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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
Kazuhiko Yamashita
November 05, 2018
Programming
1
360
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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Transcript
ʙ͋Εͬʁ࡞ऀɾɾɾ͋Εͬʁʁʁฤʙ !QZBNB(.01FQBCP *OD 3VCZ8PVME$POGFSFODF OHY@NSVCZWʹ͓͚Δ ϊϯϒϩοΩϯάͳNSVCZ࣮ߦͷ ࣮ৄࡉ
γχΞɾϓϦϯγύϧΤϯδχΞ ࢁԼ!QZBNB ϗεςΟϯάࣄۀ෦νʔϑςΫχΧϧϦʔυ IUUQTUFOTOBQPODPN
ϗεςΟϯάࣄۀ &$ࢧԉࣄۀ ϋϯυϝΠυɾͦͷଞࣄۀ
ϩϦϙοϓʂϨϯλϧαʔόαʔϏεఏڙ։࢝ ϔςϜϧαʔϏεఏڙ։࢝ 1ࢁ͕ϖύϘʹೖࣾʂʂ̍ ݄ ࣛࣇౡݝग़ਫࢢʹ͓͍ͯ1ࢁരʂʂ̍
ݱࡏɾۀ ϜʔϜʔυϝΠϯαʔϏεఏڙ։࢝
45/4 -JOVY/444FSWFS TUOTKQ
45/4
ࠓ͢͜ͱ wOHY@NSVCZ wOHJOYͷجຊ wOHY@NSVCZWͷ՝ wOHY@NSVCZWʹ͓͚ΔϊϯϒϩοΩϯάॲཧ
લఏ wOHJOYͷΠϕϯτϞδϡʔϧFQPMMલఏͰ͠·͢ w3VCZͷΛ͠·͕͢ɺ3VCZߏจͷ͋·Γग़͖ͯ ·ͤΜ
OHY@NSVCZ "'BTUBOE.FNPSZ&⒏DJFOU8FC4FSWFS&YUFOTJPO.FDIBOJTN 6TJOH4DSJQUJOH-BOHVBHFNSVCZGPSOHJOY IUUQOHYNSVCZPSH
OHY@NSVCZWʹίϯτϦϏϡʔτ
None
OHY@NSVCZ NSVCZ@TTM@IBOETIBLF@IBOEMFS@DPEF TTMOHJOY44-OFX DFSUJpDBUF@EBUB'JMFSFBE QBUIUP\TTMTFSWFSOBNF^DSU LFZ@EBUB'JMFSFBE QBUIUP\TTMTFSWFSOBNF^LFZ TTMDFSUJpDBUF@EBUBDFSUJpDBUF@EBUB
TTMDFSUJpDBUF@LFZ@EBUBLFZ@EBUB OHJOYͷ͋ΒΏΔΠϕϯτʹϑοΫͯ͠ɺNSVCZͷίʔυΛ࣮ߦ͠ɺ ϓϥΨϒϧʹτϥϑΟοΫίϯτϩʔϧग़དྷΔ
ϖύϘͷࣄྫ ಈతূ໌ॻཧ ඦສυϝΠϯͷূ໌ॻΛ.Z42-Ͱཧ ίϯςϯπΩϟογϡ ΩϟογϡϙϦγʔΛ)551"1*ܦ༝Ͱऔಘ͠ɺOHJOYͷ Ωϟογϡͷ0/ɾ0''Λίϯτϩʔϧ
OHJOY NSVCZ
Πϕϯτۦಈ ඇಉظ*0 OHJOY
Πϕϯτۦಈ OHJOY FQPMM FWFOU FWFOU FWFOU DMJFOU DMJFOU DMJFOU BDDFQU
BDDFQU BDDFQU FQPMM@XBJU ଓϨεϙϯεΛ*0Πϕϯτͱͯ͠ॲཧ͢Δ IUUQTMJOVYKNPTEOKQIUNM-%1@NBOQBHFTNBOFQPMM@XBJUIUNM
ඇಉظ*0શͯϑΝΠϧͰ͋Δ OHJOY FQPMM FWFOU FWFOU FWFOU DMJFOU DMJFOU DMJFOU BDDFQU
BDDFQU BDDFQU FQPMM@XBJU ϑΝΠϧσΟεΫϦϓλͦΕͧΕΛϒϩοΫͤͣ FQPMMͰඇಉظʹ*0ॲཧΛߦ͏ GE GE GE
OHJOYXPSLFS OHJOY FQPMM FWFOU FWFOU FWFOU DMJFOU DMJFOU DMJFOU BDDFQU
BDDFQU BDDFQU FQPMM@XBJU ΫϥΠΞϯτ͔ΒͷϦΫΤετXPSLFS͕ॲཧ XPSLFS XPSLFS NBTUFS FQPMM@XBJU
OHY@NSVCZ OHJOY FQPMM FWFOU FWFOU FWFOU DMJFOU DMJFOU DMJFOU BDDFQU
