{"id":108647,"date":"2023-05-21T12:49:09","date_gmt":"2023-05-21T10:49:12","guid":{"rendered":"https:\/\/prohoster.info\/?p=108647"},"modified":"2023-05-22T10:28:52","modified_gmt":"2023-05-22T08:28:52","slug":"paypal-otkryl-kod-subd-junodb","status":"publish","type":"post","link":"https:\/\/prohoster.info\/lv\/blog\/news\/paypal-otkryl-kod-subd-junodb","title":{"rendered":"PayPal ir atv\u0113ris Datu b\u0101zes JunoDB kodu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Uz\u0146\u0113mums PayPal ir public\u0113jis avota kodu iztur\u012bgai datu b\u0101zei JunoDB, kas apstr\u0101d\u0101 datus atsl\u0113ga-v\u0113rt\u012bba form\u0101t\u0101. Sist\u0113ma s\u0101kotn\u0113ji projekt\u0113ta ar \u0146em\u0161anu v\u0113r\u0101 augstu dro\u0161\u012bbu, horizont\u0101lu m\u0113rogojam\u012bbu, iztur\u012bgumu un sp\u0113ju apstr\u0101d\u0101t simtiem t\u016bksto\u0161u vienlaic\u012bgu savienojumu ar prognoz\u0113jamu aizturi. PayPal faktiski visi pakalpojumi, s\u0101kot no lietot\u0101ju pieteik\u0161an\u0101s l\u012bdz finan\u0161u dar\u012bjumu apstr\u0101dei, ir atkar\u012bgi no JunoDB. Projekta kods ir uzrakst\u012bts valod\u0101 Go (klientu bibliot\u0113ka Java) un tiek izplat\u012bts saska\u0146\u0101 ar Apache 2.0 licenci. Turpm\u0101kaj\u0101 att\u012bst\u012bb\u0101 tiks pie\u0146emti labojumi, uzlabojumi un izmai\u0146as no kopienas. <\/p>\n

JunoDB arhitekt\u016bra balst\u0101s uz slodzes balans\u0113t\u0101ja izmanto\u0161anu, kas pie\u0146em piepras\u012bjumus no klientu lietojumprogramm\u0101m un sadala tos starp starpserveriem, kas vienlaic\u012bgi piek\u013c\u016bst grupai serveriem<\/a> uzglab\u0101\u0161anas izvieto\u0161anas laik\u0101. Katrs starpserveris izveido savienojumus ar visiem serveriem<\/a> uzglab\u0101\u0161anas serveriem un novirza piepras\u012bjumus grupai uzglab\u0101\u0161anas serveru, pamatojoties uz fragment\u0101cijas indeksu, kas tiek glab\u0101ts izplat\u012bt\u0101 konfigur\u0101cijas uzglab\u0101\u0161anas sist\u0113m\u0101 etcd.

\"PayPal<\/center> <\/p>\n

Dati tiek fragment\u0113ti un sasaist\u012bti ar uzglab\u0101\u0161anas mezgliem, izmantojot hashes, kas samazina datu p\u0101rvieto\u0161anu, palielinoties vai samazinoties mezglu skaitam klaster\u012b. Lai nodro\u0161in\u0101tu iztur\u012bgumu, katrs datu bloks tiek replik\u0113ts vair\u0101kos uzglab\u0101\u0161anas mezglos, \u013caujot saglab\u0101t inform\u0101ciju, ja atsevi\u0161\u0137i serveri izkr\u012bt. Tiek atbalst\u012bta teritori\u0101li sadal\u012btu uzglab\u0101\u0161anas sist\u0113mu izveide, kur grupas mezgli ir izvietoti da\u017e\u0101dos datu centros.

