{"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\/hu\/blog\/news\/paypal-otkryl-kod-subd-junodb","title":{"rendered":"A PayPal nyilv\u00e1noss\u00e1gra hozta a JunoDB adatb\u00e1zis-kezel\u0151 k\u00f3dj\u00e1t.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A PayPal c\u00e9g megnyitotta a JunoDB hibajav\u00edt\u00f3 rel\u00e1ci\u00f3s adatb\u00e1zis-kezel\u0151 rendszer\u00e9nek forr\u00e1sk\u00f3dj\u00e1t, amely kulcs-\u00e9rt\u00e9k form\u00e1tumban kezeli az adatokat. A rendszer eredetileg magas biztons\u00e1gra, horizont\u00e1lis sk\u00e1l\u00e1zhat\u00f3s\u00e1gra, hibamentess\u00e9gre \u00e9s a sz\u00e1mos egyidej\u0171 kapcsolat feldolgoz\u00e1s\u00e1ra lett tervezve, el\u0151re l\u00e1that\u00f3 k\u00e9s\u00e9sekkel. A PayPal-n\u00e1l gyakorlatilag minden szolg\u00e1ltat\u00e1s, a felhaszn\u00e1l\u00f3k bejelentkez\u00e9s\u00e9t\u0151l kezdve a p\u00e9nz\u00fcgyi tranzakci\u00f3k feldolgoz\u00e1s\u00e1ig, a JunoDB-re \u00e9p\u00fcl. A projekt k\u00f3dj\u00e1t Go nyelven \u00edrt\u00e1k (a kliens k\u00f6nyvt\u00e1r Java nyelven) \u00e9s az Apache 2.0 licenc alatt terjesztik. A tov\u00e1bbi fejleszt\u00e9sek sor\u00e1n a k\u00f6z\u00f6ss\u00e9g \u00e1ltal beny\u00fajtott jav\u00edt\u00e1sokat, fejleszt\u00e9seket \u00e9s v\u00e1ltoztat\u00e1sokat is figyelembe fogj\u00e1k venni. <\/p>\n

A JunoDB architekt\u00far\u00e1ja egy terhel\u00e9seloszt\u00f3ra \u00e9p\u00fcl, amely a kliensalkalmaz\u00e1sokt\u00f3l \u00e9rkez\u0151 k\u00e9r\u00e9seket fogadja \u00e9s elosztja \u0151ket a proxy-szerverek k\u00f6z\u00f6tt, amelyek egyszerre t\u00f6bb t\u00e1rol\u00e1si csoporthoz kapcsol\u00f3dnak. szerverek<\/a> Minden proxy-szerver egyszerre minden t\u00e1rol\u00e1si csoporttal kapcsolatot l\u00e9tes\u00edt a k\u00e9r\u00e9s v\u00e9grehajt\u00e1sakor. szerverek<\/a> A k\u00e9rd\u00e9seket a t\u00e1rol\u00e1si csoport szervereihez ir\u00e1ny\u00edtja a szegment\u00e1l\u00e1si index alapj\u00e1n, amely a konfigur\u00e1ci\u00f3s etcd elosztott t\u00e1rol\u00e1si rendszerben tal\u00e1lhat\u00f3.

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

Az adatok szegment\u00e1lva vannak, \u00e9s t\u00e1rol\u00f3csom\u00f3pontokhoz k\u00f6t\u0151dnek, hash-el\u00e9s seg\u00edts\u00e9g\u00e9vel, ami cs\u00f6kkenti az adatok mozg\u00e1s\u00e1t a klaszter csom\u00f3pontok b\u0151v\u00edt\u00e9se vagy cs\u00f6kkent\u00e9se sor\u00e1n. A hibamentess\u00e9g biztos\u00edt\u00e1sa \u00e9rdek\u00e9ben a minden egyes adatcsomagot t\u00f6bb t\u00e1rol\u00f3csom\u00f3ponton replik\u00e1lnak, ami lehet\u0151v\u00e9 teszi az inform\u00e1ci\u00f3k meg\u0151rz\u00e9s\u00e9t egyes szerverek le\u00e1ll\u00e1sa eset\u00e9n. T\u00e1mogatott a f\u00f6ldrajzilag elosztott t\u00e1rol\u00f3k l\u00e9trehoz\u00e1sa, ahol a csom\u00f3pontok csoportjai k\u00fcl\u00f6nb\u00f6z\u0151 adatk\u00f6zpontokban helyezkednek el.

