Database Migration

When upgrading an MPC node to a new version, database migration is sometimes necessary. Database migration will always happen automatically, provided that the database user of the MPC node has the right permissions.

The TSM release notes will always reveal if database migration will be performed.

Always perform a backup of the database before migrating.

A database migration may take a significant amount of time if there are many keys in the system and all keys must be reencrypted.

When a migration is in process, no other TSM nodes should access the database. In the scenario where one more or TSM nodes share the same database (for load balancing or failover purposes) ALL nodes must be stopped during database migration.