"The LSAM project is developing the middleware infrastructure to support scalable distributed information services. Current implementations of such services rely on individual components, such as Web servers, WAIS servers, and host clients. Some resource sharing is provided via distributed indexing systems. e.g. Harvest, or manually configured proxy caches. The goal of LSAM is to develop middleware to support large-scale deployment of distributed information services with effective economies of scale."
"The LSAM project is currently integrating the components of its earlier research into a self-organizing multicast cache system, called the LSAM proxy. The LSAM proxy uses multicast push based on interest groups, to reduce server and network load and increase client performance."
"We define middleware as:
Distributed services that:
- require distibuted on-going process
- combine OS and network capabilities
- but can't be effectively implemented exclusively in either the OS or the network"
"The LSAM proxy relies on a few assumptions:
- idle bandwidth is a wasted opportunity
- distibuted client hot-spot traffic is important
- on the timescale of days-weeks (conjecture)
- content-based (semantic affinity)
- significant traffic issue
- clients and servers should be as autonomous as possible
originally Posted to cep.weblogger.com by David Soul on 1/15/05; 9:49:18 PM in the CEP section.
