def encode_fullpath(self, chunk_inode, chunk_id, account, container, path,
version, content_id):
# check if chunk exists and has the same inode
if not is_hexa(chunk_id) or len(chunk_id) != STRLEN_CHUNKID:
raise ValueError('chunk ID must be hexadecimal (%s)' %
STRLEN_CHUNKID)
try:
chunk_inode2 = os.stat(self._get_path(chunk_id)).st_ino
except OSError:
raise OrphanChunk('No such chunk: possible orphan chunk')
if chunk_inode2 != chunk_inode:
raise OrphanChunk('Not the same inode: possible orphan chunk')
# check fullpath and chunk ID
if isinstance(version, basestring):
try:
version = int(version)
except ValueError:
raise ValueError('version must be a number')
if version <= 0:
raise ValueError('version must be positive')
if not is_hexa(content_id):
raise ValueError('content ID must be hexadecimal')
fullpath = encode_fullpath(account, container, path, version,
content_id.upper())
return chunk_id.upper(), fullpath
def swift3_split_object_name_version(object_name):
if '/' not in object_name or \
len(object_name) < 3 or \
not is_hexa(object_name[:3]):
return object_name, None
return object_name[3:].rsplit('/', 1)
def convert_chunk(self, fd, chunk_id):
meta, raw_meta = read_chunk_metadata(fd,
chunk_id,
check_chunk_id=False)
links = meta.get('links', dict())
for chunk_id2, fullpath2 in links.iteritems():
self.decode_fullpath(fullpath2)
fullpath = meta.get('full_path')
if fullpath is not None:
self.decode_fullpath(fullpath)
if meta.get('oio_version') == OIO_VERSION:
return True, meta
chunk_inode = os.fstat(fd.fileno()).st_ino
raw_chunk_id = None
chunk_id = chunk_id.upper()
chunk_pos = meta['chunk_pos']
container_id = meta['container_id'].upper()
path = meta['content_path']
version = meta['content_version']
content_id = meta['content_id'].upper()
new_fullpaths = dict()
xattr_to_remove = list()
success = True
for k, v in raw_meta.iteritems():
# fetch raw chunk ID
if k == XATTR_CHUNK_ID:
raw_chunk_id = v.upper()
# search old fullpaths
if not k.startswith(XATTR_OLD_FULLPATH) \
or not is_hexa(k[4:], size=64):
continue
try:
account2, container2, container_id2, path2, version2, \
content_id2 = self.decode_old_fullpath(v)
if container_id == container_id2 and path == path2 \
and version == version2:
if content_id2 is None:
content_id2 = self.content_id_from_name(container_id2,
path2,
version2,
search=True)
chunk_id, new_fullpath = self.encode_fullpath(
chunk_inode, chunk_id, account2, container2, path2,
version2, content_id2)
new_fullpaths[chunk_id] = new_fullpath
else:
chunk_id2, new_fullpath = self.get_chunk_id_and_fullpath(
chunk_inode,
chunk_pos,
container_id2,
path2,
version2,
account=account2,
container=container2,
content_id=content_id2)
new_fullpaths[chunk_id2] = new_fullpath
xattr_to_remove.append(k)
except Exception as exc:
success = False
self.logger.warn('chunk_id=%s old_fullpath=%s: %s', chunk_id,
k, exc)
# old xattr
if raw_chunk_id is not None:
try:
if raw_chunk_id != chunk_id and raw_chunk_id not in links:
if raw_chunk_id not in new_fullpaths:
meta2, _ = read_chunk_metadata(fd, raw_chunk_id)
container_id2 = meta2['container_id'].upper()
path2 = meta2['content_path']
version2 = meta2['content_version']
content_id2 = meta2['content_id'].upper()
raw_chunk_id, new_fullpath = \
self.get_chunk_id_and_fullpath(
chunk_inode, chunk_pos, container_id2, path2,
version2, chunk_id=raw_chunk_id,
content_id=content_id2)
new_fullpaths[raw_chunk_id] = new_fullpath
elif raw_chunk_id == chunk_id and fullpath is None:
if raw_chunk_id not in new_fullpaths:
raw_chunk_id, new_fullpath = \
self.get_chunk_id_and_fullpath(
chunk_inode, chunk_pos, container_id, path,
version, chunk_id=raw_chunk_id,
content_id=content_id)
new_fullpaths[raw_chunk_id] = new_fullpath
except Exception as exc:
success = False
self.logger.warn('chunk_id=%s (old xattr): %s', raw_chunk_id,
exc)
self.save_xattr(chunk_id, raw_meta)
if self.dry_run:
self.logger.info(
"[dryrun] Converting chunk %s: success=%s new_fullpaths=%s "
"xattr_to_remove=%s", chunk_id, str(success),
str(new_fullpaths), str(xattr_to_remove))
else:
# for security, if there is an error, we don't delete old xattr
modify_xattr(fd, new_fullpaths, success, xattr_to_remove)
return success, None
def swift3_split_object_name_version(object_name):
if '/' not in object_name or \
len(object_name) < 3 or \
not is_hexa(object_name[:3]):
return object_name, None
return object_name[3:].rsplit('/', 1)
