- https://ferd.ca/a-distributed-systems-reading-list.html
- http://the-paper-trail.org/blog/distributed-systems-theory-for-the-distributed-systems-engineer/
- https://github.com/palvaro/CMPS290S-Winter16/blob/master/readings.md
- http://muratbuffalo.blogspot.com/2015/12/my-distributed-systems-seminars-reading.html
- http://christophermeiklejohn.com/distributed/systems/2013/07/12/readings-in-distributed-systems.html
- http://michaelrbernste.in/2013/11/06/distributed-systems-archaeology-works-cited.html
- http://rxin.github.io/db-readings/
- http://research.microsoft.com/en-us/um/people/lamport/pubs/pubs.html
- http://pdos.csail.mit.edu/dsrg/papers/
- http://scalingsystems.com/2011/09/07/reading-list-for-distributed-systems/
set.seed(2) | |
x <- 1:100 | |
y <- 20 + 3 * x | |
e <- rnorm(100, 0, 60) | |
y <- 20 + 3 * x + e | |
plot(x,y) | |
yx.lm <- lm(y ~ x) | |
lines(x, predict(yx.lm), col="red") |
# settings/base.py | |
import os | |
# Normally you should not import ANYTHING from Django directly | |
# into your settings, but ImproperlyConfigured is an exception. | |
from django.core.exceptions import ImproperlyConfigured | |
def get_env_variable(var_name): | |
""" Get the environment variable or return exception """ | |
try: | |
return os.environ[var_name] |
// Just before switching jobs: | |
// Add one of these. | |
// Preferably into the same commit where you do a large merge. | |
// | |
// This started as a tweet with a joke of "C++ pro-tip: #define private public", | |
// and then it quickly escalated into more and more evil suggestions. | |
// I've tried to capture interesting suggestions here. | |
// | |
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_, | |
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant, |
Magic words:
psql -U postgres
Some interesting flags (to see all, use -h
or --help
depending on your psql version):
-E
: will describe the underlaying queries of the\
commands (cool for learning!)-l
: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.
http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL
""" Trains an agent with (stochastic) Policy Gradients on Pong. Uses OpenAI Gym. """ | |
import numpy as np | |
import cPickle as pickle | |
import gym | |
# hyperparameters | |
H = 200 # number of hidden layer neurons | |
batch_size = 10 # every how many episodes to do a param update? | |
learning_rate = 1e-4 | |
gamma = 0.99 # discount factor for reward |
#! /bin/sh | |
test_run() | |
{ | |
if [ "`./truncated-graph-traversal \"$1\"`" = "$2" ]; then | |
echo "$2" | |
else | |
./truncated-graph-traversal "$1" >&2 | |
echo Expected "$2" >&2 | |
exit 1 |