// upgradeWAL converts an older version of the etcdServer data to the newest version.
// It must ensure that, after upgrading, the most recent version is present.
func upgradeWAL(cfg *ServerConfig, ver wal.WalVersion) error {
if ver == wal.WALv0_4 {
log.Print("etcdserver: converting v0.4 log to v2.0")
err := migrate.Migrate4To2(cfg.DataDir, cfg.Name)
if err != nil {
log.Fatalf("etcdserver: failed migrating data-dir: %v", err)
return err
}
}
return nil
}
func main() {
from := flag.String("data-dir", "", "etcd v0.4 data-dir")
name := flag.String("name", "", "etcd node name")
flag.Parse()
if *from == "" {
log.Fatal("Must provide -data-dir flag")
}
err := migrate.Migrate4To2(*from, *name)
if err != nil {
log.Fatalf("Failed migrating data-dir: %v", err)
}
}
// upgradeWAL converts an older version of the etcdServer data to the newest version.
// It must ensure that, after upgrading, the most recent version is present.
func upgradeDataDir(baseDataDir string, name string, ver version.DataDirVersion) error {
switch ver {
case version.DataDir0_4:
plog.Infof("converting v0.4 log to v2.0")
err := migrate.Migrate4To2(baseDataDir, name)
if err != nil {
plog.Fatalf("failed to migrate data-dir (%v)", err)
return err
}
fallthrough
case version.DataDir2_0:
err := makeMemberDir(baseDataDir)
if err != nil {
return err
}
fallthrough
case version.DataDir2_0_1:
fallthrough
default:
}
return nil
}
// upgradeWAL converts an older version of the etcdServer data to the newest version.
// It must ensure that, after upgrading, the most recent version is present.
func upgradeDataDir(baseDataDir string, name string, ver version.DataDirVersion) error {
switch ver {
case version.DataDir0_4:
log.Print("etcdserver: converting v0.4 log to v2.0")
err := migrate.Migrate4To2(baseDataDir, name)
if err != nil {
log.Fatalf("etcdserver: failed migrating data-dir: %v", err)
return err
}
fallthrough
case version.DataDir2_0:
err := makeMemberDir(baseDataDir)
if err != nil {
return err
}
fallthrough
case version.DataDir2_0_1:
fallthrough
default:
log.Printf("etcdserver: datadir is valid for the 2.0.1 format")
}
return nil
}