Are consumer groups migrated?

A Restore re-produces records into Kafka, but it does not migrate consumer group offsets as part of that process.

Since Kafka assigns new offsets on restore, a consumer group’s committed positions from the source topic no longer line up with the restored records.

You can migrate the consumer groups with the kbridge tool. It maps each consumer group’s committed offsets from the original topic onto the restored topic, so your consumers resume from the right place after a restore.

The Migrate consumer groups tutorial walks through the full process step by step.