WebSockets, while simple, present scaling challenges due to their stateful and persistent nature, consuming significant server resources like memory and CPU per connection. This resource consumption grows nearly linearly with the number of users, quickly becoming a bottleneck for applications needing to support tens of thousands of concurrent connections. To address this, architectures typically involve distributing connections across multiple servers using a reverse proxy like Nginx and synchronizing messages between instances with a Redis Pub/Sub layer, transforming the problem into a distributed systems challenge. AI
IMPACT N/A
RANK_REASON Discusses infrastructure scaling challenges and architectural solutions for WebSockets, involving tools like AWS, Nginx, and Redis.
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