Goman numerals
I made a roman numeral encoder in Go. Nifty.
httptrace, a new Go debugging tool
Today I was investigating why HTTP redirects resulted in more persistent connections staying open than I was expecting. I found myself digging around deep inside net/http/transport.go and I noticed the new net/http/httptrace package. It is new in Go 1.7, which is currently in beta. net/http/httptrace is lightly documented, and because it is new, there are…
The SRE book
I gave a Lightning Talk at SREcon16 and I was lucky enough to win the SRE book from Google while I was there. Here are some notes of things I was thinking while reading it. First, this is a phenomenal piece of work, that really marks a special point in time: the dawn of the possibility of…
A Kafkaesque Experiment
As part of my interview prep, last night I challenged myself to do the following: Make a Kubernetes cluster (on Google Cloud Platform) …running Dockerized Zookeeper (1) and Kafka (2) …with Kafka reporting stats into Datadog Send in synthetic load from a bunch of Go programs moving messages around on Kafka Then run an experiment to kill…
Interview Questions I Hope I Get
I have an interview coming up, and so my “keep in shape hacking time” has been recently devoted to interview preparation. I thought I would make a post about what’s in my head, both as a way to solidify it (no better way to learn something than by teaching it) and in case this interview…
git log ––grep “Résumé”
(This is an old post, which is missing years and years of interesting commits from my work at the DEDIS lab at EPFL. But it is still a good representation of what I can do for future clients and future team mates.) For a while now, it’s become clear that a useful and important piece…
I’m speaking at SREcon16
I’ve just been informed that my proposal for a Lightning Talk on HTTP/2 has been accepted for SREcon16 in San Jose, CA on April 7th and 8th. Come meet me!
Protected: Seeking around in an HTTP object
There is no excerpt because this is a protected post.
Dynamic DNS circa 2016
In the old days, if you had an ISP that changed your IP address all the time but you wanted to run a server, you used dynamic DNS, i.e. a hacky script talking to a hacky API on an hacky DNS provider. These days, if you bring up a cloud server from time to time…
The most important thing when go-fuzzing
The most important thing to know, when you are using go-fuzz, is that the cover metric should be increasing. I didn’t know that and I wasted one 12 hour run of fuzzing because my fuzzing function was misbehaving in a way that made it return the same useless error for every input no matter what….