearchInSegmentParam) Reset()         { *m = SearchInSegmentParam{} }
 func (m *SearchInSegmentParam) String() string { return proto.CompactTextString(m) }
 func (*SearchInSegmentParam) ProtoMessage()    {}
 func (*SearchInSegmentParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{18}
+	return fileDescriptor_0802b3a25fb57244, []int{18}
 }
 
 func (m *SearchInSegmentParam) XXX_Unmarshal(b []byte) error {
@@ -1266,7 +1270,7 @@ func (m *Entities) Reset()         { *m = Entities{} }
 func (m *Entities) String() string { return proto.CompactTextString(m) }
 func (*Entities) ProtoMessage()    {}
 func (*Entities) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{19}
+	return fileDescriptor_0802b3a25fb57244, []int{19}
 }
 
 func (m *Entities) XXX_Unmarshal(b []byte) error {
@@ -1335,7 +1339,7 @@ func (m *QueryResult) Reset()         { *m = QueryResult{} }
 func (m *QueryResult) String() string { return proto.CompactTextString(m) }
 func (*QueryResult) ProtoMessage()    {}
 func (*QueryResult) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{20}
+	return fileDescriptor_0802b3a25fb57244, []int{20}
 }
 
 func (m *QueryResult) XXX_Unmarshal(b []byte) error {
@@ -1426,7 +1430,7 @@ func (m *StringReply) Reset()         { *m = StringReply{} }
 func (m *StringReply) String() string { return proto.CompactTextString(m) }
 func (*StringReply) ProtoMessage()    {}
 func (*StringReply) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{21}
+	return fileDescriptor_0802b3a25fb57244, []int{21}
 }
 
 func (m *StringReply) XXX_Unmarshal(b []byte) error {
@@ -1475,7 +1479,7 @@ func (m *BoolReply) Reset()         { *m = BoolReply{} }
 func (m *BoolReply) String() string { return proto.CompactTextString(m) }
 func (*BoolReply) ProtoMessage()    {}
 func (*BoolReply) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{22}
+	return fileDescriptor_0802b3a25fb57244, []int{22}
 }
 
 func (m *BoolReply) XXX_Unmarshal(b []byte) error {
@@ -1524,7 +1528,7 @@ func (m *CollectionRowCount) Reset()         { *m = CollectionRowCount{} }
 func (m *CollectionRowCount) String() string { return proto.CompactTextString(m) }
 func (*CollectionRowCount) ProtoMessage()    {}
 func (*CollectionRowCount) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{23}
+	return fileDescriptor_0802b3a25fb57244, []int{23}
 }
 
 func (m *CollectionRowCount) XXX_Unmarshal(b []byte) error {
@@ -1572,7 +1576,7 @@ func (m *Command) Reset()         { *m = Command{} }
 func (m *Command) String() string { return proto.CompactTextString(m) }
 func (*Command) ProtoMessage()    {}
 func (*Command) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{24}
+	return fileDescriptor_0802b3a25fb57244, []int{24}
 }
 
 func (m *Command) XXX_Unmarshal(b []byte) error {
@@ -1629,7 +1633,7 @@ func (m *IndexParam) Reset()         { *m = IndexParam{} }
 func (m *IndexParam) String() string { return proto.CompactTextString(m) }
 func (*IndexParam) ProtoMessage()    {}
 func (*IndexParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{25}
+	return fileDescriptor_0802b3a25fb57244, []int{25}
 }
 
 func (m *IndexParam) XXX_Unmarshal(b []byte) error {
@@ -1698,7 +1702,7 @@ func (m *FlushParam) Reset()         { *m = FlushParam{} }
 func (m *FlushParam) String() string { return proto.CompactTextString(m) }
 func (*FlushParam) ProtoMessage()    {}
 func (*FlushParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{26}
+	return fileDescriptor_0802b3a25fb57244, []int{26}
 }
 
 func (m *FlushParam) XXX_Unmarshal(b []byte) error {
@@ -1740,7 +1744,7 @@ func (m *CompactParam) Reset()         { *m = CompactParam{} }
 func (m *CompactParam) String() string { return proto.CompactTextString(m) }
 func (*CompactParam) ProtoMessage()    {}
 func (*CompactParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{27}
+	return fileDescriptor_0802b3a25fb57244, []int{27}
 }
 
 func (m *CompactParam) XXX_Unmarshal(b []byte) error {
@@ -1789,7 +1793,7 @@ func (m *DeleteByIDParam) Reset()         { *m = DeleteByIDParam{} }
 func (m *DeleteByIDParam) String() string { return proto.CompactTextString(m) }
 func (*DeleteByIDParam) ProtoMessage()    {}
 func (*DeleteByIDParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{28}
+	return fileDescriptor_0802b3a25fb57244, []int{28}
 }
 
 func (m *DeleteByIDParam) XXX_Unmarshal(b []byte) error {
@@ -1867,7 +1871,7 @@ func (m *CollectionInfo) Reset()         { *m = CollectionInfo{} }
 func (m *CollectionInfo) String() string { return proto.CompactTextString(m) }
 func (*CollectionInfo) ProtoMessage()    {}
 func (*CollectionInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{29}
+	return fileDescriptor_0802b3a25fb57244, []int{29}
 }
 
 func (m *CollectionInfo) XXX_Unmarshal(b []byte) error {
@@ -1916,7 +1920,7 @@ func (m *GetEntityIDsParam) Reset()         { *m = GetEntityIDsParam{} }
 func (m *GetEntityIDsParam) String() string { return proto.CompactTextString(m) }
 func (*GetEntityIDsParam) ProtoMessage()    {}
 func (*GetEntityIDsParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{30}
+	return fileDescriptor_0802b3a25fb57244, []int{30}
 }
 
 func (m *GetEntityIDsParam) XXX_Unmarshal(b []byte) error {
@@ -1966,7 +1970,7 @@ func (m *EntityIdentity) Reset()         { *m = EntityIdentity{} }
 func (m *EntityIdentity) String() string { return proto.CompactTextString(m) }
 func (*EntityIdentity) ProtoMessage()    {}
 func (*EntityIdentity) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{31}
+	return fileDescriptor_0802b3a25fb57244, []int{31}
 }
 
 func (m *EntityIdentity) XXX_Unmarshal(b []byte) error {
@@ -2021,7 +2025,7 @@ func (m *VectorFieldParam) Reset()         { *m = VectorFieldParam{} }
 func (m *VectorFieldParam) String() string { return proto.CompactTextString(m) }
 func (*VectorFieldParam) ProtoMessage()    {}
 func (*VectorFieldParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{32}
+	return fileDescriptor_0802b3a25fb57244, []int{32}
 }
 
 func (m *VectorFieldParam) XXX_Unmarshal(b []byte) error {
@@ -2065,7 +2069,7 @@ func (m *FieldType) Reset()         { *m = FieldType{} }
 func (m *FieldType) String() string { return proto.CompactTextString(m) }
 func (*FieldType) ProtoMessage()    {}
 func (*FieldType) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{33}
+	return fileDescriptor_0802b3a25fb57244, []int{33}
 }
 
 func (m *FieldType) XXX_Unmarshal(b []byte) error {
@@ -2148,7 +2152,7 @@ func (m *FieldParam) Reset()         { *m = FieldParam{} }
 func (m *FieldParam) String() string { return proto.CompactTextString(m) }
 func (*FieldParam) ProtoMessage()    {}
 func (*FieldParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{34}
+	return fileDescriptor_0802b3a25fb57244, []int{34}
 }
 
 func (m *FieldParam) XXX_Unmarshal(b []byte) error {
@@ -2217,7 +2221,7 @@ func (m *VectorFieldRecord) Reset()         { *m = VectorFieldRecord{} }
 func (m *VectorFieldRecord) String() string { return proto.CompactTextString(m) }
 func (*VectorFieldRecord) ProtoMessage()    {}
 func (*VectorFieldRecord) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{35}
+	return fileDescriptor_0802b3a25fb57244, []int{35}
 }
 
 func (m *VectorFieldRecord) XXX_Unmarshal(b []byte) error {
@@ -2261,7 +2265,7 @@ func (m *TermQuery) Reset()         { *m = TermQuery{} }
 func (m *TermQuery) String() string { return proto.CompactTextString(m) }
 func (*TermQuery) ProtoMessage()    {}
 func (*TermQuery) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{36}
+	return fileDescriptor_0802b3a25fb57244, []int{36}
 }
 
