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# Copyright (c) 2010-2012 OpenStack Foundation
#
# 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 time
from swift import gettext_ as _
from random import random
import swift.common.db
from swift.account.backend import AccountBroker, DATADIR
from swift.common.exceptions import InvalidAccountInfo
from swift.common.utils import get_logger, audit_location_generator, \
config_true_value, dump_recon_cache, ratelimit_sleep
from swift.common.daemon import Daemon
from eventlet import Timeout
class AccountAuditor(Daemon):
"""Audit accounts."""
def __init__(self, conf, logger=None):
self.conf = conf
self.logger = logger or get_logger(conf, log_route='account-auditor')
self.devices = conf.get('devices', '/srv/node')
self.mount_check = config_true_value(conf.get('mount_check', 'true'))
self.interval = int(conf.get('interval', 1800))
self.logging_interval = 3600 # once an hour
self.account_passes = 0
self.account_failures = 0
self.accounts_running_time = 0
self.max_accounts_per_second = \
float(conf.get('accounts_per_second', 200))
swift.common.db.DB_PREALLOCATION = \
config_true_value(conf.get('db_preallocation', 'f'))
self.recon_cache_path = conf.get('recon_cache_path',
'/var/cache/swift')
self.rcache = os.path.join(self.recon_cache_path, "account.recon")
def _one_audit_pass(self, reported):
all_locs = audit_location_generator(self.devices, DATADIR, '.db',
mount_check=self.mount_check,
logger=self.logger)
for path, device, partition in all_locs:
self.account_audit(path)
if time.time() - reported >= self.logging_interval:
self.logger.info(_('Since %(time)s: Account audits: '
'%(passed)s passed audit,'
'%(failed)s failed audit'),
{'time': time.ctime(reported),
'passed': self.account_passes,
'failed': self.account_failures})
dump_recon_cache({'account_audits_since': reported,
'account_audits_passed': self.account_passes,
'account_audits_failed':
self.account_failures},
self.rcache, self.logger)
reported = time.time()
self.account_passes = 0
self.account_failures = 0
self.accounts_running_time = ratelimit_sleep(
self.accounts_running_time, self.max_accounts_per_second)
return reported
def run_forever(self, *args, **kwargs):
"""Run the account audit until stopped."""
reported = time.time()
time.sleep(random() * self.interval)
while True:
self.logger.info(_('Begin account audit pass.'))
begin = time.time()
try:
reported = self._one_audit_pass(reported)
except (Exception, Timeout):
self.logger.increment('errors')
self.logger.exception(_('ERROR auditing'))
elapsed = time.time() - begin
if elapsed < self.interval:
time.sleep(self.interval - elapsed)
self.logger.info(
_('Account audit pass completed: %.02fs'), elapsed)
dump_recon_cache({'account_auditor_pass_completed': elapsed},
self.rcache, self.logger)
def run_once(self, *args, **kwargs):
"""Run the account audit once."""
self.logger.info(_('Begin account audit "once" mode'))
begin = reported = time.time()
self._one_audit_pass(reported)
elapsed = time.time() - begin
self.logger.info(
_('Account audit "once" mode completed: %.02fs'), elapsed)
dump_recon_cache({'account_auditor_pass_completed': elapsed},
self.rcache, self.logger)
def validate_per_policy_counts(self, broker):
info = broker.get_info()
policy_stats = broker.get_policy_stats(do_migrations=True)
policy_totals = {
'container_count': 0,
'object_count': 0,
'bytes_used': 0,
}
for policy_stat in policy_stats.values():
for key in policy_totals:
policy_totals[key] += policy_stat[key]
for key in policy_totals:
if policy_totals[key] == info[key]:
continue
raise InvalidAccountInfo(_(
'The total %(key)s for the container (%(total)s) does not '
'match the sum of %(key)s across policies (%(sum)s)')
% {'key': key,
'total': info[key],
'sum': policy_totals[key]})
def account_audit(self, path):
"""
Audits the given account path
:param path: the path to an account db
"""
start_time = time.time()
try:
broker = AccountBroker(path)
if not broker.is_deleted():
self.validate_per_policy_counts(broker)
self.logger.increment('passes')
self.account_passes += 1
self.logger.debug(_('Audit passed for %s'), broker)
except InvalidAccountInfo as e:
self.logger.increment('failures')
self.account_failures += 1
self.logger.error(
_('Audit Failed for %(path)s: %(err)s'),
{'path': path, 'err': str(e)})
except (Exception, Timeout):
self.logger.increment('failures')
self.account_failures += 1
self.logger.exception(_('ERROR Could not get account info %s'),
path)
self.logger.timing_since('timing', start_time)