Andy Delcambre wrote a post two months ago about how Engine Yard handles zero-downtime deploys with migrations. Link here: http://www.engineyard.com/blog/2011/z

Andy Delcambre wrote a post two months ago about how Engine Yard handles zero-downtime deploys with migrations. Link here: http://www.engineyard.com/blog/2011/zero-downtime-deploys-with-migrations/ http://www.engineyard.com/blog/2011/zero-downtime-deploys-wi...