{"id":123648,"date":"2025-04-25T03:05:17","date_gmt":"2025-04-25T01:05:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-vstraivaemoj-subd-libmdbx-0-13-6"},"modified":"2025-04-25T03:05:17","modified_gmt":"2025-04-25T01:05:17","slug":"vypusk-vstraivaemoj-subd-libmdbx-0-13-6","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/vypusk-vstraivaemoj-subd-libmdbx-0-13-6","title":{"rendered":"Lansarea SGBD-ului \u00eencorporat libmdbx 0.13.6","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A fost publicat\u0103 versiunea 0.13.6 a bibliotecii libmdbx (MDBX), care implementeaz\u0103 o baz\u0103 de date \u00eencorporat\u0103 compact\u0103 \u0219i de \u00eenalt\u0103 performan\u021b\u0103 de tip cheie-valoare. Codul libmdbx este distribuit sub licen\u021ba Apache 2.0. Se suport\u0103 toate sistemele de operare \u0219i arhitecturile actuale, inclusiv Elysium 2000 din Rusia. Libmdbx ofer\u0103 o API dezvoltat\u0103 pentru C++, precum \u0219i leg\u0103turi sus\u021binute de entuzia\u0219ti pentru limbajele Rust, Haskell, Python, NodeJS, Ruby, Go, Nim, Deno, Scala. Printre proiectele care utilizeaz\u0103 libmdbx se num\u0103r\u0103 Isar, Erigon \u0219i Reth, precum \u0219i dezvolt\u0103rile companiilor StarkWare \u0219i Positive Technologies.      <\/p>\n<p>Din punct de vedere istoric, libmdbx este o refacere profund\u0103 a sistemului de gestionare a bazelor de date LMDB \u0219i dep\u0103\u0219e\u0219te predecesorul s\u0103u \u00een ceea ce prive\u0219te fiabilitatea, func\u021bionalitatea \u0219i performan\u021ba. Comparativ cu LMDB, libmdbx acord\u0103 o mare aten\u021bie calit\u0103\u021bii codului, func\u021bion\u0103rii stabile a API-ului, test\u0103rii \u0219i verific\u0103rilor automate. Este inclus\u0103 o utilitar\u0103 de verificare a integrit\u0103\u021bii structurii bazei de date, cu unele capacit\u0103\u021bi de recuperare. Din punct de vedere tehnologic, libmdbx ofer\u0103 ACID, serializare strict\u0103 a modific\u0103rilor \u0219i citire neblocat cu scalare liniar\u0103 pe nuclee CPU. Suport\u0103 auto\u00eengrijirea \u0219i gestionarea automat\u0103 a dimensiunii bazei de date, estimarea volumului interog\u0103rilor pe intervale (range query estimation).          <\/p>\n<p>Modific\u0103ri principale:  <\/p>\n<ul>\n<li class=\"l\"> Schimbarea comportamentului: \u00cen cazul \u00een care nu se poate deta\u0219a cursorul de tranzac\u021bia sa curent\u0103, func\u021bia mdbx_cursor_bind() returneaz\u0103 acum MDBX_EINVAL \u00een loc de MDBX_BAD_TXN.\n<li class=\"l\"> Pentru a evita problemele poten\u021biale, utilizarea copy_file_range() este dezactivat\u0103 pe nucleele Linux 5.3 \u2014 5.18.\n<li class=\"l\"> Excep\u021bia std::invalid_argument este acum generat\u0103 cu un mesaj explicit MDBX_EINVAL.\n<li class=\"l\"> A fost eliminat regresul la utilizarea cursorilor pentru DBI=0 (cunoscut \u0219i sub numele de GC\/FreeDB) \u00een tranzac\u021biile de citire.\n<li class=\"l\"> A fost eliminat regresul sub forma erorii EAGAIN la copierea BD-ului pe NFS \u0219i CIFS\/SMB.\n<li class=\"l\"> \u00cen \u00eembun\u0103t\u0103\u021birile\/dezvoltarea API-ului, func\u021bia de copiere a fost extins\u0103 cu capturarea bloc\u0103rii fi\u0219ierelor prin fcntl() \u0219i flock(). Totu\u0219i, \u00een func\u021bie de versiunea nucleului local, versiunea NFS de la distan\u021b\u0103 \u0219i op\u021biunile de montare, acest lucru ar putea duce la returnarea erorii POSIX EAGAIN (11 pe majoritatea platformelor, inclusiv Linux). <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/dts-los-angeles\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3964\">server<\/a> A fost rezolvat\u0103 o eroare de tip merge\/rebase \u00een cadrul mdbx_txn_release_all_cursors_ex(), ceea ce putea conduce la erori nea\u0219teptate ulterioare MDBX_EBADSIGN \u0219i scurgeri de memorie.\n<li class=\"l\"> A fost corectat\u0103 verificarea assert \u00een procesul de \u00eencheiere a tranzac\u021biilor imbricate.\n<li class=\"l\">  A fost eliminat\u0103 posibilitatea return\u0103rii unei erori nea\u0219teptate MDBX_BUSY din mdbx_txn_lock(dont_wait=false).\n<li class=\"l\">     Pentru compatibilitatea cu GCC 15.x \u00een modul C23, ordinea specific\u0103rii atributelor func\u021biilor a fost modificat\u0103.\n<li class=\"l\">  A fost publicat\u0103 versiunea 0.13.6 a bibliotecii libmdbx (MDBX), care implementeaz\u0103 o baz\u0103 de date \u00eencorporat\u0103 compact\u0103 \u0219i de \u00eenalt\u0103 performan\u021b\u0103 de tip cheie-valoare. Codul libmdbx este distribuit sub licen\u021ba Apache 2.0.          <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63134\">opennet.ro<\/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 0.13.6 (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 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