{"id":90281,"date":"2020-07-30T13:42:14","date_gmt":"2020-07-30T11:42:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/kak-uma-tech-infrastrukturu-razvivala"},"modified":"2020-07-30T13:42:14","modified_gmt":"2020-07-30T11:42:14","slug":"kak-uma-tech-infrastrukturu-razvivala","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/administrirovanie\/kak-uma-tech-infrastrukturu-razvivala","title":{"rendered":"Kako je Uma.Tech razvijala infrastrukturu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><i>Pokrenuli smo nove usluge, promet je rastao, zamjenjivali smo poslu\u017eitelje, povezivali nove platforme i preure\u0111ivali podatkovne centre \u2013 a sada \u0107emo vam ispri\u010dati ovu pri\u010du koju smo s vama dijelili prije pet godina.<\/i>.<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>Pet godina - karakteristi\u010dan je period za povla\u010denje srednjoro\u010dnih rezultata. Stoga smo odlu\u010dili govoriti o razvoju na\u0161e infrastrukture, koja je kroz pet godina pro\u0161la iznimno zanimljiv put razvoja na koji smo ponosni. Realizirane kvantitativne promjene su se preobrazile u kvalitativne, a sada infrastruktura mo\u017ee raditi u re\u017eimima koji su se sredinom pro\u0161log desetlje\u0107a \u010dinili fantazijom. <\/p>\n<p>Osiguravamo rad na najslo\u017eenijim projektima s rigoroznim zahtjevima za pouzdano\u0161\u0107u i optere\u0107enjem, me\u0111u kojima su PREMIER i Match TV. Za sportske prijenose i premijere popularnih serija potrebna je isporuka prometa u terabitima\/s, \u0161to lako realiziramo, i to tako \u010desto da je rad s takvim brzinama odavno postao na\u0161a svakodnevnica. A prije pet godina najzahtjevniji projekt koji je radio na na\u0161im sustavima bio je Rutube, koji se od tada razvijao, pove\u0107avao volumene i promet, \u0161to je trebalo uzeti u obzir prilikom planiranja optere\u0107enja.<\/p>\n<p>Govori li smo o tome kako smo razvijali \u201ehardver\u201c na\u0161e infrastrukture (<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/rutube\/blog\/271143\/\">\u201eRutube 2009-2015: pri\u010da o na\u0161em hardveru\u201c<\/a><\/noindex>) i razvijali sustav odgovoran za isporuku videa (<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/rutube\/blog\/269227\/\">\u201eOd nule do 700 gigabita u sekundi \u2014 kako isporu\u010duje video jedan od najve\u0107ih video hosting servisa u Rusiji\u201c<\/a><\/noindex>), no od pisanja ovih tekstova pro\u0161lo je mnogo vremena, stvoreno i implementirano je mnogo drugih rje\u0161enja, \u010diji rezultati nam omogu\u0107uju da odgovorimo na moderne zahtjeve i budemo dovoljno fleksibilni da se prilagodimo novim zadacima.<\/p>\n<p><img decoding=\"async\" alt=\"Kako je Uma.Tech razvijala infrastrukturu\" src=\"\/wp-content\/uploads\/2020\/07\/0b16b324e75393a484da27c0dfb986e7.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b>Mre\u017eno jezgro<\/b> stalno razvijamo. Pre\u0161li smo na Cisco opremu 2015. godine, o \u010demu smo spominjali u pro\u0161lom \u010dlanku. Tada su to bili jo\u0161 uvijek 10\/40G, ali iz razumljivih razloga ve\u0107 nekoliko godina unapre\u0111ujemo postoje\u0107e \u0161asije, i sada aktivno koristimo i 25\/100G. <\/p>\n<p><img decoding=\"async\" alt=\"Kako je Uma.Tech razvijala infrastrukturu\" src=\"\/wp-content\/uploads\/2020\/07\/0a06044153815c872153608724fc79b2.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n100G veze vi\u0161e nisu luksuz (to je vi\u0161e hitna potreba vremena u na\u0161em segmentu), a ni rijetkost (sve vi\u0161e operatora nudi povezivanje na tim brzinama). Me\u0111utim, 10\/40G ostaje relevantno: preko ovih veza nastavljamo povezivati operatore s malim prometom, za koje trenutno nije racionalno koristiti ve\u0107i port.