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Distributed Tracing with OpenCensus at Wantedly, Inc.
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Yuichi Saito
April 03, 2019
Technology
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Distributed Tracing with OpenCensus at Wantedly, Inc.
OpenCensus meetup vol.1
https://opencensus.connpass.com/event/123885/
Yuichi Saito
April 03, 2019
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Transcript
©2018 Wantedly, Inc. Distributed Tracing with OpenCensus at Wantedly, Inc.
OpenCensus meetup vol.1 03.Apr.2019 - @munisystem
©2018 Wantedly, Inc. 0QFO$FOTVTͷಋೖഎܠ 8BOUFEMZ *ODʹ͓͚ΔࢄτϨʔγϯά ݱঢ়ͷ՝
·ͱΊ Agenda
©2018 Wantedly, Inc. !NVOJTZTUFN:VJDIJ4BJUP *OGSBTUSVDUVSF5FBNBU8BOUFEMZ *OD
©2018 Wantedly, Inc. 0QFO$FOTVTͷಋೖഎܠ
©2018 Wantedly, Inc. 8BOUFEMZʹ͓͚Δ.JDSPTFSWJDFTͷݱঢ় w 1PMZHMPU w 3VCZͱ(P͕ϝΠϯ w αʔϏεͷυϝΠϯʹΑͬͯ1ZUIPO/PEFɺ3VTU࠾༻
w .VMUJ$MPVE w "84 ,VCFSOFUFTPO&$ 3%4 &MBTUJDBDIF ʜ w ($1 #JH2VFSZ $MPVE%BUBTUPSF $MPVE1VC4VC ʜ
©2018 Wantedly, Inc. ͳͥ.JDSPTFSWJDFTΛ࠾༻ͨ͠ͷ͔ ͷ8BOUFEMZ1FPQMFͷ։ൃ͔Β.JDSPTFSWJDFTΛ࠾༻ w ࣌ϞϊϦγοΫͳ3BJMTΞϓϦέʔγϣϯ͕ݸଘࡏ w αʔϏεͷಛੑ্ɺ3BJMTͰ࣮ݱ͠ʹ͍͘ػೳΛ࣮ݱ͢Δඞཁ͕͋ͬͨ w
ฒྻԽɺػցֶश w ߴͳ։ൃͱϦϦʔεͷཁٻ w ϦϦʔεαΠΫϧͷ
©2018 Wantedly, Inc. ύϑΥʔϚϯεܭଌͷ͠͞ w 8BOUFEMZͰ"1.ͷج൫ͱͯ͠/FX3FMJDΛ࠾༻͍ͯͨ͠
©2018 Wantedly, Inc. ύϑΥʔϚϯεܭଌͷ͠͞ w 8BOUFEMZͰ"1.ͷج൫ͱͯ͠/FX3FMJDΛ࠾༻͍ͯͨ͠ w SVOUJNFϨϕϧͰͷϝτϦΫεͷऩू w -BUFODZ
4UBDLUSBDF ($IFBQTJ[F ʜ w .JDSPTFSWJDFTͰαʔϏεؒͷσʔλͷΓऔΓ͕ωοτϫʔΫӽ͠ʹߦΘΕΔ w ϦΫΤετઌͰͲΜͳॲཧ͕ߦΘΕ͍ͯΔͷ͔ΛஅͰ͖ͳ͍
©2018 Wantedly, Inc. ύϑΥʔϚϯεܭଌͷ͠͞ Receive A /api/products/1 timeline DB Access
