HTTP分布式缓存机制研究

Study on HTTP Distributed Cache Mechanism

文章旨在探讨HTTP缓存器与缓存控制机制在WWW信息检索服务中的应用问题。首先,给出了分布式缓存控制的应用构架及HTTP语义一致性的检测方法。进而侧重研究了实现缓存基本原理的关键机制,如到期机制,有效性检测机制,以及相关作用机制。最后用两个完整的缓存处理例程,验证了从用户请求到服务响应过程控制的有效性。

This paper discusses the application problem of HTTP cache and cache control_mechanism in the informa-tion retrieval through WWW.First,the application architecture of HTTP cache and the detecting method of HTTP se-mantic consistency are given.So the key mechanism of implementing basic principle,such as the expiration mechanism,validation mechanism and other correlative mechanisms are expounded in detail.At last using two integrated cache pro-cessing examples,It validates the cache control mechanisms in the process from user request to server response.