func rebuildStoreV2() store.Store {
waldir := migrateWALdir
if len(waldir) == 0 {
waldir = path.Join(migrateDatadir, "member", "wal")
}
snapdir := path.Join(migrateDatadir, "member", "snap")
ss := snap.New(snapdir)
snapshot, err := ss.Load()
if err != nil && err != snap.ErrNoSnapshot {
ExitWithError(ExitError, err)
}
var walsnap walpb.Snapshot
if snapshot != nil {
walsnap.Index, walsnap.Term = snapshot.Metadata.Index, snapshot.Metadata.Term
}
w, err := wal.OpenForRead(waldir, walsnap)
if err != nil {
ExitWithError(ExitError, err)
}
defer w.Close()
_, _, ents, err := w.ReadAll()
if err != nil {
ExitWithError(ExitError, err)
}
st := store.New()
if snapshot != nil {
err := st.Recovery(snapshot.Data)
if err != nil {
ExitWithError(ExitError, err)
}
}
applier := etcdserver.NewApplierV2(st, nil)
for _, ent := range ents {
if ent.Type != raftpb.EntryNormal {
continue
}
var raftReq pb.InternalRaftRequest
if !pbutil.MaybeUnmarshal(&raftReq, ent.Data) { // backward compatible
var r pb.Request
pbutil.MustUnmarshal(&r, ent.Data)
applyRequest(&r, applier)
} else {
if raftReq.V2 != nil {
req := raftReq.V2
applyRequest(req, applier)
}
}
}
return st
}
func rebuild(datadir string) ([]byte, *raftpb.HardState, store.Store, error) {
waldir := path.Join(datadir, "member", "wal")
snapdir := path.Join(datadir, "member", "snap")
ss := snap.New(snapdir)
snapshot, err := ss.Load()
if err != nil && err != snap.ErrNoSnapshot {
return nil, nil, nil, err
}
var walsnap walpb.Snapshot
if snapshot != nil {
walsnap.Index, walsnap.Term = snapshot.Metadata.Index, snapshot.Metadata.Term
}
w, err := wal.OpenForRead(waldir, walsnap)
if err != nil {
return nil, nil, nil, err
}
defer w.Close()
meta, hardstate, ents, err := w.ReadAll()
if err != nil {
return nil, nil, nil, err
}
st := store.New(etcdserver.StoreClusterPrefix, etcdserver.StoreKeysPrefix)
if snapshot != nil {
err := st.Recovery(snapshot.Data)
if err != nil {
return nil, nil, nil, err
}
}
cluster := membership.NewCluster("")
cluster.SetStore(st)
cluster.Recover(func(*semver.Version) {})
applier := etcdserver.NewApplierV2(st, cluster)
for _, ent := range ents {
if ent.Type == raftpb.EntryConfChange {
var cc raftpb.ConfChange
pbutil.MustUnmarshal(&cc, ent.Data)
switch cc.Type {
case raftpb.ConfChangeAddNode:
m := new(membership.Member)
if err := json.Unmarshal(cc.Context, m); err != nil {
return nil, nil, nil, err
}
cluster.AddMember(m)
case raftpb.ConfChangeRemoveNode:
id := types.ID(cc.NodeID)
cluster.RemoveMember(id)
case raftpb.ConfChangeUpdateNode:
m := new(membership.Member)
if err := json.Unmarshal(cc.Context, m); err != nil {
return nil, nil, nil, err
}
cluster.UpdateRaftAttributes(m.ID, m.RaftAttributes)
}
continue
}
var raftReq pb.InternalRaftRequest
if !pbutil.MaybeUnmarshal(&raftReq, ent.Data) { // backward compatible
var r pb.Request
pbutil.MustUnmarshal(&r, ent.Data)
applyRequest(&r, applier)
} else {
if raftReq.V2 != nil {
req := raftReq.V2
applyRequest(req, applier)
}
}
}
return meta, &hardstate, st, nil
}
func rebuildStoreV2() (store.Store, uint64) {
var index uint64
cl := membership.NewCluster("")
waldir := migrateWALdir
if len(waldir) == 0 {
waldir = path.Join(migrateDatadir, "member", "wal")
}
snapdir := path.Join(migrateDatadir, "member", "snap")
ss := snap.New(snapdir)
snapshot, err := ss.Load()
if err != nil && err != snap.ErrNoSnapshot {
ExitWithError(ExitError, err)
}
var walsnap walpb.Snapshot
if snapshot != nil {
walsnap.Index, walsnap.Term = snapshot.Metadata.Index, snapshot.Metadata.Term
index = snapshot.Metadata.Index
}
w, err := wal.OpenForRead(waldir, walsnap)
if err != nil {
ExitWithError(ExitError, err)
}
defer w.Close()
_, _, ents, err := w.ReadAll()
if err != nil {
ExitWithError(ExitError, err)
}
st := store.New()
if snapshot != nil {
err := st.Recovery(snapshot.Data)
if err != nil {
ExitWithError(ExitError, err)
}
}
cl.SetStore(st)
cl.Recover(api.UpdateCapability)
applier := etcdserver.NewApplierV2(st, cl)
for _, ent := range ents {
if ent.Type == raftpb.EntryConfChange {
var cc raftpb.ConfChange
pbutil.MustUnmarshal(&cc, ent.Data)
applyConf(cc, cl)
continue
}
var raftReq pb.InternalRaftRequest
if !pbutil.MaybeUnmarshal(&raftReq, ent.Data) { // backward compatible
var r pb.Request
pbutil.MustUnmarshal(&r, ent.Data)
applyRequest(&r, applier)
} else {
if raftReq.V2 != nil {
req := raftReq.V2
applyRequest(req, applier)
}
}
if ent.Index > index {
index = ent.Index
}
}
return st, index
}