etcdserver: cleanup wal upgrade
parent
7d866dbc44
commit
f43bc809b9
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@ -36,7 +36,6 @@ import (
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"github.com/coreos/etcd/etcdserver/etcdhttp/httptypes"
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pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
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"github.com/coreos/etcd/etcdserver/stats"
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"github.com/coreos/etcd/migrate"
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"github.com/coreos/etcd/pkg/fileutil"
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"github.com/coreos/etcd/pkg/pbutil"
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"github.com/coreos/etcd/pkg/types"
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@ -163,20 +162,6 @@ type EtcdServer struct {
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raftLead uint64
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}
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// UpgradeWAL converts an older version of the EtcdServer data to the newest version.
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// It must ensure that, after upgrading, the most recent version is present.
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func UpgradeWAL(cfg *ServerConfig, ver wal.WalVersion) error {
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if ver == wal.WALv0_4 {
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log.Print("Converting v0.4 log to v2.0")
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err := migrate.Migrate4To2(cfg.DataDir, cfg.Name)
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if err != nil {
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log.Fatalf("Failed migrating data-dir: %v", err)
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return err
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}
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}
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return nil
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}
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// NewServer creates a new EtcdServer from the supplied configuration. The
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// configuration is considered static for the lifetime of the EtcdServer.
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func NewServer(cfg *ServerConfig) (*EtcdServer, error) {
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@ -194,13 +179,6 @@ func NewServer(cfg *ServerConfig) (*EtcdServer, error) {
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}
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haveWAL := walVersion != wal.WALNotExist
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if haveWAL && walVersion != wal.WALv0_5 {
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err := UpgradeWAL(cfg, walVersion)
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if err != nil {
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return nil, err
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}
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}
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ss := snap.New(cfg.SnapDir())
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switch {
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case !haveWAL && !cfg.NewCluster:
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@ -237,6 +215,12 @@ func NewServer(cfg *ServerConfig) (*EtcdServer, error) {
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cfg.PrintWithInitial()
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id, n, s, w = startNode(cfg, cfg.Cluster.MemberIDs())
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case haveWAL:
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if walVersion != wal.WALv0_5 {
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if err := UpgradeWAL(cfg, walVersion); err != nil {
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return nil, err
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}
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}
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if cfg.ShouldDiscover() {
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log.Printf("etcdserver: discovery token ignored since a cluster has already been initialized. Valid log found at %q", cfg.WALDir())
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}
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@ -1,6 +1,9 @@
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package etcdserver
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import (
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"log"
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"github.com/coreos/etcd/migrate"
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"github.com/coreos/etcd/raft/raftpb"
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"github.com/coreos/etcd/snap"
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"github.com/coreos/etcd/wal"
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@ -43,3 +46,17 @@ func (st *storage) SaveSnap(snap raftpb.Snapshot) error {
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}
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return nil
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}
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// UpgradeWAL converts an older version of the etcdServer data to the newest version.
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// It must ensure that, after upgrading, the most recent version is present.
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func UpgradeWAL(cfg *ServerConfig, ver wal.WalVersion) error {
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if ver == wal.WALv0_4 {
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log.Print("etcdserver: converting v0.4 log to v2.0")
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err := migrate.Migrate4To2(cfg.DataDir, cfg.Name)
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if err != nil {
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log.Fatalf("etcdserver: failed migrating data-dir: %v", err)
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return err
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}
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}
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return nil
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}
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