Izindlela zokuqukethwe azifundeki noma ake sithi ukusho okuthile mayelana ne-CDN

Umusho wokuzihlangula:
Lesi sihloko asinalo ulwazi obekade lungaziwa ngabafundi abajwayelene nomqondo we-CDN, kodwa lusesimweni sokubuyekezwa kobuchwepheshe.

Ikhasi lewebhu lokuqala lavela ngo-1990 futhi lalingamabhayithi ambalwa nje ngosayizi. Kusukela lapho, okuqukethwe kuye kwakala kokubili ngokwekhwalithi nangokomthamo. Ukuthuthukiswa kwe-IT ecosystem kuholele ekutheni amakhasi ewebhu esimanje akalwa ngama-megabytes futhi umkhuba obheke ekwandeni komkhawulokudonsa wenethiwekhi uqina kuphela unyaka nonyaka. Abahlinzeki bokuqukethwe bangakwazi kanjani ukumboza izikali ezinkulu zendawo futhi banikeze abasebenzisi yonke indawo ngesivinini esiphezulu sokufinyelela olwazini? Amanethiwekhi okulethwa nokusabalalisa okuqukethwe, aziwa nangokuthi Inethiwekhi Yokulethwa Kokuqukethwe noma i-CDN nje, kufanele abhekane nale misebenzi.

Kunokuqukethwe okwengeziwe “okusindayo” ku-inthanethi. Ngesikhathi esifanayo, ucwaningo oluningi lubonisa ukuthi abasebenzisi abafuni ukubhekana nezinsizakalo zewebhu uma bethatha isikhathi eside kunamasekhondi angu-4-5 ukulayisha. Ijubane eliphansi kakhulu lokulayisha isayithi ligcwele ukulahlekelwa izethameli, okuzoholela ekwehleni kwethrafikhi, ukuguqulwa, ngakho-ke inzuzo. Amanethiwekhi okulethwa kokuqukethwe (ama-CDN), ngokombono, aqeda lezi zinkinga nemiphumela yazo. Kodwa empeleni, njengenjwayelo, yonke into inqunywa ngemininingwane kanye nama-nuances wecala elithile, lapho kukhona inala kule ndawo.

Uvelaphi umqondo wokusatshalaliswa kwamanethiwekhi?

Ake siqale ngohambo olufushane lomlando nezincazelo zamagama. I-CDN inethiwekhi yeqembu lemishini yeseva etholakala ezindaweni ezahlukahlukene ukuze inikeze ukufinyelela kokuqukethwe kwe-inthanethi okumboza inani elikhulu labasebenzisi. Umqondo wamanethiwekhi asabalalisiwe uwukuba namaphoyinti ambalwa okuba khona (PoP) ngesikhathi esisodwa, atholakala ngaphandle kweseva yomthombo. Isistimu enjalo izocubungula izicelo eziningi ezingenayo ngokushesha, ikhulise impendulo kanye nesivinini sokudluliselwa kwanoma iyiphi idatha.

Inkinga yokuletha okuqukethwe kubasebenzisi iphakame kakhulu ekuthuthukisweni kwe-Intanethi, i.e. phakathi nawo-90s. Amaseva angaleso sikhathi, ukusebenza kwawo akuzange kufinyelele ngisho namakhompyutha aphathekayo esimanjemanje, awakwazanga ukumelana nomthwalo futhi awakwazanga ukumelana nokunyuka kwethrafikhi. I-Microsoft yachitha amakhulu ezigidi zamaRandi minyaka yonke ocwaningweni oluhlobene nomgwaqo omkhulu wolwazi (i-640 KB edumile evela ku-Bill Gates ifika ngokushesha engqondweni). Ukuze sixazulule lezi zinkinga, bekufanele sisebenzise i-caching hierarchical, sisuke kumamodemu siye ku-fiber optics, futhi sihlaziye i-topology yenethiwekhi ngokuningiliziwe. Lesi simo besifana nesitimela esidala, esigijima kujantshi futhi endleleni senziwe sakamuva ngazo zonke izindlela zokukhulisa isivinini.

