diff --git a/examples/client.go b/examples/client.go
index 357886b..078ff8c 100644
--- a/examples/client.go
+++ b/examples/client.go
@@ -66,8 +66,8 @@ func main() {
 	var r realis.Realis
 
 	var defaultBackoff = &realis.Backoff{
-		Steps:    5,
-		Duration: 5 * time.Second,
+		Steps:    2,
+		Duration: 10 * time.Second,
 		Factor:   2.0,
 		Jitter:   0.1,
 	}
@@ -84,16 +84,12 @@ func main() {
 		}
 		fmt.Printf("cluster: %+v \n", cluster)
 
-		r, err = realis.NewRealisClient(realis.ZKCluster(cluster), realis.BasicAuth(*username, *password), realis.ThriftJSON(), realis.TimeoutMS(15000))
+		//r, err = realis.NewRealisClient(realis.ZKCluster(cluster), realis.BasicAuth(*username, *password), realis.ThriftJSON(), realis.TimeoutMS(15000))
+		r, err = realis.NewRealisClient(realis.ZKUrl(*zkUrl), realis.BasicAuth(*username, *password), realis.ThriftJSON(), realis.TimeoutMS(15000), realis.BackOff(defaultBackoff))
 		if err != nil {
 			fmt.Println(err)
 			os.Exit(1)
 		}
-		//r, err = realis.NewDefaultClientUsingCluster(cluster, *username, *password)
-		//if err != nil {
-		//	fmt.Println(err)
-		//	os.Exit(1)
-		//}
 		monitor = &realis.Monitor{r}
 
 	} else {
diff --git a/realis.go b/realis.go
index 0e47340..ac78408 100644
--- a/realis.go
+++ b/realis.go
@@ -92,6 +92,12 @@ func ZKCluster(cluster *Cluster) option {
 	}
 }
 
+func ZKUrl(url string) option {
+	return func(config *RealisConfig) {
+		config.cluster = GetDefaultClusterFromZKUrl(url)
+	}
+}
+
 func Retries(backoff *Backoff) option {
 	return func(config *RealisConfig) {
 		config.backoff = backoff
@@ -433,8 +439,6 @@ func (r *realisClient) ReestablishConn() error {
 		}
 		// Configured for basic-auth
 		AddBasicAuth(r.config, r.config.username, r.config.password)
-		//config.cluster = r.config.cluster
-		//r.config = config
 		r.client = aurora.NewAuroraSchedulerManagerClientFactory(r.config.transport, r.config.protoFactory)
 		r.readonlyClient = aurora.NewReadOnlySchedulerClientFactory(r.config.transport, r.config.protoFactory)
 	} else if r.config.url != "" && r.config.username != "" && r.config.password != "" {