<\/p>\n<p>Na\u0161a mre\u017ena jezgra zaslu\u017euje posebno razmatranje i uskoro \u0107e postati tema posebnog \u010dlanka. Tamo \u0107emo se detaljnije posvetiti tehni\u010dkim aspektima i razmotriti logiku na\u0161ih akcija prilikom njegove izrade. No, sada nastavimo prikazivati infrastrukturu vi\u0161e shematski, jer va\u0161e pa\u017enje, po\u0161tovani \u010ditatelji, nije beskona\u010dno.<\/p>\n<p><b>Serveri za isporuku videa <\/b>evoluiraju brzo, zbog \u010dega ula\u017eemo mnogo napora. Dok smo ranije koristili prete\u017eno 2U servere sa 4-5 mre\u017enih kartica, svaka s po dva 10G porta, sada se ve\u0107i dio prometa isporu\u010duje s 1U servera, u kojima se nalaze 2-3 kartice, svaka s po dva 25G porta. Cijene kartica s 10G i 25G gotovo su izjedna\u010dene, a br\u017ea rje\u0161enja omogu\u0107uju isporuku putem 10G, kao i 25G. Rezultat je o\u010dita u\u0161teda: manje komponenti servera i kablova za povezivanje \u2013 ni\u017ea cijena (i ve\u0107a pouzdanost), komponente zauzimaju manje prostora u ormaru \u2013 omogu\u0107eno je smje\u0161tanje ve\u0107eg broja servera na istu povr\u0161inu i, posljedi\u010dno, smanjena je cijena najma.<\/p>\n<p>Ali va\u017enija je dobitak u brzini! Sada mo\u017eemo s 1U isporu\u010divati vi\u0161e od 100G! I to u situaciji kada neki veliki ruski projekti nazivaju \"postignu\u0107em\" isporuku od 40G s 2U. \u017delimo njihove probleme!<\/p>\n<p><img decoding=\"async\" alt=\"Kako je Uma.Tech razvijala infrastrukturu\" src=\"\/wp-content\/uploads\/2020\/07\/adfe46a7dc932c6c9d33718555c04189.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nNapominjemo da generaciju mre\u017enih kartica koje mogu raditi samo na 10G i dalje koristimo. Ova oprema stabilno radi i dobro nam je poznata, stoga je nismo bacili, ve\u0107 smo joj prona\u0161li novu primjenu. Ove komponente smo instalirali u servere za pohranu videa, kojima ve\u0107 za u\u010dinkovito funkcioniranje o\u010digledno nedostaje jedan ili dva 1G su\u010delja, a ovdje su 10G kartice postale relevantne.<\/p>\n<p><b>Sustavi za pohranu podataka<\/b> tako\u0111er rastu. Tijekom protekle petogodi\u0161njice pre\u0161li smo s dvanaest diskova (12x HDD 2U) na trideset i \u0161est diskova (36x HDD 4U). Ove velike \u201ekutije\u201c neki se boje koristiti, jer u slu\u010daju kvara jednog takvog \u0161asija mo\u017ee do\u0107i do opasnosti za performanse \u2013 pa \u010dak i radnu sposobnost! \u2013 cijelog sustava. No, to se kod nas ne\u0107e dogoditi: osigurali smo rezervaciju na razini geografski distribuiranih kopija podataka. Rasporedili smo \u0161asije po razli\u010ditim data centrima \u2013 ukupno koristimo tri \u2013 i to isklju\u010duje pojavu problema kako u slu\u010daju kvara \u0161asija, tako i pri padu platforme.<\/p>\n<p><img decoding=\"async\" alt=\"Kako je Uma.Tech razvijala infrastrukturu\" src=\"\/wp-content\/uploads\/2020\/07\/d262ccfa27883b6e16419beb69a9e366.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nNaravno, taj pristup u\u010dinio je hardverski RAID suvi\u0161nim, od kojeg smo se odrekli. Osloba\u0111anjem od suvi\u0161nosti, istovremeno smo pove\u0107ali pouzdanost sustava, pojednostaviv\u0161i rje\u0161enje i ukloniv\u0161i jednu od potencijalnih to\u010daka kvara. Podsjetimo, na\u0161 S3D je \"samogradnja\". Na to smo se odlu\u010dili potpuno svjesno i rezultat nas je u potpunosti zadovoljio.