From 591126ee6bea0ebfd2103312432182bf4ae74fe4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?ChengTie=28=E9=90=B5=E6=89=8B=29?= <ironcity.hz@gmail.com>
Date: Fri, 13 May 2022 14:37:17 +0800
Subject: [PATCH] update (#3326)

---
 .../alibaba/otter/canal/client/adapter/rdb/RdbAdapter.java    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/RdbAdapter.java b/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/RdbAdapter.java
index be77ab49..e4c7e106 100644
--- a/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/RdbAdapter.java
+++ b/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/RdbAdapter.java
@@ -182,7 +182,9 @@ public class RdbAdapter implements OuterAdapter {
             return;
         }
         try {
-            rdbSyncService.sync(mappingConfigCache, dmls, envProperties);
+            if (!mappingConfigCache.isEmpty()) {
+                rdbSyncService.sync(mappingConfigCache, dmls, envProperties);
+            }
             rdbMirrorDbSyncService.sync(dmls);
         } catch (Exception e) {
             throw new RuntimeException(e);