1. Getting Off the Monorail or: How Twitter Learned to Stop Worrying and Love Monads


    from CU Engineering Online / Added

    345 Plays / / 0 Comments

    Jeffrey Sarnat, Software Engineer, Twitter Thursday, November 15, 2012 ABSTRACT: Twitter is one of the most heavily trafficked sites on the internet, with over 140 million active users and serving over 400 million Tweets per day. Historically, nearly all of Twitter's traffic has been served by a monolithic application written in Ruby on Rails, referred to internally as "the monorail." Although Twitter has seen remarkable growth in its six years of existence, scaling this monolithic architecture has proved to be both error-prone and expensive, not only in terms of computational efficiency, but in terms of developer efficiency as well. More recently, Twitter has begun the process of replacing the monorail with a Services Oriented Architecture (SOA), where the services are JVM processes--mostly written in Scala--that communicate with one-another asynchronously over a network connection. Naively written, asynchronous code is often both tedious to write and difficult to reason about; at Twitter, the asynchronous code implementing Scala services is both simple and beautiful, thanks in large part to an internally-developed, open-source library called Finagle. In this talk, I will attempt to explain how Finagle's strong grounding in programming language theory has facilitated this transition to an SOA, and how Scala's advanced features allow for a library as expressive as Finagle to have been written in the first place. BIO: Jeffrey Sarnat (B.S. in Computer Science., CMU 2002, Ph.D. in Computer Science, Yale 2010) is a former programming languages researcher who currently works for Twitter on a team that builds large scale distributed systems. He enjoys candlelit dinners and long walks on the beach. Follow him on Twitter as @Eigenvariable.

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    • Spark View Engine presentation at Minneapolis ALT.NET


      from Louis DeJardin / Added

      1,461 Plays / / 0 Comments

      Louis DeJardin gives a presentation of the open source Spark view engine http://sparkviewengine.com at a venue organized by the Minneapolis ALT.NET group http://mplsalt.net.

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      • Spark View Engine presentation at Minneapolis ALT.NET - HQ


        from Louis DeJardin / Added

        50 Plays / / 0 Comments

        Higher quality capture of: Louis DeJardin gives a presentation of the open source Spark view engine sparkviewengine.com at a venue organized by the Minneapolis ALT.NET group mplsalt.net.

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        • 2011-08 MonoRail 3.0 And F#


          from Ryan Riley / Added

          47 Plays / / 0 Comments

          Learn about the use of F# in the next version of Castle MonoRail with Hamilton Veríssimo "Hammett" de Oliveira.

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          • MVC и все все все


            from Vitaly Baum / Added

            226 Plays / / 0 Comments

            Запись со встречи Санкт-Петербургских групп Ineta ft. ALT.NET (23 ноября 2009 года) посвященная работе с MVC Framework с альтернативными View Engine.

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            • Midtown Plaza Tuba Christmas 2007


              from RocPic.Com / Added

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              Tuba Christmas at Midtown Plaza in Rochester, NY 2007. The last Christmas at America's first indoors shopping mall. Watch the monorail go around, check ou the Christmas tree, see Midtown Plaza filled with people for Christmas for one last celebration. More than 200 tuba players put on a wonderful show with more than a dozen of your favorite Christmas Carols. A beautiful tribute to Midtown, the Tuba Orchestra, and the Christmas Holiday, says I.

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              • WDW Transport - A History


                from Martins Videos / Added

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                The history of WDWs Monorails, roads, busses and watercraft. Includes World Drive circa 1990 with the original, new, Disney MGM junctions, brown signs and original MK Auto plaza. Orange and brown parking trams are in fashion, as is a bland T&TC. Journey over Seven Seas Lagoon on the Magic Kingdom I with Jack Wagner, and around it - to and from the MK - in a MkIV monorail cab with Jack too. Ride in the cab to EPCOT Center, and take a brown tram back to the MK lot and to Futureworld. See the original Monorail plans from 1970, and 1975`s expansions, and also see the history of the Friendships, WDWs watercraft on Seven Seas and Bay Lake, Lake Buena Vista and Crescent Lakes waterways, and the bus fleet.

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                • Future World 1990 Walkaround


                  from Martins Videos / Added

                  3,677 Plays / / 3 Comments

                  Futureworld 90 - a walk around; I`ve wanted to do something like this for a while. I have so many little clips from June 1990 on tape I wanted to get them all together, you could call this EPCOT Center: everything BUT the attractions. Includes: Original autoplaza Mark IV in the cab on the Futureworld loop Original entrance plaza, fountains, Communicore and Earthstation exteriors Centorium a walk around Futureworld East Inside Wonders of Life Future Corps - on the World of Motion path (starting) and the 10am fountain performance 11am character breakfast greeting inside The Odyssey (Clap you hands music... and Mickey, Minnie, Goofy, Pluto, Chip & Dale in their silver space outfits) on stage and in the resteraunt Surprise in the Skies highlights from 1992 A walk around the Imagination gardens, Captain EO`s entrance and inside the large pyramid Walk into the original Land pavilion and take the escalator down (topical!) Outside the Living Seas Futureworld 90 at night and general sights, sounds, signs and views of how EPCOT Center used to be. All set to appropiate music (I had a good dig into my collection)

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                  • Dismantling the Monorail - AirBnb Engineer Jack Lawson at Heroku's Waza 2013


                    from Waza / Added

                    657 Plays / / 0 Comments

                    Airbnb's Jack Lawson took to Waza's 2013 stage to present his latest talk, "Dismantling the Monorail". For more on Waza https://waza.heroku.com/2013 or for info on Heroku visit http://heroku.com ABOUT LAWSON: Jack Lawson is a software engineer specializing in user interface development at Airbnb. He runs the SF Lua meetup group, and enjoys open-source development, building games, writing Mustache templates, and coffee connoisseurism (these interests often coincide.) Jack lives in San Francisco with his wife and two daughters. @ajacksified SLIDES AVAILABLE AT: http://www.slideshare.net/heroku/jack-lawson-airbnbdismantling-the-monorail

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                    • NVelocity Tips and Tricks


                      from Andy Pike / Added

                      262 Plays / / 0 Comments

                      Builds on episode 6 to remove duplication in the NVelocity view files. Also shows how to add a ReSharper file template and some other tips when using NVelocity with a MonoRail project.

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