def initialize(self, timestamp):
"""
Create and write metatdata to directory/container.
:param metadata: Metadata to write.
"""
if not self._dir_exists:
mkdirs(self.datadir)
# If we create it, ensure we own it.
do_chown(self.datadir, self.uid, self.gid)
metadata = get_container_metadata(self.datadir)
metadata[X_TIMESTAMP] = timestamp
write_metadata(self.datadir, metadata)
self.metadata = metadata
self._dir_exists = True
def mount(root, drive):
# FIXME: Possible thundering herd problem here
el = _get_export_list()
for export in el:
if drive == export:
break
else:
logging.error('No export found in %r matching drive %s', el, drive)
return False
# NOTE: root is typically the default value of /mnt/gluster-object
full_mount_path = os.path.join(root, drive)
if not os.path.isdir(full_mount_path):
mkdirs(full_mount_path)
pid_dir = "/var/lib/glusterd/vols/%s/run/" % drive
pid_file = os.path.join(pid_dir, 'swift.pid');
if not os.path.exists(pid_dir):
mkdirs(pid_dir)
fd = os.open(pid_file, os.O_CREAT|os.O_RDWR)
with os.fdopen(fd, 'r+b') as f:
try:
fcntl.lockf(f, fcntl.LOCK_EX|fcntl.LOCK_NB)
except:
ex = sys.exc_info()[1]
if isinstance(ex, IOError) and ex.errno in (EACCES, EAGAIN):
# This means that some other process is mounting the
# filesystem, so wait for the mount process to complete
return _busy_wait(full_mount_path)
mnt_cmd = 'mount -t glusterfs %s:%s %s' % (MOUNT_IP, export, \
full_mount_path)
if os.system(mnt_cmd) or not _busy_wait(full_mount_path):
logging.error('Mount failed %s: %s', NAME, mnt_cmd)
return False
return True
