rails + serverengineで お手軽daemon

1. rails + serverengineͰ
 ͓खܰdaemon Akira Miki Repro Inc. shinjuku.rb #29@metaps Sep 30, 2015
2. Akira Miki Repro @treetreeslight
4. ղੳ͔Βղܾ·ͰαΫοͱ
5. About job
6. ReproͰ࢖͍ͬͯΔjob܈ serverengine sidekiq AWS lambda ؂ࢹͯ͠ൃՐ੍ޚ͍ͨ͠
   ฒྻ਺Λ੍ݶ͍ͨ͠ ฒྻ਺Λ੍ݶ͠ͳ͍
   ΨϯΨϯॲཧ͍ͨ͠ 4ͳͲͷ"84πʔϧ܈ ͱγʔϜϨεͳ࿈ܞͯ͠ ΨγΨγॲཧ͍ͨ͠
7. ͲΜͳ͜ͱʹ࢖ͬͯΔͷʁ serverengine sidekiq AWS lambda w ಈըͷม׵
   w ղੳσʔλΩϟογϡ
   w ఆظܾࡁ
   w QVTI༧໿ͷ؂ࢹ
   w *O"QQର৅ऀͷߋ৽
   FUDʜ w ϝʔϧΛૹΔ
   w ղੳσʔλΛૹΔ
   w ഑৴σʔλͷ࡞੒
   FUDʜ w 1VTIૹΔ
   FUDʜ
8. ͲΜͳ͜ͱʹ࢖ͬͯΔͷʁ serverengine sidekiq AWS lambda w ಈըͷม׵
   w ղੳσʔλΩϟογϡ
   w ఆظܾࡁ
   w QVTI༧໿ͷ؂ࢹ
   w *O"QQର৅ऀͷߋ৽
   FUDʜ w ϝʔϧΛૹΔ
   w ղੳσʔλΛૹΔ
   w ഑৴σʔλͷ࡞੒
   FUDʜ w 1VTIૹΔ
   FUDʜ
9. બఆܦҢΛϓϩτλΠϓ࣌୅ͷ
 ʮஏ͔ͣ͠ʙʙʙ͍ʯ
 ࣦഊஊ΋౿·͑ͯ
10. ϓϩτλΠϓͩ͠ͱΓ͋͑ͣ cron Rake script SQS SDK ̍෼୯ҐͩΑ͒
11. ͋ΕʁϝϞϦᷓΕͯͶʁ
12. ͦΓΌrails෼requireͯ͠rakeୟͱ
 ϝϞϦΊͬͪΌ৯͏ΑͶ!!
 
 ϓϩτλΠϓͱ͸͍͑ࡶ͗ͨ͢!!!
13. ϓϩτλΠϓͱ͸͍͑
 ͪΐͬͱ͸ؾΛ࢖͓͔ͬͯ͘ cron SQS SDK Server Ӆ͠URL
14. CPU΍Δ͖ͩͯ͠Δɾɾɾʁ
15. ffmpegͬͯݶք·Ͱ
 CPU࢖͏͔ΒͶʂ 
 ϓϩτλΠϓͱ͸͍͑ࡶ͗ͨ͢!!!
16. ͪΌΜͱ͢Δظ • railsͷmodelࢿ࢈Λ࢖͍·Θ͠ • ffmpeg͕CPUΛ৯͍ਚ͘͢ͷͰฒྻ਺͸੍ݶͭͭ͠ • Rails requireͷϝϞϦͷΦʔόʔϔου͸࠷খݶʹ • ࣗલͰdaemonϥούʔॻ͍ͯ΋ྑ͍͚Ͳɺγάφ ϧ੍ޚܥͱ͔ॻ͘ͷΊΜͲ͍ <- Ұ൪ίϨ
17. serverengine
18. serverengine ࢖͍΍͢!!! SQS SDK serverengine long poling w΍Δ͜ͱʹ߹ΘͤͯXPSLFS਺ௐ੔ͭͭ͠
    wTVQFSWJTFS
    
    ਌
    
    ࢠͱ͍͏ૉఢߏ੒
    wϩά·ΘΓ΍γάφϧʹΑΔϓϩηε੍ޚ·ͰόονϦ
19. ؾΛ͚ͭͨ͜ͱ
20. Exception def cycle invoke end 
 def invoke( *arguments ) execute( *arguments ) rescue => error report_exception(error) end def execute( *arguments ) raise NotImplementedError end def report_exception(error) # logging, rollbar, newrelic ... end • handle͠ͳ͕Βࢭ·Βͣલਐ
21. Avoid memory leak • ʢrubyͷઃఆͰղܾͰ͖Δͱࢥ͏͚Ͳʣfragmentation͕ ཷ·ΔͷͰఆظతʹڧ੍GC class worker … def run begin GC.stop cycle ensure GC.start end rescue Exception => error report_exception error end … end
22. Zombi process • long polingதʹdeployΛ࿈ଓ͢Δͱɺzombi͕Ͱ͖Δ serverengine serverengine.pid Kill Kill ̍ճ໨ 2ճ໨ start start pollingத serverengine.pid Override
23. Memory Usage • serverengine͸process modelͳͷͰɺrailsશ෦৐͚ͬͯ Δͱϓϩηε෼ϝϞϦΛ͍ͬͺ͍৯΂Δɻ worker worker server supervisor
24. ͜Ε؂ࢹܥ͡Όͳ͍͠ sidekiqͰ΋Α͔ͬͨΜ͡Όʁ
25. Ͱͨ͠ serverengine sidekiq AWS lambda w ಈըͷม׵
    w ղੳσʔλΩϟογϡ
    w ఆظܾࡁ
    w QVTI༧໿ͷ؂ࢹ
    w *O"QQͷλʔήοτߋ ৽
    w ಈըͷม׵
    w ϝʔϧΛૹΔ
    w ղੳσʔλΛૹΔ
    w ഑৴σʔλͷ࡞੒
    FUDʜ w 1VTIૹΔ
    FUDʜ
26. ·ͱΊ • serverengine࢖͏ͱdaemon͕α ΫοͱͰ͖Δ