The consumer group is used for coordination between consumer
The consumer group is given by the group.id configuration property of a consumer. A console will generate automatically one for you with the prefix console-consumer
kafka-consumer-groups --bootstrap-server broker:9092 --list
console-consumer-36650
console-consumer-92319
console-consumer-85351
console-consumer-69798
kafka-consumer-groups --bootstrap-server broker:9092 --describe --group console-consumer-36650
Note: This will only show information about consumers that use the Java consumer API (non-ZooKeeper-based consumers).
Consumer group 'console-consumer-36650' has no active members.
TOPIC PARTITION CURRENT-OFFSET LOG-END-OFFSET LAG CONSUMER-ID HOST CLIENT-ID
test-sqlite-jdbc-accounts 0 2 8 6 - - -
where you can see: