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The mess cannot go into the program, it piles up around the programmer.

Sam Pullara spullara

The mess cannot go into the program, it piles up around the programmer.
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thoughtpolice / foundationdb-beta1-getting-started.template
Created Feb 7, 2019
Ancient CloudFormation FoundationDB template, discovered by completing an ancient trial
View foundationdb-beta1-getting-started.template
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "FoundationDB CloudFormation Test. **WARNING** This template creates one or more Amazon EC2 instances. You will be billed for the AWS resources used if you create a stack from this template.",
"Parameters" : {
"InstanceType" : {
"Description" : "EC2 instance type",
"Type" : "String",
"Default" : "m1.large",

Freezer cgroup FTW

In a terminal start a server.

$ python -m SimpleHTTPServer 8000

In another terminal set up the cgroups freezer.


Scaling your API with rate limiters

The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.

In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.

Request rate limiter

This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.

dain / Directions for creating PEM files
Last active Feb 13, 2020
Create Java KeyStore from standard PEM encoded private key and certificate chain files
View Directions for creating PEM files
# To regenerate the test key and certificates
# Generate an RSA private key and convert it to PKCS8 wraped in PEM
openssl genrsa 2048 | openssl pkcs8 -topk8 -inform pem -outform pem -nocrypt -out rsa.key
# Generate a certificate signing request with the private key
openssl req -new -key rsa.key -out rsa.csr
# Sign request with private key
openssl x509 -req -days 10000 -in rsa.csr -signkey rsa.key -out rsa.crt

A slightly updated version of this doc is here on my website.

Why I Like Go

I visited with PagerDuty yesterday for a little Friday beer and pizza. While there I got started talking about Go. I was asked by Alex, their CEO, why I liked it. Several other people have asked me the same question recently, so I figured it was worth posting.


The first 1/2 of Go's concurrency story. Lightweight, concurrent function execution. You can spawn tons of these if needed and the Go runtime multiplexes them onto the configured number of CPUs/Threads as needed. They start with a super small stack that can grow (and shrink) via dynamic allocation (and freeing). They are as simple as go f(x), where f() is a function.



  • Infix?
  • Whitespace-aware, but not required (implicit {})


  • Static single assignment
juliangruber / gist:3846423
Created Oct 6, 2012
Distributed Datastore
View gist:3846423

Distributed Datastore

Building a distributed database/api on an eventually consistent distribution mechanism like scuttlebutt.

Data model

There are users and (possibly anonymous) posts with permalinks that only take strings/buffers.

Think of information you...

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