Riak Training (introduction) トレーニング 1. 基本編

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 3JBLτϨʔχϯά جຊฤ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "HFOEB •  3JBL֓ཁ •  ίϯηϓτ •  2VFSZ • 
&SMBOHجૅ •  ΞʔΩςΫνϟ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 3JBLͱ͸ •  ଱ো֐ੑɿো֐࣌Ͱ΋͔ͳΒͣίϐʔΛݸ΋ͭ •  ֦ுੑɿεέʔϧΞ΢τɺϦχΞͳ༧ଌՄೳੑ •  ଎౓ɿϨΠςϯγॏࢹ • 
Մ༻ੑɿμ΢ϯλΠϜ΄΅ͳ͠ʢ"DU4CZͷ%#ͩͱ ௨ৗ͸ඵҎ্ʣ •  ,74ɿΩʔɾ஋ͷϖΞͰදݱͰ͖ΔσʔλϞσϧ ͕ಛ௃ͷσʔλϕʔε

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE σʔλϕʔεͱ͸ •  ;ͨͭͷٕज़ཁૉͷ૊Έ߹Θ͔ͤΒͳΔٕज़ •  ΫΤϦॲཧʢ2VFSZ1SPDFTTJOHʣ •  σʔλΛग़͠ೖΕ͢ΔͨΊͷΠϯλʔϑΣʔεͷ ࢓༷ͱ࣮૷
•  ୅දతͳΠϯλʔϑΣʔε͸42- •  τϥϯβΫγϣϯॲཧʢ5SBOTBDUJPO1SPDFTTJOHʣ •  σʔλΛ҆શʹग़͠ೖΕ͢ΔͨΊͷฒߦॲཧɾฒ ྻॲཧͷઃܭͱ࣮૷

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE l/P42-z •  /PU0OMZ42- •  ࣈٛͲ͓ΓͰ͋Ε͹ɺ42-Λ࢖͍ͬͯͳ͍ͱ͍͏ ͚ͩͷҙຯ •  ࠷ۙͰ͸ɺ"$*%ಛੑΛ࣋ͨͳ͍σʔλϕʔε͕
42-MJLFͳΠϯλʔϑΣʔεΛ͍࣋ͬͯΔ͜ͱ΋ •  "$*%ಛੑΛ࣋ͨͳ͍͜ͱͷ݁Ռͱͯ͠ɺ42-ͱ͍ ͏ΠϯλʔϑΣʔεΛ࢖͏ඞཁ͕ͳ͍৔߹ͱࠞಉ͞ Ε͍ͯΔ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "$*%ಛੑΛຬͨ͞ͳ͍ •  "UPNJDJUZ $POTJTUFODZ *TPMBUJPO %VSBCJMJUZͷ͍ ͣΕ͔͕ෆཁͳϢʔεέʔε • 
୅ΘΓʹɺεέʔϥϏϦςΟɺ଎౓ɺՄ༻ੑͳͲ͕ ॏࢹ͞ΕΔ৔໘͕͋ΓɺͦΕ͕/P42-ొ৔ͷ͖͔ͬ ͚ͱͳͬͨ •  3JBL͸ͦͷதͰಛʹ%VSBCJMJUZʢӬଓੑ㲈଱ো֐ੑʣ εέʔϥϏϦςΟɺ଎౓ɺՄ༻ੑ͕ඞཁͳ৔໘Ͱ࢖ ͏σʔλϕʔε •  42-Λ࢖Θͳ͍ͷ͸ͦͷ݁ՌͰ͔͠ͳ͍

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 3JBLͷઃܭϙϦγʔ •  ଱ো֐ੑʢ'BVMUUPMFSBODFʣ σʔλΛઈରʹͳ͘͞ͳ͍ •  ֦ுੑʢ4DBMBCJMJUZʣ αʔόʔ௥ՃͰੑೳͱอଘ༰ྔ޲্ • 
Մ༻ੑʢ"WBJMBCJMJUZʣ ͍ͭͰ΋σʔλͷಡΈॻ͖͕Ͱ͖Δ •  ӡ༻ͷ༰қੑʢ0QFSBUJPOBMTJNQMJDJUZʣ ༷ʑͳॲཧΛࣗಈͰߦ͍ɺӡ༻खॱ͕γϯϓϧ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ֦ுੑ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ύʔςΟγϣχϯά • CJU੔਺ͷΩʔྖҬ3JOH • 3JOHΛ౳ִؒͰύʔςΟγϣϯ ʹ෼ׂ • ύʔςγϣϯΛΫϥελͷ֤ϊʔ υʹׂΓ౰ͯΔ node 0
node 1 node 2 node 3

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE $POTJTUFOU)BTIJOH • CJU੔਺ͷΩʔྖҬ3JOH • 3JOHΛ౳ִؒͰύʔςΟγϣϯ ʹ෼ׂ • ύʔςγϣϯΛΫϥελͷ֤ϊʔ υʹׂΓ౰ͯΔ • CVDLFULFZͷϋογϡ஋ʹΑ Γɺอଘ͢ΔύʔςΟγϣϯΛܾఆ
node 0 node 1 node 2 node 3 hash(“bucket/key”)

