Cassandra: Lessons Learned

After using Cassandra for 3 years since version 0.8.5, I thought I'd put together a blurb on lessons learned. Here it goes! Use Cases What works Anything that involves high speed collection of data for analysis in the background or via batch. For example: Logging and data collection Web servers Mobile devices Internet of things … Continue reading Cassandra: Lessons Learned

Things I wish Apache Cassandra was better at

At first I wanted to name this article “My personal list of grievances against Apache Cassandra”, but I decided to take a more positive approach. Only Java developers need apply Surely you can use Cassandra with non-Java clients but the reality is that administering and maintaining Cassandra itself requires very significant knowledge of Java and … Continue reading Things I wish Apache Cassandra was better at

Have computers become too complicated for teaching ?

I learned computer programming on a Cold War era Soviet programmable calculator called Elektronika MK-61. It was a very simple device that used a four element calculation stack, a handful of registers, and programming it was very much like writing assembler code. It had a number of undocumented features that made simple games possible. It's … Continue reading Have computers become too complicated for teaching ?

Thoughts on Wall Street Technology

Last week I went on vacation and missed the news that a software error at a major market maker caused almost half a billion dollar worth of trading errors, which required a rescue by a group of investors. Mainstream media is quick to point out that high frequency trading should be more regulated, but as … Continue reading Thoughts on Wall Street Technology

Java, Linux and UNIX: How much things have progressed

I am putting together an Ubuntu Server box to act as a RAID file server for our family photo, video and document archives. It’s been a long time since I put together a hardware system myself and I am enjoying the experience. It is good to catch up on new technologies – last time I … Continue reading Java, Linux and UNIX: How much things have progressed