框架缓存代码（部分）

This project has some snippets of code that goes into the Framework Cache. This code makes use of xmemcached client and assumes the presence of memcached servers. The code is being shared to debug a problem. The xmemcached client is unable to get an object using its key, while that object is actually cached and is available. This problem happens when there are two memcached servers. Apparently, the object is cached in one server by a put. But the get is trying to retrieve the object (using the common key) from the other memcached server.