{"id":140411,"date":"2025-08-11T17:12:00","date_gmt":"2025-08-11T15:12:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-subd-redis-8-2"},"modified":"2025-08-11T17:12:00","modified_gmt":"2025-08-11T15:12:01","slug":"vypusk-subd-redis-8-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-subd-redis-8-2","title":{"rendered":"Vyd\u00e1n\u00ed datab\u00e1zov\u00e9ho syst\u00e9mu Redis 8.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byl zve\u0159ejn\u011bn release datab\u00e1zov\u00e9ho syst\u00e9mu Redis 8.2, kter\u00fd pat\u0159\u00ed do kategorie NoSQL syst\u00e9m\u016f. Redis nab\u00edz\u00ed funkce pro ukl\u00e1d\u00e1n\u00ed dat ve form\u00e1tu kl\u00ed\u010d\/hodnota, roz\u0161\u00ed\u0159en\u00e9 podporou strukturovan\u00fdch datov\u00fdch form\u00e1t\u016f, jako jsou seznamy, hash a mno\u017einy, a tak\u00e9 mo\u017enost\u00ed vykon\u00e1vat skripty v jazyce Lua na serveru. K\u00f3d projektu je naps\u00e1n v jazyce C a je distribuov\u00e1n pod licenc\u00ed AGPLv3.    <\/p>\n<p>Datab\u00e1zov\u00fd syst\u00e9m Redis podporuje transakce, kter\u00e9 umo\u017e\u0148uj\u00ed prov\u00e9st skupinu p\u0159\u00edkaz\u016f najednou, zaru\u010duj\u00edc\u00ed konzistentnost a po\u0159ad\u00ed (p\u0159\u00edkazy z jin\u00fdch po\u017eadavk\u016f se nemohou vm\u00edsit) prov\u00e1d\u011bn\u00ed dan\u00e9ho souboru p\u0159\u00edkaz\u016f, a v p\u0159\u00edpad\u011b probl\u00e9m\u016f umo\u017e\u0148uj\u00ed vr\u00e1tit zm\u011bny zp\u011bt. V\u0161echna data se pln\u011b ukl\u00e1daj\u00ed do opera\u010dn\u00ed pam\u011bti. Klientsk\u00e9 knihovny jsou k dispozici pro v\u011bt\u0161inu popul\u00e1rn\u00edch jazyk\u016f, v\u010detn\u011b Perlu, Pythonu, PHP, Javy, Ruby a Tcl.     <\/p>\n<p>Pro spr\u00e1vu dat se poskytuj\u00ed p\u0159\u00edkazy jako inkrementace\/dekrementace, standardn\u00ed operace nad seznamy a mno\u017einami (sjednocen\u00ed, pr\u016fnik), p\u0159ejmenov\u00e1n\u00ed kl\u00ed\u010d\u016f, v\u00edcen\u00e1sobn\u00e9 v\u00fdb\u011bry a funkce pro \u0159azen\u00ed. Podporov\u00e1ny jsou dva re\u017eimy ukl\u00e1d\u00e1n\u00ed: periodick\u00e1 synchronizace dat na disk a veden\u00ed logu zm\u011bn na disku. V druh\u00e9m p\u0159\u00edpad\u011b je zaru\u010dena \u00fapln\u00e1 ochrana v\u0161ech zm\u011bn. Je mo\u017en\u00e9 organizovat replikaci dat v re\u017eimu master-slave na n\u011bkolik <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/\"   title=\"servery\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1778\">servery<\/a>, prov\u00e1d\u011bn\u00e1 v neblokovan\u00e9m re\u017eimu. K dispozici je tak\u00e9 re\u017eim v\u00fdm\u011bny zpr\u00e1v \u201epublikov\u00e1n\u00ed\/p\u0159edplatn\u00e9\u201c, p\u0159i kter\u00e9m se vytvo\u0159\u00ed kan\u00e1l, jeho\u017e zpr\u00e1vy se \u0161\u00ed\u0159\u00ed klient\u016fm na z\u00e1klad\u011b p\u0159edplatn\u00e9ho.      <\/p>\n<p>Kl\u00ed\u010dov\u00e9 zm\u011bny v Redis 8.2:   <\/p>\n<ul>\n<li class=\"l\"> Byla provedena optimalizace v\u00edce ne\u017e 70 p\u0159\u00edkaz\u016f, kter\u00e9 nyn\u00ed funguj\u00ed rychleji ne\u017e v Redis 8.0. Nap\u0159\u00edklad p\u0159\u00edkaz BITCOUNT zrychlil o 35 %, zat\u00edmco p\u0159\u00edkazy pro operace se seznamy LINSERT, LREM a LPOS zrychlily o 25 %. 17 z optimalizovan\u00fdch p\u0159\u00edkaz\u016f zrychlilo alespo\u0148 o 5 %, a 52 alespo\u0148 o 2 %.     <center><img decoding=\"async\" alt=\"Vyd\u00e1n\u00ed datab\u00e1zov\u00e9ho syst\u00e9mu Redis 8.2\" src=\"\/wp-content\/uploads\/2025\/08\/ef607d5c12c5d52f1b5377c0f5fd604f.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Byly provedeny optimalizace zpracov\u00e1n\u00ed soub\u011b\u017en\u00fdch operac\u00ed a v\u00edcethern\u00ed vstup\/v\u00fdstup, co\u017e umo\u017enilo zv\u00fd\u0161en\u00ed po\u010dtu zpracov\u00e1van\u00fdch operac\u00ed za sekundu o 49 % ve zkou\u0161k\u00e1ch s 8 vl\u00e1kny p\u0159i distribuci z\u00e1t\u011b\u017ee 20 % z\u00e1pis\u016f a 80 % \u010dten\u00ed. Na jednom <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/dts-newyork\/\"   title=\"serveru\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2821\">serveru<\/a> se poda\u0159ilo p\u0159ekonat hranici 1 milionu zpracov\u00e1van\u00fdch operac\u00ed za sekundu.    <center><img decoding=\"async\" alt=\"Vyd\u00e1n\u00ed datab\u00e1zov\u00e9ho syst\u00e9mu Redis 8.2\" src=\"\/wp-content\/uploads\/2025\/08\/70a2f9f52e4a8758bf5ca2b369022264.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Z\u00e1kladn\u011b byla zm\u011bn\u011bna metoda ukl\u00e1d\u00e1n\u00ed dat ve form\u00e1tu kl\u00ed\u010d\/hodnota \u2014 nyn\u00ed se pou\u017e\u00edv\u00e1 jednotn\u00e1 struktura kvobj, kter\u00e1 umo\u017e\u0148uje zabalit jm\u00e9no kl\u00ed\u010de, kr\u00e1tkou hodnotu a dobu \u017eivota do jednoho bloku alokovan\u00e9 pam\u011bti a vysta\u010dit si s jedn\u00edm odkazem na tuto strukturu v hash tabulk\u00e1ch, m\u00edsto odd\u011blen\u00fdch odkaz\u016f na kl\u00ed\u010de, data a TTL. P\u0159i ukl\u00e1d\u00e1n\u00ed kr\u00e1tk\u00fdch \u0159et\u011bzcov\u00fdch hodnot nov\u00fd zp\u016fsob ukl\u00e1d\u00e1n\u00ed umo\u017enil sn\u00ed\u017eit spot\u0159ebu pam\u011bti o 25-37 %.        <center><img decoding=\"async\" alt=\"Vyd\u00e1n\u00ed datab\u00e1zov\u00e9ho syst\u00e9mu Redis 8.2\" src=\"\/wp-content\/uploads\/2025\/08\/aa3563aab145549f518fae9f32779a9c.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Byla provedena optimalizace ukl\u00e1d\u00e1n\u00ed dat ve form\u00e1tu JSON, kter\u00e1 umo\u017enila sn\u00ed\u017eit spot\u0159ebu pam\u011bti o 25-67 % p\u0159i ukl\u00e1d\u00e1n\u00ed cel\u00fdch \u010d\u00edsel a \u010d\u00edsel s plovouc\u00ed desetinnou \u010d\u00e1rkou.\n<li class=\"l\"> Do mechanismu Streams, pou\u017e\u00edvan\u00e9ho pro zpracov\u00e1n\u00ed a ukl\u00e1d\u00e1n\u00ed proud\u016f zpr\u00e1v, byly p\u0159id\u00e1ny nov\u00e9 p\u0159\u00edkazy XACKDEL a XDELEX, kter\u00e9 zjednodu\u0161uj\u00ed pr\u00e1ci s proudy p\u0159ipojen\u00fdmi k n\u011bkolika p\u0159\u00edjemc\u016fm (skupiny spot\u0159ebitel\u016f). Tyto p\u0159\u00edkazy \u0159e\u0161\u00ed \u00falohu odstran\u011bn\u00ed zpr\u00e1vy a\u017e pot\u00e9, co bylo jej\u00ed p\u0159ijet\u00ed potvrzeno v\u0161emi zpracovateli.\n<li class=\"l\"> Do p\u0159\u00edkazu BITOP, ur\u010den\u00e9ho pro prov\u00e1d\u011bn\u00ed bitov\u00fdch operac\u00ed, byly p\u0159id\u00e1ny nov\u00e9 logick\u00e9 oper\u00e1tory DIFF, DIFF1, ANDOR a ONE.\n<li class=\"l\"> Byl p\u0159id\u00e1n nov\u00fd typ index\u016f vektor\u016f SVS-VAMANA, kter\u00fd podporuje kompresi vektor\u016f.\n<li class=\"l\"> Byly p\u0159id\u00e1ny nov\u00e9 metriky: zat\u00ed\u017een\u00ed podle jednotliv\u00fdch slot\u016f a rozd\u011blen\u00ed velikost\u00ed kl\u00ed\u010d\u016f pro z\u00e1kladn\u00ed datov\u00e9 typy.        <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63709\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0421\u0423\u0411\u0414 Redis 8.2, \u043e\u0442\u043d\u043e\u0441\u044f\u0449\u0435\u0439\u0441\u044f \u043a \u043a\u043b\u0430\u0441\u0441\u0443 NoSQL-\u0441\u0438\u0441\u0442\u0435\u043c. Redis \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0434\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 \u043a\u043b\u044e\u0447\/\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435, \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u043d\u044b\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0444\u043e\u0440\u043c\u0430\u0442\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a \u0441\u043f\u0438\u0441\u043a\u0438, \u0445\u044d\u0448\u0438 \u0438 \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u0430, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c\u044e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0432-\u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Lua. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a \u0421\u0438 \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 AGPLv3. \u0421\u0423\u0411\u0414 Redis \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0438, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":140412,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-140411","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0421\u0423\u0411\u0414 Redis 8.2, \u043e\u0442\u043d\u043e\u0441\u044f\u0449\u0435\u0439\u0441\u044f \u043a \u043a\u043b\u0430\u0441\u0441\u0443 NoSQL-\u0441\u0438\u0441\u0442\u0435\u043c.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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