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

A t\u00e1rol\u00f3 csom\u00f3pontokon az adatok a mem\u00f3ri\u00e1ban vagy a helyi RocksDB alap\u00fa t\u00e1rol\u00f3ban helyezkednek el. Tart\u00f3s t\u00e1rol\u00e1s eset\u00e9n az adatokat titkos\u00edtott form\u00e1ban t\u00e1rolj\u00e1k (a titkos\u00edt\u00e1si kulcsot lehet \u00fcgyf\u00e9l \u00e1ltal meghat\u00e1rozni, vagy \u00e1ll\u00edthat\u00f3 a proxy szinten).

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

Az alkalmaz\u00e1sok adatb\u00e1zisokhoz val\u00f3 el\u00e9r\u00e9s\u00e9hez egy kliens k\u00f6nyvt\u00e1r \u00e1ll rendelkez\u00e9sre, amely API-t biztos\u00edt Java, Go \u00e9s C++ nyelv\u0171 alkalmaz\u00e1sokhoz. A kliens oldala a lehet\u0151 legegyszer\u0171bb, a bonyolult logika \u00e9s be\u00e1ll\u00edt\u00e1sok a lehet\u0151s\u00e9gekhez m\u00e9rten a DBMS oldal\u00e1ra ker\u00fclnek. A kliens \u00e9s a terhel\u00e9seloszt\u00f3 vagy proxy k\u00f6z\u00f6tti interakci\u00f3 titkos\u00edtott kapcsolat r\u00e9v\u00e9n val\u00f3sul meg. A vez\u00e9rl\u00e9shez \u00e9s k\u00e9r\u00e9sek k\u00fcld\u00e9s\u00e9hez parancssori fel\u00fclet haszn\u00e1lhat\u00f3, amely reproduk\u00e1lja a kliens API \u00f6sszes lehet\u0151s\u00e9g\u00e9t. <\/p>\n

A rendszer \u00fagy lett megtervezve, hogy el\u0151rejelzhet\u0151 alacsony k\u00e9sleltet\u00e9s\u0171 k\u00e9r\u00e9seket kezeljen, p\u00e9ld\u00e1ul egy h\u00e1rom t\u00e1rol\u00f3csom\u00f3pontb\u00f3l \u00e9s egy proxyb\u00f3l \u00e1ll\u00f3 klaszter, amely az n1-highmem-32 (32 CPU Intel Xeon 2.30GHz, 214G RAM \u00e9s 450G SSD alap\u00fa t\u00e1rol\u00f3) k\u00f6rnyezeteib\u0151l k\u00e9sz\u00fclt, k\u00e9pes volt 95% -ban 2,5 ms-n\u00e1l r\u00f6videbb k\u00e9sleltet\u00e9st \u00e9s 99% -ban 16 ms-t biztos\u00edtani 200 ezer egyidej\u0171 TLS-kapcsolat \u00e9s 15 ezer k\u00e9r\u00e9s m\u00e1sodpercenk\u00e9nti \u00e1raml\u00e1sa mellett (3000 egyidej\u0171 kapcsolattal \u00e9s 80 ezer k\u00e9r\u00e9s m\u00e1sodpercenk\u00e9nti \u00e1raml\u00e1ssal a k\u00e9sleltet\u00e9s 95% -ban nem haladta meg a 6 ms-t, m\u00edg 99% -ban 15 ms-t). A PayPal szolg\u00e1ltat\u00e1sok, amelyek JunoDB-n alapulnak, napi k\u00f6r\u00fclbel\u00fcl 350 milli\u00e1rd k\u00e9r\u00e9st kezelnek.

\"A<\/center>
\n
Forr\u00e1s: 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\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\udd47A PayPal megnyitotta a JunoDB DBMS forr\u00e1sk\u00f3dj\u00e1t | ProHoster","description":"A PayPal nyilv\u00e1noss\u00e1gra hozta a JunoDB elosztott, hibat\u0171r\u0151 DBMS forr\u00e1sk\u00f3dj\u00e1t, amely kulcs-\u00e9rt\u00e9k form\u00e1tumban kezeli az 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