BDDFQU BDDFQU FQPMM@XBJU )551ϦΫΤετ࣌ͷNSVCZ࣮ߦXPSLFSͰߦΘΕΔ XPSLFS XPSLFS NBTUFS MPDBUJPOIFBEFST\ NSVCZ@DPOUFOU@IBOEMFS@DPEF SOHJOY3FRVFTUOFX SDPOUFOU@UZQFUFYUIUNM OHJOYSQVUTIFBEFST\SIFBEFST@JOBMM^CSCS ^
OHY@NSVCZͷ՝ SFRVFTU SFRVFTU SFRVFTU NSVCZ NSVCZ NSVCZ SFTQPOTF SFTQPOTF SFTQPOTF
XPSLFS XPSLFS͋ͨΓͷNSVCZ࣮ߦͰඇಉظ*0͕ϒϩοΫ͞ΕΔ
ࠓͷओ SFRVFTU SFRVFTU SFRVFTU NSVCZ NSVCZ NSVCZ SFTQPOTF SFTQPOTF SFTQPOTF
XPSLFS ͜͏ͳͬͨʂʂ͍̍ͯ͏Λ͠·͢
Ϧιʔε͕͏·͘׆༻Ͱ͖ͳ͍έʔε container.boot! loop do break if container.boot? sleep 1000 end
OHY@NSVCZ͔ΒίϯςφϓϩηεΛىಈ͠ɺ ىಈྃΛTMFFQͰͭΑ͋͘Δॲཧ
՝Λղܾ͢ΔϊϯϒϩοΩϯάΠϯλʔϑΣʔε /HJOY"TZODTMFFQ /HJOY"TZOD)551TVC@SFRVFTU
/HJOY"TZODTMFFQ
/HJOY"TZODTMFFQ SFRVFTU SFRVFTU NSVCZ SFTQPOTF SFTQPOTF MPPQEP CSFBLJGDPOUBJOFSCPPU
/HJOY"TZODTMFFQ FOE NSVCZ TMFFQ TMFFQ࣌ʹNSVCZͷϒϩοΫΛ։์͢Δ
/HJOY"TZODTMFFQ wOHYFWFOUMPPQ wOHY@BEE@UJNFS w'JCFS
OHJOYFWFOUMPPQ pOEUJNFS FQPMM@XBJU FYFDFWFOU IBOEMFS FYFDUJNFS IBOEMFS ۙͰൃՐ͢ΔλΠϚʔΛ୳͢ *0ΠϕϯτΛͭ *0ΠϕϯτͷϋϯυϥΛ࣮ߦ͢Δ
λΠϚʔͷϋϯυϥΛ࣮ߦ͢Δ
OHJOYFWFOUIBOEMFS wOHJOYͰFWFOUʹIBOEMFSΛఆٛग़དྷΔ wUJNFSͷIBOEMFSίʔϧόοΫͷΑ͏ͳΠϝʔδ wϢʔβʔͷҙͷΦϒδΣΫτΛ֨ೲɺऔΓग़͢͜ͱ ͕Մೳ
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@TUBUFͳͲ3VCZͷใΛอ࣋͠ɺ IBOEMFS࣮ߦ࣌ʹऔΓग़͠ɺ3VCZΛ࣮ߦ͢Δ
3VCZͷίϯςΩετͲ͏ͳΔ͔ʁ puts "1" Nginx::Async.sleep 1000 puts "2" /HJOY"TZODTMFFQ͕࣮ߦ͞Εɺ QVUT͕࣮ߦ͞Εͯ͠·͏ ˠ3VCZͷॲཧΛఀࢭ͢Δඞཁ͕͋Δ
'JCFS
'JCFS fiber = Fiber.new { puts 'Ruby is' Fiber.yield puts
'Good' } fiber.resume fiber.resume ͍ΘΏΔίϧʔνϯͰɺ'JCFSZJFMEͷ࣌Ͱ ॲཧΛఀࢭͤ͞Δ͜ͱ͕ग़དྷΔɻ 'JCFSSFTVNFʹΑͬͯॲཧΛ࠶։
3VCZJT (PPE
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'JCFSͰ҉తʹแΉ
OHY@NSVCZ'JCFS *NBHF EFG@OHY@NSC@QSFQBSF@pCFS OHJOY@IBOEMFS pCFS@IBOEMFS'JCFSOFX\OHJOY@IBOEMFSDBMM^ MBNCEBEP SFTVMUpCFS@IBOEMFSSFTVNF <pCFS@IBOEMFSBMJWF SFTVMU>
FOE FOE 'JCFSΛ͞Βʹ1SPDͰแΉ
/HJOY"TZODTMFFQ class Async class << self def sleep(*args) __sleep(*args) Fiber.yield
end end end @@TMFFQ UJNFS࡞Δϝιου Ͱ 'JCMFSΠϯελϯεΛ$ͷίϯςΩετʹ อଘ͠ɺOHJOYͷλΠϚʔϋϯυϥʔʹઃఆޙɺ 'JCFSZJFMEͰ3VCZΛఀࢭ
