Fisl - Deployment

Deployment de Rails Fabio Akita www.akitaonrails.com

Deployment de Rails

+7000 pessoas no WWR

+7000 pessoas no WWR +3 anos

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“Rails Escala?”

“Sim, Rails Escala!”

Rails 1.0 em 2005

Rails 1.0 em 2005 MySQL

Rails 1.0 em 2005 MySQL LightTPD + Fast CGI

Database/Storage

Database/Storage “Rails Stack”

Database/Storage “Rails Stack” HTTP Server/Load Balancer

Database

MySQL PostgreSQL Oracle/SQL Server/Informix/Sybase ...

MySQL PostgreSQL Oracle/SQL Server/Informix/Sybase ... MEMCACHED

Rails App Database

MEMCACHED Rails App Database

MEMCACHED Rails App Database Slave

class Post < ActiveRecord::Base end

class Post < ActiveRecord::Base acts_as_cached after_destroy :expire_cache end

http://errtheblog.com/posts/57-kickin-ass-w-cachefu

HTTP Servers

Maduro Apache 2.x Mais “pesado”

Maduro Apache 2.x Mais “pesado” Nginx 0.5 Rápido

Maduro Apache 2.x Mais “pesado” Nginx 0.5 Rápido Rápido Litespeed 3.x Comercial

FastCGI Instável

FastCGI Instável SAPI Rápido

FastCGI Instável SAPI Rápido HTTP Estável Proxy Reverso

FastCGI Instável SAPI Rápido HTTP Estável Proxy Reverso mod_rails recém-chegado

HTTP “Rails Stack” Server

FCGI HTTP “Rails Stack” Server

FCGI HTTP SAPI “Rails Stack” Server

FCGI HTTP SAPI “Rails Stack” Server HTTP

“Rails Stack” FCGI HTTP SAPI “Rails Stack” Server HTTP “Rails Stack”

Rails Stack

“Rails Stack”

“Rails Stack” Ruby VM (MRI)

“Rails Stack” RubyGems Ruby VM (MRI)

Ruby on Rails “Rails Stack” RubyGems Ruby VM (MRI)

Ruby on Rails Mongrel “Rails Stack” RubyGems Ruby VM (MRI)

Rails, ActiveSupport, ActiveRecord, ActionPack

Rails, ActiveSupport, ActiveRecord, ActionPack ActionMailer, ActiveResource, ActionWS

Rails, ActiveSupport, ActiveRecord, ActionPack ActionMailer, ActiveResource, ActionWS Capistrano, Net-SSH, Net-SFTP

Rails, ActiveSupport, ActiveRecord, ActionPack ActionMailer, ActiveResource, ActionWS Capistrano, Net-SSH, Net-SFTP Mongrel, Mongrel Cluster

Rails, ActiveSupport, ActiveRecord, ActionPack ActionMailer, ActiveResource, ActionWS Capistrano, Net-SSH, Net-SFTP Mongrel, Mongrel Cluster Rmagick, Mini Magick, Image Science

Rails, ActiveSupport, ActiveRecord, ActionPack ActionMailer, ActiveResource, ActionWS Capistrano, Net-SSH, Net-SFTP Mongrel, Mongrel Cluster Rmagick, Mini Magick, Image Science Rspec, ZenTest

Mongrel Multi-threaded

Mongrel Multi-threaded Rails Non-concurrent

Mongrel

Ruby on Rails Mongrel

Outras Gems Ruby on Rails Mongrel

Sua Applicação Outras Gems Ruby on Rails Mongrel

“Rails Stack”

Mongrel Cluster

Mongrel Cluster Load Balancer

Monit God

objetos Ruby VM

objetos objetos Ruby VM

GC objetos objetos Ruby VM

objetos objetos Ruby VM

Memória Livre não desalocada objetos objetos Ruby VM

Monit Rails App

Rails App Monit

Monit Rails App

Load Balancer

Rails + Mongrel Rails + Mongrel Rails + Mongrel Load Balancer Rails + Mongrel Rails + Mongrel Rails + Mongrel

Capistrano

capify . cap setup cap deploy cap rollback

capify . set :application, quot;mey_aplicativoquot; set :repository, quot;git://server.com/projeto.gitquot; set :deploy_to, quot;/var/www/#{application}quot; cap setup default_run_options[:pty] = true set :repository, quot;git@github.com:user/rails-app.gitquot; set :scm, quot;gitquot; set :scm_passphrase, quot;p00pquot; set :user, quot;deployerquot; cap deploy set :branch, quot;origin/masterquot; set :deploy_via, :remote_cache set :git_shallow_clone, 1 set :git_enable_submodules, 1 cap rollback

capify . cap setup cap deploy cap rollback

Desktop

SCM (Git) Desktop

SCM Staging (Git) Cap Desktop

SCM Staging (Git) Cap Desktop Production Cap

SCM Desktop (Git)

SCM Desktop (Git) Production Production Production Production Cap Cap Cap Cap Production Production Production Production Cap Cap Cap Cap

http://capify.org/

Quantos Mongrels?

