"A practical guide to zero downtime database migration. š ļø
Key insights: š¹ Combine replication, app compatibility, controlled cutover š¹ Map hidden writers, background jobs, dependencies š¹ Use CDC, blue-green, expand-and-contract š¹ Rehearse, validate, define rollback criteria š¹ Measure by business events, not just replication lag
A must-read for CTOs, database architects, and engineering leaders.
#DatabaseMigration #ZeroDowntime #CTO #DevOps"