 func (m *TermQuery) XXX_Unmarshal(b []byte) error {
@@ -2336,7 +2340,7 @@ func (m *CompareExpr) Reset()         { *m = CompareExpr{} }
 func (m *CompareExpr) String() string { return proto.CompactTextString(m) }
 func (*CompareExpr) ProtoMessage()    {}
 func (*CompareExpr) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{37}
+	return fileDescriptor_0802b3a25fb57244, []int{37}
 }
 
 func (m *CompareExpr) XXX_Unmarshal(b []byte) error {
@@ -2385,7 +2389,7 @@ func (m *RangeQuery) Reset()         { *m = RangeQuery{} }
 func (m *RangeQuery) String() string { return proto.CompactTextString(m) }
 func (*RangeQuery) ProtoMessage()    {}
 func (*RangeQuery) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{38}
+	return fileDescriptor_0802b3a25fb57244, []int{38}
 }
 
 func (m *RangeQuery) XXX_Unmarshal(b []byte) error {
@@ -2449,7 +2453,7 @@ func (m *VectorQuery) Reset()         { *m = VectorQuery{} }
 func (m *VectorQuery) String() string { return proto.CompactTextString(m) }
 func (*VectorQuery) ProtoMessage()    {}
 func (*VectorQuery) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{39}
+	return fileDescriptor_0802b3a25fb57244, []int{39}
 }
 
 func (m *VectorQuery) XXX_Unmarshal(b []byte) error {
@@ -2517,7 +2521,7 @@ func (m *BooleanQuery) Reset()         { *m = BooleanQuery{} }
 func (m *BooleanQuery) String() string { return proto.CompactTextString(m) }
 func (*BooleanQuery) ProtoMessage()    {}
 func (*BooleanQuery) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{40}
+	return fileDescriptor_0802b3a25fb57244, []int{40}
 }
 
 func (m *BooleanQuery) XXX_Unmarshal(b []byte) error {
@@ -2568,7 +2572,7 @@ func (m *GeneralQuery) Reset()         { *m = GeneralQuery{} }
 func (m *GeneralQuery) String() string { return proto.CompactTextString(m) }
 func (*GeneralQuery) ProtoMessage()    {}
 func (*GeneralQuery) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{41}
+	return fileDescriptor_0802b3a25fb57244, []int{41}
 }
 
 func (m *GeneralQuery) XXX_Unmarshal(b []byte) error {
@@ -2676,7 +2680,7 @@ func (m *SearchParamPB) Reset()         { *m = SearchParamPB{} }
 func (m *SearchParamPB) String() string { return proto.CompactTextString(m) }
 func (*SearchParamPB) ProtoMessage()    {}
 func (*SearchParamPB) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{42}
+	return fileDescriptor_0802b3a25fb57244, []int{42}
 }
 
 func (m *SearchParamPB) XXX_Unmarshal(b []byte) error {
@@ -2745,7 +2749,7 @@ func (m *InsertOrDeleteMsg) Reset()         { *m = InsertOrDeleteMsg{} }
 func (m *InsertOrDeleteMsg) String() string { return proto.CompactTextString(m) }
 func (*InsertOrDeleteMsg) ProtoMessage()    {}
 func (*InsertOrDeleteMsg) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{43}
+	return fileDescriptor_0802b3a25fb57244, []int{43}
 }
 
 func (m *InsertOrDeleteMsg) XXX_Unmarshal(b []byte) error {
@@ -2844,8 +2848,6 @@ type SearchMsg struct {
 	Timestamp            uint64           `protobuf:"varint,5,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
 	ClientId             int64            `protobuf:"varint,6,opt,name=client_id,json=clientId,proto3" json:"client_id,omitempty"`
 	ExtraParams          []*KeyValuePair  `protobuf:"bytes,7,rep,name=extra_params,json=extraParams,proto3" json:"extra_params,omitempty"`
-	Json                 []string         `protobuf:"bytes,8,rep,name=json,proto3" json:"json,omitempty"`
-	Dsl                  string           `protobuf:"bytes,9,opt,name=dsl,proto3" json:"dsl,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}         `json:"-"`
 	XXX_unrecognized     []byte           `json:"-"`
 	XXX_sizecache        int32            `json:"-"`
@@ -2855,7 +2857,7 @@ func (m *SearchMsg) Reset()         { *m = SearchMsg{} }
 func (m *SearchMsg) String() string { return proto.CompactTextString(m) }
 func (*SearchMsg) ProtoMessage()    {}
 func (*SearchMsg) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{44}
+	return fileDescriptor_0802b3a25fb57244, []int{44}
 }
 
 func (m *SearchMsg) XXX_Unmarshal(b []byte) error {
@@ -2925,23 +2927,9 @@ func (m *SearchMsg) GetExtraParams() []*KeyValuePair {
 	return nil
 }
 
-func (m *SearchMsg) GetJson() []string {
-	if m != nil {
-		return m.Json
-	}
-	return nil
-}
-
-func (m *SearchMsg) GetDsl() string {
-	if m != nil {
-		return m.Dsl
-	}
-	return ""
-}
-
 type TimeSyncMsg struct {
 	Peer_Id              int64    `protobuf:"varint,1,opt,name=peer_Id,json=peerId,proto3" json:"peer_Id,omitempty"`
-	Timestamp            uint64   `protobuf:"varint,2,opt,name=Timestamp,json=timestamp,proto3" json:"Timestamp,omitempty"`
+	Timestamp            uint64   `protobuf:"varint,2,opt,name=Timestamp,proto3" json:"Timestamp,omitempty"`
 	SyncType             SyncType `protobuf:"varint,3,opt,name=sync_type,json=syncType,proto3,enum=milvus.grpc.SyncType" json:"sync_type,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
@@ -2952,7 +2940,7 @@ func (m *TimeSyncMsg) Reset()         { *m = TimeSyncMsg{} }
 func (m *TimeSyncMsg) String() string { return proto.CompactTextString(m) }
 func (*TimeSyncMsg) ProtoMessage()    {}
 func (*TimeSyncMsg) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{45}
+	return fileDescriptor_0802b3a25fb57244, []int{45}
 }
 
 func (m *TimeSyncMsg) XXX_Unmarshal(b []byte) error {
@@ -3007,7 +2995,7 @@ func (m *Key2SegMsg) Reset()         { *m = Key2SegMsg{} }
 func (m *Key2SegMsg) String() string { return proto.CompactTextString(m) }
 func (*Key2SegMsg) ProtoMessage()    {}
 func (*Key2SegMsg) Descriptor() ([]byte, []int) {
-	return fileDescriptor_33c57e4bae7b9afd, []int{46}
+	return fileDescriptor_0802b3a25fb57244, []int{46}
 }
 
 func (m *Key2SegMsg) XXX_Unmarshal(b []byte) error {
@@ -3105,188 +3093,1424 @@ func init() {
 	proto.RegisterType((*Key2SegMsg)(nil), "milvus.grpc.Key2SegMsg")
 }
 
