基于内容的可缩放性服务的负载分配研究

通过工作站或者PC集群利用客户机内容请求来进行负载分配，这种模式具有很多吸引人的特性，但当前Internet标准去实现以基于内容的负载分配有相当的困难。论述了为达到基于内容的负载分配的可缩放性服务(如WWW服务)的几种方法，并举例说明了这些方法的优缺点，介绍了其中能够实现基于内容的负载分配的一种方法：握手连接。详细介绍了一种由TCP握手连接扩展的向后兼容的协议。

Research of load distribution based on content for scalable services

Using information content of individual client request to distribute load across a cluster of workstations or PCs has many attractive properties, and describing how current Internet standards made content-based load distribution difficult. Several approaches to achieve content-based load distribution for large scalable services such as WWW servers was discussed. The advantages and disadvantages of these approaches were illustrated and one method, connection hand-off was introduced, which enabled content-based load distribution. A small backwards-compatible extension to the TCP protocol was described to allow connection hand-off and outline the OS implementation required.