缓存的重要性不用多说吧！不管是处理高并发，还是提升响应速度，缓存都是个“救命稻草”。可缓存也不是万能的，特别是刚启动时，你有没有被“冷启动”卡过脖子？今天咱们聊聊怎么用 Guava Cache 来搞定缓存预热这事，顺便解决一些实际中容易踩的“雷”。

Developed by Danga Interactive to improve site performance on LiveJournal.com, Memcached‘s distributed architecture today supports the exponential scalability of social web applications like Twitter, ...

Suppose a coworker asks you for a list of all the countries in the world. Because you are no geography expert, you surf over to the United Nations Website, download the list, and print it out for her.