{"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\/et\/blog\/news\/paypal-otkryl-kod-subd-junodb","title":{"rendered":"PayPal avas JunoDB andmebaasi allika koodi","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

PayPal avas oma avatud l\u00e4htekoodiga talletuslike andmebaasi JunoDB, mis manipuleerib andmetega v\u00f5tme-v\u00e4\u00e4rtuse formaadis. S\u00fcsteem on algselt projekteeritud k\u00f5rgendatud turvalisuse, horisontaalse skaleeritavuse, talitlush\u00e4irete taluvuse ja v\u00f5imega t\u00f6\u00f6delda sadu tuhandeid samasuguseid \u00fchendusi prognoositavate viivitustega. PayPalis on praktiliselt k\u00f5ik teenused, alates kasutajate sisselogimisest kuni rahatehingute t\u00f6\u00f6tlemiseni, seotud JunoDB-ga. Projekti kood on kirjutatud Go keeles (klientraamatukogu Java-s) ja seda jagatakse Apache 2.0 litsentsi alusel. Edasiarendamisel v\u00f5etakse vastu muudatused, parandused ja t\u00e4iendused kogukonnalt. <\/p>\n

JunoDB arhitektuur p\u00f5hineb koormuse tasandamise kasutamisel, mis v\u00f5tab vastu p\u00e4ringud klientrakendustelt ja jagab need edasi proxy-serverite vahel, mis samal ajal \u00fchenduvad andmehoidla grupiga. serverid<\/a> Iga proxy-server loob \u00fchendused kohe k\u00f5igi serveritega<\/a> andmehoidlatega ja suunab p\u00e4ringud andmehoidla serverite gruppi, tuginedes sektsioonide indekseerimisele, mis salvestatakse jaotatud konfiguratsioonihalduss\u00fcsteemis etcd.

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

Andmed jaotatakse ja siduvad neid andmehoidlatele kasutades hajutatud indekseerimist, mis v\u00e4hendab andmete liikumist klastris s\u00f5lmede suurendamise v\u00f5i v\u00e4hendamise korral. Talitlush\u00e4irete taluvuse tagamiseks kopeeritakse iga andmepartii mitmele andmehoidla s\u00f5lmele, mis v\u00f5imaldab teavet s\u00e4ilitada \u00fcksikute serverite rikke korral. Toetatakse territoriaalselt jaotatud talletusi, kus s\u00f5lmede grupid on paigutatud erinevatesse andmekeskustesse.

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

Andmed talletatakse andmehoidla s\u00f5lmedes kas operatiivm\u00e4lu v\u00f5i kohaliku salvestuss\u00fcsteemi p\u00f5hjal, kasutades RocksDB raamatukogu. P\u00fcsivalt salvestamise korral talletatakse andmed kr\u00fcpteeritud kujul (kr\u00fcpteerimise v\u00f5ti v\u00f5ib olla m\u00e4\u00e4ratud nii kliendi poolt kui ka proxy tasandil).

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

Rakendustest andmebaasile juurdep\u00e4\u00e4suks on saadaval klienditeek, mis pakub API-d rakenduste jaoks, mis on kirjutatud Java, Go ja C++ keeltes. Kliendi osa on maksimaalselt lihtsustatud, keeruline loogika ja seaded on v\u00f5imaluse korral viidud andmebaasi poole. Suhtlemine kliendi ja koormuse tasakaalustaja v\u00f5i proxy vahel toimub kr\u00fcpteeritud suhtluskanali kaudu. Halduseks ja p\u00e4ringute saatmiseks on v\u00f5imalik kasutada k\u00e4surealiidest, mis tagab k\u00f5ik kliendi API v\u00f5imalused. <\/p>\n

S\u00fcsteem on projekteeritud t\u00f6\u00f6tlema p\u00e4ringuid ettearvatava madala latentsusega. N\u00e4iteks kolmest salvestusnode ja \u00fchest proxy'st koosnev klaster, mis on loodud keskkondadest n1-highmem-32 (32 CPU Intel Xeon 2.30GHz, 214G RAM ja 450G SSD-p\u00f5hise salvestust), suudab pakkuda fikseeritud latentsust, mis ei \u00fcleta 2.5 ms 95% juhtudest ja 16 ms 99% puhul, t\u00f6\u00f6tades 200 000 samaaegse TLS-\u00fchenduse ja 15 000 p\u00e4ringu vooguga sekundis (3000 samaaegse \u00fchenduse ja 80 000 p\u00e4ringu voogu t\u00f6\u00f6tlemisel ei \u00fcletanud latentsus 6 ms 95% juhtudest ja 15 ms 99% puhul). PayPalis teenindavad JunoDB p\u00f5hised teenused umbes 350 miljardit p\u00e4ringut p\u00e4evas.

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

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f PayPal \u043e\u0442\u043a\u0440\u044b\u043b\u0430 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u043e\u0442\u043a\u0430\u0437\u043e\u0443\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0439 \u0421\u0423\u0411\u0414 JunoDB, \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u0443\u044e\u0449\u0435\u0439 \u0434\u0430\u043d\u043d\u044b\u043c\u0438 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 \u043a\u043b\u044e\u0447-\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435. \u0421\u0438\u0441\u0442\u0435\u043c\u0430 \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u0441\u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0430 \u0441 \u043e\u0433\u043b\u044f\u0434\u043a\u043e\u0439 \u043d\u0430 \u0432\u044b\u0441\u043e\u043a\u0443\u044e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c, \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\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 avas JunoDB andmebaasi l\u00e4htekoodi | ProHoster","description":"PayPal avas avatud l\u00e4htekoodiga talitlusv\u00f5imekuse andmebaasi JunoDB, mis manipuleerib andmetega v\u00f5tme-v\u00e4\u00e4rtuse 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