Some applications need to know database updates for certain time ranges, which may be used for replication of data, auditing scenarios, and so forth.
某些应用程序需要了解特定时间范围内的数据库更新，以便进行数据复制、场景审计等等。
The High Replication Datastore increases the number of data centers that maintain replicas of your data by using the Paxos algorithm to synchronize that data across datacenters in real time.
HighReplication Datastore使用Paxos算法来实时同步跨越多个数据中心的数据，进而增加了用于维护数据复制的数据中心数量。
Includes a high-availability data replication (HDR) feature for disaster recovery and continuous log restore, point-time instance-wide restore, and table-level backup and recovery.
内含高可用性资料抄写 (HDR)功能，以便提供灾难回复与连续记录还原、时间点实例层面还原、表格层次备份及回复。
Better replication: real time, replica sets, more options for data durability.
更好的复制功能：实时、复制集、更多数据耐久性选项。
Scalability and replication are provided which are necessary functions for large web sites' real-time data stores. Specific web use case examples.
提供可扩展性和可复制性，这对于大型网站的实时数据存储是十分必要的特性。
With the principle of data consistency, LVR lowers the response time of replication process by optimizing I/O flow on primary site and that on secondary sites.
在保证主从端数据一致的前提下，LVR通过优化主端对上层写请求的处理方式以及从端的I/O处理流程，减小了数据复制过程对应用响应时间的影响；
The simulation results show that this replication strategy can reduce the average data access time efficiently.
模拟实验的结果显示此副本创建策略可以有效降低数据平均访问时间。
And servers adopt transaction replication, which reflects promptly the data changed to subscribe servers and meet real-time synchronization of the data.
同时服务器之间采取事务复制技术，及时将集中更改的数据反映到各订阅服务器，满足了数据的及时同步。
And servers adopt transaction replication, which reflects promptly the data changed to subscribe servers and meet real-time synchronization of the data.
同时服务器之间采取事务复制技术，及时将集中更改的数据反映到各订阅服务器，满足了数据的及时同步。
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