{"id":104195,"date":"2022-05-31T15:36:40","date_gmt":"2022-05-31T13:36:41","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/proekt-dragonfly-razvivaet-bolee-bystruyu-zamenu-redis-i-memcached"},"modified":"2022-05-31T15:36:40","modified_gmt":"2022-05-31T13:36:41","slug":"proekt-dragonfly-razvivaet-bolee-bystruyu-zamenu-redis-i-memcached","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/proekt-dragonfly-razvivaet-bolee-bystruyu-zamenu-redis-i-memcached","title":{"rendered":"Dragonfly projekt arendab kiiremat alternatiivi Redis'ile ja Memcached'ile","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Esimene versioon Dragonfly m\u00e4lukasutuse s\u00fcsteemist on n\u00fc\u00fcd saadaval. See toetab Memcached'i ja Redis'e protokolle ning v\u00f5imaldab teha p\u00e4ringuid palju suurema j\u00f5udluse ja madalama m\u00e4lutarbimisega. S\u00fcsteem manipuleerib andmetega v\u00f5tme\/v\u00e4\u00e4rtuse formaadis ja v\u00f5ib olla kerge lahendus k\u00f5rge koormusega veebisaitide kiirusel, vahem\u00e4lustades aeglaseid p\u00e4ringuid andmebaasile ja vaheandmeid m\u00e4lus. Dragonfly kood on kirjutatud C\/C++ keeltes ja jagatakse BSL (Business Source License) litsentsi alusel. <\/p>\n

BSL litsentsi pakkusid MySQLi kaasasutajad alternatiivina Open Core mudelile. BSL p\u00f5him\u00f5te seisneb selles, et laiendatud funktsionaalsuse kood on algselt muudatuste tegemiseks saadaval, kuid teatud aja jooksul v\u00f5ib seda tasuta kasutada ainult t\u00e4iendavate tingimuste t\u00e4itmise korral, mille \u00fcletamiseks on vajalik kaubandusliku litsentsi ostmine. Dragonfly projekti t\u00e4iendavad litsentsitingimused m\u00e4\u00e4ravad, et kood muudetakse Apache 2.0 litsentsiks alles 1. juunil 2027. Kuni selle ajani lubab litsents koodi kasutada ainult oma teenuste ja toodete toimimise tagamiseks, kuid keelab selle rakendamise tasuliste pilveteenuste loomisel, mis on Dragonfly kohalduseks. <\/p>\n

Arendajate v\u00e4idete ja tehtud testide p\u00f5hjal pretendeerib Dragonfly tiitlile k\u00f5ige kiirema m\u00e4luhalduss\u00fcsteemi v\u00e4rav. Dragonfly on suutnud saavutada t\u00fc\u00fcpiliste koormuste puhul 25-kordse j\u00f5udluse kasvu ja kolme korda v\u00e4iksema m\u00e4lu tarbimise v\u00f5rreldes Redisiga. server<\/a> Dragonfly suudab t\u00f6\u00f6delda miljoneid p\u00e4ringuid sekundis, n\u00e4iteks Amazon EC2 c6gn.16xlarge keskkonnas saavutati j\u00f5udlus 3.8 miljonit p\u00e4ringut sekundis.

\"Dragonfly<\/center> <\/p>\n

5 GB andmete salvestamise testides n\u00f5udis Dragonfly 30% v\u00e4hem m\u00e4lu kui Redis. Snapshot'ide loomise ajal k\u00e4suga «bgsave» suureneb m\u00e4lu kasutamine, kuid tipus j\u00e4\u00e4b see peaaegu kolm korda madalamaks kui Redis, samas kui snapshot'i kirjutamine toimub oluliselt kiiremini (Dragonfly's oli snapshot 30 sekundi jooksul salvestatud, Redis - 42 sekundi jooksul).

