{"id":101218,"date":"2021-09-07T22:22:36","date_gmt":"2021-09-07T20:22:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-subd-tarantool-2-8"},"modified":"2021-09-07T22:22:36","modified_gmt":"2021-09-07T20:22:36","slug":"vypusk-subd-tarantool-2-8","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-subd-tarantool-2-8","title":{"rendered":"Vyd\u00e1n\u00ed datab\u00e1zov\u00e9ho syst\u00e9mu Tarantool 2.8","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Nov\u00e1 verze datab\u00e1zov\u00e9ho syst\u00e9mu Tarantool 2.8 je nyn\u00ed k dispozici, nab\u00edzej\u00edc\u00ed trval\u00e9 ulo\u017een\u00ed dat s v\u00fddejem informac\u00ed z opera\u010dn\u00ed pam\u011bti (in-memory database). Datab\u00e1zov\u00fd syst\u00e9m kombinuje vysokou rychlost zpracov\u00e1n\u00ed dotaz\u016f, typickou pro NoSQL syst\u00e9my (nap\u0159\u00edklad Memcached a Redis), a spolehlivost tradi\u010dn\u00edch datab\u00e1zov\u00fdch syst\u00e9m\u016f (Oracle, MySQL a PostgreSQL). Tarantool je naps\u00e1n v jazyce C a umo\u017e\u0148uje vytv\u00e1\u0159et ulo\u017een\u00e9 procedury v jazyce Lua. K\u00f3d je \u0161\u00ed\u0159en pod licenc\u00ed BSD.    <\/p>\n<p>Datab\u00e1zov\u00fd syst\u00e9m umo\u017e\u0148uje efektivn\u011b pracovat s velk\u00fdmi objemy dat p\u0159i vysok\u00fdch z\u00e1t\u011b\u017e\u00edch. Mezi charakteristiky Tarantool pat\u0159\u00ed mo\u017enost vytv\u00e1\u0159et handlery v jazyce Lua (v\u010detn\u011b LuaJIT), pou\u017eit\u00ed form\u00e1tu MessagePack p\u0159i v\u00fdm\u011bn\u011b dat s klientem, dv\u011b vestav\u011bn\u00e9 motory (ukl\u00e1d\u00e1n\u00ed do RAM s p\u0159enosem na trval\u00fd \u00falo\u017ei\u010d a dvoustup\u0148ov\u00e9 diskov\u00e9 \u00falo\u017ei\u0161t\u011b na b\u00e1zi LSM-tree), podpora sekund\u00e1rn\u00edch kl\u00ed\u010d\u016f, \u010dty\u0159i typy index\u016f (HASH, TREE, RTREE, BITSET), prost\u0159edky pro synchronn\u00ed a asynchronn\u00ed replikaci v re\u017eimu master-master, podpora autentizace p\u0159ipojen\u00ed a \u0159\u00edzen\u00ed p\u0159\u00edstupu, a mo\u017enost zpracov\u00e1vat SQL dotazy.    <\/p>\n<p>Hlavn\u00ed zm\u011bny:  <\/p>\n<ul>\n<li class=\"l\"> Stabilizace MVCC (v\u00edceverzn\u00ed \u0159\u00edzen\u00ed konkuren\u010dn\u00edho p\u0159\u00edstupu) v in-memory enginu memtx.\n<li class=\"l\"> Podpora transak\u010dnosti v bin\u00e1rn\u00edm protokolu IPROTO. D\u0159\u00edve bylo pro transakci nutn\u00e9 napsat ulo\u017eenou proceduru v jazyce Lua.\n<li class=\"l\"> Podpora synchronn\u00ed replikace, kter\u00e1 pracuje v\u00e1zan\u011b na jednotliv\u00e9 tabulky.\n<li class=\"l\"> Mechanismus automatick\u00e9ho p\u0159epnut\u00ed na z\u00e1lo\u017en\u00ed uzel (failover) na b\u00e1zi protokolu RAFT. V Tarantool byla dlouho realizov\u00e1na asynchronn\u00ed replikace na b\u00e1zi WAL, nyn\u00ed nen\u00ed t\u0159eba sledovat master uzel ru\u010dn\u011b.\n<li class=\"l\"> Automatick\u00e9 p\u0159epnut\u00ed master uzlu je tak\u00e9 dostupn\u00e9 v p\u0159\u00edpad\u011b topologie se segmentac\u00ed (shardingem) dat (pou\u017e\u00edv\u00e1 se knihovna vshard, kter\u00e1 distribuuje data po serverech pomoc\u00ed virtu\u00e1ln\u00edch ko\u0161\u016f (bucket)).