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ngx_mruby v2における ノンブロッキングなmruby実行の実装詳細

ngx_mruby v2における ノンブロッキングなmruby実行の実装詳細

RubyWouldConference2018にてngx_mruby v2のノンブロッキングインターフェースについてトークしました。

Kazuhiko Yamashita

November 05, 2018
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  1. 

  2. Πϕϯτۦಈ OHJOY FQPMM FWFOU FWFOU FWFOU DMJFOU DMJFOU DMJFOU BDDFQU

    BDDFQU BDDFQU FQPMM@XBJU  ઀ଓ΍ϨεϙϯεΛ*0Πϕϯτͱͯ͠ॲཧ͢Δ IUUQTMJOVYKNPTEOKQIUNM-%1@NBOQBHFTNBOFQPMM@XBJUIUNM
  3. ඇಉظ*0શͯ͸ϑΝΠϧͰ͋Δ OHJOY FQPMM FWFOU FWFOU FWFOU DMJFOU DMJFOU DMJFOU BDDFQU

    BDDFQU BDDFQU FQPMM@XBJU  ϑΝΠϧσΟεΫϦϓλͦΕͧΕΛϒϩοΫͤͣ FQPMMͰඇಉظʹ*0ॲཧΛߦ͏ GE GE GE
  4. OHJOYXPSLFS OHJOY FQPMM FWFOU FWFOU FWFOU DMJFOU DMJFOU DMJFOU BDDFQU

    BDDFQU BDDFQU FQPMM@XBJU  ΫϥΠΞϯτ͔ΒͷϦΫΤετ͸XPSLFS͕ॲཧ XPSLFS XPSLFS NBTUFS FQPMM@XBJU 
  5. OHY@NSVCZ OHJOY FQPMM FWFOU FWFOU FWFOU DMJFOU DMJFOU DMJFOU BDDFQU

    BDDFQU BDDFQU FQPMM@XBJU  )551ϦΫΤετ࣌ͷNSVCZ࣮ߦ΋XPSLFSͰߦΘΕΔ XPSLFS XPSLFS NBTUFS MPDBUJPOIFBEFST\ NSVCZ@DPOUFOU@IBOEMFS@DPEF SOHJOY3FRVFTUOFX SDPOUFOU@UZQFUFYUIUNM OHJOYSQVUTIFBEFST\SIFBEFST@JOBMM^CSCS  ^
  6. OHY@NSVCZͷ՝୊ SFRVFTU SFRVFTU SFRVFTU NSVCZ NSVCZ NSVCZ SFTQPOTF SFTQPOTF SFTQPOTF

    XPSLFS XPSLFS͋ͨΓͷNSVCZ࣮ߦͰඇಉظ*0͕ϒϩοΫ͞ΕΔ
  7. Ϧιʔε͕͏·͘׆༻Ͱ͖ͳ͍έʔε container.boot! loop do break if container.boot? sleep 1000 end

    OHY@NSVCZ͔ΒίϯςφϓϩηεΛىಈ͠ɺ ىಈ׬ྃΛTMFFQͰ଴ͭΑ͋͘Δॲཧ
  8. /HJOY"TZODTMFFQ SFRVFTU SFRVFTU NSVCZ SFTQPOTF SFTQPOTF MPPQEP  CSFBLJGDPOUBJOFSCPPU 

     /HJOY"TZODTMFFQ FOE NSVCZ TMFFQ TMFFQ࣌ʹNSVCZͷϒϩοΫΛ։์͢Δ
  9. OHY@BEE@UJNFS ev = (ngx_event_t *)p; ev->handler = ngx_mrb_timer_handler; ev->data =

    re; ngx_add_timer(ev, (ngx_msec_t)timer); FWEBUBʹNSC@TUBUFͳͲ3VCZͷ৘ใΛอ࣋͠ɺ IBOEMFS࣮ߦ࣌ʹऔΓग़͠ɺ3VCZΛ࣮ߦ͢Δ
  10. 'JCFS fiber = Fiber.new { puts 'Ruby is' Fiber.yield puts

    'Good' } fiber.resume fiber.resume ͍ΘΏΔίϧʔνϯͰɺ'JCFSZJFMEͷ࣌఺Ͱ ॲཧΛఀࢭͤ͞Δ͜ͱ͕ग़དྷΔɻ 'JCFSSFTVNFʹΑͬͯॲཧΛ࠶։
  11. OHY@NSVCZ'JCFS *NBHF MPDBUJPOIFBEFST\ NSVCZ@DPOUFOU@IBOEMFS@DPEF QVUT /HJOY"TZODTMFFQ QVUT  ^ MPDBUJPOIFBEFST\

