diff --git a/Makefile b/Makefile
index 1f2d9ae7ce..c2081907a1 100644
--- a/Makefile
+++ b/Makefile
@@ -69,6 +69,8 @@ build-go:
 	@mkdir -p $(INSTALL_PATH) && go env -w CGO_ENABLED="0" && GO111MODULE=on $(GO) build -o $(INSTALL_PATH)/proxy $(PWD)/cmd/proxy/proxy.go 1>/dev/null
 	@echo "Building query node ..."
 	@mkdir -p $(INSTALL_PATH) && go env -w CGO_ENABLED="1" && GO111MODULE=on $(GO) build -o $(INSTALL_PATH)/querynode $(PWD)/cmd/querynode/query_node.go 1>/dev/null
+	@echo "Building indexbuilder ..."
+	@mkdir -p $(INSTALL_PATH) && go env -w CGO_ENABLED="1" && GO111MODULE=on $(GO) build -o $(INSTALL_PATH)/indexbuilder $(PWD)/cmd/indexbuilder/indexbuilder.go 1>/dev/null
 
 build-cpp:
 	@(env bash $(PWD)/scripts/core_build.sh -f "$(CUSTOM_THIRDPARTY_PATH)")
diff --git a/configs/milvus.yaml b/configs/milvus.yaml
index 41aae39fa5..6e2cd2bcdb 100644
--- a/configs/milvus.yaml
+++ b/configs/milvus.yaml
@@ -50,4 +50,4 @@ queryNode:
 
 indexBuilder:
     address: localhost
-    port: 310310
+    port: 31000
diff --git a/internal/indexbuilder/client/client.go b/internal/indexbuilder/client/client.go
index fb3e020198..fc50b2260e 100644
--- a/internal/indexbuilder/client/client.go
+++ b/internal/indexbuilder/client/client.go
@@ -8,7 +8,6 @@ import (
 
 	"github.com/zilliztech/milvus-distributed/internal/proto/commonpb"
 	"github.com/zilliztech/milvus-distributed/internal/proto/indexbuilderpb"
-	"github.com/zilliztech/milvus-distributed/internal/util/tsoutil"
 	"github.com/zilliztech/milvus-distributed/internal/util/typeutil"
 )
 
@@ -18,20 +17,26 @@ type Client struct {
 	client indexbuilderpb.IndexBuildServiceClient
 }
 
-type IndexStatus int32
-
 type IndexDescription struct {
 	ID                UniqueID
-	Status            IndexStatus
+	Status            indexbuilderpb.IndexStatus
 	EnqueueTime       time.Time
 	ScheduleTime      time.Time
 	BuildCompleteTime time.Time
 }
 
-func NewBuildIndexClient(conn *grpc.ClientConn) *Client {
+func NewBuildIndexClient(ctx context.Context, address string) (*Client, error) {
+	conn, err := grpc.DialContext(ctx, address, grpc.WithInsecure(), grpc.WithBlock())
+	if err != nil {
+		return nil, err
+	}
 	return &Client{
 		client: indexbuilderpb.NewIndexBuildServiceClient(conn),
-	}
+	}, nil
+}
+
+func parseTS(t int64) time.Time {
+	return time.Unix(0, t)
 }
 
 func (c *Client) BuildIndexWithoutID(columnDataPaths []string, typeParams map[string]string, indexParams map[string]string) (UniqueID, error) {
@@ -66,36 +71,24 @@ func (c *Client) BuildIndexWithoutID(columnDataPaths []string, typeParams map[st
 	return indexID, err
 }
 
-func (c *Client) DescribeIndex(indexID UniqueID) (IndexDescription, error) {
+func (c *Client) DescribeIndex(indexID UniqueID) (*IndexDescription, error) {
 	ctx := context.TODO()
 	request := &indexbuilderpb.DescribleIndexRequest{
 		IndexID: indexID,
 	}
 	response, err := c.client.DescribeIndex(ctx, request)
 	if err != nil {
-		return IndexDescription{}, err
+		return &IndexDescription{}, err
 	}
 
-	enqueueTime, _ := tsoutil.ParseTS(response.EnqueTime)
-	scheduleTime, _ := tsoutil.ParseTS(response.ScheduleTime)
-	buildCompleteTime, _ := tsoutil.ParseTS(response.BuildCompleteTime)
 	indexDescription := IndexDescription{
 		ID:                indexID,
-		Status:            IndexStatus(response.IndexStatus),
-		EnqueueTime:       enqueueTime,
-		ScheduleTime:      scheduleTime,
-		BuildCompleteTime: buildCompleteTime,
+		Status:            response.IndexStatus,
+		EnqueueTime:       parseTS(response.EnqueTime),
+		ScheduleTime:      parseTS(response.ScheduleTime),
+		BuildCompleteTime: parseTS(response.BuildCompleteTime),
 	}
-
-	//indexDescription := IndexDescription{
-	//	ID:           indexID,
-	//	Status:       IndexStatus(response.IndexStatus),
-	//	EnqueueTime:  time.Unix(0, response.EnqueTime),
-	//	ScheduleTime: time.Unix(-, response.ScheduleTime),
-	//	BuildCompleteTime: time.Unix(0, response.BuildCompleteTime),
-	//}
-
-	return indexDescription, nil
+	return &indexDescription, nil
 }
 
 func (c *Client) GetIndexFilePaths(indexID UniqueID) ([]string, error) {
diff --git a/internal/indexbuilder/client/client_test.go b/internal/indexbuilder/client/client_test.go
deleted file mode 100644
index fae0d7321f..0000000000
--- a/internal/indexbuilder/client/client_test.go
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (C) 2019-2020 Zilliz. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
-// with the License. You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software distributed under the License
-// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
-// or implied. See the License for the specific language governing permissions and limitations under the License.
-
-package indexbuilderclient
diff --git a/internal/indexbuilder/grpc_service.go b/internal/indexbuilder/grpc_service.go
index a16934239a..2f8f10de5a 100644
--- a/internal/indexbuilder/grpc_service.go
+++ b/internal/indexbuilder/grpc_service.go
@@ -2,8 +2,10 @@ package indexbuilder
 
 import (
 	"context"
+	"errors"
 	"time"
 
