{"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\/sq\/blog\/news\/vypusk-vstraivaemoj-subd-libmdbx-0-13-3","title":{"rendered":"L\u00ebshimi i DBMS-ve t\u00eb integruara libmdbx 0.13.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Botimi i bibliotek\u00ebs libmdbx 0.13.3 (MDBX) me implementimin e nj\u00eb baze t\u00eb dh\u00ebnash t\u00eb integruar, me performanc\u00eb t\u00eb lart\u00eb dhe kompakte, \u00ebsht\u00eb publikuar. Kodi i libmdbx shp\u00ebrndahet n\u00ebn licenc\u00ebn Apache 2.0. P\u00ebrkrah t\u00eb gjitha sistemet operative dhe arkitektur\u00ebn aktuale, si dhe Elbrus 2000 rus. Libmdbx ofron nj\u00eb API t\u00eb avancuar p\u00ebr C++, si dhe lidhje t\u00eb mb\u00ebshtetura nga entuziast\u00ebt p\u00ebr gjuh\u00ebt Rust, Haskell, Python, NodeJS, Ruby, Go, Nim, Deno dhe Scala. <\/p>\n
Historikisht, libmdbx \u00ebsht\u00eb nj\u00eb ripunim i thell\u00eb i DBMS LMDB dhe tejkalon paraardh\u00ebsin e tij n\u00eb besueshm\u00ebri, gam\u00ebn e mund\u00ebsive dhe performanc\u00ebn. Krahasuar me LMDB, libmdbx i kushton v\u00ebmendje t\u00eb madhe cil\u00ebsis\u00eb s\u00eb kodit, q\u00ebndrueshm\u00ebris\u00eb s\u00eb API, testimit dhe verifikimeve automatike. Ofron nj\u00eb mjet p\u00ebr verifikimin e integritetit t\u00eb struktur\u00ebs s\u00eb DB me disa mund\u00ebsi rikuperimi. Teknologjikisht, libmdbx ofron ACID, serializim t\u00eb rrept\u00eb t\u00eb ndryshimeve dhe lexim jo bllokues me shkall\u00ebzim linear sipas nj\u00ebsive CPU. Mb\u00ebshtetet auto-kompaktifikimi, menaxhimi automatik i madh\u00ebsis\u00eb s\u00eb DB, dhe vler\u00ebsimi i volumit t\u00eb k\u00ebrkesave n\u00eb intervale (range query estimation). <\/p>\n
Ndryshimet kryesore: <\/p>\n
\n
Dega 0.13.x mori statusin e q\u00ebndruesh\u00ebm. Ka filluar zhvillimi i deg\u00ebs 0.14.x.\n
N\u00eb API-n\u00eb C \u00ebsht\u00eb shtuar funksioni mdbx_cursor_count_ex(), i cili lejon marrjen e numrit t\u00eb shum\u00eb-vlerave p\u00ebrkat\u00ebse me \u00e7el\u00ebsin aktual, si dhe informacionin mbi pem\u00ebn e brendshme q\u00eb ruan k\u00ebto vlera.\n
N\u00eb API-n\u00eb C++ \u00ebsht\u00eb shtuar metoda mdbx::txn::make_broken(), e ngjashme me mdbx_txn_break().\n
N\u00eb mjetet mdbx_copy, mdbx_drop, mdbx_dump, mdbx_load, mdbx_stat \u00ebsht\u00eb implementuar regjistrimi i gabimeve, paralajm\u00ebrimeve dhe mesazheve t\u00eb r\u00ebnd\u00ebsishme nga libmdbx.\n
Ndryshimi i sjelljes:\n
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Kur aktivizohet profilizimi i mbledh\u00ebsit t\u00eb mbetjeve (mbledhje me opsionin MDBX_ENABLE_PROFGC=ON), tani llogariten kostot e koh\u00ebs s\u00eb CPU p\u00ebr shkrirjen e listave t\u00eb faqeve, dmth p\u00ebr funksionin pnl_merge().\n
