---
title: "Understanding Active Record Connection Pooling"
url: https://daily.dev/posts/understanding-active-record-connection-pooling-fca1r1ppl
source_url: https://www.bigbinary.com/blog/understanding-active-record-connection-pooling
type: article
source: "BigBinary"
published: 2025-05-13T07:01:10.294Z
updated: 2025-05-13T07:01:26.088Z
tags: ["webdev", "performance", "database", "ruby", "rails"]
reading_time: 12
upvotes: 2
comments: 2
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Understanding Active Record Connection Pooling

**[BigBinary](https://daily.dev/sources/bigbinary)** · 12 min read · 2 upvotes · 2 comments

## Summary

Learn about Active Record connection pooling, a performance optimization technique for Rails applications that maintains reusable database connections to reduce connection setup time. Discover the configuration options through the database.yml file, including how to handle connection timeout errors and the role of the Reaper in managing dead or idle connections. Explore additional pooling solutions like PgBouncer and async query execution with load_async.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://www.bigbinary.com/blog/understanding-active-record-connection-pooling>

## Community discussion

Top comments from developers on daily.dev.

**@pdkitf** · 0 upvotes

> Very useful article.

**@kdavid** · 0 upvotes

> man i remember googling so much about this - nothing beats  getting your pool  dialed in and seeing  those timeouts disappear

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---

Tags: [#webdev](https://daily.dev/tags/webdev), [#performance](https://daily.dev/tags/performance), [#database](https://daily.dev/tags/database), [#ruby](https://daily.dev/tags/ruby), [#rails](https://daily.dev/tags/rails)

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