How many students can one online live class hold?
It depends on the format. Interactive classes where students speak work for a few dozen, while broadcast classes reach thousands; teaching and doubt handling, not software, set the real limit.
#scaling
5 articles tagged #scaling
Articles
How to scale a video learning platform
From transcoding and CDNs to live classes and test-day spikes: an engineer's guide to scaling video learning for thousands of students at once.
How to handle 100,000 concurrent users
Load balancing, caching, queues, read replicas, connection pooling, autoscaling and load testing: how to build a platform that survives its busiest minute.
Cache stampede and the thundering herd problem
Why one expired key can overload your database, and how locks, request coalescing, probabilistic early refresh, TTL jitter and serving stale data prevent it.
Read replicas and database replication explained
How PostgreSQL streaming replication works, synchronous vs asynchronous commits, routing reads in Django, handling replication lag, and replicas for failover.
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