--- a/src/main/java/alice/topology/manager/CheckComingHost.java	Sat Jan 17 16:49:02 2015 +0900
+++ b/src/main/java/alice/topology/manager/CheckComingHost.java	Wed Jan 21 14:08:26 2015 +0900
@@ -1,6 +1,7 @@
 package alice.topology.manager;
 
 import java.util.HashMap;
+
 import alice.codesegment.CodeSegment;
 import alice.datasegment.CommandType;
 import alice.datasegment.Receiver;
@@ -10,10 +11,12 @@
     // checkIncomingHost
     private Receiver host = ids.create(CommandType.TAKE);
     private Receiver absCookieTable = ids.create(CommandType.PEEK); // cookie, AbsName HashMap
+    private Receiver config = ids.create(CommandType.PEEK);
 
     public CheckComingHost(){
         this.host.setKey("host");
         this.absCookieTable.setKey("absCookieTable");
+        this.config.setKey("TMConfig");
     }
 
     @Override
@@ -21,6 +24,7 @@
         HostMessage host = this.host.asClass(HostMessage.class);
         @SuppressWarnings("unchecked")
         HashMap<String, String> absCookieTable = this.absCookieTable.asClass(HashMap.class);
+        TopologyManagerConfig conf = this.config.asClass(TopologyManagerConfig.class);
         boolean match = false;
         // check cookie
         if (host.cookie != null) {
@@ -34,7 +38,14 @@
         if (match){
             // coming host has ever joined this App
             ods.put("reconnectHost", host);
-            new SearchHostName();
+            if (conf.dynamic) { //dynamic topology
+                if (conf.type == TopologyType.Tree) {
+                    ods.put("orderHash", "order");
+                    ods.put("newHost", host);
+                }
+            } else { // static topology
+                new SearchHostName();
+            }
         } else {
             ods.put("orderHash", "order");
             ods.put("newHost", host);