inkel

# OpenVZ lower memory utilization, according to
# http://wiki.openvz.org/UBC_systemwide_configuration#.E2.80.9CLow_memory.E2.80.9D_.28x86_32_specific.29
#

# AWK script to calculate lower memory utilization
lowmem() {
    awk '$1 ~ /kmemsize|tcprcvbuf|tcpsndbuf|dgramrcvbuf|othersockbuf/ { M+=$2 } END { print M  / (0.4 * 832 * 1024 * 1024 ) }' $*
}

# Reading user bean counters, low mem usage is: 0.137789

inkel

<?php
function fib($n) {
  return ($n > 1) ? fib($n - 2) + fib($n - 1) : $n;
}

echo fib(30);

inkel

# coding: utf-8
require 'sinatra'
set server: 'thin', connections: []

get '/' do
  halt erb(:login) unless params[:user]
  erb :chat, locals: { user: params[:user].gsub(/\W/, '') }
end

get '/stream', provides: 'text/event-stream' do

inkel

_gs_ps1() {
    [[ -z $GS_NAME ]] || echo "[$GS_NAME] "
}

export PS1="\n\[\033[01;32m\]\w \[\033[1;33m\]\$(_gs_ps1)\[\033[01;31m\]\$(__git_ps1 \"(%s) \")\[\033[01;36m\]>>\[\033[00m\] "
export PS1="\[\033[G\]$PS1"

inkel

module Protest
  class Reports::TimedTest < Report
    include Utils::Summaries
    include Utils::ColorfulOutput

    attr_reader :stream
    attr_reader :slowest
    attr_reader :max_time

    def initialize(stream=STDOUT)

inkel

.arrow
  background: asset_path('/images/arrow_small_white.png') no-repeat 14px center

inkel

#!/usr/bin/env ruby
param = ARGV.first

class Fixnum

  def is_cachipulis?
    length = self.to_s.length
    digits = self.to_s.split('').map(&:to_i)

    return false if digits.inject(&:+) != length

inkel

Hay un montón de cambios para hacer, cosas por mejorar, etc, pero básicamente anda :)

inkel

• http://blog.getspool.com/2011/11/29/fast-easy-realtime-metrics-using-redis-bitmaps/
• https://github.com/eric/metriks
• http://geek.michaelgrace.org/2011/09/how-to-install-graphite-on-ubuntu/
• http://unwiredcouch.com/2012/09/15/getting-started-with-monitoring.html
• https://github.com/ripienaar/gdash
• https://github.com/paulasmuth/fnordmetric
• http://railscasts.com/episodes/378-fnordmetric
• http://bost.ocks.org/mike/
• https://github.com/mbostock/d3
• http://www.confreaks.com/videos/655-rubyconf2011-big-data-enterprisy-analytics-app-and-ruby

inkel

check process redis-server
    with pidfile "/var/run/redis.pid"
    start program = "/etc/init.d/redis-server start"
    stop program = "/etc/init.d/redis-server stop"
    if 2 restarts within 3 cycles then timeout
    if totalmem > 100 Mb then alert
    if children > 255 for 5 cycles then stop
    if cpu usage > 95% for 3 cycles then restart
    if failed host 127.0.0.1 port 6379 then restart
    if 5 restarts within 5 cycles then timeout