Microservice Communication Done Right

Transcript

2. MICROSERVICE COMMUNICATION DONE RIGHT JAVA MEETUP - VIENNA DAMJAN GJUROVSKI 4 July 2024
3. 3 HI • Damjan Gjurovski • Software engineer (java), Software architect (microservices), Cloud architect (GCP) • Cover the how, the what, the where and the why • Let’s talk about practical steps on improving microservice systems
4. MICROSERVICE COMMUNICATION DONE RIGHT 1. How communication patterns evolved into microservices 2.What makes a good microservice architecture 3.Where it all went wrong 4.Why you should not lose all hope
5. HOW COMMUNICATION PATTERNS EVOLVED INTO MICROSERVICES 1
6. 6 THE MYTHICAL MAN-MONTH
7. 7 THE LEAN STARTUP
8. WHAT MAKES A GOOD MICROSERVICE ARCHITECTURE 2
9. 9 SYNCHRONOUS COMMUNICATION
10. 10 SERVICE DISCOVERY
11. 11 LOAD BALANCING
12. 12 CIRCUIT BREAKER
13. 13 ASYNCHRONOUS COMMUNICATION
14. WHERE IT ALL WENT WRONG 3
15. 15 TOO MUCH OF A GOOD THING • Services are under the control of a single team • Services are usually deployed together • The effort around deployment and orchestration overtakes the effort of developing the services
16. 16 WE ARE JUST AS IMPORTANT AS THEY ARE • Every team gets the same number of services • Teams are very protective of their services • The services don’t seem to belong together by any other metric aside from belonging to the same team
17. 17 LOOKS GOOD FROM UP HERE • Architecture was decided far away and long ago • Change is difficult and discouraged • Might look good on paper but doesn’t survive contact with reality
18. WHY YOU SHOULD NOT LOSE ALL HOPE 4
19. 19 TOO MUCH OF A GOOD THING • Stabilize external interfaces • Consolidate • Find the fine line and walk it • Automate tasks • Do painful things more often
20. 20 WE ARE JUST AS IMPORTANT AS THEY ARE • Stabilize external interfaces • Use contract testing to catch changes early on • Communicate but don’t blame • Defensive programming, built-in resiliance
21. 21 LOOKS GOOD FROM UP HERE • Stabilize interfaces • Communicate with colleagues • Observability
22. 22 WANT TO KEEP THE DISCUSSION GOING? MESSAGE ME ON LINKEDIN!