def deactivateVDIs(self, sr, vdis):
if self.srTypes[sr] in ["ext", "nfs"]:
return
lvmCache = lvmcache.LVMCache("%s%s" % (self.VG_PREFIX, sr))
for (vdi, lvName) in vdis:
self.logger.log("Deactivating %s" % lvName, 4)
lvmCache.deactivate("lvm-" + sr, vdi, lvName, False)
def activateChain(self, sr, vdi, parentOnly = True):
"""Activate the LV of the VHD 'vdi' and also all its VHD parents.
Return the list of all the LV's that were activated"""
if self.srTypes[sr] in ["ext", "nfs"]:
return
activated = []
gotParent = False
lvName = self.getFileVDI(sr, vdi)
path = self.getPathVDI(sr, vdi)
lvmCache = lvmcache.LVMCache("%s%s" % (self.VG_PREFIX, sr))
while True:
activated.append((vdi, lvName))
self.logger.log("Activating %s" % lvName, 4)
lvmCache.activate("lvm-" + sr, vdi, lvName, False)
# sometimes on the slave the device is still not created after
# lvchange -ay. We do a forceful refresh here just in case
#cmd = "lvchange --refresh -ay %s" % path
#tutil.execCmd(cmd, 0, self.logger, LOG_LEVEL_SUB)
if parentOnly and gotParent:
break
path = self._getVHDParentNoCheck(sr, path)
if not path:
break
lvName = path.split('/')[-1].replace("--", "-")
vdi = lvName.split("-", 1)[-1]
self.logger.log("VHD parent = %s" % vdi, 4)
gotParent = True
return activated
def _runTests(vgName):
"""Unit testing"""
print "Running unit tests..."
if not vgName:
print "Error: missing VG name param"
return 1
if not lvutil._checkVG(vgName):
print "Error: VG %s not found" % vgName
return 1
j = Journaler(lvmcache.LVMCache(vgName))
if j.get("clone", "1"):
print "get non-existing failed"
return 1
j.create("clone", "1", "a")
val = j.get("clone", "1")
if val != "a":
print "create-get failed"
return 1
j.remove("clone", "1")
if j.get("clone", "1"):
print "remove failed"
return 1
j.create("modify", "X", "831_3")
j.create("modify", "Z", "831_4")
j.create("modify", "Y", "53_0")
val = j.get("modify", "X")
if val != "831_3":
print "create underscore_val failed"
return 1
val = j.get("modify", "Y")
if val != "53_0":
print "create multiple id's failed"
return 1
entries = j.getAll("modify")
if not entries.get("X") or not entries.get("Y") or \
entries["X"] != "831_3" or entries["Y"] != "53_0":
print "getAll failed: %s" % entries
return 1
j.remove("modify", "X")
val = j.getAll("modify")
if val.get("X") or not val.get("Y") or val["Y"] != "53_0":
print "remove(X) failed"
return 1
j.remove("modify", "Y")
j.remove("modify", "Z")
if j.get("modify", "Y"):
print "remove(Y) failed"
return 1
if j.get("modify", "Z"):
print "remove(Z) failed"
return 1
print "All tests passed"
return 0
def ensurePathExists(mdpath):
if not os.path.exists(mdpath):
vgname = mdpath.split('/')[2]
lvmCache = lvmcache.LVMCache(vgname)
lvmCache.activateNoRefcount(MDVOLUME_NAME)
def srlist_toxml(VGs, prefix, includeMetadata=False):
dom = xml.dom.minidom.Document()
element = dom.createElement("SRlist")
dom.appendChild(element)
for val in VGs:
entry = dom.createElement('SR')
element.appendChild(entry)
subentry = dom.createElement("UUID")
entry.appendChild(subentry)
textnode = dom.createTextNode(val)
subentry.appendChild(textnode)
subentry = dom.createElement("Devlist")
entry.appendChild(subentry)
textnode = dom.createTextNode(VGs[val])
subentry.appendChild(textnode)
subentry = dom.createElement("size")
entry.appendChild(subentry)
size = str(_getVGstats(prefix + val)['physical_size'])
textnode = dom.createTextNode(size)
subentry.appendChild(textnode)
if includeMetadata:
metadataVDI = None
# add SR name_label
mdpath = os.path.join(VG_LOCATION, VG_PREFIX + val)
mdpath = os.path.join(mdpath, MDVOLUME_NAME)
try:
mgtVolActivated = False
if not os.path.exists(mdpath):
# probe happens out of band with attach so this volume
# may not have been activated at this point
lvmCache = lvmcache.LVMCache(VG_PREFIX + val)
lvmCache.activateNoRefcount(MDVOLUME_NAME)
mgtVolActivated = True
sr_metadata = \
srmetadata.LVMMetadataHandler(mdpath, \
False).getMetadata()[0]
subentry = dom.createElement("name_label")
entry.appendChild(subentry)
textnode = dom.createTextNode(
sr_metadata[srmetadata.NAME_LABEL_TAG])
subentry.appendChild(textnode)
# add SR description
subentry = dom.createElement("name_description")
entry.appendChild(subentry)
textnode = dom.createTextNode(
sr_metadata[srmetadata.NAME_DESCRIPTION_TAG])
subentry.appendChild(textnode)
# add metadata VDI UUID
metadataVDI = srmetadata.LVMMetadataHandler(mdpath, \
False).findMetadataVDI()
subentry = dom.createElement("pool_metadata_detected")
entry.appendChild(subentry)
if metadataVDI is not None:
subentry.appendChild(dom.createTextNode("true"))
else:
subentry.appendChild(dom.createTextNode("false"))
finally:
if mgtVolActivated:
# deactivate only if we activated it
lvmCache.deactivateNoRefcount(MDVOLUME_NAME)
return dom.toprettyxml()
