Esempio n. 1
0
func (g *group) applyConfChange(e raftpb.Entry) error {
	var cc raftpb.ConfChange
	pbutil.MustUnmarshal(&cc, e.Data)
	glog.V(2).Infof("%v applies conf change %v: %#v", g, e.Index, cc)

	if len(cc.Context) == 0 {
		g.stateMachine.ApplyConfChange(cc, GroupNode{})
		return nil
	}

	if id, req, err := g.node.decReq(cc.Context); err == nil {
		if gn, ok := req.Data.(GroupNode); ok {
			res := Response{ID: id}
			res.Err = g.stateMachine.ApplyConfChange(cc, gn)
			g.node.line.call(res)
			return nil
		}
	}

	var gn GroupNode
	if err := bhgob.Decode(&gn, cc.Context); err != nil {
		glog.Fatalf("%v cannot decode config change: %v", g, err)
	}

	if gn.Node != cc.NodeID {
		glog.Fatalf("invalid config change: %v != %v", gn.Node, cc.NodeID)
	}
	g.stateMachine.ApplyConfChange(cc, gn)
	return nil
}
Esempio n. 2
0
func (r *registry) Restore(b []byte) error {
	r.m.Lock()
	defer r.m.Unlock()
	glog.V(2).Info("registry restored")
	return bhgob.Decode(r, b)
}