Umhlahlandlela othuthukisiwe wokuthuthukisa ukubambezeleka kwewebhu emhlabeni jikelele

Informatec Digital » Izinsiza » Umhlahlandlela othuthukisiwe wokuthuthukisa ukubambezeleka kwewebhu emhlabeni jikelele

La ukubambezeleka kwewebhu Sekuyinto ebaluleke kakhulu empumelelweni yanoma yimuphi umsebenzi we-inthanethi onethrafikhi yamazwe ngamazwe. Asikhulumi nje ngokuthi ikhasi lilayisha ngokushesha noma kancane: ama-millisecond ambalwa engeziwe ngesikhathi sokuphendula angasho ukuguqulwa okumbalwa, ukushiywa okwengeziwe, kanye nolwazi olubi kakhulu lomsebenzisi, ikakhulukazi lapho izivakashi zixhumana ezivela emazweni ahlukene.

Uma uphatha uhlelo lokusebenza lomhlaba wonke noma iwebhusayithi, ukwenza ngcono ukubambezeleka kuhilela ukulungisa kahle kakhulu ukwakheka kokusingatha, imizila yenethiwekhi, ukugcinwa kwesikhashana, kanye nezinqubo. Kuzo ukuletha ikhompyutha kanye nedatha eduze komsebenzisi, nqamula ama-hops angadingekile endleleni, sebenzisa kahle i-cache futhi uthembele kubuchwepheshe besimanje (HTTP/2, HTTP/3, TLS 1.3, QUIC) ukuze isicelo ngasinye sithathe isikhathi esincane ngangokunokwenzeka ukuqeda, ngisho nasezimweni zomthwalo omkhulu noma amanethiwekhi eselula angazinzile.

Izinsika eziyisisekelo zokwenza ngcono ukubambezeleka kwewebhu

Isiqalo sokunciphisa ukubambezeleka ukuqonda ukuthi kunezimbalwa Izinsika ezibalulekile: ibanga elingokoqobo, i-CDN, ukugcinwa kwesikhashana, izinqubo zesimanje, kanye nokuqaphaUma lezi zindawo ezinhlanu zixazululwa ngesikhathi esisodwa, ijubane lokusebenza livame ukubonakala kakhulu, ikakhulukazi kumasayithi anezithameli zomhlaba wonke.

Ngakolunye uhlangothi, kufanele ukuletha amaseva eduze kwabasebenzisi Lokhu kuhilela ukufaka ingqalasizinda ezindaweni eziseduze nesidingo sangempela; kanye nokusebenzisa inethiwekhi yokulethwa kokuqukethwe (i-CDN) ukuletha izimpahla ezimile onqenqemeni lwenethiwekhi. Konke lokhu kuhambisana namasu okugcina idatha aklanywe ngokucophelela kuseva kanye nesiphequluli, ukwamukelwa kwezinqubo zamanje (i-HTTP/2, i-HTTP/3, i-TLS 1.3, i-QUIC), kanye nohlelo lokuqapha oluqhubekayo olulinganisa i-TTFB, umzila, kanye nolwazi lomsebenzisi.

Ukubambezeleka kuvame ukulinganiswa ku- ama-millisecond njenge-KPI eqinile Lokhu kuhlukaniswe ngama-metrics afana nesikhathi kuya ku-byte yokuqala (TTFB), isikhathi sokubuya nokubuya (RTT), kanye nesikhathi sokuphendula kweseva. Ukuqapha lezi zinkomba ngezwe, idivayisi, kanye nohlobo lokuxhumeka kubalulekile ukuthola ukuthi lawo ma-millisecond alahleka kuphi, okube sekuhumusha kube yimali engenayo encane kanye nokukhungatheka okukhulu kubasebenzisi.

Ibanga, umzila, kanye nokuxhumana: umngcele ongokoqobo

Noma ngabe ingqalasizinda iyinkimbinkimbi kangakanani, Ibanga elingokomzimba lihlala liyisivikelo esinamandla kakhuluIjubane lokukhanya ezintanjeni ze-fiber optic linomkhawulo ongeke udlule; ngakho-ke, ikhilomitha ngalinye elengeziwe phakathi komsebenzisi neseva lengeza isikhathi. Yingakho kubaluleke kakhulu ukunciphisa ukuphambuka komzila, ukunciphisa inani lama-hops, nokuthembela kumanethiwekhi anezilinganiso ezinhle zokuxhumeka.

