No, there isn't, not at the very start when there is no state in
Zookeeper. Once there is state the Kafka team have told me that
rebalancing will not result in any dupes.
However, if there is no state in Zookeeper and your partitions are
empty, simply wait until all consumers have balanced before sending
On Wed, Aug 21, 2013 at 12:30 PM, Yu, Libo <[EMAIL PROTECTED]> wrote: