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4 years building services at peerTransfer

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Avatar for Felipe Talavera Felipe Talavera
October 17, 2014
Programming
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4 years building services at peerTransfer

Avatar for Felipe Talavera

Felipe Talavera

October 17, 2014
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Transcript

  1. 4 years building services Felipe Talavera

  2. A.K.A. Services vs Monoliths

  3. "Microservices" - yet another new term on the crowded streets

    of software architecture. http://martinfowler.com/articles/microservices.html -Martin Fowler
  4. None

  5. 1B$ process +500 schools almost 4 years

  6. 0 sinatra 1 rails 0 daemons 0 libraries 1 server

    November 2010!
  7. None

  8. 0 sinatra 2 rails 1 daemons 0 libraries 2 servers

    January 2011!

  9. HTTP REST API’s! ! Async process with a message broker

  10. None

  11. App per git repo! ! Apps are deployed separately !

    Infra as code

  12. Issues

  13. Features involving multiple apps ! One rails app failure affect

    the other ! Complex monitoring/acceptance needed !

  14. dependency resolution ! version tagging and deployment! ! handling performance

    degradation Manual

  15. ! Error Handling cascading, trace, storm, retry

  16. Infra on AWS June 2012!

  17. http://martinfowler.com/bliki/MicroservicePrerequisites.html Rapid provisioning Basic Monitoring Rapid application deployment

  18. 4 sinatra 4 rails 4 daemons 3 libraries 6 servers

    June 2012!
  19. None
  20. None
  21. None

  22. 10 sinatra 4 rails 8 daemons 7 libraries 21 servers

    October 2014!

  23. teams around services

  24. Accidental complexities

  25. API consumers Auto generated consumer, ex: ActiveResource ! Cross app

    testing, consumer mock mode ! Recording traffic, VCR approach

  26. A/B testing across apps ! Feature flagging

  27. None

  28. 40 sinatra 3 rails 15 daemons 20 libraries 40 servers

    July 2016!

  29. ! Docker containers ! Consul ! Etcd ! Terraform Our

    next steps:!

  30. Modern alternatives !

  31. ! Hystrix/RxJava Latency and Fault Tolerance for Distributed Systems Java

    lib runs in JVM languages, scala, clojure, etc… from netflix http://blog.josephwilk.net/clojure/building-clojure-services-at-scale.html

  32. ! Finagle Pipes-and-Filters meets Futures model. Thrift for RPC ZooKeeper

    for Service Discovery from twitter Finatra Scala lib

  33. ! Zipkin A distributed tracing system

  34. Apache Mesos Develop and run resource-efficient distributed systems ! !

    Cluster manager that simplifies the complexity of running applications on a shared pool of servers.

  35. Learned lessons! ! What things we would do differently?

  36. Thanks!