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ଱ো֐ੑ Մ༻ੑ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE σʔλͷෳ੡ • CJU੔਺ͷΩʔྖҬ3JOH • 3JOHΛ౳ִؒͰύʔςΟγϣϯʹ෼ ׂ • ύʔςγϣϯΛΫϥελͷ֤ϊʔυʹ ׂΓ౰ͯΔ • CVDLFULFZͷϋογϡ஋ʹΑΓɺอ ଘ͢ΔύʔςΟγϣϯΛܾఆ
• ࿈ଓ͢ΔύʔςΟγϣϯʹෳ੡Λอଘ node 0 node 1 node 2 node 3 hash(“bucket/key”)

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE Ұ࣌ো֐ൃੜ࣌ • Ұ࣌తͳϊʔυো֐ʢOPEFʣ͕ൃੜ • 165 (&5 %&-&5&ϦΫΤετ͸ɺϑ ΥʔϧόοΫϊʔυʢOPEFʣ΁ node 0
node 1 node 2 node 3 hash(“bucket/key”) ো֐ൃੜ࣌΋3ݸͷෳ੡Λ ඞͣ࡞Γʢ଱ো֐ੑʣɺ ͔ͭμ΢ϯλΠϜͳ͠ ʢՄ༻ੑʣ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE Ұ࣌ো֐ϊʔυͷ෮چޙ • Ұ࣌తͳϊʔυো֐ʢOPEFʣ͕ൃੜ • 165 (&5 %&-&5&ϦΫΤετ͸ɺϑ ΥʔϧόοΫϊʔυʢOPEFʣ΁ • ো֐ϊʔυͷ෮چʢOPEFʣ • l)BOEP⒎zʹΑΓɺσʔλΛϑΥʔϧό
οΫϊʔυʢOPEFʣ͔Β෮چϊʔυ ʢOPEFʣ΁Ҡߦ • ௨ৗӡ༻Λ࠶։ node 0 node 1 node 2 node 3 hash(“bucket/key”)

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ϨΠςϯγ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ϨΠςϯγ w ͷϨεϙϯεΛ௿-BUFODZͰฦ͍ͨ͠ w ෳ਺ϨϓϦΧૢ࡞ͷԠ౴Λશͯ଴ͭ৔߹ɺҰ൪஗͍ϊʔυʹ ॲཧ͕Ҿ͖ͣΒΕͯ͠·͏ OPEF OPEF OPEF PUT
value=0 PL PL PL

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 2VPSVNͱϨΠςϯγ w શϨϓϦΧ਺ΑΓɺগͳ͍Ԡ౴ͷΈͰ੒ޭΛฦ͢ࣄͰੑೳΛ ୡ੒͢Δ w Ԡ౴Λ଴ͭϨϓϦΧ਺͸XSJUFSFBEؒͰௐ੔͢Δ͜ͱͰ੔߹ ੑΛҡ࣋͢Δ OPEF OPEF OPEF
PUT value=0 PL PL

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 2VPSVN •  ౤ථϕʔεͰϨϓϦΧͷ੍ޚΛ͓͜ͳ͏ϓϩτίϧ 8 3/Ͱ࠷৽ͷσʔλ͕ࢀরՄೳ •  /ෳ੡਺ • 
8XSJUFͷ੒ޭ਺ •  3SFBEͷ੒ޭ਺ XSJUFͱSFBEͷͲͪΒͷύϑΥʔϚϯεΛ༏ઌ͢Δ͔ɻͲΕͩ ͚ϨϓϦΧΛอ͍͔࣋ͨ͠ʹΑͬͯ஋Λௐ੔͢Δ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ੔߹ੑΛอͯΔྫอͯͳ͍ྫ • / 8 3ͷ৔߹ 8 3/ 8/Λຬͨ͢ • 
/ 8 3ͷ৔߹ 8 3/ 8/Λຬ ͨ͢ put get put get old new •  N=3, W=2, R=1 ͷ৔߹ W+R > N Λຬ͍ͨͯ͠ͳ͍ put get ݹ͍σʔλΛಡΜͰ͠·͏͔΋

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ӡ༻ͷ༰қੑ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ϚελʔϨε • ෳ਺ϊʔυͰΫϥελΛߏ੒ • ͢΂ͯͷϊʔυ͸ର౳Ͱɺ Ϛελʔ΍୯Ұো֐఺͸ͳ͍ • ͢΂ͯͷϊʔυ͸ಉ౳Ͱɺ
ϦεΤετΛࡹ͖ɺσʔλΛ อ࣋͢ΔɻಛผͳΫϥελ؅ ཧϊʔυͳͲ͸ͳ͍ɻ node node node node node

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ϊʔυ௥Ճͱσʔλ࠶഑ஔ •  ϊʔυͷ௥Ճɺ࡟আͷࡍ͸ࣗಈతʹ࠶഑ஔઌ͕બఆ ͞ΕɺΫϥΠΞϯτ͔ΒͷϦΫΤετΛࡹ͖ͭͭɺ ཪͰσʔλͷసૹ͕ߦΘΕΔɻ •  σʔλͷ഑ஔͷWOPEF୯ҐͰߦΘΕΔɻ • 
ΫϥελʔͷSJOHTJ[F͕ϊʔυ਺ͷ্ݶͱͳΔ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE جຊతͳ͍͔ͭ͘ͷ֓೦

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE σʔλϞσϧ ɾ,FZ7BMVF4UPSF ɾ#VDLFUʹରͯ͠ૢ࡞Λߦ͏ ɾ#VDLFUͱ͸ɺ3%#Ͱྫ͑ΔͱςʔϒϧͷΑ͏ͳ΋ͷ #VDLFU #VDLFU query

