diff --git a/consumer/README.md b/consumer/README.md
index 31970bd6..5a99beba 100644
--- a/consumer/README.md
+++ b/consumer/README.md
@@ -77,7 +77,7 @@ consumerWorker.Start()
 
 ```
 ch:=make(chan os.Signal) //将os信号值作为信道
-signal.Notify(ch)
+signal.Notify(ch, os.Kill, os.Interrupt)
 consumerWorker.Start() 
 if _, ok := <-ch; ok { // 当获取到os停止信号以后，例如ctrl+c触发的os信号，会调用消费者退出方法进行退出。
     consumerWorker.StopAndWait() 
diff --git a/example/consumer/copy_data/copy_data.go b/example/consumer/copy_data/copy_data.go
index 2c8d1d4b..fa81f9b8 100644
--- a/example/consumer/copy_data/copy_data.go
+++ b/example/consumer/copy_data/copy_data.go
@@ -2,11 +2,12 @@ package main
 
 import (
 	"fmt"
-	"github.com/aliyun/aliyun-log-go-sdk"
-	"github.com/aliyun/aliyun-log-go-sdk/consumer"
-	"github.com/go-kit/kit/log/level"
 	"os"
 	"os/signal"
+
+	sls "github.com/aliyun/aliyun-log-go-sdk"
+	consumerLibrary "github.com/aliyun/aliyun-log-go-sdk/consumer"
+	"github.com/go-kit/kit/log/level"
 )
 
 // README :
@@ -47,7 +48,7 @@ func main() {
 	}
 	consumerWorker := consumerLibrary.InitConsumerWorker(option, process)
 	ch := make(chan os.Signal)
-	signal.Notify(ch)
+	signal.Notify(ch, os.Kill, os.Interrupt)
 	consumerWorker.Start()
 	if _, ok := <-ch; ok {
 		level.Info(consumerWorker.Logger).Log("msg", "get stop signal, start to stop consumer worker", "consumer worker name", option.ConsumerName)
diff --git a/example/producer/native_pb_demo.go b/example/producer/native_pb_demo.go
index f456624e..79fef074 100644
--- a/example/producer/native_pb_demo.go
+++ b/example/producer/native_pb_demo.go
@@ -19,7 +19,7 @@ func main() {
 	producerConfig.AccessKeySecret = os.Getenv("AccessKeySecret")
 	producerInstance := producer.InitProducer(producerConfig)
 	ch := make(chan os.Signal)
-	signal.Notify(ch)
+	signal.Notify(ch, os.Kill, os.Interrupt)
 	producerInstance.Start()
 	var m sync.WaitGroup
 	for i := 0; i < 10; i++ {
diff --git a/example/producer/performance_test_demo.go b/example/producer/performance_test_demo.go
index 0264232b..0ffeae66 100644
--- a/example/producer/performance_test_demo.go
+++ b/example/producer/performance_test_demo.go
@@ -2,14 +2,15 @@ package main
 
 import (
 	"fmt"
-	"github.com/aliyun/aliyun-log-go-sdk"
-	"github.com/aliyun/aliyun-log-go-sdk/producer"
-	"github.com/gogo/protobuf/proto"
 	"math/rand"
 	"os"
 	"os/signal"
 	"runtime"
 	"time"
+
+	sls "github.com/aliyun/aliyun-log-go-sdk"
+	"github.com/aliyun/aliyun-log-go-sdk/producer"
+	"github.com/gogo/protobuf/proto"
 )
 
 var valueList [][]*string
@@ -28,7 +29,7 @@ func main() {
 
 	producerInstance := producer.InitProducer(producerConfig)
 	ch := make(chan os.Signal)
-	signal.Notify(ch)
+	signal.Notify(ch, os.Kill, os.Interrupt)
 	producerInstance.Start()
 	fmt.Println("start send logs")
 	for i := 0; i < 10; i++ {
diff --git a/example/producer/producer_simple_demo.go b/example/producer/producer_simple_demo.go
index c29fc4e9..c88ec588 100644
--- a/example/producer/producer_simple_demo.go
+++ b/example/producer/producer_simple_demo.go
@@ -17,7 +17,7 @@ func main() {
 	producerConfig.AccessKeySecret = os.Getenv("AccessKeySecret")
 	producerInstance := producer.InitProducer(producerConfig)
 	ch := make(chan os.Signal)
-	signal.Notify(ch)
+	signal.Notify(ch, os.Kill, os.Interrupt)
 	producerInstance.Start()
 	var m sync.WaitGroup
 	for i := 0; i < 10; i++ {
diff --git a/example/producer/simple_callback_demo.go b/example/producer/simple_callback_demo.go
index 026b756e..e5616ff2 100644
--- a/example/producer/simple_callback_demo.go
+++ b/example/producer/simple_callback_demo.go
@@ -36,7 +36,7 @@ func main() {
 	producerConfig.AccessKeySecret = os.Getenv("AccessKeySecret")
 	producerInstance := producer.InitProducer(producerConfig)
 	ch := make(chan os.Signal)
-	signal.Notify(ch)
+	signal.Notify(ch, os.Kill, os.Interrupt)
 	producerInstance.Start()
 	var m sync.WaitGroup
 	callBack := &Callback{}
diff --git a/example/producer/use_ststoken_demo.go b/example/producer/use_ststoken_demo.go
index 6a71faad..6818af8b 100644
--- a/example/producer/use_ststoken_demo.go
+++ b/example/producer/use_ststoken_demo.go
@@ -20,7 +20,7 @@ func main() {
