how to set group name when consuming messages in kafka using command line

Question

Any idea how to set group name when consuming messages in kafka using command line.

I tried with the following command :

bin/kafka-console-consumer.sh --         


        

Answer 1

The simplest solution is:

bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic nil_RF2_P2 --from-beginning --consumer-property group.id=test1

In case you specify the flag --from-beginning just remember that the consumer group should not have consumed any records in the past or else your consumer will start consuming from the earliest not consumed record by the specified group (and not from the actual beginning, as you may incorrectly assume).