Amanethiwekhi axhunywe kahle kuma-node amakhulu e-inthanethi avumela idatha ukuthi... ukuma okuphakathi okumbalwaLokhu kuholela ngqo ekubenimbezeleka okuphansi, ukujitha okuncane, kanye nokulahlekelwa okuncane kwephakethe. Ukwandisa i-bandwidth kuyasiza, kodwa akuhlanganisi umzila omubi: i-topology eklanywe kahle kanye namabanga amafushane ngokuvamile kunikeza intuthuko enkulu kakhulu kunokwandisa i-bandwidth.

Kumaphrojekthi asatshalaliswe emazwenikazi amaningana, kubalulekile ukuhlanganisa ibanga elincane, imizila esezingeni eliphezulu kanye nengqalasizinda eseduze kubabukeli abaqondiwe. Lokhu kufezwa ngokukhetha okuhle kwabahlinzeki benethiwekhi, izivumelwano ezifanele zokuhlola, kanye nokubuyekezwa njalo kwemizila yokulandelela kanye nokuhlolwa kwe-ping phakathi kwezifunda ukuze kugwenywe imizila ekhuphukile noma izindlela eziphambeneyo ezingenangqondo.

Isu lokwakha iseva yomhlaba wonke kanye nokusabalalisa

Ukukhetha ukuthi uzowathola kuphi amaseva akuyona indaba yokucabanga nje, kodwa ukuhlaziya ngokucophelela ukusatshalaliswa kwangempela komsebenzisi, izidingo zomthetho, kanye namaphethini ethrafikhiUmkhuba ojwayelekile ukufaka izikhungo zedatha eYurophu, eMelika nase-Asia, kodwa ukulungisa izindawo ezithile ukuze ziqonde lapho ukuvakasha kugxile khona kanye nemithethonqubo yokuhlala kwedatha okumele ihlangatshezwe.

Isakhiwo esicatshangelwe kahle sihlanganisa izikhungo zedatha eziningi ezixhunywe ngamanethiwekhi omgogodla asheshayo Nge-DNS anycast kanye nokuhlolwa kwezempilo, ithrafikhi iqondiswa endaweni efanele nganoma yisiphi isikhathi. Lapho kusingathwa ama-spikes noma ukuhlukahluka okukhulu komthwalo, kufakwa ukulinganisela komthwalo wezwe, okuvumela amaseshini ukuthi agcinwe eduze nomsebenzisi ngenkathi kusatshalaliswa umthwalo womsebenzi ngokuhlakanipha.

Lolu hlobo lokusetshenziswa kwezifunda eziningi lwenza amaseshini asebenze kahle kakhulu. kuyahambisana, nokubambezeleka okuphansi kanye nokubekezelela amaphutha okuhleUma isifunda esisodwa sibhekene nezinkinga, ukwakheka kungathumela izicelo kwesinye ngaphandle kokuthi umsebenzisi abone ukungasebenzi isikhathi eside, kugcinwe isevisi ebushelelezi ngisho noma kwenzeka izehlakalo noma ukulungiswa okuhleliwe.

I-CDN: ingxenye ebalulekile yokusebenza okuphelele

Inethiwekhi yokulethwa kokuqukethwe (i-CDN) iyadingeka kakhulu uma usesha ukusebenza okuphelele ngokuqukethwe okungaguqukiI-CDN igcina amakhophi ezithombe, amashidi ezitayela, izikripthi, kanye nezinye izimpahla ezindaweni eziningi zokubonakala (ama-POP) ezisatshalaliswa emhlabeni wonke, okunciphisa kakhulu indlela phakathi komsebenzisi nokuqukethwe.

Ngaphezu kokukhonza amafayela kusukela emaphethelweni, ukucushwa okuhle kwe-CDN kuvumela chaza imithetho yenqolobane eyinkimbinkimbi kakhulungezilungiselelo zesikhathi sokuphila (TTL) ezilungiswe ngohlobo lwefayela, i-intelligence cache bypass yezenzo ezenziwe ngokwezifiso, kanye nokuziphatha okuthile kwama-API noma izinsiza ezibucayi. Ezimweni eziningi, umsebenzi "wokucindezela" noma iziphakamiso zokulayisha kusengaphambili zisetshenziselwa ukuqinisekisa ukuthi izinto ezibalulekile zifika kusiphequluli ngokushesha.

Kumaphrojekthi anethrafikhi enkulu noma esakazeke kakhulu, abahlinzeki abaningana bangahlanganiswa neyodwa isu le-multi-CDNNgokusebenzisa amandla esifunda senethiwekhi ngayinye nokuthola ukungasebenzi kahle uma kwenzeka ukwehluleka, isevisi eqhubekayo iyagcinwa ngisho noma inethiwekhi ethile ihlangabezana nokuphazamiseka, okunciphisa kakhulu ingozi yokuphazamiseka emizileni ethile.

