diff --git a/src/redis-shake/common/utils.go b/src/redis-shake/common/utils.go
index 1d5712e..8314cd5 100644
--- a/src/redis-shake/common/utils.go
+++ b/src/redis-shake/common/utils.go
@@ -35,7 +35,7 @@ func OpenRedisConn(target []string, auth_type, passwd string, isCluster bool, tl
 }
 
 func OpenRedisConnWithTimeout(target []string, auth_type, passwd string, readTimeout, writeTimeout time.Duration,
-		isCluster bool, tlsEnable bool) redigo.Conn {
+	isCluster bool, tlsEnable bool) redigo.Conn {
 	// return redigo.NewConn(OpenNetConn(target, auth_type, passwd), readTimeout, writeTimeout)
 	if isCluster {
 		cluster, err := redigoCluster.NewCluster(
@@ -1003,3 +1003,13 @@ var defaultDialFunction = func(addr string) (redigo.Conn, error) {
 	}
 	return c, nil
 }
+
+// HasAtLeastOnePrefix checks whether the key begins with at least one of prefixes.
+func HasAtLeastOnePrefix(key string, prefixes []string) bool {
+	for _, prefix := range prefixes {
+		if strings.HasPrefix(key, prefix) {
+			return true
+		}
+	}
+	return false
+}
diff --git a/src/redis-shake/common/utils_test.go b/src/redis-shake/common/utils_test.go
index e1a571c..88986e5 100644
--- a/src/redis-shake/common/utils_test.go
+++ b/src/redis-shake/common/utils_test.go
@@ -1,9 +1,9 @@
 package utils
 
 import (
-	"testing"
 	"fmt"
 	"sort"
+	"testing"
 
 	"github.com/stretchr/testify/assert"
 )
@@ -14,8 +14,8 @@ func TestGetAllClusterNode(t *testing.T) {
 		fmt.Printf("TestGetAllClusterNode case %d.\n", nr)
 		nr++
 
-		client := OpenRedisConn([]string{"10.1.1.1:21333"}, "auth", "123456", false)
-		ret, err := GetAllClusterNode(client, "master")
+		client := OpenRedisConn([]string{"10.1.1.1:21333"}, "auth", "123456", false, false)
+		ret, err := GetAllClusterNode(client, "master", "")
 		sort.Strings(ret)
 		assert.Equal(t, nil, err, "should be equal")
 		assert.Equal(t, 3, len(ret), "should be equal")
@@ -28,8 +28,8 @@ func TestGetAllClusterNode(t *testing.T) {
 		fmt.Printf("TestGetAllClusterNode case %d.\n", nr)
 		nr++
 
-		client := OpenRedisConn([]string{"10.1.1.1:21333"}, "auth", "123456", false)
-		ret, err := GetAllClusterNode(client, "slave")
+		client := OpenRedisConn([]string{"10.1.1.1:21333"}, "auth", "123456", false, false)
+		ret, err := GetAllClusterNode(client, "slave", "")
 		sort.Strings(ret)
 		assert.Equal(t, nil, err, "should be equal")
 		assert.Equal(t, 3, len(ret), "should be equal")
@@ -42,8 +42,8 @@ func TestGetAllClusterNode(t *testing.T) {
 		fmt.Printf("TestGetAllClusterNode case %d.\n", nr)
 		nr++
 
