{"id":164600,"date":"2026-03-14T11:12:15","date_gmt":"2026-03-14T09:12:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/sqlite-3-51-3-s-ispravleniem-vozmozhnogo-povrezhdeniya-bazy-dannyh-v-rezhime-wal"},"modified":"2026-03-14T11:12:15","modified_gmt":"2026-03-14T09:12:15","slug":"sqlite-3-51-3-s-ispravleniem-vozmozhnogo-povrezhdeniya-bazy-dannyh-v-rezhime-wal","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/sqlite-3-51-3-s-ispravleniem-vozmozhnogo-povrezhdeniya-bazy-dannyh-v-rezhime-wal","title":{"rendered":"SQLite 3.51.3 cu corectura posibilei deterior\u0103ri a bazei de date \u00een modul WAL","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"SQLite 3.51.3 cu corectura posibilei deterior\u0103ri a bazei de date \u00een modul WAL\" src=\"\/wp-content\/uploads\/2026\/03\/3c442654f8b6d86974735255e8214cfe.jpg\" style=\"display:block;margin: 0 auto;\" \/>                              <noindex>      <noindex><\/p>\n<p>Pe 13 martie a avut loc o lansare corectiv\u0103 a versiuni 3.51.3 a SGBD-ului compact \u00eencorporat <a rel=\"nofollow\" href=\"https:\/\/sqlite.org\">SQLite<\/a>. Codul proiectului este scris \u00een limbajul C \u0219i este distribuit ca domeniu public.<\/p>\n<p><\/noindex><\/noindex> <noindex><\/p>\n<p>Din cauza problemelor de compatibilitate \u00eenapoi legate de anumite func\u021bii noi, versiunea <a rel=\"nofollow\" href=\"https:\/\/sqlite.org\/releaselog\/3_52_0.html\">3.52.0<\/a> (lansat\u0103 pe 6 martie) a fost retras\u0103.<\/p>\n<p><\/noindex>  <\/p>\n<p>Lista modific\u0103rilor versiunii 3.51.3:<\/p>\n<ul>\n<li>Pe 3 martie, unul dintre dezvoltatorii SQLite (Dan) a descoperit \u0219i a remediat o eroare care, \u00een cazuri rare, putea conduce la deteriorarea bazei de date \u0219i a fost numit\u0103 <a rel=\"nofollow\" href=\"https:\/\/sqlite.org\/wal.html#walresetbug\">\u00abBugul WAL-reset\u00bb<\/a>:\n<ul>\n<li>Aceast\u0103 eroare apare doar \u00een bazele de date care func\u021bioneaz\u0103 \u00een modul WAL, dac\u0103 acela\u0219i fi\u0219ier este deschis de dou\u0103 sau mai multe conexiuni \u00een fire sau procese diferite \u0219i dac\u0103 aceste dou\u0103 conexiuni \u00eencearc\u0103 s\u0103 execute o scriere sau s\u0103 creeze un punct de control \u00een acela\u0219i timp.<\/li>\n<li>Eroarea este legat\u0103 de un conflict de acces la date \u00een condi\u021bii stricte de timp. \u00cen condi\u021bii normale de utilizare, aceasta apare extrem de rar. Dezvoltatorii nu au reu\u0219it s\u0103 reproduc\u0103 aceast\u0103 eroare \u00een condi\u021bii naturale \u0219i au fost nevoi\u021bi s\u0103 adauge \u00een SQLite o logic\u0103 special\u0103 de testare care creeaz\u0103 inten\u021bionat condi\u021bii pentru a provoca eroarea, pentru a se asigura c\u0103 problema a fost rezolvat\u0103.<\/li>\n<li>Eroarea apare atunci c\u00e2nd:\n<ol>\n<li>O conexiune execut\u0103 controlul punctului de control. Aceast\u0103 prima verificare trebuie finalizat\u0103. Cu alte cuvinte, \u00een timpul verific\u0103rii trebuie s\u0103 se copieze cu succes tot con\u021binutul fi\u0219ierului WAL \u00eenapoi \u00een baza de date \u0219i s\u0103 se aduc\u0103 fi\u0219ierul WAL \u00eentr-o stare \u00een care poate fi resetat.<\/li>\n<li>Imediat dup\u0103 terminarea primei verific\u0103ri de control, \u00eencepe a doua.<\/li>\n<li>\u00cen timp ce a doua verificare de control din pasul 2 este \u00een curs de desf\u0103\u0219urare, o alt\u0103 conexiune la baza de date \u00eenregistreaz\u0103 o tranzac\u021bie care reseteaz\u0103 fi\u0219ierul WAL \u0219i scrie un nou con\u021binut la \u00eenceputul fi\u0219ierului WAL.