Request B /api/reviews/1 #Ͱͳʹ͕ߦΘΕ͍ͯΔͷ͔"ͷ4UBDL5SBDF্͔ΒஅͰ͖ͳ͍
©2018 Wantedly, Inc. ύϑΥʔϚϯεܭଌͷ͠͞ w 8BOUFEMZͰ"1.ͷج൫ͱͯ͠/FX3FMJDΛ࠾༻͍ͯͨ͠ w SVOUJNFϨϕϧͰͷϝτϦΫεͷऩू w -BUFODZ
4UBDLUSBDF ($IFBQTJ[F ʜ w .JDSPTFSWJDFTͰαʔϏεؒͷσʔλͷΓऔΓ͕ωοτϫʔΫӽ͠ʹߦΘΕΔ w ϦΫΤετઌͰͲΜͳॲཧ͕ߦΘΕ͍ͯΔͷ͔ΛஅͰ͖ͳ͍ ࢄτϨʔγϯάͷಋೖ
©2018 Wantedly, Inc. ࢄτϨʔγϯά
©2018 Wantedly, Inc. ࢄτϨʔγϯάಋೖͷΞϓϩʔν ͬ͘͟Γಋೖํ๏௨ΓʹྨͰ͖Δ w ϕϯμʔ͕ఏڙ͢Δ-JCSBSZͷར༻ͱ࣮ʢྫ"NB[PO93BZ w 0QFO$FOTVT0QFO5SBDJOHʹද͢Δڞ௨Խ࣮
©2018 Wantedly, Inc. ٕज़બΛ͢Δͱ͖ʹߟ͑ͨ͜ͱ w όοΫΤϯυͷมߋ༰қੑͷ୲อ w ܗ͞ΕͨΤίγεςϜͷར༻͕Մೳ w 1PMZHMPUͳڥͰ͋Δ͜ͱΛҙࣝ͢Δͱɺ
গ͠ͰΤίγεςϜʹΕΔܗʹ͍ͨ͠ ڞ௨ԽϑϨʔϜϫʔΫͷ࠾༻
©2018 Wantedly, Inc. Կނ0QFO$FOTVTΛ࠾༻ͨ͠ͷ͔ w ͲͪΒ࣮ΛϕϯμʔΛ͢Δͱ͍͏తҰॹ w ࢄτϨʔγϯάҎ֎ͷར༻ՁΛߟ͑ͨ w 0QFO5SBDJOHࢄτϨʔγϯά͚ͩͰ͋Δͷʹର͠ɺ
0QFO$FOTVT0CTFSWBCJMJUZશൠʹϑΥʔΧε͍ͯ͠Δ w ΞϓϦέʔγϣϯͷϝτϦΫεͷऩूΛݟਾ͑ͨ w ΤίγεςϜͷͷݟࠐΈ w (PPHMF4UBDLESJWFSͰ0QFO$FOTVTͷར༻Λਪ͍ͯͨ͠
©2018 Wantedly, Inc. 8BOUFEMZ *ODʹ͓͚ΔࢄτϨʔγϯά
©2018 Wantedly, Inc. ࢄτϨʔγϯάͷόοΫΤϯυ w όοΫΤϯυʹ%BUBEPH"1.ͱ4UBDLESJWFS5SBDFΛ࠾༻ w %BUBEPH"1.͕ϝΠϯ w ͱͱ%BUBEPHΛར༻͍ͯͨ͠ͱ͍͏എܠ
w %BUBEPH"1.Ͱಛఆͷڥ͚ͩͯ͢ͷ5SBDFΛ͢ࣄ͕Ͱ͖ͳ͍ w ͜ΕΛ୲อ͢ΔͨΊʹ4UBDLESJWFS5SBDFͱซ༻͍ͯ͠Δ w কདྷతʹόοΫΤϯυΛ౷Ұͤ͞Δ
©2018 Wantedly, Inc. 4IBSFE-JCSBSZʹΑΔڞ௨Խ w ࣾʹϚΠΫϩαʔϏεʹඞཁͳϩδοΫΛ֤αʔϏεʹఏڙ͢ΔͨΊͷ ڞ௨Խ࣮͕ଘࡏ͍ͯͨ͠ w 5JNFPVU3FUSZ"VUIFOUJDBUPO-PHHJOH w
ࢄτϨʔγϯάͷ࣮͜Εʹแ͍ͤͯ͞Δ w 3VCZͱ(PͷΈͰఏڙ w 1ZUIPOͦͷଞͷݴޠϦΫΤετͷͰར༻͞ΕΔέʔε͕ଟ͍ w ߋʹ%#ͷSFBEXSJUF΄΅ແ͍ w VQTUSFBNͷϦΫΤετͷ4QBO͚ͩͰ͋Δఔஅ͕Մೳ
©2018 Wantedly, Inc. ར༻͍ͯ͠Δ-JCSBSZ w (Pʹؔͯ͠ެࣜͷͷΛར༻ w 3VCZGPSL IUUQTHJUIVCDPNXBOUFEMZPQFODFOTVTSVCZ Λར༻
w ࣌UPQMFWFMͷ4QBO͕ࢠ4QBOʹൖ͞Εͳ͍ͱ͍͏க໋తͳόά͕͋ͬͨ w 13Λૹ͕ͬͨɺϝϯςφෆࡏͰϦϦʔε͞Εͳ͍࠷ۙϚʔδ͞Εͨ w UPQMFWFM4QBOʹ"UUSJCVUFΛࠩ͠ࠐΉͨΊͷIPPLΛࣗ࡞͍ͯͯ͠ɺ ͦΕ͕·ͩຊମʹ13Λग़͍ͯ͠ͳ͍ w %BUBEPHͷ&YQPSUFSʹؔͯࣗ͠࡞ w IUUQTHJUIVCDPNNVOJTZTUFNPQFODFOTVTEBUBEPH
