Mount Mayhem at Netflix : Scaling Containers kan bi CPUw kan
Miiri k’a filɛ, i b’a ɲini ka diɲɛ ɲɛnajɛ dɔ labɛn, yɔrɔ min na, jikuru bɛɛ ye ɲɛnajɛ ye min ɲɔgɔn tɛ, min bɛ a yɛrɛ la, nka ɲɛnajɛ sira bɛ to ka Changé, waati tɛ se ka fɔ, wa i bɛ lajɛbaga miliyɔn caman sɔrɔ minnu b’a fɛ ka fɛn bɛɛ lajɛ. Nin ye gɛlɛya ye min bɛ Netflix kan don o don. I n’a fɔ a ye tutigɛbaga ye mikrosɛrɛsiw jɔcogo la, Netflix bɛ baarakɛminɛn suguya ba caman baara, u kelen-kelen bɛɛ bɛ pake kɔnɔ ani ka bila sen kan i n’a fɔ minɛn. San caman kɔnɔ, ka nin mansamara min bɛ minɛn kɔnɔ, o bonya ka ɲɛ, o kɛra baaraba ye, "Mount Mayhem" min ye orchestre, nafolo tila-tila, ani baarakɛcogo labɛnni ye, o bɛɛ bɛ bi CPUw ka dugukoloko gɛlɛnw sanfɛ, minnu kɔnɔna ka ca.
Konteyna gɛlɛya : Densi ni baarakɛcogo
Sankaba-sɔrɔ-baara suguya bɛɛ laɲini ye density (dansi) caman ye : ka minɛn caman boli farikolo-ɲɛnajɛ-sɛbɛn kelen kan walasa ka fɛnɲɛnamafagalanw baara ka caya ani ka musakaw dɔgɔya. Nka, o density ɲinini in bɛ ɲɔgɔn sɔsɔ ni baarakɛcogo magow ye. Bi CPUw, n’u ka jateden kolomaw ka bon ani u ka cache hierarchies gɛlɛnw, olu bɛ gɛlɛya layɛrɛ kura don sen kan. Ni minɛn tan ni caman bɛ ɲɔgɔn sɔrɔ nafolo jɛlenw na i n’a fɔ CPU ka cakɛdaw ani hakilijagabɔ-minɛnw, o nɔ bɛ se ka kɛ "sigiɲɔgɔn mankanba" gɛlɛyaw ye, yɔrɔ min na minɛn kelen min tɛ taamacogo jugu ye, o bɛ se ka minɛn tɔw bɛɛ ka baarakɛcogo tiɲɛ masin kan. Scaling tɛ dɔrɔn ka misali caman daminɛ; o ye ka ɲɛsin fɛnɲɛnamafagalanw ka sinfoni gɛlɛnw ɲɛnabɔli ma walasa ka baarakɛcogo basigilen sabati diɲɛ lamɛnbagaw bolo .
Kulu ladonni : Netflix ka baarakɛminɛnw CPU baarakɛcogo ɲuman kama
Walisa ka se sɔrɔ nin "Mount Mayhem" in kan, Netflix injiniyɛriw ye fɛɛrɛ caman tigɛ minnu bɛ tɛmɛn kosɛbɛ minɛnw bolodacogo jɔnjɔnw kan. U ka fɛɛrɛ ye masterclass ye granular resource management la, ka leveraging technology minnu jɔlen bɛ Linux kernel kɔnɔ ani u yɛrɛ ka orchestration layers kɔnɔ. U ka fɛɛrɛ in kunba ye k’a faamuya ko CPU kɔnɔko tɛ baarakɛcogo nɔgɔman dɔrɔn ye. U bɛ u sinsin yɔrɔ koloma damadɔw kan :
- CPU Pinning : Ka minɛn kɛrɛnkɛrɛnnenw di CPU cores kɛrɛnkɛrɛnnenw ma walasa ka contexte-switching overhead dɔgɔya ani ka cache locality ɲɛ .
- doni balansi : minɛnw baara doni tilatilali ni hakilitigiya ye kooriw kɔnɔ walasa kɔnɔbara kelen si kana kɛ buteli kɔnɔ .
