You are looking at the wrong path in ZK. The correct path for consumer offset is /consumers/[groupId]/offsets/[topic]/[partitionId] -> long (offset). For more details on our ZK layout, see https://cwiki.apache.org/confluence/display/KAFKA/Kafka+data+structures+in+Zookeeper
Thanks, Jun On Wed, May 22, 2013 at 11:21 PM, rk vishu <talk2had...@gmail.com> wrote: > Hello All, > > I recently started experimenting Kafka for my usecase. I am running 0.8 in > two node kafka setup. > > I produced 20messages using a java program(1 partition with 2 replicas) and > I am running the consumer code as given in the example > https://cwiki.apache.org/KAFKA/consumer-group-example.html. Consumer > consumes all the messages and after 10sec program shuts down. Based on the > configuration in the example, i am expecting that consumer offsets will be > saved on ZK. If i start the program again, i should not be consuming the > same messages again. But i am seeing different behavior. Messages are > getting replayed. I am not seeing any update in ZK also. > > [zk: localhost:2181(CONNECTED) 13] get /consumers/1 > null > cZxid = 0x8009ff0ee > ctime = Wed May 22 16:59:21 PDT 2013 > mZxid = 0x8009ff0ee > mtime = Wed May 22 16:59:21 PDT 2013 > pZxid = 0x8009ff0f4 > cversion = 2 > dataVersion = 0 > aclVersion = 0 > ephemeralOwner = 0x0 > dataLength = 0 > numChildren = 2 > > > Could any one of you explain me what could be the issue? > > Ravi >
