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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 os
import sys
from urllib import quote
from hashlib import md5
import getopt
from itertools import chain
import simplejson
from eventlet.greenpool import GreenPool
from eventlet.event import Event
from swift.common.ring import Ring
from swift.common.utils import split_path
from swift.common.bufferedhttp import http_connect
usage = """
Usage!
%(cmd)s [options] [url 1] [url 2] ...
-c [concurrency] Set the concurrency, default 50
-r [ring dir] Ring locations, default /etc/swift
-e [filename] File for writing a list of inconsistent urls
-d Also download files and verify md5
You can also feed a list of urls to the script through stdin.
Examples!
%(cmd)s SOSO_88ad0b83-b2c5-4fa1-b2d6-60c597202076
%(cmd)s SOSO_88ad0b83-b2c5-4fa1-b2d6-60c597202076/container/object
%(cmd)s -e errors.txt SOSO_88ad0b83-b2c5-4fa1-b2d6-60c597202076/container
%(cmd)s < errors.txt
%(cmd)s -c 25 -d < errors.txt
""" % {'cmd': sys.argv[0]}
class Auditor(object):
def __init__(self, swift_dir='/etc/swift', concurrency=50, deep=False,
error_file=None):
self.pool = GreenPool(concurrency)
self.object_ring = Ring(swift_dir, ring_name='object')
self.container_ring = Ring(swift_dir, ring_name='container')
self.account_ring = Ring(swift_dir, ring_name='account')
self.deep = deep
self.error_file = error_file
# zero out stats
self.accounts_checked = self.account_exceptions = \
self.account_not_found = self.account_container_mismatch = \
self.account_object_mismatch = self.objects_checked = \
self.object_exceptions = self.object_not_found = \
self.object_checksum_mismatch = self.containers_checked = \
self.container_exceptions = self.container_count_mismatch = \
self.container_not_found = self.container_obj_mismatch = 0
self.list_cache = {}
self.in_progress = {}
def audit_object(self, account, container, name):
path = '/%s/%s/%s' % (account, container, name)
part, nodes = self.object_ring.get_nodes(
account, container.encode('utf-8'), name.encode('utf-8'))
container_listing = self.audit_container(account, container)
consistent = True
if name not in container_listing:
print " Object %s missing in container listing!" % path
consistent = False
hash = None
else:
hash = container_listing[name]['hash']
etags = []
for node in nodes:
try:
if self.deep:
conn = http_connect(node['ip'], node['port'],
node['device'], part, 'GET', path, {})
resp = conn.getresponse()
calc_hash = md5()
chunk = True
while chunk:
chunk = resp.read(8192)
calc_hash.update(chunk)
calc_hash = calc_hash.hexdigest()
if resp.status // 100 != 2:
self.object_not_found += 1
consistent = False
print ' Bad status GETting object "%s" on %s/%s' \
% (path, node['ip'], node['device'])
continue
if resp.getheader('ETag').strip('"') != calc_hash:
self.object_checksum_mismatch += 1
consistent = False
print ' MD5 does not match etag for "%s" on %s/%s' \
% (path, node['ip'], node['device'])
etags.append(resp.getheader('ETag'))
else:
conn = http_connect(node['ip'], node['port'],
node['device'], part, 'HEAD',
path.encode('utf-8'), {})
resp = conn.getresponse()
if resp.status // 100 != 2:
self.object_not_found += 1
consistent = False
print ' Bad status HEADing object "%s" on %s/%s' \
% (path, node['ip'], node['device'])
continue
etags.append(resp.getheader('ETag'))
except Exception:
self.object_exceptions += 1
consistent = False
print ' Exception fetching object "%s" on %s/%s' \
% (path, node['ip'], node['device'])
continue
if not etags:
consistent = False
print " Failed fo fetch object %s at all!" % path
elif hash:
for etag in etags:
if resp.getheader('ETag').strip('"') != hash:
consistent = False
self.object_checksum_mismatch += 1
print ' ETag mismatch for "%s" on %s/%s' \
% (path, node['ip'], node['device'])
if not consistent and self.error_file:
print >>open(self.error_file, 'a'), path
self.objects_checked += 1
def audit_container(self, account, name, recurse=False):
if (account, name) in self.in_progress:
self.in_progress[(account, name)].wait()
if (account, name) in self.list_cache:
return self.list_cache[(account, name)]
self.in_progress[(account, name)] = Event()
print 'Auditing container "%s"' % name
path = '/%s/%s' % (account, name)
account_listing = self.audit_account(account)
consistent = True
if name not in account_listing:
consistent = False
print " Container %s not in account listing!" % path
part, nodes = \
self.container_ring.get_nodes(account, name.encode('utf-8'))
rec_d = {}
responses = {}
for node in nodes:
marker = ''
results = True
while results:
node_id = node['id']
try:
conn = http_connect(node['ip'], node['port'],
node['device'], part, 'GET',
path.encode('utf-8'), {},
'format=json&marker=%s' %
quote(marker.encode('utf-8')))
resp = conn.getresponse()
if resp.status // 100 != 2:
self.container_not_found += 1
consistent = False
print(' Bad status GETting container "%s" on %s/%s' %
(path, node['ip'], node['device']))
break
if node['id'] not in responses:
responses[node['id']] = dict(resp.getheaders())
results = simplejson.loads(resp.read())
except Exception:
self.container_exceptions += 1
consistent = False
print ' Exception GETting container "%s" on %s/%s' % \
(path, node['ip'], node['device'])
break
if results:
marker = results[-1]['name']
for obj in results:
obj_name = obj['name']
if obj_name not in rec_d:
rec_d[obj_name] = obj
if (obj['last_modified'] !=
rec_d[obj_name]['last_modified']):
self.container_obj_mismatch += 1
consistent = False
print(" Different versions of %s/%s "
"in container dbs." % (name, obj['name']))
if (obj['last_modified'] >
rec_d[obj_name]['last_modified']):
rec_d[obj_name] = obj
obj_counts = [int(header['x-container-object-count'])
for header in responses.values()]
if not obj_counts:
consistent = False
print " Failed to fetch container %s at all!" % path
else:
if len(set(obj_counts)) != 1:
self.container_count_mismatch += 1
consistent = False
print " Container databases don't agree on number of objects."
