def getMetadata(self, metaId=None):
"""
Get Meta data array of key,values lines
"""
if not metaId:
metaId = self.getMetadataId()
vgname, offs = metaId
try:
meta = misc.readblock(lvm.lvPath(vgname, sd.METADATA),
offs * volume.METADATA_SIZE,
volume.METADATA_SIZE)
# TODO: factor out logic below for sharing with file volumes
out = {}
for l in meta:
if l.startswith("EOF"):
return out
if l.find("=") < 0:
continue
key, value = l.split("=", 1)
out[key.strip()] = value.strip()
except Exception as e:
self.log.error(e, exc_info=True)
raise se.VolumeMetadataReadError("%s: %s" % (metaId, e))
return out
def getMetadata(self, metaId=None):
"""
Get Meta data array of key,values lines
"""
if not metaId:
metaId = self.getMetadataId()
volPath, = metaId
metaPath = self._getMetaVolumePath(volPath)
try:
f = self.oop.directReadLines(metaPath)
# TODO: factor out logic below for sharing with block volumes
out = {}
for l in f:
if l.startswith("EOF"):
return out
if l.find("=") < 0:
continue
key, value = l.split("=", 1)
out[key.strip()] = value.strip()
except Exception as e:
self.log.error(e, exc_info=True)
raise se.VolumeMetadataReadError("%s: %s" % (metaId, e))
return out
def getMetadata(self, metaid=None, nocache=False):
"""
Get Meta data array of key,values lines
"""
if nocache:
out = self.metaCache()
if out:
return out
if not metaid:
vgname = self.sdUUID
offs = self.getMetaOffset()
else:
vgname = metaid[0]
offs = metaid[1]
try:
meta = misc.readblockSUDO(lvm.lvPath(vgname, sd.METADATA),
offs * VOLUME_METASIZE, VOLUME_METASIZE)
out = {}
for l in meta:
if l.startswith("EOF"):
return out
if l.find("=") < 0:
continue
key, value = l.split("=")
out[key.strip()] = value.strip()
except Exception, e:
self.log.error(e, exc_info=True)
raise se.VolumeMetadataReadError(str(metaid) + ":" + str(e))
def getMetaOffset(self):
if self.metaoff:
return self.metaoff
l = lvm.getLV(self.sdUUID, self.volUUID).tags
for t in l:
if t.startswith(TAG_PREFIX_MD):
return int(t[3:])
self.log.error("missing offset tag on volume %s", self.volUUID)
raise se.VolumeMetadataReadError("missing offset tag on volume %s" %
self.volUUID)
def getMetaOffset(self):
if self.metaoff:
return self.metaoff
try:
md = _getVolumeTag(self.sdUUID, self.volUUID, TAG_PREFIX_MD)
except se.MissingTagOnLogicalVolume:
self.log.error("missing offset tag on volume %s/%s",
self.sdUUID,
self.volUUID,
exc_info=True)
raise se.VolumeMetadataReadError(
"missing offset tag on volume %s/%s" %
(self.sdUUID, self.volUUID))
else:
return int(md)
def getMetadata(self, vol_path=None, nocache=False):
"""
Get Meta data array of key,values lines
"""
if nocache:
out = self.metaCache()
if out:
return out
meta = self._getMetaVolumePath(vol_path)
try:
f = self.oop.directReadLines(meta)
out = {}
for l in f:
if l.startswith("EOF"):
return out
if l.find("=") < 0:
continue
key, value = l.split("=")
out[key.strip()] = value.strip()
except Exception, e:
self.log.error(e, exc_info=True)
raise se.VolumeMetadataReadError(meta + str(e))