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Tumblr Architecture

Tumblr Architecture
With over 15 billion page views a month Tumblr has become an insanely popular blogging platform. Users may like Tumblr for its simplicity, its beauty, its strong focus on user experience, or its friendly and engaged community, but like it they do. Growing at over 30% a month has not been without challenges. Some reliability problems among them. It helps to realize that Tumblr operates at surprisingly huge scales: 500 million page views a day, a peak rate of ~40k requests per second, ~3TB of new data to store a day, all running on 1000+ servers. One of the common patterns across successful startups is the perilous chasm crossing from startup to wildly successful startup. Tumblr started as a fairly typical large LAMP application. The theme at Tumblr is transition at massive scale. Site: Stats Software Hardware Architecture Tumblr has a different usage pattern than other social networks. Old Tumblr New Tumblr Internal Firehose Cell Design for Dashboard Inbox Team Structure

MANIFESTO ARCHITECTURE How To Scale A $1 Billion Startup: A Guide From Instagram Co-Founder Mike Krieger Instagram’s co-founders Kevin Systrom and Mike Krieger have been noticeably silent since their photo-sharing app Instagram was bought by Facebook earlier this week for $1 billion. In the meantime there has been a lot written about that deal, from praise to backlash, parsing what it means and why. But if you’d like to hear a little (actually, a lot) about how Instagram got to where it did, read on. Last night, Krieger gave a presentation at an Airbnb event for employees and members of the network, part of a regular series called the Tech Talk. The subject was “Scaling Instagram.” Considering his company was just bought for $1 billion, it’s a pretty remarkable effort, 185 slides in all. The talk, as the name of the event would suggest, is mainly about engineering and back-end work. And simplicity, one of the things that makes Instagram so attractive, appears to be a philosophy and approach that Krieger & Co. follow right through to the most back-end parts of the site.

RemoteAccess - Jackrabbit Wiki Remote Access Overview Jackrabbit supports remote access using DavEx (WebDAV with JCR extensions, since Jackrabbit 2.0) and an RMI layer called JCR-RMI. The easiest way to access a remote repository is to use the org.apache.jackrabbit.commons.JcrUtils.getRepository(String uri) method from the jackrabbit-jcr-commons component. This method takes a repository URI, connects to it and returns a local javax.jcr.Repository instance that you can use to access the repository through the standard JCR API. DavEx Jackrabbit 2.0 supports the DavEx protocol through the Jackrabbit WebDAV server included in the Jackrabbit web application and the Standalone Server. On the client side, you need the following Maven dependencies: <! Assuming you have the Jackrabbit standalone server running with default settings, you can then connect to it with the following code: The JCR API can be accessed over RMI. To connect to such a server, use:

Inspirational Gallery #29 - Architecture In Artists Inspire Artist’s Inspirational Galleries, we present to you amazing & high quality artwork from incredible artists throughout the world. Today we have an amazing selection of architecture. So as always, enjoy & live inspired! Instagram Engineering • What Powers Instagram: Hundreds of Instances, Dozens of Technologies ‘The riskiest thing you can do now is be safe’ – The Top 10 TED talks for startups If you’re on a post-startup-event downer after the excitement of last weeks Campus Party and TOA it’s time to perk up again: iconic TEDx conference is in Berlin tomorrow with the spacey theme of Future 3.0. The auspicious conference will be held at the ICC conference centre in Messe Nord and is showcasing speakers like head of communications agency Red Onion, Stephan Balzer, Tape TV founder Conrad Fritzsch and media technologist Deanna Zandt, along with more that you can check out here. In honour of the innovative and technological theme of the TED conferences, we’re showcasing the most inspiring and useful TED and TEDx talks on entrepreneurship and tech. Do what makes you happy – Chip Conley Founder of Joie de Vivre Hospitality, hotelier and author Chip Conley is in search of the intangible measurements that make a difference – he thinks what makes people happy should be a top priority, not just produce or numbers. Pitching to VCs – David S. Sweat the small stuff – Rory Sutherland

Kinetic architecture (1/3) « VANGUARQ Kinetic architecture (1/3) fLUX, Binary Waves – Lab[au] Another great project by LAb[au], “fLUX binary waves” is an urban and cybernetic installation based on the measuring of infrastructural ( passengers, cars…) and communicational ( electromagnetic fields produced by mobile phones, radio…) flows and their transposition into luminous, sonic and kinetic rules. This relation between the installation and the urban activity happens in real time and sets each person as an element of the installation, as a centre of the public realm. The installation fLUX, binary waves is constituted by a network of 32 rotating and luminous panels of 3 meter-high and 60 centimetres wide, placed every 3 meters to form a kinetic wall. The panels rotate around their vertical axis, and have a black reflective surface on one side, the other being plain mat white. Shih Chieh Huang Installation artist Shih Chieh Huang transforms spaces with everyday objects. The exhibition is on till June 6th 2009 Spinning Streetlights

The Instagram Architecture Facebook Bought for a Cool Billion Dollars It's been a well kept secret, but you may have heard Facebook will Buy Photo-Sharing Service Instagram for $1 Billion. Just what is Facebook buying? Here's a quick gloss I did a little over a year ago on a presentation Instagram gave on their architecture. In that article I called Instagram's architecture the "canonical description of an early stage startup in this era." Little did we know how true that would turn out to be. If you want to learn how they did it then don't take a picture, just keep on reading... Instagram is a free photo sharing and social networking service for your iPhone that has been an instant success. The Instagram team has written up what can be considered the canonical description of an early stage startup in this era: What Powers Instagram: Hundreds of Instances, Dozens of Technologies. Instagram uses a pastiche of different technologies and strategies. We'll just tl;dr the article here, it's very well written and to the point.

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