def _create(cls,
dom,
imgUUID,
volUUID,
size,
volFormat,
preallocate,
volParent,
srcImgUUID,
srcVolUUID,
volPath,
initialSize=None):
"""
Class specific implementation of volumeCreate. All the exceptions are
properly handled and logged in volume.create()
"""
if initialSize:
cls.log.error("initialSize is not supported for file-based "
"volumes")
raise se.InvalidParameterException("initial size", initialSize)
sizeBytes = size * BLOCK_SIZE
truncSize = sizeBytes if volFormat == volume.RAW_FORMAT else 0
try:
oop.getProcessPool(dom.sdUUID).truncateFile(
volPath, truncSize, mode=VOLUME_PERMISSIONS, creatExcl=True)
except OSError as e:
if e.errno == errno.EEXIST:
raise se.VolumeAlreadyExists(volUUID)
raise
if preallocate == volume.PREALLOCATED_VOL:
try:
# ddWatchCopy expects size to be in bytes
misc.ddWatchCopy("/dev/zero", volPath, vars.task.aborting,
sizeBytes)
except ActionStopped:
raise
except Exception:
cls.log.error("Unexpected error", exc_info=True)
raise se.VolumesZeroingError(volPath)
if not volParent:
cls.log.info(
"Request to create %s volume %s with size = %s "
"sectors", volume.type2name(volFormat), volPath, size)
if volFormat == volume.COW_FORMAT:
qemuimg.create(volPath, sizeBytes, volume.fmt2str(volFormat))
else:
# Create hardlink to template and its meta file
cls.log.info("Request to create snapshot %s/%s of volume %s/%s",
imgUUID, volUUID, srcImgUUID, srcVolUUID)
volParent.clone(volPath, volFormat)
# Forcing the volume permissions in case one of the tools we use
# (dd, qemu-img, etc.) will mistakenly change the file permissiosn.
dom.oop.os.chmod(volPath, VOLUME_PERMISSIONS)
return (volPath, )
def _interImagesCopy(self, destDom, srcSdUUID, imgUUID, chains):
srcLeafVol = chains['srcChain'][-1]
dstLeafVol = chains['dstChain'][-1]
try:
# Prepare the whole chains before the copy
srcLeafVol.prepare(rw=False)
dstLeafVol.prepare(rw=True, chainrw=True, setrw=True)
except Exception:
self.log.error("Unexpected error", exc_info=True)
# teardown volumes
self.__cleanupMove(srcLeafVol, dstLeafVol)
raise
try:
for srcVol in chains['srcChain']:
# Do the actual copy
try:
dstVol = destDom.produceVolume(imgUUID=imgUUID,
volUUID=srcVol.volUUID)
srcFmt = srcVol.getFormat()
if srcFmt == volume.RAW_FORMAT:
srcFmtStr = volume.fmt2str(srcFmt)
dstFmtStr = volume.fmt2str(dstVol.getFormat())
self.log.debug("start qemu convert")
qemuImg.convert(srcVol.getVolumePath(),
dstVol.getVolumePath(),
vars.task.aborting,
srcFmtStr, dstFmtStr)
else:
srcSize = srcVol.getVolumeSize(bs=1)
misc.ddWatchCopy(srcVol.getVolumePath(),
dstVol.getVolumePath(),
vars.task.aborting,
size=srcSize)
except ActionStopped:
raise
except se.StorageException:
self.log.error("Unexpected error", exc_info=True)
raise
except Exception:
self.log.error("Copy image error: image=%s, src domain=%s,"
" dst domain=%s", imgUUID, srcSdUUID,
destDom.sdUUID, exc_info=True)
raise se.CopyImageError()
finally:
# teardown volumes
self.__cleanupMove(srcLeafVol, dstLeafVol)
def _create(
cls,
dom,
imgUUID,
volUUID,
size,
volFormat,
preallocate,
volParent,
srcImgUUID,
srcVolUUID,
volPath,
initialSize=None,
):
"""
Class specific implementation of volumeCreate. All the exceptions are
properly handled and logged in volume.create()
"""
if initialSize:
cls.log.error("initialSize is not supported for file-based " "volumes")
raise se.InvalidParameterException("initial size", initialSize)
sizeBytes = size * BLOCK_SIZE
truncSize = sizeBytes if volFormat == volume.RAW_FORMAT else 0
try:
oop.getProcessPool(dom.sdUUID).truncateFile(volPath, truncSize, mode=VOLUME_PERMISSIONS, creatExcl=True)
except OSError as e:
if e.errno == errno.EEXIST:
raise se.VolumeAlreadyExists(volUUID)
raise
if preallocate == volume.PREALLOCATED_VOL:
try:
# ddWatchCopy expects size to be in bytes
misc.ddWatchCopy("/dev/zero", volPath, vars.task.aborting, sizeBytes)
except ActionStopped:
raise
except Exception:
cls.log.error("Unexpected error", exc_info=True)
raise se.VolumesZeroingError(volPath)
if not volParent:
cls.log.info(
"Request to create %s volume %s with size = %s " "sectors", volume.type2name(volFormat), volPath, size
)
if volFormat == volume.COW_FORMAT:
qemuimg.create(volPath, sizeBytes, volume.fmt2str(volFormat))
else:
# Create hardlink to template and its meta file
cls.log.info("Request to create snapshot %s/%s of volume %s/%s", imgUUID, volUUID, srcImgUUID, srcVolUUID)
volParent.clone(volPath, volFormat)
