{"id":139913,"date":"2025-08-01T23:11:58","date_gmt":"2025-08-01T21:11:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-vstraivaemoj-subd-libmdbx-0-13-7"},"modified":"2025-08-01T23:11:58","modified_gmt":"2025-08-01T21:11:58","slug":"vypusk-vstraivaemoj-subd-libmdbx-0-13-7","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/vypusk-vstraivaemoj-subd-libmdbx-0-13-7","title":{"rendered":"L\u00ebshimi i libmdbx 0.13.7","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
\u00cbsht\u00eb publikuar l\u00ebshimi i libmdbx 0.13.7 (MDBX) me implementimin e nj\u00eb baze t\u00eb dh\u00ebnash t\u00eb integruar t\u00eb lart\u00eb q\u00eb funksionon si \u00e7el\u00ebs-vler\u00eb. Kodi i libmdbx shp\u00ebrndahet n\u00ebn licenc\u00ebn Apache 2.0. Mb\u00ebshteten t\u00eb gjitha sistemet operative dhe arkitekturat aktuale, si dhe Elbrusi rus 2000. Libmdbx ofron nj\u00eb API t\u00eb 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. Nd\u00ebr projektet q\u00eb p\u00ebrdorin libmdbx, mund t\u00eb p\u00ebrmendim Isar, Erigon dhe Reth, si dhe zhvillimet e kompanive StarkWare dhe Positive Technologies. <\/p>\n
Historikisht, libmdbx \u00ebsht\u00eb nj\u00eb ripunim i thell\u00eb i baz\u00ebs s\u00eb t\u00eb dh\u00ebnave LMDB dhe e tejkalon paraardh\u00ebsin e saj n\u00eb besueshm\u00ebri, funksionalitete dhe performanc\u00eb. Krahasuar me LMDB, n\u00eb libmdbx i \u00ebsht\u00eb kushtuar shum\u00eb v\u00ebmendje cil\u00ebsis\u00eb s\u00eb kodit, q\u00ebndrueshm\u00ebris\u00eb s\u00eb API, testimit dhe kontrolleve automatike. Sigurohet nj\u00eb mjet p\u00ebr t\u00eb verifikuar integritetin e struktur\u00ebs s\u00eb baz\u00ebs s\u00eb t\u00eb dh\u00ebnave me disa mund\u00ebsi rikuperimi. Teknologjikisht, libmdbx ofron ACID, serilizim t\u00eb rrept\u00eb t\u00eb ndryshimeve dhe lexim t\u00eb pakonkurruesh\u00ebm me shkall\u00ebzim linear sipas b\u00ebrthamave t\u00eb CPU. Mb\u00ebshtetet kompaktimi automatik, menaxhimi automatik i madh\u00ebsis\u00eb s\u00eb baz\u00ebs s\u00eb t\u00eb dh\u00ebnave, dhe vler\u00ebsimi i shum\u00ebsive t\u00eb zgjedhura sipas intervaleve (range query estimation). <\/p>\n
Ndryshimet kryesore: <\/p>\n
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Kishte eliminuar nj\u00eb gabim t\u00eb r\u00ebnd\u00ebsish\u00ebm n\u00eb funksionalitetin mdbx_env_resurrect_after_fork() gjat\u00eb p\u00ebrdorimit t\u00eb semafor\u00ebve SysV. Gabimi shfaqej vet\u00ebm pas krijimit t\u00eb nj\u00eb procesi f\u00ebmij\u00eb p\u00ebrmes fork() gjat\u00eb nj\u00eb transaksioni shkruese t\u00eb ekzekutuar, duke \u00e7uar n\u00eb nj\u00eb funksionim t\u00eb gabuar t\u00eb semafor\u00ebve dhe m\u00eb pas n\u00eb gabime t\u00eb ndryshme, p\u00ebrfunduar n\u00eb d\u00ebmtimin e baz\u00ebs s\u00eb t\u00eb dh\u00ebnave. Problemi ka ekzistuar q\u00eb nga shfaqja e mdbx_env_resurrect_after_fork() dhe kishte prekur macOS, si dhe platforma POSIX kur ishte nd\u00ebrtuar me opsionin MDBX_LOCKING=5.\n