N\u00eb mjetin e testimit, vlera e modit t\u00eb t\u00eb dh\u00ebnave \u00ebsht\u00eb rinovuar nga data.dups n\u00eb data.multi.\n
\u00cbsht\u00eb p\u00ebrmir\u00ebsuar kontrolli i gjat\u00ebsis\u00eb s\u00eb \u00e7el\u00ebsit brenda cursor_seek().\n
N\u00ebse p\u00ebrdoruesi nuk caktuar vet\u00eb nj\u00eb vler\u00eb p\u00ebrmes mdbx_env_set_option(MDBX_opt_txn_dp_limit), ekzekutohet rregullimi i dirty-pages-limit me nisjen e \u00e7do transaksioni shkruese t\u00eb pa integruar, duke u bazuar n\u00eb volumet e RAM t\u00eb disponuesh\u00ebm dhe madh\u00ebsin\u00eb e DB.\n
N\u00eb modin MDBX_NOSTICKYTHREADS, lejohet commit\/abort i transaksioneve t\u00eb integrate nga \u00e7do thread\/rrjedh\u00eb.\n
Kur gjat\u00eb p\u00ebrpjekjes p\u00ebr t\u00eb nisur transaksione t\u00eb nd\u00ebrlidhura n\u00eb m\u00ebnyr\u00ebn MDBX_WRITEMAP, regjistrohet nj\u00eb log dhe kthehet nj\u00eb gabim MDBX_INCOMPATIBLE.\n
N\u00eb API-n\u00eb C++, n\u00eb konstruktoret\/inicializuesit dhe metodat e lidhura me formimin e gjeometris\u00eb s\u00eb DB-s\u00eb, p\u00ebrdoren p\u00ebr default vet\u00ebm vlerat standarde.\n
Brenda mdbx_env_set_geometry() jan\u00eb p\u00ebrmir\u00ebsuar heuristikat p\u00ebr p\u00ebrshtatjen e parametrave t\u00eb gjeometris\u00eb s\u00eb baz\u00ebs s\u00eb t\u00eb dh\u00ebnave sipas k\u00ebrkesave t\u00eb p\u00ebrdoruesit \"default\". <\/ul>\n
Rregullime:\n
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\u00cbsht\u00eb eliminuar regresi i mos\u00e7lirimit t\u00eb mutex-it gjat\u00eb p\u00ebrpjekjes p\u00ebr t\u00eb mbyllur p\u00ebrs\u00ebri dbi-deskriptorin, duke p\u00ebrfshir\u00eb p\u00ebrpjekjen p\u00ebr t\u00eb mbyllur n\u00eb m\u00ebnyr\u00eb eksplicite deskriptorin pas fshirjes s\u00eb tabel\u00ebs s\u00eb lidhur me t\u00eb.\n
\u00cbsht\u00eb eliminuar regresi i q\u00ebndrimit t\u00eb kursorit t\u00eb nd\u00ebrlidhur\/dupsort pas futjes s\u00eb t\u00eb dh\u00ebnave n\u00eb m\u00ebnyr\u00ebn MDBX_APPEND.\n
P\u00ebrkrahja e marrjes s\u00eb boot_id gjat\u00eb pun\u00ebs brenda nj\u00eb kontejneri LXC.\n
\u00cbsht\u00eb eliminuar gabimi i p\u00ebrpunimit t\u00eb gabuar t\u00eb p\u00ebrpjekjes p\u00ebr t\u00eb nisur nj\u00eb transaksion lexues t\u00eb nd\u00ebrlidhur. Tani n\u00eb situata t\u00eb tilla kthehet nj\u00eb gabim MDBX_EINVAL, pasi nd\u00ebrlidhja mb\u00ebshtetet vet\u00ebm p\u00ebr transaksionet e leximit-shkrimit.\n
\u00cbsht\u00eb eliminuar regresi SIGSEGV i qasjes n\u00eb adres\u00ebn zero gjat\u00eb pun\u00ebs n\u00eb m\u00ebnyr\u00ebn e vet\u00ebm-p\u00ebr-lexim pa p\u00ebrdorimin e skedarit LCK, p\u00ebr shembull, kur vendosni DB-n\u00eb n\u00eb nj\u00eb mbajt\u00ebs q\u00eb \u00ebsht\u00eb vet\u00ebm p\u00ebr lexim. <\/ul>\n<\/ul>\n