[Doc] Add ports to enable for stream load related docs (backport #44215)

docs/en/loading/StreamLoad.md

@@ -20,7 +20,17 @@ For CSV data, take note of the following points:
 - You can use a UTF-8 string, such as a comma (,), tab, or pipe (|), whose length does not exceed 50 bytes as a text delimiter.
 - Null values are denoted by using `\N`. For example, a data file consists of three columns, and a record from that data file holds data in the first and third columns but no data in the second column. In this situation, you need to use `\N` in the second column to denote a null value. This means the record must be compiled as `a,\N,b` instead of `a,,b`. `a,,b` denotes that the second column of the record holds an empty string.
 
-Stream Load and Broker Load both support data transformation at data loading and supports data changes made by UPSERT and DELETE operations during data loading. For more information, see [Transform data at loading](../loading/Etl_in_loading.md) and [Change data through loading](../loading/Load_to_Primary_Key_tables.md).
+Stream Load and Broker Load both support data transformation at data loading and support data changes made by UPSERT and DELETE operations during data loading. For more information, see [Transform data at loading](../loading/Etl_in_loading.md) and [Change data through loading](../loading/Load_to_Primary_Key_tables.md).
+
+## Before you begin
+
+### Check privileges
+
+You can load data into StarRocks tables only as a user who has the INSERT privilege on those StarRocks tables. If you do not have the INSERT privilege, follow the instructions provided in [GRANT](../sql-reference/sql-statements/account-management/GRANT.md) to grant the INSERT privilege to the user that you use to connect to your StarRocks cluster.
+
+#### Check network configuration
+
+Make sure that the machine on which the data you want to load resides can access the FE and BE nodes of the StarRocks cluster via the [`http_port`](../administration/Configuration.md) (default: `8030`) and [`be_http_port`](../administration/Configuration.md) (default: `8040`) , respectively.
 
 ## Loading from a local file system via Stream Load
 

docs/en/loading/Stream_Load_transaction_interface.md

@@ -82,6 +82,16 @@ The Stream Load transaction interface has the following limits:
 - If you the label of a previous transaction to call the `/api/transaction/begin` operation to start a new transaction, the previous transaction will fail and be rolled back.
 - The default column separator and row delimiter that StarRocks supports for CSV-formatted data are `\t` and `\n`. If your data file does not use the default column separator or row delimiter, you must use `"column_separator: <column_separator>"` or `"row_delimiter: <row_delimiter>"` to specify the column separator or row delimiter that is actually used in your data file when calling the `/api/transaction/load` operation.
 
+## Before you begin
+
+### Check privileges
+
+You can load data into StarRocks tables only as a user who has the INSERT privilege on those StarRocks tables. If you do not have the INSERT privilege, follow the instructions provided in [GRANT](../sql-reference/sql-statements/account-management/GRANT.md) to grant the INSERT privilege to the user that you use to connect to your StarRocks cluster.
+
+#### Check network configuration
+
+Make sure that the machine on which the data you want to load resides can access the FE and BE nodes of the StarRocks cluster via the [`http_port`](../administration/Configuration.md) (default: `8030`) and [`be_http_port`](../administration/Configuration.md) (default: `8040`) , respectively.
+
 ## Basic operations
 
 ### Prepare sample data

docs/zh/loading/StreamLoad.md

@@ -22,6 +22,16 @@ StarRocks 提供两种导入方式帮助您从本地文件系统导入数据：
 
 Stream Load 和 Broker Load 均支持在导入过程中做数据转换、以及通过 UPSERT 和 DELETE 操作实现数据变更。请参见[导入过程中实现数据转换](../loading/Etl_in_loading.md)和[通过导入实现数据变更](../loading/Load_to_Primary_Key_tables.md)。
 
+## 准备工作
+
+### 查看权限
+
+导入操作需要目标表的 INSERT 权限。如果您的用户账号没有 INSERT 权限，请参考 [GRANT](../sql-reference/sql-statements/account-management/GRANT.md) 给用户赋权。
+
+### 查看网络配置
+
+确保待导入数据所在的机器能够访问 StarRocks 集群中 FE 节点的 [`http_port`](../administration/Configuration.md) 端口（默认 `8030`）、以及 BE 节点的 [`be_http_port`](../administration/Configuration.md) 端口（默认 `8040`）。
+
 ## 使用 Stream Load 从本地导入
 
 Stream Load 是一种基于 HTTP PUT 的同步导入方式。提交导入作业以后，StarRocks 会同步地执行导入作业，并返回导入作业的结果信息。您可以通过返回的结果信息来判断导入作业是否成功。

docs/zh/loading/Stream_Load_transaction_interface.md

@@ -82,6 +82,16 @@ Stream Load 事务接口具有如下优势：
 - 重复调用标签相同的 `/api/transaction/begin` 接口，会导致前面使用相同标签已开启的事务失败并回滚。
 - StarRocks支持导入的 CSV 格式数据默认的列分隔符是 `\t`，默认的行分隔符是 `\n`。如果源数据文件中的列分隔符和行分隔符不是 `\t` 和 `\n`，则在调用 `/api/transaction/load` 接口时必须通过 `"column_separator: <column_separator>"` 和 `"row_delimiter: <row_delimiter>"` 指定行分隔符和列分隔符。
 
+## 准备工作
+
+### 查看权限
+
+导入操作需要目标表的 INSERT 权限。如果您的用户账号没有 INSERT 权限，请参考 [GRANT](../sql-reference/sql-statements/account-management/GRANT.md) 给用户赋权。
+
+### 查看网络配置
+
+确保待导入数据所在的机器能够访问 StarRocks 集群中 FE 节点的 [`http_port`](../administration/Configuration.md) 端口（默认 `8030`）、以及 BE 节点的 [`be_http_port`](../administration/Configuration.md) 端口（默认 `8040`）。
+
 ## 基本操作
 
 ### 准备数据样例