\n<li class=\"l\"> Vylep\u0161en\u00ed frameworku pro vytv\u00e1\u0159en\u00ed klastrov\u00fdch aplikac\u00ed Tarantool Cartridge p\u0159i pr\u00e1ci ve virtu\u00e1ln\u00edch prost\u0159ed\u00edch. Tarantool Cartridge nyn\u00ed l\u00e9pe zvl\u00e1d\u00e1 z\u00e1t\u011b\u017e.\n<li class=\"l\"> Pr\u00e1ce Ansible role pro nasazen\u00ed klastru byla zrychlena 15-20kr\u00e1t. T\u00edm se pr\u00e1ce s velk\u00fdmi klastry stala jednodu\u0161\u0161\u00ed.\n<li class=\"l\"> Objevil se n\u00e1stroj pro zjednodu\u0161enou migraci ze star\u00fdch verz\u00ed &gt;1.6 a &lt; 1.10, kter\u00fd je k dispozici jako dodate\u010dn\u00e1 volba p\u0159i spu\u0161t\u011bn\u00ed. D\u0159\u00edve byla migrace nutn\u00e1 prost\u0159ednictv\u00edm nasazen\u00ed meziproduktu verze 1.10.\n<li class=\"l\"> Byla provedena optimalizace \u00falo\u017een\u00ed mal\u00fdch n-tic.\n<li class=\"l\"> V SQL byla implementov\u00e1na podpora UUID a vylep\u0161ena konverze typ\u016f.  <\/ul>\n<p>Je t\u0159eba poznamenat, \u017ee od verze 2.10 dojde k p\u0159echodu na novou politiku vyd\u00e1v\u00e1n\u00ed verz\u00ed. U v\u00fdznamn\u00fdch aktualizac\u00ed s poru\u0161en\u00edm zp\u011btn\u00e9 kompatibility se zm\u011bn\u00ed prvn\u00ed \u010d\u00edslice verze, u d\u00edl\u010d\u00edch aktualizac\u00ed druh\u00e1 a u opravn\u00fdch aktualizac\u00ed t\u0159et\u00ed (po verzi 2.10 bude vyd\u00e1na verze 3.0.0).<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55754\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u0421\u0423\u0411\u0414 Tarantool 2.8, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0435 \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0441 \u043e\u0442\u0434\u0430\u0447\u0435\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u0438\u0437 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 (in-memory database). \u0421\u0423\u0411\u0414 \u0441\u043e\u0447\u0435\u0442\u0430\u0435\u0442 \u0432\u044b\u0441\u043e\u043a\u0443\u044e \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432, \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u043d\u0443\u044e \u0434\u043b\u044f NoSQL-\u0441\u0438\u0441\u0442\u0435\u043c (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, Memcached \u0438 Redis), c \u043d\u0430\u0434\u0435\u0436\u043d\u043e\u0441\u0442\u044c\u044e \u0442\u0440\u0430\u0434\u0438\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0421\u0423\u0411\u0414 (Oracle, MySQL \u0438 PostgreSQL). Tarantool \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 C \u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u0445\u0440\u0430\u043d\u0438\u043c\u044b\u0435 \u043f\u0440\u043e\u0446\u0435\u0434\u0443\u0440\u044b \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Lua. \u041a\u043e\u0434 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-101218","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" 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