{"id":685,"date":"2026-01-20T00:08:17","date_gmt":"2026-01-20T08:08:17","guid":{"rendered":"https:\/\/www.couchbase.com\/\/data-replication\/"},"modified":"2026-08-03T04:04:31","modified_gmt":"2026-08-03T11:04:31","slug":"data-replication","status":"publish","type":"concepts","link":"https:\/\/www.couchbase.com\/pt\/resources\/concepts\/data-replication\/","title":{"rendered":"Replica\u00e7\u00e3o de dados"},"content":{"rendered":"<div class=\"wp-block-group alignfull wp-block-hero is-layout-constrained wp-container-core-group-is-layout-3838c6e4 wp-block-group-is-layout-constrained\" style=\"padding-top:var(--wp--preset--spacing--2-xl);padding-right:var(--wp--preset--spacing--lg);padding-bottom:var(--wp--preset--spacing--2-xl);padding-left:var(--wp--preset--spacing--lg)\">\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-0fd64a4d wp-block-columns-is-layout-flex\" style=\"padding-bottom:var(--wp--preset--spacing--xl)\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-container-core-column-is-layout-bdca1ed4 wp-block-column-is-layout-flow\" style=\"flex-basis:45%\">\n<h1 id=\"h-data-replication\" class=\"wp-block-heading has-heading-xl-font-size\">Replica\u00e7\u00e3o de dados<\/h1>\n\n\n\n<p class=\"has-large-font-size wp-block-paragraph\">A replica\u00e7\u00e3o de dados acelera o desempenho, permite que as organiza\u00e7\u00f5es acessem os dados mais rapidamente e melhora a resposta a desastres<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--md)\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.couchbase.com\/pt\/products\/capella\/\" title=\"Automatize a replica\u00e7\u00e3o com o Capella\" target=\"_self\">Automatize a replica\u00e7\u00e3o com o Capella<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.couchbase.com\/pt\/products\/xdcr\/\" title=\"Saiba mais\" target=\"_self\">Saiba mais<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center hero__media-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:55%\">\n<figure class=\"wp-block-image aligncenter size-full has-custom-border size-large hero__image\"><img decoding=\"async\" src=\"https:\/\/www.couchbase.com\/wp-content\/uploads\/sites\/6\/2026\/07\/full-orange-star-4.png\" alt=\"\" class=\"wp-image-576\" style=\"border-top-left-radius:var(--wp--custom--border-radius--card);border-top-right-radius:var(--wp--custom--border-radius--card);border-bottom-left-radius:var(--wp--custom--border-radius--card);border-bottom-right-radius:var(--wp--custom--border-radius--card)\"\/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-29fd1c38 wp-block-group-is-layout-constrained\" style=\"margin-bottom:var(--wp--preset--spacing--lg)\">\n<h2 id=\"h-what-is-data-replication\" class=\"wp-block-heading\">O que \u00e9 replica\u00e7\u00e3o de dados?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Esta p\u00e1gina abordar\u00e1 o seguinte para ajud\u00e1-lo a entender melhor a replica\u00e7\u00e3o de dados:<\/p>\n\n\n\n<ul style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\" class=\"wp-block-list\">\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\"><a href=\"#terms\" class=\"scrollToHash\">Termos de replica\u00e7\u00e3o de dados<\/a><\/li>\n\n\n\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\"><a href=\"#benefits\" class=\"scrollToHash\">Benef\u00edcios da replica\u00e7\u00e3o de dados<\/a><\/li>\n\n\n\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\"><a href=\"#challenges\" class=\"scrollToHash\">Desafios da replica\u00e7\u00e3o de dados<\/a><\/li>\n\n\n\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\"><a href=\"#replication\" class=\"scrollToHash\">Replica\u00e7\u00e3o de dados em RDBMS<\/a><\/li>\n\n\n\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\"><a href=\"#conclusion\" class=\"scrollToHash\">Conclus\u00e3o<br>\n<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A replica\u00e7\u00e3o de dados \u00e9 o processo de copiar um ou mais registros de um lugar para outro. Esses locais podem ser muito semelhantes (como a c\u00f3pia de arquivos dentro do mesmo banco de dados) ou mais distintos (como a c\u00f3pia de dados de um banco de dados para outro). O termo replica\u00e7\u00e3o de dados normalmente implica manter os dados atualizados da origem ao destino, mas a velocidade e o n\u00edvel de automa\u00e7\u00e3o da replica\u00e7\u00e3o podem afetar a consist\u00eancia dos dados.