New zine: HTTP: Learn your browser's language!
Hello! I’ve released a new zine! It’s called “HTTP: Learn your browsers language!” You can get it for $12 at https://wizardzines.com/zines/http. If you buy it, you’ll get a PDF that you can either read on your computer or print out. Here’s the cover and table of contents: why http? I got the idea for this zine from talking to Marco Rogers – he mentioned that he thought that new web developers / mo
Diving into HDFS
Yesterday I wanted to start learning about how HDFS (the Hadoop Distributed File System) works internally. I knew that It’s distributed, so one file may be stored across many different machines There’s a namenode, which keeps track of where all the files are stored There are data nodes, which contain the actual file data But I wasn’t quite sure how to get started! I knew how to navigate the filesy
Why you should understand (a little) about TCP
This isn’t about understanding everything about TCP or reading through TCP/IP Illustrated. It’s about how a little bit of TCP knowledge is essential. Here’s why. When I was at the Recurse Center, I wrote a TCP stack in Python (and wrote about what happens if you write a TCP stack in Python). This was a fun learning experience, and I thought that was all. A year later, at work, someone mentioned on
How gzip uses Huffman coding
I wrote a blog post quite a while ago called gzip + poetry = awesome where I talked about how the gzip compression program uses the LZ77 algorithm to identify repetitions in a piece of text. In case you don’t know what LZ77 is (I sure didn’t), here’s the video from that post that gives you an example of gzip identifying repetitions in a poem! I thought this was a great demonstration, but it’s only
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Sendfile (a system call for web developers to know about!)
How does SQLite work? Part 2: btrees! (or: disk seeks are slow don't do them!)
