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etcdserver: refuse to restart if backend file is missing

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This commit is contained in:
Xiang Li 2016-06-26 20:14:43 -07:00
parent 3424f95b03
commit 891ddcba6e
1 changed files with 8 additions and 1 deletions
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9
etcdserver/server.go
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@ -247,7 +247,10 @@ func NewServer(cfg *ServerConfig) (srv *EtcdServer, err error) {
plog.Fatalf("create snapshot directory error: %v", err)
}
ss := snap.New(cfg.SnapDir())
be := backend.NewDefaultBackend(path.Join(cfg.SnapDir(), databaseFilename))
bepath := path.Join(cfg.SnapDir(), databaseFilename)
beExist := fileutil.Exist(bepath)
be := backend.NewDefaultBackend(bepath)
defer func() {
if err != nil {
be.Close()
@ -351,6 +354,10 @@ func NewServer(cfg *ServerConfig) (srv *EtcdServer, err error) {
cl.SetStore(st)
cl.SetBackend(be)
cl.Recover()
if cl.Version() != nil && cl.Version().LessThan(semver.Version{Major: 3}) && !beExist {
os.RemoveAll(bepath)
return nil, fmt.Errorf("database file (%v) of the backend is missing", bepath)
}
default:
return nil, fmt.Errorf("unsupported bootstrap config")
}