Sessions at RailsConf 2012 about Heroku on Tuesday 24th April

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  • Schemaless SQL — The Best of Both Worlds

    by Will Leinweber

    Schemaless database are a joy to use because they make it easy to iterate on your app, especially early on. And to be honest, the relational model isn't always the best fit for real-world evolving and messy data.

    On the other hand, relational databases are proven, robust, and powerful. Also, over time as your data model stabilizes, the lack of well-defined schemas becomes painful.

    How are we supposed to pick one or the other? Simple: pick both. Fortunately recent advances in Postgres allow for a hybrid approach that we've been using at Heroku. The hstore datatype gives you key/value in a single column, and PLV8 enables JavaScript and JSON in Postgres. These and others in turn make Postgres the best document database in the world.

    We will explore the power of hstore and PLV8, explain how to use them in your project today, and examine their role in the future of data.

    At 1:30pm to 2:15pm, Tuesday 24th April

    In Salon K, Hilton Austin Downtown

  • Zero downtime deploys for Rails apps

    by Pedro Belo

    What does it take to deploy an application without any downtime?

    More than most Ruby developers would expect, turns out; what is aggravated by the lack of documentation and other resources on this topic.

    In this talk we'll dive into both development practices (hot compatibility, database migrations, caching) and deployment setup (Heroku, Unicorn, HAProxy), covering everything you need to know in order to ship code without affecting a single customer.

    At 4:00pm to 4:45pm, Tuesday 24th April

    In Salon J, Hilton Austin Downtown

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