A small tool to fix quarantined objects in OpenStack Swift because of changed hash_path_* and/or rings

swift_fix_obj_loc.py

#!/usr/bin/env python
import sys

from swift.common.ring import Ring
from swift.common.utils import hash_path
from swift.obj.diskfile import read_metadata

datafile = sys.argv[1]

with open(datafile, 'rb') as fp:
    try:
        metadata = read_metadata(fp)
    except EOFError:
        print("Invalid metadata")
        sys.exit(1)

name = metadata.get('name')

account, container, obj = name.split('/', 3)[1:]
ring = Ring('/etc/swift/', ring_name='object')
part = ring.get_part(account, container, obj)
path_hash = hash_path(account, container, obj)

dir_parts = datafile.split('/')
dir_parts.remove('quarantined')
fname = dir_parts[-1]
base_dir = '/'.join(dir_parts[:-2])

new_dir = "%s/%d/%s/%s" % (base_dir, part, path_hash[-3:], path_hash)
mkdir_command = "mkdir -p %s" % new_dir

new_name = "%s/%s" % (new_dir, fname)
mv_command = "mv %s %s" % (datafile, new_name)

print(mkdir_command)
print(mv_command)