Book Review: Designing Data-Intensive Applications

Posted on July 27, 2019 | 4 comments

What a great book Designing Data-Intensive Applications is! It covers databases and distributed systems in clear language, great detail and without any fluff. I particularly like that the author Martin Kleppmann knows the theory very well, but also seems to have a lot of practical experience of the types of systems he describes.

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Nordic Testing Days Tallinn 2019

Posted on June 15, 2019 | Leave a comment

At the end of May I attended Nordic Testing Days in Tallinn, Estonia. It was the first time I spoke at a conference outside of Sweden, and I had a great time. There was one day with tutorials, and two days with workshops and regular half hour talks. Here are my impressions: Continue reading →

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Book review: Accelerate

Posted on May 26, 2019 | 2 comments

The book Accelerate details the findings of four years of research on how DevOps affects various outcomes, such as software delivery tempo and stability, as well as the organizations’ profitability and market share. DevOps in this context means things like continuous delivery, automated tests, trunk-based development, and proactive monitoring of system health. It is quite clear that DevOps practices bring lots of benefits to organizations adopting them. The research findings are also in line with my own experience of DevOps.

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Posted in Programming, Testing, Work

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More Good Programming Quotes, Part 3

Posted on April 3, 2019 | 1 comment

I like good programming quotes. Here are some new ones I have found since my last posts.

Complexity

“Why do people find DNS so difficult? It’s just cache invalidation and naming things.” – @jdu Continue reading →

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Programming: Math or Writing?

Posted on March 30, 2019 | 4 comments

Is programming like math, or is it like writing? I think there are elements of both in it, even though programming is a discipline of its own. Nevertheless, it is interesting to think about what aspects are like math, and what aspects are like writing. Maybe it will even lead to a better understanding of what programming is.

Like Math

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Posted in Programming

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Developer On Call

Posted on December 3, 2018 | 13 comments

For the system at work, I am on call one week every seven weeks. For most of the past ten years, I have been on organized on call rotations for the systems I have been developing. I think being on call is a logical way of taking responsibility for your work. You also learn a lot from it. However, it is stressful and an inconvenience, so you should get paid for it. Continue reading →

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My Favorite Command-Line Shortcuts

Posted on August 11, 2018 | 19 comments

I use a shell every day. Almost always, I want to repeat a previous command, or repeat it after a slight modification. A very convenient way is to use arrow-up to get the most recent command back. Another common trick is to type ctrl-r and incrementally search for a previously used command. However, there are two other tricks for repeating previous commands that I use all the time, which are not as well known. Continue reading →

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