\"Dragonfly<\/center> <\/p>\n

Korge j\u00f5udlus saavutatakse t\u00e4nu mitme v\u00f5tme arhitektuurile ilma ressursside jagamiseta (shared-nothing), mis t\u00e4hendab, et iga teema jaoks on eraldi isoleeritud t\u00f6\u00f6tleja koos oma andmeportsjoniga, t\u00f6\u00f6tades ilma mutex'ide ja spin-lockideta. Mitmete v\u00f5tmete t\u00f6\u00f6tlemise aatomilisuse tagamiseks kasutatakse kergkaalu blokke VLL. Informatsiooni t\u00f5husaks salvestamiseks m\u00e4lus kasutatakse dashtable struktuuri, mis rakendab jaotatud hash-tabelite varianti. <\/p>\n

Esimese v\u00e4ljaande v\u00f5imalustest tasub m\u00e4rkida RESP2 protokolli ja 130 Redis k\u00e4sku, mis vastavad umbkaudu Redis 2.8 v\u00e4ljaande funktsionaalsusele. Lisaks toetab Dragonfly k\u00f5iki memcached k\u00e4sku, v\u00e4lja arvatud CAS (check-and-set), pakub as\u00fcnkroonsete toimingute tuge snapshottide loomiseks, tagab ettearvatava m\u00e4lu tarbimise, sisaldab sisseehitatud Lua 5.4 t\u00f5lgendajat ning toetab keerulisi andmet\u00fc\u00fcpe nagu hash'id, kogud ja loendid (ZSET, HSET, LIST, SETS ja STRING). <\/p>\n

Saadaval on eraldi vahem\u00e4lu re\u017eiim, kus vanade andmete automaatne asendamine uute andmetega toimub p\u00e4rast m\u00e4luruumi t\u00e4itumist. On v\u00f5imalik seostada andmete eluea pikkusega, mille jooksul andmeid peetakse kehtivaks. Salvestusseisund v\u00f5ib taustal kettale salvestuda, et see p\u00e4rast taask\u00e4ivitamist taastada. S\u00fcsteemi haldamiseks on saadaval HTTP-konsool (seondub TCP-porti 6379) ja API m\u00f5\u00f5dikute edastamiseks, mis on \u00fchilduv Prometheusega. J\u00e4rgmistes versioonides on plaanis laiendada Redis k\u00e4skude toetust ja rakendada salvestuse replitseerimise v\u00f5imalust, et tagada talitlush\u00e4irekindlus ja koormuse tasakaalustus.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043a\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 Dragonfly, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 Memcached \u0438 Redis, \u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u0441 \u0433\u043e\u0440\u0430\u0437\u0434\u043e \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c\u044e \u0438 \u0441 \u043c\u0435\u043d\u044c\u0448\u0438\u043c \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u0435\u043c \u043f\u0430\u043c\u044f\u0442\u0438. \u0421\u0438\u0441\u0442\u0435\u043c\u0430 \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u0443\u0435\u0442 \u0434\u0430\u043d\u043d\u044b\u043c\u0438 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 \u043a\u043b\u044e\u0447\/\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0442\u044c\u0441\u044f \u043a\u0430\u043a \u043b\u0435\u0433\u043a\u043e\u0432\u0435\u0441\u043d\u043e\u0435 \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0434\u043b\u044f \u0443\u0441\u043a\u043e\u0440\u0435\u043d\u0438\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0432\u044b\u0441\u043e\u043a\u043e\u043d\u0430\u0433\u0440\u0443\u0436\u0435\u043d\u043d\u044b\u0445 \u0441\u0430\u0439\u0442\u043e\u0432, \u043a\u044d\u0448\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043c\u0435\u0434\u043b\u0435\u043d\u043d\u044b\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u043a \u0421\u0423\u0411\u0414 \u0438 \u043f\u0440\u043e\u043c\u0435\u0436\u0443\u0442\u043e\u0447\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":104196,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-104195","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Projekt Dragonfly arendab kiiremalt alternatiivi Redis'le ja Memcached'le | ProHoster","description":"Esimese v\u00e4ljaande andmeedastusm\u00e4lu s\u00fcsteem Dragonfly on n\u00fc\u00fcd saadaval, pakkudes tuge Memcached ja Redis protokollidele, kuid v\u00f5imaldades t\u00e4ita p\u00e4ringuid palju k\u00f5rgema j\u00f5udlusega ja v\u00e4iksema m\u00e4lutarbimisega. 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\u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u0431\u043e\u043b\u0435\u0435 \u0431\u044b\u0441\u0442\u0440\u0443\u044e \u0437\u0430\u043c\u0435\u043d\u0443 Redis \u0438 Memcached | ProHoster","og:description":"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043a\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 Dragonfly, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 Memcached \u0438 Redis, \u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c 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