A technical lead shares practical lessons from scaling a monolithic codebase to 1 million lines of code, focusing on database performance challenges. Key insights include addressing pagination count issues through annotation stripping and estimated counts, plus warnings about long-running cron jobs impacting system performance. The article draws from real-world experience with a Django/React codebase on a 20-person team.
Background
Many companies face challenges when scaling monolithic applications, particularly around database performance and system architecture as codebases grow large. Traditional approaches to common problems like pagination counts can become performance bottlenecks at scale.
- Source
- Lobsters
- Published
- Mar 27, 2026 at 02:32 PM
- Score
- 6.0 / 10