func rollBackVolumeCreate(c transaction.TxnCtx) error {
var vol volume.Volinfo
e := c.Get("volinfo", &vol)
if e != nil {
return errors.New("failed to get volinfo from context")
}
_ = volume.RemoveBrickPaths(vol.Bricks)
return nil
}
func aggregateVolumeStatus(ctx transaction.TxnCtx, nodes []uuid.UUID) (*volume.VolStatus, error) {
var brickStatuses []brick.Brickstatus
// Loop over each node on which txn was run.
// Fetch brick statuses stored by each node in transaction context.
for _, node := range nodes {
var tmp []brick.Brickstatus
err := ctx.GetNodeResult(node, brickStatusTxnKey, &tmp)
if err != nil {
return nil, goerrors.New("aggregateVolumeStatus: Could not fetch results from transaction context.")
}
brickStatuses = append(brickStatuses, tmp...)
}
v := &volume.VolStatus{Brickstatuses: brickStatuses}
return v, nil
}
func generateVolfiles(c transaction.TxnCtx) error {
var vol volume.Volinfo
e := c.Get("volinfo", &vol)
if e != nil {
return errors.New("failed to get volinfo from context")
}
// Creating client and server volfile
e = volgen.GenerateVolfileFunc(&vol)
if e != nil {
c.Logger().WithFields(log.Fields{"error": e.Error(),
"volume": vol.Name,
}).Error("failed to generate volfile")
return e
}
return nil
}
func storeVolume(c transaction.TxnCtx) error {
var vol volume.Volinfo
e := c.Get("volinfo", &vol)
if e != nil {
return errors.New("failed to get volinfo from context")
}
e = volume.AddOrUpdateVolumeFunc(&vol)
if e != nil {
c.Logger().WithFields(log.Fields{"error": e.Error(),
"volume": vol.Name,
}).Error("Failed to create volume")
return e
}
log.WithField("volume", vol.Name).Debug("new volume added")
return nil
}
func validateVolumeCreate(c transaction.TxnCtx) error {
var req volume.VolCreateRequest
err := c.Get("req", &req)
if err != nil {
return err
}
var vol volume.Volinfo
err = c.Get("volinfo", &vol)
if err != nil {
return err
}
// FIXME: Return values of this function are inconsistent and unused
_, err = volume.ValidateBrickEntriesFunc(vol.Bricks, vol.ID, req.Force)
if err != nil {
return err
}
return nil
}
func checkStatus(ctx transaction.TxnCtx) error {
var volname string
if err := ctx.Get("volname", &volname); err != nil {
ctx.Logger().WithFields(log.Fields{
"error": err,
"key": "volname",
}).Error("checkStatus: Failed to get key from transaction context.")
return err
}
vol, err := volume.GetVolume(volname)
if err != nil {
ctx.Logger().WithFields(log.Fields{
"error": err,
"key": "volname",
}).Error("checkStatus: Failed to get volume information from store.")
return err
}
var brickStatuses []*brick.Brickstatus
for _, binfo := range vol.Bricks {
// Skip bricks that aren't on this node.
// TODO: Rename Brickinfo field 'ID' to 'NodeUUID'
if uuid.Equal(binfo.ID, gdctx.MyUUID) == false {
continue
}
// TODO: Check actual brick status when we get them running.
fakeStatus := &brick.Brickstatus{
Hostname: binfo.Hostname,
Path: binfo.Path,
ID: binfo.ID,
Online: false,
Pid: 1234,
}
brickStatuses = append(brickStatuses, fakeStatus)
}
// Store the results in transaction context. This will be consumed by
// the node that initiated the transaction.
ctx.SetNodeResult(gdctx.MyUUID, brickStatusTxnKey, brickStatuses)
return nil
}
func undoStartBricks(c transaction.TxnCtx) error {
var volname string
if e := c.Get("volname", &volname); e != nil {
c.Logger().WithFields(log.Fields{
"error": e,
"key": "volname",
}).Error("failed to get value for key from context")
return e
}
vol, e := volume.GetVolume(volname)
if e != nil {
// this shouldn't happen
c.Logger().WithFields(log.Fields{
"error": e,
"volname": volname,
}).Error("failed to get volinfo for volume")
return e
}
for _, b := range vol.Bricks {
if uuid.Equal(b.ID, gdctx.MyUUID) {
c.Logger().WithFields(log.Fields{
"volume": volname,
"brick": b.Hostname + ":" + b.Path,
}).Info("volume start failed, stopping bricks")
//TODO: Stop started brick processes once the daemon management package is ready
brickDaemon, err := brick.NewDaemon(vol.Name, b)
if err != nil {
return err
}
err = daemon.Stop(brickDaemon, true)
if err != nil {
return err
}
}
}
return nil
}
func stopBricks(c transaction.TxnCtx) error {
var volname string
if e := c.Get("volname", &volname); e != nil {
c.Logger().WithFields(log.Fields{
"error": e,
"key": "volname",
}).Error("failed to get value for key from context")
return e
}
vol, e := volume.GetVolume(volname)
if e != nil {
// this shouldn't happen
c.Logger().WithFields(log.Fields{
"error": e,
"volname": volname,
}).Error("failed to get volinfo for volume")
return e
}
for _, b := range vol.Bricks {
if uuid.Equal(b.ID, gdctx.MyUUID) {
c.Logger().WithFields(log.Fields{
"volume": volname,
"brick": b.Hostname + ":" + b.Path,
}).Info("would stop brick")
brickDaemon, err := brick.NewDaemon(vol.Name, b)
if err != nil {
return err
}
err = daemon.Stop(brickDaemon, false)
if err != nil {
return err
}
}
}
return nil
}