Introduction to Resque

社内勉強会での発表に使ったスライドです。
GitHub で使われているジョブキューシステムの Resque について、簡単に説明しています。

1. Introduction to
Resque
Nov. 20, 2009 (Fri.)
Feedforce, Inc.
[email protected]

2. Resque
GitHub wÌ¿«¬å¢ïÅ rg;©á”
Ruby pî÷
´ãÒ‹ Ruby
JobObj.perform(*args)
Ô»Õ”µt Redis ›>;
git://github.com/defunkt/resque.git
ÞÇ»æï¬; WEB žÓ曉

3. Redis
Key-Value Store w°
http://code.google.com/p/redis/
ANSI C pî÷
POSIX ³µÂÜ Ípwˆ^›²
ìQ—ô—žÄÛ¿«—String, List, Set
ôSs‰—èÓæ­”³ãï—sr
Ý ïÔ»Õ”µq`o‹b;Dó

4. Redis
$telnet localhost 6379
SET keyname 3
bar
+OK
GET keyname
$3
bar

5. Redis
http://w.koshigoe.jp/study/

6. GitHub wAE
ìQ
4;¤´ãÒw¬Ý
4;¤´ãÒwË ý
»¬
ŒS
ôs push/pop
딧”w Ý6(run/fin)
æ`h´ãÒw¬Ý
딧”w 4ƒ
fat, old, too long
ì$s딧”
æ`h´ãÒxfw‡‡
6‰zrL`sM

7. \•sœi
žÄÛ¿«tO(1)p push/pop
ô
‘s`t ïµÄ”çpV”
ôTpV” Ruby «å žïÄ
Ú™wÈ»›¨òpV”
T:§¢ï»›–Q”
ìQ
Úµ»—µè”ÒwèÓæ­”³ãï
É¿Ä딫

8. Resque + Redis
A. Resis
©á”wðJ› Redis tÚd”
딧”wðJt ¯:›po”
D¹Qz ôTQz Ý6¹

9. Resque UeZÛOÄ
´ãÒwîæ
딧”—´ãÒ›¹b” WEB  ï»Ñ£”µ
tQówhŠw  fork ÞÃç
¦õDós曌’d”Ì¿«¤ïÅ
Hoptoad qT
„TzRedis wÍë”›¬d

10. DEMO
$ sudo gem install redis redis-namespace yajl-ruby \
--source=http://gemcutter.org
$ sudo gem install sinatra
$ git clone git://github.com/defunkt/resque.git
$ cd resque/examples/demo
$ rackup config.ru
$ open http://localhost:9292/

11. DEMO
$ VERBOSE=true QUEUE=default rake resque:work

12. DEMO
$ VVERBOSE=true QUEUE=default rake resque:work

13. DEMO
$ open http://localhost:9292/resque/

14. ´ãҁ
class Archive
@queue = :file_serve
def self.perform(repo_id, branch = 'master')
repo = Repository.find(repo_id)
repo.create_archive(branch)
end
end

15. ©á”t´ãÒ›
class Repository
def async_create_archive(branch)
Resque.enqueue(Archive, self.id, branch)
end
end

16. ´ãÒ› “ Z`o
klass, args = Resque.reserve(:file_serve)
klass.perform(*args) if klass.respond_to? :perform

17. 딧”Iˆ
$ cd app_root
$ QUEUE=file_serve rake resque:work

18. ´ãÒw¾:x JSON
{
'class': 'Archive',
'args': [ 44, 'masterbrew' ]
}

19. ´ãÒwæ›èŒ
´ãÒU«Ž›C\^dh’
é¬tGå`
Resque::Failure Þ´á”çtI^•”
æx Redis TwÌ¿«¤ïÅtI^•”
Resque x Hoptoad ›±Ù”Ä`oM”
http://www.hoptoadapp.com/pages/home

20. Resque vs DelayedJob
rj’TU ×t•oM”qMOépxsM
›Q›úr`z;Mt ao¬Rb‚V

21. Resque ›¬‚V
ó:w©á”UžA
:‹t‘”ŒSxÆA
Ruby ¦Ò´£«Äw‡‡¾:tIbžAUsM
‡ ×tŠGs©á”›{O
?UIVoM”T›¬Ý`hM
XwæÁŸ ‚›²q`oM”
Redis ›·¿Äž¿ÓpV”
RAM U –^bWsM

22. DelayedJob ›¬‚V
:‹t‘”ŒS›·‰
–Ô‡ ×tXw´ãÒ›îæb”˜ZpsM
©á”U –^XzbYtíX
XwæÁŸ ‚›²q`sM
ot?p‹©á”td[ˆhM
Redis w·¿Äž¿Ó›l‡sM

23. ?q?
?lh?xsMZ?rz??????U?"
GitHub qMO(x$t G?s)?wUK?
Ruby ???swp(??w)q ?tÛ??M
Redis xAÏ‘M>U`oM”(?s`)
jlqiZ Ä`X → http://w.koshigoe.jp/study/
Resque
Redis

24. ]ZÌzK“UqO]_M‡`h{