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Giuseppe Vettigli08/22/14
4245 views
0 replies

Quick HDF5 with Pandas

HDF5 is a format designed to store large numerical arrays of homogenous type. It cames particularly handy when you need to organize your data models in a hierarchical fashion and you also need a fast way to retrieve the data. Pandas implements a quick and intuitive interface for this format and in this post will shortly introduce how it works.

Abby Fichtner08/22/14
6797 views
0 replies

Why We Need to Teach Kids to Code

Coding (computer programming) is the art of creating anything from computer games and iPhone apps to computational models that help us improve health care. As our kids grow up, this ability to code will become as fundamental as reading and writing to their success, regardless of what occupation they ultimately choose.

Nikita Salnikov...08/22/14
2762 views
0 replies

Classloading and locking

This post is inspired by Pierre-Hugues Charbonneau’s article on how loading non-existing classes can severely hurt your performance. This brought back memories from a debugging session where the same problem surfaced a bit differently.

Chen Harel08/22/14
5111 views
0 replies

Route 53 Benchmark: The New AWS Geolocation's Surprising Results

How to choose between Geolocation and Latency routing? We tested DNS configurations across multiple EC2 regions using AWS Route 53 to find out

Chandra Munagavalasa08/22/14
2939 views
0 replies

Maximize your Customer Value – Think Lean, Go Lean and Stay Lean

Lean is more than just minimizing waste. A popular misconception of Lean is that it is suited only for manufacturing. In this article I will be discussing non-value added process and implementing Lean in software development.

Cloudify Community08/21/14
2602 views
0 replies

A Puppet Automation + MySQL Tutorial: Wordpress Install in 7 Short Steps

In this blog post I'd like to demonstrate how a cloud application orchestrator can complement already existing automation processes powered by configuration management tools, in this case we will demonstrate with Puppet.

Trevor Parsons08/21/14
2289 views
0 replies

Why We Love Log Management (and You Should Too)

It doesn’t matter if your title puts you in, being able to track down the big insights from your data is the secret-sauce every engineer is looking for. Collecting data is a step in the right direction, but organizing, monitoring, and reporting provides the insights necessary to make business decisions.

Eric Minick08/21/14
5699 views
0 replies

The argument for testing performance in production

Performance testing still has its place. It’s awesome for existing applications when looking for changes that degrade performance, and for major application launches where the scalability absolutely has to be right the first time.

Julien Danjou08/21/14
2130 views
1 replies

Tracking OpenStack contributions in GitHub

I've switched my Git repositories to GitHub recently, and started to watch my contributions statistics, which were very low considering I spend my days hacking on open source software, especially OpenStack.

Fer Troya08/21/14
2006 views
0 replies

Building Java applications that use .NET components on JRebel

Java enthusiasts love to combine technologies to deliver their products. Here we have an example of Spring MVC along with Javonet to create MS Office documents; efficiently developed using JRebel!

Dan Domkowski08/21/14
1464 views
1 replies

Cloud Behind the Firewall: Private PaaS and FedRAMP

Is your organization experiencing pain points related to meeting FedRAMP requirements? Learn how companies like JPMorgan Chase and McKesson take advantage of a policy-driven platform without hampering innovation, and how the Federal Government can, as well.

Ayende Rahien08/21/14
4782 views
6 replies

Question 6 is a trap, a very useful one

In my interview questions, I give candidates a list of 6 questions. They can either solve 3 questions from 1 to 5, or they can solve question 6. Question 6 requires that you create an index for a 15 TB CSV file, and allow efficient searching on it. While questions 1 – 5 are basically gate keeper questions.

Michael Crump08/21/14
4242 views
0 replies

My Angular App is Broken after Upgrading to the Latest Beta

I have been experimenting with AngularJS for a couple of months. After upgrading to 1.3.0-beta.18, I noticed the following code didn't work. I was previously using the latest stable build which is 1.2.22 as shown below:

Robert Diana08/21/14
4266 views
0 replies

Geek Reading August 20, 2014

These items are a combination of tech business news, development news and programming tools and techniques.

John Ferguson Smart08/20/14
6399 views
4 replies

BDD, Automated Acceptance Tests and Continuous Delivery: Dealing with Scenarios that are "Work-in-Progress"

One of the principle rules of Continuous Delivery is that you should never knowingly commit code that will break the build. When you practice test-driven development this is easy: you write a failing test (or, more precisely, a failing "executable specification"), make it pass, and then refactor as required.