{"id":37790,"date":"2019-10-31T22:19:46","date_gmt":"2019-10-31T19:19:46","guid":{"rendered":"https:\/\/prohoster.info\/blog\/prikladnye-tehnologii-na-ruinah-blokchejn-lihoradki-ili-o-prakticheskoj-polze-raspredeleniya-resursov\/"},"modified":"2019-10-31T22:19:46","modified_gmt":"2019-10-31T19:19:46","slug":"prikladnye-tehnologii-na-ruinah-blokchejn-lihoradki-ili-o-prakticheskoj-polze-raspredeleniya-resursov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/prikladnye-tehnologii-na-ruinah-blokchejn-lihoradki-ili-o-prakticheskoj-polze-raspredeleniya-resursov","title":{"rendered":"Rakendustehnoloogiad plokiahela buumi varemetel v\u00f5i kuidas jaotamine toob praktilist kasu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Viimastel aastatel on uudistevoogudes ilmunud lugematul hulgal teateid uue t\u00fc\u00fcbi jaotatud arvutiv\u00f5rkudest, mis kerkivad s\u00f5na otseses m\u00f5ttes kusagilt ning p\u00fc\u00fcavad lahendada erinevaid probleeme \u2014 alates nutikate linnade loomisest kuni autori\u00f5iguste rikkumiste t\u00f5rjumiseni, v\u00f5i vastupidi, teabe ja ressursside salajase edastamiseni, et p\u00e4\u00e4seda riigi kontrolli alt v\u00e4lja. \u00dcksk\u00f5ik millises valdkonnas, jagavad need k\u00f5ik teatud \u00fchiseid jooni, kuna nende kasvu k\u00fctuseks on olnud algoritmid ja meetodid, mis on laiemasse kasutusse j\u00f5udnud hiljutise kr\u00fcptovaluutade ja sellega seotud tehnoloogiate buumi k\u00e4igus. T\u00f5en\u00e4oliselt oli iga kolmas artikkel spetsialiseeritud allikates sellel ajal pealkirjas s\u00f5na \u201eplokiahel\u201c \u2014 arutelud uute tarkvaralahenduste ja majandusmudelite \u00fcle said m\u00f5neks ajaks domineerivaks trendiks, mille taustal j\u00e4id teised jaotatud arvutis\u00fcsteemide kasutusvaldkonnad t\u00e4helepanuta. <\/p>\n<p>Samas n\u00e4gid vision\u00e4\u00e4rid ja spetsialistid n\u00e4htuse p\u00f5hiolemust: massilised jaotatud arvutused, mis on seotud suurte ja heterogeensete osaliste v\u00f5rkude ehitamisega, on j\u00f5udnud uuele arengutasemele. Piisab, kui j\u00e4tta k\u00f5rvale h\u00fcpeteemad ja vaadata asjale teise nurga alt: k\u00f5ik need v\u00f5rgud, mis koosnevad tohututest basseinidest, milles on tuhandeid iseseisvaid ja heterogeenseid osalisi, ei tekkinud iseenesest. Kr\u00fcptoliikumise entusiastid suudavad uuendatud v\u00f5tmes lahendada keerulisi andmete s\u00fcnkroonimise ja ressursside ning \u00fclesannete jagamise probleeme, mis on v\u00f5imaldanud sellise seadmete massi liitmise ning uue \u00f6kos\u00fcsteemi loomise, mille eesm\u00e4rk on lahendada \u00fcks kitsas suunatud \u00fclesanne.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nMuidugi ei j\u00e4\u00e4nud see m\u00e4rkamata vabade jaotatud arvutuste arendamise meeskondadele ja kogukondadele, ning uued projektid ei lasknud end kaua oodata.<br \/>\nKuid vaatamata olulisele teabe kasvu mahule, mis k\u00e4sitleb v\u00f5rkude ehitamist ja seadmete kasutamist, peavad perspektiivsete s\u00fcsteemide loojad lahendama t\u00f5siseid probleeme.