{"id":121338,"date":"2025-01-14T21:45:59","date_gmt":"2025-01-14T19:45:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-vstraivaemoj-subd-libmdbx-0-13-3"},"modified":"2025-01-14T21:45:59","modified_gmt":"2025-01-14T19:45:59","slug":"vypusk-vstraivaemoj-subd-libmdbx-0-13-3","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/vypusk-vstraivaemoj-subd-libmdbx-0-13-3","title":{"rendered":"Utgivning av inb\u00e4ddad databaslibmdbx 0.13.3.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Versionen av libmdbx-biblioteket 0.13.3 (MDBX) har publicerats, vilket implementerar en h\u00f6gpresterande kompakt inb\u00e4ddad nyckel-v\u00e4rde-databas. Koden f\u00f6r libmdbx distribueras under Apache 2.0-licensen. Alla aktuella operativsystem och arkitekturer st\u00f6ds, inklusive den ryska Elbrus 2000. F\u00f6r libmdbx erbjuds ett omfattande API f\u00f6r C++, samt st\u00f6dda bindningar till spr\u00e5k som Rust, Haskell, Python, NodeJS, Ruby, Go, Nim, Deno och Scala.      <\/p>\n<p>Historiskt sett \u00e4r libmdbx en djup omarbetning av databashanteraren LMDB och \u00f6vertr\u00e4ffar sin f\u00f6reg\u00e5ngare i p\u00e5litlighet, funktionalitet och prestanda. I j\u00e4mf\u00f6relse med LMDB l\u00e4ggs det stor vikt vid kodkvalitet, stabilitet i API:et, testning och automatiska kontroller. En verktyg f\u00f6r integritetskontroll av databasstrukturen levereras med vissa \u00e5terst\u00e4llningsm\u00f6jligheter. Teknologiskt erbjuder libmdbx ACID, strikt serialisering av \u00e4ndringar och icke-blockerande l\u00e4sning med linj\u00e4r skalning \u00f6ver CPU-k\u00e4rnor. Automatisk komprimering av data, automatisk hantering av databasens storlek samt skattning av urvalsstorlekar baserat p\u00e5 intervall (range query estimation) st\u00f6djs.        <\/p>\n<p>Huvudsakliga f\u00f6r\u00e4ndringar:  <\/p>\n<ul>\n<li class=\"l\"> Version 0.13.x har f\u00e5tt status som stabil. Utvecklingen av version 0.14.x har p\u00e5b\u00f6rjats.\n<li class=\"l\"> Funktionen mdbx_cursor_count_ex() har lagts till i C API, vilket g\u00f6r det m\u00f6jligt att f\u00e5 b\u00e5de antalet multipla v\u00e4rden som motsvarar den aktuella nyckeln och information om det inre tr\u00e4det som lagrar dessa v\u00e4rden.\n<li class=\"l\"> Metoden mdbx::txn::make_broken() har lagts till i C++ API, motsvarande mdbx_txn_break().\n<li class=\"l\"> I verktygen mdbx_copy, mdbx_drop, mdbx_dump, mdbx_load, mdbx_stat har loggning av fel, varningar och viktiga meddelanden fr\u00e5n libmdbx implementerats.\n<li class=\"l\"> \u00c4ndring av beteende:\n<ul>\n<li class=\"l\"> N\u00e4r profilering av skr\u00e4psamlare (kompilering med alternativet MDBX_ENABLE_PROFGC=ON) \u00e4r aktiverat r\u00e4knas nu CPU-tid f\u00f6r sammanslagning av sidlistor, dvs. f\u00f6r funktionen pnl_merge().\n<li class=\"l\">  I testverktyget har datal\u00e4get \u00e4ndrats fr\u00e5n data.dups till data.multi.\n<li class=\"l\">  Kontrollen av nyckell\u00e4ngd i cursor_seek() har f\u00f6rb\u00e4ttrats.\n<li class=\"l\"> Om inte ett eget v\u00e4rde anges av anv\u00e4ndaren via mdbx_env_set_option(MDBX_opt_txn_dp_limit), justeras dirty-pages-limit vid starten av varje icke-n\u00e4stlad skrivtransaktion, baserat p\u00e5 m\u00e4ngden tillg\u00e4ngligt RAM-minne och storleken p\u00e5 databasen.