Post on 08-May-2015
description
RubyA apresentação já vai começar ...
AkitaOnRails.com
@AkitaOnRails
www.slideshare.net/akitaonrails
boss@akitaonrails.com
http://dl.dropbox.com/u/1732133/dicas-de-desenvolvimento-web-com-rails.zip
Entendendo a WebDicas sobre Desenvolvimento Web com Ruby
Fabio Akita
Recapitulando ...
Rails não Escala
Rails não Escala(TM)
Blaine Cook
http://www.akitaonrails.com/2008/6/17/chatting-with-blaine-cook-twitter
Para colocar as coisas em perspectiva, o Friendster foi
escrito em Java e eles mudaram para PHP. MySpace foi escrito
em ColdFusion e eles mudaram para ASP.NET.
Blaine Cook
http://www.akitaonrails.com/2008/6/17/chatting-with-blaine-cook-twitter
Para colocar as coisas em perspectiva, o Friendster foi
escrito em Java e eles mudaram para PHP. MySpace foi escrito
em ColdFusion e eles mudaram para ASP.NET.
Blaine Cook
http://www.akitaonrails.com/2008/6/17/chatting-with-blaine-cook-twitter
Quando as pessoas caem em problemas de escalabilidade, normalmente acham que a
linguagem é o problema, mas eu acho que isso raramente é a
realidade.
http://www.computerworld.com.au/article/268003/ruby_rails_rolls_into_enterprise?fp=16&fpid=1
“O The New York Times usou Ruby on Rails para agregar, analizar e mostrar os resultados das
eleições em quase tempo real em um de seus sites mais acessados de todos os tempos.”
http://www.computerworld.com.au/article/268003/ruby_rails_rolls_into_enterprise?fp=16&fpid=1
“O The New York Times usou Ruby on Rails para agregar, analizar e mostrar os resultados das
eleições em quase tempo real em um de seus sites mais acessados de todos os tempos.”
Web Server
MySQL
Browser
Web Server
MySQL
Browser
Varnish/HAProxy
Web Server
MySQL
Browser
Varnish/HAProxy
Memcached
Web Server
MySQL
Browser
Varnish/HAProxy
Memcached
CouchDB/MongoDB
Ruby é Lento
Ruby é Lento(TM)
Existem mentiras, mentiras malditas e
estatísticas.
Existem mentiras, mentiras malditas e
estatísticas.
Existem mentiras, mentiras malditas e
estatísticas.
x mais lento que C++
0 32.5 65 97.5 130
Python 2
Ruby 1.9
JRuby
Perl
Python 3
PHP
Ruby 1.8
x mais lento que C++
Homepage: 331 ms
Homepage: 331 ms
Total: 5.45 s
Performance!=
Escalabilidade
Sempre se Lembre
Poderíamos contratar um Macaco Treinadopara fazer seu Trabalho!
Exemplo
6Técnicas
Menos Requisições
Mini!que CSS e Javascript
Juicerhttp://github.com/cjohansen/juicer/
gem install juicer
script/plugin install git://github.com/ktheory/juicer-rails.git
gem install juicer
script/plugin install git://github.com/ktheory/juicer-rails.git
juicer install yuicompressor
juicer install jslint
juicer install closure_compiler
juicer install yuicompressor
juicer install jslint
juicer install closure_compiler
juicer install yuicompressor
juicer install jslint
juicer install closure_compiler
<%= juiced_tag '/stylesheets/application.css' %> <%= yield(:head) %>
</head><body>
... <%= juiced_tag '/javascripts/application.js' %>
</body>
/app/views/layouts/application.html.erb
<%= juiced_tag '/stylesheets/application.css' %> <%= yield(:head) %>
</head><body>
... <%= juiced_tag '/javascripts/application.js' %>
</body>
/app/views/layouts/application.html.erb
@import url("reset.css");@import url("base.css");@import url("fonts.css");
...
