Web API サーバーとしての Elixir の可能性

API Meetup Tokyo #9 での発表資料です

Transcript

1. 8FC
   "1*
   αʔόʔͱͯ͠ͷ
   &MJYJS
   ͷՄೳੑ
   /BPZB
   *UP
   ,BJ[FO
   1MBUGPSN
   *OD
   
   
   
   "1*
   .FFUVQ
   5PLZP
   
   
2. ࡢࠓ͜Μͳ͜ͱ͋Γ·ͤΜ͔
   •  ͨͩͷ
   +40/
   "1*
   ʹ
   3BJMT
   Ͱ͸ŋŋŋ
   –  ϋΠτϥϑΟοΫͳҊ݅Ͱ࢖͍ͮΒ͍
   –  ཁ݅ʹରͯ͠ϝϞϦϑοτϓϦϯτ͕େ͖͗͢
   –  ઀ଓ਺͕ଟ͍ͱεέʔϧ͠ͳ͍
   –  ଱ো֐ੑʹෆ҆
   •  ʮεύΠΫͨ͠ͷͰམͪ·ͨ͠ʯͰ͸ࡁ·͞Εͳ͍ɻ޿ࠂ αʔόʔͱ͔
   
3. ,BJ[FO
   1MBUGPSN
   Ͱ͸ŋŋŋ
   •  ҎԼͷέʔεͰ࣮ࡍʹ͋ͬͨ
   –  ޿ࠂ഑৴ͷ֎෦αʔόʔͱͷ΍ΓͱΓ
   •  ଟྔͷ઀ଓ
   –  3FEJT
   ͱ
   *0
   ͯ͠ฦ౴͢Δ͚ͩͷ
   "1*
   αʔόʔ
   •  ཁ݅͸γϯϓϧɻෳࡶͳ
   .PEFM
   
   7JFX
   ཁΒͳ͍
   •  Ͱ΋εύΠΫͰམͱͨ͘͠ͳ͍
   ͻͱ·ͣ
   /PEFKT
   Ͱ
   ରԠͨ͠
   
4. 親 子 fork()   ϚϧνϓϩηεϞσϧʹΑΔฒߦॲཧ
   ྫ
   3BJMT
   ͷ࣮ߦ؀ڥ
   
5. 1SPT
   
   $POT
   •  1SPT
   –  ҆શ
   •  ϦΫΤετ͝ͱʹϝϞϦۭؒ෼཭
   㱺
   Ϋϥογϡͯ͠΋ ଞʹӨڹ͠ͳ͍
   –  ϓϩάϥϛϯάϞσϧ͕୯७
   ಉظͰ0,
   –  ϚϧνίΞ
   
   •  $POT
   –  εέʔϥϏϦςΟʹ೉
   •  ϝϞϦେ
   㱺
   ࠷େϓϩηε਺
   
   ಉ࣌ฒߦ਺্ݶ
   •  04ϓϩηεεϨουͷίϯςΩετεΠον
   
6. ࣌ؒ
   A B A C D B ・・・ select()  /  epoll()   ίϯςΩετ
   εΠον
   ΠϕϯτۦಈϞσϧʹΑΔฒߦॲཧ
   ྫ
   &WFOU.BDIJOF
   /PEFKT
   
7. 1SPT$POT
   •  1SPT
   –  εέʔϥϏϦςΟ
   ߴ͍ฒߦॲཧੑೳ
   •  ϝϞϦϑοτϓϦϯτখ͍͞
   •  ಉ࣌઀ଓ਺͕૿͑ͯ΋εέʔϧ
   •  $POT
   –  ଱ো֐ੑʹ೉
   •  མͪΔͱ͖͸શ෦མͪΔ
   •  ϝϞϦϦʔΫ͜Θ͍
   –  ϓϩάϥϛϯάϞσϧ͕΍΍ෳࡶ
   ˞/PEFKT
   ͩͱͦΕ΄ͲͰ΋ͳ͍
   –  ϚϧνίΞ
   $16
   Λ࢖͍ͮΒ͍
   
8. τϨʔυΦϑ
   •  ฒߦॲཧੑೳ͸Ք͛ͳ͍͕҆શͰ୯७ͳ Ϛϧνϓϩηε εϨου Ϟσϧ͔
   •  ฒߦॲཧੑೳ͕ߴ͍͕ӡ༻ʹؾΛݣ͏Πϕ ϯτۦಈϞσϧ͔
   ͙͵͵ŋŋŋ
   