    NSVCZ@DPOUFOU@IBOEMFS@DPEF 'JCFSOFXEP QVUT /HJOY"TZODTMFFQ QVUT FOE  3VCZͷίʔυΛ'JCFSͰ҉໧తʹแΉ
  12. /HJOY"TZODTMFFQ class Async class << self def sleep(*args) __sleep(*args) Fiber.yield

    end end end @@TMFFQ UJNFS࡞Δϝιου ಺Ͱ 'JCMFSΠϯελϯεΛ$ͷίϯςΩετʹ อଘ͠ɺOHJOYͷλΠϚʔϋϯυϥʔʹઃఆޙɺ 'JCFSZJFMEͰ3VCZΛఀࢭ
  13. OHY@IUUQ@TVCSFRVFTU location / { # subrequest } location /subreqest {

    puts "hello" } # http://localhost/ => hello ͋ΔϩέʔγϣϯʹདྷͨϦΫΤετΛ ଞͷϩέʔγϣϯʹϦΫΤετͨ݁͠ՌͰ Ԡ౴͢ΔΑ͏ͳ࢖͍ํ
  14. /HJOY"TZOD)551TVC@SFRVFTU3FEJT location / { # subrequest /redis } location /redis

    { puts redis get key } 3FEJTͷϦΫΤετ଴ͪ࣌ؒ΍ ֎෦"1*ΛOHY@NSVCZͰ࣮ߦ͢Δ Α͋͘Δέʔε
  15. /HJOY"TZOD)551TVC@SFRVFTU def sub_request(location, query_param = nil) if query_param.is_a?(Hash) __sub_request(location, ::nginx::Utils....)

    elsif query_param.is_a?(String) __sub_request(location, query_param) elsea __sub_request(location) end Fiber.yield end TMFFQͱಉ͘͡ɺ@@TVC@SFRVFTUͰ ίʔϧόοΫΛઃఆ͠ɺ'JCFSZJFME
  16. /HJOY"TZOD)551TVC@SFRVFTU ps->handler = ngx_mrb_async_http_sub_request_done; ps->data = actx; if (ngx_http_subrequest(r, actx->uri,

    args, &sr, ps, NGX_HTTP_SUBREQUEST_IN_MEMORY) != NGX_OK) { mrb_raise(mrb, E_RUNTIME_ERROR, "ngx_http_subrequest failed for http_sub_rquest method"); } ίʔϧόοΫΛઃఆ͠ɺαϒϦΫΤετΛ࣮ߦ͢Δ
  17. /HJOY"TZOD)551TVC@SFRVFTU static ngx_int_t ngx_mrb_async_http_sub_request_done(ngx_http_request_t *sr, void *data, ngx_int_t rc) {

    ngx_mrb_async_http_ctx_t *actx = data; ngx_mrb_reentrant_t *re = actx->re; ngx_http_mruby_ctx_t *ctx; re->r = sr->parent; ... ίʔϧόοΫͰฦ٫͞ΕΔOHY@IUUQ@SFRVFTU@Uߏ଄ମ˞͔Β͸ αϒϦΫΤετͷϨεϙϯεϘσΟ΍ϔομ͕औಘͰ͖ͳ͍ ˞֤ΠϕϯτͰ࣋ͪճΒΕΔɺϦΫΤετͷ৘ใ
  18. /HJOY"TZOD)551TVC@SFRVFTU location /async_http_sub_request { mruby_rewrite_handler_code ' Nginx::Async::HTTP.sub_request "/sub_req_dst" res =

    Nginx::Async::HTTP.last_response nginx.rputs res.body '; } Ϩεϙϯεͷड͚औΓ͸ϝΠϯϦΫΤετͷ(FUUFSΛ௨ͯ͠ɺ αϒϦΫΤετ͕ॻ͍ͨώʔϓͷ஋Λऔಘ
  19. TMFFQNTFD SFUVSO MPDBUJPO" CMPDLJOH IUUQSFRVFTU MPDBUJPO# OPOCMPDLJOH IUUQSFRVFTU BC $

    ab -n 10000 -c 100 http://127.0.0.1:58080/ PSJHJOʹ)551ϦΫΤετ͢Δ؀ڥ IUUQSFRVFTU IUUQSFRVFTU