About Microservices.io

Microservices.io is brought to you by Chris Richardson. Experienced software architect, author of POJOs in Action and the creator of the original CloudFoundry.com. His latest startup is eventuate.io, a microservices application platform.

Learn more about microservices

Chris offers a comprehensive set of resources for learning about microservices including articles, an O'Reilly training video, and example code. Learn more

Microservices consulting and training

Chris offers a comprehensive consulting services, workshops and hands on training classes to help you use microservices effectively. Get advice

Example microservices applications

Want to see an example? Check out Chris Richardson's example applications. See code

Get the book: Microservice patterns

Signup for the newsletter

A new microservices application platform that solves distributed data management problems.

Join the microservices google group

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

Copyright © 2017 Chris Richardson • All rights reserved • Supported by Kong.