# Forcing the volume permissions in case one of the tools we use
# (dd, qemu-img, etc.) will mistakenly change the file permissiosn.
dom.oop.os.chmod(volPath, VOLUME_PERMISSIONS)
return (volPath,)
def _create(cls, dom, imgUUID, volUUID, size, volFormat, preallocate,
volParent, srcImgUUID, srcVolUUID, volPath):
"""
Class specific implementation of volumeCreate. All the exceptions are
properly handled and logged in volume.create()
"""
if preallocate == volume.SPARSE_VOL:
volSize = "%s" % config.get("irs", "volume_utilization_chunk_mb")
else:
volSize = "%s" % ((size + SECTORS_TO_MB - 1) / SECTORS_TO_MB)
lvm.createLV(dom.sdUUID,
volUUID,
volSize,
activate=True,
initialTag=TAG_VOL_UNINIT)
utils.rmFile(volPath)
os.symlink(lvm.lvPath(dom.sdUUID, volUUID), volPath)
if not volParent:
cls.log.info(
"Request to create %s volume %s with size = %s "
"sectors", volume.type2name(volFormat), volPath, size)
if volFormat == volume.COW_FORMAT:
qemuimg.create(volPath, size * BLOCK_SIZE,
volume.fmt2str(volFormat))
else:
# Create hardlink to template and its meta file
cls.log.info("Request to create snapshot %s/%s of volume %s/%s",
imgUUID, volUUID, srcImgUUID, srcVolUUID)
volParent.clone(volPath, volFormat)
with cls._tagCreateLock:
mdSlot = dom.getVolumeMetadataSlot(volUUID, VOLUME_MDNUMBLKS)
mdTags = [
"%s%s" % (TAG_PREFIX_MD, mdSlot),
"%s%s" % (TAG_PREFIX_PARENT, srcVolUUID),
"%s%s" % (TAG_PREFIX_IMAGE, imgUUID)
]
lvm.changeLVTags(dom.sdUUID,
volUUID,
delTags=[TAG_VOL_UNINIT],
addTags=mdTags)
try:
lvm.deactivateLVs(dom.sdUUID, volUUID)
except se.CannotDeactivateLogicalVolume:
cls.log.warn("Cannot deactivate new created volume %s/%s",
dom.sdUUID,
volUUID,
exc_info=True)
return (dom.sdUUID, mdSlot)
def _create(cls, dom, imgUUID, volUUID, size, volFormat, preallocate,
volParent, srcImgUUID, srcVolUUID, volPath):
"""
Class specific implementation of volumeCreate. All the exceptions are
properly handled and logged in volume.create()
"""
if preallocate == volume.SPARSE_VOL:
volSize = "%s" % config.get("irs", "volume_utilization_chunk_mb")
else:
volSize = "%s" % ((size + SECTORS_TO_MB - 1) / SECTORS_TO_MB)
lvm.createLV(dom.sdUUID, volUUID, volSize, activate=True,
initialTag=TAG_VOL_UNINIT)
utils.rmFile(volPath)
os.symlink(lvm.lvPath(dom.sdUUID, volUUID), volPath)
if not volParent:
cls.log.info("Request to create %s volume %s with size = %s "
"sectors", volume.type2name(volFormat), volPath,
size)
if volFormat == volume.COW_FORMAT:
qemuimg.create(
volPath, size * BLOCK_SIZE, volume.fmt2str(volFormat))
else:
# Create hardlink to template and its meta file
cls.log.info("Request to create snapshot %s/%s of volume %s/%s",
imgUUID, volUUID, srcImgUUID, srcVolUUID)
volParent.clone(volPath, volFormat)
with cls._tagCreateLock:
mdSlot = dom.getVolumeMetadataSlot(volUUID, VOLUME_MDNUMBLKS)
mdTags = ["%s%s" % (TAG_PREFIX_MD, mdSlot),
"%s%s" % (TAG_PREFIX_PARENT, srcVolUUID),
"%s%s" % (TAG_PREFIX_IMAGE, imgUUID)]
lvm.changeLVTags(dom.sdUUID, volUUID, delTags=[TAG_VOL_UNINIT],
addTags=mdTags)
try:
