diff --git a/powerjob-server/src/main/java/com/github/kfcfans/powerjob/server/web/controller/InstanceController.java b/powerjob-server/src/main/java/com/github/kfcfans/powerjob/server/web/controller/InstanceController.java
index 300b55db..26121d31 100644
--- a/powerjob-server/src/main/java/com/github/kfcfans/powerjob/server/web/controller/InstanceController.java
+++ b/powerjob-server/src/main/java/com/github/kfcfans/powerjob/server/web/controller/InstanceController.java
@@ -17,6 +17,7 @@ import com.github.kfcfans.powerjob.server.service.instance.InstanceService;
 import com.github.kfcfans.powerjob.server.web.request.QueryInstanceRequest;
 import com.github.kfcfans.powerjob.server.web.response.InstanceDetailVO;
 import com.github.kfcfans.powerjob.server.web.response.InstanceInfoVO;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.data.domain.Example;
@@ -40,6 +41,7 @@ import java.util.stream.Collectors;
  * @author tjq
  * @since 2020/4/9
  */
+@Slf4j
 @RestController
 @RequestMapping("/instance")
 public class InstanceController {
@@ -89,6 +91,7 @@ public class InstanceController {
                 response.sendRedirect(url);
                 return ResultDTO.success(StringPage.simple("redirecting..."));
             }catch (Exception e) {
+                log.warn("[Instance-{}] redirect request to url[{}] failed, please ensure all server has the same http port!", instanceId, url, e);
                 return ResultDTO.failed(e);
             }
         }