- Tɛnkanw ɲɛnabɔcogo : fɛnɲɛnamafagalanw tigɛcogo ɲɛnabɔli walasa u kana baarakɛcogo kɔrɔlenw tiɲɛ minnu bɛ baarakɛlaw ɲɛnabɔ baarakɛminɛnw na .
- Kasɛti dɔnni : Minɛnw bolodacogo ni CPU ka kasɛti jɔcogo dɔnni ye, ka baarabolodalenw fara ɲɔgɔn kan walasa ka cakɛda sɔrɔli caya .
Nin fɛɛrɛko baara jugu in de b'a to Netflix bɛ se ka wideyow lase abonɛn miliyɔn 200 ni kɔ ma waati kelen na, ka bɔnɛko minnu bɛ se ka kɛ, olu tigɛli ka kɛ baarakɛcogo ɲuman misali ye.
Orkɛsi kunba : gɛlɛya don jagokɛlaw bɛɛ bolo
K’a sɔrɔ Netflix bɛ baara kɛ ni hakɛba ye, nafolomafɛnw labɛnni nafama gɛlɛya jɔnjɔn bɛ bɛn jago suguya bɛɛ ma min bɛ bi, modulu architectures ta. Gɛlɛya tɛ minɛnw yɛrɛ dɔrɔn na, nka ɲɛnabɔli-yɔrɔ de la min b’a latigɛ u bɛ boli yɔrɔ min na, u bɛ sɛgɛsɛgɛli kɛ cogo min na, ani u bɛ ɲɔgɔn sɔrɔ cogo min na. Nin yɔrɔ in de la kalan minnu bɛ sɔrɔ Netflix ka "Mount Mayhem" la, olu bɛ kɛ diɲɛ bɛɛ kɔnɔ. Jagokɛlaw mago bɛ bi baarakɛcogo la min bɛ se ka nin gɛlɛya in ɲɛnabɔ k’a sɔrɔ a ma SREw ka kulu dɔ wajibiya min bɛ diɲɛ seleke naani kɔnɔ. U mago bɛ kɛnɛ kan min bɛ CPU bolodacogo ni nafolo maracogo gɛlɛya dɔgɔmanw bɔ kɛnɛ kan, k’a to ekipuw k’u sinsin u ka baarakɛminɛnw jɔli n’u bilali kan.
yeye"Sankaba jatebɔ jiginni bɛ ka sɛgɛsɛgɛli gɛlɛya wuli ka bɔ masin virtuwɛliw dicogo dɔrɔn na ka taa baarakɛcogo labɛnni hakili la kernel nivo la. O ye dɔn gɛlɛn ye application logic ni hardware sekow cɛ."
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I man kan ka kɛ Netflix ye walasa ka nafa sɔrɔ orchestre barikama la . I mana kɛ microservices bolomafaraw la wo, walima SaaS platform gɛlɛn dɔ, scaling nafama sariyakolow bɛ to kelen ye. Jago OS modulari i n’a fɔ Mewayz dabɔra walasa ka o baarakɛ doni ninnu ɲɛnabɔ. Ni Mewayz ye sigida kelen di walasa ka fɛnw bila senkan, ka kɔlɔsili kɛ, ani ka u yɛrɛ sɛgɛsɛgɛ, o bɛ sira di yiriwali jɛkuluw ma u k’u ka nafolo ɲininiw n’u ka baarakɛcogo sariyaw ɲɛfɔ, k’a sɔrɔ sistɛmu bɛ gɛlɛya basigilenw ɲɛnabɔ. O b’a to i ka baarakɛminɛnw bɛ baara kɛ ka ɲɛ bi fɛnɲɛnɛmaw kan, k’i yɛrɛ tanga "sɔgɔɲɔgɔn mankanba" nɔ ma ani ka baarakɛcogo basigilen mara, o bɛɛ kɛra k’a sɔrɔ i ka kulu ma kɛ Linux kernel scheduling dɔnbagaw ye. A kunba ye, Mewayz b’i dɛmɛ k’i ka baarakɛminɛnw sɛgɛsɛgɛ minnu bɛ minɛn kɔnɔ ni dannaya ye, k’i yɛrɛ ka seko ni dɔnko "Mount Mayhem" tigɛli kɛ baarakɛcogo ye min bɛ taa ɲɛ.
