{"id":8,"date":"2026-04-05T13:35:39","date_gmt":"2026-04-05T13:35:39","guid":{"rendered":"https:\/\/lasstecsolutions.com\/debezium-cdc-offsets-conectores\/"},"modified":"2026-04-05T13:35:39","modified_gmt":"2026-04-05T13:35:39","slug":"debezium-cdc-offsets-conectores","status":"publish","type":"post","link":"https:\/\/lasstecsolutions.com\/?p=8","title":{"rendered":"Debezium e CDC: quando conectores, offsets e schemas derrubam a r\u00e9plica l\u00f3gica"},"content":{"rendered":"<p>Debezium \u00e9 a porta de entrada para muitos pipelines event-driven, mas a manuten\u00e7\u00e3o do CDC n\u00e3o termina no \u201cconector verde\u201d no Kafka Connect. Em produ\u00e7\u00e3o, equipes enfrentam falhas silenciosas, atraso crescente na captura e recupera\u00e7\u00f5es longas ap\u00f3s incidentes.<\/p>\n<h2>Cen\u00e1rios reais<\/h2>\n<p><strong>Snapshot inicial<\/strong> em tabelas enormes sem estrat\u00e9gia de chunking ou sem alinhamento com janelas de manuten\u00e7\u00e3o pode travar o banco de origem. <strong>Offsets corrompidos ou apagados<\/strong> ap\u00f3s migra\u00e7\u00e3o de cluster Connect exigem decis\u00e3o arriscada: re-snapshot ou reconstru\u00e7\u00e3o manual \u2014 sempre com impacto em neg\u00f3cio.<\/p>\n<p><strong>Schema Registry<\/strong> com compatibilidade <code>BACKWARD<\/code> vs <code>FORWARD<\/code> mal definida quebra consumidores downstream no primeiro <code>ALTER<\/code> agressivo. Em Oracle\/SQL Server, particularidades de redo\/archive e permiss\u00f5es m\u00ednimas geram horas de troubleshooting que n\u00e3o aparecem no guia de in\u00edcio r\u00e1pido.<\/p>\n<h2>Linha de defesa<\/h2>\n<p>Documentar vers\u00e3o exata do conector e do banco, testar mudan\u00e7as de schema em pipeline de homologa\u00e7\u00e3o, monitorar lag de CDC separadamente do lag de consumo, e ter runbook para \u201cconector vermelho\u201d com checklist de WAL\/binlog, conectividade e disco. A LASS apoia times a amarrar isso a SLAs e a governan\u00e7a de dados.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Snapshot infinito, conector preso e mudan\u00e7a de schema sem compatibilidade: problemas comuns ao manter Debezium em ambientes h\u00edbridos.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[7,6,2,9,8],"class_list":["post-8","post","type-post","status-publish","format-standard","hentry","category-sem-categoria","tag-cdc","tag-debezium","tag-kafka","tag-mysql","tag-postgresql"],"_links":{"self":[{"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=\/wp\/v2\/posts\/8","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8"}],"version-history":[{"count":0,"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=\/wp\/v2\/posts\/8\/revisions"}],"wp:attachment":[{"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}