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Open source plays an integral role within engineering at Cerner. In addition to using open source software throughout our architecture, we recently released a few projects back to the community via our Github organization. Today, we’re happy to announce that Cerner is now a sponsor of the non-profit Apache Software Foundation (ASF). The ASF is home to several projects that are essential components in many of our systems. We’ve blogged previ..
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Have you ever needed to convert a 2 dimensional array into a CSV then force a download? Well, I have, and here is how I did it: Array Every internal array must have the same keys. These keys may be set to null, but the key must exist. Below is a sample array that we can work with through this example. [ [ 'title' => 'How to be Good at Life' , 'author' => '@GRTaylor2' , 'url' => 'https://medium.com/better-h..
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Deutsches Bier ist weltbekannt, aber wie genau wird es gebraut? Welche Zutaten dürfen verwendet werden? Diesmal sind wir zu Besuch in einer Brauerei. Prost!
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Isn’t A/B testing just “40% is better than 30%”? You have a product and want to encourage more people to complete a specific task. You have 2 ideas, you decide to A/B test them to see which is better. So, you put your users into two groups (A and B) where each group sees a different solution, and then measure which group is more successful at completing the task. After 200 total tests, 30 out of 100 people in Group A completed the task, whi..
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Thoughtworks has always been passionate about diversity, and we realize that the IT industry is not as equitable as it should be. There are several reasons for this, especially when it comes to gender diversity. Different social factors contribute to this imbalance in each country. When it comes to women enrolling in engineering in India, there is a clear upward trend for the following reasons:
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We’ve just uploaded a new how do I tutorial for push notification . This tutorial covers the basics and is complementary to the post we published a while back covering push . Notice: This post was automatically converted using a script from an older blogging system. Some elements might not have come out as intended…. If that is the case please let us know via the comments section below. Archived Comments This pos..
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Today at the Open Compute Summit, CEO Mark Zuckerberg said that "In the last three years alone, Facebook has saved more than a billion dollars in building out our infrastructure using Open Compute designs.s This post Facebook Saves a BILLION Dollars via Open Compute Designs first appeared on Dan Stroot's Blog
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I decided to record some screencasts to show how easy it is to deploy GlusterFS using Puppet-Gluster+Vagrant . You can follow along even if you don’t know anything about Puppet or Vagrant. The hardest part of this process was producing the actual videos! If recommend first reading my earlier articles if you’re planning on following along: Vagrant on Fedora with libvirt Vagrant vsftp and other tricks Vagrant clustered S..
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I decided to record some screencasts to show how easy it is to deploy GlusterFS using Puppet-Gluster+Vagrant . You can follow along even if you don’t know anything about Puppet or Vagrant. The hardest part of this process was producing the actual videos! If recommend first reading my earlier articles if you’re planning on following along: Vagrant on Fedora with libvirt Vagrant vsftp and other tricks Vagrant clustered S..
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This is my second teardown of Ingress: version 1.44.0 . Please read my first teardown where I begin by explaining what this is, if you are confused. With that out-of-the-way. Here is my 2nd teardown of Ingress Glyphs, Glyphs, Glyphs I first discovered traces to these
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I spend quite a bit of time writing Python in Sublime Text, navigating documents whose line counts range from ten to five hundred. System variables — “False”, “s”, “Y” — and integers render in purple, strings in yellow, flow control statements — “for”, “while”, “if” — in red, and built-in functions — “open”, “sorted”, “len” — all display with an electric blue tint. These keywords only make up a small portion of my scripts, however; for the ..
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Speaking of Erlang and AdRoll … now is probably a good time to let you know AdRoll will be acting as a sponsor at the Erlang Factory SF Bay Area Conference this coming March. Our very own Brian Troutwine ( @bltroutwine ) will be giving a talk on the complex problems involved in live monitoring our real-time bidding system. And just to put that in perspective a bit, we’re talking about live monitoring everything that could possibly go wro....
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This is a subject I’ve been pondering on for a while. I think we all have an urge to mark our stamp on this world, to graffiti ‘I was here–don’t forget me’. Yet, as a programmer, where is my legacy? via A programmer’s legacy .
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Pro Git Workflow is an interesting collection of Git shortcuts, aliases and workflows. Nothing really new but give it a shot if you want to improve your git-fu beyond basics.
