def refresh(self, cycle_id):
self._cycle = cycle_id
self.size = self._so.size
stats_path = os.path.join(self._path, 'statistics/scsi_lu')
self.iops = int(fread(os.path.join(stats_path, "num_cmds")))
read_mb = float(fread(os.path.join(stats_path, "read_mbytes")))
write_mb = float(fread(os.path.join(stats_path, "write_mbytes")))
self.read_bytes_per_sec = int(read_mb * 1024 ** 2)
self.write_bytes_per_sec = int(write_mb * 1024 ** 2)
self.total_bytes_per_sec = self.read_bytes_per_sec + \
self.write_bytes_per_sec
if self._tpg_lun.alua_tg_pt_gp_name == 'ao':
self.active_path = 1
else:
self.active_path = 0
def get_osd_type(osd_path):
osd_type_fname = os.path.join(osd_path, 'type')
if os.path.exists(osd_type_fname):
return fread(osd_type_fname)
else:
if os.path.exists(os.path.join(osd_path, 'journal')):
return "filestore"
else:
raise ValueError("Unrecognised OSD type")
def _dev_to_osd(self):
"""
Look at the system to determine which disks are acting as OSD's
"""
# the logic here uses the mount points to determine which OSD's are
# in the system. The encryption state is determine just by the use
# devicemapper (i.e. /dev/mapper prefixed devices) - since at this time
# this is all dm is used for.
osd_indicators = {'var', 'lib', 'osd'}
for mnt in freadlines('/proc/mounts'):
items = mnt.split(' ')
dev_path, path_name = items[:2]
if path_name.startswith('/var/lib'):
# take a close look since this is where ceph osds usually
# get mounted
dirs = set(path_name.split('/'))
if dirs.issuperset(osd_indicators):
# get the osd_id from the name is the most simple way
# to get the id, due to naming conventions. If this fails
# though, plan 'b' is the whoami file
osd_id = path_name.split('-')[-1]
if not osd_id.isdigit():
osd_id = fread(os.path.join(path_name, 'whoami'))
if osd_id not in self.osd:
osd_type = OSDs.get_osd_type(path_name)
self.osd[osd_id] = OSDstats(osd_type=osd_type)
self.osd_id_list.append(osd_id)
osd_type = self.osd[osd_id]._osd_type
if osd_type == 'filestore':
if dev_path.startswith('/dev/mapper'):
encrypted = 1
uuid = dev_path.split('/')[-1]
partuuid = '/dev/disk/by-partuuid/{}'.format(
uuid)
dev_path = os.path.realpath(partuuid)
osd_device = dev_path.split('/')[-1]
else:
encrypted = 0
osd_device = dev_path.split('/')[-1]
elif osd_type == 'bluestore':
block_link = os.path.join(path_name, 'block')
osd_path = os.path.realpath(block_link)
osd_device = osd_path.split('/')[-1]
encrypted = 0
else:
raise ValueError("Unknown OSD type encountered")
# if the osd_id hasn't been seem neither has the
# disk
self.osd[osd_device] = Disk(osd_device,
path_name=path_name,
osd_id=osd_id,
in_osd_type=osd_type,
encrypted=encrypted)
self.dev_lookup[osd_device] = 'osd'
self.osd_count += 1
if osd_type == 'filestore':
journal_link = os.path.join(path_name, 'journal')
else:
journal_link = os.path.join(path_name, 'block.wal')
if os.path.exists(journal_link):
link_tgt = os.readlink(journal_link)
if link_tgt.startswith('/dev/mapper'):
encrypted = 1
else:
encrypted = 0
partuuid_path = os.path.join(
'/dev/disk/by-partuuid',
link_tgt.split('/')[-1])
jrnl_path = os.path.realpath(partuuid_path)
jrnl_dev = jrnl_path.split('/')[-1]
if jrnl_dev not in self.osd:
self.jrnl[jrnl_dev] = Disk(
jrnl_dev,
osd_id=osd_id,
in_osd_type=osd_type,
encrypted=encrypted)
self.dev_lookup[jrnl_dev] = 'jrnl'
else:
# No journal or WAL link..?
pass