def _detect_event(self, device):
mpath_uuid = device.get("DM_UUID", "")
if not mpath_uuid.startswith("mpath-"):
return None
mpath_uuid = mpath_uuid[6:]
if device["ACTION"] == "change":
dm_action = device.get("DM_ACTION")
if dm_action == "PATH_FAILED":
event_type = PATH_FAILED
elif dm_action == "PATH_REINSTATED":
event_type = PATH_REINSTATED
else:
self.log.debug("Unsupported DM_ACTION %r", dm_action)
return
valid_paths = int(device.get("DM_NR_VALID_PATHS"))
dm_seqnum = int(device.get("DM_SEQNUM"))
path = devicemapper.device_name(device.get("DM_PATH"))
elif device["ACTION"] == "remove":
event_type = MPATH_REMOVED
valid_paths = None
path = None
dm_seqnum = None
else:
return None
return MultipathEvent(event_type, mpath_uuid, path, valid_paths,
dm_seqnum)
def _detect_event(self, device):
mpath_uuid = device.get("DM_UUID", "")
if not mpath_uuid.startswith("mpath-"):
return None
mpath_uuid = mpath_uuid[6:]
if device["ACTION"] == "change":
dm_action = device.get("DM_ACTION")
if dm_action == "PATH_FAILED":
event_type = PATH_FAILED
elif dm_action == "PATH_REINSTATED":
event_type = PATH_REINSTATED
else:
self.log.debug("Unsupported DM_ACTION %r", dm_action)
return
valid_paths = int(device.get("DM_NR_VALID_PATHS"))
dm_seqnum = int(device.get("DM_SEQNUM"))
path = devicemapper.device_name(device.get("DM_PATH"))
elif device["ACTION"] == "remove":
event_type = MPATH_REMOVED
valid_paths = None
path = None
dm_seqnum = None
else:
return None
return MultipathEvent(event_type, mpath_uuid, path, valid_paths,
dm_seqnum)
def test_block_device_name():
devs = glob.glob("/sys/block/*/dev")
dev_name = os.path.basename(os.path.dirname(devs[0]))
with open(devs[0], 'r') as f:
major_minor = f.readline().rstrip()
assert devicemapper.device_name(major_minor) == dev_name
def test_block_device_name():
devs = glob.glob("/sys/block/*/dev")
dev_name = os.path.basename(os.path.dirname(devs[0]))
with open(devs[0], 'r') as f:
major_minor = f.readline().rstrip()
assert devicemapper.device_name(major_minor) == dev_name