{"id":33233,"date":"2019-10-31T21:51:27","date_gmt":"2019-10-31T18:51:27","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kak-data-tsentry-spasayut-prazdniki\/"},"modified":"2019-10-31T21:51:27","modified_gmt":"2019-10-31T18:51:27","slug":"kak-data-tsentry-spasayut-prazdniki","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/kak-data-tsentry-spasayut-prazdniki","title":{"rendered":"Kuidas andmekeskused p\u00e4\u00e4stavad p\u00fchi.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Kuidas andmekeskused p\u00e4\u00e4stavad p\u00fchi.\" src=\"\/wp-content\/uploads\/2019\/05\/d6f44ed3931a3eb8a03b1715bc0bb159.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nAasta jooksul reisivad venelased regulaarselt puhkusele \u2013 uusaasta puhkused, maikuu p\u00fchad ja teised l\u00fchikesed n\u00e4dalavahetused. See on traditsiooniline aeg seriaali maratonideks, spontaanseteks ostudeks ja Steam'i allahindlusteks. Eel\u00f5htul kannab jaekaubandus ja logistikaettev\u00f5tted suuremat koormust: inimesed tellivad kingitusi internetipoodidest, maksavad nende kohaletoimetamise eest, ostavad reisipileteid, suhtlevad. Kalendriga seotud n\u00f5udluse tipud toimivad heade stressitestidena ka online-kino, m\u00e4nguportaalide, videosalvestuste ja voogedastusmuusika teenuste jaoks \u2013 p\u00fchade ajal t\u00f6\u00f6tavad nad k\u00f5ik \"\u00fclekoormuse\" tingimustes. <\/p>\n<p>Selgitame, kuidas on korraldatud sisu katkestusteta k\u00e4ttesaadavuse tagamine online-kino Okko n\u00e4itel, mis toetub oma t\u00f6\u00f6s Linxdatacenteri andmekeskuse j\u00f5udlusele. <br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nVarem oli tarvis osta t\u00e4iendavat varustust kohaliku hostimise jaoks hooajaliste tarbimise h\u00fcpetega, kusjuures seda tehti \"varuga\". Kuid kui \"X hetk\" saabus, selgus sageli, et ettev\u00f5tted ei suudnud servers\u00fcsteemide ja andmesalvestuse \u00f5ige seadistamisega iseseisvalt toime tulla v\u00f5i ei j\u00f5udnud sellega aegsasti tegelema. Probleemide lahendamine eriolukordade ajal k\u00e4igus osutus keeruliseks. Aja jooksul sai selgeks, et sisu ja online-teenuste n\u00f5udluse tipud saab t\u00f5husalt rahuldada kolmandate osapoolte ressurssidega, mida saab soetada makse-eest-kasutuse j\u00e4rgi \u2014 tasumine tegelikult tarbitud mahu eest.<\/p>\n<p>T\u00e4nap\u00e4eval tellivad praktiliselt k\u00f5ik ettev\u00f5tted, kes ootavad n\u00f5udluse kasvu oma ressursside j\u00e4rele p\u00fchade ajal (nn burst), ettekanne sidekanalite l\u00e4bilaskev\u00f5ime suurendamiseks. Need, kes paigutavad rakendusi ja andmebaase andmekeskuste ressurssidele, suurendavad p\u00fchade tipuks pilvandmet\u00f6\u00f6tluse arvutusv\u00f5imet, tellides andmekeskustes vajalikke virtuaalmasinaid, andmesalvestuse mahtu jne. \u00a0<\/p>\n<h2>Kuidas mitte eksida arvutustes<\/h2>\n<p>\n<img decoding=\"async\" alt=\"Kuidas andmekeskused p\u00e4\u00e4stavad p\u00fchi.\" src=\"\/wp-content\/uploads\/2019\/05\/f394d3fa6739f14e10a31aae0bc03e79.