func (r *ReplicationStats) srUpdateReplicaStat(sz int64) {
	if r == nil {
		return
	}
	atomic.AddInt64(&r.srStats.ReplicaSize, sz)
	atomic.AddInt64(&r.srStats.ReplicaCount, 1)
}

func (r *ReplicationStats) srUpdate(sr replStat) {
	dID, err := globalSiteReplicationSys.getDeplIDForEndpoint(sr.endpoint())
	if err == nil {
		r.srStats.update(sr, dID)
	}
}

// Update updates in-memory replication statistics with new values.