diff --git a/austin-handler/src/main/java/com/java3y/austin/handler/config/HandlerThreadPoolConfig.java b/austin-handler/src/main/java/com/java3y/austin/handler/config/HandlerThreadPoolConfig.java
index bb1b988..ea785ea 100644
--- a/austin-handler/src/main/java/com/java3y/austin/handler/config/HandlerThreadPoolConfig.java
+++ b/austin-handler/src/main/java/com/java3y/austin/handler/config/HandlerThreadPoolConfig.java
@@ -15,7 +15,7 @@ import java.util.concurrent.TimeUnit;
  */
 public class HandlerThreadPoolConfig {
 
-    private static final String PRE_FIX = "austin.";
+    public static final String PRE_FIX = "austin.";
 
     private HandlerThreadPoolConfig() {
 
diff --git a/austin-handler/src/main/java/com/java3y/austin/handler/pending/TaskPendingHolder.java b/austin-handler/src/main/java/com/java3y/austin/handler/pending/TaskPendingHolder.java
index 19aec62..a8fb389 100644
--- a/austin-handler/src/main/java/com/java3y/austin/handler/pending/TaskPendingHolder.java
+++ b/austin-handler/src/main/java/com/java3y/austin/handler/pending/TaskPendingHolder.java
@@ -1,5 +1,6 @@
 package com.java3y.austin.handler.pending;
 
+import com.dtp.core.DtpRegistry;
 import com.dtp.core.thread.DtpExecutor;
 import com.java3y.austin.handler.config.HandlerThreadPoolConfig;
 import com.java3y.austin.handler.utils.GroupIdMappingUtils;
@@ -27,7 +28,6 @@ public class TaskPendingHolder {
     private static List<String> groupIds = GroupIdMappingUtils.getAllGroupIds();
     @Autowired
     private ThreadPoolUtils threadPoolUtils;
-    private Map<String, ExecutorService> holder = new HashMap<>(32);
 
     /**
      * 给每个渠道，每种消息类型初始化一个线程池
@@ -43,7 +43,6 @@ public class TaskPendingHolder {
             DtpExecutor executor = HandlerThreadPoolConfig.getExecutor(groupId);
             threadPoolUtils.register(executor);
 
-            holder.put(groupId, executor);
         }
     }
 
@@ -54,7 +53,7 @@ public class TaskPendingHolder {
      * @return
      */
     public ExecutorService route(String groupId) {
-        return holder.get(groupId);
+        return DtpRegistry.getExecutor(HandlerThreadPoolConfig.PRE_FIX + groupId);
     }