/* @depends jquery-1.4.min.js @depends jquery.edit_in_place.js @depends jqueryamail.js*/
...
/public/stylesheets/application.css
/public/javascripts/application.js
@import url("reset.css");@import url("base.css");@import url("fonts.css");
...
/* @depends jquery-1.4.min.js @depends jquery.edit_in_place.js @depends jqueryamail.js*/
...
/public/stylesheets/application.css
/public/javascripts/application.js
juicer merge public/stylesheets/application.css
public/stylesheets/application.min.css
juicer merge -i public/javascripts/application.js
public/javascripts/application.min.js
juicer merge public/stylesheets/application.css
public/stylesheets/application.min.css
juicer merge -i public/javascripts/application.js
public/javascripts/application.min.js
juicer merge public/stylesheets/application.css
public/stylesheets/application.min.css
juicer merge -i public/javascripts/application.js
public/javascripts/application.min.js
juicer merge public/stylesheets/application.css
public/stylesheets/application.min.css
juicer merge -i public/javascripts/application.js
public/javascripts/application.min.js
DEVELOPMENT
PRODUCTION
Asset HostsNavegadores abrem poucas conexões
simultâneas por domínio
def gallery gallery_path = File.join(Rails.root, "public/images/gallery/")
@images = Dir.glob(gallery_path + "*").map{ |f| f.gsub(gallery_path, "") }
end
/app/controllers/hello_controller.rb
def gallery gallery_path = File.join(Rails.root, "public/images/gallery/")
@images = Dir.glob(gallery_path + "*").map{ |f| f.gsub(gallery_path, "") }
end
/app/controllers/hello_controller.rb
/app/views/hello/gallery.html.erb
<% title "Gallery" %>
<% @images.each do |image| -%> <%= image_tag "gallery/#{image}" %>
<% end -%>
def gallery gallery_path = File.join(Rails.root, "public/images/gallery/")
@images = Dir.glob(gallery_path + "*").map{ |f| f.gsub(gallery_path, "") }
end
/app/controllers/hello_controller.rb
/app/views/hello/gallery.html.erb
<% title "Gallery" %>
<% @images.each do |image| -%> <%= image_tag "gallery/#{image}" %>
<% end -%>
DEVELOPMENT
DEVELOPMENT
/con!g/environments/production.rb
config.action_controller.asset_host = Proc.new do |source, request| protocol = if request.ssl?
request.headers["USER_AGENT"] =~ /(Safari)/ ? "http" : "https" else
"http" end
"#{protocol}://asset#{rand(6) + 1}.akitaonrails.local:3000"end
/con!g/environments/production.rb
config.action_controller.asset_host = Proc.new do |source, request| protocol = if request.ssl?
request.headers["USER_AGENT"] =~ /(Safari)/ ? "http" : "https" else
"http" end
"#{protocol}://asset#{rand(6) + 1}.akitaonrails.local:3000"end
### Host Database## localhost is used to configure the loopback interface# when the system is booting. Do not change this entry.##127.0.0.1 localhost255.255.255.255 broadcasthost::1 localhost fe80::1%lo0 localhost127.0.0.1 asset1.akitaonrails.local asset2.akitaonrails.local asset3.akitaonrails.local asset4.akitaonrails.local asset5.akitaonrails.local asset6.akitaonrails.local www.akitaonrails.local
/etc/hosts
PRODUCTION
PRODUCTION
Javascript embaixo!
<head> <title><%= h(yield(:title) || "Untitled") %></title> <%= stylesheet_link_tag 'application' %> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/CFInstall.min.js" type="text/javascript"></script> <%= yield(:head) %></head><body>...
/app/views/layouts/application.html.erb
<head> <title><%= h(yield(:title) || "Untitled") %></title> <%= stylesheet_link_tag 'application' %> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/CFInstall.min.js" type="text/javascript"></script> <%= yield(:head) %></head><body>...