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nP\u00fcsimiseks suurte koormustega on oluline koosk\u00f5lastatud t\u00f6\u00f6 teenusepakkuja ja kliendi vahel. Peamised punktid selles t\u00f6\u00f6s on t\u00e4pne koormuse h\u00fcppe prognoos ajakava ja mahtude osas, hoolikas planeerimine ja kvaliteetsed suhted kolleegidega andmekeskuses ning IT-spetsialistide meeskonnaga sisu pakkuja poolel. <\/p>\n<p>Kiirete ressursside eraldamine, et uus lemmik seriaali episood teie tahvelarvuti ekraanil ei hanguks, on toetatud mitmete lahendustega. <br \/>\n\u00a0<\/p>\n<ul>\n<li>Esiteks, need on koormuste tasakaalustajad: need on tarkvaralahendused, mis j\u00e4lgivad hoolikalt serverite, andmesalvestuss\u00fcsteemide ja v\u00f5rgu koormust, v\u00f5imaldades optimeerida iga s\u00fcsteemi t\u00f6\u00f6d vastavalt seatud \u00fclesandele. Koormuste tasakaalustajad hindavad nii riistvara kui ka <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/vps\/\"   title=\"virtuaalmasinad\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1997\">virtuaalmasinad<\/a>, v\u00e4ltides nii s\u00fcsteemide j\u00f5udluse langust kui ka infrastruktuuri \"\u00fclekuumenemist\" ja aeglustumist. Nii hoitakse teatud tasemel ressursside varu, mida saab kiiresti suunata h\u00e4daseisundite lahendamiseks (n\u00e4iteks j\u00e4rsk t\u00f5us videoportaali kasutamise korral v\u00f5i teatud toote tellimuste kasv jne).\n<\/li>\n<li>Teiseks, CDN. See tehnoloogia v\u00f5imaldab kasutajatel viivitusteta sisu portaali l\u00e4hedalt saada, mis asub nende geograafilise asukoha piires. Lisaks v\u00e4hendab CDN negatiivset m\u00f5ju andmeedastusprotsessidele, mis on p\u00f5hjustatud kanalite \u00fclelaskest, \u00fchenduste katkemisest, pakettide kadumise t\u00f5ttu kanalite l\u00f5ikude juures jne. \n<\/li>\n<\/ul>\n<p><\/p>\n<h2>K\u00f5ike n\u00e4gev Okko<\/h2>\n<p>\n<img decoding=\"async\" alt=\"Kuidas andmekeskused p\u00e4\u00e4stavad p\u00fchi.\" src=\"\/wp-content\/uploads\/2019\/05\/0f6d80aa19362ba75710ef08e42eafe9.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nVaatame n\u00e4idet Okko veebikino valmistumisest p\u00fchadeks, kasutades meie platvorme Moskvas ja Peterburis. <\/p>\n<p>Aleksandr Golubevi, Okko tehnilise direktori s\u00f5nul on ettev\u00f5ttes, lisaks kalendrip\u00fchadele (k\u00f5rghooaegadele), perioode, mil v\u00e4ljastatakse peamised filmide esilinastused suurtootjatelt: <\/p>\n<blockquote><p>Igal aastal p\u00fchadehooajal kasvab Okko liiklus maht ligikaudu kaks korda rohkem kui eelmisel aastal. Kui eelmisel uue aasta hooajal oli maksimaalne tippkoormus 80 Gbit\/s, siis 2018\/19 ootasime 160 - traditsiooniline kahekordne kasv. Kuid saime rohkem kui 200 Gbit\/s! \n<\/p><\/blockquote>\n<p>\nOkko valmistub tippkoormuseks rahulikult, aasta jooksul, projekti koodimehega \u00abUus Aasta\u00bb. Varem kasutas Okko oma infrastruktuuri, ettev\u00f5ttel on oma sisu edastamise klaster, oma riistvara ja tarkvara. Aasta jooksul ostsid Okko tehnilised spetsialistid j\u00e4rk-j\u00e4rgult <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/\"   title=\"uus server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"778\">uus server<\/a>, suurendades oma kihi l\u00e4bilaskev\u00f5imet, eeldades aastast kahekordset kasvu. Lisaks \u00fchendati uusi uplinke ja operaatoresid - lisaks suurtele m\u00e4ngijatele nagu \u00abRostelecom\u00bb, \u00abMegafon\u00bb ja MTS, \u00fchendati ka liikluse vahetuspunktid ja k\u00f5ige v\u00e4iksemad operaatorid. Selline l\u00e4henemine v\u00f5imaldas teenust v\u00f5imalikult paljude klientideni toimetada k\u00f5ige l\u00fchemat marsruuti pidi. <\/p>\n<p>Eelmisel aastal, anal\u00fc\u00fcsides seadmete, t\u00f6\u00f6j\u00f5u ja laiendamise hindu ning v\u00f5rreldes neid kolmandate osapoolte CDN-ide kasutamisega, m\u00f5istsid Okko, et on aeg proovida h\u00fcbriidset edastamismudelit. Uue aasta p\u00fchade ajal toimunud kahekordse kasvu j\u00e4rel j\u00e4rgnes liikluse langus, ja veebruar on k\u00f5ige madalam sesoon. Seega, sellel ajal j\u00e4\u00e4b oma seadmed kasutamata. Suve poole langeb langus tasakaalu, ja s\u00fcgisel algab uus t\u00f5us. Seet\u00f5ttu l\u00e4ks Okko uude 2019. aastasse teisiti: nad t\u00e4iendasid oma tarkvara, et suudaksid jaotada koormust mitte ainult enda, vaid ka v\u00e4liste CDN-ide (sisu edastamise v\u00f5rk \u2013 Content Delivery Network) peale. \u00dchendati kaks sellist CDN-i, kuhu suunati \u00fclej\u00e4\u00e4k liiklusest. Okko sisemine IT-infrastruktuuri l\u00e4bilaskev\u00f5ime oli valmis taluma seda kahekordset kasvu, kuid juhuks, kui ressursid \u00fcletatakse, valmistati ette partnerite CDN-id. <\/p>\n<blockquote><p>\u201eCDN-i mitte laiendamise otsus aitas Okko kokkuhoid umbes 20% CAPEX jaotuse eelarvest. Lisaks s\u00e4\u00e4stis ettev\u00f5te mitu inimese kuud, \u00fcle kandes seadmete seadistamise t\u00f6\u00f6 partneri \u00f5lgadele,\u201c kommenteerib Aleksei Golubev.<\/p><\/blockquote>\n<p>\nOkko jaotusklauster (sisemine CDN) on loodud kahes Linxdatacenter'i asukohas Moskvasse ja Peterburi. Tagatud on t\u00e4ielik sisu ja selle vahem\u00e4lu (jaotavad s\u00f5lmed) peegeldamine. Vastavalt t\u00f6\u00f6tleb Moskva andmekeskus Moskvat ja mitmeid Venemaa piirkondi, Peterburi aga P\u00f5hja-L\u00e4\u00e4net ja \u00fclej\u00e4\u00e4nud riigi territooriumi. Tasakaalustamine toimub mitte ainult piirkondliku m\u00e4rgi alusel, vaid ka s\u00f5ltuvalt konkreetse andmekeskuse s\u00f5lmede koormusest, arvesse v\u00f5etakse ka filmi olemasolu vahem\u00e4lus ning rida teisi tegureid. <\/p>\n<p>Teenuse suurlahendus n\u00e4eb v\u00e4lja selliselt:<\/p>\n<p><img decoding=\"async\" alt=\"Kuidas andmekeskused p\u00e4\u00e4stavad p\u00fchi.\" src=\"\/wp-content\/uploads\/2019\/05\/8feae02d3d7062cc5d0445d2dcc6fe8f.