9. ͦ͜Ͱ
   &SMBOH
   Ͱ͢
   
10. &SMBOH
    ͷ࣮ߦ؀ڥ
    •  #&".
    &SMBOH
    7.
    – ܰྔϓϩηε
    ŋŋŋ
    ࣮ߦίϯςΩετ
    •  খ͍͞
    ϫʔυɺىಈʹ
    d
    ϚΠΫϩඵ
    – ฒߦॲཧੑೳ͕ߴ͍
    •  7.
    ͕ܰྔϓϩηεΛεέδϡʔϦϯά
    –  7.εϨουຖʹϥϯΩϡʔ
    –  ཪଆͰ͸ඇಉظεϨουϓʔϧ
    ref:  h+p://www.erlang-­‐factory.com/upload/presenta=ons/708/HitchhikersTouroEheBEAM.pdf
11. ΞΫλʔϞσϧ
    ϝοηʔδύογϯά
    ஋͸͢΂ͯίϐʔ
    4IBSFE
    /PUIJOH
    ϝʔϧϘοΫεʹ
    ΩϡʔΠϯά
    
12. &SMBOH
    Ͱͷ
    ωοτϫʔΫαʔόʔ
    •  ϦΫΤετʹܰྔϓϩηε
    – ҆શ
    •  ܰྔϓϩηε
    ŋŋŋ
    ಠཱ࣮ͨ͠ߦίϯςΩετ
    •  4IBSFE
    /PUIJOH
    ŋŋŋ
    ͋Δϓϩηε͕Ϋϥογϡ ͯ͠΋໰୊ͳ͍
    – ߴ͍ฒߦॲཧੑೳ
    •  ܰྔ
    ŋŋŋ
    ϝϞϦϑοτϓϦϯτখ͍͞
    •  Ϣʔβʔϥϯυ
    
    04
    ͷίϯςΩετεΠονͳ ͠
    
13. &SMBOH
    ͷϝϞϦϞσϧ
    •  QFS1SPDFTT($
    –  ϓϩηεຖʹ($
    •  άϩʔόϧ($ͩͱશମʹӨڹ͢Δ
    •  ϓϩηε෼཭
    –  4IBSFE
    /PUIJOH
    –  ϓϩηε)FBQ
    
    •  ($͸ܰྔϓϩηεຖʹ૸ΒͤɺཁΒͳ͘ͳͬͨΒഇغ
    ؆ ୯Ͱޮ཰͕Α͍
    ҆ఆͨ͠Ԡ౴ੑೳ
    ߴ͍଱ো֐ੑ
    
14. 4VQFSWJTPS
    Supervisor ϓϩηε
    ؂ࢹ
    ʮಥવͷࢮʂʯ
    ϓϩηεࢮΜͩ͠ɺઓུ ʹ߹Θͤͯ࠶ىಈ͠ͱ͘ Θ
    crash
15. -FU
    JU
    DSBTI
    •  ࣦഊʹඋ͑ͳ͍ɻྫ֎Λั·͑ͳ͍
    •  4VQFSWJTPS
    Ͱ؂ࢹ͓͍ͯͯ͠ɺͦͷ· ·ى͜͢ͳΓύϥϝʔλม͑ͯϦτϥΠ͞ ͤΔͳΓŋŋŋ
    ނোରԠϞσϧ͕
    ݴޠج൫Ͱఏڙ
    
16. /PEFKT
    WT
    &SMBOH
    •  /PEFKT
    WT
    &SMBOH
    –  IUUQLVFOJTIJIBUFOBEJBSZKQFOUSZ 
    –  ނোϞσϧɺίʔυมߋɺίʔυҠಈɺແఀࢭΞοϓάϨʔυɺ ͜͏͍͏ͷͬͯYͰμ΢ϯλΠϜͷγεςϜͩͱେࣄͩΑ Ͷɻ
    +PF
    "SNTUSPOH
    –  ݁ہੑೳΑΓ΋ނো଱ੑͳΜͩΑͶ
    
    ᴷ
    ͦΕͳ
    
17. Ͱ΋
    &SMBOH
    ͳΜͰ͠ΐ͏
    
18. ͦ͜Ͱ
    &MJYJS
    
19. &MJYJS
    •  &SMBOH
    7.
    ͷ্Ͱಈ͘ݴޠ
    –  &SMBOH
    7.
    ͷڧΈ
    ฒߦॲཧੑೳɺ଱ো֐ੑ
    Λͦͷ··ʹɺγϯ λοΫεΛೃછΈ΍͘͢
    •  KPTFWBMJN
    &SMBOHͰݟͨ͜ͱ͸ΈΜͳؾʹೖ͚ͬͨͲɺݟͳ͔ͬͨ͜ͱ ͸ΈΜͳݏ͍
    –  &SMBOH
    ͱ૬ޓޓ׵
    –  051
    ΋΋ͪΖΜ͋ΔΑ
    •  Ϟμϯͳύοέʔδ؅ཧγεςϜɺ-B[ZίϨΫγϣϯ
    4USFBN ɺ ϓϩτίϧͳͲͷ௥Ճཁૉ
    •  ৄ͘͠͸
    –  IUUQTTQFBLFSEFDLDPNOBPZBFMJYJSHPTIBPKJF
    