Kakade ngasekupheleni kweminyaka engu-90, abanikazi bezingosi zewebhu baqaphela ukuthi ukunciphisa umthwalo nokuhlinzeka ngezicelo ezidingekayo, kwakudingeka basebenzise amaseva aphakathi. Lena yindlela ama-CDN okuqala avela ngayo, esabalalisa okuqukethwe okumile okuvela kumaseva ahlukene ahlakazeke ngokwezindawo emhlabeni jikelele. Cishe ngaso leso sikhathi, kwavela ibhizinisi elisekelwe kumanethiwekhi asabalalisiwe. Umhlinzeki omkhulu kunawo wonke (okungenani oyedwa kwabakhulu kunawo wonke) we-CDN emhlabeni, u-Akamai, waba iphayona kule ndawo, waqala uhambo lwakhe ngo-1998. Eminyakeni embalwa kamuva, i-CDN yanda, futhi imali engenayo evela ekulethweni kokuqukethwe kanye neminikelo yaba amashumi ezigidi zamaRandi nyanga zonke.

Namuhla sihlangana ne-CDN njalo uma siya ekhasini lezentengiso elinethrafikhi ephezulu noma sixhumana ezinkundleni zokuxhumana. Insizakalo ihlinzekwa ngabakwa-Amazon, Cloudflare, Akamai, kanye nabanye abahlinzeki abaningi bezizwe zonke. Ngaphezu kwalokho, izinkampani ezinkulu zivame ukusebenzisa ama-CDN azo, okubalethela izinzuzo eziningi ngesivinini kanye nekhwalithi yokulethwa kokuqukethwe. Uma i-Facebook ingenawo amanethiwekhi asabalalisa, kodwa yayinesiphakeli somsuka kuphela esitholakala e-United States, kungathatha isikhathi eside kakhulu ukulayisha iphrofayela yabasebenzisi baseMpumalanga Yurophu.

Amagama ambalwa mayelana ne-CDN nokusakaza

I-FutureSource Consulting ihlaziye imboni yomculo futhi yaphetha ngokuthi ngo-2023 inani lababhaliselwe ezinsizeni zokusakaza umculo lizofinyelela cishe ingxenye yebhiliyoni yabantu. Ngaphezu kwalokho, izinsiza zizothola ngaphezu kuka-90% wemali engenayo ngokusakazwa komsindo. Isimo esinevidiyo siyefana; amagama anjengokuthi masidlale, ikhonsathi eku-inthanethi kanye nesinema eku-inthanethi asevele agxilile kusichazamazwi esidumile. I-Apple, Google, YouTube nezinye izinkampani eziningi zinezinsizakalo zazo zokusakaza.

Esethulweni sayo sokuqala, i-CDN yasetshenziswa ngokuyinhloko kumasayithi anokuqukethwe okumile. I-Static ulwazi olungashintshi kuye ngezenzo zomsebenzisi, isikhathi nezinye izici, i.e. akwenziwa ngezifiso. Kodwa ukukhuphuka kokusakaza ividiyo nezinsizakalo zomsindo kwengeze elinye icala elivamile lokusebenzisa amanethiwekhi asabalalisiwe. Amaseva amaphakathi, atholakala eduze nezithameli eziqondiwe emhlabeni jikelele, akwenza kube nokwenzeka ukuhlinzeka ngokufinyelela okuzinzile kokuqukethwe ngezikhathi zomthwalo omkhulu, kuqedwe ukuntuleka kwezinkinga ze-inthanethi.