+	"github.com/zilliztech/milvus-distributed/internal/proto/commonpb"
 	"github.com/zilliztech/milvus-distributed/internal/proto/indexbuilderpb"
 )
 
@@ -12,13 +14,68 @@ const (
 )
 
 func (b *Builder) BuildIndex(ctx context.Context, request *indexbuilderpb.BuildIndexRequest) (*indexbuilderpb.BuildIndexResponse, error) {
-	panic("implement me")
+	t := NewIndexAddTask()
+	t.req = request
+	t.idAllocator = b.idAllocator
+	t.buildQueue = b.sched.IndexBuildQueue
+	t.table = b.metaTable
+	var cancel func()
+	t.ctx, cancel = context.WithTimeout(ctx, reqTimeoutInterval)
+	defer cancel()
+
+	fn := func() error {
+		select {
+		case <-ctx.Done():
+			return errors.New("insert timeout")
+		default:
+			return b.sched.IndexAddQueue.Enqueue(t)
+		}
+	}
+	ret := &indexbuilderpb.BuildIndexResponse{
+		Status: &commonpb.Status{
+			ErrorCode: commonpb.ErrorCode_SUCCESS,
+		},
+	}
+
+	err := fn()
+	if err != nil {
+		ret.Status.ErrorCode = commonpb.ErrorCode_UNEXPECTED_ERROR
+		ret.Status.Reason = err.Error()
+		return ret, nil
+	}
+
+	err = t.WaitToFinish()
+	if err != nil {
+		ret.Status.ErrorCode = commonpb.ErrorCode_UNEXPECTED_ERROR
+		ret.Status.Reason = err.Error()
+		return ret, nil
+	}
+	ret.IndexID = t.indexID
+	return ret, nil
 }
 
 func (b *Builder) DescribeIndex(ctx context.Context, request *indexbuilderpb.DescribleIndexRequest) (*indexbuilderpb.DescribleIndexResponse, error) {
-	panic("implement me")
+	indexID := request.IndexID
+	ret, err := b.metaTable.GetIndexDescription(indexID)
+	ret.Status = &commonpb.Status{ErrorCode: commonpb.ErrorCode_SUCCESS}
+	ret.IndexID = indexID
+	if err != nil {
+		ret.Status.ErrorCode = commonpb.ErrorCode_UNEXPECTED_ERROR
+		ret.Status.Reason = err.Error()
+	}
+	return ret, nil
 }
 
 func (b *Builder) GetIndexFilePaths(ctx context.Context, request *indexbuilderpb.GetIndexFilePathsRequest) (*indexbuilderpb.GetIndexFilePathsResponse, error) {
-	panic("implement me")
+	ret := &indexbuilderpb.GetIndexFilePathsResponse{
+		Status:  &commonpb.Status{ErrorCode: commonpb.ErrorCode_SUCCESS},
+		IndexID: request.IndexID,
+	}
+	filePaths, err := b.metaTable.GetIndexFilePaths(request.IndexID)
+	if err != nil {
+		ret.Status.ErrorCode = commonpb.ErrorCode_UNEXPECTED_ERROR
+		ret.Status.Reason = err.Error()
+	}
+	ret.IndexFilePaths = filePaths
+	return ret, nil
 }
diff --git a/internal/indexbuilder/indexbuilder.go b/internal/indexbuilder/indexbuilder.go
index 1743766e1f..4fef888728 100644
--- a/internal/indexbuilder/indexbuilder.go
+++ b/internal/indexbuilder/indexbuilder.go
@@ -2,8 +2,6 @@ package indexbuilder
 
 import (
 	"context"
-	etcdkv "github.com/zilliztech/milvus-distributed/internal/kv/etcd"
-	"go.etcd.io/etcd/clientv3"
 	"log"
 	"math/rand"
 	"net"
@@ -11,13 +9,17 @@ import (
 	"sync"
 	"time"
 
+	"go.etcd.io/etcd/clientv3"
+
 	"github.com/zilliztech/milvus-distributed/internal/allocator"
+	etcdkv "github.com/zilliztech/milvus-distributed/internal/kv/etcd"
 	"github.com/zilliztech/milvus-distributed/internal/proto/indexbuilderpb"
 	"github.com/zilliztech/milvus-distributed/internal/util/typeutil"
 	"google.golang.org/grpc"
 )
 
 type UniqueID = typeutil.UniqueID
+type Timestamp = typeutil.Timestamp
 
 type Builder struct {
 	loopCtx    context.Context
@@ -66,7 +68,7 @@ func CreateBuilder(ctx context.Context) (*Builder, error) {
 	}
 	b.idAllocator = idAllocator
 
-	b.sched, err = NewTaskScheduler(b.loopCtx, b.idAllocator)
+	b.sched, err = NewTaskScheduler(b.loopCtx, b.idAllocator, b.metaTable)
 	if err != nil {
 		return nil, err
 	}
@@ -88,6 +90,8 @@ func (b *Builder) startBuilder() error {
 		cb()
 	}
 
+	b.idAllocator.Start()
+
 	b.loopWg.Add(1)
 	go b.grpcLoop()
 
@@ -121,12 +125,13 @@ func (b *Builder) Start() error {
 func (b *Builder) stopBuilderLoop() {
 	b.loopCancel()
 
