{"id":115080,"date":"2024-04-15T14:30:00","date_gmt":"2024-04-15T12:30:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/proekt-redka-razvivaet-realizacziyu-protokola-i-api-redis-poverh-sqlite"},"modified":"2024-04-15T14:30:00","modified_gmt":"2024-04-15T12:30:00","slug":"proekt-redka-razvivaet-realizacziyu-protokola-i-api-redis-poverh-sqlite","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/proekt-redka-razvivaet-realizacziyu-protokola-i-api-redis-poverh-sqlite","title":{"rendered":"Projekt Redka vyv\u00edj\u00ed implementaci protokolu a API Redis nad SQLite","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Byly zve\u0159ejn\u011bny prvn\u00ed vyd\u00e1n\u00ed projektu Redka, kter\u00fd se zam\u011b\u0159uje na poskytov\u00e1n\u00ed RESP protokolu a API kompatibiln\u00edch se SDB Redis, ale implementovan\u00fdch nad knihovnou SQLite. Vyu\u017eit\u00ed SQLite nav\u00edc umo\u017e\u0148uje p\u0159\u00edstup k dat\u016fm pomoc\u00ed jazyka SQL, nap\u0159\u00edklad pro vytv\u00e1\u0159en\u00ed zpr\u00e1v nebo anal\u00fdzu dat. Podporuje se pou\u017eit\u00ed ACID transakc\u00ed. Redka m\u016f\u017ee b\u00fdt spu\u0161t\u011bna jako serveru<\/a>, p\u0159ij\u00edmaj\u00edc\u00ed dotazy p\u0159es s\u00ed\u0165, nebo pou\u017eita jako modul pro jazyk Go. K\u00f3d projektu je naps\u00e1n v jazyce Go a je distribuov\u00e1n pod licenc\u00ed BSD. <\/p>\n

V sou\u010dasnosti byla do Redka p\u0159id\u00e1na podpora typ\u016f pro pr\u00e1ci se \u0159et\u011bzci a hashi, stejn\u011b jako p\u0159\u00edkazy pro manipulaci s textov\u00fdmi daty, kl\u00ed\u010di, transakcemi a hashi. Nap\u0159\u00edklad jsou k dispozici p\u0159\u00edkazy pro nastaven\u00ed a z\u00edsk\u00e1n\u00ed jednoho nebo v\u00edce \u0159et\u011bzcov\u00fdch hodnot v\u00e1zan\u00fdch na kl\u00ed\u010d, nastaven\u00ed doby \u017eivota kl\u00ed\u010d\u016f, inkrementaci\/dekrementaci hodnot, vyhled\u00e1v\u00e1n\u00ed kl\u00ed\u010d\u016f podle vzoru, p\u0159ejmenov\u00e1v\u00e1n\u00ed kl\u00ed\u010d\u016f, prov\u00e1d\u011bn\u00ed s\u00e9rie p\u0159\u00edkaz\u016f v r\u00e1mci transakce, zru\u0161en\u00ed transakce a manipulaci s poli v hashi. <\/p>\n

V nejbli\u017e\u0161\u00ed dob\u011b pl\u00e1nujeme p\u0159idat podporu pro seznamy, kolekce (sety) a se\u0159azen\u00e9 kolekce. Vzd\u00e1len\u011bj\u0161\u00ed perspektivn\u011b se o\u010dek\u00e1v\u00e1 implementace algoritmu HyperLogLog, mo\u017enosti manipulace s geografick\u00fdmi sou\u0159adnicemi a p\u0159\u00edkazy pro interakci pomoc\u00ed modelu publish\/subscribe. Zat\u00edm se nepl\u00e1nuje p\u0159id\u00e1n\u00ed podpory pro skripty v jazyce Lua, autentizaci, ACL, watch\/unwatch a mo\u017enost pr\u00e1ce s jednou serveru<\/a> \u010di v\u00edce datab\u00e1zemi. Rozhodn\u011b nebude implementov\u00e1na podpora cluster\u016f (Redis Cluster) a monitorov\u00e1n\u00ed (Redis Sentinel). <\/p>\n

Testov\u00e1n\u00ed v\u00fdkonu pomoc\u00ed n\u00e1stroj\u016f projektu Redis uk\u00e1zalo, \u017ee Redka zaost\u00e1v\u00e1 2-6 kr\u00e1t za Redisem kv\u016fli nedostatku specifick\u00fdch optimalizac\u00ed pro ukl\u00e1d\u00e1n\u00ed dat ve form\u00e1tu kl\u00ed\u010d\/hodnota. Vytvo\u0159en\u00e9 testovac\u00ed prost\u0159ed\u00ed uk\u00e1zalo, \u017ee Redis dos\u00e1hl v\u00fdkonu 133 tis\u00edc operac\u00ed SET za sekundu a 139 tis\u00edc operac\u00ed GET za sekundu, zat\u00edmco v\u00fdkon Redka \u010dinil 30 tis\u00edc SET za sekundu a 63 tis\u00edc GET za sekundu ve sc\u00e9n\u00e1\u0159i, kdy byla datab\u00e1ze um\u00edst\u011bna v opera\u010dn\u00ed pam\u011bti. P\u0159i ukl\u00e1d\u00e1n\u00ed datab\u00e1ze na disk byl v\u00fdkon Redka 22 tis\u00edc operac\u00ed SET za sekundu a 56 tis\u00edc GET za sekundu.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043f\u0435\u0440\u0432\u044b\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Redka, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0435 RESP-\u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 \u0438 API, \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u044b\u0445 \u0441 \u0421\u0423\u0411\u0414 Redis, \u043d\u043e \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043f\u043e\u0432\u0435\u0440\u0445 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 SQLite. \u0417\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u0435 SQLite \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u0431\u0440\u0430\u0449\u0430\u0442\u044c\u0441\u044f \u043a \u0434\u0430\u043d\u043d\u044b\u043c \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u044f\u0437\u044b\u043a\u0430 SQL, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0434\u043b\u044f \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043e\u0442\u0447\u0451\u0442\u043e\u0432 \u0438\u043b\u0438 \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u0434\u0430\u043d\u043d\u044b\u0445. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 ACID-\u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439. Redka \u043c\u043e\u0436\u0435\u0442 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0442\u044c\u0441\u044f \u0432 \u0444\u043e\u0440\u043c\u0435 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u044e\u0449\u0435\u0433\u043e \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u043f\u043e \u0441\u0435\u0442\u0438, \u0438\u043b\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0432 \u0432\u0438\u0434\u0435 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