How Digg.com uses the LAMP stack to scale upward

[savant]

http://www.computerworld.com/action/...rce=rss_news50

That's a fairly standard setup. But to get away from "sending raw queries against the database," White said Digg.com uses a software called Memcached. First developed for use by the Livejournal site, Memcached is tailored for dynamic sites like Digg.com, which serve Web pages with content that is constantly changing and is personalized according to user preferences, White said.

Memcached stores chunks of data that can be pulled and used to dynamically create a Web page. Conventional caching systems, which store whole Web pages, would be too slow and inefficient for a site like Digg.

Digg’s current architecture includes about 20 database servers, 30 Web servers, and a few search servers running Lucene; the balance operate as backup servers.

[beatniak]

Very interesting! Thanks for the link!

Here's the Digg-link by the way: http://digg.com/tech_news/How_Digg_c...o_scale_upward

[PierreB]

On the same subject, don't forget this one too: http://www.oreillynet.com/onlamp/blo..._and_perf.html