+	b.idAllocator.Close()
+
 	if b.grpcServer != nil {
 		b.grpcServer.GracefulStop()
 	}
 
 	b.sched.Close()
-
 	b.loopWg.Wait()
 }
 
diff --git a/internal/indexbuilder/indexbuilder_test.go b/internal/indexbuilder/indexbuilder_test.go
index d97e61ac54..6e72275428 100644
--- a/internal/indexbuilder/indexbuilder_test.go
+++ b/internal/indexbuilder/indexbuilder_test.go
@@ -2,28 +2,75 @@ package indexbuilder
 
 import (
 	"context"
-	"github.com/zilliztech/milvus-distributed/internal/proto/indexbuilderpb"
+	"fmt"
 	"log"
 	"os"
+	"strconv"
 	"testing"
+	"time"
+
+	"go.etcd.io/etcd/clientv3"
 
 	"go.uber.org/zap"
-	"google.golang.org/grpc"
+
+	"github.com/stretchr/testify/assert"
+	indexbuilderclient "github.com/zilliztech/milvus-distributed/internal/indexbuilder/client"
+	"github.com/zilliztech/milvus-distributed/internal/master"
+	"github.com/zilliztech/milvus-distributed/internal/proto/indexbuilderpb"
 )
 
 var ctx context.Context
 var cancel func()
-var clientConn *grpc.ClientConn
 
-var buildClient indexbuilderpb.IndexBuildServiceClient
+var buildClient *indexbuilderclient.Client
 
 var builderServer *Builder
 
-var testNum = 10
+var masterPort = 53101
+var masterServer *master.Master
+
+func makeMasterAddress(port int64) string {
+	masterAddr := "127.0.0.1:" + strconv.FormatInt(port, 10)
+	return masterAddr
+}
+
+func refreshMasterAddress() {
+	masterAddr := makeMasterAddress(int64(masterPort))
+	Params.MasterAddress = masterAddr
+	master.Params.Port = masterPort
+}
+
+func startMaster(ctx context.Context) {
+	master.Init()
+	refreshMasterAddress()
+	etcdAddr := master.Params.EtcdAddress
+	metaRootPath := master.Params.MetaRootPath
+
+	etcdCli, err := clientv3.New(clientv3.Config{Endpoints: []string{etcdAddr}})
+	if err != nil {
+		panic(err)
+	}
+	_, err = etcdCli.Delete(context.TODO(), metaRootPath, clientv3.WithPrefix())
+	if err != nil {
+		panic(err)
+	}
+
+	svr, err := master.CreateServer(ctx)
+	masterServer = svr
+	if err != nil {
+		log.Print("create server failed", zap.Error(err))
+	}
+	if err := svr.Run(int64(master.Params.Port)); err != nil {
+		log.Fatal("run server failed", zap.Error(err))
+	}
+
+	fmt.Println("Waiting for server!", svr.IsServing())
+
+}
 
 func startBuilder(ctx context.Context) {
-
-	builderServer, err := CreateBuilder(ctx)
+	var err error
+	builderServer, err = CreateBuilder(ctx)
 	if err != nil {
 		log.Print("create builder failed", zap.Error(err))
 	}
@@ -37,21 +84,21 @@ func startBuilder(ctx context.Context) {
 func setup() {
 	Params.Init()
 	ctx, cancel = context.WithCancel(context.Background())
-
+	startMaster(ctx)
 	startBuilder(ctx)
 	addr := Params.Address
-	conn, err := grpc.DialContext(ctx, addr, grpc.WithInsecure(), grpc.WithBlock())
+	var err error
+	buildClient, err = indexbuilderclient.NewBuildIndexClient(ctx, addr)
 	if err != nil {
-		log.Fatalf("Connect to builder server failed, error= %v", err)
+		panic("Create buildClient Failed!")
 	}
-	clientConn = conn
-	buildClient = indexbuilderpb.NewIndexBuildServiceClient(clientConn)
 
 }
 
 func shutdown() {
 	cancel()
 	builderServer.Close()
+	masterServer.Close()
 }
 
 func TestMain(m *testing.M) {
@@ -60,3 +107,27 @@ func TestMain(m *testing.M) {
 	shutdown()
 	os.Exit(code)
 }
+
+func TestBuilder_GRPC(t *testing.T) {
+	typeParams := make(map[string]string)
+	typeParams["a"] = "1"
+	indexParams := make(map[string]string)
+	indexParams["b"] = "2"
+	columnDataPaths := []string{"dataA", "dataB"}
+	indexID, err := buildClient.BuildIndexWithoutID(columnDataPaths, typeParams, indexParams)
+	assert.Nil(t, err)
+
+	select {
+	case <-time.After(time.Second * 3):
+	}
+
+	description, err := buildClient.DescribeIndex(indexID)
+	assert.Nil(t, err)
+	assert.Equal(t, indexbuilderpb.IndexStatus_FINISHED, description.Status)
+	assert.Equal(t, indexID, description.ID)
+
+	indexDataPaths, err := buildClient.GetIndexFilePaths(indexID)
+	assert.Nil(t, err)
+	assert.NotNil(t, indexDataPaths)
+
+}
diff --git a/internal/indexbuilder/meta_table.go b/internal/indexbuilder/meta_table.go
index d0738e9a44..38ed76125c 100644
--- a/internal/indexbuilder/meta_table.go
+++ b/internal/indexbuilder/meta_table.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"strconv"
 	"sync"
+	"time"
 
 	"github.com/golang/protobuf/proto"
 	"github.com/zilliztech/milvus-distributed/internal/errors"
@@ -46,7 +47,6 @@ func (mt *metaTable) reloadFromKV() error {
 		}
 		mt.indexID2Meta[indexMeta.IndexID] = indexMeta
 	}
-
 	return nil
 }
 
@@ -59,29 +59,96 @@ func (mt *metaTable) saveIndexMeta(meta *pb.IndexMeta) error {
 	return mt.client.Save("/indexes/"+strconv.FormatInt(meta.IndexID, 10), value)
 }
 
