{"id":1920,"date":"2015-09-01T17:13:19","date_gmt":"2015-09-01T17:13:19","guid":{"rendered":"https:\/\/www.couchbase.com\/blog\/?p=1920"},"modified":"2025-10-09T07:17:49","modified_gmt":"2025-10-09T14:17:49","slug":"introducing-developer-preview-for-couchbase-server-4-0","status":"publish","type":"post","link":"https:\/\/www.couchbase.com\/blog\/pt\/introducing-developer-preview-for-couchbase-server-4-0\/","title":{"rendered":"Apresentando o Couchbase Server 4.0 Developer Preview"},"content":{"rendered":"<p>Estamos animados para abrir a cortina da pr\u00e9via para desenvolvedores do Couchbase Server 4.0. Essa vers\u00e3o antecipada vem com muitos aprimoramentos excelentes, incluindo uma nova interface de consulta com N1QL (SQL+JSON), uma indexa\u00e7\u00e3o totalmente nova para consultas de baixa lat\u00eancia com Global Secondary Indexing (GSI), uma nova arquitetura revolucion\u00e1ria para escalabilidade chamada Multi-Dimensional Scaling, seguran\u00e7a e conformidade simplificadas e muito mais...<\/p>\n<p>Alguns desses recursos est\u00e3o sendo trabalhados h\u00e1 mais de dois anos e se baseiam nos aprimoramentos arquitet\u00f4nicos fundamentais, como o DCP (Database Change Protocol) e o Tunable Memory fornecidos nas vers\u00f5es anteriores. Com esses acr\u00e9scimos e muitos outros, o Couchbase Server 4.0 \u00e9 um grande lan\u00e7amento que oferece um grande impacto para as empresas que buscam uma plataforma NoSQL escal\u00e1vel e em tempo real.<\/p>\n<table style=\"background-color: red;color: white;text-align: center\" align=\"center\">\n<tbody>\n<tr>\n<th style=\"text-align: center\"><a style=\"color: white\" href=\"https:\/\/www.couchbase.com\/blog\/pt\/nosql-databases\/downloads\/#PreRelease\">Download do Couchbase Server 4.0 Developer Preview<\/a><\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>O que h\u00e1 de novo na vers\u00e3o 4.0?<\/h2>\n<p>Vamos mergulhar de cabe\u00e7a!<\/p>\n<h2><strong>N1QL - SQL + JSON <\/strong><\/h2>\n<p>Para muitos de voc\u00eas, o SQL \u00e9 um velho amigo e, \u00e0 primeira vista, o N1QL do Couchbase Server lhes ser\u00e1 muito familiar. No entanto, o N1QL tem alguns truques adicionais na manga. O N1QL conhece o JSON nativo. Ou seja, o SQL for Document funciona no modelo de dados flex\u00edvel do Couchbase Server (ou seja, dados de documentos baseados em JSON) e retorna JSON para oferecer aos aplicativos representa\u00e7\u00f5es de fidelidade total dos objetos, tanto em seus aplicativos quanto no banco de dados. O N1QL vai al\u00e9m do suporte b\u00e1sico a tipos de dados com matriz nativa e tipos de subdocumentos com verbos correspondentes para manipul\u00e1-los facilmente na linguagem. Muitos recursos que voc\u00ea esperaria de uma implementa\u00e7\u00e3o SQL totalmente funcional tamb\u00e9m est\u00e3o presentes: JOINs, Subqueries e NEST\/UNNEST que eliminar\u00e3o muitas opera\u00e7\u00f5es que complicavam o c\u00f3digo do lado do cliente no passado. Em resumo, o N1QL simplificar\u00e1 muito o c\u00f3digo do seu aplicativo!<\/p>\n<h2><strong>Nova indexa\u00e7\u00e3o secund\u00e1ria global (GSI)<\/strong><\/h2>\n<p>O Couchbase Server 4.0 adiciona uma nova maneira exclusiva de criar \u00edndices que aceleram e dimensionam as consultas em um novo n\u00edvel. Com os novos \u00edndices secund\u00e1rios globais (GSI), voc\u00ea pode criar novos tipos de aplicativos que podem consultar big data com lat\u00eancias em tempo real que n\u00e3o eram poss\u00edveis antes.<\/p>\n<p>Os \u00edndices em todos os ambientes de gerenciamento de dados est\u00e3o em constante concorr\u00eancia com as opera\u00e7\u00f5es de dados principais (INSERT, UPDATE e DELETE). Com a nova tecnologia GSI da vers\u00e3o 4.0, \u00e9 poss\u00edvel criar \u00edndices que podem ser dimensionados e particionados de forma independente dos dados principais para minimizar a conten\u00e7\u00e3o de recursos entre a aquisi\u00e7\u00e3o de dados e a manuten\u00e7\u00e3o do \u00edndice.