diff --git a/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/communication/AgentMessenger.java b/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/communication/AgentMessenger.java
index 111d4f5a..6270e345 100644
--- a/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/communication/AgentMessenger.java
+++ b/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/communication/AgentMessenger.java
@@ -3,6 +3,7 @@ package org.bench4q.master.infrastructure.communication;
 import java.io.File;
 import java.util.List;
 import java.util.UUID;
+import java.util.concurrent.Future;
 
 import org.bench4q.master.domain.entity.Agent;
 import org.bench4q.share.models.agent.RunScenarioModel;
@@ -25,4 +26,6 @@ public interface AgentMessenger {
 	public StopTestModel stop(Agent agent, UUID runId);
 
 	public ServerStatusModel getStatus(Agent agent);
+
+	public Future<ServerStatusModel> getStatusAsync(Agent agent);
 }
diff --git a/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/communication/impl/AgentMessengerImpl.java b/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/communication/impl/AgentMessengerImpl.java
index 5ef0fafd..43cb418e 100644
--- a/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/communication/impl/AgentMessengerImpl.java
+++ b/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/communication/impl/AgentMessengerImpl.java
@@ -4,6 +4,10 @@ import java.io.File;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.UUID;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
 
 import org.apache.log4j.Logger;
 import org.bench4q.master.domain.entity.Agent;
@@ -23,6 +27,7 @@ import org.springframework.stereotype.Component;
 @Component
 public class AgentMessengerImpl implements AgentMessenger {
 	private HttpRequester httpRequester;
+	private ExecutorService executorService = Executors.newCachedThreadPool();
 	private Logger logger = Logger.getLogger(AgentMessengerImpl.class);
 
 	private HttpRequester getHttpRequester() {
@@ -55,6 +60,17 @@ public class AgentMessengerImpl implements AgentMessenger {
 		}
 	}
 
+	public Future<RunScenarioResultModel> bookTestAsync(final Agent agent,
+			final int requiredLoad) {
+		return this.executorService
+				.submit(new Callable<RunScenarioResultModel>() {
+					@Override
+					public RunScenarioResultModel call() throws Exception {
+						return bookTest(agent, requiredLoad);
+					}
+				});
+	}
+
 	public RunScenarioResultModel submitScenrioWithParams(Agent agent,
 			UUID agentRunId, List<File> paramFiles,
 			final RunScenarioModel runScenarioModel) {
@@ -79,6 +95,19 @@ public class AgentMessengerImpl implements AgentMessenger {
 		}
 	}
 
+	public Future<RunScenarioResultModel> submitScenarioWithParamsAsync(
+			final Agent agent, final UUID agentRunId,
+			final List<File> paramFiles, final RunScenarioModel runScenarioModel) {
+		return this.executorService
+				.submit(new Callable<RunScenarioResultModel>() {
+					@Override
+					public RunScenarioResultModel call() throws Exception {
+						return submitScenrioWithParams(agent, agentRunId,
+								paramFiles, runScenarioModel);
+					}
+				});
+	}
+
 	public RunScenarioResultModel runWithParams(Agent agent, UUID agentRunId) {
 		HttpResponse httpResponse = null;
 		try {
@@ -100,6 +129,17 @@ public class AgentMessengerImpl implements AgentMessenger {
 		}
 	}
 
+	public Future<RunScenarioResultModel> runAsync(final Agent agent,
+			final UUID agentRunId) {
+		return this.executorService
+				.submit(new Callable<RunScenarioResultModel>() {
+					@Override
+					public RunScenarioResultModel call() throws Exception {
+						return runWithParams(agent, agentRunId);
+					}
+				});
+	}
+
 	// there is bug in here
 	public TestBriefStatusModel scriptBriefAll(Agent agent, UUID runId) {
 		HttpResponse httpResponse = null;
@@ -125,6 +165,17 @@ public class AgentMessengerImpl implements AgentMessenger {
 		}
 	}
 
+	public Future<TestBriefStatusModel> scriptBriefAsync(final Agent agent,
+			final UUID runId) {
+		return this.executorService
+				.submit(new Callable<TestBriefStatusModel>() {
+					@Override
+					public TestBriefStatusModel call() throws Exception {
+						return scriptBriefAll(agent, runId);
+					}
+				});
+	}
+
 	public StopTestModel stop(Agent agent, UUID runId) {
 		HttpResponse httpResponse;
 		try {
@@ -146,6 +197,16 @@ public class AgentMessengerImpl implements AgentMessenger {
 		}
 	}
 
