Esempio n. 1
0
func (vg *VolumeGrowth) grow(topo *topology.Topology, vid storage.VolumeId, repType storage.ReplicationType, servers ...*topology.DataNode) error {
	for _, server := range servers {
		if err := operation.AllocateVolume(server, vid, repType); err == nil {
			vi := storage.VolumeInfo{Id: vid, Size: 0, RepType: repType}
			server.AddOrUpdateVolume(vi)
			topo.RegisterVolumeLayout(&vi, server)
			fmt.Println("Created Volume", vid, "on", server)
		} else {
			fmt.Println("Failed to assign", vid, "to", servers)
			return errors.New("Failed to assign " + vid.String())
		}
	}
	return nil
}
Esempio n. 2
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func vacuumVolume_Commit(urlLocation string, vid storage.VolumeId) error {
	values := make(url.Values)
	values.Add("volume", vid.String())
	jsonBlob, err := util.Post("http://"+urlLocation+"/admin/vacuum_volume_commit", values)
	if err != nil {
		return err
	}
	var ret VacuumVolumeResult
	if err := json.Unmarshal(jsonBlob, &ret); err != nil {
		return err
	}
	if ret.Error != "" {
		return errors.New(ret.Error)
	}
	return nil
}
Esempio n. 3
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//TODO: Add a caching for vid here
func Lookup(server string, vid storage.VolumeId) (*LookupResult, error) {
	values := make(url.Values)
	values.Add("volumeId", vid.String())
	jsonBlob, err := util.Post("http://"+server+"/dir/lookup", values)
	if err != nil {
		return nil, err
	}
	var ret LookupResult
	err = json.Unmarshal(jsonBlob, &ret)
	if err != nil {
		return nil, err
	}
	if ret.Error != "" {
		return nil, errors.New(ret.Error)
	}
	return &ret, nil
}
Esempio n. 4
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func AllocateVolume(dn *topology.DataNode, vid storage.VolumeId, repType storage.ReplicationType) error {
	values := make(url.Values)
	values.Add("volume", vid.String())
	values.Add("replicationType", repType.String())
	jsonBlob, err := util.Post("http://"+dn.Url()+"/admin/assign_volume", values)
	if err != nil {
		return err
	}
	var ret AllocateVolumeResult
	if err := json.Unmarshal(jsonBlob, &ret); err != nil {
		return err
	}
	if ret.Error != "" {
		return errors.New(ret.Error)
	}
	return nil
}