Rename kafka consumer group in Sarama?

Question

I have a use case in which I want to rename the consumer_group_2 to consumer_group . I want to do this because I want to start consuming from the last consumed offset of consumer_group_2 but I want to rename the group id from consumer_group to consumer_group_2

Is it possible in Sarama consumer group?

Answer 1

You can't rename a consumer group.

You need to create a new consumer group and commit the same offsets as your other group. You do use the following:

• admin.ListConsumerGroupOffsets() to first retrieve offsets from the old group
• send an OffsetCommitRequest with the offsets and the new group
• admin.DeleteConsumerGroup() to delete the old group