diff --git a/demo/sequencer/common/README.md b/demo/sequencer/common/README.md
new file mode 100644
index 0000000000..43ef686050
--- /dev/null
+++ b/demo/sequencer/common/README.md
@@ -0,0 +1,6 @@
+You can run this demo with different component names.
+For example:
+```go
+go build -o client
+./client -s "state_demo"
+```
diff --git a/demo/sequencer/common/client.go b/demo/sequencer/common/client.go
index 87dd634269..14c93a2258 100644
--- a/demo/sequencer/common/client.go
+++ b/demo/sequencer/common/client.go
@@ -40,6 +40,7 @@ func main() {
 			Metadata:  nil,
 		})
 		if err != nil {
+			fmt.Print(err)
 			return
 		}
 		fmt.Printf("Next id:%v \n", id)
diff --git a/demo/sequencer/in-memory/client.go b/demo/sequencer/in-memory/client.go
deleted file mode 100644
index c4ec224744..0000000000
--- a/demo/sequencer/in-memory/client.go
+++ /dev/null
@@ -1,39 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-
-	client "mosn.io/layotto/sdk/go-sdk/client"
-	runtimev1pb "mosn.io/layotto/spec/proto/runtime/v1"
-)
-
-const (
-	key       = "key666"
-	storeName = "in-memory"
-)
-
-func main() {
-
-	cli, err := client.NewClient()
-	if err != nil {
-		panic(err)
-	}
-	defer cli.Close()
-	ctx := context.Background()
-	fmt.Printf("Try to get next id.Key:%s \n", key)
-	for i := 0; i < 10; i++ {
-		id, err := cli.GetNextId(ctx, &runtimev1pb.GetNextIdRequest{
-			StoreName: storeName,
-			Key:       key,
-			Options:   nil,
-			Metadata:  nil,
-		})
-		if err != nil {
-			fmt.Print(err)
-			return
-		}
-		fmt.Printf("Next id:%v \n", id)
-	}
-	fmt.Println("Demo success!")
-}
diff --git a/demo/sequencer/mongo/client.go b/demo/sequencer/mongo/client.go
deleted file mode 100644
index a07a26663f..0000000000
--- a/demo/sequencer/mongo/client.go
+++ /dev/null
@@ -1,39 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-
-	client "mosn.io/layotto/sdk/go-sdk/client"
-	runtimev1pb "mosn.io/layotto/spec/proto/runtime/v1"
-)
-
-const (
-	key       = "key666"
-	storeName = "mongo"
-)
-
-func main() {
-
-	cli, err := client.NewClient()
-	if err != nil {
-		panic(err)
-	}
-	defer cli.Close()
-	ctx := context.Background()
-	fmt.Printf("Try to get next id.Key:%s \n", key)
-	for i := 0; i < 10; i++ {
-		id, err := cli.GetNextId(ctx, &runtimev1pb.GetNextIdRequest{
-			StoreName: storeName,
-			Key:       key,
-			Options:   nil,
-			Metadata:  nil,
-		})
-		if err != nil {
-			fmt.Print(err)
-			return
-		}
-		fmt.Printf("Next id:%v \n", id)
-	}
-	fmt.Println("Demo success!")
-}
diff --git a/demo/sequencer/redis/client.go b/demo/sequencer/redis/client.go
deleted file mode 100644
index 5e06050a71..0000000000
--- a/demo/sequencer/redis/client.go
+++ /dev/null
@@ -1,39 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-
-	client "mosn.io/layotto/sdk/go-sdk/client"
-	runtimev1pb "mosn.io/layotto/spec/proto/runtime/v1"
-)
-
-const (
-	key       = "key666"
-	storeName = "redis"
-)
-
-func main() {
-
-	cli, err := client.NewClient()
-	if err != nil {
-		panic(err)
-	}
-	defer cli.Close()
-	ctx := context.Background()
-	fmt.Printf("Try to get next id.Key:%s \n", key)
-	for i := 0; i < 10; i++ {
-		id, err := cli.GetNextId(ctx, &runtimev1pb.GetNextIdRequest{
-			StoreName: storeName,
-			Key:       key,
-			Options:   nil,
-			Metadata:  nil,
-		})
-		if err != nil {
-			fmt.Print(err)
-			return
-		}
-		fmt.Printf("Next id:%v \n", id)
-	}
-	fmt.Println("Demo success!")
-}
diff --git a/demo/sequencer/zookeeper/client.go b/demo/sequencer/zookeeper/client.go
deleted file mode 100644
index 5b9dc1674b..0000000000
--- a/demo/sequencer/zookeeper/client.go
+++ /dev/null
@@ -1,39 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-
-	client "mosn.io/layotto/sdk/go-sdk/client"
-	runtimev1pb "mosn.io/layotto/spec/proto/runtime/v1"
-)
-
-const (
-	key       = "test"
-	storeName = "zookeeper"
-)
-
-func main() {
-
-	cli, err := client.NewClient()
-	if err != nil {
-		panic(err)
-	}
-	defer cli.Close()
-	ctx := context.Background()
-	fmt.Printf("Try to get next id.Key:%s \n", key)
-	for i := 0; i < 10; i++ {
-		id, err := cli.GetNextId(ctx, &runtimev1pb.GetNextIdRequest{
-			StoreName: storeName,
-			Key:       key,
-			Options:   nil,
-			Metadata:  nil,
-		})
-		if err != nil {
-			fmt.Println(err)
-			return
-		}
-		fmt.Printf("Next id:%v \n", id)
-	}
-	fmt.Println("Demo success!")
-}