ibtaylor

{-# LANGUAGE BangPatterns #-}
--module Data.Huffman where
module Main where

import Data.Char (intToDigit)
import Data.List (insertBy, foldl', sortBy)
import Data.Maybe (fromJust)
import Data.Ord (comparing)
import qualified Data.Binary.BitPut        as P
import qualified Data.Binary.Strict.BitGet as G

tonyc

Using strace and lsof to debug blocked processes

You can use strace on a specific pid to figure out what a specific process is doing, e.g.:

strace -fp <pid>

You might see something like:

select(9, [3 5 8], [], [], {0, 999999}) = 0 (Timeout)

hrldcpr

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

datagrok

This article is now published on my website: Prefer Subshells for Context.

piscisaureus

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

afair

Hey! I saw this has been indexed by the search engines. It is a first draft of a post I ended up publishing on my blog at: Scaling PostgreSQL With Pgpool and PgBouncer

Thanks for stopping by!

PostgreSQL and Pgpool Architecture

lucasdavila

# to execute this gist, run the line bellow in terminal
\curl -L https://raw.github.com/gist/3875946/install_source_code_pro.sh | sh

chen206

#!/bin/bash
#
# Install Postgres 9.2 on a clean Ubuntu 12.04

"""
LC_ALL issue
comment out the AcceptEnv LANG LC_* line in the remote /etc/ssh/sshd_config file.
sudo apt-get install language-pack-en-base
sudo dpkg-reconfigure locales
comment out the SendEnv LANG LC_* line in the local /etc/ssh/ssh_config file.

cankav

# -*- coding: utf-8 -*-
import sys
import os
import time
import codecs
import logging
import subprocess
import tempfile
from functools import wraps
PYSIDE = False

ragingwind

Backend Architectures

Twitter

ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats

• Introduce Gizzard of Twitter - 트위터의 새로운 분산 관리 라이브러리 Gizzard를 소개합니다.
• The Architecture Twitter Uses to Deal with 150M Active Users, 300K QPS, a 22 MB/S Firehose, and Send Tweets in Under 5 Seconds
• Scaling Twitter: Making Twitter 10000 Percent Faster