April 2025
Intermediate to advanced
488 pages
15h 37m
Portuguese (Portugal, Brazil)
Content preview from Kafka: O Guia Definitivo, 2ª Edição
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Capítulo 6. Aspectos internos do Kafka
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Não é estritamente necessário entender a parte interna do Kafka para executar o Kafka em produção ou escrever aplicativos que o utilizam. No entanto, saber como o Kafka funciona fornece contexto ao solucionar problemas ou tentar entender por que o Kafka se comporta da maneira que se comporta. Como cobrir todos os detalhes de implementação e decisões de design está além do escopo deste livro, neste capítulo nos concentramos em alguns tópicos que são especialmente relevantes para os profissionais do Kafka:
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Controlador Kafka
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Como funciona a replicação do Kafka
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Como é que o Kafka trata os pedidos dos produtores e dos consumidores
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Como o Kafka lida com o armazenamento, como o formato de ficheiro e os índices
Compreender estes tópicos em profundidade será especialmente útil quando afinares o Kafka - compreender os mecanismos que os botões de afinação controlam é um grande passo para os usares com uma intenção precisa, em vez de os manipulares aleatoriamente.
Membro do cluster
O Kafka utiliza o Apache ZooKeeper para manter a lista de corretores que são atualmente membros de um cluster. Cada broker tem um identificador único que é definido no ficheiro de configuração do broker ou gerado automaticamente. Sempre que um processo de broker é iniciado, regista-se com o seu ID no ZooKeeper, criando um nó efémero. Os corretores ...
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