较多的副本数量会增加系统的可靠性，但是同时会导致系统的一致性维护成本增加。
The larger number of copies will increase system reliability, but it will also cause the system to increase the cost of consistency maintenance.
使用该模型有效地提高了数据访问的效率和可靠性，并大大减少了维护副本一致性的开销。
It is shown that the model can effectively improve the efficiency reliability of data access, and that the cost consumption in replica consistency is obviously.
大型分布式系统通常需要在异地的数据库中存储同一数据的不同副本，不同副本之间需要维护数据的一致性。
Different copies of data should be stored in different databases in the large-scale distributed system, and data consistency of different copies should be maintained.
应用推荐