--- a/src/main/java/alice/datasegment/LocalDataSegmentManager.java	Wed Dec 10 18:47:21 2014 +0900
+++ b/src/main/java/alice/datasegment/LocalDataSegmentManager.java	Wed Dec 10 20:31:09 2014 +0900
@@ -64,6 +64,11 @@
         return dataSegmentKey;
     }
 
+    public void removeDataSegmentKey(String key) {
+        if (key!=null)
+            dataSegments.remove(key);
+    }
+
     @Override
     public void put(String key, ReceiveData rData, SendOption option) {
         DataSegmentKey dataSegmentKey = getDataSegmentKey(key);

--- a/src/main/java/alice/topology/manager/ParentManager.java	Wed Dec 10 18:47:21 2014 +0900
+++ b/src/main/java/alice/topology/manager/ParentManager.java	Wed Dec 10 20:31:09 2014 +0900
@@ -77,6 +77,7 @@
             if (counter==position)
                 System.out.print("P ");
             System.out.print(p.getName()+" "+p.children()+" | ");
+            counter++;
         }
     }
 }

--- a/src/main/java/alice/topology/manager/keeparive/CatchDisconnectEvent.java	Wed Dec 10 18:47:21 2014 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,14 +0,0 @@
-package alice.topology.manager.keeparive;
-
-import alice.codesegment.CloseEventCodeSegment;
-import alice.daemon.ConnectionInfo;
-
-public class CatchDisconnectEvent extends CloseEventCodeSegment{
-
-    @Override
-    public void run() {
-        ConnectionInfo e = getConnectionInfo();
-        System.out.println("IPAddr "+ e.addr);
-        System.out.println("port "+ e.port);
-    }
-}

--- a/src/main/java/alice/topology/manager/keeparive/ListManager.java	Wed Dec 10 18:47:21 2014 +0900
+++ b/src/main/java/alice/topology/manager/keeparive/ListManager.java	Wed Dec 10 20:31:09 2014 +0900
@@ -2,6 +2,8 @@
 
 import java.util.LinkedList;
 
+import alice.datasegment.DataSegment;
+
 public class ListManager {
     private LinkedList<TaskInfo> list = new LinkedList<TaskInfo>();
 
@@ -91,6 +93,7 @@
                 TaskExecuter.getInstance().skip();
             }
         }
+        DataSegment.getLocal().removeDataSegmentKey("_FORM_"+name);
         task = new TaskInfo(TaskType.CLOSE);
         task.setInfo(name, 0);
         while(deleteTask(task));

--- a/src/main/java/alice/topology/manager/keeparive/RespondPing.java	Wed Dec 10 18:47:21 2014 +0900
+++ b/src/main/java/alice/topology/manager/keeparive/RespondPing.java	Wed Dec 10 20:31:09 2014 +0900
@@ -6,7 +6,7 @@
 
 public class RespondPing extends CodeSegment{
     private Receiver respond = ids.create(CommandType.TAKE);
-//    private long pingedTime = System.currentTimeMillis();
+    private long pingedTime = System.currentTimeMillis();
 
     public RespondPing(String key) {
         respond.setKey(key);
@@ -15,8 +15,8 @@
     @Override
     public void run() {
         RespondData d = respond.asClass(RespondData.class);
-//        System.out.print("ping from "+d.from);
-//        System.out.println(" Recieved time "+(d.time - pingedTime));
+        System.out.print("ping from "+d.from);
+        System.out.println(" Recieved time "+(d.time - pingedTime));
 //        if (d.time - pingedTime > 60 * 1000){
 //            // need check, this connection is alive. may be close
 //            if (DataSegment.contains(d.from))