-func init() { proto.RegisterFile("message.proto", fileDescriptor_33c57e4bae7b9afd) }
-
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+func init() {
+	proto.RegisterFile("pkg/master/grpc/message/message.proto", fileDescriptor_0802b3a25fb57244)
+}
+
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+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion4
+
+// MilvusServiceClient is the client API for MilvusService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
+type MilvusServiceClient interface {
+	//*
+	// @brief This method is used to create collection
+	//
+	// @param CollectionSchema, use to provide collection information to be created.
+	//
+	// @return Status
+	CreateCollection(ctx context.Context, in *Mapping, opts ...grpc.CallOption) (*Status, error)
+	//*
+	// @brief This method is used to test collection existence.
+	//
+	// @param CollectionName, collection name is going to be tested.
+	//
+	// @return BoolReply
+	HasCollection(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*BoolReply, error)
+	//*
+	// @brief This method is used to get collection schema.
+	//
+	// @param CollectionName, target collection name.
+	//
+	// @return CollectionSchema
+	DescribeCollection(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*Mapping, error)
+	//*
+	// @brief This method is used to get collection schema.
+	//
+	// @param CollectionName, target collection name.
+	//
+	// @return CollectionRowCount
+	CountCollection(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*CollectionRowCount, error)
+	//*
+	// @brief This method is used to list all collections.
+	//
+	// @param Command, dummy parameter.
+	//
+	// @return CollectionNameList
+	ShowCollections(ctx context.Context, in *Command, opts ...grpc.CallOption) (*CollectionNameList, error)
+	//*
+	// @brief This method is used to get collection detail information.
+	//
+	// @param CollectionName, target collection name.
+	//
+	// @return CollectionInfo
+	ShowCollectionInfo(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*CollectionInfo, error)
+	//*
+	// @brief This method is used to delete collection.
+	//
+	// @param CollectionName, collection name is going to be deleted.
+	//
+	// @return Status
+	DropCollection(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*Status, error)
+	//*
+	// @brief This method is used to build index by collection in sync mode.
+	//
+	// @param IndexParam, index paramters.
+	//
+	// @return Status
+	CreateIndex(ctx context.Context, in *IndexParam, opts ...grpc.CallOption) (*Status, error)
+	//*
+	// @brief This method is used to describe index
+	//
+	// @param IndexParam, target index.
+	//
+	// @return IndexParam
+	DescribeIndex(ctx context.Context, in *IndexParam, opts ...grpc.CallOption) (*IndexParam, error)
+	//*
+	// @brief This method is used to drop index
+	//
+	// @param IndexParam, target field. if the IndexParam.field_name is empty, will drop all index of the collection
+	//
+	// @return Status
+	DropIndex(ctx context.Context, in *IndexParam, opts ...grpc.CallOption) (*Status, error)
+	//*
+	// @brief This method is used to create partition
+	//
+	// @param PartitionParam, partition parameters.
+	//
+	// @return Status
+	CreatePartition(ctx context.Context, in *PartitionParam, opts ...grpc.CallOption) (*Status, error)
+	//*
+	// @brief This method is used to test partition existence.
+	//
+	// @param PartitionParam, target partition.
+	//
+	// @return BoolReply
+	HasPartition(ctx context.Context, in *PartitionParam, opts ...grpc.CallOption) (*BoolReply, error)
+	//*
+	// @brief This method is used to show partition information
+	//
+	// @param CollectionName, target collection name.
+	//
+	// @return PartitionList
+	ShowPartitions(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*PartitionList, error)
+	//*
+	// @brief This method is used to drop partition
+	//
+	// @param PartitionParam, target partition.
+	//
+	// @return Status
+	DropPartition(ctx context.Context, in *PartitionParam, opts ...grpc.CallOption) (*Status, error)
+	//*
+	// @brief This method is used to add vector array to collection.
+	//
+	// @param InsertParam, insert parameters.
+	//
+	// @return VectorIds
+	Insert(ctx context.Context, in *InsertParam, opts ...grpc.CallOption) (*EntityIds, error)
+	//*
+	// @brief This method is used to get entities data by id array.
+	//
+	// @param EntitiesIdentity, target entity id array.
+	//
+	// @return EntitiesData
+	GetEntityByID(ctx context.Context, in *EntityIdentity, opts ...grpc.CallOption) (*Entities, error)
+	//*
+	// @brief This method is used to get vector ids from a segment
+	//
+	// @param GetVectorIDsParam, target collection and segment
+	//
+	// @return VectorIds
+	GetEntityIDs(ctx context.Context, in *GetEntityIDsParam, opts ...grpc.CallOption) (*EntityIds, error)
+	//*
+	// @brief This method is used to query vector in collection.
+	//
+	// @param SearchParam, search parameters.
+	//
+	// @return KQueryResult
+	Search(ctx context.Context, in *SearchParam, opts ...grpc.CallOption) (*QueryResult, error)
+	//*
+	// @brief This method is used to query vector in specified files.
+	//
+	// @param SearchInSegmentParam, target segments to search.
+	//
+	// @return TopKQueryResult
+	SearchInSegment(ctx context.Context, in *SearchInSegmentParam, opts ...grpc.CallOption) (*QueryResult, error)
+	//*
+	// @brief This method is used to give the server status.
+	//
+	// @param Command, command string
+	//
+	// @return StringReply
+	Cmd(ctx context.Context, in *Command, opts ...grpc.CallOption) (*StringReply, error)
+	//*
+	// @brief This method is used to delete vector by id
+	//
+	// @param DeleteByIDParam, delete parameters.
+	//
+	// @return status
+	DeleteByID(ctx context.Context, in *DeleteByIDParam, opts ...grpc.CallOption) (*Status, error)
+	//*
+	// @brief This method is used to preload collection
+	//
+	// @param CollectionName, target collection name.
+	//
+	// @return Status
+	PreloadCollection(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*Status, error)
+	//*
+	// @brief This method is used to flush buffer into storage.
+	//
+	// @param FlushParam, flush parameters
+	//
+	// @return Status
+	Flush(ctx context.Context, in *FlushParam, opts ...grpc.CallOption) (*Status, error)
+	//*
+	// @brief This method is used to compact collection
+	//
+	// @param CompactParam, compact parameters
+	//
+	// @return Status
+	Compact(ctx context.Context, in *CompactParam, opts ...grpc.CallOption) (*Status, error)
+	SearchPB(ctx context.Context, in *SearchParamPB, opts ...grpc.CallOption) (*QueryResult, error)
+}
+
+type milvusServiceClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewMilvusServiceClient(cc *grpc.ClientConn) MilvusServiceClient {
+	return &milvusServiceClient{cc}
+}
+
+func (c *milvusServiceClient) CreateCollection(ctx context.Context, in *Mapping, opts ...grpc.CallOption) (*Status, error) {
+	out := new(Status)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/CreateCollection", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) HasCollection(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*BoolReply, error) {
+	out := new(BoolReply)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/HasCollection", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) DescribeCollection(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*Mapping, error) {
+	out := new(Mapping)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/DescribeCollection", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) CountCollection(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*CollectionRowCount, error) {
+	out := new(CollectionRowCount)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/CountCollection", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) ShowCollections(ctx context.Context, in *Command, opts ...grpc.CallOption) (*CollectionNameList, error) {
+	out := new(CollectionNameList)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/ShowCollections", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) ShowCollectionInfo(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*CollectionInfo, error) {
+	out := new(CollectionInfo)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/ShowCollectionInfo", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) DropCollection(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*Status, error) {
+	out := new(Status)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/DropCollection", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) CreateIndex(ctx context.Context, in *IndexParam, opts ...grpc.CallOption) (*Status, error) {
+	out := new(Status)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/CreateIndex", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) DescribeIndex(ctx context.Context, in *IndexParam, opts ...grpc.CallOption) (*IndexParam, error) {
+	out := new(IndexParam)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/DescribeIndex", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) DropIndex(ctx context.Context, in *IndexParam, opts ...grpc.CallOption) (*Status, error) {
+	out := new(Status)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/DropIndex", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) CreatePartition(ctx context.Context, in *PartitionParam, opts ...grpc.CallOption) (*Status, error) {
+	out := new(Status)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/CreatePartition", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) HasPartition(ctx context.Context, in *PartitionParam, opts ...grpc.CallOption) (*BoolReply, error) {
+	out := new(BoolReply)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/HasPartition", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) ShowPartitions(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*PartitionList, error) {
+	out := new(PartitionList)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/ShowPartitions", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) DropPartition(ctx context.Context, in *PartitionParam, opts ...grpc.CallOption) (*Status, error) {
+	out := new(Status)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/DropPartition", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) Insert(ctx context.Context, in *InsertParam, opts ...grpc.CallOption) (*EntityIds, error) {
+	out := new(EntityIds)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/Insert", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) GetEntityByID(ctx context.Context, in *EntityIdentity, opts ...grpc.CallOption) (*Entities, error) {
