每个RSS服务器维护数据库的一个完整的副本。

Each RSS server maintains a complete copy of the database.

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CLP包括前端进程(表示用户界面)和后端进程，可以用它们来维护数据库连接。

The CLP includes both a front-end process (representing the user interface) and a back-end process to maintain a database connection.

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如果集群的服务器超过两个，您应该仅维护数据库的一个副本(只要能够满足可用性需求)。

If you cluster more than two servers, you should maintain only one replica copy of a database (as long as this can meet your availability needs).

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