Kanjani lo msebenzi

Ingqikithi yawo wonke ama-CDN icishe ifane: sebenzisa abaxhumanisi ukuze ukwazi ukuletha okuqukethwe kumthengi wokugcina ngokushesha. Isebenza kanje: umsebenzisi uthumela isicelo sokulanda ifayela, itholwa iseva ye-CDN, eyenza ikholi yesikhathi esisodwa kuseva yasekuqaleni futhi inikeze okuqukethwe kumsebenzisi. Ngokuhambisana nalokhu, i-CDN igcina amafayela isikhathi esithile futhi icubungule zonke izicelo ezilandelayo kunqolobane yayo. Ngokuzithandela, bangakwazi futhi ukulayisha kuqala amafayela kusuka kuseva yomthombo, balungise isikhathi sokugcinwa kwenqolobane, bacindezele amafayela asindayo, nokunye okuningi. Esimeni esihle kakhulu, umsingathi udlulisela konke ukusakaza endaweni ye-CDN, esevele isebenzisa izinsiza zayo ukuletha okuqukethwe kubasebenzisi. Akusho ukuthi ukugcinwa kwesikhashana okuphumelelayo kolwazi, kanye nokusatshalaliswa kwezicelo hhayi kuseva eyodwa, kodwa kunethiwekhi, kuzoholela ekulayisheni okulinganiselwe kwethrafikhi.

Isici sesibili esibalulekile sokusebenza kwe-CDN ukuncishiswa kokubambezeleka ekudluliselweni kwedatha (eyaziwa nangokuthi i-RTT - isikhathi sokuya nokubuya). Ukusungula uxhumano lwe-TCP, ukulanda okuqukethwe kwemidiya, ifayela le-JS, ukuqala iseshini ye-TLS, konke lokhu kuncike ku-ping. Ngokusobala, lapho usondelana nomthombo, kulapho ungathola khona impendulo ngokushesha kuwo. Phela, ngisho nejubane lokukhanya linomkhawulo walo: mayelana ne-200 km / s nge-fiber optical. Lokhu kusho ukuthi ukusuka eMoscow kuya eWashington ukubambezeleka kuzoba mayelana ne-75 ms ku-RTT, futhi lokhu ngaphandle kwethonya lemishini ephakathi.

Ukuze uqonde kangcono ukuthi yiziphi izinkinga amanethiwekhi okusabalalisa okuqukethwe azixazululayo, nalu uhlu lwezixazululo zamanje:

• I-Google, i-Yandex, i-MaxCDN (sebenzisa ama-CDN amahhala ukusabalalisa imitapo yolwazi ye-JS, inamaphuzu angaphezu kuka-90 okuba khona emazweni amaningi omhlaba);
• I-Cloudinary, i-Cloudimage, i-Google (amasevisi okuthuthukisa iklayenti nemitapo yolwazi: izithombe, amavidiyo, amafonti, njll.);
• Jetpack, Incapsula, Swarmify, njll. (ukwenziwa kahle kwezinsiza ezinhlelweni zokuphatha okuqukethwe: i-bitrix, i-wordpress, njll.);
• I-CDNVideo, i-StackPath, i-NGENIX, i-Megafon (i-CDN yokusabalalisa okuqukethwe okumile, esetshenziswa njengamanethiwekhi ezinjongo ezijwayelekile);
• Imperva, Cloudflare (izixazululo zokusheshisa ukulayisha iwebhusayithi).

Izinhlobo ezi-3 zokuqala ze-CDN ohlwini ziklanyelwe ukudlulisa ingxenye kuphela yethrafikhi isuka kuseva enkulu. Ezingu-2 ezisele zisetshenziswa njengamaseva ababamba agcwele anokudluliswa okugcwele kweziteshi ezivela kumsingathi womthombo.

Ubani futhi yiziphi izinzuzo ubuchwepheshe obunikezayo?

Ngokombono, noma iyiphi iwebhusayithi ethengisa imikhiqizo/izinsizakalo zayo kumakhasimende ezinkampani noma abantu ngabanye (i-B2B noma i-B2C) ingazuza ngokusebenzisa i-CDN. Kubalulekile ukuthi izethameli zayo ezihlosiwe, i.e. isisekelo somsebenzisi besingaphandle kwendawo yabo. Kodwa noma ngabe lokhu akunjalo, amanethiwekhi okusabalalisa azosiza ngokulinganisa umthwalo wevolumu enkulu yokuqukethwe.