<\/p>\n\n\n\n<h2 id=\"terms\" class=\"wp-block-heading\">Termos de replica\u00e7\u00e3o de dados<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aqui est\u00e1 uma lista de termos comuns para ajud\u00e1-lo a entender a replica\u00e7\u00e3o de dados:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Unidirecional versus bidirecional:<\/strong> Uma rela\u00e7\u00e3o unidirecional significa que os dados fluem apenas de uma origem para um destino. Uma rela\u00e7\u00e3o bidirecional significa que os dados fluem em ambos os sentidos. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ativo-ativo versus ativo-passivo:<\/strong> Um <a href=\"https:\/\/www.couchbase.com\/pt\/products\/xdcr\/\">ativo-ativo<\/a> O cluster ativo-passivo distribui uniformemente as cargas entre todos os n\u00f3s em todos os momentos. Por outro lado, um cluster ativo-passivo tem um n\u00f3 de backup que assume o controle somente se o n\u00f3 ativo estiver sobrecarregado.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u00edncrono versus ass\u00edncrono:<\/strong> A replica\u00e7\u00e3o s\u00edncrona grava dados simultaneamente no n\u00f3 prim\u00e1rio e na r\u00e9plica. A replica\u00e7\u00e3o ass\u00edncrona grava dados primeiro no n\u00f3 prim\u00e1rio e depois os copia para a r\u00e9plica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Processamento em lote versus processamento em tempo real:<\/strong> O processamento em lote coleta e processa dados em grupos ou lotes em intervalos programados e, normalmente, \u00e9 adequado para lidar com grandes volumes de dados. O processamento em tempo real trata os dados \u00e0 medida que s\u00e3o gerados ou recebidos, o que o torna adequado para aplicativos sens\u00edveis ao tempo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Incremental versus completo:<\/strong> A replica\u00e7\u00e3o incremental de dados significa que voc\u00ea replica apenas os elementos atualizados de um registro. Replica\u00e7\u00e3o completa de dados significa que voc\u00ea replica o registro inteiro quando seus elementos s\u00e3o alterados.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Filtrado:<\/strong> Os dados de uma fonte podem ser filtrados para que apenas um subconjunto ou uma sele\u00e7\u00e3o espec\u00edfica dos dados seja replicada em um destino.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Transformado:<\/strong> A transforma\u00e7\u00e3o de dados \u00e9 o processo de convers\u00e3o de dados de um formato ou estrutura para outro, a fim de coloc\u00e1-los no formato e na estrutura corretos para an\u00e1lise, gera\u00e7\u00e3o de relat\u00f3rios ou armazenamento em seu destino.<\/p>\n\n\n\n<h2 id=\"benefits\" class=\"wp-block-heading\">Benef\u00edcios da replica\u00e7\u00e3o de dados<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A replica\u00e7\u00e3o de dados tem <a href=\"https:\/\/www.couchbase.com\/pt\/blog\/data-replication-advantages\/\">muitos usos e benef\u00edcios<\/a>. Isso inclui:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Alta disponibilidade (HA):<\/strong> A manuten\u00e7\u00e3o de c\u00f3pias atualizadas de dados em v\u00e1rios locais evita a perda de dados em caso de falhas. Normalmente, a replica\u00e7\u00e3o em tempo real \u00e9 unidirecional e ocorre entre uma origem e uma ou mais r\u00e9plicas. Se a origem ficar indispon\u00edvel, uma das r\u00e9plicas assume o controle, geralmente de forma autom\u00e1tica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Recupera\u00e7\u00e3o de desastres (DR):<\/strong> Intimamente relacionada \u00e0 HA, a recupera\u00e7\u00e3o de desastres garante que as c\u00f3pias de seus dados estejam dispon\u00edveis em caso de desastre.