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Scaling Twitter - Railsconf 2007
 

Scaling Twitter - Railsconf 2007

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A conversational presentation on Twitter's scaling success with Rails.

A conversational presentation on Twitter's scaling success with Rails.

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    Scaling Twitter - Railsconf 2007 Scaling Twitter - Railsconf 2007 Presentation Transcript

    • Scaling Twitter Alex & Britt (from Twitter)
    • Preconceived notions.
    • The story.
    • So, what happened?
    • What we did.
    • More boxes. Not so many then. But now... ‣ Mongrels across 19 cores. ‣ Message processing/delivery across 16 cores. ‣ Jabber across 2 cores. ‣ MySQL on one big 8 core box. ‣ 16GB+ for memcache across a bunch of ‣ machines. ‣ 32 cores total.
    • That’s a lot.
    • Why? 200 - 300 connections per second. ‣ Spiking at 800 connections per second. ‣ We’ve done 11,000 connections per second. ‣ MySQL has spiked to 2,400 queries per second. ‣ Alexa says we have a whole mess o’ traffic, and ‣ they’re not even seeing the API traffic.
    • memcache.
    • memcache.
    • memcache.
    • Cache the hell out of everything.
    • Denormalize.
    • find(:all, :conditions => quot;substring( truncate(id,0),-2,1) = #{@fugly_dist_idx}quot;, :limit => 10)
    • Starling.
    • Community.
    • YOU CAN HAS QUESTIONS