bfg

/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

spicycode

# 0 is too far from ` ;)
set -g base-index 1

# Automatically set window title
set-window-option -g automatic-rename on
set-option -g set-titles on

#set -g default-terminal screen-256color
set -g status-keys vi
set -g history-limit 10000

rubiojr

require 'fog'
require 'net/ssh'
require 'net/scp'


def upload_file(host, user, password, source, dest, print_progress = true)
  Net::SSH.start(host, user, :password => password) do |ssh|
    puts "Uploading file... (#{File.basename(source)})"
    ssh.scp.upload!(source, dest) do |ch, name, sent, total|
      if print_progress

ryanflorence

@events =

  events: {}

  on: (topic, handler, context = this) ->
    (@events[topic] or= []).push {handler, context}

  trigger: (topic, args...) ->
    return unless @events[topic]?
    handler.apply(context, args) for {handler, context} in @events[topic]

nijikokun

  var user = {
    validateCredentials: function (username, password) {
      return (
          (!(username += '') || username === '') ? { error: "No Username Given.", field: 'name' }
        : (!(username += '') || password === '') ? { error: "No Password Given.", field: 'pass' }
        : (username.length < 3)                  ? { error: "Username is less than 3 Characters.", field: 'name' }
        : (password.length < 4)                  ? { error: "Password is less than 4 Characters.", field: 'pass' }
        : (!/^([a-z0-9_-]+)$/i.test(username))   ? { error: "Username contains invalid characters.", field: 'name' }
        : false
      );

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

sturadnidge

# download latest libevent2 and tmux sources, and extract them somewhere
# (thx bluejedi for tip on latest tmux URL)
#
# at the time of writing:
# https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
# http://sourceforge.net/projects/tmux/files/latest/download?source=files
# 

# install deps
yum install gcc kernel-devel make ncurses-devel

DavidWittman

USE keystone
-- This needs to be set in the my.cnf to persist
SET GLOBAL event_scheduler = 1;
DELIMITER $$
CREATE EVENT tokenreaper
ON SCHEDULE EVERY 1 WEEK
DO BEGIN
    DELETE FROM `token` WHERE expires <= DATE_SUB(NOW(), INTERVAL 1 WEEK);
END $$
DELIMITER ;

lorin

# Use LVM for partitioning
d-i   partman-auto/method string lvm

# If one of the disks that are going to be automatically partitioned
# contains an old LVM configuration, the user will normally receive a
# warning. Preseed this away
d-i     partman-lvm/device_remove_lvm boolean true

# And the same goes for the confirmation to write the lvm partitions.
d-i     partman-lvm/confirm boolean true