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nF\u00fc\u00fcsiline teenus ja toote arendamise tugi koosnevad umbes k\u00fcmnest rack'ist Peterburis ja m\u00f5nest rack'ist Moskvas. On paar k\u00fcmmet serverit virtualiseerimiseks ja peaaegu kakssada \"raudserverit\" muudeks otstarveteks \u2013 levitamine, teenuse tugi ja kontorienda infrastruktuur. Sisu pakkuja suhtlemine andmekeskusega tipn\u00f5udluse ajal ei eristu arendustegevusest. K\u00f5ik suhtlemine piirdub toetuse taotlusega ning h\u00e4daolukordade korral \u2013 telefonik\u00f5nega. <\/p>\n<p>T\u00e4na, rohkem kui kunagi varem, oleme l\u00e4hedal t\u00f5eliselt 100% katkestusteta sisu tarbimise stsenaariumile veebis, kuna k\u00f5ik vajalikud tehnoloogiad on juba saadaval. Veebistriiming areneb v\u00e4ga kiiresti. \u00d5iguslike sisu tarbimise mudelite populaarsus t\u00f5useb: Venemaa kasutajad hakkavad j\u00e4rk-j\u00e4rgult harjuma sellega, et sisu eest tuleb maksta. Ja see kehtib mitte ainult filmide, vaid ka muusika, raamatute, haridusmaterjalide kohta. Seet\u00f5ttu on k\u00f5ige mitmekesisema sisu tarnimine ja v\u00e4himad viivitused v\u00f5rgus - kriitiline kriteerium veebiteenuste t\u00f5hususes. Meie \u00fclesanne teenusepakkujana on rahuldada ressursivajadused \u00f5igeaegselt ja varuga.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/linxdatacenter\/blog\/450928\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 \u0433\u043e\u0434\u0430 \u0440\u043e\u0441\u0441\u0438\u044f\u043d\u0435 \u0440\u0435\u0433\u0443\u043b\u044f\u0440\u043d\u043e \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u043d\u0430 \u043f\u0440\u0430\u0437\u0434\u043d\u0438\u043a\u0438 \u2013 \u043d\u043e\u0432\u043e\u0433\u043e\u0434\u043d\u0438\u0435 \u043a\u0430\u043d\u0438\u043a\u0443\u043b\u044b, \u043c\u0430\u0439\u0441\u043a\u0438\u0435 \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u043c\u0435\u043d\u0435\u0435 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\u043b\u043e\u0433\u0438\u0441\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438: \u043b\u044e\u0434\u0438 \u0437\u0430\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0442 \u043f\u043e\u0434\u0430\u0440\u043a\u0438 \u0432 \u0418\u043d\u0442\u0435\u0440\u043d\u0435\u0442-\u043c\u0430\u0433\u0430\u0437\u0438\u043d\u0430\u0445, \u043e\u043f\u043b\u0430\u0447\u0438\u0432\u0430\u044e\u0442 \u0438\u0445 \u0434\u043e\u0441\u0442\u0430\u0432\u043a\u0443, \u043f\u043e\u043a\u0443\u043f\u0430\u044e\u0442 \u0431\u0438\u043b\u0435\u0442\u044b \u0434\u043b\u044f \u043f\u043e\u0435\u0437\u0434\u043e\u043a, \u043e\u0431\u0449\u0430\u044e\u0442\u0441\u044f. \u041a\u0430\u043b\u0435\u043d\u0434\u0430\u0440\u043d\u044b\u0435 \u043f\u0438\u043a\u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":24969,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-33233","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 \u0433\u043e\u0434\u0430 \u0440\u043e\u0441\u0441\u0438\u044f\u043d\u0435 \u0440\u0435\u0433\u0443\u043b\u044f\u0440\u043d\u043e \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u043d\u0430 \u043f\u0440\u0430\u0437\u0434\u043d\u0438\u043a\u0438 \u2013 \u043d\u043e\u0432\u043e\u0433\u043e\u0434\u043d\u0438\u0435 \u043a\u0430\u043d\u0438\u043a\u0443\u043b\u044b, 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