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Dimensionamento da taxa de transfer\u00eancia:<\/strong> Esse processo usa v\u00e1rias c\u00f3pias de dados para aumentar a capacidade de um sistema de lidar com solicita\u00e7\u00f5es. Normalmente, \u00e9 usado para tr\u00e1fego de leitura e menos comumente para tr\u00e1fego de grava\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Acesso secund\u00e1rio:<\/strong> Tamb\u00e9m conhecido como indexa\u00e7\u00e3o, isso envolve replicar os dados para outro sistema para acess\u00e1-los de forma diferente. O segundo sistema pode estar dentro do mesmo banco de dados (no caso da indexa\u00e7\u00e3o) ou pode ser externo. Dependendo das tecnologias em uso, um intermedi\u00e1rio como o <a href=\"https:\/\/docs.couchbase.com\/kafka-connector\/current\/index.html\">Kafka<\/a> \u00e0s vezes \u00e9 necess\u00e1rio para transferir os dados entre uma fonte e um sistema externo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Observa\u00e7\u00e3o: exclu\u00edmos intencionalmente o \"backup\" como um benef\u00edcio da replica\u00e7\u00e3o de dados porque voc\u00ea n\u00e3o atualiza um backup com altera\u00e7\u00f5es. Um ponto importante a ser entendido \u00e9 que a replica\u00e7\u00e3o de dados \u00e9 suscet\u00edvel \u00e0 corrup\u00e7\u00e3o ou exclus\u00e3o de dados no n\u00edvel do aplicativo, enquanto os backups n\u00e3o s\u00e3o. Os backups n\u00e3o devem ser considerados um substituto para HA ou DR, nem HA ou DR devem substituir os backups.<\/em><\/p>\n\n\n\n<h2 id=\"challenges\" class=\"wp-block-heading\">Desafios da replica\u00e7\u00e3o de dados<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Com qualquer estrat\u00e9gia de replica\u00e7\u00e3o de dados, voc\u00ea ser\u00e1 for\u00e7ado a fazer concess\u00f5es entre:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">Velocidade<\/li>\n\n\n\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">Consist\u00eancia, disponibilidade e toler\u00e2ncia \u00e0 parti\u00e7\u00e3o (o <a href=\"https:\/\/en.wikipedia.org\/wiki\/CAP_theorem\">Teorema CAP<\/a>)<\/li>\n\n\n\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">Uso e custo de recursos (RAM, disco, CPU, rede)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Por exemplo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">A manuten\u00e7\u00e3o de v\u00e1rias r\u00e9plicas aumenta a seguran\u00e7a de seus dados em caso de interrup\u00e7\u00f5es, mas resulta em maior uso e custo de recursos. O mesmo se aplica ao dimensionamento de leituras com v\u00e1rias r\u00e9plicas.<\/li>\n\n\n\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">A replica\u00e7\u00e3o s\u00edncrona pode fazer com que as grava\u00e7\u00f5es de origem sejam mais lentas (ou falhem completamente). No entanto, a replica\u00e7\u00e3o ass\u00edncrona pode resultar em maior uso de recursos se voc\u00ea gravar registros mais rapidamente do que pode replic\u00e1-los. A replica\u00e7\u00e3o ass\u00edncrona tamb\u00e9m apresenta a possibilidade de discrep\u00e2ncias entre os dados de origem e de destino, independentemente da rapidez ou da confiabilidade da tecnologia de replica\u00e7\u00e3o.<\/li>\n\n\n\n<li style=\"margin-top:0;margin-bottom:0;padding-top:0;padding-bottom:0\">A replica\u00e7\u00e3o incremental, filtrada e transformada pode resultar em menor uso de recursos de rede, mas esses tipos de replica\u00e7\u00e3o tendem a funcionar mais lentamente e exigem uma CPU de maior desempenho para a origem.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">As pr\u00e1ticas recomendadas para replica\u00e7\u00e3o de dados variam muito, dependendo dos requisitos do seu caso de uso e dos recursos das tecnologias que voc\u00ea est\u00e1 usando.