diff --git a/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/loader/AdapterProcessor.java b/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/loader/AdapterProcessor.java
index 1157a95b..30a267da 100644
--- a/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/loader/AdapterProcessor.java
+++ b/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/loader/AdapterProcessor.java
@@ -1,6 +1,5 @@
 package com.alibaba.otter.canal.adapter.launcher.loader;
 
-import com.alibaba.otter.canal.connector.core.spi.ProxyCanalMsgConsumer;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Properties;
@@ -8,7 +7,6 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
-import java.util.stream.Collectors;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -24,6 +22,7 @@ import com.alibaba.otter.canal.connector.core.config.CanalConstants;
 import com.alibaba.otter.canal.connector.core.consumer.CommonMessage;
 import com.alibaba.otter.canal.connector.core.spi.CanalMsgConsumer;
 import com.alibaba.otter.canal.connector.core.spi.ExtensionLoader;
+import com.alibaba.otter.canal.connector.core.spi.ProxyCanalMsgConsumer;
 
 /**
  * 适配处理器
diff --git a/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/loader/CanalAdapterLoader.java b/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/loader/CanalAdapterLoader.java
index 12e319c1..9f0819d4 100644
--- a/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/loader/CanalAdapterLoader.java
+++ b/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/loader/CanalAdapterLoader.java
@@ -1,6 +1,5 @@
 package com.alibaba.otter.canal.adapter.launcher.loader;
 
-import com.alibaba.otter.canal.client.adapter.ProxyOuterAdapter;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -17,14 +16,15 @@ import org.springframework.core.env.EnumerablePropertySource;
 import org.springframework.core.env.Environment;
 import org.springframework.core.env.PropertySource;
 import org.springframework.core.env.StandardEnvironment;
+import org.springframework.util.CollectionUtils;
 
 import com.alibaba.otter.canal.adapter.launcher.config.SpringContext;
 import com.alibaba.otter.canal.client.adapter.OuterAdapter;
+import com.alibaba.otter.canal.client.adapter.ProxyOuterAdapter;
 import com.alibaba.otter.canal.client.adapter.support.CanalClientConfig;
 import com.alibaba.otter.canal.client.adapter.support.ExtensionLoader;
 import com.alibaba.otter.canal.client.adapter.support.OuterAdapterConfig;
 import com.alibaba.otter.canal.client.adapter.support.Util;
-import org.springframework.util.CollectionUtils;
 
 /**
  * 外部适配器的加载器
@@ -74,7 +74,7 @@ public class CanalAdapterLoader {
                 // canalOuterAdapters 存在初始化失败的情况，导致canalOuterAdapters的数量，可能小于group.getOuterAdapters
                 // 由于group下的 所有OuterAdapter实例都会重复消费同一批消息，因此不允许部分adapter初始化成功，必须全部初始化成功才允许消费
                 if(CollectionUtils.isEmpty(canalOuterAdapters) || canalOuterAdapters.size() != group.getOuterAdapters().size() ){
-                        String msg = String.format("instance=%s,groupId=%s 下的canalOuterAdapters未加载成功，请检查rdb.yml文件格式是否正确",
+                    String msg = String.format("instance=%s,groupId=%s Load OuterAdapters is Empty，pls check rdb.yml",
                                 canalAdapter.getInstance(),group.getGroupId());
                         throw new RuntimeException(msg);
                  }
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 53c68dc5..6779063e 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
@@ -1,13 +1,8 @@
 package com.alibaba.otter.canal.client.adapter.rdb;
 
-import com.alibaba.otter.canal.client.adapter.support.FileName2KeyMapping;
 import java.sql.Connection;
 import java.sql.SQLException;
-import java.util.Collections;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Properties;
+import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 
 import org.apache.commons.lang.BooleanUtils;
@@ -27,11 +22,7 @@ import com.alibaba.otter.canal.client.adapter.rdb.service.RdbEtlService;
 import com.alibaba.otter.canal.client.adapter.rdb.service.RdbMirrorDbSyncService;
 import com.alibaba.otter.canal.client.adapter.rdb.service.RdbSyncService;
 import com.alibaba.otter.canal.client.adapter.rdb.support.SyncUtil;
-import com.alibaba.otter.canal.client.adapter.support.Dml;
-import com.alibaba.otter.canal.client.adapter.support.EtlResult;
-import com.alibaba.otter.canal.client.adapter.support.OuterAdapterConfig;
-import com.alibaba.otter.canal.client.adapter.support.SPI;
-import com.alibaba.otter.canal.client.adapter.support.Util;
+import com.alibaba.otter.canal.client.adapter.support.*;
 
 /**
  * RDB适配器实现类