OpenIDThursday, 2nd April 2009
On the ground at the G20 protests. Roo Reynolds got trapped in the square mile. 
8:06 am
Amazon Elastic MapReduce (via) Hadoop as a service. Basically a web based GUI around Hadoop—you could roll this yourself on EC2 but for a small markup on regular EC2 prices you get to avoid the extra work setting everything up. Data processing scripts can be written in Java, Ruby, Perl, Python, PHP, R, or C++ and are loaded in to S3 before firing off the job. 10:25 am
Heap Dump Analysis. Using jmap to dump the JVM’s memory to disk, then analysing it using the visualvm GUI tool. 10:34 am
We advise startups to launch when they’ve added a quantum of utility: when there is at least some set of users who would be excited to hear about it, because they can now do something they couldn’t do before.
— Paul Graham 10:43 am
Google uncloaks once-secret server. Instead of a data centre wide UPS and redundant power supplies, each Google server has its own 12V battery. They live in standard shipping containers, each holding 1,160 servers. 10:47 am
Tracking UK Liberal Indecency. The mashup I’ve been waiting for: Tom Hume used the Guardian Content API to track swearword usage over time. 4:44 pm
