diff --git a/iot-modules/iot-box-user-api/src/main/java/com/qiuguo/iot/user/api/filter/LogMdcConfiguration.java b/iot-modules/iot-box-user-api/src/main/java/com/qiuguo/iot/user/api/filter/LogMdcConfiguration.java
index edca2e6..b0aa053 100644
--- a/iot-modules/iot-box-user-api/src/main/java/com/qiuguo/iot/user/api/filter/LogMdcConfiguration.java
+++ b/iot-modules/iot-box-user-api/src/main/java/com/qiuguo/iot/user/api/filter/LogMdcConfiguration.java
@@ -83,7 +83,6 @@ public class LogMdcConfiguration {
             WebFluxSkyWalkingOperators.continueTracing(ctx, () ->{
                 coreSubscriber.onNext(t);
             });
-            coreSubscriber.onNext(t);
         }
 
 
diff --git a/iot-modules/iot-box-websocket-api/src/main/java/com/qiuguo/iot/box/websocket/api/filter/LogMdcConfiguration.java b/iot-modules/iot-box-websocket-api/src/main/java/com/qiuguo/iot/box/websocket/api/filter/LogMdcConfiguration.java
index d4c4f12..b7e2e46 100644
--- a/iot-modules/iot-box-websocket-api/src/main/java/com/qiuguo/iot/box/websocket/api/filter/LogMdcConfiguration.java
+++ b/iot-modules/iot-box-websocket-api/src/main/java/com/qiuguo/iot/box/websocket/api/filter/LogMdcConfiguration.java
@@ -75,7 +75,6 @@ public class LogMdcConfiguration {
             WebFluxSkyWalkingOperators.continueTracing(ctx, () ->{
                 coreSubscriber.onNext(t);
             });
-            coreSubscriber.onNext(t);
         }