Auto offset commit failed

[yuanjia8...@163.com]

Hi All,
    My kafka cluster is kafka0.10.0.
    I have found two reasons for Auto offset commit failed in the log file. One 
is Commit cannot be completed since the group has already rebalanced and 
assigned the partitions to another member, and another is Commit offsets failed 
with retriable exception. You should retry committing offsets.
    My questions are:
   1. When the consumer rejoin group?
   2. Could it be consuming the message repeatly during rebalancing?
  
    Thanks.



Yuanjia Li