Twitter and Amazon

Friday, 15 February 2008

Profile pictures were offline for 2-3 minutes very early in the morning US time. The outage was related to a service interruption at Amazon Web Services which Twitter uses to host profile images.

Amazon has a goal of 99.9% uptime with this service. This translates to 45 minutes per month of expected downtime. Achieving 99.9% uptime is a significant challenge—but worth striving towards!