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Bug Analysis: Some Checkboxes Get Myseriously Deselected Some of the Time
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www.databasesandlife.com
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12 years ago
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eng
How would you diagnose the following bug? A number of checkboxes representing user interests (Football? Music?); user can select/deselect their interests. Software has worked well for years in production. Suddenly intermittent reports start coming in that sometimes some checkboxes get unchecked by themselves. You test live, you test on the test server, all is good. But the reports keep on coming, leading you to suspect that ..
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25th January was a rather unfortunate day for us. The monthly challenge - January Jackpot 2014 which was scheduled at 9:30 PM that day was cancelled due to turn of events going wrong at the worst possible time. We regret once again for the incovenience caused to you, and this is a postemortem of what really happened behind the scenes. It was Saturday, and the day was sunny here. Everything was running smoothly as usual. The whole Hacker....
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Pro Git Workflow is an interesting collection of Git shortcuts, aliases and workflows. Nothing really new but give it a shot if you want to improve your git-fu beyond basics.
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Shillo”, “Shil-lo is what my friends call me”. “O wow, that’s a beautiful name. Incidentally we are also in Shillong. Did your parents love Shillong so much that they named you after it? Though, I don’t question the beauty of either.” “May be. May be”, she smiled. “Or maybe that’s a fake name you tell … Continue reading The Beckoning
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I'll be holding open office hours all day this Tuesday January 28th at the Scrib coworking space on Broadway near Spruce (basement level in office building where Unseen Bean is). I'm a full-stack web developer and veteran software developer, these days specializing in node.js and JavaScript. Come by for a code review, Q&A on node.js as a technology platform choice, pair programming, a plain-English explanation of what the heck a session coo..
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I'll be holding open office hours all day this Tuesday January 28th at the Scrib coworking space on Broadway near Spruce (basement level in office building where Unseen Bean is). I'm a full-stack web developer and veteran software developer, these days specializing in node.js and JavaScript. Come by for a code review, Q&A on node.js as a technology platform choice, pair programming, a plain-English explanation of what the heck a session coo..
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My first ever Global Game Jam was actually the first ever Global Game Jam (2009), in Perth, Western Australia. I’d been working at Interzone Games at the time and knew many people who would be participating. I think we were a group of 6 people and I did (bad) art for a game we called Little Shop of Farters .
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Rather than asking “ Is Yahoo Even Worth Trying To Save? ”, a more apropos question would ask not if Yahoo! was worth rescuing, but instead if Marissa Mayer — or anyone, for that matter — could actually keep the company afloat, for to operate under the assumptions imposed by the latter would be to approach this issue from the wrong direction entirely. As Harshil Shah points out in his aforecited article, Steve Jobs managed a drastic cours..
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You can’t just do good work, you have to cultivate relationships and promote what you’ve done. That is, if your goal is for more people to read and enjoy your stuff.” Exactly . The Typist made a good point when responding to Sid’s article , saying, “People who have made it rarely admit the role randomness played in their journeys.” It’s a racket, this whole blogging thing, but we still wake up and do it every day instead of getting th..
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Kennst du die Bücher von Michael Ende? Hast du „Momo“ und „Die unendliche Geschichte“ gelesen? In dieser Folge kannst du ein Werk sehen – als Theaterstück!
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One of our enterprise developers started complaining about the performance of our Android port, which forced us to take a closer look at our rendering pipeline on Android. It seems that Google’s hardware acceleration broke pretty much all the best practices of the Android 2.x era and what we had wasn’t taking full advantage of “project butter” the codename for Google’s new Android rendering layer. This took a lot of effort to adapt and th..
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One day Kurt J. Mac decided to walk to the edge of Minecraft. Three years later he has turned what many would call a trivial pursuit into a viable revenue stream, allowing him to quit his job and take this journey full-time after identifying a way to distinguish his work and support himself thanks to the popularity of the videos he creates. His approach should sound familiar: almost everyone in the independent writer bubble — those fortunat..
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Interesting article from Benedict Evans talking about the difficulty of fully understanding even one aspect of the internet or the mobile device industry. Unfortunately, all too many not only fail to accept this, but operate under the assumption that they do, in fact, have a comprehensive grasp of multiple topics on a wide range of subjects. This erroneous thinking has a significant impact on the formation of many tech writers’ opinions and..