Ukucushwa kweseva, amaphrothokholi esimanje, kanye nokucindezelwa

Isendlalelo seseva kanye nephrothokholi kungenye indawo lapho ama-millisecond amaningi angasuswa khona uma ehlelwe ngokuhlakanipha. I-HTTP/2 kanye ne-TLS 1.3Ukusebenzisa i-OCSP ukuhlanganisa nokulungisa ukubekwa phambili kwezinsiza kuqinisekisa ukuthi izimpahla ezibaluleke kakhulu ziyathululwa kuqala nokuthi ukuxhawulana kwezokuphepha kuqedwa ngesikhathi esincane.

Ukusetshenziswa kwe Okusheshayo/HTTP/3 Lokhu kunenzuzo ikakhulukazi kumanethiwekhi alahlekelwe yiphakethe, njengokuxhumeka kweselula, njengoba ukubuyiselwa kwamaphutha nokubuyiselwa kokuxhumeka kusebenza kahle kakhulu kune-TCP yakudala. Ukugcina ukuxhumana bukhoma ngamapharamitha afanele e-Keep-Alive nokusebenzisa kabusha ukuxhumana kunciphisa izindleko zokusungula ukuxhawulana okusha kwesicelo ngasinye.

Ezingeni leseva yangaphakathi, kuyalulekwa ukususa amamojula angadingekileLungiselela izintambo namachibi abasebenzi, sebenzisa izindlela ze-I/O ezisebenza kahle (i-epoll, i-kqueue), bese ukhetha ama-suites e-TLS cipher anamuhla alinganisela ukuphepha nokusebenza. Ekucindezelweni, i-Brotli ivame ukusetshenziselwa amafayela angaguquki kanye ne-Gzip yezimpendulo ezishintshashintshayo, okuhloswe ukunciphisa ama-byte adluliselwe ngaphandle kokwehlisa ikhwalithi yezithombe noma ezinye izinsiza ezibucayi.

Amasu okugcina isikhashana kweseva nesiphequluli

Ukugcina isikhashana kungenye yamathuluzi anamandla kakhulu okunciphisa ukubambezeleka, uma nje kulawulwa ngesu elicacile. Ngasohlangothini lweseva, ungakwazi ukusheshisa ikhodi kanye nokusetshenziswa kwethempulethi ukusebenzisa i-OPcache ye-PHP, ukulondoloza izingcezu ze-HTML ku-RAM, kanye nokusebenzisa ama-accelerator e-HTTP afana nalawa I-Varnish ukukhonza amakhasi agcinwe nge-cached ngesivinini esimangalisayo.

Uma izingxenye ezithile zekhasi kuphela kudingeka zibe namandla, amasu anjengokuthi uhlangothi olunqenqemeni luhlanganisa (ESI) noma i-AJAX icela ukulayisha izingcezu ezenziwe ngokwezifiso kuphela, igcine okunye kugcinwe kunqolobane. Kusiphequluli, kubalulekile ukuphatha kahle izihloko ze-Cache-Control, ETag, Last-Modified, kanye ne-TTL eziqondene nohlobo ngalunye lwefa, ukuqinisekisa ukuthi ukuvakasha kokuqala kuyashesha futhi ukuvakasha okulandelayo kushesha nakakhulu.

Ama-header angaguquki kanye namagama wamafayela aguquliwe ane-content-hashed avimbela ukungqubuzana nezinguqulo ezindala kanye nokunikezwa izikhathi zokulayisha ezingaphansi kwesekhondi Ekuvakasheleni izinsiza eziningi njalo, i-cache elungiselelwe kahle inciphisa umthwalo kuseva yokuqala, ifinyeze i-RTT esebenzayo, futhi inikeze umsebenzisi umuzwa wokushesha, ikakhulukazi emakhasini avakashelwa njalo.

I-DNS elungiselelwe kanye nokulungiswa kwamagama okusheshayo

Ngokuvamile kuyanganakwa, kodwa Umbuzo wokuqala we-DNS usetha ijubane lokuqala. kokulayishwa kwewebhusayithi. Sebenzisa amaseva agunyaziwe asheshayoKungcono nge-anycast, ifinyeza izikhathi zokufuna amagama futhi inciphise amathuba okuba nezinkinga kulesi sigaba.

Kungumkhuba omuhle nciphisa inani lezizinda zangaphandle Kuhilelekile ekhasini, ngoba ngayinye ingadinga imibuzo eyengeziwe ye-DNS. Ukubukeza izintambo zokuxazulula, ukunika amandla i-DNSSEC ngaphandle kokufaka imali eningi, kanye nokuchaza ama-TTL afanele ezimpendulo kusiza ukugcina izikhathi ze-DNS ziphansi futhi zizinzile, okuthinta ngqo i-TTFB.

