An Approach to Automated Application Tuning
- 1. An Approach to Automated Application Tuning Mike Huang, Sr. Performance Architect Performance and Reliability Engineering
- 3. Copy What Someone Else Is Doing Tweak Until Things “Work” Forget About It Something Changes Something Breaks Tuning. Ugh.
- 4. Why? ● Insufficient defaults ● One-size-fits-all myth ● Unfamiliar technology ● Complex interactions ● Time
- 6. Construct a Model 1. Frame the problem 2. Understand interactions 3. Define success 4. Narrow focus 5. Validate data and behavior 6. Refine
- 9. Spilled Milk
- 10. Goal Improve resiliency to downstream failures
- 13. Understanding Interactions Hystrix Service B EVCache EVC Client Ribbon Ribbon /all/the/movies Service A Hystrix EVC Client /moar/movies
- 14. Hystrix Hystrix Hystrix Understanding Interactions Hystrix Service B EVCache EVC Client Ribbon Ribbon /all/the/movies Service A Hystrix EVC Client /moar/movies
- 15. Hystrix Workflow
- 16. Define Success Under normal operations: ● Expire only the most egregious requests ● No concurrency constraint ● No premature fallback Under duress: ● Fail fast!
- 17. Assumptions ● Spectrum of desirable behavior ● You can’t win them all ● It’s okay to fail
- 18. Key Tunables ● Timeout ● Error Threshold ● Isolation Strategy ● Thread Pool Size ● Queue Size ● Batch Size
- 20. True Lies ● Recommendations are only as good as the data ● Data is only good if you understand it
- 21. Things Are Not Always As They Seem
- 22. Pick a Number, Any Number
- 23. How Low Can You Go?
- 25. Automation? Piece of Cake
- 26. Evaluate RecommendApply The Cake Is a Lie!
- 28. GO HOME – THERE ARE NO STINGERS HERE Credits.
- 29. Acknowldgements (Please Don’t Sue Me) Slide: 4 – Parks and Recreation (Season 2, Episode 4) 5 – http://www.musiclipse.com/wp-content/uploads/2013/09/nirvana-hd-photo-band-members.jpg 6 (C) – https://rtfitch.files.wordpress.com/2014/08/bojack-horseman.jpg 6 (BoJack) – http://www.serieslyawesome.tv/wp-content/uploads/2015/05/BoJack-Horseman-Season-2.jpg 9 (Drew Barrymore) – The Wedding Singer 9 (Angel of Grief) – https://en.wikipedia.org/wiki/Angel_of_Grief#/media/File:Emelyn_Story_Tomba_(Cimitero_Acattolico_Roma).jpg 9 (Angry Cat) – http://theeconomiccollapseblog.com/wp-content/uploads/2011/01/Angry-Cat.jpg 12 (Ribbon logo) – http://3.bp.blogspot.com/-8OQzOCw1rXY/VdE2mxvnybI/AAAAAAAABoE/ARq3Pa4v9yI/s1600/ribbon.png 12, 18 (Hystrix logo) – https://raw.githubusercontent.com/wiki/Netflix/Hystrix/images/hystrix-logo-tagline-640.png 15 – https://github.com/Netflix/Hystrix/wiki/How-it-Works/images/hystrix-flow-chart-original.png 20 – https://fanart.tv/fanart/movies/36955/moviebackground/true-lies-51036cf5a0251.jpg 25 – http://www.fmvmagazine.com/wp-content/uploads/2012/07/Portal-cake.jpg 26 – http://theportalwiki.com/wiki/File:The_bots.png 28 – Mike Huang