ConvertCompactLen convert compactLen into realLen.

CORRUPT_MESSAGE This message has failed its CRC checksum, exceeds the valid size, has a null key for a compacted topic, or is otherwise corrupt.

INVALID_FETCH_SIZE The requested fetch size is invalid.

LEADER_NOT_AVAILABLE There is no leader for this topic-partition as we are in the middle of a leadership election.

MEMBER_ID_REQUIRED The group member needs to have a valid member id before actually entering a consumer group.

NOT_LEADER_OR_FOLLOWER For requests intended only for the leader, this error indicates that the broker is not the current leader.

OFFSET_OUT_OF_RANGE The requested offset is not within the range of offsets maintained by the server.

REQUEST_TIMED_OUT The request timed out.

UNKNOWN_SERVER_ERROR The server experienced an unexpected error when processing the request.

UNKNOWN_TOPIC_OR_PARTITION This server does not host this topic-partition.