因为每次修改的元数据都被完全复制到每个服务器节点中，所以读取元数据通常只要在一个节点本地进行，而不需要网络通讯。

Since changes to the metadata cache are replicated to every server, a read is always local and doesn't require network communication.

youdao

例如，假设两个私有网络通讯中的一个失效，VCS拥有剩下的网络通讯和磁盘心跳区域，允许心跳正常地继续下去。

For example, if one of two private network connections fails, VCS has the remaining network connection and the disk heartbeat region that allow heartbeats to continue normally.

youdao

存储过程可通过将多个操作组合到一个过程调用中来减少网络通讯。

Stored procedures can reduce network traffic by combining multiple operations into one procedure call.

youdao