lvm.deactivateLVs(dom.sdUUID, volUUID)
except se.CannotDeactivateLogicalVolume:
cls.log.warn("Cannot deactivate new created volume %s/%s",
dom.sdUUID, volUUID, exc_info=True)
return (dom.sdUUID, mdSlot)
def _create(cls, dom, imgUUID, volUUID, size, volFormat, preallocate,
volParent, srcImgUUID, srcVolUUID, volPath, initialSize=None):
"""
Class specific implementation of volumeCreate. All the exceptions are
properly handled and logged in volume.create()
"""
lvSize = cls._calculate_volume_alloc_size(preallocate,
size, initialSize)
lvm.createLV(dom.sdUUID, volUUID, "%s" % lvSize, activate=True,
initialTag=TAG_VOL_UNINIT)
utils.rmFile(volPath)
os.symlink(lvm.lvPath(dom.sdUUID, volUUID), volPath)
if not volParent:
cls.log.info("Request to create %s volume %s with size = %s "
"sectors", volume.type2name(volFormat), volPath,
size)
if volFormat == volume.COW_FORMAT:
qemuimg.create(
volPath, size * BLOCK_SIZE, volume.fmt2str(volFormat))
else:
# Create hardlink to template and its meta file
cls.log.info("Request to create snapshot %s/%s of volume %s/%s",
imgUUID, volUUID, srcImgUUID, srcVolUUID)
volParent.clone(volPath, volFormat)
with dom.acquireVolumeMetadataSlot(volUUID, VOLUME_MDNUMBLKS) as slot:
mdTags = ["%s%s" % (TAG_PREFIX_MD, slot),
"%s%s" % (TAG_PREFIX_PARENT, srcVolUUID),
"%s%s" % (TAG_PREFIX_IMAGE, imgUUID)]
lvm.changeLVTags(dom.sdUUID, volUUID, delTags=[TAG_VOL_UNINIT],
addTags=mdTags)
try:
lvm.deactivateLVs(dom.sdUUID, volUUID)
except se.CannotDeactivateLogicalVolume:
cls.log.warn("Cannot deactivate new created volume %s/%s",
dom.sdUUID, volUUID, exc_info=True)
return (dom.sdUUID, slot)
def _create(cls,
dom,
imgUUID,
volUUID,
size,
volFormat,
preallocate,
volParent,
srcImgUUID,
srcVolUUID,
volPath,
initialSize=None):
"""
Class specific implementation of volumeCreate. All the exceptions are
properly handled and logged in volume.create()
"""
lvSize = cls._calculate_volume_alloc_size(preallocate, size,
initialSize)
lvm.createLV(dom.sdUUID,
volUUID,
"%s" % lvSize,
activate=True,
initialTag=TAG_VOL_UNINIT)
utils.rmFile(volPath)
os.symlink(lvm.lvPath(dom.sdUUID, volUUID), volPath)
if not volParent:
cls.log.info(
"Request to create %s volume %s with size = %s "
"sectors", volume.type2name(volFormat), volPath, size)
if volFormat == volume.COW_FORMAT:
qemuimg.create(volPath, size * BLOCK_SIZE,
volume.fmt2str(volFormat))
else:
# Create hardlink to template and its meta file
cls.log.info("Request to create snapshot %s/%s of volume %s/%s",
imgUUID, volUUID, srcImgUUID, srcVolUUID)
volParent.clone(volPath, volFormat)
with dom.acquireVolumeMetadataSlot(volUUID, VOLUME_MDNUMBLKS) as slot:
mdTags = [
"%s%s" % (TAG_PREFIX_MD, slot),
"%s%s" % (TAG_PREFIX_PARENT, srcVolUUID),
"%s%s" % (TAG_PREFIX_IMAGE, imgUUID)
]
lvm.changeLVTags(dom.sdUUID,
volUUID,
delTags=[TAG_VOL_UNINIT],
addTags=mdTags)
try:
lvm.deactivateLVs(dom.sdUUID, volUUID)
except se.CannotDeactivateLogicalVolume:
cls.log.warn("Cannot deactivate new created volume %s/%s",
dom.sdUUID,
volUUID,
exc_info=True)
return (dom.sdUUID, slot)