<\/p>\n<p><b>Data centri<\/b> u proteklih pet godina nekoliko puta smo ih mijenjali. Od vremena pisanja prethodnog \u010dlanka, samo jedan data centar \u2013 DataLine \u2013 nismo mijenjali, dok su ostali zahtijevali zamjenu kako se na\u0161a infrastruktura razvijala. Svi preseljenja izme\u0111u platformi bila su planirana.<\/p>\n<p>Prije dvije godine migrirali smo unutar MMTS-9, prelaze\u0107i na platformu s kvalitetnom obnovom, dobrom klimatskom kontrolom, stabilnim napajanjem i bez pra\u0161ine, koja je prije le\u017eala u debelim slojevima na svim povr\u0161inama i obiluju\u0107e za\u010depljivala unutra\u0161njost na\u0161e opreme. Odabir kvalitete usluge \u2013 i izostanak pra\u0161ine! \u2013 bio je razlog na\u0161eg preseljenja.<\/p>\n<p><img decoding=\"async\" alt=\"Kako je Uma.Tech razvijala infrastrukturu\" src=\"\/wp-content\/uploads\/2020\/07\/a55336ead2ccb939915f8c93642132c9.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nGotovo uvijek \"jedno preseljenje jednako je dva po\u017eara\", ali problemi tijekom migracije svaki put su razli\u010diti. Ovoga puta glavna pote\u0161ko\u0107a preseljenja unutar jednog data centra \"osigurali\" su opti\u010dki razvodnici \u2013 njihovo me\u0111uspratno obilje bez svodnih veza s jedne strane operatera telekomunikacija. Proces a\u017euriranja i ponovnog razmje\u0161taja razvodnika (u \u010demu su nam pomogli in\u017eenjeri MMTS-9), bio je, mo\u017eda, najte\u017ei korak migracije.<\/p>\n<p>Druga migracija dogodila se prije godinu dana, 2019. godine preselili smo se iz ne ba\u0161 dobrog DC-a u O2xygen. Razlozi preseljenja bili su sli\u010dni onima navedenima gore, ali im se pridru\u017eio i problem neprivla\u010dnosti izvornog DC-a za operatore - mnoge pru\u017eatelje usluga morali smo 'dohva\u0107ati' do te to\u010dke vlastitim snagama.<\/p>\n<p><img decoding=\"async\" alt=\"Kako je Uma.Tech razvijala infrastrukturu\" src=\"\/wp-content\/uploads\/2020\/07\/1afeb3d5c080b388196d2d522cd540b1.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nMigracija 13 ormara na kvalitetnu lokaciju u MMTS-9 omogu\u0107ila je razvoj ove lokacije ne samo kao operatorske (par-tri ormara i 'proboji' operatera) nego i da je koriste kao jednu od glavnih. To je zna\u010dajno olak\u0161alo migraciju iz ne ba\u0161 dobrog DC-a - ve\u0107inu opreme iz njega prenijeli smo na drugu lokaciju, a O2xygen je dobio ulogu razvijaju\u0107e, \u0161alju\u0107i i tamo 5 ormara s opremom.<\/p>\n<p>Danas je O2xygen ve\u0107 potpuno funkcionalna lokacija, gdje su 'do\u0161li' potrebni operateri i nastavljaju se povezivati novi. O2xygen se tako\u0111er pokazao privla\u010dnim za operatere s obzirom na strate\u0161ki razvoj.<\/p>\n<p>Glavnu fazu preseljenja svakako provodimo tijekom jedne no\u0107i, a tijekom migracije unutar MMTS-9 i prema O2xygen pridr\u017eavali smo se ovog pravila. Isti\u010demo da pravilo 'preseljenje preko no\u0107i' strogo po\u0161tujemo neovisno o broju ormara! Dogodio se \u010dak jedan presedan kada smo premjestili 20 ormara i to tako\u0111er tijekom jedne no\u0107i. Migracija je dovoljno jednostavan proces koji zahtijeva pa\u017enju i dosljednost, ali postoje i neki trikovi kako u procesu pripreme, tako i tijekom preseljenja i postavljanja na novoj lokaciji. O migraciji u detalje spremni smo detaljno pri\u010dati, ako vas bude zanimalo.<\/p>\n<p><b>Rezultati<\/b> Peti razvojni planovi nam se svi\u0111aju. Zavr\u0161ili smo izgradnju nove otporne infrastrukture, raspore\u0111ene po tri centra za obradu podataka. Drasti\u010dno smo pove\u0107ali gusto\u0107u prijenosa - ako smo nedavno u\u017eivali u 40-80G s 2U, sada nam je norma davati 100G s 1U. Sada \u010dak i terabitni promet percipiramo kao svakodnevicu. Spremni smo nastaviti razvijati na\u0161u infrastrukturu, koja je postala fleksibilna i skalabilna.