+	public Future<StopTestModel> stopAsync(final Agent agent, final UUID runId) {
+		return this.executorService.submit(new Callable<StopTestModel>() {
+
+			@Override
+			public StopTestModel call() throws Exception {
+				return stop(agent, runId);
+			}
+		});
+	}
+
 	private String buildBaseUrl(Agent agent) {
 		return agent.getHostName() + ":" + agent.getPort();
 	}
@@ -165,4 +226,14 @@ public class AgentMessengerImpl implements AgentMessenger {
 			return null;
 		}
 	}
+
+	public Future<ServerStatusModel> getStatusAsync(final Agent agent) {
+		return this.executorService.submit(new Callable<ServerStatusModel>() {
+			@Override
+			public ServerStatusModel call() throws Exception {
+				return getStatus(agent);
+			}
+		});
+	}
+
 }
diff --git a/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/highavailable/impl/HighAvailablePoolImpl.java b/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/highavailable/impl/HighAvailablePoolImpl.java
index 56ae2acc..3fec4818 100644
--- a/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/highavailable/impl/HighAvailablePoolImpl.java
+++ b/Bench4Q-Master/src/main/java/org/bench4q/master/infrastructure/highavailable/impl/HighAvailablePoolImpl.java
@@ -7,9 +7,6 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
 import org.apache.log4j.Logger;
 import org.bench4q.master.domain.RunningAgentInterface;
@@ -37,7 +34,6 @@ public class HighAvailablePoolImpl extends CurrentLoadSubject implements
 	private Map<String, ServerStatusModel> agentStatusOfPreviousBeatMap;
 	private Map<UUID, RunningAgentInterface> agentRunBlotters;
 	private List<UUID> agentRunIdShouldBeSubstitute;
-	private ExecutorService excuExecutorService;
 	private long maxAvailableLoad;
 	private int currentAvailableLoad;
 	static Logger logger = Logger.getLogger(HighAvailablePoolImpl.class);
@@ -133,7 +129,6 @@ public class HighAvailablePoolImpl extends CurrentLoadSubject implements
 		this.setCurrentAvailableLoad(0);
 		this.setAgentRunIdShouldBeSubstitute(new LinkedList<UUID>());
 		this.setAgentRepository(agentRepository);
-		this.excuExecutorService = Executors.newCachedThreadPool();
 		initialPool();
 	}
 
@@ -152,8 +147,7 @@ public class HighAvailablePoolImpl extends CurrentLoadSubject implements
 	private void heartBeatsAndUpdateHAPool() {
 		Map<Agent, Future<ServerStatusModel>> map = new HashMap<Agent, Future<ServerStatusModel>>();
 		for (Agent agent : this.getPool().values()) {
-			HearBeat checkHearBeat = new HearBeat(agent, agentMessenger);
-			map.put(agent, this.excuExecutorService.submit(checkHearBeat));
+			map.put(agent, this.getAgentMessenger().getStatusAsync(agent));
 		}
 		this.updateAgentPoolByHeart(map);
 	}
@@ -166,7 +160,6 @@ public class HighAvailablePoolImpl extends CurrentLoadSubject implements
 			ServerStatusModel model;
 			try {
 				model = map.get(agent).get();
-
 				if (model == null) {
 					doForBreakDown(agent);
 				} else {
@@ -350,23 +343,3 @@ public class HighAvailablePoolImpl extends CurrentLoadSubject implements
 	}
 
 }
-
-class HearBeat implements Callable<ServerStatusModel> {
-	private Agent agent;
-	private AgentMessenger agentMessenger;
-
-	private AgentMessenger getAgentMessenger() {
-		return agentMessenger;
-	}
-
-	public HearBeat(Agent agent, AgentMessenger agentMessenger) {
-		this.agent = agent;
-		this.agentMessenger = agentMessenger;
-	}
-
-	@Override
-	public ServerStatusModel call() throws Exception {
-		// TODO Auto-generated method stub
-		return this.getAgentMessenger().getStatus(agent);
-	}
-}
\ No newline at end of file
diff --git a/Bench4Q-Master/src/test/java/stubs/Mock_AgentMessenger.java b/Bench4Q-Master/src/test/java/stubs/Mock_AgentMessenger.java
index 52509e26..39c4bea8 100644
--- a/Bench4Q-Master/src/test/java/stubs/Mock_AgentMessenger.java
+++ b/Bench4Q-Master/src/test/java/stubs/Mock_AgentMessenger.java
@@ -4,6 +4,7 @@ import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
+import java.util.concurrent.Future;
 
 import org.bench4q.master.domain.entity.Agent;
 import org.bench4q.master.infrastructure.communication.AgentMessenger;
@@ -17,6 +18,7 @@ import org.bench4q.share.models.agent.TestBriefStatusModel;
 import org.bench4q.share.models.agent.statistics.AgentBehaviorsBriefModel;
 import org.bench4q.share.models.agent.statistics.AgentBriefStatusModel;
 import org.bench4q.share.models.agent.statistics.AgentPagesBriefModel;
+import org.springframework.scheduling.annotation.AsyncResult;
 import org.springframework.stereotype.Component;
 
 @Component
@@ -83,4 +85,9 @@ public class Mock_AgentMessenger implements AgentMessenger {
 		}
 		return null;
 	}
+
+	@Override
+	public Future<ServerStatusModel> getStatusAsync(Agent agent) {
+		return new AsyncResult<ServerStatusModel>(getStatus(agent));
+	}
 }