diff --git a/deployer/src/main/java/com/alibaba/otter/canal/deployer/CanalLauncher.java b/deployer/src/main/java/com/alibaba/otter/canal/deployer/CanalLauncher.java
index aa9ac603..839daa99 100644
--- a/deployer/src/main/java/com/alibaba/otter/canal/deployer/CanalLauncher.java
+++ b/deployer/src/main/java/com/alibaba/otter/canal/deployer/CanalLauncher.java
@@ -77,8 +77,9 @@ public class CanalLauncher {
                 });
             }
 
-            while (running)
-                ;
+            while (running) {
+                Thread.sleep(1000);
+            }
 
             if (managerDbConfigMonitor != null) {
                 managerDbConfigMonitor.destroy();
diff --git a/deployer/src/main/resources/example/instance.properties b/deployer/src/main/resources/example/instance.properties
index 30eb8b9e..03929772 100644
--- a/deployer/src/main/resources/example/instance.properties
+++ b/deployer/src/main/resources/example/instance.properties
@@ -45,8 +45,8 @@ canal.instance.filter.black.regex=
 
 # mq config
 canal.mq.topic=example
-# dynamic topic route by table regex
-#canal.mq.dynamicTopic=.*,mytest\\..*,mytest2.user
+# dynamic topic route by schema or table regex
+#canal.mq.dynamicTopic=.*,mytest,mytest\\..*,mytest2.user
 canal.mq.partition=0
 # hash partition config
 #canal.mq.partitionsNum=3