Example #1
0
func setFrozenStatus(
	ctx context.Context,
	eng engine.ReadWriter,
	ms *enginepb.MVCCStats,
	rangeID roachpb.RangeID,
	frozen storagebase.ReplicaState_FrozenEnum,
) error {
	if frozen == storagebase.ReplicaState_FROZEN_UNSPECIFIED {
		return errors.New("cannot persist unspecified FrozenStatus")
	}
	var val roachpb.Value
	val.SetBool(frozen == storagebase.ReplicaState_FROZEN)
	return engine.MVCCPut(ctx, eng, ms,
		keys.RangeFrozenStatusKey(rangeID), hlc.ZeroTimestamp, val, nil)
}
// 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 https://github.com/cockroachdb/cockroach/issues/437,
		// 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(), r.store.Engine(), nil, keyTS.key, keyTS.ts, roachpb.MakeValueFromString("value"), nil); err != nil {
			t.Fatal(err)
		}
		keys = append(keys, engine.MVCCKey{Key: keyTS.key, Timestamp: keyTS.ts})
	}
	return keys
}
Example #3
0
func loadFrozenStatus(
	ctx context.Context, reader engine.Reader, rangeID roachpb.RangeID,
) (storagebase.ReplicaState_FrozenEnum, error) {
	var zero storagebase.ReplicaState_FrozenEnum
	val, _, err := engine.MVCCGet(ctx, reader, keys.RangeFrozenStatusKey(rangeID),
		hlc.ZeroTimestamp, true, nil)
	if err != nil {
		return zero, err
	}
	if val == nil {
		return storagebase.ReplicaState_UNFROZEN, nil
	}
	if frozen, err := val.GetBool(); err != nil {
		return zero, err
	} else if frozen {
		return storagebase.ReplicaState_FROZEN, nil
	}
	return storagebase.ReplicaState_UNFROZEN, nil
}