Apache Bench • Blog Demo • Post resource • (1 query, 20 rows)

Apache Bench

Apache Bench ab -n 1000 http://127.0.0.1:3000/posts

Apache Bench ab -n 1000 http://127.0.0.1:3000/posts 1 conexão 1000 requisições

Apache Bench ab -n 5000 -c 10 http://127.0.0.1:3000/posts

Apache Bench ab -n 5000 -c 10 http://127.0.0.1:3000/posts 10 conexões 5000 requisições

Nginx - 3 Mongrels

Nginx - 3 Mongrels req/s (mean) 1000 requests 1 conexão 5000 requests 10 conexões

Nginx - 3 Mongrels req/s (mean) Hello World 1000 requests 414.56 1 conexão 5000 requests 701.88 10 conexões

Nginx - 3 Mongrels Posts req/s (mean) Hello World (puro) 1000 requests 414.56 24.44 1 conexão 5000 requests 701.88 39.31 10 conexões

Nginx - 3 Mongrels Posts Posts req/s (mean) Hello World (page (puro) cache) 1000 requests 414.56 24.44 1587.31 1 conexão 5000 requests 701.88 39.31 2220.24 10 conexões

Nginx - 3 Mongrels Posts Posts Posts req/s (mean) Hello World (page (action (puro) cache) cache) 1000 requests 414.56 24.44 1587.31 106.29 1 conexão 5000 requests 701.88 39.31 2220.24 96.81 10 conexões

Memória

Memória 1 Mongrel, ~30 Mb 1 Rails vazio

Memória 1 Mongrel, ~30 Mb 1 Rails vazio 1 Mongrel, ~70Mb 1 Mephisto

http://www.scribd.com/doc/97641/ JHoffmanRailsConfMay2007

Estratégias

Rails Cache (Page/Action/Fragment)

Rails Cache (Page/Action/Fragment) MEMCACHED

Rails Cache (Page/Action/Fragment) MEMCACHED Asynchronous Processes (BackgrounDRb, cronjobs, etc)

class PostsController < Application def action # código lento end end # http://www.site.com/posts

class PostsController < Application def action PERIGO! # código lento end end # http://www.site.com/posts

class PostsController < Application def action MiddleMan.new_worker( :class => :heavy) end end class Heavy < BackgrounDRb::Worker::RailsBase def do_work(options) # código lento end end

Tempo de Execução Rails Request

Tempo de Execução Rails Request CACHE

Tempo de Execução Rails Request

Tempo de Execução Rails Request Async

Tempo de Execução Rails Request Outros

920 pageviews/dia ~30 req/s pico USD 370/mês

Deployment comum

Nginx Cap

MySQL Nginx Cap

MySQL Nginx Memcached Cap

MySQL Nginx Memcached Cap Git

Desaﬁos

Performance Green Threads x Native Thread + GIL Memory Management C Extensions Interoperability

Instalação

Instalação aptitude install apache2 apache2mpmprefork ruby1.8 dev apache2preforkdev gem install passenger ./passengerinstallapache2module cd /var/www ; rails .

LoadModule passenger_module /opt/local/lib/ruby/gems/1.8/gems/ passenger-1.0.1/ext/apache2/mod_passenger.so RailsSpawnServer /opt/local/lib/ruby/gems/1.8/gems/passenger-1.0.1/bin/ passenger-spawn-server RailsRuby /opt/local/bin/ruby <Directory quot;/Users/akitaonrails/rails/blog/publicquot;> Order allow,deny Allow from all </Directory> <VirtualHost *:80> ServerName localhost DocumentRoot /Users/akitaonrails/rails/blog/public </VirtualHost>

Benchmarks Mongrel Thin Passenger

Obrigado! www.akitaonrails.com

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Fisl - Deployment

by Fabio Akita on Nov 29, 2008

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