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I generally dislike interviews, but Jason Snell did a great job with this one. With the incredible popularity of the iPhone and, although to a slightly lesser degree, the iPad these days, it’s easy to disregard the Mac’s significance. Thankfully, Apple’s senior leadership does not make that same mistake. Permalink.
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Here I wrote about my initial attempts with Python. I started with a backup script for my home-computer because that’s what I needed at the time. Now I’m reviewing and tweaking it. My considerations at the time of writing the initial script were: It should check if the directories actually exist. It should ask for confirmation before doing anything I needed the script to backup the specified folder to the specified location. It should....
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Portfolio Composition for Long Term Effectiveness
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blog.raymond.burkholder.net
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12 years ago
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eng
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Portfolio Composition for Long Term Effectiveness
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blog.raymond.burkholder.net
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12 years ago
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eng
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Wer pflegt Tiere, die keinen Besitzer mehr haben? Welche Tiere leben in einem Tierheim? Und wie kann man ihnen selbst helfen? Das lernst du im Bandtagebuch.
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Theres a lot of back and forth on NoSQL databases. The unfortunate part with all the back and forth and unclear definitions of NoSQL is that many of the valuable learnings are lost. This post isn’t about the differences in NoSQL definitions, but rather some of the huge benefits that do exist in whats often grouped into the schema-less world that could easily be applied to the relational world. Forget migrations Perhaps the best thin....
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Theres a lot of back and forth on NoSQL databases. The unfortunate part with all the back and forth and unclear definitions of NoSQL is that many of the valuable learnings are lost. This post isn’t about the differences in NoSQL definitions, but rather some of the huge benefits that do exist in whats often grouped into the schema-less world that could easily be applied to the relational world. Forget migrations Perhaps the best thin....
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I'm sorry, I've been terrible at keeping everyone up to date with Lemma. If you want to see what I've been up to since Alpha 3, my TIGSource DevLog has a few posts you might have missed. Starting now I'll be focusing more on blogging, so expect more posts in the coming days! Here are some highlights from the past... gosh. Seven months? Wow. Player movement has been drastically improved. No more floaty, slow acceleration. New auto-resp....
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A few years ago when I decided to start exploring the world of PC gaming, I set out with three criteria: it could not, like major titles such as Call of Duty or Ghost Recon, require a significant amount of capital just for the the privilege of participating in this hobby. Whatever I ended up choosing had to have a low price tag or, preferably, cost nothing at all. Further, my distraction of choice had to run well on a mediocre machine: I re....
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Among the many compelling talks that attendees come to expect every year at the Strange Loop conference was a session given by Ben Johnson that provided an overview of a new distributed consensus protocol originating from research at Stanford University, named Raft. What is distributed consensus? Distributed consensus can be described as the act of reaching agreement among a collection of machines cooperating to solve a problem. With the ri..
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For the past year, every Wednesday night at about 6:00 p.m. work stops! Since I have been working for Levers there has been a weekly hack night. To put it simply: “Stop your real work and work on something fun!”" There have been some winning hack night projects and some losing ones. Let’s take a look: Magic: The Gathering API : (winning) Author: Michael Curry Link: https://mtgapi.com Description: There was no card API for Magic the ....
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Diesmal sind wir zu Besuch im Filmstudio. Wie werden Filme gedreht und wie funktionieren die Spezialeffekte? Wirf mit uns einen Blick hinter die Kulissen!
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A few awesome readers have posted comments in Computing Homology to the effect of, “Your code is not quite correct!” And they’re right! Despite the almost year since that post’s publication, I haven’t bothered to test it for more complicated simplicial complexes, or even the basic edge cases! When I posted it the mathematics just felt so solid to me that it had to be right (the irony is rich, I know).
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A few awesome readers have posted comments in Computing Homology to the effect of, “Your code is not quite correct!” And they’re right! Despite the almost year since that post’s publication, I haven’t bothered to test it for more complicated simplicial complexes, or even the basic edge cases! When I posted it the mathematics just felt so solid to me that it had to be right (the irony is rich, I know).
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A few awesome readers have posted comments in Computing Homology to the effect of, “Your code is not quite correct!” And they’re right! Despite the almost year since that post’s publication, I haven’t bothered to test it for more complicated simplicial complexes, or even the basic edge cases! When I posted it the mathematics just felt so solid to me that it had to be right (the irony is rich, I know).
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