<\/p>\n<h3>Esimene, kuigi see v\u00f5ib k\u00f5lada kummaliselt, on suunavaliku probleem<\/h3>\n<p>\nSuund v\u00f5ib olla \u00f5ige, kuid v\u00f5ib viia ummikusse \u2014 sellest ei p\u00e4\u00e4se, tsentraliseeritud selgeltn\u00e4gijate pakkumised IT-kogukonnas j\u00e4\u00e4vad veel maha. Kuid valik tuleb teha, et mitte sattuda traditsioonilisse l\u00f5ksu, mis seisneb selles, et meeskond haarab endale liiga laia ala ja p\u00fc\u00fcab algusest peale luua veel \u00fche mittespetsialiseeritud hajutatud arvutuste projekt. Tundub, et t\u00f6\u00f6de hulk pole nii hirmutav, tuleb peamiselt lihtsalt rakendada olemasolevaid lahendusi: \u00fchendada s\u00f5lmed v\u00f5rku, kohandada topoloogia m\u00e4\u00e4ramise, andmevahetuse ja nende j\u00e4rjepidevuse kontrollimise algoritme, rakendada s\u00f5lmede j\u00e4rjestamise ja konsensuse leidmise meetodeid, ning loomulikult luua oma p\u00e4ringute keel ja k\u00f5ik keele- ja arvutuslikud keskkonnad. Universaalse mehhanismi idee on \u00e4\u00e4rmiselt ahvatlev ja kerkib pidevalt esile \u00fches v\u00f5i teises valdkonnas, kuid v\u00e4ljundiks on ikka \u00fcks kolmest: loodud lahendus osutub tegelikult piiratud protot\u00fc\u00fcbiks, millel on hunnik poolikuid \u201eToDo\u201c \u00fclesandeid tagumise j\u00e4rele; v\u00f5i muutub see kasutamisk\u00f5lbmatuks monstrumiks, mis haarab igasuguseid puudutajaid oma l\u00f5hnavasse \u201eT\u00fc\u00fcringi sohu\u201c; v\u00f5i sureb lihtsalt \u00f5nnelikult, kuna projekti vedajad, olles suunatud teadmata suunas, saavad lihtsalt \u00e4ra t\u00fc\u00fctatud.<\/p>\n<p>\u00c4rge teeksime sama rumalat viga ja valime suuna, millel on arusaadav \u00fclesanne ja mis sobib h\u00e4sti hajutatud arvutuse mudeliga. On arusaadav, et inimesed proovivad k\u00f5ike korraga \u2014 valik on t\u00f5esti suur. Ja palju, mis on saadaval, n\u00e4eb nii R&amp;D kui ka majanduse seisukohalt \u00e4\u00e4rmiselt huvitav v\u00e4lja. Hajutatud v\u00f5rgu abil on v\u00f5imalik:<\/p>\n<ul>\n<li>Koolitada n\u00e4rviv\u00f5rke <\/li>\n<li>T\u00f6\u00f6delda signaalivooge <\/li>\n<li>Arvutada valkude struktuuri <\/li>\n<li>Teha kolme m\u00f5\u00f5tme stseneeringute renderdamist <\/li>\n<li>Modelleerida h\u00fcdrod\u00fcnaamikat <\/li>\n<li>Testida kauplemisstrateegiaid aktsiaturgudel <\/li>\n<\/ul>\n<p>\nEt mitte laskuda pikale nimekirjale huvitavatest asjadest, mis sobivad h\u00e4sti paralleelimiseks, valime edasise teema hajutatud renderdamine.<\/p>\n<p>Jaotatud renderdamine iseenesest ei ole kindlasti uus n\u00e4htus. Olemasolevad renderdus t\u00f6\u00f6riistad toetavad juba ammu koormuse jaotust erinevate masinate vahel, ilma milleta oleks 21. sajandis elu \u00fcsna masendav. Kuid ei tasu arvata, et teema on ammendatud ja seal ei ole rohkem tegemist \u2014 vaatleme \u00fchte eriti olulist probleemi: renderdamise v\u00f5rgu loomise t\u00f6\u00f6riista v\u00e4ljat\u00f6\u00f6tamine.<\/p>\n<p>Meie renderdamisv\u00f5rk on s\u00f5lmede kogum, mis vajab renderdamise \u00fclesannete t\u00e4itmist, koos s\u00f5lmedega, millel on renderdamiseks vabad arvutusressursid. Ressursside omanikud \u00fchendavad oma t\u00f6\u00f6stused renderdamisv\u00f5rku, et saada ja t\u00e4ita renderdamise \u00fclesandeid, kasutades m\u00f5nd toetatud renderdamismootorit. \u00dclesannete pakkujad t\u00f6\u00f6tavad v\u00f5rgu kaudu nagu pilveteenusega, mis iseseisvalt teostab ressursside jaotust, tagab t\u00e4itmise \u00f5igsuse, haldab riske ja lahendab muid probleeme.<\/p>\n<p>K\u00e4sitleme seega raamistikku, mis peab toetama integreerimist populaarsete renderdamismootoritega ning sisaldama komponente, mis pakuvad t\u00f6\u00f6riistu erinevate s\u00f5lmede v\u00f5rgustiku korraldamiseks ja \u00fclesannete voogude juhtimiseks.