def try_umount(self):
cmd = ['umount', self.mount_point]
(ret, out, err) = self.vcall(cmd, err_to_info=True)
if ret == 0:
return 0
""" don't try to kill process using the source of a
protected bind mount
"""
if protected_mount(self.mount_point):
return 1
""" best effort kill of all processes that might block
the umount operation. The priority is given to mass
action reliability, ie don't contest oprator's will
"""
cmd = ['sync']
(ret, out, err) = self.vcall(cmd, err_to_info=True)
for i in range(4):
cmd = ['fuser', '-kc', self.mount_point]
(ret, out, err) = self.vcall(cmd, err_to_info=True)
self.log.info('umount %s' % self.mount_point)
cmd = ['umount', self.mount_point]
ret = qcall(cmd)
if ret == 0:
break
return ret
def snapdestroykey(self, snap_key):
""" destroy a snapshot for a mount_point
"""
clonedev = self.snaps[snap_key]['snapdev']
dom, clonefset = clonedev.split('#')
o = utilities.subsystems.advfs.Fdmns()
try:
d = o.get_fdmn(dom)
except utilities.subsystems.advfs.ExInit:
raise ex.syncSnapDestroyError
if clonefset not in d.fsets:
return
if protected_mount(self.snaps[snap_key]['snap_mnt']):
self.log.error(
"the clone fset is no longer mounted in %s. panic." %
self.snaps[snap_key]['snap_mnt'])
raise ex.Error
cmd = ['fuser', '-kcv', self.snaps[snap_key]['snap_mnt']]
(ret, out, err) = self.vcall(cmd, err_to_info=True)
cmd = ['umount', self.snaps[snap_key]['snap_mnt']]
(ret, out, err) = self.vcall(cmd)
if ret != 0:
raise ex.Error
(ret, buff, err) = self.vcall(['rmfset', '-f', dom, clonefset])
if ret != 0:
raise ex.syncSnapDestroyError
def snapdestroykey(self, s):
if protected_mount(self.snaps[s]['snap_mnt']):
self.log.error("the snapshot is no longer mounted in %s. panic."%self.snaps[s]['snap_mnt'])
raise ex.Error
""" fuser on HP-UX outs to stderr ...
"""
cmd = ['fuser', '-c', '-x', '-k', self.snaps[s]['snap_mnt']]
ret = qcall(cmd)
cmd = ['umount', self.snaps[s]['snap_mnt']]
(ret, out, err) = self.vcall(cmd)
cmd = ['snapshot', '-d', self.snaps[s]['snap_dev']]
(ret, buff, err) = self.vcall(cmd)
def try_umount(self, dev=None, mnt=None, fs_type=None):
if dev is None:
dev = self.device
if mnt is None:
mnt = self.mount_point
if fs_type is None:
fs_type = self.fs_type
if fs_type == "zfs":
ret, out, err = self.umount_zfs(dev, mnt)
else:
ret, out, err = self.umount_generic(mnt)
if ret == 0:
return 0
if "not mounted" in err:
return 0
# don't try to kill process using the source of a
# protected bind mount
if protected_mount(mnt):
return 1
# best effort kill of all processes that might block
# the umount operation. The priority is given to mass
# action reliability, ie don't contest oprator's will
cmd = ['sync']
ret, out, err = self.vcall(cmd)
if os.path.isdir(dev):
fuser_opts = '-kv'
else:
fuser_opts = '-kmv'
for _ in range(4):
cmd = ['fuser', fuser_opts, mnt]
(ret, out, err) = self.vcall(cmd, err_to_info=True)
self.log.info('umount %s', mnt)
cmd = ['umount', mnt]
ret = qcall(cmd)
if ret == 0:
break
return ret
def try_umount(self):
cmd = ['diskutil', 'umount', self.mount_point]
(ret, out, err) = self.vcall(cmd, err_to_info=True)
if ret == 0:
return 0
cmd = ['diskutil', 'umount', 'force', self.mount_point]
(ret, out, err) = self.vcall(cmd, err_to_info=True)
if ret == 0:
return 0
cmd = ['umount', self.mount_point]
(ret, out, err) = self.vcall(cmd, err_to_info=True)
if ret == 0:
return 0
""" don't try to kill process using the source of a
protected bind mount
"""
if protected_mount(self.mount_point):
return 1
""" best effort kill of all processes that might block
the umount operation. The priority is given to mass
action reliability, ie don't contest oprator's will
"""
cmd = ['sync']
(ret, out, err) = self.vcall(cmd, err_to_info=True)
for i in range(4):
nb_killed = self.killfuser(self.mount_point)
self.log.info('umount %s' % self.mount_point)
cmd = ['umount', self.mount_point]
ret = qcall(cmd)
if ret == 0 or nb_killed == 0:
break
if ret != 0:
self.log.info(
"no more process using %s, yet umount fails. try forced umount." %
self.mount_point)
cmd = ['umount', '-f', self.mount_point]
(ret, out, err) = self.vcall(cmd, err_to_info=True)
return ret
def snapdestroykey(self, s):
if protected_mount(self.snaps[s]['snap_mnt']):
self.log.error("the snapshot is no longer mounted in %s. panic." %
self.snaps[s]['snap_mnt'])
raise ex.Error
cmd = ['fuser', '-kmv', self.snaps[s]['snap_mnt']]
(ret, out, err) = self.vcall(cmd, err_to_info=True)
cmd = [Env.syspaths.umount, self.snaps[s]['snap_mnt']]
(ret, out, err) = self.vcall(cmd)
utilities.devices.linux.udevadm_settle()
cmd = ['lvremove', '-A', 'n', '-f', self.snaps[s]['snap_dev']]
self.log.info(' '.join(cmd))
for i in range(1, 30):
out, err, ret = justcall(cmd)
if ret == 0:
break
err_l1 = err.split('\n')
err_l2 = []
out_l = out.split('\n')
for e in err_l1:
if 'This metadata update is NOT backed up' in e:
pass
elif 'Falling back to direct link removal.' in e:
out_l.append(e)
elif 'Falling back to direct node removal.' in e:
out_l.append(e)
else:
err_l2.append(e)
err = '\n'.join(err_l2)
out = '\n'.join(out_l)
if len(out) > 0:
self.log.info(out)
if len(err) > 0:
self.log.error(err)
if ret != 0:
self.log.error("failed to remove snapshot %s (attempts: %d)" %
(self.snaps[s]['snap_dev'], i))
elif i > 1:
self.log.info("successfully removed snapshot %s (attempts: %d)" %
(self.snaps[s]['snap_dev'], i))
del (self.snaps[s])