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 3JBLͷσʔλͱ 3%#ͷσʔλൺֱ 3JBLͷσʔλߏ଄ 3%#ͷσʔλߏ଄ PCKFDU SFDPSEʢߦʣ #VDLFU 5BCMF
ද K V PK

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE Ծ૝ϊʔυ WOPEF㲈ύʔςΟγϣϯ •  3JBLϊʔυͷ಺෦͸͞ΒʹWOPEFͱݺ͹ΕΔԾ૝ϊʔυ •  ࣮ࡍͷσʔλ͸WOPEF୯ҐͰॲཧ͞ΕΔ • 
,FZ͔Βܭࢉ͞Εͨϋογϡ஋ΛݩʹɺରԠWOPEFΛܾఆ OPEF OPEF OPEF OPEF vnode vnode vnode vnode vnode vnode vnode vnode # IBTI #,

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE Ծ૝ϊʔυ WOPEF ͷσʔλ •  WOPEF಺ͷσʔλ͸ϑΝΠϧγεςϜ্ʹอଘ CBDLFOEґ ଘ
•  WOPEFͱಉ͡਺͚֤ͩϊʔυʹ഑ஔ͞ΕΔ OPEF OPEF OPEF OPEF

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE $"1ఆཧ σʔλ͸ৗʹ੔߹͓ͯ͠Γ DPOTJTUFODZ γεςϜ͕ࢭ·Δ͜ͱ͸ͳ͍ BWBJMBCJMJUZ ͲΜͳނোʹରͯ͠΋
QBSUJUJPOUPMFSBODF ͜ͷ̏ͭΛಉ࣌ʹຬͨ͢γεςϜ͸ଘࡏ͠ͳ͍ ͱ͍͏ܦݧଇ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 3JBL͸"1ॏࢹ •  ͍ͭͰ΋σʔλΛಡΈॻ͖Ͱ͖Δ BWBJMBCJMJUZ •  Ϋϥελ͕ωοτϫʔΫతʹ෼அ͞Εͯ΋ಈ͘ QBSUJUJPOUPMFSBODF
•  &WFOUVBM$POTJTUFODZͷ࠾༻ •  7FDUPS$MPDLʹΑΔিಥͷݕ஌

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "1ͳγεςϜ w ͱΓ͋͑ͣෳ਺όʔδϣϯͷڞଘΛڐ͢ w Ͳͷόʔδϣϯ͕ਖ਼͍͔͠ɺ΋͘͠͸Ϛʔδ͢Δ͔Λ3FBE ࣌ʹܾఆͯ͠ $POqJDU3FTPMVUJPO ɺ࠷ऴతʹ੔߹ͤ͞Δ &WFOUVBM$POTJTUFODZ
OPEF OPEF OPEF PUT value=0 PUT value=42 value=0 value={0, 42} value={0, 42}

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "1ͳγεςϜ w ωοτϫʔΫ෼அ͕ى͖ͯ΋ͱΓ͋͑ͣॻ͖ࠐΈΛڐ ͢ w Ұ࣌తʹ୅ΘΓͷϊʔυ΁σʔλΛอଘ OPEF OPEF OPEF PUT
value=0 PUT value=42 value=0 value=0 value=42 OPEF value=42

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "1Λ࣮ݱ w ෮چͨ͠ΒຊདྷͷϊʔυʹσʔλΛฦ͢ w ໭͞ΕͨϊʔυͰ͸྆ํͷσʔλΛ࢒͓ͯ͘͠ w ͜ͷͱ্͖ॻ͖ͯ͠͠·͏ͱɺσʔλϩετʹͳΔ OPEF OPEF OPEF PUT
value=42 value=0 value={0, 42} value=42 OPEF

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE γϣοϐϯάΧʔτͷྫ w อଘ͞Εͨෳ਺όʔδϣϯͷσʔλͷ6/*0/ΛͱΕ͹ɺ࠷ऴ తʹཉ͍͠σʔλʹͳΔ OPEF OPEF OPEF PUT value=ۺx1
PUT value=ࡶࢽx1 value=ۺx1 value={ۺx1, ࡶࢽx1} value={ۺx1, ࡶࢽx1}

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 4JCMJOHT •  ॻ͖ࠐΈ͕িಥ͢Δ͜ͱʹΑΓੜ͡Δෳ਺ͷσʔλ •  ࠷ऴతʹΫϥΠΞϯτͷ൑அʹΑͬͯɺ͕̍ͭ࠾༻ ͞ΕͨΓɺϚʔδ͞ΕΔ͜ͱʹΑͬͯղܾ͞ΕΔɻ $POqJDU3FTPMVUJPO

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 7FDUPS$MPDL • \ϊʔυ໊ੈ୅൪߸ ʜ^ͱ͍͏൒ॱংߏ଄Λ΋ͬͨੈ୅൪߸ • ࿦ཧΫϩοΫʹΑͬͯߋ৽ͷিಥΛݕ஌ʹར༻͞ΕΔ • σʔλͷҼՌؔ܎ΛܾఆͰ͖Δ B B B
C B B D B C

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ෼ࢄγεςϜͷ$POTJTOUFODZ͸೉͍͠ w ಉ࣌ߋ৽͕͋Δ৔߹ɺߋ৽ΛࢭΊΔʢ"WBJMBCJMJUZΛԼ͛Δʣ w ߋ৽ͷ্ॻ͖Λڐ͢ʢσʔλΛࣦ͏ʣ͔͔͠બ୒ࢶ͕ͳ͍ OPEF OPEF OPEF PUT value=0
PUT value=42

