Emnothweni wesimanje wedijithali, ukwethembeka akuseyona into yokunethezeka—kuyimali eyisisekelo okwakhelwa phezu kwayo ukwethenjwa kwamakhasimende, ukuzinza kwemali engenayo, kanye nedumela lomkhiqizo. Amabhizinisi kuyo yonke imikhakha manje ancike ohlelweni olubanzi lwamapulatifomu efu, izixhumanisi zohlelo lokusebenza, imigudu yedatha, kanye namanethiwekhi okulethwa kokuqukethwe, lapho noma ukuphazamiseka okufushane kungaholela ekulahlekelweni kwemisebenzi yokuthengiselana, abasebenzisi abadangele, kanye nomonakalo wangunaphakade wedumela. Ucwaningo lwezimboni lukhombisa ngokuqhubekayo ukuthi ihora elilodwa lokuma komsebenzi webhizinisi elikhulu lingabiza amakhulu ezinkulungwane zama-dollar, kodwa inani langempela livame ukukalwa ngokulahlekelwa ukwethenjwa okuthatha iminyaka ukukwakha kabusha. Njengoba izinhlangano zithutha imisebenzi ebaluleke kakhulu eya ezindaweni ezisabalalisiwe zefu, isidingo sezakhiwo ezingamunca ukushaqeka, zizungeze ukwehluleka, futhi zibuyise ngokushesha siye sakhula kakhulu. Kulesi simo esinzima, ikhono lokuletha isevisi engaphazamiseki seliphenduke umehluko obaluleke kakhulu ohlukanisa abaholi bemakethe nalabo abamane babambe iqhaza emakethe. Lesi sihloko sihlola ukuthi i-BOADC iyiguqule kanjani ukwethembeka kusuka ekubeni nje isifiso esingeyona into eqinisekisiwe, yaba yiyo nje into elinganisekayo, eyisiyalo sobunjiniyela esivikela amabhizinisi izikhathi zonke.

Ingqalasizinda yedijithali enika amandla ukusebenza kwebhizinisi lesimanje iyinkimbinkimbi kakhulu kunezinhlelo ezinkulu zeshumi leminyaka nje edlule, futhi lobu bunzima bushintshe ngokuyisisekelo isimo sobungozi. Izinhlelo zokusebenza manje zakhiwe ngamakhulu ama-microservice, ngalinye linokuncika kwalo, isigqi sokusetshenziswa, nezici zokwehluleka, ngakho-ke ukuxhumana okukodwa okubuthakathaka kunoma yikuphi lapho ochungechungeni kungabeka engozini ulwazi lomsebenzisi lonke. Amakhasimende nawo ase engakubekezeleli kakhulu ukwehla kwezinga, njengoba ucwaningo lwanamuhla lubonisa ukuthi cishe ingxenye yabo bonke abasebenzisi bayoyeka iwebhusayithi ethatha isikhathi esingaphezu kwemizuzwana emithathu ukulayisha futhi abavamile ukubuya ngemva kokungasebenzi okukhungathekisayo. Ngaphezu kwalokho, izinhlaka zokulawula nezivumelwano zesevisi eziyizinkontileka ziya ngokuya zibeka abahlinzeki icala ngeziqinisekiso zokutholakala, ziveza izinhlangano ezinhlawulweni nasekuchayekeni emthethweni lapho izilinganiso zokutholakala ezithenjisiwe zingafezekiswa ngokungaguquki. Ukusebenzisana ngakunye umsebenzisi anakho nomkhiqizo wedijithali kuwukuhlolwa okungaqondile kwengqalasizinda eyisisekelo, futhi ukuthengiselana ngakunye okuphumelelayo kuqinisa ukuzethemba ngokuthula kuyilapho ukwehluleka ngakunye kukugugula. Ngenxa yokuthi ukwethembeka kuthinta ngokuqondile ukwaneliseka kwamakhasimende, ukusebenza kahle, futhi ekugcineni inani labanikazi bamasheya, kufanele kuthathwe njengokubalulekile kwamasu kunokuba kube umcabango wokwengeza ekwakhiweni kohlelo. Ngenxa yalezi zizathu, amabhizinisi abheke phambili afuna ngentshiseko abalingani abamasiko abo wobunjiniyela abeka ukutholakala enkabeni yaso sonke isinqumo sezakhiwo.

