Presentations

  • Exosense – Demonstrating a Connected Device Application
    2013-06-13 Erlang Central

    Presentations Videos

    Feuerlabs' Exosense, a modern framework for managing connected devices, is now operational and has been demonstrated in a number of prototypes. In this talk, we will describe our approach to Connected Device life-cycle management, and walk through an Erlang-based embedded application for in-vehicle performance monitoring. We will make the case that a reasonably competent programmer can produce a working end-to-end demonstration within a few days, and be well prepared for rapid deployment, suppor ...


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  • Relx, A Dead Simple, Robust Way to build Releases
    2013-06-13 Erlang Central

    Presentations Videos



    Building Releases is harder then it needs to be. There is already so much useful metadata in any Erlang release that it should be a simple one line command to create almost any Release. With Relcool it is. Providing both a simple command line and intuitive integration with Rebar, Relcool makes the standard Releases simple and hard Releases easy. Talk objectives: The ultimate goal is to get more people using standard OTP Releases for their systems. By introducing Relcool and showing how easy ...


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  • Tailflow – An Openflow Controller Framework
    2013-06-13 Erlang Central

    Presentations Videos



    Tail-f's Network Control System (NCS) supports programming of network services on both traditional networks and Openflow networks. Tailflow is the part of NCS that supports Openflow. Inspired by the 20 year old ideas around micro-protocols, Tailflow introduces a concept called the 'flowlet'. Each flowlet encapsulates  some minimum amount of logic in order to make it composable and easy to understand. By stacking flowlets on top of each other, the full functionality of an Openflow device is co ...


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  • Tutorial: Testing Web Services with QuickCheck
    2013-06-13 Erlang Central

    Presentations

    Testing web services on the user interface level is a featured that many developers are looking for. It's simply too boring to click your way through an web service in order to get it tested. Test automation by pre-recorded sequences of clicks is neither the ideal way to go.Instead one would like to describe a model of the system and automatically generate test cases for the web service from this model. That's what QuickCheck can do for you. Quviq developed an open sourced Erlang implement ...


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  • Let’s Write A Test!
    2013-06-13 Erlang Central

    Presentations Videos

    Come with me as we walk through implementing a new feature of Riak with riak_test. We'll go through adding a feature to Riak with Test Driven Development, going into as much detail as time will allow. We won't be delving into the internals of riak_test, but rather how we use it to test Riak. Talk objectives: Attendees of this talk should leave with an understanding of how to add a feature to Riak using Test Driven Development and riak_test and how those techniques and tools might be applic ...


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  • Scalable ETS: Does Such a Thing Exist?
    2013-06-13 Erlang Central

    Presentations Videos



    Erlang Term Storage (ETS) is Erlang's own in-memory database system, which is used by many to store shared data in parallel applications. Using ETS concurrently is a challenge, and even the Erlang/OTP R14B release notes claim that certain uses of it ""will never scale"". How to do it in a way that might work, and how much truth there is in this claim will be topics in this talk. Understanding the effects of ETS concurrency options, and how they reflect in the underlying implementation is requi ...


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  • Taming the Rabbit: Writing RabbitMQ Plugins
    2013-05-30 Erlang Central

    Presentations

    RabbitMQ is a Messaging and Queueing server that works with the AMQP protocol. But what happens if we want to use the server beyond AMQP? What if we want to replace its own storage engine or provide new authentication methods? All of that can be done why writing new plugins for RabbitMQ in Erlang. In this talk we are going to present various plugins for RabbitMQ and we will show how to extend the broker by adding new routing algorithms with custom exchange types. The code examples will be in ...


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  • Keynote: Erlang and the Chasm
    2013-05-30 Erlang Central

    Presentations

    Many wonderful technologies show great potential but never really become mainstream. As an example of how this plays out for a specific technology this talk will look at the status of Erlang using the technology lifecycle lenses of Geofrey More and in particular discuss if Erlang is before, in or after the Chasm. The take aways are not specific to Erlang in any way, so this talk could probably be done talking about technology X, but it makes more sense to talk about technology management and ...


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  • Taking the printf out of printf Debugging
    2013-05-30 Erlang Central

    Presentations

    Debugging a realtime system is hard, especially if the bugs only appear on a live system. Debuggers cannot be used, and printf debugging is often deemed too risky. The Erlang runtime offers a way to do on-the-fly instrumentation on the function level through the erlang:trace/3 function. This talk will discuss the trace BIF and how to use it. It will also describe redbug, a user-friendly and safe interface to the trace BIF. War stories will in all likelihood be offered. Talk objectives:  ...


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  • Zotonic, the Erlang Web Framework and CMS
    2013-05-30 Erlang Central

    Presentations

    Zotonic is the open source, high speed, real-time web framework  and content management system, built with Erlang. It is flexible, extensible and designed from the ground up to support dynamic, interactive websites and mobile solutions. Talk objectives:  Give an introduction to Zotonic and show why Erlang and its design principles are a good fit for highly interactive, real-time web applications Target audience: Developers, Technical co-founders at startups ...


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  • Mongoose – Citizen of the World (Wide Web)
    2013-05-30 Erlang Central

    Presentations

    MongooseIM is an Erlang-based implementation of the XMPP server. It provides a base platform for building messaging systems and has been successfully deployed and used for serving millions of online users. Talk will explain MongooseIM and how it fits into the modern Web. After this, I will describe the ways in which MongooseIM can be integrated with web pages using Websockets, like the example many people have already seen: the group chat on the ErlangCentral.org live streaming pages. Talk ob ...


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