if err != nil {
		// No useful information...
		return cache, err
	}
	s.newCache.forceCompact(dataScannerCompactAtChildren)
	s.newCache.Info.LastUpdate = UTCNow()
	s.newCache.Info.NextCycle = cache.Info.NextCycle
	return s.newCache, nil
}

// sendUpdate() should be called on a regular basis when the newCache contains more recent total than previously.
// May or may not send an update upstream.