Hey there,
I have a question regarding KIP-134<https://cwiki.apache.org/confluence/display/KAFKA/KIP-134%3A+Delay+initial+consumer+group+rebalance>. Basically this config `group.initial.rebalance.delay.ms` is set on broker side to delay the initial rebalance of consumer groups. For certain consumers, we would like to have customized group initial rebalance delay, since for some testing classes the time to bring up hosts (just 1) is minimal. We could code this delay in the first member join request, so that broker could start rebalancing faster than cluster level config. Does that make sense? Best, Boyang
