May 2025
Intermediate to advanced
62 pages
1h 19m
Portuguese (Portugal, Brazil)
Content preview from Observabilidade de código aberto
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Capítulo 3. Camadas principais de uma pilha desagregada
Este trabalho foi traduzido com recurso a IA. Agradecemos o teu feedback e comentários: translation-feedback@oreilly.com
Vamos analisar mais detalhadamente cada camada do nosso modelo, começando pelos agentes incorporados e pelos métodos de recolha de dados.
Instrumentação, agentes e recolha de dados
A instrumentação é o meio intrínseco através do qual o software pode gerar telemetria a partir dos seus componentes em tempo de execução. Esta telemetria é recolhida de diferentes componentes através de agentes e depois é enviada para colectores de dados para agregação e posterior transmissão a sistemas analíticos.
O registo é uma funcionalidade básica, quase universal, implementada em todas as linguagens de programação, aplicações e sistemas. Existem registos em todo o lado nos sistemas informáticos, rastreando tudo, desde a atividade do utilizador final até ao nível do hardware.
Mesmo agora, muitos registos são armazenados localmente, acedidos apenas quando é necessária a análise da atividade ou a resolução de problemas. Eventualmente, surgiu a ideia com tecnologias como a Splunk (2003) de enviar todos os registos para uma localização central para análise (Braithwaite 2023). Mesmo assim, era tradicionalmente suficiente que a recolha de registos fosse implementada em lote - agrupandoe enviando um ficheiro de registo diário, por exemplo.
Estas foram originalmente implementadas como simples topologias hub-and-spoke, com agentes ...
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