CurrentlyReadingWAL indicates that we're currently reading the WAL at a given offset.

FollowerFailed records the fact that a follower failed (which is analogous to leaving).

FollowerJoined records the fact that a follower joined the leader.

QueuedForFollower records how many measurements are queued for a given Follower.

SetNumPartitions sets the number of partitions in the cluster.

FollowerStats provides stats for a single follower.

LeaderStats provides stats for the cluster leader.

PartitionStats provides stats for a single partition.

Stats are the overall stats.