Beispiel #1
0
func checkRangeDescriptorKey(key engine.MVCCKey) error {
	_, suffix, _, err := keys.DecodeRangeKey(key.Key)
	if err != nil {
		return err
	}
	if !bytes.Equal(suffix, keys.LocalRangeDescriptorSuffix) {
		return fmt.Errorf("wrong suffix: %s", suffix)
	}
	return nil
}
Beispiel #2
0
func tryRangeDescriptor(kv engine.MVCCKeyValue) (string, error) {
	_, suffix, _, err := keys.DecodeRangeKey(kv.Key.Key)
	if err != nil {
		return "", err
	}
	if !bytes.Equal(suffix, keys.LocalRangeDescriptorSuffix) {
		return "", fmt.Errorf("wrong suffix: %s", suffix)
	}
	value := roachpb.Value{
		RawBytes: kv.Value,
	}
	var desc roachpb.RangeDescriptor
	if err := value.GetProto(&desc); err != nil {
		return "", err
	}
	return descStr(desc), nil
}
Beispiel #3
0
func printRangeDescriptor(kv engine.MVCCKeyValue) (bool, error) {
	startKey, suffix, _, err := keys.DecodeRangeKey(kv.Key.Key)
	if err != nil {
		return false, err
	}
	if !bytes.Equal(suffix, keys.LocalRangeDescriptorSuffix) {
		return false, nil
	}
	value := roachpb.Value{
		RawBytes: kv.Value,
	}
	var desc roachpb.RangeDescriptor
	if err := value.GetProto(&desc); err != nil {
		return false, err
	}
	fmt.Printf("Range descriptor with start key %s at time %s\n%s\n", startKey, kv.Key.Timestamp.GoTime(), &desc)
	return false, nil
}
Beispiel #4
0
func runDebugGCCmd(cmd *cobra.Command, args []string) error {
	stopper := stop.NewStopper()
	defer stopper.Stop()

	if len(args) != 1 {
		return errors.New("required arguments: dir")
	}

	var rangeID roachpb.RangeID
	if len(args) == 2 {
		var err error
		if rangeID, err = parseRangeID(args[1]); err != nil {
			return err
		}
	}

	db, err := openStore(cmd, args[0], stopper)
	if err != nil {
		return err
	}

	start := keys.RangeDescriptorKey(roachpb.RKeyMin)
	end := keys.RangeDescriptorKey(roachpb.RKeyMax)

	var descs []roachpb.RangeDescriptor

	if _, err := engine.MVCCIterate(context.Background(), db, start, end, hlc.MaxTimestamp,
		false /* !consistent */, nil, /* txn */
		false /* !reverse */, func(kv roachpb.KeyValue) (bool, error) {
			var desc roachpb.RangeDescriptor
			_, suffix, _, err := keys.DecodeRangeKey(kv.Key)
			if err != nil {
				return false, err
			}
			if !bytes.Equal(suffix, keys.LocalRangeDescriptorSuffix) {
				return false, nil
			}
			if err := kv.Value.GetProto(&desc); err != nil {
				return false, err
			}
			if desc.RangeID == rangeID || rangeID == 0 {
				descs = append(descs, desc)
			}
			return desc.RangeID == rangeID, nil
		}); err != nil {
		return err
	}

	if len(descs) == 0 {
		return fmt.Errorf("no range matching the criteria found")
	}

	for _, desc := range descs {
		snap := db.NewSnapshot()
		defer snap.Close()
		_, info, err := storage.RunGC(context.Background(), &desc, snap, hlc.Timestamp{WallTime: timeutil.Now().UnixNano()},
			config.GCPolicy{TTLSeconds: 24 * 60 * 60 /* 1 day */}, func(_ hlc.Timestamp, _ *roachpb.Transaction, _ roachpb.PushTxnType) {
			}, func(_ []roachpb.Intent, _, _ bool) error { return nil })
		if err != nil {
			return err
		}
		fmt.Printf("RangeID: %d [%s, %s):\n", desc.RangeID, desc.StartKey, desc.EndKey)
		_, _ = pretty.Println(info)
	}
	return nil
}