Root cause
Debezium 2.0 renamed the schema history properties: database.history.kafka.* became schema.history.internal.kafka.*. Connectors upgraded from 1.x still have the old property names, which are now silently ignored, causing a startup failure.
How to fix
- Rename database.history.kafka.bootstrap.servers → schema.history.internal.kafka.bootstrap.servers
- Rename database.history.kafka.topic → schema.history.internal.kafka.topic
- Remove any other database.history.* properties and replace with their schema.history.internal.* equivalents.
- Full property migration guide: debezium.io/documentation/reference/2.0/upgrade.html
Official Debezium documentation ↗