<\/p>\n\n\n\n<h2 id=\"replication\" class=\"wp-block-heading\">Replica\u00e7\u00e3o de dados em RDBMS<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cada tecnologia de banco de dados oferece diferentes recursos e op\u00e7\u00f5es para replica\u00e7\u00e3o de dados. Historicamente, os sistemas de gerenciamento de bancos de dados relacionais (RDBMS) replicam dados de uma inst\u00e2ncia de banco de dados para outra por meio do envio de logs, o que envolve o envio de dados de uma inst\u00e2ncia de banco de dados para outra depois de serem gravados no disco. Os bancos de dados mais novos, como o <a href=\"https:\/\/www.couchbase.com\/pt\/products\/capella\/\">Couchbase<\/a> banco de dados NoSQL, replica dados diretamente da RAM, aumentando significativamente a velocidade e a confiabilidade.<\/p>\n\n\n\n<h2 id=\"conclusion\" class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A replica\u00e7\u00e3o de dados \u00e9 um conceito central que sustenta muitos recursos diferentes de banco de dados, e a replica\u00e7\u00e3o vem em muitas formas diferentes, com desafios e vantagens diferentes. A melhor op\u00e7\u00e3o de replica\u00e7\u00e3o de dados para a sua organiza\u00e7\u00e3o depende do que voc\u00ea precisa alcan\u00e7ar e das tecnologias que est\u00e1 usando.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use esses recursos para saber mais sobre a replica\u00e7\u00e3o de dados e os recursos de replica\u00e7\u00e3o de dados do Couchbase:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.couchbase.com\/pt\/blog\/cloud-data-replication\/\">Guia para replica\u00e7\u00e3o de dados na nuvem<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.couchbase.com\/pt\/blog\/data-replication-advantages\/\">Replica\u00e7\u00e3o de dados: Vantagens e desvantagens<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.couchbase.com\/pt\/blog\/couchbase-replication-and-sync\/\">Replica\u00e7\u00e3o e sincroniza\u00e7\u00e3o de dados no Couchbase<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/docs.couchbase.com\/cloud\/clusters\/xdcr\/xdcr.html\">Replica\u00e7\u00e3o entre centros de dados (Couchbase Capella\u2122)<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/docs.couchbase.com\/server\/current\/learn\/clusters-and-availability\/xdcr-overview.html\">Replica\u00e7\u00e3o entre centros de dados (Couchbase Server)<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.couchbase.com\/pt\/products\/capella\/app-services\/\">Servi\u00e7os de Aplicativos Capella (BaaS)<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Confira nosso <a href=\"https:\/\/www.couchbase.com\/pt\/resources\/concepts\/\">hub de banco de dados<\/a> para saber mais sobre outros conceitos-chave do gerenciamento de dados.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull wp-custom-prefooter has-peach-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group 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This page will cover the following to help you better understand data replication: Data replication is the process of copying one or more records from one place to another. These places could be very [&hellip;]<\/p>\n","protected":false},"author":73510,"featured_media":0,"menu_order":0,"template":"page-no-prefooter","meta":{"_acf_changed":false,"inline_featured_image":false,"_acf":"","footnotes":""},"couchbase_category":[216,30,18,32,19,26],"class_list":["post-685","concepts","type-concepts","status-publish","hentry","couchbase_category-cross-datacenter-replication-xdcr-product-key-feature","couchbase_category-developer-back-end","couchbase_category-performance","couchbase_category-performance-use-case","couchbase_category-technology-software-saas","couchbase_category-topic"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Data Replication | Concepts | Couchbase<\/title>\n<meta name=\"description\" content=\"This overview explains what data replication is, discusses data replication types, and compares data replication in RDBMS vs. 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