Talking head
Ruby Conference 2012

This presentation, by Matt Duncan, is licensed under a Creative Commons Attribution ShareAlike 3.0
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Every deploy introduces the risk of downtime because of changes which are not backwards compatible. At Yammer, we deploy our Rails codebase to hundreds of servers many times a week. In this talk, I'll discuss many of the strategies we use to mitigate downtime during deploys. This includes how we handle database changes as well as background workers and external services.

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