<\/p>\n<p><b>Pitanje: <\/b>O \u010demu da pri\u010damo u sljede\u0107im tekstovima, dragi \u010ditatelji? O tome za\u0161to smo po\u010deli stvarati samostalne sustave pohrane podataka? O mre\u017enoj jezdi i njenim osobinama? O trikovima i suptilnostima migracije izme\u0111u podatkovnih centara? O optimizaciji rje\u0161enja za isporuku pa\u017eljivim odabirom komponenti i finim pode\u0161avanjem parametara? O stvaranju otpornog rje\u0161enja putem vi\u0161ekratnog rezerviranja i horizontalnih mogu\u0107nosti skaliranja unutar podatkovnog centra, koje su ostvarene u strukturi od tri podatkovna centra?<\/p>\n<p><i>Autor: Petar Vinogradov \u2014 Tehni\u010dki direktor Uma.Tech <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/users\/hamsters\/\" class=\"user_link\">Mali glodavci<\/a><\/noindex> <\/i><br \/>\n<br \/>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/umatech\/blog\/513010\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041c\u044b \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u043b\u0438 \u043d\u043e\u0432\u044b\u0435 \u0441\u0435\u0440\u0432\u0438\u0441\u044b, \u0442\u0440\u0430\u0444\u0438\u043a \u0440\u043e\u0441, \u0437\u0430\u043c\u0435\u043d\u044f\u043b\u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u043b\u0438 \u043d\u043e\u0432\u044b\u0435 \u043f\u043b\u043e\u0449\u0430\u0434\u043a\u0438 \u0438 \u043f\u0435\u0440\u0435\u0434\u0435\u043b\u044b\u0432\u0430\u043b\u0438 \u0426\u041e\u0414\u044b \u2013 \u0430 \u0441\u0435\u0439\u0447\u0430\u0441 \u0440\u0430\u0441\u0441\u043a\u0430\u0436\u0435\u043c \u044d\u0442\u0443 \u0438\u0441\u0442\u043e\u0440\u0438\u044e, \u0441 \u043d\u0430\u0447\u0430\u043b\u043e\u043c \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0437\u043d\u0430\u043a\u043e\u043c\u0438\u043b\u0438 \u0432\u0430\u0441 \u043f\u044f\u0442\u044c \u043b\u0435\u0442 \u043d\u0430\u0437\u0430\u0434. \u041f\u044f\u0442\u044c \u043b\u0435\u0442 \u2013 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u043d\u043e\u0435 \u0432\u0440\u0435\u043c\u044f \u0434\u043b\u044f \u043f\u043e\u0434\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u043c\u0435\u0436\u0443\u0442\u043e\u0447\u043d\u044b\u0445 \u0438\u0442\u043e\u0433\u043e\u0432. \u041f\u043e\u044d\u0442\u043e\u043c\u0443 \u043c\u044b \u0440\u0435\u0448\u0438\u043b\u0438 \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u0442\u044c \u043e \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0438 \u043d\u0430\u0448\u0435\u0439 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0437\u0430 \u043f\u044f\u0442\u0438\u043b\u0435\u0442\u043a\u0443 \u043f\u0440\u043e\u0448\u043b\u0430 \u0443\u0434\u0438\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u044b\u0439 \u043f\u0443\u0442\u044c \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u044b\u043c \u043c\u044b [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":90282,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-90281","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041c\u044b \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u043b\u0438 \u043d\u043e\u0432\u044b\u0435 \u0441\u0435\u0440\u0432\u0438\u0441\u044b, \u0442\u0440\u0430\u0444\u0438\u043a \u0440\u043e\u0441, \u0437\u0430\u043c\u0435\u043d\u044f\u043b\u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u043b\u0438 \u043d\u043e\u0432\u044b\u0435 \u043f\u043b\u043e\u0449\u0430\u0434\u043a\u0438 \u0438 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