{"id":34088,"date":"2025-08-06T12:09:06","date_gmt":"2025-08-06T15:09:06","guid":{"rendered":"https:\/\/building.nu.com\/?p=34088"},"modified":"2025-08-06T12:09:52","modified_gmt":"2025-08-06T15:09:52","slug":"dominando-dados-em-streaming-em-tempo-real","status":"publish","type":"post","link":"https:\/\/building.nu.com\/pt-br\/dominando-dados-em-streaming-em-tempo-real\/","title":{"rendered":"Dominando dados em streaming em tempo real"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">No Nubank DS&amp;ML Meetup #97, os participantes tiveram a oportunidade de aprender mais sobre infraestrutura de dados de streaming. A palestra foi conduzida por Andr\u00e9 Midea, gerente de engenharia do Nubank.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Com uma trajet\u00f3ria de 15 anos, e evoluindo da engenharia de distributed systems para plataformas pioneiras de streaming, Andr\u00e9 \u00e9 apaixonado por trazer acessibilidade e praticidade para tecnologias complexas de streaming.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No Nubank, ele desempenhou um papel fundamental no dimensionamento de plataformas de dados e no desenvolvimento de arquiteturas inovadoras, como o Avalanche, que foi reconhecido como o produto interno mais inovador do Nubank em 2024.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Streaming vs. processamento em batch<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dados em streaming processam conjuntos de dados cont\u00ednuos e ilimitados, diferente do processamento em batch, que trabalha com conjuntos discretos e limitados. Imagine o streaming como se fosse o tr\u00e1fego cont\u00ednuo, imprevis\u00edvel e constante de uma rodovia, e compare-o ao batch, que \u00e9 programado e definido.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Enquanto o processamento em batch lida eficientemente com grandes volumes definidos e permite f\u00e1cil otimiza\u00e7\u00e3o, o streaming oferece capacidade imediata de processamento de dados, algo essencial para aplica\u00e7\u00f5es em tempo real. Streams representam sequ\u00eancias de eventos ao longo do tempo, enquanto tabelas s\u00e3o capturas est\u00e1ticas desses streams em momentos espec\u00edficos, mostrando que o processamento batch pode ser considerado um subconjunto do streaming.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Plataforma Avalanche: componentes e capacidades<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Avalanche \u00e9 a robusta plataforma de streaming do Nubank projetada para simplificar an\u00e1lises em tempo real. Ela aproveita duas tecnologias principais:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Flink:<\/strong> um mecanismo avan\u00e7ado especificamente criado para gerenciar e processar eficientemente dados cont\u00ednuos, garantindo baixa lat\u00eancia.<\/li>\n\n\n\n<li><strong>Pinot:<\/strong> um banco de dados anal\u00edtico em tempo real desenvolvido pelo LinkedIn, otimizado para OLAP (Processamento Anal\u00edtico Online) de alto desempenho. Pinot se destaca na ingest\u00e3o e an\u00e1lise de grandes volumes de dados em tempo real com m\u00ednima lat\u00eancia.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Avalanche integra essas tecnologias, possibilitando r\u00e1pido processamento, an\u00e1lise e entrega de dados cr\u00edticos para decis\u00f5es \u00e1geis e insights imediatos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Fundamentos t\u00e9cnicos: event time, watermarks, and windows<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O streaming eficaz depende de dominar conceitos t\u00e9cnicos-chave:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Event time vs. processing time:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Event time indica quando um evento ocorre na realidade.<\/li>\n\n\n\n<li>Processing time registra quando o evento \u00e9 processado pelo sistema.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Watermarks:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Indicadores que mostram o avan\u00e7o do tempo do evento, permitindo ao sistema saber quando h\u00e1 dados suficientes para prosseguir com c\u00e1lculos. Watermarks garantem resultados consistentes e precisos.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Windows:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Estruturas que dividem streams cont\u00ednuos em intervalos (por exemplo, segmentos de um minuto), facilitando c\u00e1lculos e an\u00e1lises organizadas e precisas. S\u00e3o essenciais para an\u00e1lises detalhadas e para unir m\u00faltiplos streams de dados.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Casos de uso pr\u00e1ticos<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O encontro examinou detalhadamente aplica\u00e7\u00f5es reais do streaming no Nubank:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Detec\u00e7\u00e3o de fraudes:<\/strong>\n<ul class=\"wp-block-list\">\n<li>An\u00e1lises em tempo real de transa\u00e7\u00f5es permitem r\u00e1pida identifica\u00e7\u00e3o e resposta a fraudes, com efic\u00e1cia significativamente superior \u00e0s abordagens batch.