How to Pull Off a Database Migration with LaunchDarkly

The text discusses a live session at AWS re:Invent 2021 by LaunchDarkly's Mike Zorn and Justin Caballero, where they demonstrated techniques for painless database migration. They explained how to convert a streaming event architecture and migrate production databases with zero downtime using feature flags. The main objective during the migration was to ensure that users did not notice any changes or experience disruptions in service. Feature flags were used to control the process, allowing for gradual changes, immediate reversibility, and verification of new system functionality before switching over. This approach allowed LaunchDarkly to test out their new database in production without affecting user experience.