Author Archives: Ross

Munin plugins for Solr

I’ve been mucking around with Python recently and have written a couple of simple Munin plugins for Boards.ie’s Solr cluster (in the hope of helping to track down some annoying performance bugs). If you’re not familiar with Munin, it’s a bit like Nagios, (and if you haven’t heard of Nagios, it’s a network monitoring tool). Munin […]

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Google Plus

I’ve been playing on and off with Google’s new toy, Google+, for the last few days and while there are a plethora of opinion pieces all over the place, I figure what the hell, one more can’t really hurt (especially a nice short one that isn’t too gushing.) The Bad I think one way in […]

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Getting Windows 7 onto a USB stick using Ubuntu

I spent way too much time trying to do this so maybe this will save someone else some time. I haven’t owned a copy of Windows for years, and have been using Ubuntu as my solitary home and office OS for some time. Last week though, I decided I should have a copy of Windows […]

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Searching Boards.ie – Solr, EC2, SQS, SNS, Node.js

This is the first in a series of posts about the design and implementation of a search engine for Boards.ie. Boards.ie recently launched a new search engine – http://www.boards.ie/search/ – which is built upon Amazon Web Services using Solr with PHP as the glue. Currently, Boards.ie users are searching nearly 30 million posts almost a […]

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EC2: Create AMI from a running instance

Log into the AWS web console, find the instance you want to create an AMI from, right click and select “Create Image (EBS AMI)”. Follow the wizard. All the top results in Google are for The Long Way™ to do this. The Long Way has a bunch of useful things to take into consideration (security, […]

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Gender breakdown for software development in Ireland

This post was inspired by this TED talk from Sheryl Sandberg, which reminded me of this brilliant blog post by Jolie O’Dell. The whole women in tech thing is something which interests me (as a techie, as well as a human being), and there are loads of great discussions (and terrible ones) about it. Have […]

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Dublin Bus route statuses

I’ve thrown together a little hack that gives current Dublin Bus route status information in JSON format. Endpoint: http://rossduggan.ie/stuff/bus/ Simply calling the endpoint will return a JSON object of all bus routes and their associated statuses. Append ?route=x to the endpoint and you’ll get just the results for the route specified (or what it thinks […]

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Links for Friday, 3rd December 2010

Paul Conroy has written a little bookmarlet to add imgur previews to the Twitter web interface, and has a detailed explanation of how he’s done it. The Algorithm + the Crowd is not enough. I have a response post gestating. Defecting by Accident, A Flaw Common to Analytical People. This is “How to Win Friends […]

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Extracting information from a lot of images on disk using find

If you need to extract information from a large number of images on disk (and you’re using a *nix system), you could do worse than using find with Imagemagick’s command line tools. If you’re unfamiliar with find, I’d recommend reading the beginners guide on Linux.ie. It has terse and initially daunting syntax, but is one […]

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Links for 7th April, 2010

Leslie Jensen-Inman via A List Apart, examines the use of colour. Worth a read, especially for the tools she highlights: Graybit – see the web as a colourblind person sees it. Color Scheme Designer – impressive tool for color matching and testing. Check My Colours – Checks a URL for potential contrast problems. Clay Shirky […]

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