Du réactif au service du pneu connecté

Transcript

1. Du réactif au service du
   pneu connecté
   Fabien Pomerol et Julien Ponge
   Devoxx France 2019
   

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2. Fabien Pomerol Julien Ponge
   @jponge
   @FabienPomerol
   

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7. SENSORS
   

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8. ON-BOARD
   ROUTER
   MANUAL DEVICES +
   SMARTPHONE
   

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

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10. Services Use case?
    Tyre end of life prediction
    Security
    (low pressure detection)
    Fleet Management
    

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11. 23 Million
    Assets
    > 1 Billion
    Device Events
    > 500
    Req / sec
    Low resources
    footprint
    

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

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13. Split Monolith into Microservices
    Rewrite using
    &
    

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14. Ingestion
    Service
    Micro Services !
    

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15. Ingestion
    Service
    Assets
    Service
    Micro Services !
    

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16. Ingestion
    Service
    Assets
    Service
    Tyre
    Maintenance
    Micro Services !
    

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

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18. Insights
    Service
    Ingestion
    Service
    Assets
    Service
    Tyre
    Maintenance
    Edge
    Service
    Micro Services !
    

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19. Ingestion
    Service
    Assets
    Service
    Alerting
    Tyre
    Maintenance
    Edge
    Service
    Insights
    Service
    Micro Services !
    

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

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21. Vert.x = ?
    

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

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

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

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25. Reactive Systems
    Elasticity
    Resiliency
    Responsiveness
    

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26. Reactive
    Asynchronous
    Event-driven Toolkit
    Fast
    Polyglot
    Versatile
    

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

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28. { demo }
    

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29. Service Aggregation
    Web / Mobile
    Applications
    Edge
    Service
    Assets
    Service
    Insights
    Service
    http://
    http://
    http://
    Composition
    

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

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31. { demo }
    

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32. Event Driven Microservices
    Ingestion
    Service
    Insights
    Service
    Alerting
    Service
    Events splits
    by topic
    Consume
    Pressure
    Events
    Publish
    Computed
    Insights
    Consume
    Insights
    

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33. { demo }
    

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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!
    

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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
    

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

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39. 40% off (all Manning)
    ctwdevoxxfr19
    

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40. Thank you!
    Fabien Pomerol et Julien Ponge
    Devoxx France 2019 Icons made by Freepik, Smashicons
    from www.flaticon.com
    

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