Akuyona imfihlo ukuthi imicu eyizinkulungwane ezimbalwa yanele ukuvala isiteshi seseva. Ngakho-ke, ukusabalalisa ukusakazwa kwevidiyo emphakathini jikelele kuzoholela ekwakhekeni kwebhodlela - umkhawulokudonsa wesiteshi se-inthanethi. Sibona into efanayo uma kunezithombe eziningi ezincane, ezingathungiwe kuwebhusayithi (ukubuka kuqala komkhiqizo, isibonelo). Iseva yomsuka isebenzisa uxhumo olulodwa lwe-TCP lapho icubungula noma iyiphi inombolo yezicelo, ezobeka umugqa kulayini. Ukwengeza i-CDN kwenza kube nesidingo sokusabalalisa izicelo ezizindeni eziningi futhi kusetshenziswe ukuxhumana okuningi kwe-TCP, kukhulula umthwalo wesiteshi. Futhi ifomula yokulibaziseka kohambo olubuyayo, ngisho nasezimeni ezidabukisa kakhulu, inikeza inani elingu-6-7 RRT futhi ithatha ifomu: TCP+TLS+DNS. Lokhu kuhlanganisa nokubambezeleka okuhlobene nokuvula isiteshi somsakazo ocingweni nokudlulisa isignali emibhoshongweni yamaseli.

Ngemva kokufingqa amandla obuchwepheshe bebhizinisi le-inthanethi, ochwepheshe bagqamisa amaphuzu alandelayo:

1. Ukukala kwengqalasizinda okusheshayo + umkhawulokudonsa owehlisiwe. Amaseva engeziwe = amaphuzu amaningi lapho ulwazi lugcinwa khona. Ngenxa yalokho, iphuzu elilodwa licubungula ithrafikhi encane ngeyunithi ngayinye yesikhathi, okusho ukuthi lingase libe nomphumela omncane. Ukwengeza, amathuluzi okuthuthukisa ayasebenza, akuvumela ukuthi ubhekane nemithwalo ephezulu ngaphandle kokumosha isikhathi.
2. I-ping encane. Sesikushilo ukuthi abantu abathandi ukulinda isikhathi eside kuyi-Internet. Ngakho-ke, i-ping ephezulu inomthelela emazingeni aphezulu okugxuma. Ukubambezeleka kungabangelwa izinkinga ngokucubungula idatha kuseva, ukusetshenziswa kwezinto ezindala, noma i-topology yenethiwekhi ecatshangwe kabi. Eziningi zalezi zinkinga zixazululwa kancane ngamanethiwekhi okusabalalisa okuqukethwe. Nakuba kubalulekile ukuqaphela lapha ukuthi inzuzo yangempela yokusebenzisa ubuchwepheshe izobonakala kuphela lapho "i-ping yomthengi" idlula i-80-90 ms, futhi leli ibanga ukusuka eMoscow ukuya eNew York.

   

3. Ukuphepha kwedatha. Ama-DDo (ukuhlaselwa kwegciwane le-Denial of Service) ahloselwe ukuphahlaza iseva ukuze athole inzuzo ethile. Iseva eyodwa isengozini enkulu yokuba sengozini yokuphepha kolwazi kunenethiwekhi esabalalisiwe (ukufaka ingqalasizinda yesiqhwaga njenge-CloudFlare akuwona umsebenzi olula). Ngenxa yokusetshenziswa kwezihlungi kanye nokusatshalaliswa okufanele kwezicelo kunethiwekhi, ungakwazi ukuvimbela kalula ubunzima obudalwe ngokuzenzisa ngokufinyelela kuthrafikhi esemthethweni.
4. Ukusabalalisa kokuqukethwe okusheshayo nemisebenzi eyengeziwe yesevisi. Ukusabalalisa amanani amakhulu olwazi kunethiwekhi yeseva kuzokwenza kube nokwenzeka ukudlulisa okunikezwayo kumthengi wokugcina. Futhi, awudingi ukubheka kude ukuthola izibonelo - khumbula nje i-Amazon ne-AliExpress.
5. Ikhono "lokufihla" izinkinga ngesayithi eliyinhloko. Asikho isidingo sokulinda kuze kube yilapho i-DNS ibuyekezwa; ungayidlulisela endaweni entsha futhi usabalalise okuqukethwe okugcinwe kunqolobane yangaphambilini. Lokhu nakho kungathuthukisa ukubekezelela amaphutha.