BOADC, umhlinzeki ohamba phambili wezingqalasizinda zedijithali ezibalulekile kanye nezixazululo zokuthembeka okuphathwayo, usebenza ngefilosofi elula kodwa enamandla: cabanga ukuthi konke kuzogcina sehlulekile bese wenza ubunjiniyela ngokunjalo. Esikhundleni sokuzenzisa sengathi ukuphazamiseka kungagwenywa ngokukhuthala kuphela, inhlangano yamukela iqiniso lokuthi ihadiyesi iyaguga, isofthiwe iqukethe amaphutha acashile, amaxhoxho enethiwekhi ayashintshashintsha, futhi abasebenzi abangabantu ngezinye izikhathi benza amaphutha. Lo mqondo, owaziwa ngokuthi ukuklanyelwa kokwehluleka, ushintsha inhloso kude nokuvimbela wonke amaphutha angenzeka futhi esikhundleni salokho ugxile ekwakheni izinhlelo eziqhubeka zisebenza kahle noma ngabe izingxenye eziningi zehluleka kanyekanye. Inkampani ihambisana nalokhu kuqinisekiswa kwezakhiwo ngomgomo wokusebenza wokuqina okusebenzayo, okusho ukuthi amathimba ahlala ezilolongela izimo zokwehluleka, eqinisekisa izinqubo zokubuyisela, futhi ecija amakhono adingekayo ukubuyisela insiza ngesivinini nangokunemba. Ingxenye ngayinye, kusukela kusilinganisi somthwalo omncane kakhulu kuya kusigaxa esikhulu kunazo zonke sedathabheyisi, iphathwa njengento elahlekayo ngokwemvelo, nokuphindaphindwa kwakhiwe kuzo zonke izingqimba ukuze kungabikho phuzu elilodwa lokwehluleka elingasongela ubuqotho bensiza. Okubalulekile, le filosofi idlulela ngalé kobuchwepheshe ukuze ihlanganise abantu nezinqubo, iqinisekisa ukuthi wonke unjiniyela uyasiqonda isiqhaza sakhe ekugcineni ukutholakala kwensiza nokuthi yonke incwadi yokusebenza ibhalwe phansi, ihlolwe, futhi icwengisiswe njalo. Ngokuhlanganisa ubunjiniyela obungqongqo nokuzijwayeza okuhlelekile kokusebenza, i-BOADC itshale isiko lapho ukuthembeka kungewona nje umkhakha kodwa kuyinani elisakazekile lenhlangano, futhi yilolu siko olusekela isikhathi sokusebenza esingavamile amakhasimende aselindele ukusithola.

Uhlaka lokwethembeka u-BOADC alwakhe eminyakeni eminingi yokusebenzela amakhasimende adingayo ezinkampanini akulona iphutha noma umlingo ongaziwa; kunalokho, luwuhlelo olwakhiwe ngokucophelela lwezindlela ezihambisanayo ezibhekana nesigaba ngasinye somjikelezo wengqalasizinda. Ingxenye ngayinye iklanywe ngamabomu ukuze iqinise ezinye, idale inetha lokuphepha eliphelele elibamba ukuphazamiseka okungaba khona ngaphambi kokuba kukhule kube izehlakalo ezibonakala kumakhasimende. Uhlaka luncike ezinsikeni ezinhlanu eziyisisekelo, ngayinye inikela ngevelu elingekayo esiqinisekisweni esiphelele sesevisi engaphazamiseki u-BOADC aluletha kumakhasimende ayo. Lezi zinsika azisetshenziswa zodwa kodwa zihlanganiswa emjikelezweni oqhubekayo wokuvimbela, ukuthola, ukuphendula, nokufunda okugcina ipulatifomu yonke isesimweni sokulungela njalo. Izigaba ezilandelayo zihlola insika ngayinye ngemininingwane, zibonisa ukuthi izingxenye zisebenza kanjani ndawonye ukunikeza ukuvikelwa okuqhubekayo ngisho nasemithwalweni edinga kakhulu.

