diff --git a/test/e2e/e2e-agent-reboot/src/main/java/org/apache/skywalking/e2e/sample/client/TestController.java b/test/e2e/e2e-agent-reboot/src/main/java/org/apache/skywalking/e2e/sample/client/TestController.java
index cfbe5a2525..566bcdea4a 100644
--- a/test/e2e/e2e-agent-reboot/src/main/java/org/apache/skywalking/e2e/sample/client/TestController.java
+++ b/test/e2e/e2e-agent-reboot/src/main/java/org/apache/skywalking/e2e/sample/client/TestController.java
@@ -42,7 +42,8 @@ public class TestController {
     }
 
     @PostMapping("/users")
-    public User createAuthor(@RequestBody final User user) {
+    public User createAuthor(@RequestBody final User user) throws InterruptedException {
+        Thread.sleep(1000L);
         return userRepo.save(user);
     }
 }
diff --git a/test/e2e/e2e-single-service/src/main/java/org/apache/skywalking/e2e/sample/client/TestController.java b/test/e2e/e2e-single-service/src/main/java/org/apache/skywalking/e2e/sample/client/TestController.java
index cfbe5a2525..566bcdea4a 100644
--- a/test/e2e/e2e-single-service/src/main/java/org/apache/skywalking/e2e/sample/client/TestController.java
+++ b/test/e2e/e2e-single-service/src/main/java/org/apache/skywalking/e2e/sample/client/TestController.java
@@ -42,7 +42,8 @@ public class TestController {
     }
 
     @PostMapping("/users")
-    public User createAuthor(@RequestBody final User user) {
+    public User createAuthor(@RequestBody final User user) throws InterruptedException {
+        Thread.sleep(1000L);
         return userRepo.save(user);
     }
 }