Bruno brunoadacosta

Prune Resque Workers

There is an issue related to running Resque on Heroku and Resque's ability to clean it's state information for workers. This is mostly a cosmetic issue however we got to a point where the Resque Dashboard would timeout because it was trying to display hundreds of workers it thought were sitll running.

This is a heavy handed approach to cleaning up. We are finding any worker that was stared longer than a day ago and manually calling the unregister method. Be advised this will throw DirtyExit errors.

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

	cd ~
	sudo apt-get update
	sudo apt-get install openjdk-7-jre-headless -y


	### Check http://www.elasticsearch.org/download/ for latest version of ElasticSearch and replace wget link below

	# NEW WAY / EASY WAY
	wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.9.deb
	sudo dpkg -i elasticsearch-0.90.9.deb

	#don't send the nginx version number in error pages and Server header
	server_tokens off;

	# config to enable HSTS(HTTP Strict Transport Security) https://developer.mozilla.org/en-US/docs/Security/HTTP_Strict_Transport_Security
	# to avoid ssl stripping https://en.wikipedia.org/wiki/SSL_stripping#SSL_stripping
	add_header Strict-Transport-Security "max-age=31536000; includeSubdomains;";

	# config to don't allow the browser to render the page inside an frame or iframe
	# and avoid clickjacking http://en.wikipedia.org/wiki/Clickjacking
	# if you need to allow [i]frames, you can use SAMEORIGIN or even set an uri with ALLOW-FROM uri

	#!/usr/bin/env ruby
	# Remove all gems EXCEPT defaults :)

	`gem list -d`.split(/\n\n^(?=\w)/).each do \|data\|
	match = data.match(/(?<name>([^\s]+)) \((?<versions>.*)\)/)
	name = match[:name]
	versions = match[:versions].split(', ')

	if match = data.match(/^.\(([\d\.]),? ?default\): .*$/)
	next if match[1].empty? # it's the only version if this match is empty

	=Navigating=
	visit('/projects')
	visit(post_comments_path(post))

	=Clicking links and buttons=
	click_link('id-of-link')
	click_link('Link Text')
	click_button('Save')
	click('Link Text') # Click either a link or a button
	click('Button Value')

	Generates random hash
	openssl rand -hex 40


	Generates encryption of string
	openssl passwd -crypt maroto

	SELECT table_schema "Data Base Name", sum( data_length + index_length ) / 1024 / 1024 "Data Base Size in MB"
	FROM information_schema.TABLES GROUP BY table_schema ;