def doUnmountMaster(cls, masterdir):
"""
Unmount the master metadata file system. Should be called only by SPM.
"""
# fuser processes holding mount point and validate that the umount succeeded
cls.__handleStuckUmount(masterdir)
if fileUtils.isMounted(mountPoint=masterdir):
# Try umount, take 1
fileUtils.umount(mountPoint=masterdir)
if fileUtils.isMounted(mountPoint=masterdir):
# umount failed, try to kill that processes holding mount point
fuser_cmd = [constants.EXT_FUSER, "-m", masterdir]
(rc, out, err) = misc.execCmd(fuser_cmd)
# It was unmounted while I was checking no need to do anything
if not fileUtils.isMounted(mountPoint=masterdir):
return
cls.log.warn(out)
if len(out) == 0:
cls.log.warn(
"Unmount failed because of errors that fuser can't solve"
)
else:
for match in out[0].split():
try:
pid = int(match)
except ValueError:
# Match can be "kernel"
continue
try:
cls.log.debug("Trying to kill pid %d", pid)
os.kill(pid, signal.SIGKILL)
except OSError, e:
if e.errno == errno.ESRCH: # No such process
pass
elif e.errno == errno.EPERM: # Operation not permitted
cls.log.warn(
"Could not kill pid %d because operation was not permitted",
pid)
else:
cls.log.warn(
"Could not kill pid %d because an unexpected error",
exc_info=True)
except:
cls.log.warn(
"Could not kill pid %d because an unexpected error",
exc_info=True)
def selftest(self):
"""
Run internal self test
"""
if not fileUtils.isMounted(mountPoint=self.mountpoint, mountType=fileUtils.FSTYPE_NFS):
raise se.StorageDomainFSNotMounted
# Run general part of selftest
fileSD.FileStorageDomain.selftest(self)
def doUnmountMaster(cls, masterdir):
"""
Unmount the master metadata file system. Should be called only by SPM.
"""
# fuser processes holding mount point and validate that the umount succeeded
cls.__handleStuckUmount(masterdir)
if fileUtils.isMounted(mountPoint=masterdir):
# Try umount, take 1
fileUtils.umount(mountPoint=masterdir)
if fileUtils.isMounted(mountPoint=masterdir):
# umount failed, try to kill that processes holding mount point
fuser_cmd = [constants.EXT_FUSER, "-m", masterdir]
(rc, out, err) = misc.execCmd(fuser_cmd)
# It was unmounted while I was checking no need to do anything
if not fileUtils.isMounted(mountPoint=masterdir):
return
cls.log.warn(out)
if len(out) == 0:
cls.log.warn("Unmount failed because of errors that fuser can't solve")
else:
for match in out[0].split():
try:
pid = int(match)
except ValueError:
# Match can be "kernel"
continue
try:
cls.log.debug("Trying to kill pid %d", pid)
os.kill(pid, signal.SIGKILL)
except OSError, e:
if e.errno == errno.ESRCH: # No such process
pass
elif e.errno == errno.EPERM: # Operation not permitted
cls.log.warn("Could not kill pid %d because operation was not permitted", pid)
else:
cls.log.warn("Could not kill pid %d because an unexpected error", exc_info = True)
except:
cls.log.warn("Could not kill pid %d because an unexpected error", exc_info = True)
def _preCreateValidation(cls, sdUUID, domPath, typeSpecificArg, version):
# Some trivial resource validation
if ":" not in typeSpecificArg:
raise se.StorageDomainIllegalRemotePath(typeSpecificArg)
sd.validateDomainVersion(version)
# Make sure the underlying file system is mounted
if not fileUtils.isMounted(mountPoint=domPath, mountType=fileUtils.FSTYPE_NFS):
raise se.StorageDomainFSNotMounted(typeSpecificArg)
validateDirAccess(domPath)
# Make sure there are no remnants of other domain
mdpat = os.path.join(domPath, "*", sd.DOMAIN_META_DATA)
if len(oop.getProcessPool(sdUUID).glob.glob(mdpat)) > 0:
raise se.StorageDomainNotEmpty(typeSpecificArg)
def validateMasterMount(self):
return fileUtils.isMounted(mountPoint=self.getMasterDir())
try:
cls.log.debug("Trying to kill pid %d", pid)
os.kill(pid, signal.SIGKILL)
except OSError, e:
if e.errno == errno.ESRCH: # No such process
pass
elif e.errno == errno.EPERM: # Operation not permitted
cls.log.warn("Could not kill pid %d because operation was not permitted", pid)
else:
cls.log.warn("Could not kill pid %d because an unexpected error", exc_info = True)
except:
cls.log.warn("Could not kill pid %d because an unexpected error", exc_info = True)
# Try umount, take 2
fileUtils.umount(mountPoint=masterdir)
if fileUtils.isMounted(mountPoint=masterdir):
# We failed to umount masterFS
# Forcibly rebooting the SPM host would be safer. ???
raise se.StorageDomainMasterUnmountError(masterdir, rc)
def unmountMaster(self):
"""
Unmount the master metadata file system. Should be called only by SPM.
"""
masterdir = os.path.join(self.domaindir, sd.MASTER_FS_DIR)
self.doUnmountMaster(masterdir)
# It is time to deactivate the master LV now
lvm.deactivateLVs(self.sdUUID, MASTERLV)
def refreshDirTree(self):
def validateMasterMount(self):
return fileUtils.isMounted(mountPoint=self.getMasterDir())
elif e.errno == errno.EPERM: # Operation not permitted
cls.log.warn(
"Could not kill pid %d because operation was not permitted",
pid)
else:
cls.log.warn(
"Could not kill pid %d because an unexpected error",
exc_info=True)
except:
cls.log.warn(
"Could not kill pid %d because an unexpected error",
exc_info=True)
# Try umount, take 2
fileUtils.umount(mountPoint=masterdir)
if fileUtils.isMounted(mountPoint=masterdir):
# We failed to umount masterFS
# Forcibly rebooting the SPM host would be safer. ???
raise se.StorageDomainMasterUnmountError(masterdir, rc)
def unmountMaster(self):
"""
Unmount the master metadata file system. Should be called only by SPM.
"""
masterdir = os.path.join(self.domaindir, sd.MASTER_FS_DIR)
self.doUnmountMaster(masterdir)
# It is time to deactivate the master LV now
lvm.deactivateLVs(self.sdUUID, MASTERLV)
def refreshDirTree(self):
# create domain images folder
