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Overview
Andrew Atkinson Software Engineer blog about PostgreSQL, Ruby on Rails, Elasticsearch, Kubernetes, and Vim. Andrew is the Author of Ruby bestseller High Performance PostgreSQL for Rails.
News
From Christmas Outage to #1 App Store Ranking: An Aura Frames Postgres Scaling Retrospective
Overview On Christmas Day 2024, Postgres infrastructure powering the Aura Frames API had problems under peak load, being unavailable for three hours and disrupting the experience for new customers. The team knew it would need improvements to handle the su
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Scaling Rails at Aura Frames: Splitting to 8 Primary DBs and Reaching #1 in the App Store
Overview Ruby on Rails has helped make it possible to scale out the database layer, meeting the demands of millions of Aura Frames customers enjoying their digital photo frames. In late 2025, the team added additional primary databases to expand capacity
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Avoid UUID Version 4 Primary Keys
Introduction Over the last decade, when working on databases with UUID Version 41 as the primary key data type, these databases have usually had bad performance and excessive IO. https://datatracker.ietf.org/doc/html/rfc4122#section-4.4
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Core Database Design
Introduction In this post, we'll cover some database design principles and package them up into a catchy mnemonic acronym.
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Tip: Put your Rails app on a SQL Query diet
Introduction Much of the time taken processing HTTP requests in web apps is SQL queries. To minimize that, we want to avoid unnecessary and duplicate queries, and generally perform as few queries as possible.
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