<\/p>\n<p>Sellise v\u00f5rgu majandusmudel ei ole p\u00f5him\u00f5tteliselt oluline, seega v\u00f5tame aluseks skeemi, mis on sarnane kr\u00fcptovaluutanetworkide arvutustes kasutatavale \u2014 ressursikasutajad saadavad tootmisteenuste osutajatele, kes teevad renderdamist\u00f6\u00f6d, tokenid. Olulisem on m\u00f5ista, milliseid omadusi peab raamistik endas sisaldama, seet\u00f5ttu vaatleme v\u00f5rgu osaliste peamist suhtlusstsenaariumi.<\/p>\n<p>V\u00f5rgus on kolm osalise osalust: ressurside pakkuja, \u00fclesannete pakkuja ja v\u00f5rgu operaator (keskuse juhtimine, v\u00f5rgu keskpunkt jne).<\/p>\n<p>V\u00f5rguoperaator annab ressursi pakkujale kliendirakenduse v\u00f5i ops\u00fcsteemi pildi koos k\u00f5igi vajalike tarkvaradega, mille ta installeerib masinale, mille ressursse ta soovib pakkuda. Lisaks on tal juurdep\u00e4\u00e4s veebiliidese kaudu isiklikule kontole, mis v\u00f5imaldab tal seadistada juurdep\u00e4\u00e4suparameetreid ja kaugjuhtida oma serverite maastikku: j\u00e4lgida riistvara parameetreid, teostada kaugseadistamist ja taask\u00e4ivitada.<\/p>\n<p>V\u00f5rgu juhtimiss\u00fcsteem anal\u00fc\u00fcsib uut s\u00f5lme \u00fchendamisel riistvara ja m\u00e4\u00e4ratud juurdep\u00e4\u00e4suparameetreid, hindab seda ja m\u00e4\u00e4rab teatud reitingu, seej\u00e4rel lisab selle ressursside registrisse. Edasi liikudes, et hallata riski, anal\u00fc\u00fcsitakse s\u00f5lme tegevusparameetreid ning s\u00f5lme reitingut korrigeeritakse, et tagada v\u00f5rgu stabiilne t\u00f6\u00f6. Keegi ei taha, et nende stseen saadetaks renderdama v\u00f5imsatele, kuid sageli \u00fclem\u00e4\u00e4rasest kuumenemisest kokku kukkuvatele kaartidele?<\/p>\n<p>Kasutaja, kes peab renderdama mingit stseeni, v\u00f5ib minna kahte teed: laadida stseen v\u00f5rku l\u00e4bi veebiliidese v\u00f5i kasutada pluginit, et \u00fchendada oma modelleerimispakett v\u00f5i installitud renderdaja v\u00f5rku. Sellega initsieeritakse kasutaja ja v\u00f5rgu vahel nutileping, mille tavap\u00e4rane l\u00f5petamise tingimus on tulemuse genereerimine v\u00f5rgu poolt stseeni arvutamisel. Kasutaja saab j\u00e4lgida \u00fclesande t\u00e4itmise protsessi ja hallata selle parameetreid oma isikliku konto veebiliidese kaudu.<\/p>\n<p>\u00dclesanne saadetakse <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/\"   title=\"server\" data-wpil-keyword-link=\"linked\">server<\/a>, kus anal\u00fc\u00fcsitakse stseeni mahtu ning \u00fclesande algataja poolt n\u00f5utavate ressursside hulka, mille j\u00e4rel jagatakse kogu maht osadeks, mis on kohandatud arvutamiseks eraldatud v\u00f5rgus olevate ressursside koguse ja t\u00fc\u00fcbi jaoks. \u00dcldine idee on see, et visualiseerimine saab jagada paljude v\u00e4ikeste \u00fclesannete vahel. Mootorid kasutavad seda eelist, jaotades need \u00fclesanded paljude ressursihankijate vahel. Lihtsaim viis on renderdada stseeni v\u00e4ikseid osi, mida kutsutakse segmentideks. Kui iga segment on valmis, loetakse kohalik \u00fclesanne l\u00f5petatuks ning ressurss suunatakse j\u00e4rgmise lahendamata \u00fclesande t\u00e4itmisele.