<\/li>\n<li>Din cauza conflictului de acces la date, a doua verificare de control din pasul 2 nu ia \u00een considerare faptul c\u0103 fi\u0219ierul WAL a fost resetat ca urmare a \u00eenregistr\u0103rii tranzac\u021biei din pasul 3. A doua verificare de control stabile\u0219te o valoare incorect\u0103 pentru unul dintre c\u00e2mpurile din antetul WAL. Acest c\u00e2mp indic\u0103 faptul c\u0103 o parte a fi\u0219ierului WAL a fost deja \u00eenregistrat\u0103 \u00een punctul de control, de\u0219i \u00een realitate nu este a\u0219a.<\/li>\n<li>Fixarea tranzac\u021biilor suplimentare duce la cre\u0219terea num\u0103rului de pagini din fi\u0219ierul WAL, care dep\u0103\u0219e\u0219te num\u0103rul de pagini existente \u00een momentul primului punct de verificare din pasul 1.<\/li>\n<li>Mai t\u00e2rziu, c\u00e2nd apare un al treilea punct de verificare, este posibil s\u0103 s\u0103ri\u021bi toat\u0103 sau o parte dintr-o tranzac\u021bie \u00eenregistrat\u0103 \u00een etapa 3. Astfel, p\u0103r\u021bi din tranzac\u021bia de la etapa 3 nu ajung \u00een fi\u0219ierul bazei de date, ceea ce duce la deteriorarea acestuia.<\/li>\n<\/ol>\n<\/li>\n<li>Eroarea este probabil prezent\u0103 \u00een toate versiunile SQLite, \u00eencep\u00e2nd cu 3.7.0 (21.07.2010) \u0219i termin\u00e2nd cu 3.51.2. De asemenea, au fost emise corec\u021bii pentru unele versiuni anterioare: <a rel=\"nofollow\" href=\"https:\/\/sqlite.org\/src\/info\/863c171b76cd36e0\">3.44.6<\/a> \u0219i <a rel=\"nofollow\" href=\"https:\/\/sqlite.org\/src\/info\/c7facf7ac58d2cda\">3.50.7<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li>Alte corec\u021bii minore.<\/li>\n<\/ul>\n<p>Sursa: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/opensource\/18241537\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>13-\u0433\u043e \u043c\u0430\u0440\u0442\u0430 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u043f\u0443\u0441\u043a 3.51.3 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0439 \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0421\u0423\u0411\u0414 SQLite. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 C \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0435 \u0434\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 (public domain). \u0412 \u0441\u0432\u044f\u0437\u0438 \u0441 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u043c\u0438 \u043e\u0431\u0440\u0430\u0442\u043d\u043e\u0439 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u0438, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u043c\u0438 \u0441 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u043c\u0438 \u043d\u043e\u0432\u044b\u043c\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u044f\u043c\u0438, \u0432\u0435\u0440\u0441\u0438\u044f 3.52.0 (\u0432\u044b\u0448\u0435\u0434\u0448\u0430\u044f 6-\u0433\u043e \u043c\u0430\u0440\u0442\u0430) \u0431\u044b\u043b\u0430 \u043e\u0442\u043e\u0437\u0432\u0430\u043d\u0430. \u0421\u043f\u0438\u0441\u043e\u043a \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 3.51.3: 3-\u0433\u043e \u043c\u0430\u0440\u0442\u0430 \u043e\u0434\u0438\u043d \u0438\u0437 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 SQLite (Dan) \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0438\u043b \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0438\u043b [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":164601,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-164600","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta 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