Beispiel #1
0
func dump4(dataDir string) ([]raftpb.Entry, error) {
	lf4 := logFile4(dataDir)
	ents, err := migrate.DecodeLog4FromFile(lf4)
	if err != nil {
		return nil, err
	}

	return migrate.Entries4To2(ents)
}
Beispiel #2
0
func checkInternalVersionByDataDir4(dataDir string) (version, error) {
	// check v0.4 snapshot
	snap4, err := migrate.DecodeLatestSnapshot4FromDir(snapDir4(dataDir))
	if err != nil {
		return internalUnknown, err
	}
	if snap4 != nil {
		st := &migrate.Store4{}
		if err := json.Unmarshal(snap4.State, st); err != nil {
			return internalUnknown, err
		}
		dir := st.Root.Children["_etcd"]
		n, ok := dir.Children["next-internal-version"]
		if ok && n.Value == "2" {
			return internalV2, nil
		}
	}

	// check v0.4 log
	ents4, err := migrate.DecodeLog4FromFile(logFile4(dataDir))
	if err != nil {
		return internalUnknown, err
	}
	for _, e := range ents4 {
		cmd, err := migrate.NewCommand4(e.GetCommandName(), e.GetCommand(), nil)
		if err != nil {
			return internalUnknown, err
		}
		setcmd, ok := cmd.(*migrate.SetCommand)
		if !ok {
			continue
		}
		if setcmd.Key == "/_etcd/next-internal-version" && setcmd.Value == "2" {
			return internalV2, nil
		}
	}
	return internalV1, nil
}