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ྫ$1ͳγεςϜͰ͸ w ωοτϫʔΫ෼அ͕ى͖͍ͯΔͱॻ͖ࠐΈΛڐ͞ͳ͍ w ˠ෼அத͸ॻ͖ࠐΈ͕Ͱ͖ͳ͍ʢՄ༻ੑͷ௿Լʣ OPEF OPEF OPEF PUT value=0
PUT value=42 value=0 value=0 value=42 Fail Fail

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ྫ$"ͳγεςϜͰ͸ w ωοτϫʔΫ෼அ͕ى͖ͯ͸ͳΒͳ͍ʢى͖ͳ͚Ε͹0,ʣ w ωοτϫʔΫ෼அத΋ॻ͖ࠐΈ͕Ͱ͖ͯ͠·͏ͱໃ६PS੒ ޭͨ͠ॻ͖ࠐΈΛ҉໧ʹ্ॻ͖͢Δσʔλϩετ OPEF OPEF OPEF PUT
value=0 PUT value=42 value=0 value=0 value=42

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ࢀߟ"NB[PO%ZOBNP •  Մ༻ੑୈҰɿৗʹॻ͖ࠐΈ͕Ͱ͖Δ͜ͱ ˠɹॻ͖ࠐΈ࣌Ͱ͸ͳ͘ɺಡΈࠐΈ࣌ʹ੔߹ੑνΣοΫ ˠɹྫɿ&$αΠτͰৗʹγϣοϐϯάΧʔτΛಈ͔͍ͨ͠ •  Ұ؏ੑͷߟ͑ํɿ&WFOUVBM$POTJTUFODZ ˠɹ"1༏ઌ͕ͩɺνϡʔχϯάՄೳ
•  ϨΠςϯγͷߟ͑ํɿ ˠύʔηϯλΠϧΛॏཁࢹ͢Δ •  %F$BOEJBFUBM %ZOBNP"NB[PO`T)JHIMZ"WBJMBCMF ,FZWBMVF4UPSF 4041`

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 2VFSZ •  HFUQVUEFMFUF •  4FDPOEBSZ*OEFY J • 
.BQ3FEVDF •  $PVOUFS •  4FBSDI ৄࡉ͸ΞϓϦέʔγϣϯ։ൃͷτϨʔχϯά

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 4FDPOEBSZ*OEFY J •  ,FZ7BMVFʹରͯ͠෇͚ΒΕΔϝλ৘ใͰʮλάʯͷҰछ •  λάʹ͸ɺόΠφϦ จࣈྻ
ͷଞʹɺ਺ࣈ͕࢖͑Δ •  λά໊ʹΑΔɺ׬શҰகݕࡧ·ͨ͸ɺൣғݕࡧ͕Մೳ •  ηΧϯμϦΠϯσοΫεʹ֘౰ͨ͠ʮ,FZҰཡʯ͕ಘΒΕΔ 10 20 30 40 A B C age=20͔Β30 initial = B ࡧҾ໊ɿage ࡧҾ໊ɿinitial D

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE .BQ3FEVDF •  ෳࡶͳ໰͍߹ΘͤɺղੳͱूܭͳͲɺ༷ʑͳॲཧ͕ Մೳ •  ΫΤϦ಺༰͸ɺJavaScript·ͨ͸ErlangͰهड़ OPEF
OPEF OPEF OPEF Riak Client M/R Map

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE $PVOUFS •  CRDTΛ࢖ͬͨPNΧ΢ϯλʔ •  ͨͩ͠ɺRDBͷauto incrementͷ༻ʹҰ؏ੑͷ͋ΔΧ ΢ϯλʔͰ͸ͳ͍ͷͰదԠՕॴʹ஫ҙ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 4FBSDI •  &SMBOHʹΑΔϑϧεΫϥονͷશจݕࡧػೳ •  ӳ਺ࣈͷΈରԠ •  ։ൃதͷ3JBLͰ4PMSΛ࢖ͬͨ΋ͷʹஔ͖׵ΘΔ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE &SMBOHجૅ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE process &SMBOH •  &SJDTTPO͕ి࿩ަ׵ػ༻ʹ։ൃʢ৴པੑॏࢹʣ •  ฒྻ෼ࢄॲཧʢϝοηʔδύογϯάʣ •  ܰྔϓϩηεͱͦΕʹඥ෇͍ͨܰྔ($
4UPQUIF XPSME͕ͳ͍ process message queue message queue

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ϊʔυ໊ͱFQNE •  &SMBOHͰ͸&SMBOHϊʔυ 7. ىಈ࣌ʹϊʔυ໊Λࢦ ఆ͢Δɹnode_name@[FQDN or hostname
or IP]! •  ෼ࢄ&SMBOHͰϊʔυؒͰ௨৴Λ͓͜ͳ͏ࡍɺࣝผࢠ ͱͯ͠ϊʔυ໊Λར༻͢Δ •  ෼ࢄ&SMBOH؀ڥͰ͸ϊʔυ໊͔Β࣮ࡍʹόΠϯυ͠ ͍ͯΔ5$1ϙʔτΛ஌ΔͨΊʹ໊લղܾΛߦ͏ •  ໊લղܾ༻ͷϓϩηεͱͯ͠FNQE͕ࣗಈతʹىಈ ͢Δ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ηΩϡϦςΟΫοΩʔ •  ҟͳΔϊʔυͱͷ௨৴Λߦ͏ͨΊʹ͸ηΩϡϦςΟ ΫοΩʔͱݺ͹ΕΔڞ༗ΫοΩʔ͕ඞཁ •  ڞ༗ΫοΩʔΛ༻ҙ͠ɺࣄલʹશͯͷϊʔυؒͰڞ ༗͓ͯ͘͠

