A typical reason for many rebalancing is the consumer side GC. If so, you
will see logs in the consume saying sth like "expired session" for ZK.
Occasional rebalances are fine. Too many rebalances can slow down the
consumption and you will need to tune your GC setting.
On Thu, Mar 21, 2013 at 11:07 PM, Yonghui Zhao <[EMAIL PROTECTED]>wrote: