WordPress Scalability
summary
Demonstrates a practical WordPress cluster: Nginx + PHP-FPM nodes behind a load balancer, sessions moved off-node to a central store (transcript says "radius"/Redis), and uploads mounted from a single NFS for shared uploads. Without caching the setup scales to ~50 nodes and ~1,000 concurrent requests while the database thrashes; adding FastCGI cache hits 10,000 concurrent requests at ~6% CPU. Notes on PHP versions, MariaDB vs MySQL, and auto-scaling latency are included.
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chapters (10)
- 0:00Introduction to speaker
- 1:13Challenges with WordPress
- 2:54Identifying scaling bottlenecks
- 5:53Problems with horizontal scaling
- 8:17Designing a scalable architecture
- 10:01Performance and pros and cons
- 13:26Implementation details
- 16:53Operational challenges
- 22:28FastCGI caching solution
- 24:54Q&A and final insights
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