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Pattern: Log aggregation


You have applied the Microservice architecture pattern. The application consists of multiple services and service instances that are running on multiple machines. Requests often span multiple service instances.

Each service instance generates writes information about what it is doing to a log file in a standardized format. The log file contains errors, warnings, information and debug messages.


How to understand the behavior of an application and troubleshoot problems?


  • Any solution should have minimal runtime overhead


Use a centralized logging service that aggregates logs from each service instance. The users can search and analyze the logs. They can configure alerts that are triggered when certain messages appear in the logs.


Resulting Context

This pattern has the following issues:

  • handling a large volume of logs requires substantial infrastructure

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