MODERNIZING REDDIT'S COMMENT BACKEND INFRASTRUCTURE

Summary from the TLDR Dev newsletter

Reddit's infrastructure organization aims to deliver reliability and performance with a modern tech stack, which involves completely getting rid of its Python monoliths. It has four core models: Comments, Accounts, Posts, and Subreddits. Comments and Accounts have now been fully migrated from Reddit's Python monolith to domain-specific Go microservices. This post looks at how Reddit's team performed the migration and the lessons learned along the way.