diff --git a/docs/en/administration/data_migration_tool.md b/docs/en/administration/data_migration_tool.md
index e628277070ce7..0b2a2d346ff61 100644
--- a/docs/en/administration/data_migration_tool.md
+++ b/docs/en/administration/data_migration_tool.md
@@ -335,3 +335,18 @@ FROM INFORMATION_SCHEMA.TABLES
 WHERE TABLE_TYPE = 'BASE TABLE' 
 ORDER BY TABLE_NAME;
 ```
+
+
+## Q&A
+
+### Q1: Why did only the table schemas get synchronized?
+
+If you have enabled the firewall, you must open these ports:
+
+| **Component** | **Port**     | **Default** |
+| ----------- | -------------- | ----------- |
+| FE          | query_port     | 9030 |
+| FE          | http_port      | 8030 |
+| FE          | rpc_port       | 9020 |
+| BE          | be_http_port   | 8040 |
+| BE          | be_port        | 9060 |
diff --git a/docs/zh/administration/data_migration_tool.md b/docs/zh/administration/data_migration_tool.md
index 9d85833d6ee3d..2559c70bcfa84 100644
--- a/docs/zh/administration/data_migration_tool.md
+++ b/docs/zh/administration/data_migration_tool.md
@@ -335,3 +335,17 @@ FROM INFORMATION_SCHEMA.TABLES
 WHERE TABLE_TYPE = 'BASE TABLE' 
 ORDER BY TABLE_NAME;
 ```
+
+## Q&A
+
+### Q1：为什么只能同步表结构？
+
+如果您开启了防火墙，则需要开通以下端口：
+
+| **组件**     | **端口**       | **默认端口**  |
+| ----------- | -------------- | ----------- |
+| FE          | query_port     | 9030 |
+| FE          | http_port      | 8030 |
+| FE          | rpc_port       | 9020 |
+| BE          | be_http_port   | 8040 |
+| BE          | be_port        | 9060 |