21. Ͱ΋
    8FC
    "1*
    ࡞Δͷ
    ೉͍͠ΜͰ͠ΐ͏
    
22. 1IPFOJY
    ᴷ
    &MJYJS
    PO
    3BJMT
    
24. 1IPFOJY
    Cowboy Plug Phoenix .JEEMFXBSF
    )551
    4FSWFS
    
    &SMBOH
    1SPDFTT
    
    3FFRVFTU
    
25. ϕϯνϚʔΫ
    ref:  h+p://www.li+lelines.com/blog/2014/07/08/elixir-­‐vs-­‐ruby-­‐showdown-­‐phoenix-­‐vs-­‐rails/ $  ./wrk  -­‐t12  -­‐c800  -­‐d180S  -­‐-­‐timeout  2000  "http://tranquil-­‐brushlands-­‐6459.herokuapp.com/showdown"   Running  3m  test  @  http://tranquil-­‐brushlands-­‐6459.herokuapp.com/showdown      12  threads  and  800  connections      Thread  Stats      Avg            Stdev          Max      +/-­‐  Stdev          Latency      318.52ms    139.92ms      1.39s        82.03%          Req/Sec      224.42          57.23      368.00          68.50%      484444  requests  in  3.00m,  0.99GB  read      Socket  errors:  connect  0,  read  9,  write  0,  timeout  0   Requests/sec:      2691.03   Transfer/sec:            5.65MB $  ./wrk  -­‐t12  -­‐c800  -­‐d180S  -­‐-­‐timeout  2000  "http://dry-­‐ocean-­‐9525.herokuapp.com/showdown"   Running  3m  test  @  http://dry-­‐ocean-­‐9525.herokuapp.com/showdown      12  threads  and  800  connections        Thread  Stats      Avg            Stdev          Max      +/-­‐  Stdev          Latency          3.07s          2.06s        8.36s        70.39%          Req/Sec        24.65            9.97        63.00          67.10%      54256  requests  in  3.00m,  122.50MB  read      Socket  errors:  connect  0,  read  1,  write  0,  timeout  0   Requests/sec:        301.36   Transfer/sec:        696.77KB Phoenix Rails  w/  Puma ॾ৚݅͋ΔͷͰߟ࡯͸ࣗݾ੹೚Ͱɻ
    1IPFOJY
    ͕ൺֱͯ͠଎͍ͷ͸ؒҧ ͍ͳͦ͞͏
    
26. ΄͔
    •  &MJYJS
    ຊ൪Քಇ࣮੷
    – υϦίϜ͞Μɺ%"6
    ສͷ
    "E
    ͷ
    "1*
    •  GBMPPENBSV
    &MJYJS
    ͷ
    (SBQF
    •  IUUQXXXTMJEFTIBSFOFUPISTIJCVZBFYFMJYJS
    •  1IPFOJY
    ͷ
    $IBOOFM
    – ઀ଓ
    ܰྔϓϩηεͰॲཧ͢Δϝοηʔδ ϋϯυϥ
    •  8FC
    4PDLFU
    
27. ྑ͍͜ͱ͹͔Γݴ͍·͕ͨ͠ŋŋŋ
    •  ฒߦੑೳ͕ߴ͍ɺԠ౴ੑೳ͕ྑ͍ͱ͸ݴ͕ͬͨʮܭࢉ͕ ଎͍ʯͱ͸ݴͬͯͳ͍
    –  1IPFOJY
    ελοΫ͸
    3BJMT
    ΑΓ͸଎͍ɺ͚Ͳ΋
    –  ಈతܕ෇͚ݴޠͰ͢͠
    –  ˞ҰԠ
    )J1&
    ʹ͢Δͱ଎͘͸ͳΔ΋Α͏
    •  ؔ਺ܕݴޠͱͯ͠͸ͦ͜·ͰߴػೳͰ͸ͳ͍
    •  ݸਓతͳ࿩
    େن໛ӡ༻ͯ͠ͳ͍ͷͰ
    $POT
    ΛޠΔʹ ஌ݟ଍Γͳ͍
    •  &MJYJS
    ྲྀߦΔ͔͸·ͩະ஌਺
    –  ϓϩμΫγϣϯ౤ೖࣄྫ͸·ͩ͜Ε͔Β
    
28. લฤॻ͖·ͨ͠ɻ
    ޙฤ͸࣍߸Ͱ
    
30. ׬