Kuzinhlelo zokusebenza ezikhiqiza ama-subdomain amaningi aguquguqukayo, umuntu angaphendukela ku- amasu e-wildcard ukunciphisa ukudalwa okuqhubekayo kwamagama amasha, ngaleyo ndlela kuncishiswe ingcindezi kuma-resolver futhi kugwenywe ukubambezeleka okungalindelekile kulesi sigaba sokuqala somjikelezo womthwalo.

Ukuthuthukiswa kwenethiwekhi ezindaweni zamafu

Efwini, ukusebenza kwenethiwekhi kuncike kokubili ekucushweni kwepulatifomu kanye nezinqumo zokwakha. Izici ezifana nalezi Ukuxhumana Okusheshisiwe (kwabanye abahlinzeki) kuvumela amaphakethe ukuthi asebenzise indlela yedatha eqondile kakhulu ku-interface yenethiwekhi ebonakalayo, kunciphisa i-overhead yendiza yokulawula kanye nokunciphisa ukubambezeleka.

Ukusetshenziswa kwamasu anjenge-Receive Side Scaling (RSS) kusabalalisa umthwalo wenethiwekhi kuma-core amaningi e-CPU, okuwusizo kakhulu lapho kuphathwa amazinga aphezulu okusebenzisa amaphakethe. Kubalulekile futhi. sondeza imishini ebonakalayo ndawonye kusetshenziswa amaqembu okubekwa kokusondelana, kunciphisa ukubambezeleka phakathi kwezinhlelo zokusebenza, ama-cache, kanye nezizindalwazi ngaphakathi kwesifunda esifanayo.

Ukukhethwa kwezifunda zamafu akufanele kucabangele nje ukusondela kumsebenzisi wokugcina kodwa futhi ikhwalithi yokuxhumana phakathi kwezifundaUkulinganisa ngezikhathi ezithile ukubambezeleka kwezifunda kanye nokuyihlanganisa nemithetho yokulinganisa ngokuzenzakalela kusiza ukudonsa ukwanda kwethrafikhi ngaphandle kokwandisa ukubambezeleka noma ukugcwala kwezixhumanisi zangaphakathi.

I-Edge computing kanye nokuxhumana okuqondile

I-Edge computing idlula i-CDN yakudala ngokususa ingxenye yayo. i-logic yebhizinisi emaphethelweni enethiwekhiIzinto ezifana nokuguqulwa kwesithombe, ukuhlolwa kwe-A/B, ukuhlolwa kokuqinisekiswa kwangaphambi kwesikhathi, noma ukuqinisekiswa okulula kungasebenza ngqo kuma-POP, ngaphandle kwesidingo sokuya kuseva yokuqala kusicelo ngasinye.

Le ndlela inomthelela othile ezinhlelweni zokusebenza lapho ama-millisecond ebaluleke khona ngempela, njengokuthi imidlalo eku-inthanethi, i-IoT, noma ukusakaza bukhomaNgokunciphisa indlela yokuya nokubuya, ukuphendula kuyathuthuka futhi ukuhlukahluka kwenethiwekhi obekuyobonakala kakhulu kumsebenzisi wokugcina kuyalungiswa.

Ngaphezu kwalokho, ukuxoxisana ngezivumelwano zokuhlola ngqo noma ukusebenzisa i-Internet Neutral Points (IX) kuvumela finyelela amanethiwekhi amakhulu ngaphandle kwezindlela eziphambukayoukunciphisa i-jitter kanye nokulahleka kwamaphakethe. Kwamanye amaphrojekthi, ukukhetha izixazululo ezizinikele zokubamba ama-edge kungaba yindlela ecacile yokunciphisa izikhathi zokuphendula ezifundeni eziningi.

Ukuqapha, izilinganiso, kanye nokuhlolwa komthwalo

Ngaphandle kokulinganisa, akunakwenzeka ukwazi ukuthi izinguquko zengqalasizinda empeleni ziyathuthukisa ukubambezeleka. Yingakho ukuqapha kubalulekile. I-TTFB, Inkomba Yesivinini, i-CLS, i-FID kanye nezinye izindlela zokusebenza ezihlukanisa indawo, idivayisi kanye nohlobo lokuxhumeka, ukuze kuboniswe ulwazi lwangempela lomsebenzisi.

