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10k in under 50 mins — Runner's World UK Forum . Garmin Forerunner 230 & 235 In-Depth Review (DC Rainmaker) . Harvard's Running barefoot or in minimal footwear FAQ . How to run a sub-50 10K - The Running Bug . Is Running Good Or Bad For Your Health? . Mornington Chasers running club . Open track: Race Management System . Review : Newton Gravity IV & Motion IV | Ramblings of an IronRose . The Race Organiser . Training towards a sub ..
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cmus, a small, fast and powerful console music player for Unix-like OS . mps-youtube . mpv (a fork of mplayer2 and MPlayer) . Multimedia on Linux Command Line: wget, PdfTK, ffmpeg, flac, SoX . PLEX (stream your media everywhere). Soul – A language and IDE for audio coding .
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Eating My Way Through Nishiki Market, Kyoto | Ever In Transit . Fushimi Inari Temple : 4KM mountain trail lined with bright orange shinto gates. Golden Pavillion (macha and biscuits at tea house). Hakone (day trip for hot baths), see Yuryo spa. Also the pirate boat. Kibune . Kinkakuji Temple . Kiyomizu Temple . Kuramadera Temple & Kibune Shrine: More peaceful shrine. Kyoto itineraries . Kyoto travel tips (doc) . Kyoto walking maps . ..
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For people who may not be entirely familiar with the software development process, understand that it's not like we start off with a fixed pool of issues which…
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SICP in Clojure - Chapter 5 In one of the previous blog posts I have announced that I would like to start a new series of posts. It is a persistent journal from my journey through aforementioned book. I hope that you will enjoy it and find it useful - the main goal is to make this series a place where we can return in future, recall ideas and thoughts that accompanied reading process. Introduction We are heading to the end of the book. I....
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If you haven’t read the first post on fairness, I suggest you go back and read it because it motivates why we’re talking about fairness for algorithms in the first place. In this post I’ll describe one of the existing mathematical definitions of “fairness,” its origin, and discuss its strengths and shortcomings. Before jumping in I should remark that nobody has found a definition which is widely agreed as a good definition of fairness in th..
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If you haven’t read the first post on fairness, I suggest you go back and read it because it motivates why we’re talking about fairness for algorithms in the first place. In this post I’ll describe one of the existing mathematical definitions of “fairness,” its origin, and discuss its strengths and shortcomings. Before jumping in I should remark that nobody has found a definition which is widely agreed as a good definition of fairness in th..
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If you haven’t read the first post on fairness, I suggest you go back and read it because it motivates why we’re talking about fairness for algorithms in the first place. In this post I’ll describe one of the existing mathematical definitions of “fairness,” its origin, and discuss its strengths and shortcomings. Before jumping in I should remark that nobody has found a definition which is widely agreed as a good definition of fairness in th..
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This is just some general information and links about the issues in Ohio, or, more specifically, the issues I’ll get to vote on, this November. I’m going to just put information here, and not say what should the vote be. The links I put might, however.
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I ran into an interesting effect this weekend while working on some parallel counting code. After a little experimentation I determined that it is likely to be a false sharing effect. False sharing is where the same cache line is read/modified by multiple different threads in a loop, and can cause major performance degradation. The counting code loop looked like this: for(size_t i=0; i |
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It’s been a while since my last Home Improvement post , which is bad because it means I’m not improving the truck. And trust me, the truck certainly does have areas for improvement . Anyway, I mentioned that I got a new bike recently. This was great but, like every time I get something new, it posed an issue. The Situation I’m now in possession of a large, 50 pound hunk of metal and rubber, which I have to store somewh..
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It’s been a while since my last Home Improvement post , which is bad because it means I’m not improving the truck. And trust me, the truck certainly does have areas for improvement . Anyway, I mentioned that I got a new bike recently. This was great but, like every time I get something new, it posed an issue. The Situation I’m now in possession of a large, 50 pound hunk of metal and rubber, which I have to store somewh..
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Recently, I was asked to give a talk at a local front-end meetup. I'd never spoken at any meetups before that. Let's just say I've been a devoted member of the…
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No matter how good we are at explaining, we cannot directly ground all concepts for everybody. In a video interview, Richard Feynman explained how he thinks about physics. One question asked him to explain how electro-magnetic forces work. He explained that they exist in the form they do. There is no simpler explanation to the electro-magnetic forces than that, he said. Can we say electro-magnetic forces worked like an everyday o....
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It is a requirement of many customer projects of mine to have a "remember me" or "keep me logged in" checkbox on the log-in form. I am not aware of any standard approach to the subject; I suspect every company invents their own (and then blogs about it?) Here's what I do when asked to implement this feature, as online on art.world . Here are the requirements as I see them: Users should be able to use the “remember me” function from one..