+	out := new(Entities)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/GetEntityByID", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) GetEntityIDs(ctx context.Context, in *GetEntityIDsParam, opts ...grpc.CallOption) (*EntityIds, error) {
+	out := new(EntityIds)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/GetEntityIDs", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) Search(ctx context.Context, in *SearchParam, opts ...grpc.CallOption) (*QueryResult, error) {
+	out := new(QueryResult)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/Search", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) SearchInSegment(ctx context.Context, in *SearchInSegmentParam, opts ...grpc.CallOption) (*QueryResult, error) {
+	out := new(QueryResult)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/SearchInSegment", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) Cmd(ctx context.Context, in *Command, opts ...grpc.CallOption) (*StringReply, error) {
+	out := new(StringReply)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/Cmd", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) DeleteByID(ctx context.Context, in *DeleteByIDParam, opts ...grpc.CallOption) (*Status, error) {
+	out := new(Status)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/DeleteByID", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) PreloadCollection(ctx context.Context, in *CollectionName, opts ...grpc.CallOption) (*Status, error) {
+	out := new(Status)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/PreloadCollection", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) Flush(ctx context.Context, in *FlushParam, opts ...grpc.CallOption) (*Status, error) {
+	out := new(Status)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/Flush", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) Compact(ctx context.Context, in *CompactParam, opts ...grpc.CallOption) (*Status, error) {
+	out := new(Status)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/Compact", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *milvusServiceClient) SearchPB(ctx context.Context, in *SearchParamPB, opts ...grpc.CallOption) (*QueryResult, error) {
+	out := new(QueryResult)
+	err := c.cc.Invoke(ctx, "/milvus.grpc.MilvusService/SearchPB", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// MilvusServiceServer is the server API for MilvusService service.
+type MilvusServiceServer interface {
+	//*
+	// @brief This method is used to create collection
+	//
+	// @param CollectionSchema, use to provide collection information to be created.
+	//
+	// @return Status
+	CreateCollection(context.Context, *Mapping) (*Status, error)
+	//*
+	// @brief This method is used to test collection existence.
+	//
+	// @param CollectionName, collection name is going to be tested.
+	//
+	// @return BoolReply
+	HasCollection(context.Context, *CollectionName) (*BoolReply, error)
+	//*
+	// @brief This method is used to get collection schema.
+	//
+	// @param CollectionName, target collection name.
+	//
+	// @return CollectionSchema
+	DescribeCollection(context.Context, *CollectionName) (*Mapping, error)
+	//*
+	// @brief This method is used to get collection schema.
+	//
+	// @param CollectionName, target collection name.
+	//
+	// @return CollectionRowCount
+	CountCollection(context.Context, *CollectionName) (*CollectionRowCount, error)
+	//*
+	// @brief This method is used to list all collections.
+	//
+	// @param Command, dummy parameter.
+	//
+	// @return CollectionNameList
+	ShowCollections(context.Context, *Command) (*CollectionNameList, error)
+	//*
+	// @brief This method is used to get collection detail information.
+	//
+	// @param CollectionName, target collection name.
+	//
+	// @return CollectionInfo
+	ShowCollectionInfo(context.Context, *CollectionName) (*CollectionInfo, error)
+	//*
+	// @brief This method is used to delete collection.
+	//
+	// @param CollectionName, collection name is going to be deleted.
+	//
+	// @return Status
+	DropCollection(context.Context, *CollectionName) (*Status, error)
+	//*
+	// @brief This method is used to build index by collection in sync mode.
+	//
+	// @param IndexParam, index paramters.
+	//
+	// @return Status
+	CreateIndex(context.Context, *IndexParam) (*Status, error)
+	//*
+	// @brief This method is used to describe index
+	//
+	// @param IndexParam, target index.
+	//
+	// @return IndexParam
+	DescribeIndex(context.Context, *IndexParam) (*IndexParam, error)
+	//*
+	// @brief This method is used to drop index
+	//
+	// @param IndexParam, target field. if the IndexParam.field_name is empty, will drop all index of the collection
+	//
+	// @return Status
+	DropIndex(context.Context, *IndexParam) (*Status, error)
+	//*
+	// @brief This method is used to create partition
+	//
+	// @param PartitionParam, partition parameters.
+	//
+	// @return Status
+	CreatePartition(context.Context, *PartitionParam) (*Status, error)
+	//*
+	// @brief This method is used to test partition existence.
+	//
+	// @param PartitionParam, target partition.
+	//
+	// @return BoolReply
+	HasPartition(context.Context, *PartitionParam) (*BoolReply, error)
+	//*
+	// @brief This method is used to show partition information
+	//
+	// @param CollectionName, target collection name.
+	//
+	// @return PartitionList
+	ShowPartitions(context.Context, *CollectionName) (*PartitionList, error)
+	//*
+	// @brief This method is used to drop partition
+	//
+	// @param PartitionParam, target partition.
+	//
+	// @return Status
+	DropPartition(context.Context, *PartitionParam) (*Status, error)
+	//*
+	// @brief This method is used to add vector array to collection.
+	//
+	// @param InsertParam, insert parameters.
+	//
+	// @return VectorIds
+	Insert(context.Context, *InsertParam) (*EntityIds, error)
+	//*
+	// @brief This method is used to get entities data by id array.
+	//
+	// @param EntitiesIdentity, target entity id array.
+	//
+	// @return EntitiesData
+	GetEntityByID(context.Context, *EntityIdentity) (*Entities, error)
+	//*
+	// @brief This method is used to get vector ids from a segment
+	//
+	// @param GetVectorIDsParam, target collection and segment
+	//
+	// @return VectorIds
+	GetEntityIDs(context.Context, *GetEntityIDsParam) (*EntityIds, error)
+	//*
+	// @brief This method is used to query vector in collection.
+	//
+	// @param SearchParam, search parameters.
+	//
+	// @return KQueryResult
+	Search(context.Context, *SearchParam) (*QueryResult, error)
+	//*
+	// @brief This method is used to query vector in specified files.
+	//
+	// @param SearchInSegmentParam, target segments to search.
+	//
+	// @return TopKQueryResult
+	SearchInSegment(context.Context, *SearchInSegmentParam) (*QueryResult, error)
+	//*
+	// @brief This method is used to give the server status.
+	//
+	// @param Command, command string
+	//
+	// @return StringReply
+	Cmd(context.Context, *Command) (*StringReply, error)
+	//*
+	// @brief This method is used to delete vector by id
+	//
+	// @param DeleteByIDParam, delete parameters.
+	//
+	// @return status
+	DeleteByID(context.Context, *DeleteByIDParam) (*Status, error)
+	//*
+	// @brief This method is used to preload collection
+	//
+	// @param CollectionName, target collection name.
+	//
+	// @return Status
+	PreloadCollection(context.Context, *CollectionName) (*Status, error)
+	//*
+	// @brief This method is used to flush buffer into storage.
+	//
+	// @param FlushParam, flush parameters
+	//
+	// @return Status
+	Flush(context.Context, *FlushParam) (*Status, error)
+	//*
+	// @brief This method is used to compact collection
+	//
+	// @param CompactParam, compact parameters
+	//
+	// @return Status
+	Compact(context.Context, *CompactParam) (*Status, error)
+	SearchPB(context.Context, *SearchParamPB) (*QueryResult, error)
+}
+
+// UnimplementedMilvusServiceServer can be embedded to have forward compatible implementations.
+type UnimplementedMilvusServiceServer struct {
+}
+
+func (*UnimplementedMilvusServiceServer) CreateCollection(ctx context.Context, req *Mapping) (*Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CreateCollection not implemented")
+}
+func (*UnimplementedMilvusServiceServer) HasCollection(ctx context.Context, req *CollectionName) (*BoolReply, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method HasCollection not implemented")
+}
+func (*UnimplementedMilvusServiceServer) DescribeCollection(ctx context.Context, req *CollectionName) (*Mapping, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method DescribeCollection not implemented")
+}
+func (*UnimplementedMilvusServiceServer) CountCollection(ctx context.Context, req *CollectionName) (*CollectionRowCount, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CountCollection not implemented")
+}
+func (*UnimplementedMilvusServiceServer) ShowCollections(ctx context.Context, req *Command) (*CollectionNameList, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ShowCollections not implemented")
+}
+func (*UnimplementedMilvusServiceServer) ShowCollectionInfo(ctx context.Context, req *CollectionName) (*CollectionInfo, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ShowCollectionInfo not implemented")
+}
+func (*UnimplementedMilvusServiceServer) DropCollection(ctx context.Context, req *CollectionName) (*Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method DropCollection not implemented")
+}
+func (*UnimplementedMilvusServiceServer) CreateIndex(ctx context.Context, req *IndexParam) (*Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CreateIndex not implemented")
+}
+func (*UnimplementedMilvusServiceServer) DescribeIndex(ctx context.Context, req *IndexParam) (*IndexParam, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method DescribeIndex not implemented")
+}
+func (*UnimplementedMilvusServiceServer) DropIndex(ctx context.Context, req *IndexParam) (*Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method DropIndex not implemented")
+}
+func (*UnimplementedMilvusServiceServer) CreatePartition(ctx context.Context, req *PartitionParam) (*Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CreatePartition not implemented")
+}
+func (*UnimplementedMilvusServiceServer) HasPartition(ctx context.Context, req *PartitionParam) (*BoolReply, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method HasPartition not implemented")
+}
+func (*UnimplementedMilvusServiceServer) ShowPartitions(ctx context.Context, req *CollectionName) (*PartitionList, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ShowPartitions not implemented")
