Beispiel #1
0
func newReplicaDataIterator(
	d *roachpb.RangeDescriptor, e engine.Reader, replicatedOnly bool,
) *replicaDataIterator {
	rangeFunc := makeAllKeyRanges
	if replicatedOnly {
		rangeFunc = makeReplicatedKeyRanges
	}
	ri := &replicaDataIterator{
		ranges:   rangeFunc(d),
		Iterator: e.NewIterator(false),
	}
	ri.Seek(ri.ranges[ri.curIndex].start)
	return ri
}
Beispiel #2
0
// ComputeStatsForRange computes the stats for a given range by
// iterating over all key ranges for the given range that should
// be accounted for in its stats.
func ComputeStatsForRange(
	d *roachpb.RangeDescriptor, e engine.Reader, nowNanos int64,
) (engine.MVCCStats, error) {
	iter := e.NewIterator(false)
	defer iter.Close()

	ms := engine.MVCCStats{}
	for _, r := range makeReplicatedKeyRanges(d) {
		msDelta, err := iter.ComputeStats(r.start, r.end, nowNanos)
		if err != nil {
			return engine.MVCCStats{}, err
		}
		ms.Add(msDelta)
	}
	return ms, nil
}