
ConcurrencyGuide
Build a Connection Pool in Rust and Learn What Pools Do
A pool hands out reusable connections, caps how many exist and takes them back on drop. Building a small one explains the knobs on SQLx and deadpool.
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A pool hands out reusable connections, caps how many exist and takes them back on drop. Building a small one explains the knobs on SQLx and deadpool.

A pool that is too small queues requests and one that is too large exhausts the database. Learn how to size it from your server's limits, set timeouts and spot the symptoms.