At the beginning of March every year, tech hordes from all over the world flee to Austin in order to spend couple of days at the city-wide circus called South by Southwest. Even though the festival is getting bigger and bigger every year and definitely loosing a bit of it's "cool" it's still worth a...
Caveat emptor : Amazon EC2 Reserved Instance Marketplace
AWS EC2 Reserved Instances sound like a great idea. You spend a lot with EC2, keep instances running for a long time and have predictable workloads throughout the year ? Reserved Instances to the rescue ! You pay a flat reservation fee upfront and reap the benefit of reduced computing cost over time. All sounds...
Making of Datasheet.net Demo Video
No project launch is complete without a making-of video. So here it goes ... Datasheet.net Demo Video - Making of from Supplyframe on Vimeo.
Monitoring WAL lag in PostgreSQL 9.x
When using streaming replication in PostgreSQL 9, it's important to know what the latency is between the master and slaves, especially when deploying on cloud based instances. Ideally, we'd like to know by how many bytes the WAL logs are lagging. PostgreSQL offers a neat way to check just that between a given slave and its...
Simple Website Monitoring using Clojure
Ad-hoc measurement of page load times across multiple web servers can be a drag. Quite often you end up with a number of screen windows doing bash timed curl loops with file redirects and some grep/awk magic. This tends to work OK until you need to get a bit more sophisticated, for example - compare...
