Is it possible to prevent a consumer offset rewind during / after a rebalance?

[brimonk]

Question

I'd like to use Kafka (and librdkafka) to return messages in the correct order in my consumer every time.

The situation that I've got is a topic with multiple partitions (2 in my reproduction), with 1 producer and 1 consumer per partition. When a consumer leaves / rejoins the group, there's a consumer rebalance that occurs.

After the rebalance occurs, my consumers jump back an indeterminate number of messages, and begin consumption from there.

So, I have a few questions on this:

• Is this normal behavior?
• If this is normal behavior, is there anything I should be doing to prevent this?

Related

It looks like #3710 is related, but even with version 1.9.1-1-g4faeb8, I'm still seeing these offset rewind issues.

(Lengthy) Reproduction

• https://gist.github.com/brimonk/017cd8d7375d0749bf7e087af7c90cbf