Simon Willison’s Weblog


6 items tagged “squid”


Traffic Server. Mark Nottingham explains the release of Traffic Server, a new Apache Incubator open source project donated by Yahoo! using code originally developed at Inktomi around a decade ago. Traffic Server is a HTTP proxy/cache, similar to Squid and Varnish (though Traffic Server acts as both a forward and reverse proxy, whereas Varnish only handles reverse).

# 1st November 2009, 12:15 pm / apache, cache, http, inktomi, mark-nottingham, open-source, proxy, squid, trafficserver, varnish, yahoo

Yahoo! proposal to open source “Traffic Server” via the ASF. Traffic Server is a “fast, scalable and extensible HTTP/1.1 compliant caching proxy server” (presumably equivalent to things like Squid and Varnish) originally acquired from Inktomi and developed internally at Yahoo! for the past three years, which has been benchmarked handling 35,000 req/s on a single box. No source code yet but it looks like the release will arrive pretty soon.

# 7th July 2009, 12:37 pm / apache, asf, caching, open-source, proxy, squid, trafficserver, varnish, yahoo


ncache. A squid-style caching system built on top of nginx. Supports the HTTP PURGE method for cache invalidation.

# 18th June 2008, 8:09 pm / cache, http, ncache, nginx, purge, squid

HTTP Cache Channels (via) Interesting extension to the HTTP caching model by Mark Nottingham: caches can be told to subscribe to an Atom feed which alerts them to cached data that has gone stale. Group invalidation is also supported.

# 4th January 2008, 12:48 pm / atom, cachechannels, caching, http, mark-nottingham, squid


Two HTTP Caching Extensions. stale-while-revalidate serves cached content even while a refresh has been triggered and is currently being pulled in to the cache; stale-if-error serves cached content if a service has gone down.

# 12th December 2007, 11:23 am / caching, http, mark-nottingham, squid

Just what web server should be sitting in front of my Rails application? Includes some interesting notes about Varnish, PHK’s high performance, highly configurable front-end caching server (essentially a much more modern version of Squid).

# 17th July 2007, 1:29 pm / jason-hoffman, joyent, nginx, phk, rails, squid, varnish