Take a look at this document:
https://cwiki.apache.org/confluence/display/KAFKA/Kafka+data+structures+in+Zookeeper
, Zookeeper :
/[clusterBasePath]/consumer/[groupId]//[]/[partitionId] → long (offset)
znode , , ( ).
, :
/[clusterBasePath]/consumer/[groupId]/owner/[topic]/[partitionId] → string (consumerId)
, , - -. rebalance.max.retries 50 ( ) rebalance.backoff.ms 5000. - Zookeeper .
, ( ?), , Zookeeper ( , ). Zookeeper .