swift/swift/account/auditor.py

195 lines
7.9 KiB
Python

# Copyright (c) 2010 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 socket
import time
from random import choice, random
from urllib import quote
from eventlet import Timeout
from swift.account import server as account_server
from swift.common.db import AccountBroker
from swift.common.bufferedhttp import http_connect
from swift.common.exceptions import ConnectionTimeout
from swift.common.ring import Ring
from swift.common.utils import get_logger
class AuditException(Exception):
pass
class AccountAuditor(object):
"""Audit accounts."""
def __init__(self, server_conf, auditor_conf):
self.logger = get_logger(auditor_conf, 'account-auditor')
self.devices = server_conf.get('devices', '/srv/node')
self.mount_check = server_conf.get('mount_check', 'true').lower() in \
('true', 't', '1', 'on', 'yes', 'y')
self.interval = int(auditor_conf.get('interval', 1800))
swift_dir = server_conf.get('swift_dir', '/etc/swift')
self.container_ring_path = os.path.join(swift_dir, 'container.ring.gz')
self.container_ring = None
self.node_timeout = int(auditor_conf.get('node_timeout', 10))
self.conn_timeout = float(auditor_conf.get('conn_timeout', 0.5))
self.max_container_count = \
int(auditor_conf.get('max_container_count', 100))
self.container_passes = 0
self.container_failures = 0
self.container_errors = 0
def get_container_ring(self):
"""
Get the container ring. Load the ring if neccesary.
:returns: container ring
"""
if not self.container_ring:
self.logger.debug(
'Loading container ring from %s' % self.container_ring_path)
self.container_ring = Ring(self.container_ring_path)
return self.container_ring
def audit_forever(self): # pragma: no cover
"""Run the account audit until stopped."""
reported = time.time()
time.sleep(random() * self.interval)
while True:
begin = time.time()
pids = []
for device in os.listdir(self.devices):
if self.mount_check and not \
os.path.ismount(os.path.join(self.devices, device)):
self.logger.debug(
'Skipping %s as it is not mounted' % device)
continue
self.account_audit(device)
if time.time() - reported >= 3600: # once an hour
self.logger.info(
'Since %s: Remote audits with containers: %s passed '
'audit, %s failed audit, %s errors' %
(time.ctime(reported), self.container_passes,
self.container_failures, self.container_errors))
reported = time.time()
self.container_passes = 0
self.container_failures = 0
self.container_errors = 0
elapsed = time.time() - begin
if elapsed < self.interval:
time.sleep(self.interval - elapsed)
def audit_once(self):
"""Run the account audit once."""
self.logger.info('Begin account audit "once" mode')
begin = time.time()
for device in os.listdir(self.devices):
if self.mount_check and \
not os.path.ismount(os.path.join(self.devices, device)):
self.logger.debug(
'Skipping %s as it is not mounted' % device)
continue
self.account_audit(device)
elapsed = time.time() - begin
self.logger.info(
'Account audit "once" mode completed: %.02fs' % elapsed)
def account_audit(self, device):
"""
Audit any accounts found on the device.
:param device: device to audit
"""
datadir = os.path.join(self.devices, device, account_server.DATADIR)
if not os.path.exists(datadir):
return
broker = None
partition = None
attempts = 100
while not broker and attempts:
attempts -= 1
try:
partition = choice(os.listdir(datadir))
fpath = os.path.join(datadir, partition)
if not os.path.isdir(fpath):
continue
suffix = choice(os.listdir(fpath))
fpath = os.path.join(fpath, suffix)
if not os.path.isdir(fpath):
continue
hsh = choice(os.listdir(fpath))
fpath = os.path.join(fpath, hsh)
if not os.path.isdir(fpath):
continue
except IndexError:
continue
for fname in sorted(os.listdir(fpath), reverse=True):
if fname.endswith('.db'):
broker = AccountBroker(os.path.join(fpath, fname))
if broker.is_deleted():
broker = None
break
if not broker:
return
info = broker.get_info()
for container in broker.get_random_containers(
max_count=self.max_container_count):
found = False
results = []
part, nodes = \
self.get_container_ring().get_nodes(info['account'], container)
for node in nodes:
try:
with ConnectionTimeout(self.conn_timeout):
conn = http_connect(node['ip'], node['port'],
node['device'], part, 'HEAD',
'/%s/%s' % (info['account'], container))
with Timeout(self.node_timeout):
resp = conn.getresponse()
body = resp.read()
if 200 <= resp.status <= 299:
found = True
break
else:
results.append('%s:%s/%s %s %s' % (node['ip'],
node['port'], node['device'], resp.status,
resp.reason))
except socket.error, err:
results.append('%s:%s/%s Socket Error: %s' % (node['ip'],
node['port'], node['device'], err))
except ConnectionTimeout:
results.append(
'%(ip)s:%(port)s/%(device)s ConnectionTimeout' % node)
except Timeout:
results.append('%(ip)s:%(port)s/%(device)s Timeout' % node)
except Exception, err:
self.logger.exception('ERROR With remote server '
'%(ip)s:%(port)s/%(device)s' % node)
results.append('%s:%s/%s Exception: %s' % (node['ip'],
node['port'], node['device'], err))
if found:
self.container_passes += 1
self.logger.debug('Audit passed for /%s %s container %s' %
(info['account'], broker.db_file, container))
else:
self.container_errors += 1
self.logger.error('ERROR Could not find container /%s/%s '
'referenced by %s on any of the primary container '
'servers it should be on: %s' % (info['account'],
container, broker.db_file, results))