Ukuhlanganisa idatha yomsebenzisi wangempela (i-RUM) nokuhlolwa kokwenziwa okuqalwe emazweni ahlukene kunikeza umbono ophelele wokuziphatha kwewebhusayithi. Izindlela zokulandelela zisiza ukubona ngeso lengqondo ukukhuphuka komzila, kuyilapho izivivinyo zokwenziwa... ukulahleka kwephakethe kanye nokushaqeka Banikeza ulwazi ngekhwalithi yamanethiwekhi eselula noma izixhumanisi ezithile.

Ukuhlolwa komthwalo ngaphambi kokuqaliswa okukhulu noma imikhankaso kubalulekile ukuqinisekisa ukuziphatha kwezinqolobane, izizindalwazi, kanye nemigqa yenethiwekhi ngaphansi kwengcindezi. Ukusetha izexwayiso ngokusekelwe kuma-SLO (Izinhloso Zezinga Lenkonzo) kanye nokuphatha isabelomali sephutha lokubambezeleka kuvumela... sabela kusenesikhathingaphambi kokuba inkinga ibe ukungasebenzi kahle okusabalele noma ukulahlekelwa okukhulu kokusebenza.

Ukusondela, ukuphindaphindwa, kanye nokuvumelana kudathabheyisi

Isendlalelo sedatha sivame ukuba ngesinye sezindawo ezibaluleke kakhulu lapho uzama ukunciphisa ukubambezeleka okuphelele. Isu elivamile ukuletha funda amakhophi ezifundeni zabasebenzisiukuze i-RTT yemibuzo incishiswe kakhulu, kuyilapho kugcinwa i-node eyinhloko ecacile yokubhala.

Izakhiwo ezisabalaliswe emhlabeni jikelele zivame ukusebenzisa amaphethini Funda-Kwasendaweni / Bhala-Kuwo Wonke UmhlabaUkubhuka ukucushwa kwe-multi-master kuphela ezimweni ezithile lapho ukuxazululwa kwengxabano kuklanywe ngokucophelela (isibonelo, kusetshenziswa izakhiwo ze-CRDT). Ukuchaza isabelomali sokubambezeleka sezindlela zokuzinikela kuvimbela ukumangala njengoba uhlelo lokusebenza lukhula ngobunzima.

Ukuze kuthuthukiswe ukusebenza kahle, amachibi okuxhumana asetshenziselwa ukugwema ukukhokha izindleko ze-TCP/TLS kumbuzo ngamunye; ayagcinwa ama-hotsset agcinwe kumemori Futhi amaphethini "okuxoxa" (imibuzo eminingi emincane ehlanganiswe ndawonye) ancishiswa ngokufaka izicelo ngamaqoqo. Izinkinobho ze-Idempotency ziwusizo ekuzameni kabusha ngaphandle kokuphinda imisebenzi, ukugcina idatha ehambisanayo kanye nezindlela ezingabikezelwa.

Umklamo we-API kanye nokwenza ngcono i-front-end

Ukwakheka kwama-API kubaluleke kakhulu njengengqalasizinda. Ukunciphisa uhambo oluya nokubuya kusho ukuthi ukuhlanganisa ama-endpoints Ukuqinisekisa ukuthi ucingo olulodwa lubuyisa yonke idatha edingekayo, sebenzisa i-HTTP/2 multiplexing bese wehlisa inani lokuxhumeka kwe-TCP/TLS okufana ngokukuhlanganisa ngaphansi kwezitifiketi nama-SAN afanele.

Ukuqhekeka ngokweqile ezizindeni eziningi kungaphula ukubekwa phambili kwezinsizakusebenza futhi kube kubi kakhulu ukusetshenziswa kabusha koxhumano, ngakho-ke ngokuvamile kungcono... gxila ithrafikhi emithonjeni embalwa futhi uthembele ezindleleni zokulayisha kusengaphambili kanye nezinto eziza kuqala. Ukucindezela izimpendulo ze-JSON nge-Brotli, ukususa amasimu angabalulekile ku-interface, nokusebenzisa izibuyekezo ze-delta esikhundleni sezimpendulo ezigcwele nakho kunciphisa kakhulu ivolumu yedatha.

Engxenyeni engaphambili, amasu anjengo I-CSS Ebucayi emugqeni, ukulayisha kusengaphambili komthombo (ukuxhuma kusengaphambili/ukulayisha kusengaphambili) kanye ukumuncwa okuqhubekayo Ukusebenza "kobuvila" kweJavaScript kuvumela ingxenye ebonakalayo yekhasi (ngaphezu kokugoqwa) ukuthi ivele ngokushesha kakhulu, kuyilapho okunye kuqedwa ngaphandle kokunciphisa ijubane lokuxhumana kokuqala komsebenzisi.

