This pattern can improve performance and also helps to maintain consistency between data held in the cache and the data in the underlying data store.
这种模式可以提高性能，也有助于保持在缓存中的数据之间的一致性和底层数据存储的数据。
As soon as you add a second cache server to the system, you encounter this problem: how do you maintain the consistency among the multiple servers that should contain identical data?
只要在系统中添加第二个高速缓存服务器，就会遇到以下问题：如果多个服务器应该包含相同的数据，如何维护多个服务器之间的一致性呢？
The caches communicate among themselves, using HTTP and special cache-coordination protocols, to divide the contents appropriately and maintain consistency among the servers.
高速缓存使用HTTP和专用的高速缓存协调协议相互通信，以适当分配内容并维护服务器之间的一致性。
The caches communicate among themselves, using HTTP and special cache-coordination protocols, to divide the contents appropriately and maintain consistency among the servers.
高速缓存使用HTTP和专用的高速缓存协调协议相互通信，以适当分配内容并维护服务器之间的一致性。
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