func (b *BrickEntry) DestroyCheck(db *bolt.DB, executor executors.Executor) error {
godbc.Require(db != nil)
godbc.Require(b.TpSize > 0)
godbc.Require(b.Info.Size > 0)
// Get node hostname
var host string
err := db.View(func(tx *bolt.Tx) error {
node, err := NewNodeEntryFromId(tx, b.Info.NodeId)
if err != nil {
return err
}
host = node.ManageHostName()
godbc.Check(host != "")
return nil
})
if err != nil {
return err
}
// Create request
req := &executors.BrickRequest{}
req.Name = b.Info.Id
req.Size = b.Info.Size
req.TpSize = b.TpSize
req.VgId = b.Info.DeviceId
// Check brick on node
return executor.BrickDestroyCheck(host, req)
}
func (b *BrickEntry) Destroy(db *bolt.DB, executor executors.Executor) error {
godbc.Require(db != nil)
godbc.Require(b.TpSize > 0)
godbc.Require(b.Info.Size > 0)
if b.State != BRICK_STATE_ONLINE {
return nil
}
// Get node hostname
var host string
err := db.View(func(tx *bolt.Tx) error {
node, err := NewNodeEntryFromId(tx, b.Info.NodeId)
if err != nil {
return err
}
host = node.ManageHostName()
godbc.Check(host != "")
return nil
})
if err != nil {
return err
}
// Create request
req := &executors.BrickRequest{}
req.Name = b.Info.Id
req.Size = b.Info.Size
req.TpSize = b.TpSize
req.VgId = b.Info.DeviceId
// Delete brick on node
logger.Info("Deleting brick %v", b.Info.Id)
err = executor.BrickDestroy(host, req)
if err != nil {
b.State = BRICK_STATE_FAILED
return err
}
b.State = BRICK_STATE_DELETED
godbc.Ensure(b.State == BRICK_STATE_DELETED)
return nil
}
func (b *BrickEntry) Create(db *bolt.DB, executor executors.Executor) error {
godbc.Require(db != nil)
godbc.Require(b.TpSize > 0)
godbc.Require(b.Info.Size > 0)
// Get node hostname
var host string
err := db.View(func(tx *bolt.Tx) error {
node, err := NewNodeEntryFromId(tx, b.Info.NodeId)
if err != nil {
return err
}
host = node.ManageHostName()
godbc.Check(host != "")
return nil
})
if err != nil {
return err
}
// Create request
req := &executors.BrickRequest{}
req.Name = b.Info.Id
req.Size = b.Info.Size
req.TpSize = b.TpSize
req.VgId = b.Info.DeviceId
req.PoolMetadataSize = b.PoolMetadataSize
// Create brick on node
logger.Info("Creating brick %v", b.Info.Id)
info, err := executor.BrickCreate(host, req)
if err != nil {
return err
}
b.Info.Path = info.Path
b.State = BRICK_STATE_ONLINE
godbc.Ensure(b.Info.Path != "")
godbc.Ensure(b.State == BRICK_STATE_ONLINE)
return nil
}
func (v *VolumeEntry) createVolume(db *bolt.DB,
executor executors.Executor,
brick_entries []*BrickEntry) error {
godbc.Require(db != nil)
godbc.Require(brick_entries != nil)
// Create a volume request for executor with
// the bricks allocated
vr, host, err := v.createVolumeRequest(db, brick_entries)
if err != nil {
return err
}
// Create the volume
_, err = executor.VolumeCreate(host, vr)
if err != nil {
return err
}
// Get all brick hosts
stringset := utils.NewStringSet()
for _, brick := range vr.Bricks {
stringset.Add(brick.Host)
}
hosts := stringset.Strings()
v.Info.Mount.GlusterFS.Hosts = hosts
// Save volume information
v.Info.Mount.GlusterFS.MountPoint = fmt.Sprintf("%v:%v",
hosts[0], vr.Name)
// Set glusterfs mount volfile-servers options
v.Info.Mount.GlusterFS.Options = make(map[string]string)
v.Info.Mount.GlusterFS.Options["backup-volfile-servers"] =
strings.Join(hosts[1:], ",")
godbc.Ensure(v.Info.Mount.GlusterFS.MountPoint != "")
return nil
}
func (v *VolumeEntry) Expand(db *bolt.DB,
executor executors.Executor,
allocator Allocator,
sizeGB int) (e error) {
// Allocate new bricks in the cluster
brick_entries, err := v.allocBricksInCluster(db, allocator, v.Info.Cluster, sizeGB)
if err != nil {
return err
}
// Setup cleanup function
defer func() {
if e != nil {
logger.Debug("Error detected, cleaning up")
// Remove from db
db.Update(func(tx *bolt.Tx) error {
for _, brick := range brick_entries {
v.removeBrickFromDb(tx, brick)
}
err := v.Save(tx)
godbc.Check(err == nil)
return nil
})
}
}()
// Create bricks
err = CreateBricks(db, executor, brick_entries)
if err != nil {
logger.Err(err)
return err
}
// Setup cleanup function
defer func() {
if e != nil {
logger.Debug("Error detected, cleaning up")
DestroyBricks(db, executor, brick_entries)
}
}()
// Create a volume request to send to executor
// so that it can add the new bricks
vr, host, err := v.createVolumeRequest(db, brick_entries)
if err != nil {
return err
}
// Expand the volume
_, err = executor.VolumeExpand(host, vr)
if err != nil {
return err
}
// Increase the recorded volume size
v.Info.Size += sizeGB
// Save volume entry
err = db.Update(func(tx *bolt.Tx) error {
// Save brick entries
for _, brick := range brick_entries {
err := brick.Save(tx)
if err != nil {
return err
}
}
return v.Save(tx)
})
return err
}
func (v *VolumeEntry) Destroy(db *bolt.DB, executor executors.Executor) error {
logger.Info("Destroying volume %v", v.Info.Id)
// Get the entries from the database
brick_entries := make([]*BrickEntry, len(v.Bricks))
var sshhost string
db.View(func(tx *bolt.Tx) error {
for index, id := range v.BricksIds() {
brick, err := NewBrickEntryFromId(tx, id)
if err != nil {
logger.LogError("Brick %v not found in db: %v", id, err)
continue
}
brick_entries[index] = brick
// Set ssh host to send volume commands
if sshhost == "" {
node, err := NewNodeEntryFromId(tx, brick.Info.NodeId)
if err != nil {
logger.LogError("Unable to determine brick node: %v", err)
return err
}
sshhost = node.ManageHostName()
}
}
return nil
})
// :TODO: What if the host is no longer available, we may need to try others
// Stop volume
err := executor.VolumeDestroy(sshhost, v.Info.Name)
if err != nil {
logger.LogError("Unable to delete volume: %v", err)
return err
}
// Destroy bricks
err = DestroyBricks(db, executor, brick_entries)
if err != nil {
logger.LogError("Unable to delete bricks: %v", err)
return err
}
// Remove from entries from the db
err = db.Update(func(tx *bolt.Tx) error {
for _, brick := range brick_entries {
err = v.removeBrickFromDb(tx, brick)
if err != nil {
logger.Err(err)
// Everything is destroyed anyways, just keep deleting the others
// Do not return here
}
}
// Remove volume from cluster
cluster, err := NewClusterEntryFromId(tx, v.Info.Cluster)
if err != nil {
logger.Err(err)
// Do not return here.. keep going
}
cluster.VolumeDelete(v.Info.Id)
err = cluster.Save(tx)
if err != nil {
logger.Err(err)
// Do not return here.. keep going
}
// Delete volume
v.Delete(tx)
return nil
})
return err
}