-func (mt *metaTable) AddIndex(meta *pb.IndexMeta) error {
+func (mt *metaTable) AddIndex(indexID UniqueID, req *pb.BuildIndexRequest) error {
 	mt.lock.Lock()
 	defer mt.lock.Unlock()
-
-	return nil
-}
-
-func (mt *metaTable) UpdateIndex(meta *pb.IndexMeta) error {
-	mt.lock.Lock()
-	defer mt.lock.Unlock()
-
-	return nil
-}
-
-func (mt *metaTable) GetIndexByID(indexID UniqueID) (*pb.IndexMeta, error) {
-	mt.lock.RLock()
-	defer mt.lock.RUnlock()
-
-	sm, ok := mt.indexID2Meta[indexID]
-	if !ok {
-		return nil, errors.Errorf("can't find index id = %d", indexID)
+	_, ok := mt.indexID2Meta[indexID]
+	if ok {
+		return errors.Errorf("index already exists with ID = " + strconv.FormatInt(indexID, 10))
 	}
-	return &sm, nil
+	meta := &pb.IndexMeta{
+		Status:  pb.IndexStatus_UNISSUED,
+		IndexID: indexID,
+		Req:     req,
+	}
+	mt.saveIndexMeta(meta)
+	return nil
+}
+
+func (mt *metaTable) UpdateIndexStatus(indexID UniqueID, status pb.IndexStatus) error {
+	mt.lock.Lock()
+	defer mt.lock.Unlock()
+	meta, ok := mt.indexID2Meta[indexID]
+	if !ok {
+		return errors.Errorf("index not exists with ID = " + strconv.FormatInt(indexID, 10))
+	}
+	meta.Status = status
+	mt.saveIndexMeta(&meta)
+	return nil
+}
+
+func (mt *metaTable) UpdateIndexEnqueTime(indexID UniqueID, t time.Time) error {
+	mt.lock.Lock()
+	defer mt.lock.Unlock()
+	meta, ok := mt.indexID2Meta[indexID]
+	if !ok {
+		return errors.Errorf("index not exists with ID = " + strconv.FormatInt(indexID, 10))
+	}
+	meta.EnqueTime = t.UnixNano()
+	mt.saveIndexMeta(&meta)
+	return nil
+}
+
+func (mt *metaTable) UpdateIndexScheduleTime(indexID UniqueID, t time.Time) error {
+	mt.lock.Lock()
+	defer mt.lock.Unlock()
+	meta, ok := mt.indexID2Meta[indexID]
+	if !ok {
+		return errors.Errorf("index not exists with ID = " + strconv.FormatInt(indexID, 10))
+	}
+	meta.ScheduleTime = t.UnixNano()
+	mt.saveIndexMeta(&meta)
+	return nil
+}
+
+func (mt *metaTable) CompleteIndex(indexID UniqueID, dataPaths []string) error {
+	mt.lock.Lock()
+	defer mt.lock.Unlock()
+	meta, ok := mt.indexID2Meta[indexID]
+	if !ok {
+		return errors.Errorf("index not exists with ID = " + strconv.FormatInt(indexID, 10))
+	}
+	meta.Status = pb.IndexStatus_FINISHED
+	meta.IndexFilePaths = dataPaths
+	meta.BuildCompleteTime = time.Now().UnixNano()
+	mt.saveIndexMeta(&meta)
+	return nil
+}
+
+func (mt *metaTable) GetIndexDescription(indexID UniqueID) (*pb.DescribleIndexResponse, error) {
+	mt.lock.Lock()
+	defer mt.lock.Unlock()
+	ret := &pb.DescribleIndexResponse{}
+	meta, ok := mt.indexID2Meta[indexID]
+	if !ok {
+		return ret, errors.Errorf("index not exists with ID = " + strconv.FormatInt(indexID, 10))
+	}
+	ret.IndexStatus = meta.Status
+	ret.EnqueTime = meta.EnqueTime
+	ret.BuildCompleteTime = meta.BuildCompleteTime
+	ret.ScheduleTime = meta.ScheduleTime
+	return ret, nil
+}
+
+func (mt *metaTable) GetIndexFilePaths(indexID UniqueID) ([]string, error) {
+	mt.lock.Lock()
+	defer mt.lock.Unlock()
+
+	meta, ok := mt.indexID2Meta[indexID]
+	if !ok {
+		return nil, errors.Errorf("index not exists with ID = " + strconv.FormatInt(indexID, 10))
+	}
+	return meta.IndexFilePaths, nil
 }
 
 func (mt *metaTable) DeleteIndex(indexID UniqueID) error {
diff --git a/internal/indexbuilder/paramtable.go b/internal/indexbuilder/paramtable.go
index d5e40a8e17..45ed54f818 100644
--- a/internal/indexbuilder/paramtable.go
+++ b/internal/indexbuilder/paramtable.go
@@ -25,6 +25,9 @@ func (pt *ParamTable) Init() {
 	pt.BaseTable.Init()
 	pt.initAddress()
 	pt.initPort()
+	pt.initEtcdAddress()
+	pt.initMasterAddress()
+	pt.initMetaRootPath()
 }
 
 func (pt *ParamTable) initAddress() {
diff --git a/internal/indexbuilder/paramtable_test.go b/internal/indexbuilder/paramtable_test.go
index 1be77cf6f6..390a327d14 100644
--- a/internal/indexbuilder/paramtable_test.go
+++ b/internal/indexbuilder/paramtable_test.go
@@ -12,12 +12,12 @@ func TestParamTable_Init(t *testing.T) {
 
 func TestParamTable_Address(t *testing.T) {
 	address := Params.Address
-	assert.Equal(t, address, "localhost")
+	assert.Equal(t, address, "localhost:31000")
 }
 
 func TestParamTable_Port(t *testing.T) {
 	port := Params.Port
-	assert.Equal(t, port, 310310)
+	assert.Equal(t, port, 31000)
 }
 
