How to check consumer offsets when the offset store is Kafka?

Question

From 0.8.1.1 release, Kafka provides the provision for storage of offsets in Kafka, instead of Zookeeper (see this). I'm not able to figure out how to check the details of offsets consumed, as the current tools only provide consumer offset count checks for zookeeper only.(I'm referring to this)

If there are any tools available to check consumer offset, please let me know.

Answer 1

The following straight command gives the enough details:

kafka-consumer-groups.sh --bootstrap-server localhost:9092 --describe --group my-second-application

You will get the details like this

TOPIC           PARTITION  CURRENT-OFFSET  LOG-END-OFFSET  LAG             CONSUMER-ID                                     HOST            CLIENT-ID
first_topic     0          4               4               0               consumer-1-7cb31cf3-1621-4635-8f95-6ae85215b31b /10.200.237.53  consumer-1
first_topic     1          3               3               0               consumer-1-7cb31cf3-1621-4635-8f95-6ae85215b31b /10.200.237.53  consumer-1
first_topic     2          3               3               0               consumer-1-7cb31cf3-1621-4635-8f95-6ae85215b31b /10.200.237.53  consumer-1
first-topic     0          4               4               0               -                                               -               -

Answer 2

I'am using kafka 0.8.2 with offsets stored in kafka. This tools works good for me:

./kafka-run-class.sh kafka.tools.ConsumerOffsetChecker 
        --topic your-topic 
        --group your-consumer-group
        --zookeeper localhost:2181

You get all informations you need: topic size, consumer lag, owner.