update

@@ -183,7 +183,7 @@ public class MemcachedMonitorImpl {
                 try {
                     MemcachedClient client = builder.build();
                     long setTime = System.currentTimeMillis();
-                    client.set("hello",0,"Hello");
+                    client.set("hello",3,"Hello");
                     client.get("hello");
                     long diff = System.currentTimeMillis()-setTime;
                     info.setDiff(diff);