def delete(self, postZero, force):
"""
Delete volume.
'postZero' - zeroing file before deletion
'force' - required to remove shared and internal volumes
"""
self.log.info("Request to delete volume %s", self.volUUID)
vol_path = self.getVolumePath()
if not force:
self.validateDelete()
# Mark volume as illegal before deleting
self.setLegality(volume.ILLEGAL_VOL)
# try to cleanup as much as possible
eFound = se.CannotDeleteVolume(self.volUUID)
puuid = None
try:
# We need to blank parent record in our metadata
# for parent to become leaf successfully.
puuid = self.getParent()
self.setParent(volume.BLANK_UUID)
if puuid and puuid != volume.BLANK_UUID:
pvol = FileVolume(self.repoPath, self.sdUUID, self.imgUUID,
puuid)
pvol.recheckIfLeaf()
except Exception, e:
eFound = e
self.log.warning("cannot finalize parent volume %s",
puuid,
exc_info=True)
def delete(self, postZero, force):
""" Delete volume
'postZero' - zeroing file before deletion
'force' is required to remove shared and internal volumes
"""
self.log.info("Request to delete LV %s of image %s in VG %s ",
self.volUUID, self.imgUUID, self.sdUUID)
vol_path = self.getVolumePath()
size = self.getVolumeSize(bs=1)
offs = self.getMetaOffset()
# On block storage domains we store a volume's parent UUID in two
# places: 1) in the domain's metadata LV, and 2) in a LV tag attached
# to the volume LV itself. The LV tag is more efficient to access
# than the domain metadata but it may only be updated by the SPM.
#
# This means that after a live merge completes the domain metadata LV
# will be updated but the LV tag will not. We can detect this case
# here and fix the LV tag since this is an SPM verb.
#
# File domains do not have this complexity because the metadata is
# stored in only one place and that metadata is updated by the HSM
# host when the live merge finishes.
sync = False
for childID in self.getChildren():
child = BlockVolume(self.repoPath, self.sdUUID, self.imgUUID,
childID)
metaParent = child.getParentMeta()
tagParent = child.getParentTag()
if metaParent != tagParent:
self.log.debug(
"Updating stale PUUID LV tag from %s to %s for "
"volume %s", tagParent, metaParent, child.volUUID)
child.setParentTag(metaParent)
sync = True
if sync:
self.recheckIfLeaf()
if not force:
self.validateDelete()
# Mark volume as illegal before deleting
self.setLegality(volume.ILLEGAL_VOL)
if postZero:
self.prepare(justme=True,
rw=True,
chainrw=force,
setrw=True,
force=True)
try:
misc.ddWatchCopy("/dev/zero", vol_path, vars.task.aborting,
int(size))
except utils.ActionStopped:
raise
except Exception:
self.log.error("Unexpected error", exc_info=True)
raise se.VolumesZeroingError(vol_path)
finally:
self.teardown(self.sdUUID, self.volUUID, justme=True)
# try to cleanup as much as possible
eFound = se.CannotDeleteVolume(self.volUUID)
puuid = None
try:
# We need to blank parent record in our metadata
# for parent to become leaf successfully.
puuid = self.getParent()
self.setParent(volume.BLANK_UUID)
if puuid and puuid != volume.BLANK_UUID:
pvol = BlockVolume(self.repoPath, self.sdUUID, self.imgUUID,
puuid)
pvol.recheckIfLeaf()
except Exception as e:
eFound = e
self.log.warning("cannot finalize parent volume %s",
puuid,
exc_info=True)
try:
try:
lvm.removeLVs(self.sdUUID, self.volUUID)
except se.CannotRemoveLogicalVolume:
# At this point LV is already marked as illegal, we will
# try to cleanup whatever we can...
pass
self.removeMetadata([self.sdUUID, offs])
except Exception as e:
eFound = e
self.log.error("cannot remove volume %s/%s",
self.sdUUID,
self.volUUID,
exc_info=True)
try:
self.log.debug("Unlinking %s", vol_path)
os.unlink(vol_path)
return True
except Exception as e:
eFound = e
self.log.error("cannot delete volume's %s/%s link path: %s",
self.sdUUID,
self.volUUID,
vol_path,
exc_info=True)
raise eFound
def delete(self, postZero, force):
""" Delete volume
'postZero' - zeroing file before deletion
'force' is required to remove shared and internal volumes
"""
self.log.info("Request to delete LV %s of image %s in VG %s ",
self.volUUID, self.imgUUID, self.sdUUID)
vol_path = self.getVolumePath()
size = self.getVolumeSize(bs=1)
offs = self.getMetaOffset()
if not force:
self.validateDelete()
# Mark volume as illegal before deleting
self.setLegality(volume.ILLEGAL_VOL)
if postZero:
self.prepare(justme=True,
rw=True,
chainrw=force,
setrw=True,
force=True)
try:
misc.ddWatchCopy("/dev/zero", vol_path, vars.task.aborting,
int(size))
except utils.ActionStopped:
raise
except Exception:
self.log.error("Unexpected error", exc_info=True)
raise se.VolumesZeroingError(vol_path)
finally:
self.teardown(self.sdUUID, self.volUUID, justme=True)
# try to cleanup as much as possible
eFound = se.CannotDeleteVolume(self.volUUID)
puuid = None
try:
# We need to blank parent record in our metadata
# for parent to become leaf successfully.
puuid = self.getParent()
self.setParent(volume.BLANK_UUID)
if puuid and puuid != volume.BLANK_UUID:
pvol = BlockVolume(self.repoPath, self.sdUUID, self.imgUUID,
puuid)
pvol.recheckIfLeaf()
except Exception as e:
eFound = e
self.log.warning("cannot finalize parent volume %s",
puuid,
exc_info=True)
try:
try:
lvm.removeLVs(self.sdUUID, self.volUUID)
except se.CannotRemoveLogicalVolume:
# At this point LV is already marked as illegal, we will
# try to cleanup whatever we can...
pass
self.removeMetadata([self.sdUUID, offs])
except Exception as e:
eFound = e
self.log.error("cannot remove volume %s/%s",
self.sdUUID,
self.volUUID,
exc_info=True)
try:
self.log.debug("Unlinking %s", vol_path)
os.unlink(vol_path)
return True
except Exception as e:
eFound = e
self.log.error("cannot delete volume's %s/%s link path: %s",
self.sdUUID,
self.volUUID,
vol_path,
exc_info=True)
raise eFound
misc.ddWatchCopy(
"/dev/zero",
vol_path,
vars.task.aborting,
int(size),
recoveryCallback=volume.baseAsyncTasksRollback)
except se.ActionStopped, e:
raise e
except Exception, e:
self.log.error("Unexpected error", exc_info=True)
raise se.VolumesZeroingError(vol_path)
finally:
self.teardown(self.sdUUID, self.volUUID, justme=True)
# try to cleanup as much as possible
eFound = se.CannotDeleteVolume(self.volUUID)
puuid = None
try:
# We need to blank parent record in our metadata
# for parent to become leaf successfully.
puuid = self.getParent()
self.setParent(volume.BLANK_UUID)
if puuid and puuid != volume.BLANK_UUID:
pvol = BlockVolume(self.repoPath, self.sdUUID, self.imgUUID,
puuid)
pvol.recheckIfLeaf()
except Exception, e:
eFound = e
self.log.warning("cannot finalize parent volume %s",
puuid,
exc_info=True)