+}
+func (*UnimplementedMilvusServiceServer) DropPartition(ctx context.Context, req *PartitionParam) (*Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method DropPartition not implemented")
+}
+func (*UnimplementedMilvusServiceServer) Insert(ctx context.Context, req *InsertParam) (*EntityIds, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Insert not implemented")
+}
+func (*UnimplementedMilvusServiceServer) GetEntityByID(ctx context.Context, req *EntityIdentity) (*Entities, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetEntityByID not implemented")
+}
+func (*UnimplementedMilvusServiceServer) GetEntityIDs(ctx context.Context, req *GetEntityIDsParam) (*EntityIds, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetEntityIDs not implemented")
+}
+func (*UnimplementedMilvusServiceServer) Search(ctx context.Context, req *SearchParam) (*QueryResult, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Search not implemented")
+}
+func (*UnimplementedMilvusServiceServer) SearchInSegment(ctx context.Context, req *SearchInSegmentParam) (*QueryResult, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method SearchInSegment not implemented")
+}
+func (*UnimplementedMilvusServiceServer) Cmd(ctx context.Context, req *Command) (*StringReply, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Cmd not implemented")
+}
+func (*UnimplementedMilvusServiceServer) DeleteByID(ctx context.Context, req *DeleteByIDParam) (*Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method DeleteByID not implemented")
+}
+func (*UnimplementedMilvusServiceServer) PreloadCollection(ctx context.Context, req *CollectionName) (*Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method PreloadCollection not implemented")
+}
+func (*UnimplementedMilvusServiceServer) Flush(ctx context.Context, req *FlushParam) (*Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Flush not implemented")
+}
+func (*UnimplementedMilvusServiceServer) Compact(ctx context.Context, req *CompactParam) (*Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Compact not implemented")
+}
+func (*UnimplementedMilvusServiceServer) SearchPB(ctx context.Context, req *SearchParamPB) (*QueryResult, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method SearchPB not implemented")
+}
+
+func RegisterMilvusServiceServer(s *grpc.Server, srv MilvusServiceServer) {
+	s.RegisterService(&_MilvusService_serviceDesc, srv)
+}
+
+func _MilvusService_CreateCollection_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(Mapping)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).CreateCollection(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/CreateCollection",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).CreateCollection(ctx, req.(*Mapping))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_HasCollection_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CollectionName)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).HasCollection(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/HasCollection",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).HasCollection(ctx, req.(*CollectionName))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_DescribeCollection_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CollectionName)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).DescribeCollection(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/DescribeCollection",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).DescribeCollection(ctx, req.(*CollectionName))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_CountCollection_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CollectionName)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).CountCollection(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/CountCollection",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).CountCollection(ctx, req.(*CollectionName))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_ShowCollections_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(Command)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).ShowCollections(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/ShowCollections",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).ShowCollections(ctx, req.(*Command))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_ShowCollectionInfo_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CollectionName)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).ShowCollectionInfo(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/ShowCollectionInfo",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).ShowCollectionInfo(ctx, req.(*CollectionName))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_DropCollection_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CollectionName)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).DropCollection(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/DropCollection",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).DropCollection(ctx, req.(*CollectionName))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_CreateIndex_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(IndexParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).CreateIndex(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/CreateIndex",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).CreateIndex(ctx, req.(*IndexParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_DescribeIndex_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(IndexParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).DescribeIndex(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/DescribeIndex",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).DescribeIndex(ctx, req.(*IndexParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_DropIndex_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(IndexParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).DropIndex(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/DropIndex",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).DropIndex(ctx, req.(*IndexParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_CreatePartition_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(PartitionParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).CreatePartition(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/CreatePartition",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).CreatePartition(ctx, req.(*PartitionParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_HasPartition_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(PartitionParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).HasPartition(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/HasPartition",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).HasPartition(ctx, req.(*PartitionParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_ShowPartitions_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CollectionName)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).ShowPartitions(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/ShowPartitions",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).ShowPartitions(ctx, req.(*CollectionName))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_DropPartition_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(PartitionParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).DropPartition(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/DropPartition",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).DropPartition(ctx, req.(*PartitionParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_Insert_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(InsertParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).Insert(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/Insert",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).Insert(ctx, req.(*InsertParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_GetEntityByID_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(EntityIdentity)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).GetEntityByID(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/GetEntityByID",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).GetEntityByID(ctx, req.(*EntityIdentity))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_GetEntityIDs_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetEntityIDsParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).GetEntityIDs(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/GetEntityIDs",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).GetEntityIDs(ctx, req.(*GetEntityIDsParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_Search_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(SearchParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).Search(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/Search",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).Search(ctx, req.(*SearchParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_SearchInSegment_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(SearchInSegmentParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).SearchInSegment(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/SearchInSegment",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).SearchInSegment(ctx, req.(*SearchInSegmentParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_Cmd_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(Command)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).Cmd(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/Cmd",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).Cmd(ctx, req.(*Command))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_DeleteByID_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DeleteByIDParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).DeleteByID(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/DeleteByID",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).DeleteByID(ctx, req.(*DeleteByIDParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_PreloadCollection_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CollectionName)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).PreloadCollection(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/PreloadCollection",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).PreloadCollection(ctx, req.(*CollectionName))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_Flush_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(FlushParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).Flush(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/Flush",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).Flush(ctx, req.(*FlushParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_Compact_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CompactParam)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).Compact(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/Compact",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).Compact(ctx, req.(*CompactParam))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _MilvusService_SearchPB_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(SearchParamPB)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MilvusServiceServer).SearchPB(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.grpc.MilvusService/SearchPB",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MilvusServiceServer).SearchPB(ctx, req.(*SearchParamPB))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _MilvusService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "milvus.grpc.MilvusService",