Kishte eliminuar nj\u00eb problem n\u00eb API-n\u00eb e kopjimit t\u00eb baz\u00ebs s\u00eb t\u00eb dh\u00ebnave, q\u00eb shfaqej n\u00eb sisteme POSIX ndryshe nga Linux (p\u00ebr shumic\u00ebn n\u00eb macOS), si dhe n\u00eb disa raste kur skedari i targetit ishte n\u00eb nj\u00eb sistem skedari jo-lokal. Problemi \u00e7onte n\u00eb kthimin e gabimit EWOULDBLOCK\/EAGAIN, i cili rezultonte nga nj\u00eb mosfunksionim\/kontaktim i bllokimeve fcntl(F_SETLK) dhe flock() n\u00eb kernin e OS. Kishte p\u00ebrmir\u00ebsuar trajtimin e gabimeve t\u00eb kapjes s\u00eb bllokimeve t\u00eb skedar\u00ebve n\u00eb API-n\u00eb e kopjimit n\u00eb sistemet POSIX.\n
Korrigjua nj\u00eb gabim q\u00eb shkaktonte kthimin e papritur MDBX_BAD_DBI kur filloheshin disa transaksione brenda nj\u00eb procesi pas hapjes s\u00eb BD-s\u00eb.\n
Korrigjua nj\u00eb gabim q\u00eb shkaktonte kthimin e papritur MDBX_DBS_FULL kur rihapeshin tabela t\u00eb hapura tashm\u00eb dhe ishte arritur kufiri i descriptor\u00ebve t\u00eb hapur DBI.\n
Korrigjua nj\u00eb gabim nd\u00ebrtimi p\u00ebr platform\u00ebn Android kur \u00ebsht\u00eb e shprehur qart\u00eb _FILE_OFFSET_BITS.\n
Korrigjua p\u00ebrdorimi i ENOMEM n\u00eb vend t\u00eb MDBX_ENOMEM, i cili mund t\u00eb shkaktonte probleme n\u00eb nd\u00ebrtim n\u00eb platformat jo-POSIX\/Windows, n\u00eb var\u00ebsi t\u00eb konfigurimit dhe\/ose versionit t\u00eb SDK.\n
Ngrit\u00ebm ose fshim\u00eb disa kontrolle t\u00eb gabuara, t\u00eb cilat shkaktonin d\u00ebshtime n\u00eb nd\u00ebrtimet e p\u00ebrjashtuara n\u00eb situata specifike. Kryesisht, n\u00eb kodin e funksioneve txn_end(), txn_lock() dhe txn_unlock() n\u00eb Windows dhe POSIX.\n
Korrigjohen paralajm\u00ebrime t\u00eb par\u00ebnd\u00ebsishme MSVC. \u00c7aktivizohen paralajm\u00ebrimet C5286 dhe C5287.\n
Rivendoset logjika e heqjes s\u00eb bllokimeve OFD n\u00eb platformat POSIX. Tani p\u00ebrve\u00e7 EINVAL, merret parasysh edhe kodet e tjera t\u00eb gabimeve (ENOSYS, ENOIMPL, ENOTSUP, ENOSUPP, EOPNOTSUPP), q\u00eb do t\u00eb lejoj\u00eb q\u00eb biblioteka e nd\u00ebrtuar t\u00eb funksionoj\u00eb n\u00eb disa raste, kur b\u00ebrthama\/kontejneri\/emulatori aktual nuk mb\u00ebshtet thirrjet e k\u00ebrkuara sistemike.\n
N\u00eb kuadrin e testit, \u00ebsht\u00eb shtuar mb\u00ebshtetje p\u00ebr opsionin «—numa <num>» p\u00ebr t\u00eb lidhur testin stohastik me nyj\u00ebn NUMA. N\u00eb skriptin battery\/tmux \u00ebsht\u00eb shtuar shp\u00ebrndarja e qart\u00eb sipas nyjeve NUMA, e cila ka rritur ndjesh\u00ebm efikasitetin gjat\u00eb testimit n\u00eb makinat NUMA.\n
N\u00eb skenarin stohastik \u00ebsht\u00eb zbatuar nj\u00eb renditje e rast\u00ebsishme p\u00ebr nisjen e testeve t\u00eb ve\u00e7anta. <\/ul>\n