Silungise izinzuzo. Manje ake sibheke ukuthi yimaphi ama-niches azuzayo kulokhu.

Ibhizinisi lokukhangisa

Ukukhangisa injini yenqubekelaphambili. Ukuze injini ingashi, kufanele ilayishwe ngokusesilinganisweni. Ngakho-ke ibhizinisi lokukhangisa, elizama ukubhekana nezwe lanamuhla ledijithali, libhekene nezinkinga "zokuqukethwe okunzima". Imidiya enzima isho ukukhangisa kwe-multimedia (ikakhulukazi izibhengezo namavidiyo apopayi) adinga umkhawulokudonsa wenethiwekhi ophezulu. Iwebhusayithi ene-multimedia ithatha isikhathi eside ukulayisha futhi ingase ibe yiqhwa, ihlola amandla ezinzwa zabasebenzisi. Abantu abaningi bazilahla izinsiza ezinjalo ngisho nangaphambi kokuba balande lonke ulwazi olutholakalayo. Izinkampani zokukhangisa zingasebenzisa ama-CDN ukuxazulula lezi zinkinga.

Ukuthengisa

I-E-commerce idinga ukunweba njalo ukufakwa kwayo kwendawo. Elinye iphuzu elibalulekile ukulwa nezimbangi, okukhona inala kuzo zonke izingxenye zemakethe. Uma iwebhusayithi ingahlangabezani nezidingo zomsebenzisi (okuhlanganisa ukuthatha isikhathi eside ukulayisha), ngeke idume futhi ngeke ikwazi ukuletha ukuguqulwa okuphezulu okungaguquki. Ukusebenzisa i-CDN kufanele kufakazele inzuzo yayo ekusingatheni izicelo zedatha ezivela ezindaweni ezahlukene. Futhi, ukusatshalaliswa kwethrafikhi kuzosiza ukuvimbela ukukhuphuka kwethrafikhi kanye nokwehluleka kweseva okulandelayo.

Amapulatifomu anokuqukethwe kokuzijabulisa

Zonke izinhlobo zezinkundla zokuzijabulisa zifanelekile lapha, kusukela ekulandeni amamuvi nemidlalo kuye ekusakazeni amavidiyo. Naphezu kweqiniso lokuthi ubuchwepheshe busebenza ngedatha emile, idatha yokusakaza ingafinyelela kumsebenzisi ngokushesha ngokusebenzisa abaphindayo. Futhi, ukulondoloza imininingwane ye-CDN kuyinsindiso yabanikazi bamaphothali amakhulu - ukugcinwa kwe-multimedia.

Imidlalo eku-inthanethi

Imidlalo ye-inthanethi kufanele ibekwe esigabeni esihlukile. Uma ukukhangisa kudinga umkhawulokudonsa omkhulu, khona-ke amaphrojekthi aku-inthanethi adinga izinsiza kakhulu. Abahlinzeki babhekene nenkinga enezinhlangothi ezimbili: isivinini sokufinyelela kumaseva + ukuqinisekisa ukusebenza okuphezulu kwegeyimu ngezithombe ezinhle. I-CDN yemidlalo eku-inthanethi yithuba lokuba nalokho okubizwa “ngezindawo zokucindezela” lapho onjiniyela bangagcina khona imidlalo kumaseva aseduze nabasebenzisi. Lokhu kukuvumela ukuthi wehlise umthelela wesivinini sokufinyelela kuseva yoqobo, futhi ngenxa yalokho uqinisekise ukudlala okunethezekile yonke indawo.

