def test_lv_activate_deactivate(tmp_storage, read_only):
dev_size = 20 * 1024**3
dev = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lv_name = str(uuid.uuid4())
lvm.set_read_only(False)
lvm.createVG(vg_name, [dev], "initial-tag", 128)
lvm.createLV(vg_name, lv_name, 1024, activate=False)
lvm.set_read_only(read_only)
lv = lvm.getLV(vg_name, lv_name)
assert not lv.active
# Activate the inactive lv.
lvm.activateLVs(vg_name, [lv_name])
lv = lvm.getLV(vg_name, lv_name)
assert lv.active
# Deactivate the active lv.
lvm.deactivateLVs(vg_name, [lv_name])
lv = lvm.getLV(vg_name, lv_name)
assert not lv.active
def test_lv_activate_deactivate(tmp_storage, read_only):
dev_size = 20 * GiB
dev = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lv_name = str(uuid.uuid4())
lvm.set_read_only(False)
lvm.createVG(vg_name, [dev], "initial-tag", 128)
lvm.createLV(vg_name, lv_name, 1024, activate=False)
lvm.set_read_only(read_only)
lv = lvm.getLV(vg_name, lv_name)
assert not lv.active
# Activate the inactive lv.
lvm.activateLVs(vg_name, [lv_name])
lv = lvm.getLV(vg_name, lv_name)
assert lv.active
# Deactivate the active lv.
lvm.deactivateLVs(vg_name, [lv_name])
lv = lvm.getLV(vg_name, lv_name)
assert not lv.active
def test_lv_refresh(tmp_storage, read_only):
dev_size = 20 * GiB
dev = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lv_name = str(uuid.uuid4())
lv_fullname = "{}/{}".format(vg_name, lv_name)
lvm.set_read_only(False)
lvm.createVG(vg_name, [dev], "initial-tag", 128)
lvm.createLV(vg_name, lv_name, 1024)
lvm.set_read_only(read_only)
# Simulate extending the LV on the SPM.
commands.run([
"lvextend",
"--config", tmp_storage.lvm_config(),
"-L+1g",
lv_fullname
])
# Refreshing LV invalidates the cache to pick up changes from storage.
lvm.refreshLVs(vg_name, [lv_name])
lv = lvm.getLV(vg_name, lv_name)
assert int(lv.size) == 2 * GiB
# Simulate extending the LV on the SPM.
commands.run([
"lvextend",
"--config", tmp_storage.lvm_config(),
"-L+1g",
lv_fullname
])
# Activate active LV refreshes it.
lvm.activateLVs(vg_name, [lv_name])
lv = lvm.getLV(vg_name, lv_name)
assert int(lv.size) == 3 * GiB
def test_lv_refresh(tmp_storage, read_only):
dev_size = 20 * 1024**3
dev = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lv_name = str(uuid.uuid4())
lv_fullname = "{}/{}".format(vg_name, lv_name)
lvm.set_read_only(False)
lvm.createVG(vg_name, [dev], "initial-tag", 128)
lvm.createLV(vg_name, lv_name, 1024)
lvm.set_read_only(read_only)
# Simulate extending the LV on the SPM.
commands.run([
"lvextend",
"--config", tmp_storage.lvm_config(),
"-L+1g",
lv_fullname
])
# Refreshing LV invalidates the cache to pick up changes from storage.
lvm.refreshLVs(vg_name, [lv_name])
lv = lvm.getLV(vg_name, lv_name)
assert int(lv.size) == 2 * 1024**3
# Simulate extending the LV on the SPM.
commands.run([
"lvextend",
"--config", tmp_storage.lvm_config(),
"-L+1g",
lv_fullname
])
# Activate active LV refreshes it.
lvm.activateLVs(vg_name, [lv_name])
lv = lvm.getLV(vg_name, lv_name)
assert int(lv.size) == 3 * 1024**3
def __init__(self, vg, lv, lockType):
self._vg = vg
self._lv = lv
lvm.activateLVs(self._vg, [self._lv])
def __getResourceCandidatesList(self, resourceName, lockType):
"""
Return list of lock candidates (template and volumes)
"""
