{"id":101218,"date":"2021-09-07T22:22:36","date_gmt":"2021-09-07T20:22:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-subd-tarantool-2-8"},"modified":"2021-09-07T22:22:36","modified_gmt":"2021-09-07T20:22:36","slug":"vypusk-subd-tarantool-2-8","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/vypusk-subd-tarantool-2-8","title":{"rendered":"L\u00ebshimi i DBMS Tarantool 2.8","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Nj\u00eb version i ri i DBMS Tarantool 2.8 \u00ebsht\u00eb n\u00eb dispozicion, q\u00eb siguron ruajtje t\u00eb vazhdueshme t\u00eb t\u00eb dh\u00ebnave me kthimin e informacionit nga memoria e p\u00ebrkohshme (baza e t\u00eb dh\u00ebnave n\u00eb memorie). DBMS kombinon shpejt\u00ebsin\u00eb e lart\u00eb t\u00eb p\u00ebrpunimit t\u00eb k\u00ebrkesave, karakteristike p\u00ebr sistemet NoSQL (p\u00ebr shembull, Memcached dhe Redis), me besueshm\u00ebrin\u00eb e DBMS tradicionale (Oracle, MySQL dhe PostgreSQL). Tarantool \u00ebsht\u00eb shkruar n\u00eb gjuh\u00ebn C dhe lejon krijimin e procedurave t\u00eb ruajtura n\u00eb gjuh\u00ebn Lua. Kodi shp\u00ebrndahet n\u00ebn licenc\u00ebn BSD. <\/p>\n
DBMS lejon pun\u00ebn efikase me sasi t\u00eb m\u00ebdha t\u00eb dh\u00ebnash n\u00ebn ngarkesa t\u00eb larta. Nga ve\u00e7orit\u00eb e Tarantool, vlen t\u00eb theksohet mund\u00ebsia e krijimit t\u00eb p\u00ebrpunuesve n\u00eb gjuh\u00ebn Lua (LuaJIT i integruar), p\u00ebrdorimi i formatit MessagePack gjat\u00eb shk\u00ebmbimit t\u00eb t\u00eb dh\u00ebnave me klientin, prania e dy motor\u00ebve t\u00eb integruar (ruajtja n\u00eb RAM me hedhje n\u00eb ruajtjen p\u00ebrhershme dhe ruajtja dy-nivelesh t\u00eb bazuar n\u00eb LSM-tree), mb\u00ebshtetje p\u00ebr \u00e7el\u00ebsa dyt\u00ebsor\u00eb, kat\u00ebr lloje indeksesh (HASH, TREE, RTREE, BITSET), mjete p\u00ebr replikimin sinkron dhe asinkron n\u00eb modalitetin master-master, mb\u00ebshtetje p\u00ebr autentifikimin e lidhjeve dhe kontrollin e aksesit, si dhe mund\u00ebsin\u00eb e p\u00ebrpunimit t\u00eb k\u00ebrkesave SQL. <\/p>\n
Ndryshimet kryesore: <\/p>\n
\n
Stabilizimi i MVCC (Menaxhimi i m\u00eb shum\u00eb versioneve t\u00eb qasjes s\u00eb p\u00ebrbashk\u00ebt) n\u00eb engine-in memtx n\u00eb kujtes\u00eb.\n
Mb\u00ebshtetje p\u00ebr transaksionin n\u00eb protokollin binar IPROTO. M\u00eb par\u00eb, p\u00ebr t\u00eb krijuar nj\u00eb transaksion ishte e nevojshme t\u00eb shkruhej nj\u00eb procedur\u00eb e ruajtur n\u00eb gjuh\u00ebn Lua.\n
Mb\u00ebshtetje p\u00ebr replikimin sinkron, i cili funksionon n\u00eb lidhje me tabela t\u00eb ve\u00e7anta.\n
Mekanizmi i kalimit automatik n\u00eb nyj\u00ebn rezerv\u00eb (failover) mbi baz\u00ebn e protokollit RAFT. N\u00eb Tarantool, replikimi asinkron me baz\u00ebn WAL \u00ebsht\u00eb implementuar prej koh\u00ebsh, tani mund t\u00eb mos e ndiqni manualisht nyj\u00ebn kryesore.\n
Kalimi automatik i nyj\u00ebs kryesore \u00ebsht\u00eb gjithashtu i disponuesh\u00ebm n\u00eb rastin e topologjis\u00eb me segmentim (sharding) t\u00eb t\u00eb dh\u00ebnave (p\u00ebrdoret biblioteka vshard, e cila shp\u00ebrndan t\u00eb dh\u00ebnat n\u00eb servera duke p\u00ebrdorur koshat virtual\u00eb (bucket)).\n
P\u00ebrmir\u00ebsimi i framework-ut p\u00ebr nd\u00ebrtimin e aplikacioneve klaster Tarantool Cartridge n\u00eb mjedise virtuale. Tarantool Cartridge tani mban m\u00eb mir\u00eb ngarkes\u00ebn.\n
Puna e rolit Ansible p\u00ebr shp\u00ebrndarjen e klasterit \u00ebsht\u00eb p\u00ebrshpejtuar deri n\u00eb 15-20 her\u00eb. K\u00ebshtu, puna me klastere t\u00eb m\u00ebdha \u00ebsht\u00eb b\u00ebr\u00eb m\u00eb e thjesht\u00eb.\n
P\u00ebrmir\u00ebsimi p\u00ebr migrimin e thjesht\u00eb nga versionet e vjetra >1.6 dhe < 1.10 \u00ebsht\u00eb tani i disponuesh\u00ebm p\u00ebrmes opsionit shtes\u00eb n\u00eb fillim. M\u00eb par\u00eb, migrimi duhej t\u00eb b\u00ebhej p\u00ebrmes instalimit t\u00eb versionit ndihm\u00ebs 1.10.\n
\u00cbsht\u00eb optimizuar ruajtja e tuple-ve me madh\u00ebsi t\u00eb vog\u00ebl.\n
N\u00eb SQL \u00ebsht\u00eb implementuar mb\u00ebshtetje p\u00ebr UUID dhe \u00ebsht\u00eb p\u00ebrmir\u00ebsuar konvertimi i tipeve. <\/ul>\n
\u00cbsht\u00eb e r\u00ebnd\u00ebsishme t\u00eb theksohet se q\u00eb nga versioni 2.10 do t\u00eb implementohet nj\u00eb politik\u00eb e re p\u00ebr formimin e lirimeve. N\u00eb publikimet e r\u00ebnd\u00ebsishme me ndryshime q\u00eb thyejn\u00eb pajtueshm\u00ebrin\u00eb e prapme, do t\u00eb ndryshohet numri i par\u00eb i versionit; p\u00ebr atyre nd\u00ebrmjet\u00ebs t\u00eb dyti, nd\u00ebrsa p\u00ebr ato korrigjuese t\u00eb tret\u00eb (pas 2.10 do t\u00eb l\u00ebshohet versioni 3.0.0). \n Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"