Broker returns this error if a request could not be processed because the broker is not the leader
or follower for a topic partition. This could be a transient exception during leader elections and
reassignments. For `Produce` and other requests which are intended only for the leader, this exception
indicates that the broker is not the current leader. For consumer `Fetch` requests which may be
satisfied by a leader or follower, this exception indicates that the broker is not a replica
of the topic partition.