 	producerConfig.UpdateStsToken = updateStsToken
 	producerInstance := producer.InitProducer(producerConfig)
 	ch := make(chan os.Signal)
-	signal.Notify(ch)
+	signal.Notify(ch, os.Kill, os.Interrupt)
 	producerInstance.Start()
 	var m sync.WaitGroup
 	for i := 0; i < 10; i++ {
diff --git a/log_store.go b/log_store.go
index d280bab4..e4e5589c 100644
--- a/log_store.go
+++ b/log_store.go
@@ -754,27 +754,15 @@ func (s *LogStore) UpdateIndexString(indexStr string) error {
 
 // DeleteIndex ...
 func (s *LogStore) DeleteIndex() error {
-	type Body struct {
-		project string `json:"projectName"`
-		store   string `json:"logstoreName"`
-	}
-
-	body, err := json.Marshal(Body{
-		project: s.project.Name,
-		store:   s.Name,
-	})
-	if err != nil {
-		return err
-	}
 
 	h := map[string]string{
-		"x-log-bodyrawsize": fmt.Sprintf("%v", len(body)),
+		"x-log-bodyrawsize": "0",
 		"Content-Type":      "application/json",
 		"Accept-Encoding":   "deflate", // TODO: support lz4
 	}
 
 	uri := fmt.Sprintf("/logstores/%s/index", s.Name)
-	r, err := request(s.project, "DELETE", uri, h, body)
+	r, err := request(s.project, "DELETE", uri, h, nil)
 	if r != nil {
 		r.Body.Close()
 	}
@@ -783,27 +771,14 @@ func (s *LogStore) DeleteIndex() error {
 
 // GetIndex ...
 func (s *LogStore) GetIndex() (*Index, error) {
-	type Body struct {
-		project string `json:"projectName"`
-		store   string `json:"logstoreName"`
-	}
-
-	body, err := json.Marshal(Body{
-		project: s.project.Name,
-		store:   s.Name,
-	})
-	if err != nil {
-		return nil, err
-	}
-
 	h := map[string]string{
-		"x-log-bodyrawsize": fmt.Sprintf("%v", len(body)),
 		"Content-Type":      "application/json",
-		"Accept-Encoding":   "deflate", // TODO: support lz4
+		"x-log-bodyrawsize": "0",
+		"Accept-Encoding":   "deflate",
 	}
 
 	uri := fmt.Sprintf("/logstores/%s/index", s.Name)
-	r, err := request(s.project, "GET", uri, h, body)
+	r, err := request(s.project, "GET", uri, h, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -820,27 +795,14 @@ func (s *LogStore) GetIndex() (*Index, error) {
 
 // GetIndexString ...
 func (s *LogStore) GetIndexString() (string, error) {
-	type Body struct {
-		project string `json:"projectName"`
-		store   string `json:"logstoreName"`
-	}
-
-	body, err := json.Marshal(Body{
-		project: s.project.Name,
-		store:   s.Name,
-	})
-	if err != nil {
-		return "", err
-	}
-
 	h := map[string]string{
-		"x-log-bodyrawsize": fmt.Sprintf("%v", len(body)),
 		"Content-Type":      "application/json",
-		"Accept-Encoding":   "deflate", // TODO: support lz4
+		"x-log-bodyrawsize": "0",
+		"Accept-Encoding":   "deflate",
 	}
 
 	uri := fmt.Sprintf("/logstores/%s/index", s.Name)
-	r, err := request(s.project, "GET", uri, h, body)
+	r, err := request(s.project, "GET", uri, h, nil)
 	if err != nil {
 		return "", err
 	}
diff --git a/producer/README.md b/producer/README.md
index 5a921b88..d7702e65 100644
--- a/producer/README.md
+++ b/producer/README.md
@@ -47,7 +47,7 @@ producerConfig.AccessKeyID = os.Getenv("AccessKeyID")
 producerConfig.AccessKeySecret = os.Getenv("AccessKeySecret")
 producerInstance:=producer.InitProducer(producerConfig)
 ch := make(chan os.Signal)
-signal.Notify(ch)
+signal.Notify(ch, os.Kill, os.Interrupt)
 producerInstance.Start() // 启动producer实例
 ```
 
diff --git a/producer/callback_test.go b/producer/callback_test.go
index aa3dbe84..a0bf29ec 100644
--- a/producer/callback_test.go
+++ b/producer/callback_test.go
@@ -9,8 +9,6 @@ import (
 	"time"
 )
 
-
-
 type Callback struct {
 	t *testing.T
 }
@@ -34,7 +32,6 @@ func (callback *Callback) Fail(result *Result) {
 		callback.t.Error("Failed to get error code")
 	}
 
-
 }
 
 func TestProducer_CallBack(t *testing.T) {
@@ -44,7 +41,7 @@ func TestProducer_CallBack(t *testing.T) {
 	producerConfig.AccessKeySecret = ""
 	producerInstance := InitProducer(producerConfig)
 	ch := make(chan os.Signal)
-	signal.Notify(ch)
+	signal.Notify(ch, os.Kill, os.Interrupt)
 	producerInstance.Start()
 	var m sync.WaitGroup
 	callBack := &Callback{}
@@ -68,7 +65,4 @@ func TestProducer_CallBack(t *testing.T) {
 		producerInstance.Close(60000)
 	}
 
-
-
-
-}
\ No newline at end of file
+}