The set-after-write technique may be useful for state replication, but it is not enough to provide thread safety.
set-after-write 技巧可能对状态复制非常有用，但还不能提供线程安全。
With this disk replication system, snapshots of the state of the primary data center are captured and asynchronously transferred to the disaster data center.
通过磁盘复制系统，将捕获主要数据中心的状态数据的快照并以异步方式传输到灾难数据中心。
The benefits of scaling stateful application are less impressive due to increased complexity and the performance impact associated with replication of state or data.
扩展有状态应用程序的好处并不明显，原因在于，增加了复杂性以及与状态或数据复制相关的性能影响。
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