configure the consumer partition assignment strategy

[varshith09 (rdwr-varshithp)]

I’m using confluent-kafka-go (librdkafka-based Go client) and trying to configure
the consumer partition assignment strategy.

When I set:

"partition.assignment.strategy": "sticky"

the consumer fails at startup with:

panic: Unsupported partition.assignment.strategy: sticky

However, I can see that:

• range - defeault
• cooperative-sticky works (incremental/cooperative rebalancing)

My questions are:

1. Is the eager StickyAssignor (sticky) intentionally NOT supported in
   confluent-kafka-go / librdkafka?
2. If yes, is cooperative-sticky the only sticky-based assignor available in Go?
3. Is there any plan to add support for eager sticky in the future, or should
   users rely on range for eager rebalancing?