Kungani i-CDN ingeyona i-panacea

Naphezu kwezinzuzo ezisobala, akuwona wonke umuntu futhi abalweli njalo ukwethula ubuchwepheshe ebhizinisini labo. Kungani kunjalo? Okudidayo ukuthi, okunye ukonakala kulandela izinzuzo, kanye namaphoyinti ambalwa ahlobene nokuthunyelwa kwenethiwekhi ayengezwa. Abathengisi bazokhuluma kahle ngazo zonke izinzuzo zobuchwepheshe, bakhohlwe ukusho ukuthi zonke ziba yize ezimweni eziningi. Uma sibheka ububi be-CDN ngemininingwane eyengeziwe, kufanelekile ukugqamisa:

• Sebenza kuphela ngama-statics. Yebo, amawebhusayithi amaningi esimanje anephesenti eliphansi lokuqukethwe okuguquguqukayo. Kodwa lapho amakhasi enziwe aqondene nawe, i-CDN ngeke ikwazi ukusiza (ngaphandle kokuthi mhlawumbe ikhiphe inani elikhulu lethrafikhi);
• Ukubambezeleka kwenqolobane. Ukuthuthukisa ngokwakho kungenye yezinzuzo eziyinhloko zamanethiwekhi okusabalalisa. Kodwa uma wenza ushintsho kuseva yoqobo, kuthatha isikhathi ngaphambi kokuthi i-CDN iyithole kuwo wonke amaseva ayo;
• Ukuvinjwa kwenqwaba. Uma nganoma yisiphi isizathu ikheli lasesizindeni se-inthanethi le-CDN livinjelwe, khona-ke wonke amasayithi asingathwe kuwo ayavalwa;
• Ezimweni eziningi, isiphequluli sizokwenza ukuxhumana okubili (kuseva yomsuka kanye ne-CDN). Futhi lawa ama-milliseconds engeziwe wokulinda;
• Ukubophezela ekhelini le-IP lamaphrojekthi (okuhlanganisa nalawo angekho) anikezwe wona ngaphambilini. Ngenxa yalokho, sithola amazinga ayinkimbinkimbi kusukela ku-Google search bots kanye nobunzima ekuletheni isayithi phezulu ngesikhathi sokukhuthazwa kwe-SEO;
• I-CDN node iyindawo engase yehluleke. Uma uzisebenzisa, kubalulekile ukuqonda kusengaphambili ukuthi umzila wesistimu usebenza kanjani nokuthi yimaphi amaphutha angenzeka ngenkathi usebenza nesayithi;
• Kuyinto encane, kodwa kufanele ukhokhele izinsizakalo zokulethwa kokuqukethwe. Ngokuvamile, izindleko zilingana nevolumu yethrafikhi, okusho ukuthi izilawuli zingase zidingeke ukuhlela isabelomali.

Iqiniso elibalulekile: ngisho nokuba seduze kwe-CDN kumsebenzisi akuqinisekisi i-ping ephansi. Umzila ungakhiwa usuka kuklayenti uye kumsingathi otholakala kwelinye izwe noma nakwelinye izwekazi. Lokhu kuncike kunqubomgomo yomzila yenethiwekhi ethile kanye nobudlelwano bayo nabaqhubi be-telecom (ukubuka). Abahlinzeki abaningi be-CDN abakhulu banezinhlelo eziningi, lapho izindleko zithinta ngokuqondile ukusondela kwendawo yokuba khona lapho kulethwa okuqukethwe kubasebenzisi abaqondisiwe.

Akhona amathuba - vula i-CDN yakho

Ingabe aweneme ngezinqubomgomo zezinkampani ezihlinzeka ngezinsizakalo zenethiwekhi yokusabalalisa okuqukethwe, kodwa ibhizinisi lakho lidinga ukwanda? Uma kungenzeka, kungani ungazami ukwethula i-CDN yakho. Lokhu kunengqondo ezimweni ezilandelayo:

• Izindleko zamanje zokusabalalisa okuqukethwe azihlangabezani nokulindelwe futhi azithetheleleki ngokomnotho;
• Sidinga inqolobane yaphakade, ngaphandle kokuba seduze kwamanye amasayithi kuseva nesiteshi;
• Izithameli eziqondiwe zisendaweni lapho kungekho khona amaphuzu okuba khona e-CDN atholakalayo kuwe;
• Isidingo sokwenza izilungiselelo kube ngokwakho lapho uletha okuqukethwe;
• Kunesidingo sokusheshisa ukulethwa kokuqukethwe okuguquguqukayo;
• Izinsolo zokwephulwa kobumfihlo bomsebenzisi nezinye izenzo ezingekho emthethweni engxenyeni yezinsizakalo zezinkampani zangaphandle.