print " Max: %s, Min: %s" % (max(obj_counts), min(obj_counts))
self.containers_checked += 1
self.list_cache[(account, name)] = rec_d
self.in_progress[(account, name)].send(True)
del self.in_progress[(account, name)]
if recurse:
for obj in rec_d.keys():
self.pool.spawn_n(self.audit_object, account, name, obj)
if not consistent and self.error_file:
print >>open(self.error_file, 'a'), path
return rec_d
def audit_account(self, account, recurse=False):
if account in self.in_progress:
self.in_progress[account].wait()
if account in self.list_cache:
return self.list_cache[account]
self.in_progress[account] = Event()
print 'Auditing account "%s"' % account
consistent = True
path = '/%s' % account
part, nodes = self.account_ring.get_nodes(account)
responses = {}
for node in nodes:
marker = ''
results = True
while results:
node_id = node['id']
try:
conn = http_connect(node['ip'], node['port'],
node['device'], part, 'GET', path, {},
'format=json&marker=%s' %
quote(marker.encode('utf-8')))
resp = conn.getresponse()
if resp.status // 100 != 2:
self.account_not_found += 1
consistent = False
print(" Bad status GETting account '%s' "
" from %ss:%ss" %
(account, node['ip'], node['device']))
break
results = simplejson.loads(resp.read())
except Exception:
self.account_exceptions += 1
consistent = False
print(" Exception GETting account '%s' on %ss:%ss" %
(account, node['ip'], node['device']))
break
if node_id not in responses:
responses[node_id] = [dict(resp.getheaders()), []]
responses[node_id][1].extend(results)
if results:
marker = results[-1]['name']
headers = [resp[0] for resp in responses.values()]
cont_counts = [int(header['x-account-container-count'])
for header in headers]
if len(set(cont_counts)) != 1:
self.account_container_mismatch += 1
consistent = False
print(" Account databases for '%s' don't agree on"
" number of containers." % account)
if cont_counts:
print " Max: %s, Min: %s" % (max(cont_counts),
min(cont_counts))
obj_counts = [int(header['x-account-object-count'])
for header in headers]
if len(set(obj_counts)) != 1:
self.account_object_mismatch += 1
consistent = False
print(" Account databases for '%s' don't agree on"
" number of objects." % account)
if obj_counts:
print " Max: %s, Min: %s" % (max(obj_counts),
min(obj_counts))
containers = set()
for resp in responses.values():
containers.update(container['name'] for container in resp[1])
self.list_cache[account] = containers
self.in_progress[account].send(True)
del self.in_progress[account]
self.accounts_checked += 1
if recurse:
for container in containers:
self.pool.spawn_n(self.audit_container, account,
container, True)
if not consistent and self.error_file:
print >>open(self.error_file, 'a'), path
return containers
def audit(self, account, container=None, obj=None):
if obj and container:
self.pool.spawn_n(self.audit_object, account, container, obj)
elif container:
self.pool.spawn_n(self.audit_container, account, container, True)
else:
self.pool.spawn_n(self.audit_account, account, True)
def wait(self):
self.pool.waitall()
def print_stats(self):
print
print " Accounts checked: %d" % self.accounts_checked
if self.account_not_found:
print " Missing Replicas: %d" % self.account_not_found
if self.account_exceptions:
print " Exceptions: %d" % self.account_exceptions
if self.account_container_mismatch:
print "Container mismatch: %d" % self.account_container_mismatch
if self.account_object_mismatch:
print " Object mismatch: %d" % self.account_object_mismatch
print
print "Containers checked: %d" % self.containers_checked
if self.container_not_found:
print " Missing Replicas: %d" % self.container_not_found
if self.container_exceptions:
print " Exceptions: %d" % self.container_exceptions
if self.container_count_mismatch:
print " Count mismatch: %d" % self.container_count_mismatch
if self.container_obj_mismatch:
print " Object mismatch: %d" % self.container_obj_mismatch
print
print " Objects checked: %d" % self.objects_checked
if self.object_not_found:
print " Missing Replicas: %d" % self.object_not_found
if self.object_exceptions:
print " Exceptions: %d" % self.object_exceptions
if self.object_checksum_mismatch:
print " MD5 Mismatch: %d" % self.object_checksum_mismatch
if __name__ == '__main__':
try:
optlist, args = getopt.getopt(sys.argv[1:], 'c:r:e:d')
except getopt.GetoptError, err:
print str(err)
print usage
sys.exit(2)
if not args and os.isatty(sys.stdin.fileno()):
print usage
sys.exit()
opts = dict(optlist)
options = {
'concurrency': int(opts.get('-c', 50)),
'error_file': opts.get('-e', None),
'swift_dir': opts.get('-r', '/etc/swift'),
'deep': '-d' in opts,
}
auditor = Auditor(**options)
if not os.isatty(sys.stdin.fileno()):
args = chain(args, sys.stdin)
for path in args:
path = '/' + path.rstrip('\r\n').lstrip('/')
auditor.audit(*split_path(path, 1, 3, True))
auditor.wait()
auditor.print_stats()