 func TestParamTable_MetaRootPath(t *testing.T) {
diff --git a/internal/indexbuilder/task.go b/internal/indexbuilder/task.go
index 29c0814640..8509883a2d 100644
--- a/internal/indexbuilder/task.go
+++ b/internal/indexbuilder/task.go
@@ -2,8 +2,12 @@ package indexbuilder
 
 import (
 	"context"
+	"log"
+	"time"
+
 	"github.com/zilliztech/milvus-distributed/internal/allocator"
 	"github.com/zilliztech/milvus-distributed/internal/errors"
+	"github.com/zilliztech/milvus-distributed/internal/proto/indexbuilderpb"
 )
 
 type task interface {
@@ -14,12 +18,14 @@ type task interface {
 	PostExecute() error
 	WaitToFinish() error
 	Notify(err error)
+	OnEnqueue() error
 }
 
 type BaseTask struct {
-	done chan error
-	ctx  context.Context
-	id   UniqueID
+	done  chan error
+	ctx   context.Context
+	id    UniqueID
+	table *metaTable
 }
 
 func (bt *BaseTask) ID() UniqueID {
@@ -31,13 +37,11 @@ func (bt *BaseTask) setID(id UniqueID) {
 }
 
 func (bt *BaseTask) WaitToFinish() error {
-	for {
-		select {
-		case <-bt.ctx.Done():
-			return errors.New("timeout")
-		case err := <-bt.done:
-			return err
-		}
+	select {
+	case <-bt.ctx.Done():
+		return errors.New("timeout")
+	case err := <-bt.done:
+		return err
 	}
 }
 
@@ -45,38 +49,104 @@ func (bt *BaseTask) Notify(err error) {
 	bt.done <- err
 }
 
-type IndexBuildTask struct {
+type IndexAddTask struct {
 	BaseTask
-	rowIDAllocator *allocator.IDAllocator
+	req         *indexbuilderpb.BuildIndexRequest
+	indexID     UniqueID
+	idAllocator *allocator.IDAllocator
+	buildQueue  TaskQueue
 }
 
-func (it *IndexBuildTask) PreExecute() error {
+func (it *IndexAddTask) SetID(ID UniqueID) {
+	it.BaseTask.setID(ID)
+}
 
+func (it *IndexAddTask) OnEnqueue() error {
+	var err error
+	it.indexID, err = it.idAllocator.AllocOne()
+	if err != nil {
+		return err
+	}
 	return nil
 }
 
-func (it *IndexBuildTask) Execute() error {
+func (it *IndexAddTask) PreExecute() error {
+	log.Println("pretend to check Index Req")
+	err := it.table.AddIndex(it.indexID, it.req)
+	if err != nil {
+		return err
+	}
+	return nil
+}
 
+func (it *IndexAddTask) Execute() error {
+	t := newIndexBuildTask()
+	t.table = it.table
+	t.indexID = it.indexID
+	var cancel func()
+	t.ctx, cancel = context.WithTimeout(it.ctx, reqTimeoutInterval)
+	defer cancel()
+
+	fn := func() error {
+		select {
+		case <-t.ctx.Done():
+			return errors.New("index add timeout")
+		default:
+			return it.buildQueue.Enqueue(t)
+		}
+	}
+	return fn()
+}
+
+func (it *IndexAddTask) PostExecute() error {
+	return nil
+}
+
+func NewIndexAddTask() *IndexAddTask {
+	return &IndexAddTask{
+		BaseTask: BaseTask{
+			done: make(chan error),
+		},
+	}
+}
+
+type IndexBuildTask struct {
+	BaseTask
+	indexID   UniqueID
+	indexMeta *indexbuilderpb.IndexMeta
+}
+
+func newIndexBuildTask() *IndexBuildTask {
+	return &IndexBuildTask{
+		BaseTask: BaseTask{
+			done: make(chan error, 1), // intend to do this
+		},
+	}
+}
+
+func (it *IndexBuildTask) SetID(ID UniqueID) {
+	it.BaseTask.setID(ID)
+}
+
+func (it *IndexBuildTask) OnEnqueue() error {
+	return it.table.UpdateIndexEnqueTime(it.indexID, time.Now())
+}
+
+func (it *IndexBuildTask) PreExecute() error {
+	return it.table.UpdateIndexScheduleTime(it.indexID, time.Now())
+}
+
+func (it *IndexBuildTask) Execute() error {
+	err := it.table.UpdateIndexStatus(it.indexID, indexbuilderpb.IndexStatus_INPROGRESS)
+	if err != nil {
+		return err
+	}
+	time.Sleep(time.Second)
+	log.Println("Pretend to Execute for 1 second")
 	return nil
 }
 
 func (it *IndexBuildTask) PostExecute() error {
-	return nil
-}
-
-type DescribeIndexTask struct {
-	BaseTask
-	ctx context.Context
-}
-
-func (dct *DescribeIndexTask) PreExecute() error {
-	return nil
-}
-
-func (dct *DescribeIndexTask) Execute() error {
-	return nil
-}
-
-func (dct *DescribeIndexTask) PostExecute() error {
-	return nil
+	dataPaths := []string{"file1", "file2"}
+	return it.table.CompleteIndex(it.indexID, dataPaths)
 }
diff --git a/internal/indexbuilder/task_scheduler.go b/internal/indexbuilder/task_scheduler.go
index 370ee5d7a8..7eaa3d0926 100644
--- a/internal/indexbuilder/task_scheduler.go
+++ b/internal/indexbuilder/task_scheduler.go
@@ -117,30 +117,30 @@ func (queue *BaseTaskQueue) Enqueue(t task) error {
 	tID, _ := queue.sched.idAllocator.AllocOne()
 	log.Printf("[Builder] allocate reqID: %v", tID)
 	t.SetID(tID)
+	err := t.OnEnqueue()
+	if err != nil {
+		return err
+	}
 	return queue.addUnissuedTask(t)
 }
 