Ukwethula i-CDN kuzodinga ukuthi ube negama lesizinda, amaseva amaningana ezifundeni ezihlukene (okubonakalayo noma okuzinikele) kanye nethuluzi lokucubungula isicelo. Ungakhohlwa ngokufaka izitifiketi ze-SLL, ukusetha nokuhlela izinhlelo zokusebenzela okuqukethwe okumile (i-Nginx noma i-Apache), nokuqapha ngempumelelo lonke uhlelo.

Ukucushwa okulungile kwama-proxies enqolobane kuyisihloko se-athikili ehlukile, ngakho-ke ngeke sichaze ngokuningiliziwe lapha: kuphi futhi iyiphi ipharamitha okufanele yisethwe ngendlela efanele. Uma kucatshangelwa izindleko zokuqalisa kanye nesikhathi sokuphakela inethiwekhi, ukusebenzisa izixazululo ezenziwe ngomumo kungase kuthembise kakhulu. Kodwa kuyadingeka ukuqondiswa yisimo samanje futhi uhlele izinyathelo ezimbalwa ngaphambili.

Uyini umugqa waphansi

I-CDN isethi yamakhono engeziwe okudlulisela ithrafikhi yakho kubantu abaningi. Ingabe ayadingeka ebhizinisini eliku-inthanethi? Yebo futhi cha, konke kuncike ekutheni okuqukethwe kuhloselwe izithameli nokuthi yiziphi izinjongo umnikazi webhizinisi aziphishekelayo.

Amaphrojekthi wesifunda kanye nakhethekile kakhulu azothola ukuntula okubi kakhulu kunezinzuzo ezivela ekusetshenzisweni kwe-CDN. Izicelo zisazofika kuqala kusiphakeli somthombo, kodwa ngomxhumanisi. Ngakho-ke ukwehla okungabazisayo kwe-ping, kodwa izindleko eziqondile zanyanga zonke zokusebenzisa isevisi. Uma unezinto ezinhle zenethiwekhi, ungathuthukisa kalula ama-algorithms okuvikela ulwazi, ubeke iziphakeli zakho eduze nabasebenzisi futhi uthole ukulungiselelwa kanye nenzuzo mahhala ngokuqhubekayo.

Kodwa obani ngempela okufanele bacabange ngamaseva abalamuli yizinkampani ezinkulu ingqalasizinda yazo engakwazi ukubhekana nokugeleza okuqhubekayo okukhulayo kwethrafikhi. I-CDN izikhombisa kahle njengobuchwepheshe obukuvumela ukuthi ukhiphe ngokushesha inethiwekhi endaweni ebanzi yabasebenzisi, unikeze ngokudlala okunethezekile kwamafu, noma udayise izimpahla endaweni enkulu yokuhweba.

Kodwa noma kunezithameli eziningi zendawo, kubalulekile ukuqonda kusengaphambili ukuthi kungani amanethiwekhi okusabalalisa okuqukethwe edingeka. Ukusheshiswa kwewebhusayithi kusewumsebenzi onzima, ongenakuxazululwa ngomlingo ngokusebenzisa i-CDN. Ungakhohlwa ngezici ezibalulekile ezifana nalezi: inkundla yesiphambano, ukuzivumelanisa nezimo, ukwenziwa ngcono kwengxenye yeseva, ikhodi, ukunikezwa, njll. Ukuhlolwa kokuqala kocwaningo lwezobuchwepheshe kanye nezinyathelo ezanele zokuqeda izinkinga kuseyisixazululo esilungile sanoma iyiphi iphrojekthi eku-inthanethi, kungakhathaliseki ukuthi igxile kangakanani kanye nesikali sayo.

Emalungelo Wokukhangisa

Ungakwazi uku-oda khona manje amaseva anamandlaabasebenzisa amaphrosesa akamuva amd epyc. Izinhlelo eziguquguqukayo - kusuka ku-1 CPU core kuya ku-128 CPU cores, 512 GB RAM, 4000 GB NVMe.

Source: www.habr.com