The advantage of this solution is that it provides everything from asynchronous replication that is not best effort to guaranteed synchronous transactional replication.

此解决方案的优势在于，它提供从非尽力服务的异步服务到有保证的同步事务复制的所有选择。

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Replication is used to synchronize the changes due to transactional queries with the slaves in the cluster.

数据库复制被用来把事务性查询导致的变更同步到集群中的从数据库。

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In addition, high availability is becoming ever more crucial in scalable transactional database systems, and is typically accomplished via replication and automatic fail-over in the case of a crash.

此外，高可用性正变得越来越可扩展事务数据库系统的关键，通常是通过复制和实现自动故障转移在一个崩溃的情况下。

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