+	HandlerType: (*MilvusServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "CreateCollection",
+			Handler:    _MilvusService_CreateCollection_Handler,
+		},
+		{
+			MethodName: "HasCollection",
+			Handler:    _MilvusService_HasCollection_Handler,
+		},
+		{
+			MethodName: "DescribeCollection",
+			Handler:    _MilvusService_DescribeCollection_Handler,
+		},
+		{
+			MethodName: "CountCollection",
+			Handler:    _MilvusService_CountCollection_Handler,
+		},
+		{
+			MethodName: "ShowCollections",
+			Handler:    _MilvusService_ShowCollections_Handler,
+		},
+		{
+			MethodName: "ShowCollectionInfo",
+			Handler:    _MilvusService_ShowCollectionInfo_Handler,
+		},
+		{
+			MethodName: "DropCollection",
+			Handler:    _MilvusService_DropCollection_Handler,
+		},
+		{
+			MethodName: "CreateIndex",
+			Handler:    _MilvusService_CreateIndex_Handler,
+		},
+		{
+			MethodName: "DescribeIndex",
+			Handler:    _MilvusService_DescribeIndex_Handler,
+		},
+		{
+			MethodName: "DropIndex",
+			Handler:    _MilvusService_DropIndex_Handler,
+		},
+		{
+			MethodName: "CreatePartition",
+			Handler:    _MilvusService_CreatePartition_Handler,
+		},
+		{
+			MethodName: "HasPartition",
+			Handler:    _MilvusService_HasPartition_Handler,
+		},
+		{
+			MethodName: "ShowPartitions",
+			Handler:    _MilvusService_ShowPartitions_Handler,
+		},
+		{
+			MethodName: "DropPartition",
+			Handler:    _MilvusService_DropPartition_Handler,
+		},
+		{
+			MethodName: "Insert",
+			Handler:    _MilvusService_Insert_Handler,
+		},
+		{
+			MethodName: "GetEntityByID",
+			Handler:    _MilvusService_GetEntityByID_Handler,
+		},
+		{
+			MethodName: "GetEntityIDs",
+			Handler:    _MilvusService_GetEntityIDs_Handler,
+		},
+		{
+			MethodName: "Search",
+			Handler:    _MilvusService_Search_Handler,
+		},
+		{
+			MethodName: "SearchInSegment",
+			Handler:    _MilvusService_SearchInSegment_Handler,
+		},
+		{
+			MethodName: "Cmd",
+			Handler:    _MilvusService_Cmd_Handler,
+		},
+		{
+			MethodName: "DeleteByID",
+			Handler:    _MilvusService_DeleteByID_Handler,
+		},
+		{
+			MethodName: "PreloadCollection",
+			Handler:    _MilvusService_PreloadCollection_Handler,
+		},
+		{
+			MethodName: "Flush",
+			Handler:    _MilvusService_Flush_Handler,
+		},
+		{
+			MethodName: "Compact",
+			Handler:    _MilvusService_Compact_Handler,
+		},
+		{
+			MethodName: "SearchPB",
+			Handler:    _MilvusService_SearchPB_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "pkg/master/grpc/message/message.proto",
 }
diff --git a/pkg/master/grpc/message/message.proto b/pkg/master/grpc/message/message.proto
new file mode 100644
index 0000000000..4bea26acc5
--- /dev/null
+++ b/pkg/master/grpc/message/message.proto
@@ -0,0 +1,715 @@
+syntax = "proto3";
+
+package milvus.grpc;
+option go_package="github.com/czs007/suvlim/pkg/master/grpc/message";
+
+enum ErrorCode {
+    SUCCESS = 0;
+    UNEXPECTED_ERROR = 1;
+    CONNECT_FAILED = 2;
+    PERMISSION_DENIED = 3;
+    COLLECTION_NOT_EXISTS = 4;
+    ILLEGAL_ARGUMENT = 5;
+    ILLEGAL_DIMENSION = 7;
+    ILLEGAL_INDEX_TYPE = 8;
+    ILLEGAL_COLLECTION_NAME = 9;
+    ILLEGAL_TOPK = 10;
+    ILLEGAL_ROWRECORD = 11;
+    ILLEGAL_VECTOR_ID = 12;
+    ILLEGAL_SEARCH_RESULT = 13;
+    FILE_NOT_FOUND = 14;
+    META_FAILED = 15;
+    CACHE_FAILED = 16;
+    CANNOT_CREATE_FOLDER = 17;
+    CANNOT_CREATE_FILE = 18;
+    CANNOT_DELETE_FOLDER = 19;
+    CANNOT_DELETE_FILE = 20;
+    BUILD_INDEX_ERROR = 21;
+    ILLEGAL_NLIST = 22;
+    ILLEGAL_METRIC_TYPE = 23;
+    OUT_OF_MEMORY = 24;
+}
+
+message Status {
+    ErrorCode error_code = 1;
+    string reason = 2;
+}
+
+/**
+ * @brief Field data type
+ */
+enum DataType {
+    NONE = 0;
+    BOOL = 1;
+    INT8 = 2;
+    INT16 = 3;
+    INT32 = 4;
+    INT64 = 5;
+
+    FLOAT = 10;
+    DOUBLE = 11;
+
+    STRING = 20;
+
+    VECTOR_BINARY = 100;
+    VECTOR_FLOAT = 101;
+}
+
+/**
+ * @brief General usage
+ */
+message KeyValuePair {
+    string key = 1;
+    string value = 2;
+}
+
+/**
+ * @brief Collection name
+ */
+message CollectionName {
+    string collection_name = 1;
+}
+
+/**
+ * @brief Collection name list
+ */
+message CollectionNameList {
+    Status status = 1;
+    repeated string collection_names = 2;
+}
+
+/**
+ * @brief Field name
+ */
+message FieldName {
+    string collection_name = 1;
+    string field_name = 2;
+}
+
+/**
+ * @brief Collection mapping
+ * @extra_params: key-value pair for extra parameters of the collection
+ *    typically usage:
+ *        extra_params["params"] = {segment_row_count: 1000000, auto_id: true}
+ *    Note:
+ *        the segment_row_count specify segment row count limit for merging
+ *        the auto_id = true means entity id is auto-generated by milvus
+ */
+message Mapping {
+    Status status = 1;
+    string collection_name = 2;
+    Schema schema = 3;
+    repeated KeyValuePair extra_params = 4;
+}
+
+/**
+ * @brief Collection mapping list
+ */
+message MappingList {
+    Status status = 1;
+    repeated Mapping mapping_list = 2;
+}
+
+/**
+ * @brief Parameters of partition
+ */
+message PartitionParam {
+    string collection_name = 1;
+    string tag = 2;
+}
+
+/**
+ * @brief Partition list
+ */
+message PartitionList {
+    Status status = 1;
+    repeated string partition_tag_array = 2;
+}
+
+/**
+ * @brief Vector row record
+ */
+message VectorRowRecord {
+    repeated float float_data = 1;             //float vector data
+    bytes binary_data = 2;                      //binary vector data
+}
+
+message EntityIds {
+    Status status = 1;
+    repeated int64 entity_id_array = 2;
+}
+
+message VectorRecord {
+    repeated VectorRowRecord records = 1;
+}
+
+message VectorParam {
+    string json = 1;
+    VectorRecord row_record = 2;
+}
+
+//////////////////////////row schema and data///////////////////////////////////
+/**
+ * @brief schema
+ */
+message FieldMeta {
+    string field_name = 1;
+    DataType type = 2;
+    int64 dim = 3;
+}
+
+message Schema {
+    repeated FieldMeta field_metas = 1;
+}
+
+message RowData {
+    bytes blob = 1;
+}
+
+//////////////////////suvlim-proxy///////////////////////////////////
+message InsertParam {
+    string collection_name = 1;
+    Schema schema = 2;
+    repeated RowData rows_data = 3;
+    repeated int64 entity_id_array = 4;            //optional
+    string partition_tag = 5;
+    repeated KeyValuePair extra_params = 6;
+}
+
+message SearchParam {
+    string collection_name = 1;
+    repeated VectorParam vector_param = 2;
+    string dsl = 3;          //optional
+    repeated string partition_tag = 4; //why
+    repeated KeyValuePair extra_params = 5;
+}
+
+message SearchInSegmentParam {
+    repeated string file_id_array = 1;
+    SearchParam search_param = 2;
+}
+
+message Entities {
+    Status status = 1;
+    repeated int64 ids = 2;
+    repeated bool valid_row = 3;
+    repeated RowData rows_data = 4;
+}
+
+
+///////////////////////////milvus-server///////////////////////////
+/**
+ * @brief Query result
+ */
+message QueryResult {
+    Status status = 1;
+    Entities entities = 2;
+    int64 row_num = 3;
+    repeated float scores = 4;
+    repeated float distances = 5;
+    repeated KeyValuePair extra_params = 6;
+    int64 query_id = 7;
+    int64 client_id = 8;
+}
+
+/**
+ * @brief Server string Reply
+ */
+message StringReply {
+    Status status = 1;
+    string string_reply = 2;
+}
+
+/**
+ * @brief Server bool Reply
+ */
+message BoolReply {
+    Status status = 1;
+    bool bool_reply = 2;
+}
+
+/**
+ * @brief Return collection row count
+ */
+message CollectionRowCount {
+    Status status = 1;
+    int64 collection_row_count = 2;
+}
+
+/**
+ * @brief Server command parameters
+ */
+message Command {
+    string cmd = 1;
+}
+
+/**
+ * @brief Index params
+ * @collection_name: target collection
+ * @field_name: target field
+ * @index_name: a name for index provided by user, unique within this field
+ * @extra_params: index parameters in json format
+ *    for vector field:
+ *        extra_params["index_type"] = one of the values: FLAT, IVF_LAT, IVF_SQ8, NSGMIX, IVFSQ8H,
+ *                                                        PQ, HNSW, HNSW_SQ8NM, ANNOY
+ *        extra_params["metric_type"] = one of the values: L2, IP, HAMMING, JACCARD, TANIMOTO
+ *                                                         SUBSTRUCTURE, SUPERSTRUCTURE
+ *        extra_params["params"] = extra parameters for index, for example ivflat: {nlist: 2048}
+ *    for structured field:
+ *        extra_params["index_type"] = one of the values: SORTED
+ */
+message IndexParam {
+    Status status = 1;
+    string collection_name = 2;
+    string field_name = 3;
+    string index_name = 4;
+    repeated KeyValuePair extra_params = 5;
+}
+
+/**
+ * @brief Parameters for flush action
+ */
+message FlushParam {
+    repeated string collection_name_array = 1;
+}
+
+/**
+ * @brief Parameters for flush action
+ */
+message CompactParam {
+    string collection_name = 1;
+    double threshold = 2;
+}
+
+/**
+ * @brief Parameters for deleting entities by id
+ */
+message DeleteByIDParam {
+    string collection_name = 1;
+    repeated int64 id_array = 2;
+}
+
+/**
+ * @brief Return collection stats
+ * @json_info: collection stats in json format, typically, the format is like:
