The log is super unhelpful. When I have a 2.1.0 etcd, it prints out `2.0.1 vaild dir`. I have no idea why the data dir of a 2.1.0 etcd is 2.0.1.
@@ -127,7 +127,6 @@ func upgradeDataDir(baseDataDir string, name string, ver version.DataDirVersion)
case version.DataDir2_0_1:
fallthrough
default:
- log.Printf("etcdserver: datadir is valid for the 2.0.1 format")
}
return nil