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ෼ࢄ&SMBOH YY FQNE &SMBOHϊʔυ &SMBOHϊʔυ YY FQNE &SMBOHϊʔυ
&SMBOHϊʔυ name: [email protected] port: 59007 cookie: xjfi2kd9hq name: [email protected] port: 59010 cookie: xjfi2kd9hq name: [email protected] port: 59009 cookie: xjfi2kd9hq name: [email protected] port: 59027 cookie: xjfi2kd9hq [email protected] port: 59009 ڞ༗cookie Λ࢖ͬͯ઀ଓ cookie: xjfi2kd9hq port: 4369 port: 4369

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE &SMBOHͷBQQMJDBUJPO •  &SMBOH7.্Ͱىಈ͢Δϓϩηεू߹ͷ࠷খ୯Ґ •  ಛఆͷ໰୊Λѻ͏Ϟδϡʔϧɾϓϩηεͷू߹ •  ݸʑͷΞϓϦέʔγϣϯ͕ϝοηʔδΛ΍ΓͱΓ͢ Δ͜ͱͰɺ֎෦΁ػೳΛఏڙ͢Δ
"QQMJDBUJPO process process process "QQMJDBUJPO process process process "QQMJDBUJPO process process process

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ࢀߟ 3JBL্ͷ&SMBOHBQQMJDBUJPO ଟ͘ͷΞϓϦέʔγϣϯʹΑͬͯߏ੒͞Ε͍ͯΔ % grep Application console.log! 2014-03-05
12:58:59.654 [info] <0.7.0> Application lager started on node '[email protected]'! 2014-03-05 12:58:59.661 [info] <0.7.0> Application sasl started on node '[email protected]'! 2014-03-05 12:58:59.662 [info] <0.7.0> Application crypto started on node '[email protected]'! 2014-03-05 12:58:59.662 [info] <0.7.0> Application public_key started on node '[email protected]'! 2014-03-05 12:58:59.666 [info] <0.7.0> Application ssl started on node '[email protected]'! 2014-03-05 12:58:59.668 [info] <0.7.0> Application riak_sysmon started on node '[email protected]'! 2014-03-05 12:58:59.673 [info] <0.7.0> Application os_mon started on node '[email protected]'! 2014-03-05 12:58:59.682 [info] <0.7.0> Application runtime_tools started on node '[email protected]'! 2014-03-05 12:58:59.695 [info] <0.7.0> Application erlang_js started on node '[email protected]'! 2014-03-05 12:58:59.705 [info] <0.7.0> Application inets started on node '[email protected]'! 2014-03-05 12:58:59.707 [info] <0.7.0> Application mochiweb started on node '[email protected]'! 2014-03-05 12:58:59.711 [info] <0.7.0> Application webmachine started on node '[email protected]'! 2014-03-05 12:58:59.711 [info] <0.7.0> Application basho_stats started on node '[email protected]'! 2014-03-05 12:58:59.715 [info] <0.7.0> Application bitcask started on node '[email protected]'! 2014-03-05 12:58:59.812 [info] <0.7.0> Application riak_core started on node '[email protected]'! 2014-03-05 12:58:59.835 [info] <0.7.0> Application riak_pipe started on node '[email protected]'! 2014-03-05 12:58:59.851 [info] <0.7.0> Application riak_api started on node '[email protected]'! 2014-03-05 12:58:59.853 [info] <0.7.0> Application sidejob started on node '[email protected]'!

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ͍ͭͰʹ͓͖͍֮͑ͯͨ༻ޠ FSUT&SMBOH3VO5JNF4ZTUFN"QQMJDBUJPO &SMBOHͷ࣮ߦ؀ڥ 4"4-4ZTUFN"SDIJUFDUVSF4VQQPSU-JCSBSJFT &SMBOHඪ४ͷϩΨʔͳͲ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ΞʔΩςΫνϟ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 4PGUXBSF4UBDL Erlang/OTP Backend riak_core riak_pipe riak_kv riak_search webmachine/mochiweb
riak_api/riak_pb memory bitcask multi eleveldb

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ϥΠϒϥϦ •  MBHFSϩΪϯάϥΠϒϥϦ •  XFCNBDIJOFNPDIXFC8FCαʔό •  GPMTPN౷ܭ৘ใϥΠϒϥϦ • 
SJBL@DPSF෼ࢄγεςϜϑϨʔϜϫʔΫ •  SJBL@LW෼ࢄ,74ͦͷ΋ͷ •  SJBL@QJQFl6/*9QJQFTGPS3JBLz.BQ3FEVDF༻

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE HFUQVUEFMFUFͷ ϦΫΤετॲཧ •  ෳ਺ͷWOPEF΁ͷϦΫΤετΛѻ͏ίʔσΟωʔλ ͕ϦΫΤετͷϋϯυϦϯάΛߦ͏ •  ίʔσΟωʔλ͕શͯͷϨϓϦΧ΁ͷϦΫΤετΛ ࢼΈΔ
•  ίʔσΟωΠλʔͰෳ਺ͷϦΫΤετͷԠ౴Λ଴ͪɺ Ϩεϙϯεͷௐ੔Λߦ͏ •  HFUͷࡍʹҟͳΔσʔλ͕WOPEF͔Βฦ͖ͬͯͨ৔߹ɺ ݁ՌΛௐ੔ͯ͠ɺσʔλΛॻ͖໭͢ SFBESFQBJS

