diff --git a/src/main/java/com/thinker/sql/SourceFromMySQL.java b/src/main/java/com/thinker/sql/SourceFromMySQL.java
index 1544e57..ad208af 100644
--- a/src/main/java/com/thinker/sql/SourceFromMySQL.java
+++ b/src/main/java/com/thinker/sql/SourceFromMySQL.java
@@ -73,6 +73,7 @@ public class SourceFromMySQL extends RichSourceFunction<Student> {
 
     @Override
     public void cancel() {
+
     }
 
     private static Connection getConnection() {
diff --git a/src/main/java/com/thinker/util/KafkaUtils.java b/src/main/java/com/thinker/util/KafkaUtils.java
index 5b87997..9e9f97d 100644
--- a/src/main/java/com/thinker/util/KafkaUtils.java
+++ b/src/main/java/com/thinker/util/KafkaUtils.java
@@ -34,7 +34,7 @@ public class KafkaUtils {
         Map<String, Object> fields = new HashMap<>();
 
         tags.put("cluster", "zhisheng");
-        tags.put("host_ip", "101.147.022.106");
+        tags.put("host_ip", "127.0.0.1");
 
         fields.put("used_percent", 90d);
         fields.put("max", 27244873d);
@@ -53,8 +53,8 @@ public class KafkaUtils {
 
     public static void main(String[] args) throws InterruptedException {
         while (true) {
-            Thread.sleep(300);
             writeToKafka();
+            Thread.sleep(3000);
         }
     }