\n<li class=\"l\"> I l\u00e4get MDBX_NOSTICKYTHREADS till\u00e5ts commit\/abort av n\u00e4stlade transaktioner fr\u00e5n vilken tr\u00e5d som helst.\n<li class=\"l\"> Vid f\u00f6rs\u00f6k att starta n\u00e4stlade transaktioner i l\u00e4get MDBX_WRITEMAP g\u00f6rs loggning och ett fel MDBX_INCOMPATIBLE returneras.\n<li class=\"l\"> I C++ API anv\u00e4nds som standard endast standardv\u00e4rden i konstruktorer\/initierare och metoder relaterade till databashantering.\n<li class=\"l\"> Inuti mdbx_env_set_geometry() har heuristiken f\u00f6r att v\u00e4lja databasens geometri-parametrar, som beg\u00e4rts av anv\u00e4ndaren, &#171;som standard&#187; f\u00f6rb\u00e4ttrats.  <\/ul>\n<li class=\"l\"> Buggfixar:\n<ul>\n<li class=\"l\"> En regression av oblockering av mutex vid f\u00f6rs\u00f6k att st\u00e4nga dbi-deskriptoren igen, inklusive f\u00f6rs\u00f6k att uttryckligen st\u00e4nga deskriptoren efter att den relaterade tabellen har raderats, har \u00e5tg\u00e4rdats.\n<li class=\"l\"> En regression av den interna tillst\u00e5ndet f\u00f6r n\u00e4stlade\/dupsort-cursorer efter att ha infogat data i MDBX_APPEND-l\u00e4ge har \u00e5tg\u00e4rdats.\n<li class=\"l\"> St\u00f6d f\u00f6r att h\u00e4mta boot_id vid arbete inom en LXC-container.\n<li class=\"l\"> Fel av invalid hantering av f\u00f6rs\u00f6k att starta en inb\u00e4ddad l\u00e4sande transaktion har \u00e5tg\u00e4rdats. Nu returneras ett felmeddelande MDBX_EINVAL i s\u00e5dana situationer, eftersom n\u00e4stlade transaktioner endast st\u00f6ds f\u00f6r l\u00e4s- och skrivtransaktioner.\n<li class=\"l\"> Regression av SIGSEGV som h\u00e4nvisar till nulladress i l\u00e4sl\u00e4ge utan att anv\u00e4nda LCK-fil har \u00e5tg\u00e4rdats, till exempel n\u00e4r databasen \u00e4r placerad p\u00e5 en l\u00e4sbar enhet.  <\/ul>\n<\/ul>\n<p>K\u00e4lla: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62554\">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 \u0432\u044b\u043f\u0443\u0441\u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 libmdbx 0.13.3 (MDBX) \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0439 \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u043a\u043b\u0430\u0441\u0441\u0430 \u043a\u043b\u044e\u0447-\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435. \u041a\u043e\u0434 libmdbx \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 Apache 2.0. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u0432\u0441\u0435 \u0430\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0439 \u042d\u043b\u044c\u0431\u0440\u0443\u0441 2000. \u0414\u043b\u044f libmdbx \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u043e\u0435 API \u0434\u043b\u044f C++, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0435 \u044d\u043d\u0442\u0443\u0437\u0438\u0430\u0441\u0442\u0430\u043c\u0438 \u043f\u0440\u0438\u0432\u044f\u0437\u043a\u0438 \u043a \u044f\u0437\u044b\u043a\u0430\u043c Rust, Haskell, Python, NodeJS, Ruby, Go, Nim, [&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-121338","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - 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