<\/p>\n<p>Como era de se esperar, o SQL for Document tamb\u00e9m pode aproveitar as exibi\u00e7\u00f5es incrementais do MapReduce, um m\u00e9todo avan\u00e7ado de acesso r\u00e1pido a documentos JSON que j\u00e1 est\u00e1 dispon\u00edvel h\u00e1 algum tempo no Couchbase Server.<\/p>\n<h2><\/h2>\n<h2><strong>Dimensionamento multidimensional<\/strong><\/h2>\n<p>O novo modelo MDS (Multi-Dimensional Scaling) revoluciona a lat\u00eancia e a taxa de transfer\u00eancia que voc\u00ea pode obter nos aplicativos mais exigentes.  Com o <a href=\"https:\/\/www.couchbase.com\/blog\/pt\/products\/big-data\/\">big data e NoSQL<\/a> Nos bancos de dados Couchbase, o modelo cl\u00e1ssico de escalabilidade tem sido o scale out homog\u00eaneo: dividir a carga de trabalho em partes iguais em um conjunto de m\u00e1quinas de commodity. \u00c9 assim que as vers\u00f5es anteriores do Couchbase Server funcionam, e voc\u00ea pode continuar a usar essa topologia simples no Couchbase Server 4.0 com MDS.<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"\/wp-content\/original-assets\/introducing-developer-preview-for-couchbase-server-4.0\/slide11.jpg\" \/><\/p>\n<p style=\"text-align: center\"><em>Figura: Dimensionamento homog\u00eaneo<\/em><\/p>\n<p>O que h\u00e1 de novo nesta vers\u00e3o \u00e9 a op\u00e7\u00e3o de usu\u00e1rios avan\u00e7ados com aplicativos sens\u00edveis \u00e0 lat\u00eancia adaptarem sua arquitetura de cluster e levarem o desempenho dos aplicativos a novos patamares. Com o Multi-Dimensional Scaling, voc\u00ea pode implementar servi\u00e7os separados para cargas de trabalho de dados, indexa\u00e7\u00e3o e consulta. Em cada \"zona\" que cont\u00e9m a carga de trabalho, voc\u00ea pode escolher o hardware de forma independente: o servi\u00e7o de dados pode ser dimensionado para fora, por exemplo, enquanto a indexa\u00e7\u00e3o e a consulta podem ser dimensionadas para cima por meio da implementa\u00e7\u00e3o em n\u00f3s maiores.<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"\/wp-content\/original-assets\/introducing-developer-preview-for-couchbase-server-4.0\/slide12.jpg\" \/><\/p>\n<p style=\"text-align: center\"><em>Figura: Escalonamento independente com escalonamento multidimensional<\/em><\/p>\n<p><strong>SDKs e conectividade com ODBC e JDBC<\/strong><\/p>\n<p>Os SDKs nativos do Couchbase Server integram-se ao N1QL e a todos os novos recursos que estamos disponibilizando. Basta fazer o download da vers\u00e3o mais recente do seu SDK favorito e voc\u00ea estar\u00e1 conectado! No entanto, voc\u00ea n\u00e3o precisa parar por a\u00ed... O SQL relacional tem uma longa hist\u00f3ria e \u00e9 predominante em muitas ferramentas existentes para gerenciamento de dados, gera\u00e7\u00e3o de relat\u00f3rios e visualiza\u00e7\u00e3o, do Tableau ao Microsoft Office ou ao SAP Business Objects. Se voc\u00ea quiser criar uma experi\u00eancia composta com ferramentas existentes sobre o Couchbase Server, a Simba Technologies tamb\u00e9m est\u00e1 enviando pr\u00e9vias para desenvolvedores para <a style=\"text-decoration: none\" href=\"https:\/\/simba.com\/couchbase\/couchbase-odbc-jdbc-connectivity-solutions-developer-previews-now-available\">Drivers ODBC e JDBC<\/a> para acesso de dados padr\u00e3o SQL-92 ao Couchbase Server 4.0.<\/p>\n<p><strong>Conformidade de seguran\u00e7a simplificada<\/strong><\/p>\n<p>A seguran\u00e7a \u00e9 uma das principais preocupa\u00e7\u00f5es e muitas empresas imp\u00f5em controles internos ou precisam estar em conformidade com regras e regulamentos externos. Com o Couchbase Server 4.0, voc\u00ea obt\u00e9m controles de seguran\u00e7a simplificados para estar em conformidade com os padr\u00f5es de seguran\u00e7a, como PCI, HIPAA, FISMA e outros. A vers\u00e3o 4.0 vem com integra\u00e7\u00e3o LDAP nativa para gerenciamento de contas de administrador e o novo recurso de auditoria permite rastrear as a\u00e7\u00f5es do administrador com grande n\u00edvel de detalhes. Tudo isso al\u00e9m dos nossos recursos de seguran\u00e7a existentes, como a criptografia de dados em repouso e em tr\u00e2nsito.