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#!/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 optparse
import sys
import urllib
from swift.common.ring import Ring
from swift.common.utils import hash_path
parser = optparse.OptionParser()
parser.add_option('-a', '--all', action='store_true',
help='Show all handoff nodes')
parser.add_option('-p', '--partition', metavar='PARTITION',
help='Show nodes for a given partition')
(options, args) = parser.parse_args()
if (len(args) < 2 or len(args) > 4) and \
(options.partition is None or not args):
print 'Usage: %s [-a] <ring.gz> <account> [<container>] [<object>]' \
% sys.argv[0]
print ' Or: %s [-a] <ring.gz> -p partition' % sys.argv[0]
print ' Note: account, container, object can also be a single arg ' \
'separated by /'
print 'Shows the nodes responsible for the item specified.'
print 'Example:'
print ' $ %s /etc/swift/account.ring.gz MyAccount' % sys.argv[0]
print ' Partition 5743883'
print ' Hash 96ae332a60b58910784e4417a03e1ad0'
print ' 10.1.1.7:8000 sdd1'
print ' 10.1.9.2:8000 sdb1'
print ' 10.1.5.5:8000 sdf1'
print ' 10.1.5.9:8000 sdt1 # [Handoff]'
sys.exit(1)
if len(args) == 2 and '/' in args[1]:
# Parse single path arg, as noted in above help text.
path = args[1].lstrip('/')
args = [args[0]] + [p for p in path.split('/', 2) if p]
ringloc = None
account = None
container = None
obj = None
if len(args) == 4:
# Account, Container and Object
ring_file, account, container, obj = args
ring = Ring(ring_file)
hash_str = hash_path(account, container, obj)
part, nodes = ring.get_nodes(account, container, obj)
target = "%s/%s/%s" % (account, container, obj)
loc = 'objects'
elif len(args) == 3:
# Account, Container
ring_file, account, container = args
ring = Ring(ring_file)
hash_str = hash_path(account, container)
part, nodes = ring.get_nodes(account, container)
target = "%s/%s" % (account, container)
loc = 'containers'
elif len(args) == 2:
# Account
ring_file, account = args
ring = Ring(ring_file)
hash_str = hash_path(account)
part, nodes = ring.get_nodes(account)
target = "%s" % (account)
loc = 'accounts'
elif len(args) == 1:
# Partition
ring_file = args[0]
ring = Ring(ring_file)
hash_str = None
part = int(options.partition)
nodes = ring.get_part_nodes(part)
target = ''
loc = ring_file.rsplit('/', 1)[-1].split('.', 1)[0]
if loc in ('account', 'container', 'object'):
loc += 's'
else:
loc = '<type>'
more_nodes = []
for more_node in ring.get_more_nodes(part):
more_nodes.append(more_node)
if not options.all and len(more_nodes) >= len(nodes):
break
print '\nAccount \t%s' % account
print 'Container\t%s' % container
print 'Object \t%s\n' % obj
print '\nPartition\t%s' % part
print 'Hash \t%s\n' % hash_str
for node in nodes:
print 'Server:Port Device\t%s:%s %s' % (node['ip'], node['port'],
node['device'])
for mnode in more_nodes:
print 'Server:Port Device\t%s:%s %s\t [Handoff]' \
% (mnode['ip'], mnode['port'], mnode['device'])
print "\n"
for node in nodes:
print 'curl -I -XHEAD "http://%s:%s/%s/%s/%s"' \
% (node['ip'], node['port'], node['device'], part,
urllib.quote(target))
for mnode in more_nodes:
print 'curl -I -XHEAD "http://%s:%s/%s/%s/%s" # [Handoff]' \
% (mnode['ip'], mnode['port'], mnode['device'], part,
urllib.quote(target))
print "\n"
print 'Use your own device location of servers:'
print 'such as "export DEVICE=/srv/node"'
for node in nodes:
if hash_str:
print 'ssh %s "ls -lah ${DEVICE:-/srv/node}/%s/%s/%s/%s/%s/"' % (
node['ip'], node['device'], loc, part, hash_str[-3:], hash_str)
else:
print 'ssh %s "ls -lah ${DEVICE:-/srv/node}/%s/%s/%s/"' % (
node['ip'], node['device'], loc, part)
for mnode in more_nodes:
if hash_str:
print 'ssh %s "ls -lah ${DEVICE:-/srv/node}/%s/%s/%s/%s/%s/" '\
'# [Handoff]' % (mnode['ip'], mnode['device'], loc, part,
hash_str[-3:], hash_str)
else:
print 'ssh %s "ls -lah ${DEVICE:-/srv/node}/%s/%s/%s/" # [Handoff]' % (
mnode['ip'], mnode['device'], loc, part)
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