Microservice Architecture
Supported by KongPattern: Log aggregation
Context
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.
Problem
How to understand the behavior of an application and troubleshoot problems?
Forces
- Any solution should have minimal runtime overhead
Solution
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.
Examples
Resulting Context
This pattern has the following issues:
- handling a large volume of logs requires substantial infrastructure
Related patterns
- Distributed tracing - include the external request id in each log message
- Exception tracking - as well as logging exceptions, report them to an exception tracking service
About Microservices.io
Microservices.io is brought to you by Chris Richardson. Experienced software architect, author of POJOs in Action, the creator of the original CloudFoundry.com, and the author of Microservices patterns.
Chris helps clients around the world adopt the microservice architecture through consulting engagements, and training classes and workshops.
Microservices workshop at Jfokus, Stockholm
LEARN about microservices
Chris offers numerous resources for learning the microservice architecture.
Training classes
Chris teaches comprehensive workshops and training classes for executives, architectures and developers to help your organization use microservices effectively.
Avoid the pitfalls of adopting microservices and learn essential topics, such as service decomposition and design and how to refactor a monolith to microservices.
Get the book: Microservices Patterns
Read Chris Richardson's book:
Example microservices applications
Want to see an example? Check out Chris Richardson's example applications. See code
BUILD microservices
Consulting services
Engage Chris to create a microservices adoption roadmap and help you define your microservice architecture,
The Eventuate platform
Use the Eventuate.io platform to tackle distributed data management challenges in your microservices architecture.
Eventuate is Chris's latest startup. It makes it easy to use the Saga pattern to manage transactions and the CQRS pattern to implement queries.
ASSESS your architecture
Consulting services
Engage Chris to conduct an architectural assessment.
Self assessment
Alternatively, conduct a self-assessment using the Microservices Assessment Platform.
Join the microservices google group
The patterns
Application architecture patterns
Decomposition
- Decompose by business capability
- Decompose by subdomain
- Self-contained Servicenew
- Service per teamnew
Data management
Transactional messaging
Testing
Deployment patterns
- Multiple service instances per host
- Service instance per host
- Service instance per VM
- Service instance per Container
- Serverless deployment
- Service deployment platform
Cross cutting concerns
Communication style
External API
Service discovery
- Client-side discovery
- Server-side discovery
- Service registry
- Self registration
- 3rd party registration
Reliability
Security
Observability
- Log aggregation
- Application metrics
- Audit logging
- Distributed tracing
- Exception tracking
- Health check API
- Log deployments and changes
UI patterns