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This is a guest post by Doug Barth, a software generalist who has currently found himself doing operations work at PagerDuty. Prior to joining PagerDuty, he worked for Signal in Chicago and Orbitz, an online travel company. A little over six months ago, PagerDuty switched its production MySQL database to
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How does the Wayback Machine work? Now with over 400 billion webpages indexed, allowing the Internet to be browsed all the way back to 1996, it's an even more compelling question. I've looked several times but I've never found a really good answer. Here&
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Our last article on Disqus: How Disqus Went Realtime With 165K Messages Per Second And Less Than .2 Seconds Latency, was a little out of date, but the folks at Disqus have been busy implementing, not talking, so we don't know a lot about what they are doing
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Here's an Update On Disqus: It's Still About Realtime, But Go Demolishes Python. How do you add realtime functionality to a web scale application? That's what Adam Hitchcock, a Software Engineer at Disqus talks about in an excellent talk: Making DISQUS Realtime (slides). Disqus
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When we last visited WhatsApp they’d just been acquired by Facebook for $19 billion. We learned about their early architecture, which centered around a maniacal focus on optimizing Erlang into handling 2 million connections a server, working on All The Phones, and making users happy through simplicity. Two years
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This is a guest repost by Pete Soderling, Founder at Hakka Labs, creating a community where software engineers come to grow. In response to a recent post from MongoHQ entitled “You don’t have big data," I would generally agree with many of the author’s points. However, regardless
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This is a guest repost by Rotem Hermon, former Chief Architect for serendip.me, on the architecture and scaling considerations behind making a startup music service. serendip.me is a social music service that helps people discover great music shared by their friends, and also introduces them to their “music
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Rick Reed in an upcoming talk in March titled That's 'Billion' with a 'B': Scaling to the next level at WhatsApp reveals some eye popping WhatsApp stats: What has hundreds of nodes, thousands of cores, hundreds of terabytes of RAM, and hopes to serve
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This is a guest post by Dave Hagler Systems Architect at AOL. The AOL homepages receive more than 8 million visitors per day. That’s more daily viewers than Good Morning America or the Today Show on television. Over a billion page views are served each month. AOL.com has
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HackerEarth is a coding skill practice and testing service that in a series of well written articles describes the trials and tribulations of building their site and how they overcame them: Scaling Python/Django application with Apache and mod_wsgi, Programming challenges, uptime, and mistakes in 2013, Post-mortem: The big
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Raymond Blum leads a team of Site Reliability Engineers charged with keeping Google's data secret and keeping it safe. Of course Google would never say how much data this actually is, but from comments it seems that it is not yet a yottabyte, but is many exabytes in
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This is a guest post by Eric Czech, Chief Architect at Next Big Sound, talks about some unique approaches taken to solving scalability challenges in music analytics. Tracking online activity is hardly a new idea, but doing it for the entire music industry isn't easy. Half a billion