Failed Migration & Upgrade Rollback
A schema migration half-applied, a version upgrade failed, or a cloud move left data inconsistent. We get you to a known-good state.
Signs you are here
- A migration stopped part way and the app no longer starts
- A major-version upgrade will not complete or start
- Data is missing or duplicated after moving to the cloud
Until someone has taken a copy, avoid restarts, repair commands, and restores over the original.
How we approach it
- Freeze and assess Establish what applied, what did not, and what changed since.
- Choose the direction Roll back, or roll forward with a fix — whichever loses less.
- Execute in a copy Rehearse the recovery on a copy before touching production.
- Make it repeatable Leave you a tested migration and rollback plan for the next attempt.
Questions
Our framework migration tool says it is complete. Why is data wrong?
Migration tools track scripts, not data. We compare the actual schema and data against what the application expects.
Engines we work with
- PostgreSQL
- MySQL
- MariaDB
- SQL Server
- AWS RDS & Aurora
- Google Cloud SQL
- Azure SQL