\"PayPal<\/center> <\/p>\n

Uzglab\u0101\u0161anas mezglos dati tiek glab\u0101ti operat\u012bvaj\u0101 atmi\u0146\u0101 vai viet\u0113j\u0101 uzglab\u0101\u0161an\u0101, pamatojoties uz bibliot\u0113ku RocksDB. Uz past\u0101v\u012bgu glab\u0101\u0161anu tiek \u0161ifr\u0113ti dati (\u0161ifr\u0113\u0161anas atsl\u0113ga var tikt noteikta gan no klienta, gan noteikta l\u012bmen\u012b starpserveriem).

\"PayPal<\/center> <\/p>\n

Lai piek\u013c\u016btu datu b\u0101zei no lietojumprogramm\u0101m, tiek pieg\u0101d\u0101ta klienta bibliot\u0113ka, kas nodro\u0161ina API Java, Go un C++ valod\u0101s. Klienta da\u013ca ir maksim\u0101li vienk\u0101r\u0161ota, bet sare\u017e\u0123\u012bt\u0101 lo\u0123ika un iestat\u012bjumi ir p\u0101rcelti uz SDB pusi. Sazi\u0146a starp klientu un slodzes balans\u0113t\u0101ju vai proksi notiek, izmantojot \u0161ifru kan\u0101lu. Lai p\u0101rvald\u012btu un nos\u016bt\u012btu piepras\u012bjumus, var izmantot komandrindas interfeisu, kas atspogu\u013co visas klienta API iesp\u0113jas. <\/p>\n

Sist\u0113ma ir projekt\u0113ta, lai apstr\u0101d\u0101tu piepras\u012bjumus ar prognoz\u0113jami zemu latentumu, piem\u0113ram, klasteris no trim uzglab\u0101\u0161anas mezgliem un viena proksi, kas izveidots no vides n1-highmem-32 (32 CPU Intel Xeon 2.30GHz, 214G RAM un 450G SSD uzglab\u0101\u0161ana), sp\u0113j nodro\u0161in\u0101t stabilus latentumus, kas nep\u0101rsniedz 2.5 ms 95% gad\u012bjumu un 16 ms 99% gad\u012bjumos, apstr\u0101d\u0101jot 200 t\u016bksto\u0161us vienlaic\u012bgu TLS savienojumu un pl\u016bsmu 15 t\u016bksto\u0161us piepras\u012bjumu sekund\u0113 (pie 3000 vienlaic\u012bgiem savienojumiem un pl\u016bsm\u0101 80 t\u016bksto\u0161i piepras\u012bjumu sekund\u0113 latentums nep\u0101rsniedza 6 ms 95% gad\u012bjumu un 15 ms 99%). PayPal pakalpojumi, kas balst\u012bti uz JunoDB, apkalpo apm\u0113ram 350 miljardus piepras\u012bjumu dien\u0101.

\"PayPal<\/center>
\n
Avots: opennet.lv<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u0443\u044e \u043c\u0430\u0441\u0448\u0442\u0430\u0431\u0438\u0440\u0443\u0435\u043c\u043e\u0441\u0442\u044c, \u043e\u0442\u043a\u0430\u0437\u043e\u0443\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0441\u0442\u044c \u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u044c \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0442\u044c \u0441\u043e\u0442\u043d\u0438 \u0442\u044b\u0441\u044f\u0447 \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439 \u0441 \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u0443\u0435\u043c\u044b\u043c\u0438 \u0437\u0430\u0434\u0435\u0440\u0436\u043a\u0430\u043c\u0438. \u0412 PayPal \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0432\u0441\u0435 \u0441\u0435\u0440\u0432\u0438\u0441\u044b, \u043e\u0442 \u0432\u0445\u043e\u0434\u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0434\u043e \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u044b\u0445 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439, \u0437\u0430\u0432\u044f\u0437\u0430\u043d\u044b \u043d\u0430 JunoDB. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Go […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":108648,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-108647","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47PayPal ir atv\u0113ris JunoDB datu b\u0101zes kodu | ProHoster","description":"Uz\u0146\u0113mums PayPal ir atv\u0113ris avota kodus iztur\u012bgajai datu b\u0101zei JunoDB, kas manipul\u0113 ar datiem atsl\u0113gas-v\u0113rt\u012bbas 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