Kafka has rebalancing issues

[CCTV-six]

CurrentBehavior

ERROR [Consumer clientId=consumer-group-1, groupId=consumer-group-1] Error while fetching metadata with correlation id 110 : {consumer-group-1-topic-0=LEADER_NOT_AVAILABLE} (org.apache.kafka.clients.consumer.internals.Fetcher)

WARN [Consumer clientId=consumer-group-1, groupId=consumer-group-1] Auto-commit of offsets {consumer-group-1-topic-0=OFFSET(-1), ...} failed for group consumer-group-1: Commit cannot be completed since the group has already rebalanced and assigned the partitions to another member. This means that the time between subsequent calls to poll() was longer than the configured max.poll.interval.ms, which typically implies that the poll loop is spending too much time message processing. You can address this either by increasing max.poll.interval.ms or by reducing the maximum size of batches returned in poll() with max.poll.records. (org.apache.kafka.clients.consumer.internals.ConsumerCoordinator)

ExpectedBehavior

Consumers can handle messages stably and trigger unnecessary rebalancing.

[OneCricketeer]

Are you sure this is an issue with the container and not Kafka itself / the code you've not shared?