Enhliziyweni yohlaka lwe-BOADC kukhona ukwakheka okuyinkimbinkimbi okunezigaba eziningi zokuqinisekisa ukuthi izinsiza ezibalulekile zihlala zitholakala ngisho nalapho izingxenye eziyisisekelo zengqalasizinda zihlangabezana nokwehluleka okuyinhlekelele. Inkampani isebenzisa izikhungo zedatha eziningi ezihlukaniswe ngokwendawo, ngasinye sifakwe imithombo yamandla ezimele, amasistimu okupholisa, nokuxhumana kwenethiwekhi, ukuze umcimbi wesifunda njengenhlekelele yemvelo noma ukwehluleka kwezinsiza kungakwazi ukuphazamisa inkundla yonke. Ngaphakathi kwesakhiwo ngasinye, iseva ngayinye imiswe ngemithombo yamandla ephindwe kabili, izixhumanisi zenethiwekhi ezimbili, nesitoreji esibonakalisiwe, kuyilapho izingqimba zezinhlelo ezihlanganisiwe zisabalalisa ngokuzenzakalelayo umthwalo uma inodi eyodwa ingasebenzi kahle. Amasistimu edatha asebenzisa ukuphindaphinda okuhambisanayo ezindaweni zokutholakala, eqinisekisa ukuthi ukuthengiselana okugunyaziwe kukopishwa ngokushesha endaweni yesibili ngaphandle kokulahleka kwedatha. Lokhu kuphindaphinda kwezakhiwo kuhambisana nezindlela eziyinkimbinkimbi zokushintsha ezithola ukuphazamiseka ngesikhathi sangempela futhi ziqondise umthwalo wabasebenzisi ezinsizeni ezinempilo ngemizuzwana, ngokuvamile ziqedela ushintsho ngendlela ehambisanayo kangangokuba abasebenzisi bokugcina abaze baqaphela ukuphazamiseka. Umphumela wokugcina walobu buchule bokuklama ukuthi i-BOADC izuza izilinganiso eziphakeme kakhulu zokutholakala, nezinsiza zokukhiqiza ezisebenza ngokuqhubekayo ezingeni elingaphezu noma elilingana nezinga eliqinile elifunwa amakhasimende ayo.

Izindlela eziqinile zokubuyisela ukusebenza (failover) zodwa azanele ngaphandle kwesendlalelo esibanzi sokubheka (observability) esihlinzeka ngokubonakala kwesikhathi sangempela kwezempilo nokusebenza kwengxenye ngayinye kuyo yonke inkundla. Ngakho-ke, i-BOADC isebenzise ingqalasizinda yokuqapha eyinkimbinkimbi eqoqa amaphuzu e-telemetry ayizigidi ezingamakhulu amaningi ngehora ngalinye, ilandelela konke kusukela ekusetshenzisweni kwe-CPU nokusetshenziswa kwememori kuya ekubambezelekeni kwezicelo, amazinga amaphutha, nempilo yokuncika (dependency health). Lezi zimpawu zihlanganiswa ngezilinganiso eziningi kusetshenziswa ama-algorithms okufunda ngomshini athuthukile asungula izisekelo eziguqukayo zokuziphatha okuvamile futhi abone ukuphambuka okuncane okungandulela isigameko esibi. Lapho kutholakala okungajwayelekile, uhlelo lokuxwayisa lukhuphula ngobuhlakani umcimbi kunjiniyela ofanele osezintweni, lunikezwe imininingwane yomongo (metadata) enciphisa kakhulu isikhathi esidingekayo ukuze kutholakale ukuthi inkinga iyini. Kunokuba kugcwele abasebenzi ngomsindo, inkampani ibeka phambili ikhwalithi yezexwayiso kunobuningi bazo, iqinisekisa ukuthi isaziso ngasinye simele ubungozi bangempela futhi obusebenzisekayo. Lesi simo sokuqapha ngaphambi kwesikhathi sivumela ithimba lokuphatha ukuthi libhekane nezinkinga ezisafufusa ngemizuzu noma ngamahora ngaphambi kokuba zithinte abasebenzisi bokugcina, kuguqule lokho okungenzeka kube ukuphazamiseka okukhulu kube umcimbi ojwayelekile wokulungisa.