Amanethiwekhi eselula, i-QUIC kanye nokulawula ukuminyana

Ukuxhumana kweselula kwethula ezinye izinselele: Ama-RTT aphezulu, ukuguquguquka okuqhubekayo, kanye nokulahleka kwephaketheYilapho i-QUIC/HTTP/3 iqala khona ukusebenza, ithuthukisa ukubuyiselwa kwamaphutha futhi izivumelanise kangcono nezinguquko zenethiwekhi, njenge Shintsha kusuka kudatha yeselula uye ku-Wi-Fi ngaphandle kokuphinda uvuselele uxhumano ngokuphelele.

Kusendlalelo se-TLS, ukuqaliswa kabusha kweseshini ku-TLS 1.3 kunciphisa izindleko zokuxhawulana okusha, futhi ukusetshenziswa ngokuhlakanipha kwe-0-RTT kunganciphisa kakhulu ukubambezeleka kokuqala uma izingozi zokuphinda zihlolwe futhi zincishisiwe. Ngasohlangothini lweseva, ama-algorithms angahlolwa ukulawula ukuminyana okufana ne-BBR vs CUBIC, ukukhetha leyo efanelana kahle nokulahleka kanye nephethini yokubambezeleka kwezilaleli zangempela.

Ukugcwalisa konke lokhu nge-JavaScript ehlehlisiwe, ukulayisha izithombe ngokunganaki, kanye neziphakamiso ezibalulekile kusiza ukwenza ukuxhumana kokuqala kumadivayisi eselula kusheshe kakhulu. Ezimweni lapho i-TCP Fast Open ivinjiwe, ukusetshenziswa kabusha kokuxhumeka kanye nokuphelelwa isikhathi eside kusiza ekunciphiseni ukuthuthumela futhi kugweme ukuxhawulana okwengeziwe okwengeza kuphela ekubambezelekeni.

Amamodeli okuvuselela i-cache kanye nokungasebenzi

Ukubambezeleka kwangempela okuzwakala ngumsebenzisi kuya phezulu noma phansi kuye ngokuthi ama-hits e-cacheUkuze kulawulwe kahle ubusha bedatha, kusetshenziswa iziqondiso ezifana ne-stale-while-revalidate kanye ne-stale-if-error, ezivumela ukukhonza okuqukethwe okuphelelwe yisikhathi ngenkathi kubuyekezwa ngemuva noma lapho umthombo ungafinyeleleki okwesikhashana.

Izinkinobho zokudlulisela zenza kube lula ukuhlanza ngesihloko noma ngeqembu lezinsiza esikhundleni se-URL ngayinye, futhi ukuhlanza okuthambile kuvumela ama-cache ukuthi agcinwe "eshisa" ngenkathi evuselelwa. Okunye okuwusizo yilokhu: izingobo zomlando ezingalungile zamaphutha angu-404/410ukuvimbela izicelo eziphindaphindwayo zokuqukethwe okungekho ukuthi zibuyiselwe emthonjeni ngokuphindaphindiwe.

Uma kwenzeka ama-API, kuyinto evamile ukusebenza ngezihluthulelo ze-cache ezicabangela ulimi, isifunda, noma ezinye izinhlaka ezifanele, zisebenzisa ama-header e-Vary kancane futhi zithembele ku-ETag/If-None-Match ukuze zithande izimpendulo ezilula ezingu-304. Konke lokhu kusiza ukugwema iziphepho ze-cache ngesikhathi sokufakwa, kugcina izikhathi zokuphendula ezizinzile ngisho nalapho kukhishwa izinguqulo ezintsha.

Ukuphepha komphetho ngaphandle kokulahlekelwa isivinini

Ukuphepha akudingeki kungqubuzane nokubambezeleka uma kuklanywe kahle. Imisebenzi yokunikeza imisebenzi yangaphandle efana Ukuvikelwa kwe-WAF, i-DDoS kanye nokunciphisa amazinga Isendlalelo somphetho sivumela ithrafikhi enonya ukuthi imiswe eduze kakhulu nomsuka wesicelo, ilayishe umsebenzi kumaseva amakhulu futhi igcine imizila yebhizinisi ihlanzekile.

Kubalulekile ukubeka imithetho yokuphepha phambili ukuze kuqalwe ukuhlolwa okushibhile (nge-IP, i-ASN, indawo, noma amasignesha alula). Ezingeni le-TLS, okulandelayo kufanele kusetshenziswe: ama-cipher anamuhla, ama-HSTS kanye ne-OCSP stapling engaguqukiNgaphezu kokuhlela ukujikeleziswa kwezitifiketi kahle ukuze kungabangela ukungasebenzi noma ukwanda kokulibaziseka.

