205 lines
8.0 KiB
Python
205 lines
8.0 KiB
Python
# Copyright (c) 2010-2011 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.
|
|
|
|
from datetime import datetime
|
|
import hashlib
|
|
import os
|
|
import shutil
|
|
from slogging import common
|
|
import sqlite3
|
|
|
|
from swift.account.backend import AccountBroker
|
|
from swift.account.server import DATADIR as account_server_data_dir
|
|
from swift.common.constraints import check_mount
|
|
from swift.common.daemon import Daemon
|
|
from swift.common import utils
|
|
from swift.container.backend import ContainerBroker
|
|
from swift.container.server import DATADIR as container_server_data_dir
|
|
|
|
import time
|
|
import urllib
|
|
|
|
|
|
local_zone = common.get_localzone()
|
|
|
|
|
|
class DatabaseStatsCollector(Daemon):
|
|
"""DatabaseStatsCollector class.
|
|
|
|
Extract storage stats from account databases on the
|
|
account storage nodes.
|
|
|
|
Any subclasses must define the function get_data.
|
|
"""
|
|
def __init__(self, stats_conf, stats_type, data_dir, filename_format):
|
|
super(DatabaseStatsCollector, self).__init__(stats_conf)
|
|
self.stats_type = stats_type
|
|
self.data_dir = data_dir
|
|
self.filename_format = filename_format
|
|
self.devices = stats_conf.get('devices', '/srv/node')
|
|
self.mount_check = stats_conf.get('mount_check',
|
|
'true').lower() in utils.TRUE_VALUES
|
|
self.target_dir = stats_conf.get('log_dir', '/var/log/swift')
|
|
utils.mkdirs(self.target_dir)
|
|
self.logger = utils.get_logger(stats_conf,
|
|
log_route='%s-stats' % stats_type)
|
|
self.time_zone = common.get_time_zone(stats_conf, self.logger,
|
|
'time_zone', local_zone)
|
|
|
|
def run_once(self, *args, **kwargs):
|
|
self.logger.info(_("Gathering %s stats") % self.stats_type)
|
|
start = time.time()
|
|
self.find_and_process()
|
|
|
|
msg = _("Gathering %(stats_type)s stats complete "
|
|
"(%(time)0.2f minutes)") % {'stats_type': self.stats_type,
|
|
'time': (time.time() - start) / 60}
|
|
self.logger.info(msg)
|
|
|
|
def get_data(self):
|
|
raise NotImplementedError('Subclasses must override')
|
|
|
|
def get_header(self):
|
|
raise NotImplementedError('Subclasses must override')
|
|
|
|
def find_and_process(self):
|
|
src_filename = datetime.now(self.time_zone).strftime(
|
|
self.filename_format)
|
|
working_dir = os.path.join(self.target_dir,
|
|
'.%-stats_tmp' % self.stats_type)
|
|
shutil.rmtree(working_dir, ignore_errors=True)
|
|
utils.mkdirs(working_dir)
|
|
tmp_filename = os.path.join(working_dir, src_filename)
|
|
hasher = hashlib.md5()
|
|
try:
|
|
with open(tmp_filename, 'wb') as statfile:
|
|
statfile.write(self.get_header())
|
|
for device in os.listdir(self.devices):
|
|
if self.mount_check and not check_mount(self.devices,
|
|
device):
|
|
self.logger.error(
|
|
_("Device %s is not mounted, skipping.") % device)
|
|
continue
|
|
db_dir = os.path.join(self.devices, device, self.data_dir)
|
|
if not os.path.exists(db_dir):
|
|
self.logger.debug(
|
|
_("Path %s does not exist, skipping.") % db_dir)
|
|
continue
|
|
for root, dirs, files in os.walk(db_dir, topdown=False):
|
|
for filename in files:
|
|
if filename.endswith('.db'):
|
|
db_path = os.path.join(root, filename)
|
|
try:
|
|
line_data = self.get_data(db_path)
|
|
except sqlite3.Error as err:
|
|
values = {'db_path': db_path, 'err': err}
|
|
msg = _("Error accessing db "
|
|
"%(db_path)s: %(err)s") % values
|
|
self.logger.info(msg)
|
|
continue
|
|
if line_data:
|
|
statfile.write(line_data)
|
|
hasher.update(line_data)
|
|
|
|
src_filename += hasher.hexdigest()
|
|
utils.renamer(tmp_filename,
|
|
os.path.join(self.target_dir, src_filename))
|
|
finally:
|
|
shutil.rmtree(working_dir, ignore_errors=True)
|
|
|
|
|
|
class AccountStatsCollector(DatabaseStatsCollector):
|
|
"""AccountStatsCollector class.
