Entries in 2010
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What new tools and technologies you learnt recently are worth it?
Redis: http://simonwillison.net/2009/Oc... and http://simonwillison.net/static/...
[... 144 words]Will Redis support per-database persistence configuration?
I don’t know if that’s on the roadmap (you’d need to ask antirez on the mailing list or Twitter), but it should be easy enough to run multiple Redis instances with different settings—especially on a multi core machine.
[... 52 words]Why are tech conferences so expensive to attend?
Large conferences with big name speakers are expensive to organise. They are also priced to what the market will bear.
[... 103 words]Why do so many Internet sites end with the letter ’r’ (but not ’er’)? Think about Tumblr, Dopplr, Migratr. What’s behind this?
We just launched a project called lanyrd, which is a play on lanyard. We partly picked the name because the domain was available, but there’s actually a big advantage to using a made-up word: it’s really easy to search for coverage and feedback on Twitter, Google Blogsearch and the like. The string “lanyrd” is almost exclusively used to discuss our project—had we used a dictionary word, tracking down feedback would have been a lot harder.
[... 105 words]Who are major competitors to Solr?
ElasticSearch is a really interesting one—it’s the same underlying search library (Lucene) and the same integration model (an HTTP interface) but takes quite a different approach. It hasn’t been around for a long time but it looks very impressive: http://www.elasticsearch.com/
[... 95 words]What is the largest production deployment of Server Side JavaScript?
I believe Flickr used to use Rhino for scripting the image processing (resizing, thumbnailing, sharpening) that was applied to every single uploaded photo. No idea if that’s still the case though.
[... 47 words]How do Solr, Lucene, Sphinx and Searchify compare?
Lucene is a Java library for creating and searching through a full text index. If you want to make use of it, you’ll need to write your own Java code that integrates with it.
[... 109 words]Does SQLAlchemy depend on MySQLdb?
No. SQLAlchemy can talk to all sorts of different DB-API compliant backends, including MySQL Connector/J (Jython only), MySQL Connector/Python, mysql-python (the MySQLdb module) and OurSQL—plus backends for many other databases. See the full list here:
[... 50 words]Django (web framework): Why did theonion.com stop using Drupal?
They wrote about their reasons in detail in a post to the Django sub-reddit a while ago: http://www.reddit.com/r/django/c...
[... 165 words]What is the best way to learn about setting up server software for Python based web apps?
I’m a big fan of Fabric for automated deployment scripts. Start by reading this tutorial: http://morethanseven.net/2009/07...
[... 40 words]In what circumstances should one use “magic quotes” in PHP?
Absolutely never. Magic quotes was a badly designed feature, and PHP has been trying to escape its legacy for years. If you are constructing SQL strings using string concatenation you’re asking for trouble—use prepared statements or a library that interpolates and correctly escapes variables for you.
[... 65 words]Which major companies are using Solr for search?
The Guardian newspaper uses Solr for its Open Platform Content API. http://www.guardian.co.uk/open-p...
[... 27 words]Which Solr app for Django is better: Haystack or django-solr-search (solango)?
I’d go with Haystack—while it supports multiple backends, I get the feeling Solr is the principle backend it was developed for. It’s extremely well documented in my opinion, and the SearchQuerySet API it gives you makes running low-level queries really easy if the higher level class-based view it provides don’t do quite what you want.
[... 109 words]What is the largest production deployment of CouchDB for online use?
The BBC have a pretty big CouchDB cluster, which they use mostly as a replicated key-value store. It’s used by their new identity platform which includes customisation features for iPlayer.
[... 47 words]What is the highest traffic website built on top of Django?
My best guess would be Disqus. Instagram are pretty enormous these days as well.
[... 31 words]What is the history of the Django web framework? Why has it been described as “developed in a newsroom”?
I was there!
[... 674 words]Getting married and going travelling
It’s been a busy month. On Saturday the 5th of June I married the wonderful Natalie Downe in a beautiful ceremony at Roedean School in Brighton. The reception had owls, cheese, a ferret, a golden eagle, amazing Turkish food, Jewish chair dancing and lovely guests. It was the happiest day of my life.
[... 342 words]Comprehensive notes from my three hour Redis tutorial
Last week I presented two talks at the inaugural NoSQL Europe conference in London. The first was presented with Matthew Wall and covered the ways in which we have been exploring NoSQL at the Guardian. The second was a three hour workshop on Redis, my favourite piece of software to have the NoSQL label applied to it.
[... 263 words]WildlifeNearYou talk at £5 app, and being Wired (not Tired)
Two quick updates about WildlifeNearYou. First up, I gave a talk about the site at £5 app, my favourite Brighton evening event which celebrates side projects and the joy of Making Stuff. I talked about the site’s genesis on a fort, crowdsourcing photo ratings, how we use Freebase and DBpedia and how integrating with Flickr’s machine tags gave us a powerful location API for free. Here’s the video of the talk, courtesy of Ian Oszvald:
[... 171 words]Some questions about the “blocking” of HTML5
Some background reading. I was planning to fill in answers as they arrive, but I screwed up the moderation of the comments and got flooded with detailed responses—I strongly recommend reading the comments.
[... 136 words]WildlifeNearYou: It began on a fort...
Back in October 2008, myself and 11 others set out on the first /dev/fort expedition. The idea was simple: gather a dozen geeks, rent a fort, take food and laptops and see what we could build in a week.
[... 558 words]