/app/views/layouts/application.html.erb
... <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/CFInstall.min.js" type="text/javascript"></script> <script type="text/javascript"> // meu javascript customizado ... </script> </body></html>
/app/views/layouts/application.html.erb
... <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/CFInstall.min.js" type="text/javascript"></script> <script type="text/javascript"> // meu javascript customizado ... </script> </body></html>
/app/views/layouts/application.html.erb
Gzip
a2enmod de"ate
editar/etc/apache2/mods-available/de"ate.conf
a2enmod de"ate
editar/etc/apache2/mods-available/de"ate.conf
<IfModule mod_deflate.c> AddOutputFilterByType DEFLATE text/plain AddOutputFilterByType DEFLATE text/html AddOutputFilterByType DEFLATE text/xml AddOutputFilterByType DEFLATE text/css AddOutputFilterByType DEFLATE image/svg+xml AddOutputFilterByType DEFLATE image/x-icon AddOutputFilterByType DEFLATE application/xml AddOutputFilterByType DEFLATE application/xhtml+xml AddOutputFilterByType DEFLATE application/rss+xml AddOutputFilterByType DEFLATE application/javascript AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-httpd-php AddOutputFilterByType DEFLATE application/x-httpd-fastphp AddOutputFilterByType DEFLATE application/x-httpd-eruby
DeflateCompressionLevel 9
# Netscape 4.X has some problems BrowserMatch ^Mozilla/4 gzip-only-text/html
# Netscape 4.06-4.08 have some more problems BrowserMatch ^Mozilla/4\.0[678] no-gzip
# MSIE masquerades as Netscape, but it is fine BrowserMatch \bMSIE !no-gzip !gzip-only-text/html</IfModule>
/etc/apache2/mods-available/de"ate.conf
Cabeçalhos de Expiração
a2enmod expires
editar/etc/apache2/mods-available/expires.conf
a2enmod expires
editar/etc/apache2/mods-available/expires.conf
<IfModule mod_expires.c> ExpiresByType image/x-icon "access plus 1 year" ExpiresByType image/png "access plus 1 year" ExpiresByType image/jpg "access plus 1 year" ExpiresByType image/gif "access plus 1 year" ExpiresByType image/jpeg "access plus 1 year" ExpiresByType application/pdf "access plus 1 year" ExpiresByType audio/x-wav "access plus 1 year" ExpiresByType audio/mpeg "access plus 1 year" ExpiresByType video/mpeg "access plus 1 year" ExpiresByType video/mp4 "access plus 1 year" ExpiresByType video/quicktime "access plus 1 year" ExpiresByType video/x-ms-wmv "access plus 1 year" ExpiresByType application/x-shockwave-flash "access 1 month" ExpiresByType text/css "access plus 1 year" ExpiresByType text/javascript "access plus 1 year"</IfModule>
/etc/apache2/mods-available/expires.conf
Cache Busters
<%= stylesheet_link_tag 'application' %>
<%= javascript_include_tag 'application' %>
<%= image_tag "logo.png" %>
/app/views/layouts/application.html.erb
<link href="/stylesheets/application.css?1264345891" media="screen" rel="stylesheet" type="text/css" />
<script src="/javascripts/application.js?1264345058"
type="text/javascript"></script>
<img alt="Logo" src="/images/logo.png?1268943058" />
/app/views/layouts/application.html.erb
<link href="/stylesheets/application.css?1264345891" media="screen" rel="stylesheet" type="text/css" />
<script src="/javascripts/application.js?1264345058"
type="text/javascript"></script>
<img alt="Logo" src="/images/logo.png?1268943058" />
/app/views/layouts/application.html.erb
Use CDNs
<script src="/javascripts/jquery-1.4.min.js" type="text/javascript"></script><script src="/javascripts/jquery-ui-1.7.2.min.js" type="text/javascript"></script><script src="/javascripts/swfobject-2.2.js" type="text/javascript"></script><script src="/javascripts/CFInstall-1.0.2.min.js" type="text/javascript"></script>
