It would be very usefull to provide kafka information in a system table.
it then can be queryed for monitoring of the kafka ingestion.
things suchs as commited offsets. topic's amount of partitions etc.

secondly, it would be good to provide a way/config settings to set the logging level of librdkafka currently its set to default so the clickhouse-server.log receives huge spamming of all the librdkafka debug information.