{"id":118714,"date":"2024-07-31T15:43:08","date_gmt":"2024-07-31T13:43:08","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-subd-redis-7-4-perevedyonnyj-na-proprietarnye-liczenzii"},"modified":"2024-07-31T15:43:08","modified_gmt":"2024-07-31T13:43:08","slug":"vypusk-subd-redis-7-4-perevedyonnyj-na-proprietarnye-liczenzii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-subd-redis-7-4-perevedyonnyj-na-proprietarnye-liczenzii","title":{"rendered":"Lan\u00e7amento do SGBD Redis 7.4, convertido para licen\u00e7as propriet\u00e1rias","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Foi lan\u00e7ado o Redis 7.4, um sistema de banco de dados NoSQL. O Redis oferece funcionalidades para armazenar dados no formato chave\/valor, com suporte expandido para formatos de dados estruturados, como listas, hashes e conjuntos, al\u00e9m da capacidade de executar scripts manipuladores no lado do servidor em Lua. Ao contr\u00e1rio dos sistemas de armazenamento em mem\u00f3ria, como o Memcached, o Redis armazena os dados n\u00e3o apenas na mem\u00f3ria, mas tamb\u00e9m no disco, garantindo a preserva\u00e7\u00e3o do banco de dados em caso de falhas.         <\/p>\n<p>O Redis 7.4 foi anunciado como a primeira vers\u00e3o disponibilizada com novas condi\u00e7\u00f5es de licen\u00e7a \u2014 ao inv\u00e9s da licen\u00e7a BSD anteriormente aplicada, o c\u00f3digo agora est\u00e1 dispon\u00edvel sob as licen\u00e7as propriet\u00e1rias RSALv2 (Licen\u00e7a de Fonte do Redis v2) e SSPLv1 (Licen\u00e7a P\u00fablica do Lado do Servidor v1). Aqueles que desejam continuar usando o c\u00f3digo sob a licen\u00e7a BSD podem aproveitar os projetos Valkey (um fork desenvolvido com a participa\u00e7\u00e3o da Amazon, Google, Oracle, Ericsson e Snap), Redict (um fork do autor da interface de usu\u00e1rio Sway e da linguagem Hare), Garnet (um SGBD da Microsoft compat\u00edvel com Redis) ou KeyDB (um fork de alta performance do Redis 5 desenvolvido pelo Snapchat).    <\/p>\n<p>As licen\u00e7as SSPL e RSAL levam \u00e0 discrimina\u00e7\u00e3o de categorias espec\u00edficas de usu\u00e1rios, o que n\u00e3o permite consider\u00e1-las abertas ou livres. Por seus objetivos, ambas as licen\u00e7as se assemelham, com a diferen\u00e7a sendo que a licen\u00e7a SSPL \u00e9 baseada na licen\u00e7a copyleft AGPLv3 e a licen\u00e7a RSAL \u00e9 baseada na licen\u00e7a permissiva BSD. A licen\u00e7a RSAL permite o uso, modifica\u00e7\u00e3o, distribui\u00e7\u00e3o e integra\u00e7\u00e3o do c\u00f3digo em aplicativos, exceto quando esses aplicativos s\u00e3o comerciais ou s\u00e3o utilizados para fornecer servi\u00e7os gerenciados pagos. A licen\u00e7a SSPL inclui ainda um requisito de entrega sob a mesma licen\u00e7a n\u00e3o apenas do c\u00f3digo do pr\u00f3prio aplicativo, mas tamb\u00e9m dos c\u00f3digos-fonte de todos os componentes envolvidos na presta\u00e7\u00e3o de servi\u00e7os em nuvem.     <\/p>\n<p>O Redis suporta transa\u00e7\u00f5es que permitem executar um grupo de comandos em um \u00fanico passo, garantindo a consist\u00eancia e a sequ\u00eancia (comandos de outras requisi\u00e7\u00f5es n\u00e3o podem interferir) na execu\u00e7\u00e3o do conjunto de comandos especificado, e em caso de problemas, permitindo reverter as mudan\u00e7as. Todos os dados s\u00e3o totalmente armazenados em mem\u00f3ria. Bibliotecas de cliente est\u00e3o dispon\u00edveis para a maioria das linguagens populares, incluindo Perl, Python, PHP, Java, Ruby e Tcl.     <\/p>\n<p>Para o gerenciamento de dados, s\u00e3o fornecidos comandos como incremento\/decremento, opera\u00e7\u00f5es padr\u00e3o em listas e conjuntos (uni\u00e3o, interse\u00e7\u00e3o), renomea\u00e7\u00e3o de chaves, sele\u00e7\u00f5es m\u00faltiplas e fun\u00e7\u00f5es de ordena\u00e7\u00e3o. Dois modos de armazenamento s\u00e3o suportados: sincroniza\u00e7\u00e3o peri\u00f3dica de dados no disco e manuten\u00e7\u00e3o de um log de altera\u00e7\u00f5es no disco. No segundo caso, \u00e9 garantida a preserva\u00e7\u00e3o completa de todas as altera\u00e7\u00f5es. \u00c9 poss\u00edvel organizar replica\u00e7\u00e3o de dados master-slave em v\u00e1rios <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/\"   title=\"servidores\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1723\">servidores<\/a>, executado em modo n\u00e3o bloqueante. Tamb\u00e9m est\u00e1 dispon\u00edvel o modo de troca de mensagens \"publica\u00e7\u00e3o\/assinatura\", onde um canal \u00e9 criado e as mensagens desse canal s\u00e3o distribu\u00eddas para os clientes por assinatura.              <\/p>\n<p>Principais mudan\u00e7as na funcionalidade do Redis 7.4:   <\/p>\n<ul>\n<li class=\"l\"> Foi adicionada a capacidade de limitar o tempo de vida de campos individuais em hashes, estruturas para armazenar cole\u00e7\u00f5es agrupadas de registros no formato chave-valor. Ao contr\u00e1rio da defini\u00e7\u00e3o de tempo de vida para a chave, a altera\u00e7\u00e3o proposta permite n\u00e3o apenas definir um tempo de vida total para todos os campos relacionados, mas tamb\u00e9m valores de tempo de vida individuais para campos espec\u00edficos, o que pode ser utilizado, por exemplo, para garantir um ciclo de vida mais curto para tokens de autentica\u00e7\u00e3o, em compara\u00e7\u00e3o com outros dados de sess\u00e3o.\n<li class=\"l\"> Novos tipos de dados bfloat16 e float16 foram propostos, otimizados para uso em aplica\u00e7\u00f5es de aprendizado de m\u00e1quina e permitindo a redu\u00e7\u00e3o do consumo de mem\u00f3ria em compara\u00e7\u00e3o com os tipos float32 e float64 dispon\u00edveis anteriormente. Ao serem utilizados em hashes, os novos tipos possibilitam uma redu\u00e7\u00e3o de 47% no consumo de mem\u00f3ria em bancos de dados vetoriais, diminuem a lat\u00eancia de extra\u00e7\u00e3o de dados em 59% e reduzem o tempo de cria\u00e7\u00e3o de \u00edndices em 58% em compara\u00e7\u00e3o com o tipo float64.\n<li class=\"l\"> Facilitado o uso de \u00edndices secund\u00e1rios. Ao consultar informa\u00e7\u00f5es de \u00edndices secund\u00e1rios, agora n\u00e3o \u00e9 mais necess\u00e1rio escapar certos caracteres especiais, como \"@\" e \".\", podendo usar aspas duplas para envolver os dados. Al\u00e9m disso, o indexa\u00e7\u00e3o de campos vazios e ausentes foi significativamente melhorada \u2014 para criar \u00edndices e formular consultas que levam em conta a presen\u00e7a de campos, foram introduzidas a nova palavra-chave INDEXMISSING e a fun\u00e7\u00e3o ismissing(). Novos operadores INTERSECT e DISJOINT foram adicionados para facilitar a busca de dados geoespaciais. Novas funcionalidades para an\u00e1lise do consumo de mem\u00f3ria do \u00edndice foram adicionadas.\n<li class=\"l\"> Foi adicionada a compatibilidade com filtros para excluir elementos em conjuntos de dados adicionados, por exemplo, ao carregar periodicamente dados de sensores em um banco de dados, pode-se adicionar um filtro para ignorar valores cuja diferen\u00e7a de tempo em rela\u00e7\u00e3o ao valor anterior seja menor que um determinado limiar.\n<li class=\"l\"> O suporte a gatilhos e fun\u00e7\u00f5es em JavaScript propostos na vers\u00e3o anterior foi encerrado.             <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61632\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0421\u0423\u0411\u0414 Redis 7.4, \u043e\u0442\u043d\u043e\u0441\u044f\u0449\u0435\u0439\u0441\u044f \u043a \u043a\u043b\u0430\u0441\u0441\u0443 NoSQL-\u0441\u0438\u0441\u0442\u0435\u043c. Redis \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0434\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 \u043a\u043b\u044e\u0447\/\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435, \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u043d\u044b\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0444\u043e\u0440\u043c\u0430\u0442\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a \u0441\u043f\u0438\u0441\u043a\u0438, \u0445\u044d\u0448\u0438 \u0438 \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u0430, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c\u044e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0432-\u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Lua. \u0412 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 \u0441\u0438\u0441\u0442\u0435\u043c \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0432 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a Memcached, Redis \u0445\u0440\u0430\u043d\u0438\u0442 \u0411\u0414 \u043d\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-118714","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u0421\u0423\u0411\u0414 Redis 7.4, \u043e\u0442\u043d\u043e\u0441\u044f\u0449\u0435\u0439\u0441\u044f \u043a \u043a\u043b\u0430\u0441\u0441\u0443 NoSQL-\u0441\u0438\u0441\u0442\u0435\u043c.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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