+ *     {
+ *        row_count: xxx,
+ *        data_size: xxx,
+ *        partitions: [
+ *          {
+ *            tag: xxx,
+ *            id: xxx,
+ *            row_count: xxx,
+ *            data_size: xxx,
+ *            segments: [
+ *              {
+ *                 id: xxx,
+ *                 row_count: xxx,
+ *                 data_size: xxx,
+ *                 files: [
+ *                    {
+ *                       field: xxx,
+ *                       name: xxx,
+ *                       index_type: xxx,
+ *                       path: xxx,
+ *                       data_size: xxx,
+ *                    }
+ *                 ]
+ *              }
+ *            ]
+ *          }
+ *        ]
+ *     }
+ */
+message CollectionInfo {
+    Status status = 1;
+    string json_info = 2;
+}
+
+/**
+ * @brief Parameters for returning entities id of a segment
+ */
+message GetEntityIDsParam {
+    string collection_name = 1;
+    int64 segment_id = 2;
+}
+
+/**
+ * @brief Entities identity
+ */
+message EntityIdentity {
+    string collection_name = 1;
+    repeated int64 id_array = 2;
+    repeated string field_names = 3;
+}
+
+/********************************************SearchPB interface***************************************************/
+/**
+ * @brief Vector field parameters
+ */
+message VectorFieldParam {
+    int64 dimension = 1;
+}
+
+/**
+ * @brief Field type
+ */
+message FieldType {
+    oneof value {
+        DataType data_type = 1;
+        VectorFieldParam vector_param = 2;
+    }
+}
+
+/**
+ * @brief Field parameters
+ */
+message FieldParam {
+    uint64 id = 1;
+    string name = 2;
+    DataType type = 3;
+    repeated KeyValuePair index_params = 4;
+    repeated KeyValuePair extra_params = 5;
+}
+
+/**
+ * @brief Vector field record
+ */
+message VectorFieldRecord {
+    repeated VectorRowRecord value = 1;
+}
+
+///////////////////////////////////////////////////////////////////
+
+message TermQuery {
+    string field_name = 1;
+    repeated int64 int_value = 2;
+    repeated double double_value = 3;
+    int64 value_num = 4;
+    float boost = 5;
+    repeated KeyValuePair extra_params = 6;
+}
+
+enum CompareOperator {
+    LT = 0;
+    LTE = 1;
+    EQ = 2;
+    GT = 3;
+    GTE = 4;
+    NE = 5;
+}
+
+message CompareExpr {
+    CompareOperator operator = 1;
+    string operand = 2;
+}
+
+message RangeQuery {
+    string field_name = 1;
+    repeated CompareExpr operand = 2;
+    float boost = 3;
+    repeated KeyValuePair extra_params = 4;
+}
+
+message VectorQuery {
+    string field_name = 1;
+    float query_boost = 2;
+    repeated VectorRowRecord records = 3;
+    int64 topk = 4;
+    repeated KeyValuePair extra_params = 5;
+}
+
+enum Occur {
+    INVALID = 0;
+    MUST = 1;
+    SHOULD = 2;
+    MUST_NOT = 3;
+}
+
+message BooleanQuery {
+    Occur occur = 1;
+    repeated GeneralQuery general_query = 2;
+}
+
+message GeneralQuery {
+    oneof query {
+        BooleanQuery boolean_query = 1;
+        TermQuery term_query = 2;
+        RangeQuery range_query = 3;
+        VectorQuery vector_query = 4;
+    }
+}
+
+message SearchParamPB {
+    string collection_name = 1;
+    repeated string partition_tag_array = 2;
+    GeneralQuery general_query = 3;
+    repeated KeyValuePair extra_params = 4;
+}
+
+service MilvusService {
+    /**
+     * @brief This method is used to create collection
+     *
+     * @param CollectionSchema, use to provide collection information to be created.
+     *
+     * @return Status
+     */
+    rpc CreateCollection(Mapping) returns (Status){}
+
+    /**
+     * @brief This method is used to test collection existence.
+     *
+     * @param CollectionName, collection name is going to be tested.
+     *
+     * @return BoolReply
+     */
+    rpc HasCollection(CollectionName) returns (BoolReply) {}
+
+    /**
+     * @brief This method is used to get collection schema.
+     *
+     * @param CollectionName, target collection name.
+     *
+     * @return CollectionSchema
+     */
+    rpc DescribeCollection(CollectionName) returns (Mapping) {}
+
+    /**
+     * @brief This method is used to get collection schema.
+     *
+     * @param CollectionName, target collection name.
+     *
+     * @return CollectionRowCount
+     */
+    rpc CountCollection(CollectionName) returns (CollectionRowCount) {}
+
+    /**
+     * @brief This method is used to list all collections.
+     *
+     * @param Command, dummy parameter.
+     *
+     * @return CollectionNameList
+     */
+    rpc ShowCollections(Command) returns (CollectionNameList) {}
+
+    /**
+     * @brief This method is used to get collection detail information.
+     *
+     * @param CollectionName, target collection name.
+     *
+     * @return CollectionInfo
+     */
+    rpc ShowCollectionInfo(CollectionName) returns (CollectionInfo) {}
+
+    /**
+     * @brief This method is used to delete collection.
+     *
+     * @param CollectionName, collection name is going to be deleted.
+     *
+     * @return Status
+     */
+    rpc DropCollection(CollectionName) returns (Status) {}
+
+    /**
+     * @brief This method is used to build index by collection in sync mode.
+     *
+     * @param IndexParam, index paramters.
+     *
+     * @return Status
+     */
+    rpc CreateIndex(IndexParam) returns (Status) {}
+
+    /**
+     * @brief This method is used to describe index
+     *
+     * @param IndexParam, target index.
+     *
+     * @return IndexParam
+     */
+    rpc DescribeIndex(IndexParam) returns (IndexParam) {}
+
+    /**
+     * @brief This method is used to drop index
+     *
+     * @param IndexParam, target field. if the IndexParam.field_name is empty, will drop all index of the collection
+     *
+     * @return Status
+     */
+    rpc DropIndex(IndexParam) returns (Status) {}
+
+    /**
+     * @brief This method is used to create partition
+     *
+     * @param PartitionParam, partition parameters.
+     *
+     * @return Status
+     */
+    rpc CreatePartition(PartitionParam) returns (Status) {}
+
+    /**
+     * @brief This method is used to test partition existence.
+     *
+     * @param PartitionParam, target partition.
+     *
+     * @return BoolReply
+     */
+    rpc HasPartition(PartitionParam) returns (BoolReply) {}
+
+    /**
+     * @brief This method is used to show partition information
+     *
+     * @param CollectionName, target collection name.
+     *
+     * @return PartitionList
+     */
+    rpc ShowPartitions(CollectionName) returns (PartitionList) {}
+
+    /**
+     * @brief This method is used to drop partition
+     *
+     * @param PartitionParam, target partition.
+     *
+     * @return Status
+     */
+    rpc DropPartition(PartitionParam) returns (Status) {}
+
+    /**
+     * @brief This method is used to add vector array to collection.
+     *
+     * @param InsertParam, insert parameters.
+     *
+     * @return VectorIds
+     */
+    rpc Insert(InsertParam) returns (EntityIds) {}
+
+    /**
+     * @brief This method is used to get entities data by id array.
+     *
+     * @param EntitiesIdentity, target entity id array.
+     *
+     * @return EntitiesData
+     */
+    rpc GetEntityByID(EntityIdentity) returns (Entities) {}
+
+    /**
+     * @brief This method is used to get vector ids from a segment
+     *
+     * @param GetVectorIDsParam, target collection and segment
+     *
+     * @return VectorIds
+     */
+    rpc GetEntityIDs(GetEntityIDsParam) returns (EntityIds) {}
+
+    /**
+     * @brief This method is used to query vector in collection.
+     *
+     * @param SearchParam, search parameters.
+     *
+     * @return KQueryResult
+     */
+    rpc Search(SearchParam) returns (QueryResult) {}
+
+    /**
+     * @brief This method is used to query vector in specified files.
+     *
+     * @param SearchInSegmentParam, target segments to search.
+     *
+     * @return TopKQueryResult
+     */
+    rpc SearchInSegment(SearchInSegmentParam) returns (QueryResult) {}
+
+    /**
+     * @brief This method is used to give the server status.
+     *
+     * @param Command, command string
+     *
+     * @return StringReply
+     */
+    rpc Cmd(Command) returns (StringReply) {}
+
+    /**
+     * @brief This method is used to delete vector by id
+     *
+     * @param DeleteByIDParam, delete parameters.
+     *
+     * @return status
+     */
+    rpc DeleteByID(DeleteByIDParam) returns (Status) {}
+
+    /**
+     * @brief This method is used to preload collection
+     *
+     * @param CollectionName, target collection name.
+     *
+     * @return Status
+     */
+    rpc PreloadCollection(CollectionName) returns (Status) {}
+
+    /**
+     * @brief This method is used to flush buffer into storage.
+     *
+     * @param FlushParam, flush parameters
+     *
+     * @return Status
+     */
+    rpc Flush(FlushParam) returns (Status) {}
+
+    /**
+     * @brief This method is used to compact collection
+     *
+     * @param CompactParam, compact parameters
+     *
+     * @return Status
+     */
+    rpc Compact(CompactParam) returns (Status) {}
+
+    /********************************New Interface********************************************/
+
+    rpc SearchPB(SearchParamPB) returns (QueryResult) {}
+}
+
+////////////////////pulsar//////////////////////////////////////
+enum OpType {
+    INSERT = 0;
+    DELETE = 1;
+}
+
+message InsertOrDeleteMsg {
+    string collection_name = 1;
+    RowData rows_data = 2;
+    int64 uid = 3;            //optional
+    string partition_tag = 4;
+    uint64 timestamp =5;
+    int64 segment_id = 6;
+    int64 channel_id = 7;
+    OpType op = 8;
+    int64 client_id = 9;
+    repeated KeyValuePair extra_params = 10;
+}
+
+message SearchMsg {
+    string collection_name = 1;
+    VectorRowRecord records = 2;
+    string partition_tag = 3;
+    int64 uid = 4;
+    uint64 timestamp =5;
+    int64 client_id = 6;
+    repeated KeyValuePair extra_params = 7;
+}
+
+enum SyncType {
+    READ = 0;
+    WRITE = 1;
+}
+message TimeSyncMsg{
+    int64 peer_Id = 1;
+    uint64 Timestamp = 2;
+    SyncType sync_type = 3;
+}
+
+message Key2SegMsg {
+    int64 uid = 1;
+    uint64 timestamp = 2;
+    repeated int64 segment_id = 3;
+}
diff --git a/pkg/master/mock/grpc_client.go b/pkg/master/mock/grpc_client.go
index 579b170315..3412241214 100644
--- a/pkg/master/mock/grpc_client.go
+++ b/pkg/master/mock/grpc_client.go
@@ -5,7 +5,8 @@ import (
 	"log"
 	"time"
 
