I recently put on my detective hat and tracked down a bug in network error recovery in a popular PostgreSQL library. Below, we'll walk through the process of bugfinding and iteratively making the feedback loop smaller and smaller. In order to find and fix the bug I
In my first summer of graduate school my code suddenly stopped working
because Fortran and Python (via pow() in C) do exponentiation differently.
Once I debugged and understood the problem, I learned about the highly
optimized assembly code produced by Fortran for integer exponents.
To give a sample of the …
Adopting a service mesh like Istio is a huge undertaking. (Let's set aside for this discussion whether it's a good idea to undertake.) A fairly common issue when getting a mesh up and running is misconfiguration. When trying to debug and determine where and how things are misconfigured, the network …
I've been writing a library for running PostgreSQL migrations in Go. One of the primary pieces of advice I keep coming across is
Beware of lock queues, use lock timeouts
In other words, each migration stage should happen instantaneously (or almost instantaneously). For real-time applications, if a migration runs "for …
I recently1 had the privilege of co-authoring a blog post on the Blend engineering blog with my esteemed colleague Austin Poore. Our engineering organization is growing like crazy right now and it's a lot of fun so if any of this post is interesting to you, check out our …