def __handleStuckUmount(cls, masterDir):
umountPids = utils.pgrep("umount")
try:
masterMount = mount.getMountFromTarget(masterDir)
except OSError as ex:
if ex.errno == errno.ENOENT:
return
raise
for umountPid in umountPids:
try:
state = utils.pidStat(umountPid).state
mountPoint = utils.getCmdArgs(umountPid)[-1]
except:
# Process probably exited
continue
if mountPoint != masterDir:
continue
if state != "D":
# If the umount is not in d state there
# is a possibility that the world might
# be in flux and umount will get stuck
# in an unkillable state that is not D
# which I don't know about, perhaps a
# bug in umount will cause umount to
# wait for something unrelated that is
# not the syscall. Waiting on a process
# which is not your child is race prone
# I will just call for another umount
# and wait for it to finish. That way I
# know that a umount ended.
try:
masterMount.umount()
except mount.MountError:
# timeout! we are stuck again.
# if you are here spmprotect forgot to
# reboot the machine but in any case
# continue with the disconnection.
pass
try:
vgName = masterDir.rsplit("/", 2)[1]
masterDev = os.path.join(
"/dev/mapper",
vgName.replace("-", "--") + "-" + MASTERLV)
except KeyError:
# Umount succeeded after all
return
cls.log.warn(
"master mount resource is `%s`, trying to disconnect "
"underlying storage", masterDev)
iscsi.disconnectFromUndelyingStorage(masterDev)
def __handleStuckUmount(cls, masterDir):
umountPids = utils.pgrep("umount")
try:
masterMount = mount.getMountFromTarget(masterDir)
except OSError as ex:
if ex.errno == errno.ENOENT:
return
raise
for umountPid in umountPids:
try:
state = utils.pidStat(umountPid).state
mountPoint = utils.getCmdArgs(umountPid)[-1]
except:
# Process probably exited
continue
if mountPoint != masterDir:
continue
if state != "D":
# If the umount is not in d state there
# is a possibility that the world might
# be in flux and umount will get stuck
# in an unkillable state that is not D
# which I don't know about, perhaps a
# bug in umount will cause umount to
# wait for something unrelated that is
# not the syscall. Waiting on a process
# which is not your child is race prone
# I will just call for another umount
# and wait for it to finish. That way I
# know that a umount ended.
try:
masterMount.umount()
except mount.MountError:
# timeout! we are stuck again.
# if you are here spmprotect forgot to
# reboot the machine but in any case
# continue with the disconnection.
pass
try:
vgName = masterDir.rsplit("/", 2)[1]
masterDev = os.path.join(
"/dev/mapper", vgName.replace("-", "--") + "-" + MASTERLV)
except KeyError:
# Umount succeeded after all
return
cls.log.warn("master mount resource is `%s`, trying to disconnect "
"underlying storage", masterDev)
iscsi.disconnectFromUndelyingStorage(masterDev)