{"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\/pt\/blog\/news\/opublikovan-valkey-9-0-fork-subd-redis","title":{"rendered":"Lan\u00e7ado Valkey 9.0, um fork do SGBD Redis","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Foi lan\u00e7ado o SGBD Valkey 9.0, que se desvia do SGBD Redis no ano passado. O fork foi criado ap\u00f3s a transi\u00e7\u00e3o do Redis 7.4 para uma licen\u00e7a propriet\u00e1ria. Na vers\u00e3o Redis 8.0, o c\u00f3digo foi retornado para a licen\u00e7a livre AGPLv3, mas isso n\u00e3o afetou o desenvolvimento do projeto Valkey. O Valkey \u00e9 desenvolvido em uma plataforma neutra sob a supervis\u00e3o da organiza\u00e7\u00e3o Linux Foundation, com a participa\u00e7\u00e3o de desenvolvedores de empresas como Amazon, Google, Oracle, Ericsson e Snap. O c\u00f3digo do projeto \u00e9 escrito na linguagem C e \u00e9 distribu\u00eddo sob a licen\u00e7a BSD. Suporta opera\u00e7\u00e3o em Linux, macOS, OpenBSD, NetBSD e FreeBSD.     <\/p>\n<p>Os SGBDs Valkey e Redis oferecem fun\u00e7\u00f5es para armazenar dados no formato chave\/valor, ampliadas pelo suporte a formatos de dados estruturados, como listas, hashes e conjuntos, al\u00e9m da possibilidade de execu\u00e7\u00e3o do lado <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/dts-los-angeles\/\"   title=\"servidor\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3986\">servidor<\/a> manipuladores de scripts na linguagem Lua. O banco de dados \u00e9 armazenado na mem\u00f3ria e sincronizado com a vers\u00e3o no disco ou refletido no log de altera\u00e7\u00f5es no disco, garantindo a preserva\u00e7\u00e3o dos dados em caso de falha. Suporta transa\u00e7\u00f5es, modo &#171;publica\u00e7\u00e3o\/assinatura&#187;, comandos para incremento\/decremento, opera\u00e7\u00f5es em listas e conjuntos (uni\u00e3o, interse\u00e7\u00e3o), renomea\u00e7\u00e3o de chaves, replica\u00e7\u00e3o master-slave, m\u00faltiplas sele\u00e7\u00f5es e fun\u00e7\u00f5es de ordena\u00e7\u00e3o.       <\/p>\n<p>Na nova vers\u00e3o:  <\/p>\n<ul>\n<li class=\"l\"> Para a transfer\u00eancia de dados entre n\u00f3s em um cluster, \u00e9 utilizada a t\u00e9cnica de migra\u00e7\u00e3o at\u00f4mica de slots, onde os dados s\u00e3o transferidos n\u00e3o no n\u00edvel de chaves individuais (uma chave por vez), mas no n\u00edvel do movimento at\u00f4mico de 16384 slots de armazenamento de dados. A transfer\u00eancia \u00e9 realizada usando o formato AOF, que permite enviar elementos individuais de cole\u00e7\u00f5es ao inv\u00e9s de todos os dados associados \u00e0 chave. Essa abordagem aumenta significativamente o desempenho, evita redirecionamentos e elimina atrasos que ocorrem quando o cliente acessa a chave em movimento.\n<li class=\"l\"> Adicionada a possibilidade de definir tempos de vida separados para diferentes campos em hashes associados a uma \u00fanica chave (anteriormente, o tempo de vida estava vinculado \u00e0 chave e abrangia todos os campos de uma vez). Novos comandos foram adicionados para gerenciar o tempo de vida dos dados: HEXPIRE, HEXPIREAT, HEXPIRETIME, HGETEX, HPERSIST, HPEXPIRE, HPEXPIREAT, HPEXPIRETIME, HPTTL, HSETEX e HTTL.\n<li class=\"l\"> Foi disponibilizada a op\u00e7\u00e3o de usar bancos de dados numerados em modo de cluster, onde o espa\u00e7o de chaves \u00e9 dividido em v\u00e1rios bancos de dados diferentes (por padr\u00e3o, 16).\n<li class=\"l\"> A efici\u00eancia do funcionamento de grandes clusters foi aumentada \u2014 um cluster de 2000 n\u00f3s foi demonstrado, capaz de processar um bilh\u00e3o de solicita\u00e7\u00f5es por segundo.\n<li class=\"l\"> Foi adicionada uma otimiza\u00e7\u00e3o que permite, em algumas situa\u00e7\u00f5es, aumentar a capacidade de processamento em 40% atrav\u00e9s do carregamento antecipado de comandos em grupos (pipelining) na mem\u00f3ria.\n<li class=\"l\"> Foi adicionada uma otimiza\u00e7\u00e3o que permite, em algumas situa\u00e7\u00f5es, aumentar a capacidade de processamento em 20% atrav\u00e9s da elimina\u00e7\u00e3o da c\u00f3pia de dados na mem\u00f3ria (zero copy) durante o processamento de grandes requisi\u00e7\u00f5es.\n<li class=\"l\"> Foi adicionada a suporte a tecnologia Multipath TCP para a entrega de pacotes simultaneamente por v\u00e1rias rotas atrav\u00e9s de diferentes interfaces de rede, associadas a diferentes endere\u00e7os IP. O uso do Multipath TCP pode, em algumas situa\u00e7\u00f5es, reduzir a lat\u00eancia em 25%.\n<li class=\"l\"> No BITCOUNT e HyperLogLog, foram adicionadas otimiza\u00e7\u00f5es que utilizam instru\u00e7\u00f5es de CPU SIMD, que em algumas situa\u00e7\u00f5es podem aumentar a capacidade de processamento em 200%.\n<li class=\"l\"> \u00cdndices geo-espaciais agora suportam consultas de localiza\u00e7\u00e3o por coordenadas de pol\u00edgonos.\n<li class=\"l\"> Foi adicionada a comando &#171;DELIFEQ&#187; para remover uma chave, caso o valor associado corresponda ao especificado.\n<li class=\"l\"> No comando &#171;CLIENT LIST&#187; foi implementada a capacidade de definir filtros que eliminam elementos por nome, flags, atividade, banco de dados. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/lir\/ipv4\/\"   title=\"endere\u00e7o IP\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"615\">endere\u00e7o IP<\/a> e permiss\u00f5es.\n<li class=\"l\"> O suporte a 25 comandos, anteriormente considerados obsoletos, foi reativado.              <\/ul>\n<p>Fonte: <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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