{"id":146080,"date":"2025-10-22T11:11:56","date_gmt":"2025-10-22T09:11:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opublikovan-valkey-9-0-fork-subd-redis"},"modified":"2025-10-22T11:11:56","modified_gmt":"2025-10-22T09:11:56","slug":"opublikovan-valkey-9-0-fork-subd-redis","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/opublikovan-valkey-9-0-fork-subd-redis","title":{"rendered":"Valkey 9.0, en fork af databasen Redis, er blevet offentliggjort.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Der nye version af databasen Valkey 9.0 er blevet frigivet, efter at den sidste \u00e5r blev adskilt fra databasen Redis. Forken blev dannet efter overgangen af Redis 7.4 til en kommerciel licens. I udgivelsen af Redis 8.0 blev koden tilbagef\u00f8rt til den \u00e5bne AGPLv3-licens, men dette p\u00e5virkede ikke udviklingen af Valkey-projektet. Valkey udvikles p\u00e5 en neutral platform under Linux Foundation med deltagelse af udviklere fra virksomheder som Amazon, Google, Oracle, Ericsson og Snap. Projektets kode er skrevet i C og distribueres under BSD-licensen. Der leveres support til Linux, macOS, OpenBSD, NetBSD og FreeBSD.     <\/p>\n<p>Databaserne Valkey og Redis tilbyder funktioner til at gemme data i n\u00f8gle\/v\u00e6rdi-format, udvidet med st\u00f8tte til strukturerede dataformater s\u00e5som lister, hashes og s\u00e6t, samt muligheden for at udf\u00f8re <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/server\/dts-los-angeles\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3986\">server<\/a> scripts-h\u00e5ndterere p\u00e5 Lua-sprog. Database opbevares i hukommelsen og synkroniseres med versionen p\u00e5 disk eller afspejles i loggen over \u00e6ndringer p\u00e5 disken, hvilket sikrer databeskyttelse ved uventet nedlukning. Transaktioner, 'publicering\/abonnement' tilstand, kommandoer til inkrementering\/ dekrementering, operationer p\u00e5 lister og m\u00e6ngder (fletning, krydsning), omd\u00f8bning af n\u00f8gler, master-slave replikation, multiple foresp\u00f8rgsler og sorteringsfunktioner underst\u00f8ttes.       <\/p>\n<p>I den nye version:  <\/p>\n<ul>\n<li class=\"l\"> For at overf\u00f8re data mellem noder i klyngen anvendes teknikken til atomar slotmigration, hvor data flyttes ikke p\u00e5 niveauet for individuelle n\u00f8gler (\u00e9n n\u00f8gle ad gangen), men p\u00e5 niveauet for atomisk flytning af 16384 byte dataslots. Overf\u00f8rslen udf\u00f8res ved hj\u00e6lp af AOF-formatet, som muligg\u00f8r forsendelse af individuelle elementer i samlinger i stedet for alle data, der er relateret til n\u00f8glen. Denne fremgangsm\u00e5de forbedrer ydeevnen markant, undg\u00e5r omdirigeringer og eliminerer forsinkelser, der opst\u00e5r, n\u00e5r klienten tilg\u00e5r den flyttede n\u00f8gle.\n<li class=\"l\"> Der er tilf\u00f8jet muligheden for at angive en separat levetid for forskellige felter i hashes, der er knyttet til \u00e9n n\u00f8gle (tidligere var levetiden bundet til n\u00f8glen og omfattede alle felter samtidig). For at styre levetiden af data er nye kommandoer blevet tilf\u00f8jet: HEXPIRE, HEXPIREAT, HEXPIRETIME, HGETEX, HPERSIST, HPEXPIRE, HPEXPIREAT, HPEXPIRETIME, HPTTL, HSETEX og HTTL.\n<li class=\"l\"> Muligheden for at bruge nummererede databaser i klyngemodus er blevet tilf\u00f8jet, hvor n\u00f8gleomr\u00e5det opdeles i flere forskellige databaser (standard er 16).\n<li class=\"l\"> Effektiviteten af store klynger er blevet forbedret - der er vist en klynge med 2000 noder, som kan h\u00e5ndtere en milliard foresp\u00f8rgsler per sekund.\n<li class=\"l\"> Der er tilf\u00f8jet en optimering, der i nogle situationer kan \u00f8ge b\u00e5ndbredden med op til 40% ved at forudindl\u00e6se grupperede (pipelining) kommandoer i hukommelsen.\n<li class=\"l\"> Der er tilf\u00f8jet en optimering, der i nogle situationer kan \u00f8ge b\u00e5ndbredden med op til 20% ved at undg\u00e5 datakopiering i hukommelsen (zero copy) under behandling af store foresp\u00f8rgsler.\n<li class=\"l\"> Underst\u00f8ttelse af Multipath TCP-teknologi er blevet tilf\u00f8jet for at organisere levering af pakker samtidig via flere ruter gennem forskellige netv\u00e6rksgr\u00e6nseflader, der er knyttet til forskellige IP-adresser. Anvendelsen af Multipath TCP kan i nogle situationer reducere latensen med 25%.\n<li class=\"l\"> Optimeringer, der bruger SIMD-processor instruktioner, er tilf\u00f8jet til BITCOUNT og HyperLogLog, som i nogle situationer kan \u00f8ge b\u00e5ndbredden med 200%.\n<li class=\"l\"> I de geospatiale indekser er der tilf\u00f8jet st\u00f8tte til foresp\u00f8rgsler om placering baseret p\u00e5 polygonkoordinater.\n<li class=\"l\"> Funktionen 'DELIFEQ' er tilf\u00f8jet til at slette en n\u00f8gle, hvis den tilknyttede v\u00e6rdi matcher det angivne.\n<li class=\"l\"> I kommandoen 'CLIENT LIST' er der implementeret mulighed for at angive filtre, der sorterer elementer efter navn, flag, aktivitet, database, <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/lir\/ipv4\/\"   title=\"IP-adressen\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"615\">IP-adressen<\/a> og bef\u00f8jelser, blevet implementeret.\n<li class=\"l\"> St\u00f8tten til 25 kommandoer, der tidligere var erkl\u00e6ret for\u00e6ldede, er genoptaget.              <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64096\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u0421\u0423\u0411\u0414 Valkey 9.0, \u0432 \u043f\u0440\u043e\u0448\u043b\u043e\u043c \u0433\u043e\u0434\u0443 \u043e\u0442\u0432\u0435\u0442\u0432\u0438\u0432\u0448\u0435\u0439\u0441\u044f \u043e\u0442 \u0421\u0423\u0411\u0414 Redis. \u0424\u043e\u0440\u043a \u0431\u044b\u043b \u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d \u043f\u043e\u0441\u043b\u0435 \u043f\u0435\u0440\u0435\u0432\u043e\u0434\u0430 Redis 7.4 \u043d\u0430 \u043f\u0440\u043e\u043f\u0440\u0438\u0435\u0442\u0430\u0440\u043d\u0443\u044e \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u044e. \u0412 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Redis 8.0 \u043a\u043e\u0434 \u0431\u044b\u043b \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0451\u043d \u043d\u0430 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u0443\u044e \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u044e AGPLv3, \u043d\u043e \u044d\u0442\u043e \u043d\u0435 \u043f\u043e\u0432\u043b\u0438\u044f\u043b\u043e \u043d\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Valkey. 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