Hi All, We're using kafka 0.10.0.0 and just encountered a weird issue I'd be happy to get some help with.
Seems like we can't query active consumer groups using the kafka-consumer-groups.sh script. Even more, listing all the active consumer groups usually results in empty response (or a very partial one, 2 active consumer groups out of ~1000, usually new consumer groups appear). We're using the new consumer (since kafka 0.9), multiple topics (with single partition each, and a single consumer group attached to each). The __consumer_offsets topic lasts > 1 month, if it matter somehow. The command I'm running: $> ./kafka-consumer-groups.sh --bootstrap-server localhost:9092 --new-consumer --describe --group my-consumer-group Consumer group `my-consumer-group` does not exist or is rebalancing. and $>./kafka-consumer-groups.sh --bootstrap-server localhost:9092 --new-consumer --list (doesn't return any output) Enabling debug (in the tools-log4j.properties, as I saw someone here suggested previously) didn't show any meaningful data. Any help will be gladly appreciate, Ofer.