cgvarela

if($.browser.msie && parseInt($.browser.version) <= 8){ // just for IE8 and lower
    $(document).on('focusout', windowBlurred);
    $(document).on('focusin', windowFocused);
}else if($.browser.safari && Modernizr.touch && !navigator.userAgent.match(/Android/i) && !navigator.userAgent.match(/CriOS/i)){ // just for ipad / iphone / ipod (Safari mobile, not Android default browsers nor Chrome Mobile that is)
    $(window).on('pagehide', windowBlurred);
    $(window).on('pageshow', windowFocused);
}else{ // the rest
    console.log('chrome');
    $(window).on('blur', windowBlurred);
    $(window).on('focus', windowFocused);

cgvarela

cgvarela

How to compile Mesos on your new Raspberry Pi 2 (which is amazing with 4 cores and 6x performance). Follows on from experiments in compiling for OS X

sudo apt-get install maven libsasl2-dev libapr1-dev libsvn-dev libcurl4-openssl-dev python-dev python-boto

export JAVA_HOME="/usr/lib/jvm/jdk-8-oracle-arm-vfp-hflt"
export PATH=$JAVA_HOME/bin:$PATH

http://likemagicappears.com/projects/raspberry-pi-cluster/mesos-on-raspbian/

cgvarela

References from my talk 'Without Resilience, Nothing Else Matters'

• Drift into Failure
• How Complex Systems Fail
• Antifragile: Things That Gain from Disorder
• Leverage Points: Places to Intervene in a System
• Going Solid: A Model of System Dynamics and Consequences for Patient Safety
• Resilience in Complex Adaptive Systems: Operating at the Edge of Failure
• Puppies! Now that I’ve got your attention, Complexity Theory
• [Towards Resilient Architectures: Biology

cgvarela

import sys
import time
import random

from crate.client import connect
from threading import Thread
from Queue import Queue
from uuid import uuid1

host = sys.argv[1]

cgvarela

-- Techcrunch Demo Queries

-- count all steps records
SELECT count(*) FROM steps;

-- count all steps
SELECT sum(num_steps) FROM steps;

-- count all steps for a specific user
SELECT sum(num_steps) AS steps_for_user FROM steps WHERE username = 'gosinski';

cgvarela

#!/bin/bash

mkfs.ext4 /dev/sdb
mkfs.ext4 /dev/sdc

mkdir /data
mkdir /data/data{1,2}

mount /dev/sdb /data/data1
mount /dev/sdc /data/data2

cgvarela

clf; clear; syms x y

eq1 = ((x/7)^2*sqrt(abs(abs(x)-3)/(abs(x)-3))+(y/3)^2*sqrt(abs(y+3/7*sqrt(33))/(y+3/7*sqrt(33)))-1);
eq2 = (abs(x/2)-((3*sqrt(33)-7)/112)*x^2-3+sqrt(1-(abs(abs(x)-2)-1)^2)-y);
eq3 = (9*sqrt(abs((abs(x)-1)*(abs(x)-.75))/((1-abs(x))*(abs(x)-.75)))-8*abs(x)-y);
eq4 = (3*abs(x)+.75*sqrt(abs((abs(x)-.75)*(abs(x)-.5))/((.75-abs(x))*(abs(x)-.5)))-y);
eq5 = (2.25*sqrt(abs((x-.5)*(x+.5))/((.5-x)*(.5+x)))-y);
eq6 = (6*sqrt(10)/7+(1.5-.5*abs(x))*sqrt(abs(abs(x)-1)/(abs(x)-1))-(6*sqrt(10)/14)*sqrt(4-(abs(x)-1)^2)-y);

eqf = '((x/7)^2*sqrt(abs(abs(x)-3)/(abs(x)-3))+(y/3)^2*sqrt(abs(y+(3*sqrt(33))/7)/(y+(3*sqrt(33))/7))-1)*(abs(x/2)-((3*sqrt(33)-7)/112)*x^2-3+sqrt(1-(abs(abs(x)-2)-1)^2)-y)*(9*sqrt(abs((abs(x)-1)*(abs(x)-3/4))/((1-abs(x))*(abs(x)-3/4)))-8*abs(x)-y)*(3*abs(x)+3/4*sqrt(abs((abs(x)-3/4)*(abs(x)-1/2))/((3/4-abs(x))*(abs(x)-1/2)))-y)*(9/4*sqrt(abs((x-1/2)*(x + 1/2))/((1/2-x)*(1/2+x)))-y)*((6*sqrt(10))/7+(3/2-abs(x)/2)*sqrt(abs(abs(x)-1)/(abs(x)-1))-(6*sqrt(10))/14*sqrt(4-(abs(x)-1)^2)-y)=0'

cgvarela

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

cgvarela

package main

import (
	"fmt"
	"os"
	"os/exec"
	"syscall"
)

func main() {