EPISODE · Jun 28, 2026 · 8 MIN
Why Database Schema Migrations Fail Without Feature Flags
from Database Tech with Fexingo: SQL, NoSQL, and Data Storage Conversations · host Fexingo
Lucas and Luna discuss a painful production outage at a fintech company caused by a database schema migration that ran before the application code was ready. They explain how feature flags can decouple deployment from release, the risks of online DDL tools in high-traffic systems, and why many teams still treat migrations as an afterthought. Specific numbers: 47-minute write lock, 12 terabytes of data, 3.2 million transactions per minute. A practical episode for engineers who want to sleep better on deployment nights. #Database #SchemaMigration #FeatureFlags #OnlineDDL #Fintech #ProductionIncident #WriteLock #DatabaseDesign #DevOps #ControlledDeployment #DataEngineering #Technology #FexingoBusiness #BusinessPodcast #LucasAndLuna #DatabaseBestPractices #MigrationStrategy #ReleaseManagement Keep every episode free: buymeacoffee.com/fexingo
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Why Database Schema Migrations Fail Without Feature Flags
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