diff --git a/workspace-gateway/src/main/java/com/aliware/tianchi/UserLoadBalance.java b/workspace-gateway/src/main/java/com/aliware/tianchi/UserLoadBalance.java
index 401a0804276dfafb070f771c135797474207eeda..a184f07c72549f9fa1afd4a0cecb16a6cf485d82 100644
--- a/workspace-gateway/src/main/java/com/aliware/tianchi/UserLoadBalance.java
+++ b/workspace-gateway/src/main/java/com/aliware/tianchi/UserLoadBalance.java
@@ -21,9 +21,9 @@ public class UserLoadBalance implements LoadBalance {
 
     @Override
     public <T> Invoker<T> select(List<Invoker<T>> invokers, URL url, Invocation invocation) throws RpcException {
-        //int[] invoker_list = {0, 1, 1, 2, 2, 2};
-        //int id = ThreadLocalRandom.current().nextInt(invoker_list.length);
-        //return invokers.get(invoker_list[id]);
-        return invokers.get(0);
+        int[] invoker_list = {0, 1, 1, 2, 2, 2};
+        int id = ThreadLocalRandom.current().nextInt(6);
+        //System.out.println("Send one request to " + invoker_list[id]);
+        return invokers.get(invoker_list[id]);
     }
 }