-type DdTaskQueue struct {
+type IndexAddTaskQueue struct {
 	BaseTaskQueue
 	lock sync.Mutex
 }
 
-type DescribleTaskQueue struct {
-	BaseTaskQueue
-}
-
 type IndexBuildTaskQueue struct {
 	BaseTaskQueue
 }
 
-func (queue *DdTaskQueue) Enqueue(t task) error {
+func (queue *IndexAddTaskQueue) Enqueue(t task) error {
 	queue.lock.Lock()
 	defer queue.lock.Unlock()
 	return queue.BaseTaskQueue.Enqueue(t)
 }
 
-func NewDescribleTaskQueue(sched *TaskScheduler) *DescribleTaskQueue {
-	return &DescribleTaskQueue{
+func NewIndexAddTaskQueue(sched *TaskScheduler) *IndexAddTaskQueue {
+	return &IndexAddTaskQueue{
 		BaseTaskQueue: BaseTaskQueue{
 			unissuedTasks: list.New(),
 			activeTasks:   make(map[UniqueID]task),
@@ -164,10 +164,11 @@ func NewIndexBuildTaskQueue(sched *TaskScheduler) *IndexBuildTaskQueue {
 }
 
 type TaskScheduler struct {
-	DescribeQueue   TaskQueue
+	IndexAddQueue   TaskQueue
 	IndexBuildQueue TaskQueue
 
 	idAllocator *allocator.IDAllocator
+	metaTable   *metaTable
 
 	wg     sync.WaitGroup
 	ctx    context.Context
@@ -175,21 +176,23 @@ type TaskScheduler struct {
 }
 
 func NewTaskScheduler(ctx context.Context,
-	idAllocator *allocator.IDAllocator) (*TaskScheduler, error) {
+	idAllocator *allocator.IDAllocator,
+	table *metaTable) (*TaskScheduler, error) {
 	ctx1, cancel := context.WithCancel(ctx)
 	s := &TaskScheduler{
 		idAllocator: idAllocator,
+		metaTable:   table,
 		ctx:         ctx1,
 		cancel:      cancel,
 	}
-	s.DescribeQueue = NewDescribleTaskQueue(s)
+	s.IndexAddQueue = NewIndexAddTaskQueue(s)
 	s.IndexBuildQueue = NewIndexBuildTaskQueue(s)
 
 	return s, nil
 }
 
-func (sched *TaskScheduler) scheduleDescribleTask() task {
-	return sched.DescribeQueue.PopUnissuedTask()
+func (sched *TaskScheduler) scheduleIndexAddTask() task {
+	return sched.IndexAddQueue.PopUnissuedTask()
 }
 
 func (sched *TaskScheduler) scheduleIndexBuildTask() task {
@@ -225,7 +228,7 @@ func (sched *TaskScheduler) processTask(t task, q TaskQueue) {
 	log.Printf("post execute task done ...")
 }
 
-func (sched *TaskScheduler) indexBuildingLoop() {
+func (sched *TaskScheduler) indexBuildLoop() {
 	defer sched.wg.Done()
 	for {
 		select {
@@ -240,28 +243,28 @@ func (sched *TaskScheduler) indexBuildingLoop() {
 	}
 }
 
-func (sched *TaskScheduler) describeLoop() {
+func (sched *TaskScheduler) indexAddLoop() {
 	defer sched.wg.Done()
 	for {
 		select {
 		case <-sched.ctx.Done():
 			return
-		case <-sched.DescribeQueue.utChan():
-			if !sched.DescribeQueue.utEmpty() {
-				t := sched.scheduleDescribleTask()
-				go sched.processTask(t, sched.DescribeQueue)
+		case <-sched.IndexAddQueue.utChan():
+			if !sched.IndexAddQueue.utEmpty() {
+				t := sched.scheduleIndexAddTask()
+				go sched.processTask(t, sched.IndexAddQueue)
 			}
 		}
 	}
 }
 
 func (sched *TaskScheduler) Start() error {
-	sched.wg.Add(1)
-	go sched.indexBuildingLoop()
 
 	sched.wg.Add(1)
-	go sched.describeLoop()
+	go sched.indexAddLoop()
 
+	sched.wg.Add(1)
+	go sched.indexBuildLoop()
 	return nil
 }
 
diff --git a/internal/proto/index_builder.proto b/internal/proto/index_builder.proto
index 6f711e4007..6e64a6bb26 100644
--- a/internal/proto/index_builder.proto
+++ b/internal/proto/index_builder.proto
@@ -42,17 +42,20 @@ message DescribleIndexResponse {
     common.Status status = 1;
     IndexStatus index_status =2;
     int64 indexID = 3;
-    repeated string index_file_paths=4;
-    uint64 enque_time = 5;
-    uint64 schedule_time = 6;
-    uint64 build_complete_time = 7;
+    int64 enque_time = 4;
+    int64 schedule_time = 5;
+    int64 build_complete_time = 6;
 }
 
 
 message IndexMeta {
     IndexStatus status =1;
     int64   indexID = 2;
-    BuildIndexRequest req = 3;
+    int64 enque_time = 3;
+    int64 schedule_time = 4;
+    int64 build_complete_time = 5;
+    BuildIndexRequest req = 6;
+    repeated string index_file_paths=7;
 }
 