/app/views/layouts/application.html.erb
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script><script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script><script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script><script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/CFInstall.min.js" type="text/javascript"></script>
/app/views/layouts/application.html.erb
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js" type="text/javascript"></script><script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script><script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js" type="text/javascript"></script><script src="http://ajax.googleapis.com/ajax/libs/chrome-frame/1.0.2/CFInstall.min.js" type="text/javascript"></script>
/app/views/layouts/application.html.erb
Search
select * from ... where ... like “%...%”
select * from ... where ... like “%...%”
or ... like “%...%”or ... like “%...%”or ... like “%...%”or ... like “%...%”
Open Source Enterprise Search Platform
Baseado no famoso Lucene
Full Text Search, com relevância
Indexa documentos (Word, PDF, etc)
Interface REST
Roda em containers de Servlet (Tomcat)
Open Source Enterprise Search Platform
Baseado no famoso Lucene
Full Text Search, com relevância
Indexa documentos (Word, PDF, etc)
Interface REST
Roda em containers de Servlet (Tomcat)
Open Source Enterprise Search Platform
Baseado no famoso Lucene
Full Text Search, com relevância
Indexa documentos (Word, PDF, etc)
Interface REST
Roda em containers de Servlet (Tomcat)
Open Source Enterprise Search Platform
Baseado no famoso Lucene
Full Text Search, com relevância
Indexa documentos (Word, PDF, etc)
Interface REST
Roda em containers de Servlet (Tomcat)
Open Source Enterprise Search Platform
Baseado no famoso Lucene
Full Text Search, com relevância
Indexa documentos (Word, PDF, etc)
Interface REST
Roda em containers de Servlet (Tomcat)
Open Source Enterprise Search Platform
Baseado no famoso Lucene
Full Text Search, com relevância
Indexa documentos (Word, PDF, etc)
Interface REST
Roda em containers de Servlet (Tomcat)
SOLR
Sphinx
Xapian
SOLR
Sphinx
Xapian
SOLR
Sphinx
Xapian
select * from ... where ... like “%...%”
or ... like “%...%”or ... like “%...%”or ... like “%...%”or ... like “%...%”
Tarefas Assíncronas
Requisição
ProcessamentoRequisição
Resposta
ProcessamentoRequisição
Crontab
RMagick
RedisWorkers
Resque-Web
ProcessamentoRequisição
291 ms
Resposta
Processamento
Requisição
32 ms
Worker
Resque Redis
Delayed Job SQL
Warren RabbitMQ
Whenever Cron Jobs
Resque Redis
Delayed Job SQL
Warren RabbitMQ
Whenever Cron Jobs
Resque Redis
Delayed Job SQL
Warren RabbitMQ
Whenever Cron Jobs
Resque Redis
Delayed Job SQL
Warren RabbitMQ
Whenever Cron Jobs
Imagens
Relatórios
Web Services
Transações
Imagens
Relatórios
Web Services
Transações
Imagens
Relatórios
Web Services
Transações
Imagens
Relatórios
Web Services
Transações
Aprendendo Mais
RAILS LABS
RAILSCASTS.com
caelum.com.br
egenial.com.br
Entenda os browsers
Entenda HTTP
Arquiteturas
Mundo Assíncrono
Mundo não Relacional
Entenda os browsers
Entenda HTTP
Arquiteturas
Mundo Assíncrono
Mundo não Relacional
Entenda os browsers
Entenda HTTP
Arquiteturas
Mundo Assíncrono
Mundo não Relacional
Entenda os browsers
Entenda HTTP
Arquiteturas
Mundo Assíncrono
Mundo não Relacional
Entenda os browsers
Entenda HTTP
Arquiteturas
Mundo Assíncrono
Mundo não Relacional
Thx!www.slideshare.net/akitaonrails
boss@akitaonrails.com
http://dl.dropbox.com/u/1732133/dicas-de-desenvolvimento-web-com-rails.zip