{"id":143998,"date":"2025-09-23T05:12:23","date_gmt":"2025-09-23T03:12:24","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/otkryt-kod-raspredelyonnoj-fajlovoj-sistemy-ternfs"},"modified":"2025-09-23T05:12:23","modified_gmt":"2025-09-23T03:12:24","slug":"otkryt-kod-raspredelyonnoj-fajlovoj-sistemy-ternfs","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/otkryt-kod-raspredelyonnoj-fajlovoj-sistemy-ternfs","title":{"rendered":"Otvoren\u00fd k\u00f3d distribuovanej s\u00faborovej syst\u00e9mu TernFS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Spolo\u010dnos\u0165 XTX Markets otvorila zdrojov\u00fd k\u00f3d s\u00faborov\u00e9ho syst\u00e9mu TernFS, navrhnut\u00e9ho na vytvorenie distribuovan\u00e9ho \u00falo\u017eiska, ktor\u00e9 pokr\u00fdva viacer\u00e9 geograficky rozdelen\u00e9 d\u00e1tov\u00e9 centr\u00e1 a je schopn\u00e9 uklada\u0165 a\u017e desiatky exabajtov \u00fadajov, trili\u00f3ny s\u00faborov a stovky mili\u00e1rd adres\u00e1rov, s ktor\u00fdmi m\u00f4\u017eu s\u00fa\u010dasne interagova\u0165 mili\u00f3ny klientov. K\u00f3d projektu je nap\u00edsan\u00fd v jazykoch C++ a Go a je distribuovan\u00fd pod licenciou GPLv2. \u0160pecifik\u00e1cie protokolu a klientsk\u00e9 kni\u017enice s\u00fa dod\u00e1van\u00e9 pod licenciou Apache 2.0.    <\/p>\n<p>FS je optimalizovan\u00e1 pre za\u0165a\u017eenia charakteristick\u00e9 pre syst\u00e9my strojov\u00e9ho u\u010denia \u2014 z\u00e1pis a \u010d\u00edtanie s\u00faborov, ktor\u00e9 nie s\u00fa po vytvoren\u00ed menen\u00e9 a obsahuj\u00fa viac ako nieko\u013eko megabajtov d\u00e1t. FS nie je ur\u010den\u00e1 na \u010dast\u00e9 vytv\u00e1ranie nov\u00fdch adres\u00e1rov a \u010dast\u00e9 pres\u00favanie s\u00faborov medzi adres\u00e1rmi. S\u00fa pr\u00edtomn\u00e9 mo\u017enosti na obnovu omylom odstr\u00e1nen\u00fdch s\u00faborov alebo adres\u00e1rov, ako aj na nastavenie polit\u00edk \u00fapln\u00e9ho nezvratn\u00e9ho odstr\u00e1nenia. Obsah FS m\u00f4\u017ee by\u0165 replikovan\u00fd medzi viacer\u00fdmi d\u00e1tov\u00fdmi centrami v r\u00f4znych regi\u00f3noch. Uzly \u00falo\u017eiska m\u00f4\u017eu zah\u0155\u0148a\u0165 r\u00f4zne typy ulo\u017eenia (na b\u00e1ze diskov a flash pam\u00e4te).      <\/p>\n<p>Jedn\u00fdm z po\u017eiadaviek pri projektovan\u00ed bolo absencia jedine\u010dn\u00e9ho bodu zlyhania a zabezpe\u010denie vysokej spo\u013eahlivosti \u00falo\u017eiska \u2014 havarijn\u00e9 vypnutia energie nesm\u00fa vies\u0165 k po\u0161kodeniu FS a s\u00fabory nem\u00f4\u017eu by\u0165 zap\u00edsan\u00e9 \u010diasto\u010dne (na \u010d\u00edtanie s\u00fa k dispoz\u00edcii iba \u00faplne zap\u00edsan\u00e9 s\u00fabory). Syst\u00e9m je odoln\u00fd vo\u010di zlyhaniu jednotliv\u00fdch \u00falo\u017e\u00edsk, uzlov s metad\u00e1tami a uzlov \u00falo\u017eiska. Mo\u017en\u00e1 je \u00fadr\u017eba \u00falo\u017eiska bez zastavenia prev\u00e1dzky.       <\/p>\n<p>Zav\u00e1dzanie \u00falo\u017eiska na b\u00e1ze TernFS v spolo\u010dnosti XTX Markets sa za\u010dalo v lete 2023 po 1,5 roka v\u00fdvoja FS. V polovici roku 2024 boli v\u0161etky syst\u00e9my strojov\u00e9ho u\u010denia XTX Markets prelo\u017een\u00e9 na TernFS. V s\u00fa\u010dasnosti \u00falo\u017eisko tvor\u00ed viac ako 30 tis\u00edc diskov a 10 tis\u00edc flash pam\u00e4t\u00ed umiestnen\u00fdch v troch d\u00e1tov\u00fdch centr\u00e1ch. Celkov\u00fd objem uchov\u00e1van\u00fdch d\u00e1t sa odhaduje na 500 petabajtov a v\u00fdkon pri \u0161pi\u010dke \u2014 nieko\u013eko petabajtov za sekundu. \u00dalo\u017eisko sa pou\u017e\u00edva vo clustre, ktor\u00fd m\u00e1 viac ako 100 tis\u00edc v\u00fdpo\u010dtov\u00fdch uzlov. Po\u010das dvoch rokov prev\u00e1dzky nevznikli incidenty ved\u00face k strate d\u00e1t.      <\/p>\n<p>Medzi obmedzeniami TernFS patr\u00ed: zap\u00edsan\u00e9 s\u00fabory nie je mo\u017en\u00e9 upravova\u0165; n\u00edzka efektivita pri pr\u00e1ci so s\u00fabormi men\u0161\u00edmi ako 2 MB; n\u00edzka v\u00fdkonnos\u0165 oper\u00e1ci\u00ed vytv\u00e1rania a mazania adres\u00e1rov; absencia rozdelenia pr\u00edstupov\u00fdch pr\u00e1v.      <\/p>\n<p>Komponenty, tvoriace cluster ukladania TernFS:  <\/p>\n<ul>\n<li class=\"l\"> Uzly ukladania metad\u00e1t, zodpovedaj\u00face za spr\u00e1vu inform\u00e1ci\u00ed o \u0161trukt\u00fare adres\u00e1rov a atrib\u00fatoch s\u00faborov.\n<li class=\"l\"> Uzly koordin\u00e1cie pr\u00e1ce (CDC \u2014 Cross-Directory Coordinator), vykon\u00e1vaj\u00face transakcie pokr\u00fdvaj\u00face r\u00f4zne adres\u00e1re.\n<li class=\"l\"> Slu\u017eby ukladania, zabezpe\u010duj\u00face ukladanie obsahu s\u00faborov.\n<li class=\"l\"> Register, obsahuj\u00faci inform\u00e1cie o v\u0161etk\u00fdch ostatn\u00fdch slu\u017eb\u00e1ch a vykon\u00e1vaj\u00faci monitoring ich \u010dinnosti.\n<li class=\"l\"> Klientske slu\u017eby pre pr\u00edstup pou\u017e\u00edvate\u013eov k FS:\n<ul>\n<li class=\"l\"> ternweb \u2014 pr\u00edstup k \u00falo\u017eisku cez Web API.\n<li class=\"l\"> terncli \u2014 rozhranie pr\u00edkazov\u00e9ho riadku.\n<li class=\"l\"> ternfs.ko \u2014 modul pre jadro Linuxu, ktor\u00fd umo\u017e\u0148uje montova\u0165 \u00falo\u017eisko na pr\u00e1cu ako s lok\u00e1lnou FS.\n<li class=\"l\"> ternfuse \u2014 implement\u00e1cia klienta pre pr\u00e1cu s FS, vyu\u017e\u00edvaj\u00faca subsyst\u00e9m FUSE.\n<li class=\"l\"> terns3 \u2014 implement\u00e1cia API Amazon S3.    <\/ul>\n<li class=\"l\"> Pozadie procesy:\n<ul>\n<li class=\"l\"> GC \u2014 spr\u00e1vca pam\u00e4te, uvo\u013e\u0148uj\u00faci pre\u010derpan\u00e9 sn\u00edmky (vymazan\u00e9, ale nevy\u010disten\u00e9 s\u00fabory) a \u010distiaci bloky pre nezvratne odstr\u00e1nen\u00e9 s\u00fabory.\n<li class=\"l\"> scrubber \u2014 zistenie degrad\u00e1cie d\u00e1t a ich obnovenie.\n<li class=\"l\">  migrator \u2014 vyl\u00fa\u010denie po\u0161koden\u00fdch diskov zo skladu.    <\/ul>\n<\/ul>\n<p>    <center><img decoding=\"async\" alt=\"Otvoren\u00fd k\u00f3d distribuovanej s\u00faborovej syst\u00e9mu TernFS\" src=\"\/wp-content\/uploads\/2025\/09\/e9f0d7ab4fdda1c4db9e7f0809b914da.png\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63927\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f XTX Markets \u043e\u0442\u043a\u0440\u044b\u043b\u0430 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0439 \u043a\u043e\u0434 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b TernFS, \u0441\u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u0433\u043e \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0430, \u043e\u0445\u0432\u0430\u0442\u044b\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0442\u0435\u0440\u0440\u0438\u0442\u043e\u0440\u0438\u0430\u043b\u044c\u043d\u043e \u0440\u0430\u0437\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u0434\u0430\u0442\u0430\u0446\u0435\u043d\u0442\u0440\u043e\u0432 \u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0433\u043e \u0445\u0440\u0430\u043d\u0438\u0442\u044c \u0434\u043e \u0434\u0435\u0441\u044f\u0442\u043a\u043e\u0432 \u044d\u043a\u0441\u0430\u0431\u0430\u0439\u0442 \u0434\u0430\u043d\u043d\u044b\u0445, \u0442\u0440\u0438\u043b\u043b\u0438\u043e\u043d\u043e\u0432 \u0444\u0430\u0439\u043b\u043e\u0432 \u0438 \u0441\u043e\u0442\u0435\u043d \u043c\u0438\u043b\u043b\u0438\u0430\u0440\u0434\u043e\u0432 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u043e\u0432, \u0441 \u043a\u043e\u0442\u043e\u0440\u044b\u043c\u0438 \u043c\u043e\u0433\u0443\u0442 \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u0442\u044c \u043c\u0438\u043b\u043b\u0438\u043e\u043d\u044b \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0430\u0445 \u0421++ \u0438 Go \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv2. \u0421\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 \u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":143999,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-143998","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f XTX Markets \u043e\u0442\u043a\u0440\u044b\u043b\u0430 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0439 \u043a\u043e\u0434 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b TernFS, 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