August 03, 2015 11:26 AM
CloudFlare’s DNS server, RRDNS, is entirely written in Go and typically runs tens of thousands goroutines. Since goroutines are cheap and Go I/O is blocking we run one goroutine per file descriptor we listen on and queue new packets for processing....
July 01, 2015 1:26 PM
CloudFlare's DNS server, RRDNS, is written in Go and the DNS team used to generate a file called version.go in our Makefile. version.go looked something like this....
June 18, 2015 11:14 AM
Something that often, uh... bugs Go developers is the lack of a proper debugger. Builds are ridiculously fast and easy, but sometimes it would be nice to just set a breakpoint and step through that endless if chain or print a bunch of values without recompiling ten times....
May 07, 2015 10:06 AM
It is no secret that we at CloudFlare love Go. We use it, and we use it a LOT. There are many things to love about Go, but what I personally find appealing is the ability to write assembly code!...
March 25, 2015 4:23 PM
Here's a small Go gotcha that it's easy to fall into when using goroutines and closures. Here's a simple program that prints out the numbers 0 to 9....
September 15, 2014 2:08 PM
At CloudFlare, We use Go for a variety of services and applications. In this blog post, We're going to take a deep dive into some of the technical intricacies of Go....
August 27, 2014 3:56 PM
Go's "object-orientation" approach is through interfaces. Interfaces provide a way of specifying the behavior expected of an object, but rather than saying what an object itself can do, they specify what's expected of an object....
August 19, 2014 4:32 AM
Are you familiar with the Go programming language and looking for a job in San Francisco or London? Then think about applying to CloudFlare. We're looking for people with experience writing Go in both locations....
April 01, 2014 1:19 AM
A cornerstone of CloudFlare's infrastructure is our ability to serve DNS requests quickly and handle DNS attacks. To do both those things we wrote our own authoritative DNS server called RRDNS in Go. ...
March 05, 2014 12:00 AM
Some interesting changes related to timekeeping in the upcoming Go 1.3 release inspired us to take a closer look at how Go programs keep time with the help of the Linux kernel. Timekeeping is a complex topic and determining the current time isn’t as simple as it might seem at fir...
November 11, 2013 1:00 AM
Almost two years ago CloudFlare started working with Go. What started as an experiment on one network and concurrency heavy project has turned into full, production use of Go for multiple services....
August 24, 2013 1:46 AM
This blog post is very old now. You probably don't want to use the techniques described here. GO'S sync.Pool is a better way to go....
March 07, 2013 4:45 PM
We've mentioned before that we're using Go internally for projects such as Railgun (and a new DNS server and SSL infrastructure amongst other things). ...
November 18, 2012 12:35 AM
It's no secret that CloudFlare has adopted Go for some production systems; we've written about our use of Go in the past. But over time it's become clear to us that Go is an important language for the sort of high-performance, highly-concurrent software we have to write....
July 03, 2012 3:21 PM
The other day I blogged here about our new Railgun software that speeds up the back haul between CloudFlare data centers and our clients' servers. At CloudFlare we're using a number of different languages depending on the task....