# Must be imported here due to import cycles.
# TODO: Move getChain to another module to we can use normal import.
import vdsm.storage.image as image
volResourcesList = []
template = None
dom = sdCache.produce(sdUUID=self.sdUUID)
# Get the list of the volumes
repoPath = os.path.join(sc.REPO_DATA_CENTER, dom.getPools()[0])
try:
chain = image.Image(repoPath).getChain(sdUUID=self.sdUUID,
imgUUID=resourceName)
except se.ImageDoesNotExistInSD:
log.debug("Image %s does not exist in domain %s",
resourceName, self.sdUUID)
return []
# check if the chain is build above a template, or it is a standalone
pvol = chain[0].getParentVolume()
if pvol:
template = pvol.volUUID
elif chain[0].isShared():
# Image of template itself,
# with no other volumes in chain
template = chain[0].volUUID
del chain[:]
volUUIDChain = [vol.volUUID for vol in chain]
volUUIDChain.sort()
# Activate all volumes in chain at once.
# We will attempt to activate all volumes again down to the flow with
# no consequence, since they are already active.
# TODO Fix resource framework to hold images, instead of specific vols.
# This assumes that chains can not spread into more than one SD.
if dom.__class__.__name__ == "BlockStorageDomain":
lvm.activateLVs(self.sdUUID, volUUIDChain)
failed = False
# Acquire template locks:
# - 'lockType' for template's image itself
# - Always 'shared' lock for image based on template
try:
if template:
if len(volUUIDChain) > 0:
volRes = rm.acquireResource(
self.volumeResourcesNamespace,
template, rm.SHARED,
timeout=self.resource_default_timeout)
else:
volRes = rm.acquireResource(
self.volumeResourcesNamespace,
template, lockType,
timeout=self.resource_default_timeout)
volResourcesList.append(volRes)
# Acquire 'lockType' volume locks
for volUUID in volUUIDChain:
volRes = rm.acquireResource(
self.volumeResourcesNamespace,
volUUID, lockType,
timeout=self.resource_default_timeout)
volResourcesList.append(volRes)
except (rm.RequestTimedOutError, se.ResourceAcqusitionFailed) as e:
log.debug("Cannot acquire volume resource (%s)", str(e))
failed = True
raise
except Exception:
log.debug("Cannot acquire volume resource", exc_info=True)
failed = True
raise
finally:
if failed:
# Release already acquired template/volumes locks
for volRes in volResourcesList:
volRes.release()
return volResourcesList
def __init__(self, vg, lv, lockType):
self._vg = vg
self._lv = lv
lvm.activateLVs(self._vg, [self._lv])
def __getResourceCandidatesList(self, resourceName, lockType):
"""
Return list of lock candidates (template and volumes)
"""
volResourcesList = []
template = None
dom = sdCache.produce(sdUUID=self.sdUUID)
# Get the list of the volumes
repoPath = os.path.join(self.storage_repository, dom.getPools()[0])
try:
chain = image.Image(repoPath).getChain(sdUUID=self.sdUUID,
imgUUID=resourceName)
except se.ImageDoesNotExistInSD:
log.debug("Image %s does not exist in domain %s", resourceName,
self.sdUUID)
return []
# check if the chain is build above a template, or it is a standalone
pvol = chain[0].getParentVolume()
if pvol:
template = pvol.volUUID
elif chain[0].isShared():
# Image of template itself,
# with no other volumes in chain
template = chain[0].volUUID
del chain[:]
volUUIDChain = [vol.volUUID for vol in chain]
volUUIDChain.sort()
# Activate all volumes in chain at once.
# We will attempt to activate all volumes again down to the flow with
# no consequence, since they are already active.
# TODO Fix resource framework to hold images, instead of specific vols.
# This assumes that chains can not spread into more than one SD.
if dom.__class__.__name__ == "BlockStorageDomain":
lvm.activateLVs(self.sdUUID, volUUIDChain)
failed = False
# Acquire template locks:
# - 'lockType' for template's image itself
# - Always 'shared' lock for image based on template
try:
if template:
if len(volUUIDChain) > 0:
volRes = rm.acquireResource(
self.volumeResourcesNamespace,
template,
rm.SHARED,
timeout=self.resource_default_timeout)
else:
volRes = rm.acquireResource(
self.volumeResourcesNamespace,
template,
lockType,
timeout=self.resource_default_timeout)
volResourcesList.append(volRes)
# Acquire 'lockType' volume locks
for volUUID in volUUIDChain:
volRes = rm.acquireResource(
self.volumeResourcesNamespace,
volUUID,
lockType,
timeout=self.resource_default_timeout)
volResourcesList.append(volRes)
except (rm.RequestTimedOutError, se.ResourceAcqusitionFailed) as e:
log.debug("Cannot acquire volume resource (%s)", str(e))
failed = True
raise
except Exception:
log.debug("Cannot acquire volume resource", exc_info=True)
failed = True
raise
finally:
if failed:
# Release already acquired template/volumes locks
for volRes in volResourcesList:
volRes.release()
return volResourcesList