-	pb "github.com/czs007/suvlim/pkg/master/grpc"
+	pb "github.com/czs007/suvlim/pkg/master/grpc/master"
+	msgpb "github.com/czs007/suvlim/pkg/master/grpc/message"
 	"google.golang.org/grpc"
 )
 
@@ -49,11 +50,14 @@ func FakeCreateCollectionByGRPC() (string, uint64) {
 
 	defer cancel()
 
-	r, err := c.CreateCollection(ctx, &pb.CreateCollectionRequest{CollectionName: "grpc-client-test"})
+	r, err := c.CreateCollection(ctx, &msgpb.Mapping{
+		CollectionName: "test-collection",
+	})
 	if err != nil {
 		log.Fatalf("could not greet: %v", err)
 	}
 
-	log.Printf("CreateCollection: %s, id: %d", r.GetCollectionName(), r.GetCollectionId())
-	return r.GetCollectionName(), r.GetCollectionId()
+	//	log.Printf("CreateCollection: %s, id: %d", r.GetCollectionName(), r.GetCollectionId())
+	//	return r.GetCollectionName(), r.GetCollectionId()
+	return r.GetReason(), 0
 }
diff --git a/pkg/master/mock/grpc_client_test.go b/pkg/master/mock/grpc_client_test.go
index 4ba4385f18..a4d015a514 100644
--- a/pkg/master/mock/grpc_client_test.go
+++ b/pkg/master/mock/grpc_client_test.go
@@ -6,9 +6,9 @@ import (
 )
 
 func TestFakeCreateCollectionByGRPC(t *testing.T) {
-	collectionName, segmentID := FakeCreateCollectionByGRPC()
-	if collectionName != "grpc-client-test" {
-		t.Error("Collection name wrong")
+	reason, segmentID := FakeCreateCollectionByGRPC()
+	if reason != "" {
+		t.Error(reason)
 	}
 	fmt.Println(collectionName)
 	fmt.Println(segmentID)
diff --git a/pkg/master/server.go b/pkg/master/server.go
index c659748a44..7e0c257648 100644
--- a/pkg/master/server.go
+++ b/pkg/master/server.go
@@ -9,7 +9,8 @@ import (
 	"time"
 
 	"github.com/czs007/suvlim/pkg/master/common"
-	pb "github.com/czs007/suvlim/pkg/master/grpc"
+	pb "github.com/czs007/suvlim/pkg/master/grpc/master"
+	messagepb "github.com/czs007/suvlim/pkg/master/grpc/message"
 	"github.com/czs007/suvlim/pkg/master/informer"
 	"github.com/czs007/suvlim/pkg/master/kv"
 	"github.com/czs007/suvlim/pkg/master/mock"
@@ -90,12 +91,19 @@ func GRPCServer() error {
 
 type GRPCMasterServer struct{}
 
-func (ms GRPCMasterServer) CreateCollection(ctx context.Context, in *pb.CreateCollectionRequest) (*pb.CreateCollectionResponse, error) {
-	return &pb.CreateCollectionResponse{
-		CollectionName: in.CollectionName,
+func (ms GRPCMasterServer) CreateCollection(ctx context.Context, in *messagepb.Mapping) (*messagepb.Status, error) {
+	return &messagepb.Status{
+		ErrorCode: 0,
+		Reason:    "",
 	}, nil
 }
 
+// func (ms GRPCMasterServer) CreateCollection(ctx context.Context, in *pb.CreateCollectionRequest) (*pb.CreateCollectionResponse, error) {
+//	return &pb.CreateCollectionResponse{
+//		CollectionName: in.CollectionName,
+//	}, nil
+// }
+
 func CollectionController() {
 	cli, _ := clientv3.New(clientv3.Config{
 		Endpoints:   []string{"127.0.0.1:12379"},
diff --git a/proto/master.proto b/proto/master.proto
new file mode 100644
index 0000000000..542b1153e8
--- /dev/null
+++ b/proto/master.proto
@@ -0,0 +1,36 @@
+syntax = "proto3";
+
+package masterpb;
+
+option go_package="master";
+
+import "message.proto";
+
+message Collection {
+  uint64 id=1;
+  string name=2;
+  milvus.grpc.Schema schema=3;
+  uint64 create_time=4;
+  repeated uint64 segment_ids=5;
+  repeated string partition_tags=6;
+}
+
+message Segment {
+  uint64 segment_id=1;
+  uint64 collection_id =2;
+  string partition_tag=3;
+  int32 channel_start=4;
+  int32 channel_end=5;
+  uint64 open_timestamp=6;
+  uint64 close_timestamp=7;
+}
+
+message SegmentStat {
+  uint64 segment_id=1;
+  uint64 memory_size=2;
+  float memory_rate=3;
+}
+
+service Master {
+  rpc CreateCollection(milvus.grpc.Mapping) returns (milvus.grpc.Status){}
+}
\ No newline at end of file