swift/bin/swift-object-info
Kun Huang 63061e37ed Add notes for /srv/node in swift-object-info
'devices' is set in object-server.conf on each node, not in ring data,
and the things printed here is just for watching not for running, so
just leave a note here. (this https://review.openstack.org/#/c/23951/
is used for running, so just a note is not enough)

mark this commit as bug fixing is because this script is the last place
using /srv/node but not from conf as Chmouel said.

fixes import change on read_metadata
fixes bug #885006
Change-Id: I727ec2d01c093af61fd3895e5701d87ef67cd9ff
2013-07-23 13:46:51 +08:00

95 lines
3.2 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright (c) 2010-2012 OpenStack, LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import sys
from datetime import datetime
from hashlib import md5
from swift.common.ring import Ring
from swift.obj.diskfile import read_metadata
from swift.common.utils import hash_path
if __name__ == '__main__':
if len(sys.argv) <= 1:
print "Usage: %s OBJECT_FILE" % sys.argv[0]
sys.exit(1)
try:
ring = Ring('/etc/swift/', ring_name='object')
except Exception:
ring = None
datafile = sys.argv[1]
fp = open(datafile, 'rb')
metadata = read_metadata(fp)
path = metadata.pop('name', '')
content_type = metadata.pop('Content-Type', '')
ts = metadata.pop('X-Timestamp', '')
etag = metadata.pop('ETag', '')
length = metadata.pop('Content-Length', '')
if path:
print 'Path: %s' % path
account, container, obj = path.split('/', 3)[1:]
print ' Account: %s' % account
print ' Container: %s' % container
print ' Object: %s' % obj
obj_hash = hash_path(account, container, obj)
print ' Object hash: %s' % obj_hash
if ring is not None:
print 'Ring locations:'
part, nodes = ring.get_nodes(account, container, obj)
for node in nodes:
print (' %s:%s - /srv/node/%s/objects/%s/%s/%s/%s.data' %
(node['ip'], node['port'], node['device'], part,
obj_hash[-3:], obj_hash, ts))
else:
print 'Path: Not found in metadata'
if content_type:
print 'Content-Type: %s' % content_type
else:
print 'Content-Type: Not found in metadata'
if ts:
print 'Timestamp: %s (%s)' % (datetime.fromtimestamp(float(ts)), ts)
else:
print 'Timestamp: Not found in metadata'
h = md5()
file_len = 0
while True:
data = fp.read(64 * 1024)
if not data:
break
h.update(data)
file_len += len(data)
h = h.hexdigest()
if etag:
if h == etag:
print 'ETag: %s (valid)' % etag
else:
print "Etag: %s doesn't match file hash of %s!" % (etag, h)
else:
print 'ETag: Not found in metadata'
if length:
if file_len == int(length):
print 'Content-Length: %s (valid)' % length
else:
print "Content-Length: %s doesn't match file length of %s" % (
length, file_len)
else:
print 'Content-Length: Not found in metadata'
print 'User Metadata: %s' % metadata
print
print 'note: /srv/node is used as default value of `devices`, the real '\
'value is set in object-server.conf on each storage node.'
fp.close()