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "OBUPNZPGB3FRVFTU get(“mybucket/mykey”) client Riak 6 7
8 9 10 11 12 13 14 15 16 The Ring

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "OBUPNZPGB3FRVFTU get(“mybucket/mykey”) Get Coordinator (FSM) client
Riak hash(“mybucket/mykey”) => 10, 11, 12 Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 The Ring

Riak hash(“mybucket/mykey”) => 10, 11, 12 get(“mybucket/mykey”) Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 The Ring

Riak Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 R=2 v1 v2 The Ring v2 v1 v2

Riak Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 R=2 v1 v2 v2 The Ring v2 v1 v2

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 3FBE3FQBJS Get Coordinator (FSM) Riak Coordinating
node Cluster 6 7 8 9 10 11 12 13 14 15 16 R=2 v1 v2 Stale! The Ring v2 v1 v2

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 3FBE3FQBJS Get Coordinator (FSM) Riak Coordinating
node Cluster 6 7 8 9 10 11 12 13 14 15 16 R=2 v2 v2 The Ring v2 v2 v2

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "DUJWF"OUJ&OUSPQZ ""& •  ϊʔυো֐΍ωοτϫʔΫஅͳͲͰɺϨϓϦΧؒͷ σʔλʹ͸ࠩҟ͕ൃੜ •  ""&͸όοΫάϥ΢ϯυͰࠩҟΛݟ͚ͭɺࣗಈͰम
෮ Hash tree 0xdeadbeef Hash tree 0xdeadbeef Hash tree 0xcafebabe Repair data

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE .BQ3FEVDF 4FDPOEBSZ*OEFYͷ ϦΫΤετॲཧ •  શσʔλ͕ࢀরͰ͖ΔWOPEFͷ૊Έ߹ΘͤΛબఆ $PWFSBHF ͯ͠ɺͦΕΒશͯʹ໰͍߹ΘͤΔ
ͷWOPEF •  ̏ͭͷϨϓϦΧͷ͏͕ͪ̍ͭࢀর͞ΕΔ •  ϨϓϦΧΛશͯࢀর͢Δ༁Ͱ͸ͳ͍ͷͰɺ $PWFSBHFΛ༻͍ΔॲཧͰ͸ɺSFBESFQBJS͸࣮ߦ͞ Εͳ͍ •  ଟ͘ͷ৔߹ɺશͯͷ෺ཧαʔό΁ͷϦΫΤετͱͳ Δ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "OBUPNZPGB3FRVFTU 2i(“mybucket”) client Riak 6 7
8 9 10 11 12 13 14 15 16 The Ring

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "OBUPNZPGB3FRVFTU 2i(“mybucket”) Coordinator (FSM) client Riak
coverage() => 1, 4, 7, 10, 13, 16… Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 The Ring

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE "OBUPNZPGB3FRVFTU 2i(“mybucket”) Coordinator (FSM) client Riak
Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 The Ring v0 v38 v1 v54 v7 v9 v41 v9 v81

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 4FDPOEBSZ*OEFY •  σʔλ͕ॻ͖ࠐ·ΕΔࡍʹɺWBMVFͱ͸ผͰJOEFY͕ ผ్όοΫΤϯυ΁ॻ͖ࠐ·ΕΔ •  ӡ͕ѱ͍ͱΠϯσοΫεσʔλͷॻ͖ࠐΈͷΈ͕ࣦ ഊ͢ΔՄೳੑ΋͋Δमਖ਼πʔϧ͋Γ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 4FDPOEBSZ*OEFY •  ͭͷϨϓϦΧͷ಺ɺ͕̍ͭࢀরͰ͖ΔΑ͏ͳWOPEF ͷαϒηοτΛબఆ͠ DPWFSBHF ɺͦΕΒʹରͯ͠ σʔλͷҰཡऔಘ͓ΑͼpMUFSJOHΛ͓͜ͳ͏ • 
ϨϓϦΧΛॻ͖ଛͨ͡৔߹ɺσʔλ͕ݟ͑ͳ͍λΠ ϛϯά͕ଘࡏ͠͏Δ :JFMEWT)BSWFTU •  SFBESFQBJS͸࣮ߦ͞Εͳ͍

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE :JFMEWT)BSWFTU ΫΤϦͷ੒ޭͱσʔλ͕͖ͪΜͱݟ͑Δ͜ͱͷτϨʔυΦϑ σʔλ͕ݟ͑ͳ͘ͳΔՄೳੑΛڐ༰͠ɺৗʹϦΫΤετ΁Ԡ౴͢Δ ͔ɺϦΫΤετ͕ࣦഊ͢ΔࣄΛڐ༰ͯ͠ɺσʔλ͕ݟ͑Δ͜ͱΛอ ূ͢Δ͔ 3JBL͸લऀ • 
:JFMEϦΫΤετ͕੒ޭ͢Δ཰ 2VFSJFTDPNQMFUFE2VFSJFTP⒎FSFE •  )BSWFTUϨεϙϯεʹσʔλ͕൓ө͞ΕΔ཰ %BUBBWBJMBCMF5PUBMEBUBTFU

