Re:Ask HN: Have you used SQLite as a primary database?
by jmstfv on Monday April 25, 2022 @08:10AM
(#31153365)
Lately, Rails has been complaining about connection timeouts, stating that all connections in the pool were in use (this usually happens when Sidekiq, a background jobs framework, processes multiple long-running jobs).
By default, the connection pool in Rails contains 5 connections, and they time out within 5 seconds.
Also they're where the real insights are.