Microservice Architecture 101

Microservice Architecture 101

Kochih [email protected]

AgendaIssues with monolithic approach

Benefits of microservice architectureThings to watch for

Few years back

Biz PlanStep 1. Develop a website

Step 2. ?Step 3. PROFIT

Monolithic Grails app

Everything works fine. Until...

Changes in one module breaks other modules

Cannot scale up only part of the application

High risk adopting new technologies

Test, build and deploy jobs take forever

Hard to establish ownership and autonomous teams

Introducing microservice

Benefits

Cleaner boundry between services

Can scale up services independently

Services can be implemented with different tech stack

Smaller code base, faster to build and deploy

Flexible release schedule

Enable autonomous teams

No silver bullet

Things to watch for

Ops overhead (config, deploy, monitor, logging, etc.)

Transaction management

Fault tolerant

Testing

ReferenceMicroservices

Microservices - Not a free lunch!Adopting Microservices at Netflix: Lessons for

Architectural Design

Questions?