<\/p>\n<p>Seega, renderdaja jaoks ei ole vahet, kas arvutused teostatakse \u00fchel masinal v\u00f5i paljude eraldi arvutitega moodustavas gridis. Jaotatud renderdamine lisab lihtsalt rohkem tuumasid ressursside kasutamiseks. V\u00f5rgu kaudu saab ta k\u00f5ik andmed, mis on vajalikud l\u00f5igu renderdamiseks, arvutab selle, saadab l\u00f5igu tagasi ja liigub j\u00e4rgmise \u00fclesande juurde. Enne v\u00f5rku minemist saab iga l\u00f5ik kokkulepitud metaandmed, mis v\u00f5imaldavad t\u00e4itev s\u00f5lmedel valida endale sobivaimad arvutus\u00fclesanded.<\/p>\n<p>L\u00f5ikude ja arvutuste jaotamise \u00fclesandeid tuleb lahendada mitte ainult k\u00e4itamise aja optimeerimise, vaid ka ressursside ja energiat\u00f5hususe optimaalsete kasutusviiside kaudu, kuna see m\u00f5jutab v\u00f5rgu majanduslikku efektiivsust. Eba\u00f5nnestumise korral on m\u00f5istlikum sellele s\u00f5lmele paigaldada kaevandaja v\u00f5i v\u00e4lja l\u00fclitada, et see ei tekitaks m\u00fcra ega raiskaks elektrit.<\/p>\n<p>Kuid p\u00f6\u00f6rdume tagasi protsessi juurde. \u00dclesande saamisel luuakse p\u00f5hja ja s\u00f5lme vahel ka nutileping, mis t\u00e4idetakse, kui \u00fclesande tulemuse arvutamine on korrektne. Lepingu t\u00e4itmise tulemuste p\u00f5hjal saab s\u00f5lm kas mingit t\u00fc\u00fcpi tasu.<\/p>\n<p>Juhtimiskeskus j\u00e4lgib \u00fclesande t\u00e4itmise protsessi, kogudes arvutustulemusi, saatides vale tulemused uuesti t\u00f6\u00f6tlemiseks ning j\u00e4rjestades j\u00e4rjekorda, j\u00e4lgides t\u00e4itmise normatiivperioodi (et v\u00e4ltida olukorda, kus viimane segment ei saa \u00fchegi s\u00f5lme poolt t\u00f6\u00f6le hakatud).<\/p>\n<p>Arvutustulemused l\u00e4bivad kompositsiooni etapi, p\u00e4rast mida saab kasutaja renderduste tulemused, ning v\u00f5rk v\u00f5ib saada tasu.<\/p>\n<p>Seega joonistub v\u00e4lja funktsionaalne koostis maastiku raamistikust, mis on ette n\u00e4htud jaotatud renderdamise s\u00fcsteemide loomiseks:<\/p>\n<ol>\n<li>Kasutajate isiklikud kontod veebip\u00e4\u00e4suga <\/li>\n<li>Tarkvarapakett s\u00f5lmedele paigaldamiseks <\/li>\n<li>Juhtimiss\u00fcsteemide kohta:\n<ul>\n<li>Ligip\u00e4\u00e4suhaldussubsystem <\/li>\n<li>Renderdamise \u00fclesannete dekompositsiooni alams\u00fcsteem <\/li>\n<li>\u00dclesannete jagamise alams\u00fcsteem <\/li>\n<li>Kompositsiooni alams\u00fcsteem <\/li>\n<li>Serveri haldamise ja v\u00f5rgu topoloogia alams\u00fcsteem <\/li>\n<li>Logimise ja auditi alams\u00fcsteem <\/li>\n<li>\u00d5ppiv ekspertalams\u00fcsteem <\/li>\n<li>Rest API v\u00f5i muu liides v\u00e4liste arendajate jaoks <\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><\/p>\n<h3>Kuidas teie arvate? Milliseid k\u00fcsimusi teema tekitab ja milliseid vastuseid te otsite?<\/h3>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/466139\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0435 \u0433\u043e\u0434\u044b \u043d\u043e\u0432\u043e\u0441\u0442\u043d\u044b\u0435 \u043b\u0435\u043d\u0442\u044b \u043d\u0430\u0432\u043e\u0434\u043d\u0438\u043b\u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u043e \u043f\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0438\u0445\u0441\u044f \u0431\u0443\u043a\u0432\u0430\u043b\u044c\u043d\u043e \u0438\u0437 \u043d\u0438\u043e\u0442\u043a\u0443\u0434\u0430 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0445 \u0432\u044b\u0447\u0438\u0441\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0441\u0435\u0442\u044f\u0445 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