Ngokwakhela phezu kwesisekelo sayo sokuqapha, i-BOADC itshale kakhulu ekusebenzeni okuzenzakalelayo okwenza ingqalasizinda ikwazi ukuzilapha ngaphambi kokuba ukungenelela komuntu kudingeke. Izinhlelo zokuthola ezizenzakalelayo zihlola njalo impilo yemithwalo yokusebenza, futhi lapho zithola isimo esingaphilile, zingaqala izenzo ezisheshayo njengokuqala kabusha inqubo ewohlokile, ukuhambisa kabusha isitsha kuserver enempilo, noma ukwandisa umthamo owengeziwe ukuze kumuncwe ukwanda okungalindelekile kwethrafikhi. Lezi zikhono zokuzilapha zisebenza ezingeni elihlukahlukene lobunkimbinkimbi, kusukela ekuqaleni kabusha okushiwo ukuhlolwa kwempilo kuya emisebenzini eyinkimbinkimbi yokuhlela ehlela ukululama kuzo zonke izinsiza ezincikene. Lapho kutholakala okungajwayelekile, uhlelo lokulungisa lusebenzisa izincwadi zokusebenza eziqinisekisiwe ngaphambilini ezithatha ulwazi oluzuzwe kanzima lonjiniyela abanokuhlangenwe nakho, kuqinisekiswa ukuthi izinqubo zokululama ezinhle kakhulu zisetshenziswa ngokungaguquki ngaso sonke isikhathi. Ukuzenzakalela futhi kugcina umkhondo onemininingwane wazo zonke izenzo ezithathiwe, okudlulisela ngqo enqubweni yokuhlaziya ngemva kwesehlakalo futhi kunika amandla ukuthuthukiswa okuqhubekayo komqondo wokuphendula. Ngokushintsha ngokuqhubekayo izimpendulo zokusebenza ezijwayelekile kusukela emzamweni womuntu kuya ekusebenzeni okuzenzakalelayo, i-BOADC iqeda ukubambezeleka komuntu okuvame ukwelula ukuphazamiseka futhi kanyekanye ikhulula onjiniyela bayo ukuze bagxile emsebenzini obaluleke kakhulu.

Ngisho noma uhlelo luklanywe kahle kakhulu, ekugcineni luzoveza ubuthakathaka obungangingalindeleka, yingakho i-BOADC isebenzisa isiyalo sobunjiniyela be-chaos ukuze yenze ngamabomu ukufaka ukwehluleka ezindaweni zokukhiqiza ngaphansi kwezimo ezilawulwa ngokucophelela. Inkampani iqhuba izivivinyo ezijwayelekile ezilingisa ukulahleka kwezingxenye ezibalulekile, ukuhlukaniswa kungazelelwe kwengxenye yenethiwekhi, noma ukuphela kwezinsiza ezabiwe, konke ngenhloso ecacile yokuqinisekisa ukuthi uhlelo lwehliswa kahle kunokuba luhluleke ngokuyinhlekelele. Lezi zivivinyo zihlelwa ngezikhathi zokuncipha kwethrafikhi futhi zihlale ziboshwe yizindlela zokuphepha eziyinkimbinkimbi ezingamisa ngokushesha isivivinyo uma sisongela ukuweqa imikhawulo yobungozi echaziwe. Ngaphandle kokufaka ukwehluleka, ithimba liphinde lenze izivivinyo eziphelele zokucindezela eziphushela izinhlelo emikhawulweni yazo enkulu, zihlola indlela ipulatifomu eziphatha ngayo ngaphansi komthwalo omkhulu ongalindelekile, ukukhula okusheshayo kwedatha, noma amaphethini ethrafikhi angavamile. Isivivinyo ngasinye sikhiqiza inqwaba yedatha yokubheka mayelana nokuziphatha kohlelo ngaphansi kwengcindezi, futhi imininingwane etholakala kulezi zivivinyo iguqulwa ngendlela ehlelekile ibe yizinguquko zokwakhiwa kanye nezinyathelo zokuqinisa. Lokhu kuzibophezela ekuqinisekiseni okuqhubekayo kuqinisekisa ukuthi i-BOADC ayikaze ithole ubuthakathaka bohlelo ngesikhathi sesehlakalo esiphilayo lapho ubungozi buphezulu kakhulu futhi izinketho zingezinhle kakhulu.

