Design Patterns
w 24-1缓存旁置-2断路器模式
https://msdn.microsoft.com/en-us/library/dn568099.aspx

Figure 1 - Using the Cache-Aside pattern to store data in the cache

Figure 1 - Circuit Breaker states
w 24-1缓存旁置-2断路器模式
https://msdn.microsoft.com/en-us/library/dn568099.aspx