OHY@BEE@UJNFS OHY@NSVCZ@UJNFS @IBOEFS 'JCFSZJFME 'JCFSSFTVNF 'JCFSΦϒδΣΫτΛίʔϧόοΫؔͷϙΠϯλͱڞʹ λΠϚʔʹηοτ λΠϚʔηοτ࣌Ͱ3VCZͷίϯςΩετΛఀࢭ͠ɺOHJOYͷ ΠϕϯτϧʔϓΛ࠶։ λΠϚʔΠϕϯτൃՐ࣌ʹ࣮ߦ͞ΕɺλΠϚʔΠϕϯτ͔Β
3VCZͷίϯςΩετΛऔΓग़͢ 3VCZͷ࣮ߦΛ࠶։͢Δ /HJOY"TZOD4MFFQ
/HJOY"TZOD)551TVC@SFRVFTU
OHY@IUUQ@TVCSFRVFTU location / { # subrequest } location /subreqest {
puts "hello" } # http://localhost/ => hello ͋ΔϩέʔγϣϯʹདྷͨϦΫΤετΛ ଞͷϩέʔγϣϯʹϦΫΤετͨ݁͠ՌͰ Ԡ͢ΔΑ͏ͳ͍ํ
SFRVFTU SFRVFTU NSVCZ SFTQPOTF SFTQPOTF NSVCZ ϦΫΤετΛ͛ΔͱϒϩοΫΛ։์͠ɺ Ϩεϙϯε࣌ʹίʔϧόοΫΛड͚औΓ࠶։ TVCSFRFTU 3FRVFTU
3FTQPOTF /HJOY"TZOD)551TVC@SFRVFTU
/HJOY"TZOD)551TVC@SFRVFTU3FEJT location / { # subrequest /redis } location /redis
{ puts redis get key } 3FEJTͷϦΫΤετͪ࣌ؒ ֎෦"1*ΛOHY@NSVCZͰ࣮ߦ͢Δ Α͋͘Δέʔε
/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
/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
/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@Uߏମ˞͔Β αϒϦΫΤετͷϨεϙϯεϘσΟϔομ͕औಘͰ͖ͳ͍ ˞֤ΠϕϯτͰ࣋ͪճΒΕΔɺϦΫΤετͷใ
XBJUJOHTVCSFRVFTU pOBMJ[FCPEZpMUFS /HJOY"TZOD)551TVC@SFRVFTU NBJOSFRVFTU OHY@IUUQ@SFRVFTU@U TVCSFRVFTU OHY@IUUQ@SFRVFTU@U PUIFSFWFOU OHY@IUUQ@SFRVFTU@UNBJO pOJTISFRVFTU
NSVCZ αϒϦΫΤετͷϨεϙϯεɺϝΠϯϦΫΤετͷ ώʔϓʹॻ͍ͯ͋͛Δඞཁ͕͋Δ
/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 '; } Ϩεϙϯεͷड͚औΓϝΠϯϦΫΤετͷ(FUUFSΛ௨ͯ͠ɺ αϒϦΫΤετ͕ॻ͍ͨώʔϓͷΛऔಘ
ੑೳධՁ
IUUQTICNBUTVNPUPSKQFOUSZ
ଌఆڥ w.BD#PPL1SP.JE w$16()[*OUFM$PSFJ w.FNPSZ(# w7JSUVBM#PY w$16$PSF w.FNPSZ(# w046CVOUV9FOJBM
TMFFQNTFD SFUVSO MPDBUJPO" CMPDLJOH IUUQSFRVFTU MPDBUJPO# OPOCMPDLJOH IUUQSFRVFTU BC $
ab -n 10000 -c 100 http://127.0.0.1:58080/ PSJHJOʹ)551ϦΫΤετ͢Δڥ IUUQSFRVFTU IUUQSFRVFTU
OPOCMPDLJOH͕ഒఔߴͰ͋Δ CMPDLJOHIUUQSFRVFTU OPOCMPDLJOHIUUQSFRVFTU 3FRVFTUTQFSTFDPOE<TFD> NFBO 5JNFQFSSFRVFTU<NT> 5JNFQFSSFRVFTU<NT> 5SBOTGFSSBUF<,CZUFTTFD>SFDFJWFE 3FRVFTUTQFSTFDPOE<TFD>
NFBO 5JNFQFSSFRVFTU<NT> 5JNFQFSSFRVFTU<NT> 5SBOTGFSSBUF<,CZUFTTFD>SFDFJWFE
࠷ޙʹ
NSVCZ࠷ߴʂʂ̍ NSVCZʹΑͬͯΤϯδχΞͱͯ͠ɺ Ұஈਂ͘જΕΔΑ͏ʹͳͬͨ
5IBOLZPV ࠷৽ͷ࠾༻ใΛνΣοΫˠ !QC@SFDSVJU