 service IndexBuildService {
diff --git a/internal/proto/indexbuilderpb/index_builder.pb.go b/internal/proto/indexbuilderpb/index_builder.pb.go
index 18a860aded..a0940d57d8 100644
--- a/internal/proto/indexbuilderpb/index_builder.pb.go
+++ b/internal/proto/indexbuilderpb/index_builder.pb.go
@@ -295,10 +295,9 @@ type DescribleIndexResponse struct {
 	Status               *commonpb.Status `protobuf:"bytes,1,opt,name=status,proto3" json:"status,omitempty"`
 	IndexStatus          IndexStatus      `protobuf:"varint,2,opt,name=index_status,json=indexStatus,proto3,enum=milvus.proto.service.IndexStatus" json:"index_status,omitempty"`
 	IndexID              int64            `protobuf:"varint,3,opt,name=indexID,proto3" json:"indexID,omitempty"`
-	IndexFilePaths       []string         `protobuf:"bytes,4,rep,name=index_file_paths,json=indexFilePaths,proto3" json:"index_file_paths,omitempty"`
-	EnqueTime            uint64           `protobuf:"varint,5,opt,name=enque_time,json=enqueTime,proto3" json:"enque_time,omitempty"`
-	ScheduleTime         uint64           `protobuf:"varint,6,opt,name=schedule_time,json=scheduleTime,proto3" json:"schedule_time,omitempty"`
-	BuildCompleteTime    uint64           `protobuf:"varint,7,opt,name=build_complete_time,json=buildCompleteTime,proto3" json:"build_complete_time,omitempty"`
+	EnqueTime            int64            `protobuf:"varint,4,opt,name=enque_time,json=enqueTime,proto3" json:"enque_time,omitempty"`
+	ScheduleTime         int64            `protobuf:"varint,5,opt,name=schedule_time,json=scheduleTime,proto3" json:"schedule_time,omitempty"`
+	BuildCompleteTime    int64            `protobuf:"varint,6,opt,name=build_complete_time,json=buildCompleteTime,proto3" json:"build_complete_time,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}         `json:"-"`
 	XXX_unrecognized     []byte           `json:"-"`
 	XXX_sizecache        int32            `json:"-"`
@@ -350,28 +349,21 @@ func (m *DescribleIndexResponse) GetIndexID() int64 {
 	return 0
 }
 
-func (m *DescribleIndexResponse) GetIndexFilePaths() []string {
-	if m != nil {
-		return m.IndexFilePaths
-	}
-	return nil
-}
-
-func (m *DescribleIndexResponse) GetEnqueTime() uint64 {
+func (m *DescribleIndexResponse) GetEnqueTime() int64 {
 	if m != nil {
 		return m.EnqueTime
 	}
 	return 0
 }
 
-func (m *DescribleIndexResponse) GetScheduleTime() uint64 {
+func (m *DescribleIndexResponse) GetScheduleTime() int64 {
 	if m != nil {
 		return m.ScheduleTime
 	}
 	return 0
 }
 
-func (m *DescribleIndexResponse) GetBuildCompleteTime() uint64 {
+func (m *DescribleIndexResponse) GetBuildCompleteTime() int64 {
 	if m != nil {
 		return m.BuildCompleteTime
 	}
@@ -381,7 +373,11 @@ func (m *DescribleIndexResponse) GetBuildCompleteTime() uint64 {
 type IndexMeta struct {
 	Status               IndexStatus        `protobuf:"varint,1,opt,name=status,proto3,enum=milvus.proto.service.IndexStatus" json:"status,omitempty"`
 	IndexID              int64              `protobuf:"varint,2,opt,name=indexID,proto3" json:"indexID,omitempty"`
-	Req                  *BuildIndexRequest `protobuf:"bytes,3,opt,name=req,proto3" json:"req,omitempty"`
+	EnqueTime            int64              `protobuf:"varint,3,opt,name=enque_time,json=enqueTime,proto3" json:"enque_time,omitempty"`
+	ScheduleTime         int64              `protobuf:"varint,4,opt,name=schedule_time,json=scheduleTime,proto3" json:"schedule_time,omitempty"`
+	BuildCompleteTime    int64              `protobuf:"varint,5,opt,name=build_complete_time,json=buildCompleteTime,proto3" json:"build_complete_time,omitempty"`
+	Req                  *BuildIndexRequest `protobuf:"bytes,6,opt,name=req,proto3" json:"req,omitempty"`
+	IndexFilePaths       []string           `protobuf:"bytes,7,rep,name=index_file_paths,json=indexFilePaths,proto3" json:"index_file_paths,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}           `json:"-"`
 	XXX_unrecognized     []byte             `json:"-"`
 	XXX_sizecache        int32              `json:"-"`
@@ -426,6 +422,27 @@ func (m *IndexMeta) GetIndexID() int64 {
 	return 0
 }
 
+func (m *IndexMeta) GetEnqueTime() int64 {
+	if m != nil {
+		return m.EnqueTime
+	}
+	return 0
+}
+
+func (m *IndexMeta) GetScheduleTime() int64 {
+	if m != nil {
+		return m.ScheduleTime
+	}
+	return 0
+}
+
+func (m *IndexMeta) GetBuildCompleteTime() int64 {
+	if m != nil {
+		return m.BuildCompleteTime
+	}
+	return 0
+}
+
 func (m *IndexMeta) GetReq() *BuildIndexRequest {
 	if m != nil {
 		return m.Req
@@ -433,6 +450,13 @@ func (m *IndexMeta) GetReq() *BuildIndexRequest {
 	return nil
 }
 
+func (m *IndexMeta) GetIndexFilePaths() []string {
+	if m != nil {
+		return m.IndexFilePaths
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterEnum("milvus.proto.service.IndexStatus", IndexStatus_name, IndexStatus_value)
 	proto.RegisterType((*BuildIndexRequest)(nil), "milvus.proto.service.BuildIndexRequest")
@@ -447,46 +471,47 @@ func init() {
 func init() { proto.RegisterFile("index_builder.proto", fileDescriptor_c1d6a79d693ba681) }
 
