lrgworkers []chan ReplicationWorkerOperation

	// mrf:
	mrfWorkerKillCh chan struct{}
	mrfReplicaCh    chan ReplicationWorkerOperation
	mrfSaveCh       chan MRFReplicateEntry
	mrfStopCh       chan struct{}
	mrfWorkerSize   int
}

// ReplicationWorkerOperation is a shared interface of replication operations.
type ReplicationWorkerOperation interface {
	ToMRFEntry() MRFReplicateEntry
}