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Following on from examining Quora’s technology, I thought I would look at a tech company closer to home. Home being Vancouver, BC. While the tech scene is much smaller here than in the valley, it is here. In fact, Vancouver boasts the largest number of entrepreneurs per capita. Summify.com is a website that strives to make our lives easier and helps us deal with the information overload we all exp
Quora has taken the tech and entrepreneurial world by storm, providing a system that works so fluidly that it is sometimes hard to see what the big fuss is all about. This slick tool is powered, not only by an intelligent crowd of askers and answerers, but by a well-crafted backend created by co-founders who honed their skills at Facebook. It is not surprising that, with all the smart people using
If you have read my previous post, “Map-Reduce With Ruby Using Hadoop“, then you will know that firing up a Hadoop cluster is really simple when you use Whirr. Without even ssh’ing on the machines in the cloud you can start-up your cluster and interact with it. In this post I’ll show you that it is just as easy to fire up a Cassandra cluster on Amazon EC2. Install Whirr I will fly through the setu
In this post I will explain the concept behind “zero-copy”, which is feature of the Linux allowing for faster transfer of data between pipes, file-descriptors and sockets. I will demonstrate how you can use this functionality in your Ruby projects using a code example. This functionality has been implemented in C, Java, Ruby, Perl and nameless other languages, but in this blog I will focus on the
Here I demonstrate, with repeatable steps, how to fire-up a Hadoop cluster on Amazon EC2, load data onto the HDFS (Hadoop Distributed File-System), write map-reduce scripts in Ruby and use them to run a map-reduce job on your Hadoop cluster. You will not need to ssh into the cluster, as all tasks are run from your local machine. Below I am using my MacBook Pro as my local machine, but the steps I
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