Esempio n. 1
func loadTxnSpanGCThreshold(
	ctx context.Context, reader engine.Reader, rangeID roachpb.RangeID,
) (hlc.Timestamp, error) {
	var t hlc.Timestamp
	_, err := engine.MVCCGetProto(ctx, reader, keys.RangeTxnSpanGCThresholdKey(rangeID),
		hlc.ZeroTimestamp, true, nil, &t)
	return t, err
Esempio n. 2
func setTxnSpanGCThreshold(
	ctx context.Context,
	eng engine.ReadWriter,
	ms *enginepb.MVCCStats,
	rangeID roachpb.RangeID,
	threshold *hlc.Timestamp,
) error {
	if threshold == nil {
		return errors.New("cannot persist nil TxnSpanGCThreshold")

	return engine.MVCCPutProto(ctx, eng, ms,
		keys.RangeTxnSpanGCThresholdKey(rangeID), hlc.ZeroTimestamp, nil, threshold)
Esempio n. 3
// createRangeData creates sample range data in all possible areas of
// the key space. Returns a slice of the encoded keys of all created
// data.
func createRangeData(t *testing.T, r *Replica) []engine.MVCCKey {
	ts0 := hlc.ZeroTimestamp
	ts := hlc.Timestamp{WallTime: 1}
	desc := r.Desc()
	keyTSs := []struct {
		key roachpb.Key
		ts  hlc.Timestamp
		{keys.AbortCacheKey(r.RangeID, testTxnID), ts0},
		{keys.AbortCacheKey(r.RangeID, testTxnID2), ts0},
		{keys.RangeFrozenStatusKey(r.RangeID), ts0},
		{keys.RangeLastGCKey(r.RangeID), ts0},
		{keys.RaftAppliedIndexKey(r.RangeID), ts0},
		{keys.RaftTruncatedStateKey(r.RangeID), ts0},
		{keys.RangeLeaseKey(r.RangeID), ts0},
		{keys.LeaseAppliedIndexKey(r.RangeID), ts0},
		{keys.RangeStatsKey(r.RangeID), ts0},
		{keys.RangeTxnSpanGCThresholdKey(r.RangeID), ts0},
		{keys.RaftHardStateKey(r.RangeID), ts0},
		{keys.RaftLastIndexKey(r.RangeID), ts0},
		{keys.RaftLogKey(r.RangeID, 1), ts0},
		{keys.RaftLogKey(r.RangeID, 2), ts0},
		{keys.RangeLastReplicaGCTimestampKey(r.RangeID), ts0},
		{keys.RangeLastVerificationTimestampKeyDeprecated(r.RangeID), ts0},
		{keys.RangeDescriptorKey(desc.StartKey), ts},
		{keys.TransactionKey(roachpb.Key(desc.StartKey), uuid.MakeV4()), ts0},
		{keys.TransactionKey(roachpb.Key(desc.StartKey.Next()), uuid.MakeV4()), ts0},
		{keys.TransactionKey(fakePrevKey(desc.EndKey), uuid.MakeV4()), ts0},
		// TODO(bdarnell): KeyMin.Next() results in a key in the reserved system-local space.
		// Once we have resolved,
		// replace this with something that reliably generates the first valid key in the range.
		//{r.Desc().StartKey.Next(), ts},
		// The following line is similar to StartKey.Next() but adds more to the key to
		// avoid falling into the system-local space.
		{append(append([]byte{}, desc.StartKey...), '\x02'), ts},
		{fakePrevKey(r.Desc().EndKey), ts},

	keys := []engine.MVCCKey{}
	for _, keyTS := range keyTSs {
		if err := engine.MVCCPut(context.Background(),, nil, keyTS.key, keyTS.ts, roachpb.MakeValueFromString("value"), nil); err != nil {
		keys = append(keys, engine.MVCCKey{Key: keyTS.key, Timestamp: keyTS.ts})
	return keys