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE .BQ3FEVDF • JOQVUNBQSFEVDF ͷॲཧΛݸʑͷWOPEF্Ͱ ࣮ࢪ • NBQSFE༻ͷWOPEF • DPSWFSBHFΛ࢖ͬͯҰ෦ ͷWOPEFΛར༻ͯ͠σʔλ Λऔಘ
:JFMEWT)BSWFTU

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE .BQ3FEVDFʢ+BWB4DSJQUʣ •  +BWB4DSJQUΛ࢖༻ͨ͠ࡍͷίετ •  औಘͨ͠0CKFDU̍ͭ̍ͭΛKTʹγϦΞϥΠζ •  γϦΞϥΠζͨ͠σʔλΛ4QJEFS.POLFZ্Ͱॲ ཧ
•  +BWB4DSJQUͰͷ.BQ3FEVDFΛ࢖༻͠ͳ͍৔߹͸ 4QJEFS.POLFZΛىಈ͠ͳͯ͘΋ྑ͍ʢϦιʔεઅ ໿ʣ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE վΊͯ#VDLFUͱ͸ʁ •  جຊతʹ͸୯ͳΔ໊લۭؒ •  σʔλͷ֨ೲઌ ύʔςΟγϣϯ Λܾఆ͢Δࡍͷϋ ογϡܭࢉʹ༻͍ΔQSFpYIBTI
CVDLFULFZ •  #VDLFUຖͷઃఆ஋ͷ֨ೲ৔ॴCVDLFUQSPQFSUJFT

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE #VDLFU1SPQFSUJFT •  #VDLFUຖͷΧελϜͷઃఆ஋ •  O@WBMRVPSVNCBDLFOEઃఆ •  DPOqJDUSFTPMVUJPOઃఆͳͲ • 
BMMPX@NVMUJMXX •  SJOHσʔλͷҰ෦ͱͯ͠؅ཧ͞ΕɺΫϥελ಺ͷϊ ʔυؒͰڞ༗͞ΕΔ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE SJOHσʔλ Ϋϥελ಺ϊʔυؒͰڞ༗͢Δ؅ཧσʔλ •  ΫϥελɺύʔςΟγϣϯɺWOPEFɺ෺ཧϊʔυͷ ৘ใʢͲͷαʔόʹͲͷWOPEFׂ͕Γ౰ͯΒΕ͍ͯ Δ͔ͳͲʣ •  CVDLFUQSPQFSUJFT
Ϋϥελͷঢ়ଶ͕มԽͨ͠ΓɺCVDLFUQSPQFSUJFTͷߋ ৽ʹΑͬͯɺSJOHσʔλ΋ߋ৽͞ΕΔɻ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE (PTTJQ1SPUPDPM •  ϊʔυؒͰͷ৘ใ఻ୡʹ࢖༻͞ΕΔϓϩτίϧ •  ఆظతʹϥϯμϜʹબఆͨ͠ϊʔυͱ৘ใΛަ׵͢ Δ SJOHσʔλ
•  ͢Έ΍͔ʹ৘ใΛ֦ࢄͤ͞Δ͜ͱ͕Ͱ͖Δ •  ඇޮ཰͕෦෼͕͋Γɺ୆਺͕૿͑ͯ͘Δͱݫ͍͠ QMVNUSFFͷಋೖ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 1MVHHBCMF#BDLFOE όοΫΤϯυ͸༻్ʹԠͯ͡࢖͍෼͚Δ •  CJUDBTL •  MFWFMEC •  NFNPSZ
•  NVMUJ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE #JUDBTL •  -PH4USVDUVSFE)BTI5BCMF •  ௥هܕɾίϯύΫγϣϯ •  ΩʔΛ͢΂ͯϝϞϦ্ʹల։ LFZEJS
ϊʔυʹอଘͰ͖Δσʔλྔ͕ϝϞϦʹ΋ґଘ •  55-͋Γ •  )JOUpMFΩʔͷҰཡॲཧɺىಈ࣌ͷΩʔಡΈࠐΈΛิॿ •  4FDPOEBSZ*OEFYͷαϙʔτͳ͠

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE -FWFMEC •  -PH4USVDUVSFE.FSHF5SFF •  ௥هܕɾίϯύΫγϣϯ •  (PPHMFʹΑͬͯ։ൃɾެ։ • 
#BTIPͰGPSLͯ͠վྑ •  XSJUFCV⒎FS •  4FDPOEBSZ*OEFYͷαϙʔτ͋Γ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE .FNPSZ#BDLFOE •  ΦϯϝϞϦͰσʔλΛอ࣋͢Δ •  55- FYQJSF ͋Γ • 
ϝϞϦ্ݶ஋ NBY@NFNPSZ Λઃఆ͢Δͱઃఆ஋Λ ௒͑ͨࡍʹݹ͍σʔλΛ࡟আ WOPEFຖʹ'*'0

