Surviving a Prime Time TV Commercial

on YouTube ↗45m

" summary

E-commerce front end built with Symfony2 serves pages under 100 ms behind Varnish and survives thousands of concurrent visitors by using Elasticsearch as primary datastore (products, prices, availability), three cheap ES nodes with MySQL replication via triggers into an append-only table polled every 60s, and automated deployment (Puppet, Capistrano, supervisorD). Traffic splits by protocol so HTTP hits fast front end and HTTPS goes to legacy checkout, cart state uses a marker cookie, assets live on S3/CloudFront, and staging mirrors production for realistic load tests.

AI-written summary · about

" chapters (29)

1. 0:00Introduction
2. 1:48The challenge
3. 4:17TV ad traffic spike
4. 6:44Scaling e-commerce sites
5. 8:51Hybrid architecture
6. 10:19Performance and reliability goals
7. 13:31Architectural decisions
8. 15:17Hosting and cloud
9. 18:27Symfony and bundle inheritance
10. 20:09Twig and template sharing
11. 20:51Elasticsearch as database
12. 22:16Hardware simplification
13. 24:01MySQL to Elasticsearch replication
14. 25:04SupervisorD for tasks
15. 26:50Cache invalidation and Varnish
16. 28:59Caching strategies and ESI
17. 30:21Traffic segregation
18. 31:48Shopping cart caching
19. 33:14Automated staging and production
20. 34:59Vagrant for development
21. 36:23Failure testing in staging
22. 37:05Profiling and performance
23. 38:06Business automation lessons
24. 38:48Logging and tracking
25. 39:33Load testing with Siege
26. 40:15Asset storage on S3
27. 41:20Transactional emails
28. 43:08Monitoring with New Relic
29. 43:49Current performance

" related talks

• 56mLarge scale websites performance optimisation tricksGeorgiana Gligor · PHP UK Conference 2016
• 50mBuilding and Operating Online Shops under Extreme LoadPhilipp v. Criegern · code.talks 2017
• 17mMaintaining performance across a highly dynamic commerce siteEric Grigorian · Vercel Ship 2024
• 35mSurviving Black Friday: Tales from an e-Commerce EngineerAaron Suggs · PAYMENTSfn 2019
• 27mScaling for the Expected and UnexBrian Moon · Velocity 2009
• 22mOptimization strategies for a performant, headless storefrontNicole France, Raff Paquin, Jason Cottrell · Vercel Ship 2024
• 47mFrom Legacy to High-Load: Evolution of a Web ApplicationYevgen Lysenko · Highload fwdays'18
• 24mCache for Commerce Performance and Optimization for High Volume SalesLauro Arujo · Next.js Conf 2020