{"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\/novosti-interneta\/vypusk-vstraivaemoj-subd-libmdbx-0-13-3","title":{"rendered":"L\u00ebshimi i baz\u00ebs s\u00eb t\u00eb dh\u00ebnave t\u00eb integruar libmdbx 0.13.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
L\u00ebshimi i bibliotek\u00ebs libmdbx 0.13.3 (MDBX) me implementimin e nj\u00eb baze t\u00eb dh\u00ebnash t\u00eb integruar, kompakte, me performanc\u00eb t\u00eb lart\u00eb dhe klas\u00eb \u00e7el\u00ebs-vler\u00eb. Kodi i libmdbx shp\u00ebrndahet n\u00ebn licenc\u00ebn Apache 2.0. Mb\u00ebshteten t\u00eb gjitha sistemet operative aktuale dhe arkitekturat, p\u00ebrfshir\u00eb edhe Elbrus 2000 nga Rusia. P\u00ebr libmdbx ofrohet nj\u00eb API i zhvilluar 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, Scala. <\/p>\n
Historikisht, libmdbx \u00ebsht\u00eb nj\u00eb rishikim i thell\u00eb i DBMS LMDB dhe tejkalon paraardh\u00ebsin e tij n\u00eb besueshm\u00ebri, gam\u00ebn e mund\u00ebsive dhe performanc\u00eb. N\u00eb krahasim me LMDB, n\u00eb libmdbx p\u00ebrkushtohet nj\u00eb v\u00ebmendje e madhe p\u00ebr cil\u00ebsin\u00eb e kodit, funksionimin stabil t\u00eb API, testimin dhe verifikimet automatike. Ofron nj\u00eb utilitar p\u00ebr verifikimin e integritetit t\u00eb struktur\u00ebs s\u00eb DB me disa mund\u00ebsi rikorrigjimi. Teknologjikisht, libmdbx ofron ACID, serializim t\u00eb rrept\u00eb t\u00eb ndryshimeve dhe lexim jo-bllokues me shkall\u00ebzim linear sipas b\u00ebrthamave t\u00eb CPU. Mb\u00ebshtetet kompaktifikimi automatik, menaxhimi automatik i madh\u00ebsis\u00eb s\u00eb DB-s\u00eb, dhe vler\u00ebsimi i sasis\u00eb s\u00eb mostrave sipas grupeve (range query estimation). <\/p>\n
Ndryshimet kryesore: <\/p>\n
\n
Dega 0.13.x fitoi statusin e stabilitetit. Ka filluar zhvillimi i deges 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 q\u00eb korrespondon me \u00e7el\u00ebsin e tanish\u00ebm, si dhe informacionin mbi pem\u00ebn n\u00eb brend\u00ebsi 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 utilitetet mdbx_copy, mdbx_drop, mdbx_dump, mdbx_load, mdbx_stat \u00ebsht\u00eb realizuar regjistrimi i gabimeve, paralajm\u00ebrrimeve dhe mesazheve t\u00eb r\u00ebnd\u00ebsishme nga libmdbx.\n
Ndryshimi i sjelljes:\n
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Kur aktivizohet profilimi i mbledh\u00ebsit t\u00eb mbetjeve (nd\u00ebrtime me opsionin MDBX_ENABLE_PROFGC=ON), tani llogariten shpenzimet e koh\u00ebs CPU p\u00ebr bashkimin e listave t\u00eb faqeve, dmth p\u00ebr funksionin pnl_merge().\n
N\u00eb utilitetin e testimit, vlera e modit t\u00eb t\u00eb dh\u00ebnave \u00ebsht\u00eb rib\u00ebr\u00eb me emrin nga data.dups n\u00eb data.multi.\n
Kontrolli i gjat\u00ebsis\u00eb s\u00eb \u00e7el\u00ebsit \u00ebsht\u00eb p\u00ebrmir\u00ebsuar brenda cursor_seek().\n
N\u00ebse p\u00ebrdoruesi nuk ka caktuar nj\u00eb vler\u00eb t\u00eb sakt\u00eb me mdbx_env_set_option(MDBX_opt_txn_dp_limit), b\u00ebhet nj\u00eb p\u00ebrshtatje e dirty-pages-limit gjat\u00eb fillimit t\u00eb \u00e7do transaksioni t\u00eb shkruar q\u00eb nuk \u00ebsht\u00eb e brendshme, duke u bazuar n\u00eb kapacitetin e RAM-it t\u00eb disponuesh\u00ebm dhe madh\u00ebsin\u00eb e DB.\n
N\u00eb modalitetin MDBX_NOSTICKYTHREADS lejohet commit\/abort i transaksioneve t\u00eb brendshme nga \u00e7do thread\/rrjedh\u00eb.\n
Kur p\u00ebrpiqeni t\u00eb nisni transaksione t\u00eb ngulitura n\u00eb modalitetin MDBX_WRITEMAP, kryhet regjistrimi dhe kthehet gabimi MDBX_INCOMPATIBLE.\n
N\u00eb API-n\u00eb C++, n\u00eb konstruktor\u00ebt\/inicializuesit dhe metodat q\u00eb lidhen me formimin e gjeometris\u00eb s\u00eb DB-s\u00eb, p\u00ebrdoren vet\u00ebm vlerat default si parazgjedhje.\n
Brenda mdbx_env_set_geometry() jan\u00eb p\u00ebrmir\u00ebsuar heuristik\u00ebt p\u00ebr p\u00ebrcaktimin e parametrave t\u00eb geometris\u00eb s\u00eb DB q\u00eb k\u00ebrkohet nga p\u00ebrdoruesi 'p\u00ebrdefault'. <\/ul>\n
Rregullimet:\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 nj\u00eb dbi-deskriptor, duke p\u00ebrfshir\u00eb p\u00ebrpjekjet p\u00ebr t\u00eb mbyllur qart\u00eb deskriptorin pas fshirjes s\u00eb tabel\u00ebs s\u00eb lidhur me t\u00eb.\n
\u00cbsht\u00eb eliminuar regresi i estado-s p\u00ebr kursorin e ngulitur\/dupsort pas futjes s\u00eb t\u00eb dh\u00ebnave n\u00eb modalitetin MDBX_APPEND.\n
Mb\u00ebshtetje p\u00ebr marrjen e boot_id gjat\u00eb funksionimit brenda kontejnerit LXC.\n
\u00cbsht\u00eb eliminuar gabimi i trajtimit t\u00eb gabuar t\u00eb p\u00ebrpjekjes p\u00ebr t\u00eb nisur nj\u00eb transaksion t\u00eb leximit t\u00eb ngulitur. Tani n\u00eb k\u00ebto situata kthehet gabimi MDBX_EINVAL, pasi ngul\u00ebsia mb\u00ebshtetet vet\u00ebm p\u00ebr transaksionet e leximit-shkrimit.\n
\u00cbsht\u00eb eliminuar regresi SIGSEGV i aksesit n\u00eb adres\u00eb t\u00eb null gjat\u00eb funksionimit n\u00eb modalitetin vet\u00ebm p\u00ebr lexim pa p\u00ebrdorimin e skedarit LCK, p\u00ebr shembull kur vendosni DB-n\u00eb n\u00eb nj\u00eb medium q\u00eb \u00ebsht\u00eb vet\u00ebm p\u00ebr lexim. <\/ul>\n<\/ul>\n