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!
From ‘Legacy' to ‘Edge'
2014 edition
!
Hiroshi SHIBATA
@hsbt
OedoRubyKaigi04
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SHIBATA Hiroshi(@hsbt)
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asakusa.rb
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ruby-lang.org
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Rails Girls in Japan
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Ruby Committer
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No content
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ϛυϧΣΞͷΞοϓάϨʔυ
ࣾ։ൃج൫ͷߏங
౷ܭج൫ͷߏங
+409ͷӡ༻උ
HJUIVC
ηΩϡϦςΟࠪ
ίʔυϨϏϡʔ
ςετج൫ͷߏங
ΞΫηεղੳج൫ͷߏங
։ൃϓϩηε
৽ਓڭҭ
ݪߘࣥච
ΧϯϑΝϨϯεൃද
044։ൃ αʔόʔߏཧͷ৽
ϦʔϯελʔτΞοϓ
+FOLJOT
3VCZ3BJMT
3%#.4
ٕज़ج൫νʔϜ
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http://30d.jp
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from 2007/5
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380,000 users
230,000,000 photos
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Our Rails app
46 models
5000 lines in controllers
400 lines in routes.rb
1:1.3 code to test ratio
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system architecture
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application server
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storage server
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job server
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transaction server
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storage is over
450 TB
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database size
is over
250 GB
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Development
Culture
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จࣈ
github workflow
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IRC
github issue
costomer’s
contact
nagios
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DevOps
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4 deploy/day
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No content
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How to migrate
edge rails
from
legacy rails?
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Ruby 1.8.6
Rails 2.0.2
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Ruby 1.8.6
Rails 2.0.2
Ruby 2.1.1
Rails 4.1.0 new!
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Why?
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No content
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Ruby on Rails
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Ruby
1.8.6 1.8.7 1.9.3 2.0.0 2.1
Rails
2.0/2.1
2.3
3.0
3.2
4.0
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Ruby
1.8.6 1.8.7 1.9.3 2.0.0 2.1
Rails
2.0/2.1
2.3
3.0
3.2
4.0
Slow
Fast
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Ruby
1.8.6 1.8.7 1.9.3 2.0.0 2.1
Rails
2.0/2.1
2.3
3.0
3.2
4.0
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Ruby
1.8.6 1.8.7 1.9.3 2.0.0 2.1
Rails
2.0/2.1
2.3
3.0
3.2
4.0
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Ruby
1.8.6 1.8.7 1.9.3 2.0.0 2.1
Rails
2.0/2.1
2.3
3.0
3.2
4.0
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Rails 2.0
Rails 2.3
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Rails 2.0
Rails 2.3
hotfix A
migration A
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Rails 2.0
Rails 2.3
hotfix A
migration A
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Rails 2.0
Rails 2.3
hotfix A
migration A
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จࣈ
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Zero
Downtime
Deploy
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cookpad/kage
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Kage (kah-geh) is an HTTP shadow
proxy server that sits between
clients and your server(s) to
enable "shadow requests".
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the basic of kage
real request
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No content
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_ਓਓ ਓਓ__ਓਓ ਓਓ_!
> ಥવͷαʔόʔ࠶ىಈ
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Ruby
1.8.6 1.8.7 1.9.3 2.0.0 2.1
Rails
2.0/2.1
2.3
3.0
3.2
4.0
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rails 2.3 with bundler
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source 'https://rubygems.org'!
!
gem 'rails', '~> 2.3.18'!
gem 'rake', '~> 0.9.2'!
gem 'rdoc'!
gem 'rake-confirm'!
!
gem 'mysql'!
gem "mysql_retry_lost_connection"!
gem 'acts_as_paranoid', :github => 'paperboy-30days/acts_as_paranoid'!
gem 'passenger', '~> 3.0'!
gem 'memcache-client', :require => 'memcache'!
gem 'system_timer'!
gem 'yajl-ruby', :require => 'yajl'!
gem 'will_paginate', '~> 2.3'!
gem 'mail'!
!
gem 'sass'!
gem 'compass-rails'!
!
gem 'osaipo_client', :git => '[email protected]:paperboy-all/
osaipo_client.git', :branch => 'legacy'!
gem 'jugem_client', :git => '[email protected]:paperboy-all/
jugem_client.git'!
gem 'ppb_footer', :github => 'paperboy-all/ppb_footer'!
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require "./config/environment"!
!
use Rails::Rack::LogTailer!
use Rails::Rack::Static!
run ActionController::Dispatcher.new
rack with rails 2.3
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30days-front
can’t use
hyphen
can’t use
number
can’t convert
!
application.rb...
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Reduce
customer frustration.
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app1
app2
backgroundrb to dj
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จࣈ
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Ruby
1.8.6 1.8.7 1.9.3 2.0.0 2.1
Rails
2.0/2.1
2.3
3.0
3.2
4.0
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Use trunk everyday.
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จࣈ
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จࣈ
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Use modern architecture
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app1
app2
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kyoto tycoon is slower
than mysql…
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No content
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1.8 to 2.0
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จࣈ
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2.0 to 2.1
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CPU Usage(%)
0
25
50
75
100
49
69
2.0 2.1
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Resp. time(ms)
0
50
100
150
200
250
189
221
2.0 2.1
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memory usage(giga byte)
0
1
2
3
4
3.8
3.2
2.0 2.1
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จࣈ
https://www.ruby-lang.org/en/news/2014/03/10/regression-of-hash-reject-in-ruby-2-1-1/
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Ruby
1.8.6 1.8.7 1.9.3 2.0.0 2.1
Rails
2.0/2.1
2.3
3.0
3.2
4.0
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จࣈ
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Resp. time(ms)
0
60
120
180
240
300
287
189
3.2 4.0
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Ruby
1.9.3 2.0.0 2.1 2.2
Rails
3.0
3.2 ?
4.0 ?
4.1 ?
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Ruby
1.9.3 2.0.0 2.1 2.2
Rails
3.0
3.2 ?
4.0 ?
4.1 ?
New!!
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จࣈ
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1. Flash structure changes
2. Mutator methods called on Relation
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จࣈ
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Resp. time(ms)
0
60
120
180
240
300
266
287
4.0 4.1
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Ruby
1.9.3 2.0.0 2.1 2.2
Rails
3.0
3.2 ?
4.0 ?
4.1 ?
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class Bar!
def bar(foo = foo())!
foo!
end!
!
def buzz(foo = foo)!
foo!
end!
!
def foo!
:buzz!
end!
end!
!
p Bar.new.bar!
p Bar.new.buzz
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% ruby -v r45272.rb!
ruby 2.2.0dev (2014-04-13 trunk 45580) [x86_64-darwin13]!
:buzz!
nil!
!
% ruby -v r45272.rb!
ruby 2.1.2p80 (2014-03-01 revision 45231) [x86_64-darwin13.0]!
:buzz!
:buzz
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จࣈ
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conclusion
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2. fix gem
4. fix Ruby
3. fix Rails
1. fix your code