--- a/src/alice/topology/manager/keeparive/TaskExecuter.java	Mon Mar 24 23:52:20 2014 +0900
+++ b/src/alice/topology/manager/keeparive/TaskExecuter.java	Mon Mar 31 22:28:52 2014 +0900
@@ -25,7 +25,7 @@
 
 	@Override
 	public synchronized void run()  {
-		ListManager list = info.asClass(ListManager.class);	
+		ListManager list = info.asClass(ListManager.class);
 		if (list.getTaskList().size() == 0){
 			if (remainingTime !=0){
 				TaskInfo info = new TaskInfo(TaskType.SKIP);
@@ -53,28 +53,37 @@
 					e.printStackTrace();
 				}
 			}
-			setNowTask(null);
-			startTime = 0;
+			
 			
 			if (!skipFlag){
-				// ping or close
-				/*
-				if (nowTask.getType() == TaskType.PING) {
-					ods.ping(nowTask.getManagerKey(), nowTask.getReturnKey());
-					TaskInfo task = new TaskInfo(TaskType.CLOSE);
-					task.setInfo(nowTask.getManagerKey(), 60 * 1000);
-					ods.put("_TASKINFO", task);
-					new RespondPing(nowTask.getReturnKey());
-				} else {
-					// no response from the Remote DataSegment. So close this connection.
-					DataSegment.get(nowTask.getManagerKey()).close();
-				}
-				 */	
+				execTask();
 			}
+			setNowTask(null);
+			startTime = 0;
 		}
 		setKey();
 	}
 
+	private synchronized void execTask(){
+		// ping or close
+		System.out.println("aaaa");
+		if (nowTask.getType() == TaskType.PING) {
+			System.out.println("bbb");
+			ods.ping(nowTask.getManagerKey(), nowTask.getReturnKey());
+			TaskInfo task = new TaskInfo(TaskType.CLOSE);
+			task.setInfo(nowTask.getManagerKey(), 10 * 1000);
+			ods.put("_TASKINFO", task);
+			new RespondPing(nowTask.getReturnKey());
+		} else if (nowTask.getType() == TaskType.CLOSE) {
+			// no response from the Remote DataSegment. So close this connection.
+			//DataSegment.get(nowTask.getManagerKey()).close();
+			System.out.println("CLOSE");
+			
+			nowTask.show();
+			System.exit(0);
+		}
+	}
+	
 	public synchronized void skip() {
 		skipFlag = true;
 		if (startTime == 0){
@@ -82,8 +91,10 @@
 		} else {
 			remainingTime = nowTask.getSleepTime() - (System.currentTimeMillis() - startTime);
 		}
+		System.out.println(remainingTime);
 		nowTask = null;
 		notify();
+		System.out.println(nowTask);
 	}
 
 	public synchronized void ignore() {
@@ -93,7 +104,7 @@
 		notify();
 	}
 
-	public TaskInfo getNowTask() {
+	public synchronized TaskInfo getNowTask() {
 		return nowTask;
 	}
 
@@ -113,12 +124,6 @@
 		}
 	}
 
-	public long initRemainingTime() {
-		long time = remainingTime;
-		remainingTime = 0;
-		return time;
-	}
-
 	public boolean compareNowTask(TaskInfo task) {
 		if (nowTask != null){
 			if (nowTask.getType().equals(task.getType())