https://github.com/quantifind/KafkaOffsetMonitor
only support consumer new api('__consumer_offsets')
java -cp offsetapp-jar-with-dependencies.jar \
com.quantifind.kafka.offsetapp.OffsetGetterWeb \
--offsetStorage kafka \
--zk zk-server1,zk-server2 \
--port 9099 \
--refresh 10.seconds \
--retain 1.days