Ukuhlolwa kwangempela kwanoma yiluphi uhlaka lokwethembeka akusikho ukuthi lusebenza kanjani ngaphansi kwezimo ezifanele kodwa ukuthi lusabela kanjani lapho lubhekene nobunzima bangempela obungenakugwemeka, futhi i-BOADC yabhekana ncamashi nokuhlolwa okunjalo ngesikhathi sokuphazamiseka okukhulu kwesifunda okwashaya esinye sezikhungo zayo zedatha eziyinhloko. Umcimbi waqala ngokwehluleka kwensiza yangaphandle okwadala ukungasebenzi kahle kohlelo lokupholisa, okwadala izimo zokukhuphuka okusheshayo kwezinga lokushisa ngaphakathi kwehholo elibalulekile lamaseva futhi kwasongela ukulimala kwemishini ngokushesha ezinkulungwaneni zemisebenzi esebenzayo. Ngemizuzwana nje ukutholakala kokungajwayelekile, izinhlelo zokuqapha ezizenzakalelayo zasebenza izinqubo zokuphakamisa izimo eziphuthumayo, kuyilapho ubuchwepheshe obuyisipele buzenzakalela buqala ukuqondisa kabusha ithrafikhi emandleni anempilo ezikhungweni ezingezinye ezingamakhilomitha amakhulu kude. Abasebenzi ngasikhathi sinye baqala izinqubo ezibhaliwe zokululama eziphuthumayo, behlukanisa izinhlelo ezithintekile, bevula amandla okusekela, futhi behlela ukuthuthwa okuhlelekile kwezinsiza ezinombuso ezinsizeni ezitholakalayo. Ukuguqulwa konke, okuhlanganisa ukuvumelanisa kwedatha yamabhithi amaningi nokumiswa kabusha kwamaseshini amaningi asebenzayo, kwaqedwa ngaphansi kwemizuzu eyishumi nanye ngaphandle kokulahleka kwedatha okubonwayo nangaphandle kokuphazamiseka kwezinsiza ezibheke kumakhasimende. Kulo lonke lolu hlelo, inhlangano yagcina ukuxhumana okusobala namakhasimende athintekile, inikeza izibuyekezo ezivamile nezikhuluma iqiniso ezaqinisa ukwethembana nangesikhathi sokucindezeleka okukhulu. Lapho uthuli seluzinzile, ukuhlaziywa kwangaphakathi kwembula ukuthi umphumela obushelelezi wawungewona umunwe wenhla kodwa wawuwumkhiqizo oqondile weminyaka yokutshalwa kwezimali ekwakhiweni okuyisipele, ukuzilolonga okuqinile, nokwenza ngokuqondile, okufakazela ukuthi ukulungiselela ngempela kunquma ukusebenza ngezikhathi zezimo eziphuthumayo.

