func (n *Node) restoreFromSnapshot(data []byte, forceNewCluster bool) error {
var snapshot api.Snapshot
if err := snapshot.Unmarshal(data); err != nil {
return err
}
if snapshot.Version != api.Snapshot_V0 {
return fmt.Errorf("unrecognized snapshot version %d", snapshot.Version)
}
if err := n.memoryStore.Restore(&snapshot.Store); err != nil {
return err
}
n.cluster.Clear()
if !forceNewCluster {
for _, member := range snapshot.Membership.Members {
if err := n.registerNode(&api.RaftMember{RaftID: member.RaftID, NodeID: member.NodeID, Addr: member.Addr}); err != nil {
return err
}
}
}
for _, removedMember := range snapshot.Membership.Removed {
n.cluster.RemoveMember(removedMember)
}
return nil
}
func (n *Node) clusterSnapshot(data []byte) (api.ClusterSnapshot, error) {
var snapshot api.Snapshot
if err := snapshot.Unmarshal(data); err != nil {
return snapshot.Membership, err
}
if snapshot.Version != api.Snapshot_V0 {
return snapshot.Membership, fmt.Errorf("unrecognized snapshot version %d", snapshot.Version)
}
if err := n.memoryStore.Restore(&snapshot.Store); err != nil {
return snapshot.Membership, err
}
return snapshot.Membership, nil
}