|
|
|
|
Extract storage stats from account databases on the account
|
|
storage nodes
|
|
"""
|
|
def __init__(self, stats_conf):
|
|
super(AccountStatsCollector, self).__init__(stats_conf, 'account',
|
|
account_server_data_dir,
|
|
'stats-%Y%m%d%H_')
|
|
|
|
def get_data(self, db_path):
|
|
"""Data for generated csv has the following columns:
|
|
|
|
Account Hash, Container Count, Object Count, Bytes Used
|
|
|
|
:raises sqlite3.Error: does not catch errors connecting to db
|
|
"""
|
|
line_data = None
|
|
broker = AccountBroker(db_path)
|
|
if not broker.is_deleted():
|
|
info = broker.get_info()
|
|
line_data = '"%s",%d,%d,%d\n' % (info['account'],
|
|
info['container_count'],
|
|
info['object_count'],
|
|
info['bytes_used'])
|
|
return line_data
|
|
|
|
def get_header(self):
|
|
return ''
|
|
|
|
|
|
class ContainerStatsCollector(DatabaseStatsCollector):
|
|
"""ContainerStatsCollector class
|
|
|
|
Extract storage stats from container databases on the container
|
|
storage nodes
|
|
"""
|
|
def __init__(self, stats_conf):
|
|
super(ContainerStatsCollector, self).__init__(
|
|
stats_conf, 'container',
|
|
container_server_data_dir,
|
|
'container-stats-%Y%m%d%H_')
|
|
# webob calls title on all the header keys
|
|
self.metadata_keys = [
|
|
'X-Container-Meta-%s' % mkey.strip().title()
|
|
for mkey in stats_conf.get('metadata_keys', '').split(',')
|
|
if mkey.strip()]
|
|
|
|
def get_header(self):
|
|
header = 'Account Hash,Container Name,Object Count,Bytes Used'
|
|
if self.metadata_keys:
|
|
xtra_headers = ','.join(self.metadata_keys)
|
|
header += ',%s' % xtra_headers
|
|
header += '\n'
|
|
return header
|
|
|
|
def get_data(self, db_path):
|
|
"""Data for generated csv has the following columns:
|
|
|
|
Account Hash, Container Name, Object Count, Bytes Used
|
|
|
|
This will just collect whether or not the metadata is set
|
|
using a 1 or ''.
|
|
|
|
:raises sqlite3.Error: does not catch errors connecting to db
|
|
"""
|
|
line_data = None
|
|
broker = ContainerBroker(db_path)
|
|
if not broker.is_deleted():
|
|
info = broker.get_info()
|
|
encoded_container_name = urllib.quote(info['container'])
|
|
line_data = '"%s","%s",%d,%d' % (
|
|
info['account'], encoded_container_name,
|
|
info['object_count'], info['bytes_used'])
|
|
if self.metadata_keys:
|
|
metadata_results = ','.join(
|
|
[broker.metadata.get(mkey) and '1' or ''
|
|
for mkey in self.metadata_keys])
|
|
line_data += ',%s' % metadata_results
|
|
line_data += '\n'
|
|
return line_data
|