<\/p>\n<p><strong>V\u00e1 mais fundo!<\/strong><\/p>\n<p>Acabamos de arranhar a superf\u00edcie do Couchbase Server 4.0 com os recursos mencionados acima, e h\u00e1 muitos outros... Nosso <a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/4.0\/introduction\/intro.html\">Guia de introdu\u00e7\u00e3o<\/a> o ajudar\u00e1 a se aprofundar.<\/p>\n<h2><strong>OK! Como fa\u00e7o para colocar minhas m\u00e3os na vers\u00e3o 4.0?<\/strong><\/h2>\n<p>Lembre-se disso antes de mergulhar de cabe\u00e7a: O Couchbase Server 4.0 ainda est\u00e1 em desenvolvimento ativo, o que significa que <strong><em>voc\u00ea\u00a0<\/em><\/strong>pode ter um grande impacto na vers\u00e3o final do produto. D\u00ea-nos um feedback sobre sua experi\u00eancia e n\u00f3s o ouviremos. Fornecer feedback \u00e9 simples! Voc\u00ea pode encontrar todas as maneiras de fazer com que sua voz seja ouvida aqui em nosso <a href=\"https:\/\/docs.couchbase.com\/4.0\/intro\/giving-feedback.html\">p\u00e1gina de feedback<\/a>.<\/p>\n<p>\u00c9 f\u00e1cil colocar as m\u00e3os na visualiza\u00e7\u00e3o para desenvolvedores.<\/p>\n<ul>\n<li>Para obter orienta\u00e7\u00e3o passo a passo, visite nosso <a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/4.0\/getting-started\/index.html\">Guia de introdu\u00e7\u00e3o<\/a> para o Couchbase Server 4.0 Developer Preview.<\/li>\n<li>Se voc\u00ea quiser ir direto ao ponto e fazer o download:\n<ul>\n<li>Fa\u00e7a o download da pr\u00e9via do desenvolvedor do Couchbase Server 4.0 em nosso\u00a0<a href=\"https:\/\/www.couchbase.com\/blog\/pt\/nosql-databases\/downloads\/#PreRelease\">downloads de pr\u00e9-lan\u00e7amento<\/a>\u00a0p\u00e1gina.<\/li>\n<li>Se voc\u00ea deseja desenvolver em Java, .Net, Node ou outras linguagens com SDKs nativos, fa\u00e7a o download da vers\u00e3o mais recente dos SDKs em <a href=\"https:\/\/www.couchbase.com\/blog\/pt\/nosql-databases\/downloads\/\">se\u00e7\u00e3o \"bibliotecas de clientes\" nos downloads<\/a> p\u00e1gina.<\/li>\n<li>Para obter conectividade SQL-92 com o Couchbase Server 4.0 Developer Preview com drivers Simba ODBC e JDBC e p\u00e1ginas de download, acesse <a href=\"https:\/\/simba.com\/couchbase\/couchbase-odbc-jdbc-connectivity-solutions-developer-previews-now-available\">Simba<\/a>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Visite nosso <a style=\"text-decoration: none\" href=\"https:\/\/www.couchbase.com\/blog\/pt\/coming-in-couchbase-server-4-0\/\">P\u00e1gina do Couchbase Server 4.0<\/a>\u00a0para obter mais detalhes sobre o que est\u00e1 por vir na vers\u00e3o 4.0.<\/p>","protected":false},"excerpt":{"rendered":"<p>We\u2019re excited to pull back the curtain on the developer preview of Couchbase Server 4.0. This early release comes with many great enhancements, including new query interface with N1QL (SQL+JSON), brand new indexing for low latency queries with Global Secondary [&hellip;]<\/p>","protected":false},"author":7,"featured_media":13873,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[1435],"ppma_author":[8978],"class_list":["post-1920","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-couchbase-server-4-0"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v26.1.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Introduction to the Couchbase Server 4.0 Developer Preview<\/title>\n<meta name=\"description\" content=\"Learn why Couchbase Server 4.0 is called as a massive punch for enterprises looking for the 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