Testing Network Conditions with ToxiProxy
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This document discusses using ToxiProxy to test network conditions and the resiliency of distributed applications. ToxiProxy allows developers to simulate network errors like latency, bandwidth limitations, and timeouts to test how an application responds. Distributed applications are dependent on network communication, so it is important for applications to gracefully handle network failures to provide a good user experience. ToxiProxy provides an API that allows developers to easily simulate failures and automate resiliency testing without modifying production environments.
Testing Network Conditions with ToxiProxy
- 1. Testing network conditions with ToxiProxy Celso Crivelaro @celsocrivelaro
- 2. Tech Lead @
- 3. Professor @
- 10. https://engineering.riotgames.com/news/fixing-internet-real-time-applications-part-i
- 15. Network fails
- 16. “A Distributed System is one in which the failure of a computer you didn’t even know existed can render your own computer unusable” Leslie Lamport
- 18. Network Model
- 19. "Ozzy" Model?
- 24. No connection No connection between parts Latency Timeout Bandwidth Slow Close Time to packages go and return Stop responding Bandwidth size in Mb/s Slow close connection
- 26. How your app responds to network errors
- 27. User perception to network problem Business rule to the problem Technical action to the problem
- 28. Resiliency
- 29. How to simulate?
- 30. Hard modify a staging env Hard to automate Low level tools -> For sysadmins No APIs for Devs or QA
- 36. How to automate
- 37. Some Solutions
- 38. Low timeout Retries Patterns - Circuit Break Fallbacks Caching strategies
- 40. App 1 Database API App 2 ZIP Checker External API App 3 Unavailable Unavailable Unavailable Unavailable Degraded Available Available Not Aplic. Not Aplic. Unavailable Degraded Degraded If integration fails...
- 41. References
- 45. Thank you! @celsocrivelaro Slides in: http://crivelaro.me