Core Cache Layer.

核心缓存层。

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Listing 3 adds a cache layer to the SimpleXML example from Listing 2.

清单3在清单2所示s impleXML例子的基础上增加了缓存层。

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If access to the source database is unreliable, striving for resiliency in the cache layer might improve overall stability for read-intensive applications.

如果对源数据库的访问不可靠，在缓存层争取弹性可能会提高读密集型应用程序的总体稳定性。

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The top layer is a 48 GB cache for organizing the writing of data for better utilization of the flash memory in the other layers.

FORBES: Explosive Growth in Flash Memory Enterprise Applications