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rails + serverengineで お手軽daemon
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threetreeslight
October 02, 2015
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rails + serverengineで お手軽daemon
threetreeslight
October 02, 2015
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Transcript
rails + serverengineͰ ͓खܰdaemon Akira Miki Repro Inc. shinjuku.rb #29@metaps
Sep 30, 2015
Akira Miki Repro @treetreeslight
None
ղੳ͔Βղܾ·ͰαΫοͱ
About job
ReproͰ͍ͬͯΔjob܈ serverengine sidekiq AWS lambda ࢹͯ͠ൃՐ੍ޚ͍ͨ͠ ฒྻΛ੍ݶ͍ͨ͠ ฒྻΛ੍ݶ͠ͳ͍ ΨϯΨϯॲཧ͍ͨ͠ 4ͳͲͷ"84πʔϧ܈
ͱγʔϜϨεͳ࿈ܞͯ͠ ΨγΨγॲཧ͍ͨ͠
ͲΜͳ͜ͱʹͬͯΔͷʁ serverengine sidekiq AWS lambda w ಈըͷม w ղੳσʔλΩϟογϡ w
ఆظܾࡁ w QVTI༧ͷࢹ w *O"QQରऀͷߋ৽ FUDʜ w ϝʔϧΛૹΔ w ղੳσʔλΛૹΔ w ৴σʔλͷ࡞ FUDʜ w 1VTIૹΔ FUDʜ
ͲΜͳ͜ͱʹͬͯΔͷʁ serverengine sidekiq AWS lambda w ಈըͷม w ղੳσʔλΩϟογϡ w
ఆظܾࡁ w QVTI༧ͷࢹ w *O"QQରऀͷߋ৽ FUDʜ w ϝʔϧΛૹΔ w ղੳσʔλΛૹΔ w ৴σʔλͷ࡞ FUDʜ w 1VTIૹΔ FUDʜ
બఆܦҢΛϓϩτλΠϓ࣌ͷ ʮஏ͔ͣ͠ʙʙʙ͍ʯ ࣦഊஊ౿·͑ͯ
ϓϩτλΠϓͩ͠ͱΓ͋͑ͣ cron Rake script SQS SDK ̍୯ҐͩΑ͒
͋ΕʁϝϞϦᷓΕͯͶʁ
ͦΓΌrailsrequireͯ͠rakeୟͱ ϝϞϦΊͬͪΌ৯͏ΑͶ!! ϓϩτλΠϓͱ͍͑ࡶ͗ͨ͢!!!
ϓϩτλΠϓͱ͍͑ ͪΐͬͱؾΛ͓͔ͬͯ͘ cron SQS SDK Server Ӆ͠URL
CPUΔ͖ͩͯ͠Δɾɾɾʁ
ffmpegͬͯݶք·Ͱ CPU͏͔ΒͶʂ ϓϩτλΠϓͱ͍͑ࡶ͗ͨ͢!!!
ͪΌΜͱ͢Δظ • railsͷmodelࢿ࢈Λ͍·Θ͠ • ffmpeg͕CPUΛ৯͍ਚ͘͢ͷͰฒྻ੍ݶͭͭ͠ • Rails requireͷϝϞϦͷΦʔόʔϔου࠷খݶʹ • ࣗલͰdaemonϥούʔॻ͍ͯྑ͍͚Ͳɺγάφ
ϧ੍ޚܥͱ͔ॻ͘ͷΊΜͲ͍ <- Ұ൪ίϨ
serverengine
serverengine ͍͢!!! SQS SDK serverengine long poling wΔ͜ͱʹ߹ΘͤͯXPSLFSௐͭͭ͠ wTVQFSWJTFSࢠͱ͍͏ૉఢߏ wϩά·ΘΓγάφϧʹΑΔϓϩηε੍ޚ·ͰόονϦ
ؾΛ͚ͭͨ͜ͱ
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
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
Zombi process • long polingதʹdeployΛ࿈ଓ͢Δͱɺzombi͕Ͱ͖Δ serverengine serverengine.pid Kill Kill ̍ճ
2ճ start start pollingத serverengine.pid Override
Memory Usage • serverengineprocess modelͳͷͰɺrailsશ෦͚ͬͯ ΔͱϓϩηεϝϞϦΛ͍ͬͺ͍৯Δɻ worker worker server supervisor
͜Εࢹܥ͡Όͳ͍͠ sidekiqͰΑ͔ͬͨΜ͡Όʁ
Ͱͨ͠ serverengine sidekiq AWS lambda w ಈըͷม w ղੳσʔλΩϟογϡ w
ఆظܾࡁ w QVTI༧ͷࢹ w *O"QQͷλʔήοτߋ ৽ w ಈըͷม w ϝʔϧΛૹΔ w ղੳσʔλΛૹΔ w ৴σʔλͷ࡞ FUDʜ w 1VTIૹΔ FUDʜ
·ͱΊ • serverengine͏ͱdaemon͕α ΫοͱͰ͖Δ