While most focus in Cassandra world is on the upcoming 4.0 release, or perhaps on our project to add JSON and GraphQL APIs to Cassandra, a feature that excites me personally is much more fundamental and at the core of th

The Open Source Initiative recently organized its first conference: State of the Source 2020. I presented a talk In Defense of Extreme Copyleft, where I explored the boundaries of current network copyleft licenses and potential need for further - carefully deliberated - expansion of copyleft licensing.

The paper stating the RUM conjecture was published by a group of Harvard DASLab researchers in 2016. They also have created a more easily digestable RUM conjecture home page with graphics. Yet, in this blog post I try to describe the idea in even simpler terms than that page.

An engineer I work with asked me for tips on what to read about database benchmarking. I told him I've learned a lot from reading Mark Callaghan's blog. Now that I think about it, articles and conference talks from Baron Scwhartz were also, or even more, fundamental early on when I was getting started.

Thank you for writing to usvia Twitter. I was pleased to wake up to your blog post about looking for a new job, as the skills you mention are exactly what I’m trying to hire for one of my teams at Datastax.

When I choose technologies to use, or employers to work for, my system is based on sticking with a few things I believe in. Datastax happens to tick quite a few of those boxes:

I overheard - over-read, really - an internet discussion about database storage engines. The discussion was about what functionality is considered part of a storage engine, and what functionality is in the common parts of the database server. My first reaction was something like "how isn't this obvious?" Then I realized for a lot of the database functionality it isn't obvious at all and the answer really is that it could be either way.

In 8th grade, our home economics class got an assignment to create a scrapbook describing our adult life. Students would cut and paste - I mean literally, with scissors - pictures from magazines to create a portfolio with their 3 bedroom houses, one or two cars, a dog, and so on.

I of course did it a bit differently. I spent hours drawing a log cabin that my future family would live in. The cabin was in the wilderness in Lapland, where I operated some tourism related company as a family business. This was a few years before I would hear about the internet, or own a cell phone. But in my dream future I used a fax and satellite phone to operate my business. Btw, it was also years before I heard the word "startup" :-D