 var fileDescriptor_c1d6a79d693ba681 = []byte{
-	// 611 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xb4, 0x55, 0xcb, 0x6e, 0xd3, 0x4c,
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-	0x06, 0x00, 0x00,
+	// 626 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xb4, 0x55, 0xdb, 0x6e, 0xd3, 0x4c,
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+	0x50, 0xc8, 0x14, 0xc7, 0x94, 0xa1, 0xec, 0xc1, 0xb2, 0x53, 0xb7, 0x58, 0x5a, 0x9e, 0xf5, 0x4d,
+	0x83, 0xc7, 0x05, 0xb4, 0x7f, 0x52, 0x22, 0xe9, 0x41, 0x33, 0xeb, 0xe6, 0x67, 0xca, 0x50, 0x8d,
+	0x4d, 0x97, 0x63, 0xdb, 0xa1, 0xb9, 0x02, 0xba, 0x6f, 0xe0, 0xff, 0x11, 0x72, 0x37, 0xa6, 0x0e,
+	0xc3, 0xdc, 0xcc, 0x1f, 0x76, 0xf2, 0xbd, 0x02, 0x8f, 0xee, 0x72, 0xfe, 0xc6, 0xc6, 0xcd, 0xe8,
+	0x15, 0x35, 0xf5, 0xb2, 0x73, 0x77, 0xf4, 0xea, 0xba, 0xf6, 0x65, 0x3e, 0x25, 0x90, 0x8d, 0xde,
+	0xba, 0xd7, 0x0c, 0x3d, 0xdf, 0x8c, 0x3d, 0x00, 0x0c, 0x2e, 0x12, 0x9c, 0x0b, 0xea, 0xa3, 0x51,
+	0x95, 0x87, 0x35, 0x19, 0xf9, 0x40, 0x7d, 0x24, 0xcf, 0x60, 0x9b, 0xbb, 0x0b, 0xf4, 0x12, 0xa6,
+	0x10, 0xeb, 0x12, 0xd1, 0x58, 0x06, 0x25, 0xa8, 0x0f, 0xbb, 0x72, 0x99, 0xe6, 0x6e, 0xe8, 0x47,
+	0x0c, 0x85, 0x82, 0x6e, 0x48, 0x68, 0x4b, 0x1e, 0x1d, 0xa9, 0x93, 0x14, 0xdf, 0xfd, 0x51, 0x81,
+	0x9a, 0x2c, 0xf5, 0x3d, 0x0a, 0x9b, 0x1c, 0xe4, 0xda, 0x52, 0xca, 0xdb, 0xea, 0x19, 0xe7, 0x6d,
+	0xe9, 0x2b, 0x6d, 0x55, 0xcb, 0xdb, 0x5a, 0x7f, 0xc0, 0x16, 0x39, 0x00, 0x3d, 0xc6, 0x0b, 0x69,
+	0xbb, 0x3e, 0x7c, 0x5e, 0xec, 0xe2, 0xde, 0xf3, 0x61, 0xa6, 0x9c, 0xc2, 0x2b, 0xb9, 0x59, 0x74,
+	0x25, 0x5f, 0x1c, 0x41, 0xfd, 0x56, 0x27, 0xc8, 0x16, 0x54, 0xa7, 0x67, 0xd3, 0x71, 0x73, 0x8d,
+	0x34, 0x60, 0xeb, 0x7c, 0x3a, 0xb1, 0xac, 0xf3, 0xf1, 0xa8, 0xa9, 0x91, 0x1d, 0x80, 0xc9, 0x74,
+	0x66, 0x9e, 0x9d, 0x98, 0x63, 0xcb, 0x6a, 0x56, 0xd2, 0xd3, 0xe3, 0xc9, 0x74, 0x62, 0x9d, 0x8e,
+	0x47, 0x4d, 0x7d, 0xf8, 0xab, 0x02, 0x2d, 0xa9, 0x22, 0xcb, 0xb1, 0xb2, 0xda, 0x88, 0x0d, 0xf0,
+	0xa7, 0x3c, 0x52, 0xd6, 0x40, 0xbb, 0xb7, 0x1a, 0x98, 0x2d, 0x40, 0x77, 0x8d, 0x30, 0xd8, 0x56,
+	0xcb, 0x91, 0xed, 0x06, 0x79, 0x59, 0x4c, 0x2e, 0xdc, 0xba, 0xf6, 0xab, 0x72, 0xe0, 0x9b, 0x6c,
+	0x97, 0xd0, 0xba, 0xf7, 0xa8, 0x90, 0x7e, 0xb1, 0xc8, 0x43, 0x8f, 0x56, 0x7b, 0x50, 0x1a, 0xbf,
+	0xcc, 0x7b, 0x78, 0xfa, 0xe9, 0xf8, 0x0b, 0x15, 0x8b, 0xc4, 0x49, 0x77, 0x7a, 0x70, 0x4d, 0x19,
+	0xa3, 0xd7, 0x02, 0xdd, 0xc5, 0x20, 0x53, 0x7a, 0xed, 0x51, 0x2e, 0x62, 0xea, 0x24, 0x02, 0xbd,
+	0x01, 0x0d, 0x04, 0xc6, 0x81, 0xcd, 0x06, 0x52, 0x7e, 0x20, 0xa7, 0xad, 0xfe, 0x4c, 0x91, 0xe3,
+	0x6c, 0xc8, 0xe8, 0xfe, 0xef, 0x00, 0x00, 0x00, 0xff, 0xff, 0x05, 0xa2, 0xa4, 0x63, 0xb3, 0x06,
+	0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
diff --git a/internal/writenode/client/client.go b/internal/writenode/client/client.go
index dd6e965c72..bfd07a905a 100644
--- a/internal/writenode/client/client.go
+++ b/internal/writenode/client/client.go
@@ -26,7 +26,7 @@ func (c *Client) DescribeSegment(semgentID UniqueID) (*SegmentDescription, error
 	return &SegmentDescription{}, nil
 }
 
-func (c *Client) GetInsertBinlogPaths(semgentID UniqueID) (map[int32]string, error) {
+func (c *Client) GetInsertBinlogPaths(semgentID UniqueID) (map[int32][]string, error) {
 	// query etcd
 	return nil, nil
 }