1. CanalController stop 需要同时将 embededCanalServer.stop (#4477)

2. ServerRunningMonitor 线程池未正常回收，线程池管理与 start/stop保持一致

deployer/src/main/java/com/alibaba/otter/canal/deployer/CanalController.java

@@ -558,6 +558,11 @@ public class CanalController {
         }
 
         ZkClientx.clearClients();
+
+        // 需要释放 CanalServerWithEmbedded 否则主线程退出后，进程无法自动完整退出...
+        if (embededCanalServer != null) {
+            embededCanalServer.stop();
+        }
     }
 
     private void initCid(String path) {