Ku-BOADC, isehlakalo ngasinye—noma sibukeka sincane kangakanani—simelela ithuba elibalulekile lokufunda, futhi inhlangano isisungule inqubo eqinile yokukhipha ulwazi oluqhubekayo kusukela kukho konke ukuphazamiseka. Ngemva kwanoma yisiphi isehlakalo esibalulekile, inkampani yenza ukuhlaziywa okungasoli muntu okugxile ngokuphelele ekuqondeni izimo zesistimu ezivumele ukwehluleka ukwenzeka, kunokuba ibheke ukuthola abantu okumele babhekane nomthwalo. Lezi zibuyekezo zikhiqiza imibiko enemininingwane ehlola zonke izingqimba zesistimu, kusukela kusenzakalo esiqalile kuya ezindleleni zokuthola, ezenzweni zokusabela, nasekubuyiselweni ekugcineni, iveza ngokunembile lapho isistimu isebenze kahle khona nalapho yehlule khona ukufinyelela okulindelekile. Okutholakele kube sekuguqulwa kube yizinto eziphathekayo zokusebenza, ngayinye inikezwa umnikazi obhekelelayo onesikhathi esinqunyiwe, kuqinisekiswa ukuthi ubuthakathaka obutholiwe buyalungiswa ngempela kunokuba nje kubhalwe phansi bese kukhohlwa. Le ntuthuko ibuyiselwa ngqo ekwakhiweni kwengqalasizinda yesikhathi esizayo, okuqukethwe kwezincwadi zokusebenza, nezimo ezivivinywayo ekuhlolweni kobunjiniyela be-chaos, kudala umjikelezo wempendulo onamandla oqhubeka uphakamisa izinga lokumelana nesistimu. Ngokuhamba kwesikhathi, lokhu kuzibophezela okungagobekiyo ekufundeni kukhiqize ukuncipha okukalekayo kokuvela kanye nobukhulu bezigameko kuyo yonke inkundla. Okubalulekile, leli siko lokuthuthuka okuqhubekayo linabela nakumakhasimende, njengoba i-BOADC yabelana ngemibono nemincomo efanele esiza izinhlangano ukuthi ziqinise isimo sazo sokwethembeka. Ngalo mjikelezo wokuziphilisa wokusebenza nokuthuthukiswa, ukwethembeka e-BOADC akukaze kuthathwe njengempumelelo eqediwe kodwa njengekhono elikhulayo eliqina njalo ngekota ngayinye.

Esikhathini lapho ukuphazamiseka kwedijithali kuba nemiphumela ebalulekile, izinhlangano zidinga okungaphezu kobuchwepheshe—zidinga umlingani ophethe yonke indlela yokusebenza yakhe yakhelwe phezu kwezimiso zokwethembeka abazifisayo. I-BOADC izihlukanisa ngomlando obonakalayo wokutholakala okuphezulu okuqhubekayo, isekelwa yiqoqo eliphelele lezinsizakalo ezihlanganisa ingqalasizinda yamafu elawulwayo, ukusingathwa kwedathabhesi okusebenza kahle kakhulu, ukubuyisela izimo eziphuthumayo, kanye nokusekelwa okungochwepheshe kwezokusebenza izikhathi ezingama-24/7. Inzuzo yokuncintisana yale nhlangano ayikho nje kuphela kwezinto zayo ezinhle zobuchwepheshe noma izinhlelo eziyinkimbinkimbi, kodwa kusiko olujulile oluthatha ukutholakala kwekhasimende ngalinye njengomsebenzi womuntu siqu owabelwana ngawo phakathi kwawo wonke ithimba lobunjiniyela. Amakhasimende azuza kwizinsiza ezinikezelwe zobunjiniyela bokwethembeka, izivumelwano ezicacile zezinga lokusebenza, kanye nokufinyelela ekuhlaziyweni okuningiliziwe kokusebenza okunikeza ukubonakala okungakaze kubonwe empilweni yemisebenzi yabo. Inkampani futhi iyahlukanisa ngezibopho zokuphendula ngokushesha, ngezikhathi eziqinisekisiwe zokuphendula ezehlakalweni ezilinganiswa ngemizuzu hhayi ngamahora, isekelwa yithimba elisatshalaliswa emhlabeni wonke eliqinisekisa ukumbozwa kochwepheshe izikhathi zonke. Ngaphezu kwalokho, izinsizakalo zokweluleka ezisebenzayo ze-BOADC zisiza amakhasimende ukuthi aklele izinhlelo zawo uqobo ukuze zibe nokuqina okukhulu, zabelana ngezindlela ezinhle ezandisa izinzuzo zengqalasizinda ethembekile ngqo ekwakhiweni kohlelo lwekhasimende. Uma ubambisana ne-BOADC, uthola nje nje umhlinzeki wezinsizakalo kodwa umqaphi okhuthele wobukhona bakho bedijithali, lowo osebenza ngokuqhubekayo ukuvikela idumela lakho, imali yakho, nokwethenjwa kwamakhasimende akho. Emabhizinisini aqondayo ukuthi ukwethembeka yisona isilinganiso sangempela senani lengqalasizinda, i-BOADC imele ukukhetha okunqumayo, okuthembekile, nokubaluleke kakhulu ngobuchule.