Izinhlelo zokuphatha ama-bot ezisekelwe ekunyathelisweni kweminwe okulula kanye nezinselele zokuzivumelanisa nezimo zingasebenza ngezindleko ezincane uma zisetshenziswa emaphethelweni. Umphumela uba ukuvikelwa okuthuthukisiwe okunomthelela omncane esikhathini sokuphendula, okugcina imvelaphi iphephile kakhulu ngisho nangesikhathi sokuhlaselwa noma ithrafikhi engavamile.

Ukubuka okuthuthukisiwe kanye nesabelomali samaphutha

Ukulawula indawo enjalo esakazekile, ukubonwa kwe-Edge, i-CDN kanye ne-OriginUkusetshenziswa kwama-standard trace headers (isb., traceparent) kanye nezihlonzi zokuxhumanisa ezijwayelekile kulo lonke uchungechunge kwenza kube lula ukulandelela isicelo kusukela ekuqaleni kuze kube sekugcineni bese uthola ukuthi i-latency ifakwa kuphi.

Ukuhlanganisa idatha yangempela yokuphequlula nezilinganiso zesikhathi sezinsiza, ezihlukaniswe ngamaphesenti (P50, P95, P99) futhi zahlukaniswa ngokwemakethe namadivayisi, kuvumela chaza ama-SLO okubambezeleka athileKusukela lapho, kungasungulwa isabelomali samaphutha esicacile ukusiza ukubeka phambili imisebenzi yokwenza ngcono ngokusekelwe emthonjeni wayo wangempela.

Ukusampula okuguquguqukayo kuyasiza ekubambeni idatha eyengeziwe ezindaweni ezishisayo ngaphandle kokulayisha ngokweqile izinhlelo zokubhalisa, kuyilapho ukuhlolwa okuqhubekayo kwe-blackhole kanye ne-jitter kusiza ekutholeni ukuphambuka komzila kusenesikhathi. Lokhu kulungisa izimbangela zezinkinga, hhayi izimpawu nje kuphela, kuqondise imizamo yokwenza ngcono lapho zidingeka khona kakhulu.

Izindleko, ukwakheka, kanye nenzuzo yokusebenza

Konke lokhu kusetshenziswa kobuchwepheshe kumele kube nomqondo kwezomnotho. Ukuthuthukisa izinga ama-hits e-cache Akugcini nje ngokunciphisa ukubambezeleka, kodwa futhi kunciphisa izindleko zokuphuma kanye nethrafikhi eya emthonjeni. Kumamodeli amaningi okukhokha asekelwe kumaphesenti angama-95, isu elihle lokulondoloza idatha kanye nethrafikhi enqenqemeni lenza umehluko omkhulu ebhilini lenyanga.

Ukuxhumana kwezifunda eziningi kunciphisa ukubambezeleka, kodwa kwandisa izindleko. ukugcinwa kwedatha kanye nokukopishwa kwayoNgakho-ke, kuyalulekwa ukuchaza imithetho ecacile: uhlobo lokuqukethwe okufanele lube semaphethelweni (olungaguquki, oluguquguqukayo, olugcinwa kalula) kanye nokuthi yiluphi ulwazi olubucayi noma imibhalo ebucayi okufanele igcinwe iphakathi, kuncishiswe ukwanda kwamakhophi.

Ukufakwa kwe-deployments okunengozi ephansi kuncike ekucushweni njengekhodi, izinguqulo ze-canary, kanye nokubuyiselwa emuva okuzenzakalelayo, kanye nezinqubo zokufudumeza ukuze kugwenywe ama-cache abandayo ezinguqulweni ezintsha. Ngale ndlela, ukusebenza kugcinwa ngenkathi ukwakheka kushintsha ngaphandle kwezimanga ezingathandeki.

Ukuthobela imithetho kanye nezindawo zokuhlala zedatha

Imithethonqubo yokuvikela idatha ithinta ngqo ukwakheka komzila weseva kanye nezindawo. Kuvamile ukuthi umthetho udinge ukuthi okuthile idatha yomuntu siqu ihlala esifundeni okuvela kuzo, okuphoqa ukuthi zicutshungulwe endaweni noma zibizwe ngegama elingesilo iqiniso ngaphambi kokuba ziye kwezinye izindawo kunethiwekhi.

Uma indawo ingaphansi kwemingcele, ithrafikhi ivame ukuhanjiswa nge-POPs yendawo, igcina ukubambezeleka okunengqondo ngenkathi ihlonipha imithethonqubo. Hlukanisa ngokucacile i-telemetry yobuchwepheshe ku- idatha ekhomba umsebenzisi Kuyasiza ukuhlangabezana nezidingo zomthetho ngaphandle kokulahla ukubonakala okudingekayo ukuze kuthuthukiswe ukusebenza.

