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resque-scheduler

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Avatar for Fumiaki MATSUSHIMA Fumiaki MATSUSHIMA
November 30, 2016
Programming
200
0

 resque-scheduler

Shinjuku.rb #43 発表資料
https://shinjukurb.connpass.com/event/44524/

Avatar for Fumiaki MATSUSHIMA

Fumiaki MATSUSHIMA

November 30, 2016

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Transcript

  1. (株)永和システムマネジメント @mtsmfm 松島 史秋 resque-scheduler

  2. 松島 史秋 GitHub, Twitter @mtsmfm

  3. ポケモン S/M まっちまー フレコ 1907-9185-9222

  4. None

  5. resque- scheduler

  6. https://github.com/resque/resque-scheduler

  7. 大きく2つの 機能

  8. - Delay - Schedule

  9. - Delay - 10分後に実行 - Schedule - cron

  10. resque 単体だと できない

  11. ActiveJob

  12. http://edgeguides.rubyonrails.org/active_job_basics.html#enqueue-the-job

  13. ActiveJob が やってくれたり してないかな

  14. Emoji provided free by Emoji One

  15. https://github.com/mtsmfm/ resque-scheduler-example

  16. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque- scheduler.rb#L4

  17. 挙動が違う

  18. https://github.com/jmettraux/rufus-scheduler/blob/master/lib/rufus- scheduler.rb

  19. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler/tasks.rb#L17-L18

  20. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler/cli.rb#L117

  21. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler.rb#L59-L70

  22. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler/locking.rb#L65-L67

  23. Lock

  24. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler/locking.rb#L3-L50

  25. - master プロセスが落ちたときに複数回 enqueue されないための機構 - Redis の SETNX を使っている

    - Delayed job は SETNX で単純な十分 - Scheduled job (cron っぽい方) は頻繁に master が変わると、マシンの時間がずれて いる場合に厳しい - (デフォルトだと) 3 分ごとに lock をとる - 2 回走ってもいいときや時間の同期がきっち りされているなら短くするとよい

  26. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler.rb#L59-L70

  27. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler.rb#L181-L190

  28. Schedule job は?

  29. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler/locking.rb#L3-L50

  30. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler/locking.rb#L28-L30

  31. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler.rb#L49-L53

  32. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler.rb#L89-L104

  33. https://github.com/resque/resque-scheduler/blob/v4.3.0/lib/resque/ scheduler.rb#L124-L163

  34. 学び

  35. - 概要のわかる ドキュメント大事 - resque-scheduler は 多重実行されるくらいなら job が失われた方がいいという方 針

    - Lock 機構難しい