Du réactif au service du pneu connecté

Transcript

1. Du réactif au service du pneu connecté Fabien Pomerol et

   Julien Ponge Devoxx France 2019

2. Fabien Pomerol Julien Ponge @jponge @FabienPomerol

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7. SENSORS

8. ON-BOARD ROUTER MANUAL DEVICES + SMARTPHONE

9. Building an API to : Collect devices data Process it

   Generate Insight

10. Services Use case? Tyre end of life prediction Security (low

    pressure detection) Fleet Management

11. 23 Million Assets > 1 Billion Device Events > 500

    Req / sec Low resources footprint

12. Original Architecture Monolithic REST API Event Producer Web / Mobile

    Applications

13. Split Monolith into Microservices Rewrite using &

14. Ingestion Service Micro Services !

15. Ingestion Service Assets Service Micro Services !

16. Ingestion Service Assets Service Tyre Maintenance Micro Services !

17. Tyre Maintenance Edge Service Ingestion Service Assets Service Micro Services

    !

18. Insights Service Ingestion Service Assets Service Tyre Maintenance Edge Service

    Micro Services !

19. Ingestion Service Assets Service Alerting Tyre Maintenance Edge Service Insights

    Service Micro Services !

20. Micro Services ! Ingestion Service Assets Service Tyre Maintenance Edge

    Service Alerting Insights Service

21. Vert.x = ?

22. Blocking I/O don’t scale! Thread request #1 Thread request #2

23. Resources are scarce! “Cloud native” Virtual machines Containers

24. Event-loop thread Async I/O do scale! Async events

25. Reactive Systems Elasticity Resiliency Responsiveness

26. Reactive Asynchronous Event-driven Toolkit Fast Polyglot Versatile

27. Ingestion Flow Ingestion Service Event Producer TCP Socket HTTP:// MQTT

28. { demo }

29. Service Aggregation Web / Mobile Applications Edge Service Assets Service

    Insights Service http:// http:// http:// Composition

30. Callback Future CompletionStage Quasar RxJava / RxKotlin Kotlin coroutines Event

31. { demo }

32. Event Driven Microservices Ingestion Service Insights Service Alerting Service Events

    splits by topic Consume Pressure Events Publish Computed Insights Consume Insights

33. { demo }

34. Embracing Async Programming was not so easy for the team

    Vert.x is unopinionated: easy to be tempted to built Framework / Cathedral Vert.x the hard way!

35. Keep the Vert.x EventBus usage inside microservices No durability No

    back pressure
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37. Data Synchronisation Distributed Locks Exactly Once Idempotence Distributed Cache Tracing

    A NEW WORLD OF PROBLEMS Data Denormalization Concurrency Control

38. You can’t survive without monitoring and tracing !

39. 40% off (all Manning) ctwdevoxxfr19

40. Thank you! Fabien Pomerol et Julien Ponge Devoxx France 2019

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