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Comments in posts can be a great source of recommendations. Here's a way to extract post links using Emacs and enlive . (require 'enlive) ;; https://github.com/zweifisch/enlive (require 'org) (defun ar/input-clipboard-url-or-prompt () "Return a URL from clipboard or prompt user for one." (let* ((clipboard (current-kill 0)) (url (if (string-match "^https?://" clipboard) clipboard (read-string "URL: ")))) (unless (string-match "^ht....
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The slides of my talk at Percona Live 2015 (Amsterdam) are online . It was titled “MongoDB and REST APIs a Match Made in Heaven” and it was meant as an introduction to Mongo, REST principles and the Eve python framework. Overall it has been a pleasant experience, although I found that splitting 300 attendees through seven concurrent tracks ultimately led to too much fragmentation. People often found themselves with 2-3 interesting talks ..
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Affinity Designer: the perfect tool for UI and UX design . Affinity Publisher – Professional Desktop Publishing Software . Build a static site with Material Design Lite . Eye dropper Chrome extension (pick colors in browser) . Generate - Coolors.co . Google, but for colors (Hacker News) . Nodesign.dev | Design less develop more. . PaintCode - Turn your drawings into Objective-C or Swift drawing code . Paletton - The Color Scheme Des..
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The slides of my talk at Percona Live 2015 (Amsterdam) are online . It was titled “MongoDB and REST APIs a Match Made in Heaven” and it was meant as an introduction to Mongo, REST principles and the Eve python framework. Overall it has been a pleasant experience, although I found that splitting 300 attendees through seven concurrent tracks ultimately led to too much fragmentation. People often found themselves with 2-3 interesting talks ..
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Managing Containerized Data Pipeline Dependencies With Luigi
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tech.nextroll.com
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10 years ago
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eng
This is the second article in a series that describes how we built AdRoll Prospecting. This time, we’ll talk about managing batch job dependencies. Batch processing and data pipeline coordination is one of the oldest application of computer systems. In late 1950s US Navy and NASA first started using computers for task scheduling—tasks being assembly jobs performed by people. Controlling people that way is what topological sorting algor....
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Bosun is a monitoring and alerting system developed by the good folks at Stack Exchange, then open sourced for the rest of us. It’s written in Go, meaning its monitoring agents can run anywhere that Go can drop a binary… which is just about everywhere. So what exactly does it do and how does it compare to the likes of New Relic, CloudWatch, Nagios, Splunk Cloud, Server Density, and other monitoring tools?
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Caching data is an essential part in many high-load scenarios. A local 1st-level cache can augment a shared 2nd-level cache like Redis and Memcached to further boost performance. An in-process cache involves no network overhead, so the cache speed is only limited by local resources like CPU, memory transfer speed and locking.
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Caching data is an essential part in many high-load scenarios. A local 1st-level cache can augment a shared 2nd-level cache like Redis and Memcached to further boost performance. An in-process cache involves no network overhead, so the cache speed is only limited by local resources like CPU, memory transfer speed and locking.
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Bosun is a monitoring and alerting system developed by the good folks at Stack Exchange, then open sourced for the rest of us. It’s written in Go, meaning its monitoring agents can run anywhere that Go can drop a binary… which is just about everywhere. So what exactly does it do and how does it compare to the likes of New Relic, CloudWatch, Nagios, Splunk Cloud, Server Density, and other monitoring tools?
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We’ve had a simple ActionHero demo site for a while now, which shows how easy it is to get started with the framework, but until now, we’ve…
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Since I started my career on the web, I've been building websites that follow standard grid layouts. It got to a point where I was telling an intern at my…
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The three dots in a method parameter type is a feature called Java varargs . It was introduced in Java 5 and is formally known as variable arity methods or variadic functions. Contents 1 What is varargs 2 Varargs parameter order 3 Use varargs cautiously 3.1 Type-checking 3.2 Extra allocations 3.3 Unexpected behavior 4 When to use varargs What is varargs Varargs methods accept zero or more ..
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The future of web application development looks a bit different than what we are all used to. I'll show you how to build a simple full-stack JavaScript app using Node.js on the backend, React on the frontend, Webpack for client-side module support, and Netflix's Falcor as an efficient and intuitive alternative to the traditional REST API.
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I like to think I’m pretty environmentally friendly. I try to minimize my waste , take quick showers, and not run unnecessary appliances, like heating and cooling systems. I’m definitely not a super earthy-crunchy-Hippie-type, but I’m at least vaguely cognizant of the atrocities I commit against Mother Nature. My main sin against the planet, aside from just being American, is the fact that I run errands in an 11,500 pound tank that gets 8 ..
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