-		client := OpenRedisConn([]string{"10.1.1.1:21333"}, "auth", "123456", false)
-		ret, err := GetAllClusterNode(client, "all")
+		client := OpenRedisConn([]string{"10.1.1.1:21333"}, "auth", "123456", false, false)
+		ret, err := GetAllClusterNode(client, "all", "")
 		sort.Strings(ret)
 		assert.Equal(t, nil, err, "should be equal")
 		assert.Equal(t, 6, len(ret), "should be equal")
@@ -54,4 +54,36 @@ func TestGetAllClusterNode(t *testing.T) {
 		assert.Equal(t, "10.1.1.1:21335", ret[4], "should be equal")
 		assert.Equal(t, "10.1.1.1:21336", ret[5], "should be equal")
 	}
-}
\ No newline at end of file
+}
+
+func TestHasAtLeastOnePrefix(t *testing.T) {
+	cases := []struct {
+		key          string
+		prefixes     []string
+		expectResult bool
+	}{
+		{
+			// no prefix provided
+			"a",
+			[]string{},
+			false,
+		},
+		{
+			// has prefix
+			"abc",
+			[]string{"ab"},
+			true,
+		},
+		{
+			// does NOT have prefix
+			"abc",
+			[]string{"edf", "wab"},
+			false,
+		},
+	}
+
+	for _, c := range cases {
+		result := HasAtLeastOnePrefix(c.key, c.prefixes)
+		assert.Equal(t, c.expectResult, result)
+	}
+}
diff --git a/src/redis-shake/restore.go b/src/redis-shake/restore.go
index 5eb39a7..3b63c3a 100644
--- a/src/redis-shake/restore.go
+++ b/src/redis-shake/restore.go
@@ -167,7 +167,7 @@ func (dr *dbRestorer) restoreRDBFile(reader *bufio.Reader, target []string, auth
 								utils.SelectDB(c, lastdb)
 							}
 						}
-						if len(conf.Options.FilterKey) != 0 && !hasAtLeastOnePrefix(string(e.Key), conf.Options.FilterKey) {
+						if len(conf.Options.FilterKey) != 0 && !utils.HasAtLeastOnePrefix(string(e.Key), conf.Options.FilterKey) {
 							continue
 						}
 						utils.RestoreRdbEntry(c, e)
diff --git a/src/redis-shake/rump.go b/src/redis-shake/rump.go
index 4fb6679..e22b0a4 100644
--- a/src/redis-shake/rump.go
+++ b/src/redis-shake/rump.go
@@ -320,7 +320,7 @@ func (dre *dbRumperExecutor) writer() {
 	bucket := utils.StartQoS(conf.Options.Qps)
 	preDb := 0
 	for ele := range dre.keyChan {
-		if len(conf.Options.FilterKey) != 0 && !hasAtLeastOnePrefix(ele.key, conf.Options.FilterKey) {
+		if len(conf.Options.FilterKey) != 0 && !utils.HasAtLeastOnePrefix(ele.key, conf.Options.FilterKey) {
 			continue
 		}
 		// QoS, limit the qps
diff --git a/src/redis-shake/sync.go b/src/redis-shake/sync.go
index 78aac48..90f51ab 100644
--- a/src/redis-shake/sync.go
+++ b/src/redis-shake/sync.go
@@ -426,7 +426,7 @@ func (ds *dbSyncer) syncRDBFile(reader *bufio.Reader, target []string, auth_type
 						}
 
 						if len(conf.Options.FilterKey) != 0 {
-							if hasAtLeastOnePrefix(string(e.Key), conf.Options.FilterKey) {
+							if utils.HasAtLeastOnePrefix(string(e.Key), conf.Options.FilterKey) {
 								utils.RestoreRdbEntry(c, e)
 							}
 						} else if len(conf.Options.FilterSlot) > 0 {
diff --git a/src/redis-shake/utils.go b/src/redis-shake/utils.go
deleted file mode 100644
index 0f21279..0000000
--- a/src/redis-shake/utils.go
+++ /dev/null
@@ -1,13 +0,0 @@
-package run
-
-import "strings"
-
-// hasAtLeastOnePrefix checks whether the key has begins with at least one of prefixes.
-func hasAtLeastOnePrefix(key string, prefixes []string) bool {
-	for _, prefix := range prefixes {
-		if strings.HasPrefix(key, prefix) {
-			return true
-		}
-	}
-	return false
-}
diff --git a/src/redis-shake/utils_test.go b/src/redis-shake/utils_test.go
deleted file mode 100644
index 77a3353..0000000
--- a/src/redis-shake/utils_test.go
+++ /dev/null
@@ -1,40 +0,0 @@
-package run
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestHasAtLeastOnePrefix(t *testing.T) {
-
-	cases := []struct {
-		key          string
-		prefixes     []string
-		expectResult bool
-	}{
-		{
-			// no prefix provided
-			"a",
-			[]string{},
-			false,
-		},
-		{
-			// has prefix
-			"abc",
-			[]string{"ab"},
-			true,
-		},
-		{
-			// does NOT have prefix
-			"abc",
-			[]string{"edf", "wab"},
-			false,
-		},
-	}
-
-	for _, c := range cases {
-		result := hasAtLeastOnePrefix(c.key, c.prefixes)
-		assert.Equal(t, c.expectResult, result)
-	}
-}