func (ss *Storageserver) GetServers(args *storageproto.GetServersArgs, reply *storageproto.RegisterReply) error {
	if ss.cntnodes < ss.numnodes {
		reply.Ready = false
	} else {
		reply.Ready = true
		reply.Servers = ss.servers
	}
	return nil
}
// Non-master servers to the master
func (ss *Storageserver) RegisterServer(args *storageproto.RegisterArgs, reply *storageproto.RegisterReply) error {
	lsplog.Vlogf(5, "Connected:", args.ServerInfo.NodeID)
	ss.serverListLock.Lock()
	if ss.cntnodes < ss.numnodes {
		ss.servers[ss.cntnodes] = args.ServerInfo
		ss.cntnodes += 1
	}

	if ss.cntnodes == ss.numnodes {
		lsplog.Vlogf(5, "Ready")
		reply.Ready = true
		reply.Servers = ss.servers
	}
	ss.serverListLock.Unlock()
	return nil
}