©2018 Wantedly, Inc. ϝλσʔλͷૠೖ w ݕࡧͷͨΊʹϝλσʔλ w ,VCFSOFUFTNFUBEBUB w 3FRVFTU*%
w 6TFS*% w %BUBEPH"1.ͷ࠷దԽͷͨΊͷϝλσʔλ
©2018 Wantedly, Inc. 3FRVFTU*%ͷൖ w 3FRVFTU*%ผαʔϏεʹൖ͍ͯ͠Δ w "DDFTT-PHHJOH w &SSPSUSBDLFS
)POFZCBEHFS
©2018 Wantedly, Inc. )551)FBEFS1SPQBHBUJPO w 5SBDF$POUFYUQSPQBHBUJPOGPSNBUΛ࠾༻ w 0QFO$FOTVTͷ༷Ͱ5SBDF$POUFYUͷؚ࣮͕·Ε͍ͯΔ w PQFODFOTVTSVCZ#͕·࣮ͩ͞Ε͍ͯͳ͍
©2018 Wantedly, Inc. 4BNQMJOH w ։ൃڥͯ͢ͷϦΫΤετͷॲཧΛτϨʔεͰ͖ΔΑ͏ʹɺ αϯϓϦϯάߦ͍ͬͯͳ͍ w 1SPEVDUJPOڥαʔϏεΤϯυϙΠϯτʹؔΘΒͣҰˋͰઃఆ w
ϦΫΤετ4QBOͷ͕ଟ͍ͨΊ w ΞϓϦέʔγϣϯଆͷQFSGPSNBODFJTTVF w όοΫΤϯυͷQSJDJOH
©2018 Wantedly, Inc. ($1Ͱͷར༻ w 4%,ଆͰ0QFO$FOTVT͕ରԠ͞Ε͍ͯΔ w ಛʹͳʹͤͣFDPTZTUFNʹΕΔ
©2018 Wantedly, Inc. ݱঢ়ͷ՝
©2018 Wantedly, Inc. όοΫΤϯυݻ༗ͷ࠷దԽͷ࣮ݱ w ༩͞Ε͍ͯΔ"UUSJCVUFʹΑͬͯόοΫΤϯυͷৼΔ͍͕มΘΔ w %BUBEPH"1.ͰTQBOUZQFͷͰαʔϏεͷΧςΰϥΠζ͕มΘΔ w UPQMFWFMͷ4QBOͰղܾ͢ΔͷͳΒ·͍͍ͩ
w SFEJTDMJFOUʹಛఆͷ"UUSJCVUFΛࠩ͠ࠐΉʹͲ͏͢Δ w SFEJTDMJFOUଆͰIPPLΛ༻ҙ͢Δ w NPOLFZQBUDIΛ͋ͯΔ
©2018 Wantedly, Inc. ΞϓϦέʔγϣϯίʔυͱϕϯμʔͷશͳ w &YQPSUFSίʔυʹґଘ w ϥΠϒϥϦͷΞοϓσʔτͷ͠͞ w 1PMZHMPUͱ&YQPSUFS࣮
w ओཁͳݴޠ͚࣮ͩ͢Δͷݱ࣮తͰͳ͍ w &YQPSUFSͷࣗ࡞ͱ͍͏બࢶ w ϕϯμʔଆͷػೳͷैͷίετ
©2018 Wantedly, Inc. 0QFO$FOTVT4FSWJDF https://github.com/census-instrumentation/opencensus-service/blob/master/images/opencensus-service-deployment-models.png
©2018 Wantedly, Inc. 0QFO$FOTVT4FSWJDF w ϕϯμʔͱΞϓϦέʔγϣϯͷશͳͷ࣮ݱ w "HFOUʜ5SBDF4UBUTͷऩूɺ$PMMFDUPSͷू w $PMMFDUPSʜҙͷόοΫΤϯυʹूͨ͠5SBDF4UBUTΛૹ৴
w ར w TBNQMJOHTUSBUFHZͷมߋϝλσʔλͷ༩Λ$PMMFDUPSଆͰ࣮ݱ w ϕϯμʔ(Pͷ࣮͚ͩ༻ҙ͢Εྑ͍
©2018 Wantedly, Inc. ·ͱΊ w 0QFO$FOTVTΛࢄτϨʔγϯάͰར༻͢ΔϝϦοτ w ϕϯμʔͱίʔυͷͷ࣮ݱ w ϩάϝτϦΫεͷऩूͷ֦ுੑ
w ΤίγεςϜͷେ͖͞ w 8BOUFEMZ *ODʹ͓͚ΔࢄτϨʔγϯά w 4IBSFE-JCSBSZʹΑΔ࣮ͷڞ௨Խ w ݕࡧͷͨΊͷϝλσʔλͷૹ৴