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Engenharia de features em temporeal:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Com Avalanche e Pinot, o Nubank transforma streams em features em tempo real para modelos de machine learning. As features s\u00e3o geradas dinamicamente por consultas, simplificando tarefas complexas e permitindo itera\u00e7\u00e3o e implanta\u00e7\u00e3o r\u00e1pidas.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Clickstream analytics:<\/strong>\n<ul class=\"wp-block-list\">\n<li>A mudan\u00e7a do processamento em batch para streaming resultou em melhoria substancial de performance, fornecendo insights imediatos sobre a experi\u00eancia do usu\u00e1rio e reduzindo drasticamente custos operacionais.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Superando desafios no streaming<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Apesar dos benef\u00edcios, a infraestrutura de streaming enfrenta desafios espec\u00edficos:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gerenciamento de estado:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Manter estado preciso em sistemas distribu\u00eddos \u00e9 complexo e exige estrat\u00e9gias sofisticadas e frameworks robustos.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Deploy sem downtime:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Garantir servi\u00e7os cont\u00ednuos durante atualiza\u00e7\u00f5es ou eventos de escalabilidade requer planejamento avan\u00e7ado e suporte robusto de infraestrutura.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Acessibilidade e ado\u00e7\u00e3o:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Tornar a tecnologia acess\u00edvel para usu\u00e1rios n\u00e3o t\u00e9cnicos exige melhorias constantes em interfaces e documenta\u00e7\u00e3o clara.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Inova\u00e7\u00f5es e avan\u00e7os tecnol\u00f3gicos<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Participantes aprenderam sobre recentes inova\u00e7\u00f5es transformadoras no streaming:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Arquiteturas unificadas de batch e streaming:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Ferramentas como Flink permitem a combina\u00e7\u00e3o dos dois tipos de processamento numa infraestrutura \u00fanica, otimizando o gerenciamento de dados, reduzindo custos e aumentando efici\u00eancia.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Estrat\u00e9gias avan\u00e7adas de Dataflow:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Abordagens modernas, como integra\u00e7\u00e3o cont\u00ednua de changelog, aumentam a responsividade e confiabilidade, eliminando depend\u00eancias complexas em jobs batch.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Arquitetura Lakehouse:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Sistemas Lakehouse integram streaming e batch em uma arquitetura unificada, melhorando a flexibilidade e simplificando a gest\u00e3o de dados.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O Nubank DS&amp;ML Meetup #97 proporcionou insights abrangentes sobre a infraestrutura de dados em streaming, abordando desde conceitos fundamentais at\u00e9 t\u00e9cnicas avan\u00e7adas e aplica\u00e7\u00f5es pr\u00e1ticas. A explora\u00e7\u00e3o detalhada de Avalanche e tecnologias relacionadas refor\u00e7a o compromisso do Nubank com a lideran\u00e7a tecnol\u00f3gica, impulsionando inova\u00e7\u00e3o e efici\u00eancia no setor banc\u00e1rio digital.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Acompanhe o blog Building Nubank para obter mais informa\u00e7\u00f5es sobre tecnologia e inova\u00e7\u00e3o, e confira nossas vagas de emprego! Vamos construir o Futuro Roxo juntos!<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/fT8zcWlUNcI?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=pt-BR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Saiba tudo sobre infraestrutura de streaming, conceitos-chave, usos no mundo real e inova\u00e7\u00f5es no Nubank&#8217;s DS&#038;ML Meetup #97<\/p>\n","protected":false},"author":178110103,"featured_media":33649,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[2503,2502],"tags":[2599,2541,2560,2540,2498],"class_list":["post-34088","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data-analytics","category-data-science-machine-learning-pt-br","tag-engineering-culture-pt-br","tag-inteligencia-artificial","tag-large-language-models-pt-br","tag-machine-learning-pt-br","tag-software-engineering-pt-br"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - 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