Ukuphatha lezi zindawo kanye nokugeleza kwedatha ngempumelelo kuvumela ukugcina ibhalansi phakathi kwezinhloso. ukubambezeleka, ubumfihlo, kanye nokutholakalaLokhu kuyinto eqhubeka ikhathaza ukuhlolwa kwamabhuku kanye nokwethenjwa abasebenzisi abanakho kuhlelo lokusebenza noma isevisi.

Izilungiselelo zomzila nge-anycast kanye ne-BGP

Ukuze bathole okuningi ngokusebenza kwenethiwekhi yomhlaba wonke, abahlinzeki abaningi namaphrojekthi athuthukile basebenzisa i-anycast ihlanganiswe ne-BGPUkukhangisa ikheli elifanayo le-IP kusuka ezindaweni eziningi kuvumela ithrafikhi ukuthi idluliselwe ngokuzenzakalelayo endaweni eseduze (ngokombono wenethiwekhi), kodwa ngezinye izikhathi lokho kuziphatha kudinga ukulungiswa.

Ngemiphakathi ye-BGP kanye namasu afana nokulungiselela indlela ye-AS ekhethiwe, kungenzeka lungisa imisebenzi engafuneki noma ukulayisha izindawo ezishisayo ngokuqondisa kabusha ithrafikhi ethile ezindaweni ezihlukile. Ngaphezu kwalokho, ukuqinisekiswa kwe-RPKI kunezela ungqimba lokuvikela ekubanjweni kwemizila, okubangela izinkinga zokubambezeleka kanye nokuzinza.

Ezimweni ezithile ezimbi kakhulu, isifunda sichazwa ngokucacile lapho ukuzinza kweseshini kubhekwa njengokubaluleke kakhulu kunendlela emfushane kakhulu. Umgomo wokugcina ukuba nemizila ephindaphindwayo ene-jitter ephansi kanye nokuziphatha okubikezelwayo ngisho nasezimweni zokwehluleka kwenethiwekhi okuyingxenye.

Ukuqhathaniswa komhlinzeki kanye nenqubo yokukhetha

Uma ukhetha iphrojekthi yamazwe ngamazwe, kufanele ubheke ngale kwentengo. Izici ezifana nalezi ukuba khona komhlaba wonke, ikhwalithi yehadiwe, kanye nokuhambisana nama-CDN ahlanganisiwe Zinesisindo esikhulu uma kukhulunywa ngokufinyelela isikhathi esifushane sokulethwa kuzo zonke izifunda lapho kunabasebenzisi khona.

Kufanelekile futhi ukubukeza ngokucophelela amaphrofayili okubuka, izinqubomgomo zokuqondisa, izici zokuqapha, kanye nokulula kokuhlanganisa ama-load balancers, ukuhlolwa kwezempilo, kanye nezinketho zezifunda eziningi. Isitoreji se-SSD, ama-CPU anamandla, kanye nokusekelwa okuhle kwe-HTTP/2 kanye ne-HTTP/3 Bavame ukunikeza imiphumela engcono kakhulu ekubambezelekeni ngaphansi komthwalo.

Esinye isici esibalulekile ukuguquguquka kwenkontileka, ukwesekwa kwe-IPv6, ukufinyelela kuma-API okuzenzakalelayo kokufakwa kanye nokufuduka, kanye namakhasi esimo acacile. Konke lokhu kwenza kube lula izinguquko zesikhathi esizayo, kunciphisa izingozi ngesikhathi sokukhuphuka kwethrafikhi noma ukungasebenzi kwesifunda, futhi kusiza ukugcina ukusebenza okubikezelwayo ngisho noma iphrojekthi ikhula ngokushesha.

Ngalo lonke lolu hlu lwamasu—kusukela ekusondeleni ngokomzimba kanye nokusetshenziswa okujulile kwama-CDN kanye ne-edge computing, kuya ekwakhiweni kwe-API okulungisiwe kahle, ukuphathwa kwe-cache, ukuphepha kwe-edge, kanye nokubuka okuthuthukisiwe—kungenzeka ukwakha ukwakheka okuqinile okugcina Ukubambezeleka kuyalawulwa, izindleko ezilawulwayo, kanye nezinga eliphezulu kakhulu lolwazi lomsebenzisi ngezinga lomhlaba wonke, ngisho nalapho isidingo sikhuphuka kakhulu noma izimo zenethiwekhi zingaphansi kwezindinganiso ezifanele.