May 2025
Intermediate to advanced
552 pages
16h 26m
Portuguese (Portugal, Brazil)
Content preview from Fundamentos de DevOps e entrega de software
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Capítulo 10. Como monitorizar os teus sistemas
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No Capítulo 9, tu aprendeste a armazenar, consultar, replicar e fazer backup dos teus dados. Esse capítulo concentrou-se principalmente nos dados sobre seus clientes, como perfis de usuário, compras e fotos. Este capítulo foca principalmente nos dados que dão visibilidade ao seu negócio, ou o que normalmente é chamado de monitoramento.
No Prefácio, ouviste falar dos problemas de entrega de software do LinkedIn. Também tivemos dificuldades com a monitorização. Coletamos métricas e logs, mas as ferramentas para entender esses dados eram inutilizáveis, por isso, muitas vezes, estávamos às cegas, e bugs e interrupções podiam passar despercebidos. Em 2010, um estagiário criou o inGraphs, uma interface de usuário para visualizar nossas métricas. Teve um impacto profundo na empresa, pois de repente podíamos detetar problemas mais cedo e compreender o que os utilizadores estavam a fazer. Revisámos ainda mais a monitorização como parte do Projeto Inversão e, em pouco tempo, o inGraphs estava nos ecrãs de todo o escritório. Como David Henke, o vice-presidente sénior de engenharia e operações do LinkedIn, gostava de dizer: se não consegues medir, não consegues resolver.
Então, o que deves medir? Os quatro itens seguintes são as ferramentas e técnicas de monitorização mais utilizadas:
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Registos
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Métricas
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Eventos
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Alertas ...
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