diff --git a/dolphinscheduler-remote/src/main/java/org/apache/dolphinscheduler/rpc/future/RpcFuture.java b/dolphinscheduler-remote/src/main/java/org/apache/dolphinscheduler/rpc/future/RpcFuture.java
index b10824b24d..b782d86b0f 100644
--- a/dolphinscheduler-remote/src/main/java/org/apache/dolphinscheduler/rpc/future/RpcFuture.java
+++ b/dolphinscheduler-remote/src/main/java/org/apache/dolphinscheduler/rpc/future/RpcFuture.java
@@ -21,10 +21,8 @@ import org.apache.dolphinscheduler.rpc.common.RpcRequest;
 import org.apache.dolphinscheduler.rpc.common.RpcResponse;
 
 import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
 
 /**
  * RpcFuture
@@ -61,6 +59,7 @@ public class RpcFuture implements Future<Object> {
 
     @Override
     public RpcResponse get() throws InterruptedException {
+        // the timeout period should be defined by the business party
         boolean success = latch.await(5, TimeUnit.SECONDS);
         if (!success) {
             throw new RuntimeException("Timeout exception. Request id: " + this.requestId
diff --git a/dolphinscheduler-remote/src/test/java/org/apache/dolphinscheduler/rpc/UserService.java b/dolphinscheduler-remote/src/test/java/org/apache/dolphinscheduler/rpc/UserService.java
index 967a42378e..ba990d0772 100644
--- a/dolphinscheduler-remote/src/test/java/org/apache/dolphinscheduler/rpc/UserService.java
+++ b/dolphinscheduler-remote/src/test/java/org/apache/dolphinscheduler/rpc/UserService.java
@@ -33,7 +33,7 @@ public class UserService implements IUserService {
     @Override
     public Integer hi(int num) {
 
-        System.out.println("hihihihi+"+num);
+        System.out.println("hihihihi+" + num);
         return ++num;
     }
 }