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE .VMUJCBDLFOE •  ෳ਺ͷCBDLFOEఆٛΛ༻ҙͯ͠ɺCBDLFUຖʹ CBDLFOEΛ੾Γସ͑Δ͜ͱ͕Մೳ •  CJUDBTLͱMFWFMECΛซ༻͢ΔͳͲ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE .VMUJ%BUB$FOUFS 3FQMJDBUJPO ෳ਺%$ؒͰͷɺยํ޲·ͨ͸ ྆ํ޲ͷσʔλಉظ • σΟβελɾϦΧόϦ • σʔλϩʔΧϦςΟ • ΞΫςΟϒόοΫΞοϓ
• 1SPEVDUJPOΫϥελʔͱ 4UBHF༻ΫϥελʔʹΑΓݕূ ؀ڥΛߏங ˞&OUFSQSJTF൛ͷػೳ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE .VMUJ%BUB$FOUFS 3FQMJDBUJPO • TPVSDFDMVTUFSσʔλΛૹ ৴͢Δଆ • TJOLDMVTUFSσʔλΛड৴͢ Δ ಉظ͞ΕΔ ଆ
૒ํ޲ʹಉظ͢Δ৔߹͸྆ํ ͷΫϥελ͕TPVSDFDMVTUFS Ͱ͋ΓɺTJOLDMVTUFSͰ͋Δ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 'VMMTZOD3FQMJDBUJPO •  ΫϥελؒͰσʔλશମͷ ಉظΛߦ͏ •  શσʔλΛεΩϟϯͯࠩ͠ ෼ΛWOPEFؒͰૹ৴ • 
εέδϡʔϥىಈɺόον ىಈͰఆظతʹ࣮ߦ͢Δ •  ಉظॲཧΛ؅ཧ͢Δίʔσ Οωʔλϊʔυ͕֤Ϋϥε λ಺Ͱબग़͞Εɺނো࣌ʹ ͸ࣗಈతʹଞϊʔυ΁੾Γ ସΘΔɻ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 3FBMUJNF3FQMJDBUJPO • σʔλͷߋ৽ຖʹಉظΛ͔͚ Δ • 3JBLΫϥελ΁ͷߋ৽ͻͱͭ ͻͱͭΛಉظ༻ͷΩϡʔʹੵ Έɺݸʑʹ4JOL$MVTUFS΁ૹ৴

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ͦͷଞ $BDBEJOH •  ෳ਺ͷΫϥελΛ࿈࠯తϨϓϦέʔγϣϯ͢Δ Ϋϥελ"Ϋϥελ#Ϋϥελ$ ""&4USBUFHZ •  "DUJWF"OUJ&OUSPQZΛར༻ͨ͠ޮ཰తͳΫϥελ
ؒϨϓϦέʔγϣϯ ·ͩUFDIQSFWJFX

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE ͓΋ͳ৘ใιʔε •  υΩϡϝϯτ IUUQEPDTCBTIPDPN •  .- SJBLVTFST!MJTUTCBTIPDPNSJBLVTFSTKQ!MJTUTCBTIPDPN SJBLDSJUJDBMJTTVFT!MJTUTCBTIPDPN
•  UXJUUFS !CBTIP!#BTIP+BQBO

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE 2VFTUJPO

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE '"2 •  ଞͷσʔλϕʔεͱͷൺֱ͸ʁ •  3JOHTJ[F͕ͷྦྷ৐ʹͳ͍ͬͯΔͷ͸ͳͥʁ •  δϟʔφϧͷΑ͏ͳ࢓૊Έ͸࢖͍ͬͯΔ͔ʁ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE WT.POHP%# •  .POHP%#͸$1γεςϜ •  γϟʔσΟϯά͸ൺֱత৽͍͠ػೳ •  ϨϓϦΧηοτʹΑΔσʔλͷ৑௕Խ΋Մೳ͕ͩϩ οΫͷཻ౓͕େ͖͘8SJUFͷεϧʔϓοτ͸ग़ʹ͘
͍ •  υΩϡϝϯτࢦ޲ͰϢʔβʔϑϨϯυϦʔͳػೳη οτ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE WT$BTTBOESB •  3JBLͱಉ༷"1ॏࢹͷγεςϜ •  σʔλͷߋ৽͸-88Ͱ͋ΔͨΊɺ8SJUFXSJUF DPOqJDUͰ͸σʔλ͕҉໧ʹ্ॻ͖͞Εͯ͠·͏ •  $2-Λར༻Ͱ͖Δ+%#$͸༏Ε͍ͯΔ
•  +7.Ͱಈ࡞͢ΔͨΊ($ͷνϡʔχϯάʹΑͬͯ͸ Մ༻ੑ͕େ͖͘Լ͕Δ

#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE WT3FEJT •  3FEJT͸ʮΩϟογϡʯͷͨΊͷγεςϜ •  ӬଓԽͷͨΊͷσʔλϕʔεͰ͋Δ3JBLͱ͸ࠜຊత ʹར༻໨త͕ҟͳΔ •  ෼ࢄߏ੒͸ྺ࢙͕ઙ͍
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#BTIP5FDIOPMPHJFT*OD"MM3JHIUT3FTFSWFE WT3%#.4 •  طଘͷ3%#.4͸શͯ$1ܕͷγεςϜ •  ϑΣΠϧΦʔόʔ࣌ͷఀࢭ࣌ؒ͸਺ඵҎ্ •  .BTUFSTMBWFͷߏ੒Ͱ͋ͬͨΓγϟʔσΟϯάͷઃ ܭʹΑͬͯ͸෼ࢄߏ੒࣌ͷӡ༻͕೉͍͠
•  ͞·͟·ͳτϥϯβΫγϣϯִ཭ੑϨϕϧ͕͋Δ͕ɺ جຊతʹ͸σʔλͷѻ͍Ͱ͸"$*%͕อূ͞ΕΔ

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