openstack/swift
Code Issues Proposed changes
46d61a4dcd
swift/bin/swift-dispersion-report
Hisashi Osanai 23c7a58f8f Fix ClientException handling in Container Sync 
swift/container/sync.py uses swift.common.internal_client.delete_object
and put_object and expected these methods raise ClientException.
But delete_object and put_object never raise the exception so this patch
raises ClientException when urllib2 library raises HTTPError.

Co-Authored-By: Eran Rom <eranr@il.ibm.com>
Closes-Bug: #1419901
Change-Id: I58cbf77988979a07998a46d9d81be84d29b0d9bf
2016-01-07 10:17:20 +00:00

406 lines
17 KiB
Python
Executable File
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#!/usr/bin/env python
# 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 json
from collections import defaultdict
from six.moves.configparser import ConfigParser
from optparse import OptionParser
from sys import exit, stdout, stderr
from time import time
from eventlet import GreenPool, hubs, patcher, Timeout
from eventlet.pools import Pool
from swift.common import direct_client
try:
from swiftclient import get_auth
except ImportError:
from swift.common.internal_client import get_auth
from swift.common.internal_client import SimpleClient
from swift.common.ring import Ring
from swift.common.exceptions import ClientException
from swift.common.utils import compute_eta, get_time_units, config_true_value
from swift.common.storage_policy import POLICIES
unmounted = []
notfound = []
json_output = False
debug = False
insecure = False
def get_error_log(prefix):
def error_log(msg_or_exc):
global debug, unmounted, notfound
if hasattr(msg_or_exc, 'http_status'):
identifier = '%s:%s/%s' % (msg_or_exc.http_host,
msg_or_exc.http_port,
msg_or_exc.http_device)
if msg_or_exc.http_status == 507:
if identifier not in unmounted:
unmounted.append(identifier)
print >>stderr, 'ERROR: %s is unmounted -- This will ' \
'cause replicas designated for that device to be ' \
'considered missing until resolved or the ring is ' \
'updated.' % (identifier)
stderr.flush()
if debug and identifier not in notfound:
notfound.append(identifier)
print >>stderr, 'ERROR: %s returned a 404' % (identifier)
stderr.flush()
if not hasattr(msg_or_exc, 'http_status') or \
msg_or_exc.http_status not in (404, 507):
print >>stderr, 'ERROR: %s: %s' % (prefix, msg_or_exc)
stderr.flush()
return error_log
def container_dispersion_report(coropool, connpool, account, container_ring,
retries, output_missing_partitions, policy):
with connpool.item() as conn:
containers = [c['name'] for c in conn.get_account(
prefix='dispersion_%d' % policy.idx, full_listing=True)[1]]
containers_listed = len(containers)
if not containers_listed:
print >>stderr, 'No containers to query. Has ' \
'swift-dispersion-populate been run?'
stderr.flush()
return
retries_done = [0]
containers_queried = [0]
container_copies_missing = defaultdict(int)
container_copies_found = [0]
container_copies_expected = [0]
begun = time()
next_report = [time() + 2]
def direct(container, part, nodes):
found_count = 0
for node in nodes:
error_log = get_error_log('%(ip)s:%(port)s/%(device)s' % node)
try:
attempts, _junk = direct_client.retry(
direct_client.direct_head_container, node, part, account,
container, error_log=error_log, retries=retries)
retries_done[0] += attempts - 1
found_count += 1
except ClientException as err:
if err.http_status not in (404, 507):
error_log('Giving up on /%s/%s/%s: %s' % (part, account,
container, err))
except (Exception, Timeout) as err:
error_log('Giving up on /%s/%s/%s: %s' % (part, account,
container, err))
if output_missing_partitions and \
found_count < len(nodes):
missing = len(nodes) - found_count
print '\r\x1B[K',
stdout.flush()
print >>stderr, '# Container partition %s missing %s cop%s' % (
part, missing, 'y' if missing == 1 else 'ies')
container_copies_found[0] += found_count
containers_queried[0] += 1
container_copies_missing[len(nodes) - found_count] += 1
if time() >= next_report[0]:
next_report[0] = time() + 5
eta, eta_unit = compute_eta(begun, containers_queried[0],
containers_listed)
if not json_output:
print '\r\x1B[KQuerying containers: %d of %d, %d%s left, %d ' \
'retries' % (containers_queried[0], containers_listed,
round(eta), eta_unit, retries_done[0]),
stdout.flush()
container_parts = {}
for container in containers:
part, nodes = container_ring.get_nodes(account, container)
if part not in container_parts:
container_copies_expected[0] += len(nodes)
container_parts[part] = part
coropool.spawn(direct, container, part, nodes)
coropool.waitall()
distinct_partitions = len(container_parts)
copies_found = container_copies_found[0]
copies_expected = container_copies_expected[0]
value = 100.0 * copies_found / copies_expected
elapsed, elapsed_unit = get_time_units(time() - begun)
container_copies_missing.pop(0, None)
if not json_output:
print '\r\x1B[KQueried %d containers for dispersion reporting, ' \
'%d%s, %d retries' % (containers_listed, round(elapsed),
elapsed_unit, retries_done[0])
if containers_listed - distinct_partitions:
print 'There were %d overlapping partitions' % (
containers_listed - distinct_partitions)
for missing_copies, num_parts in container_copies_missing.items():
print missing_string(num_parts, missing_copies,
container_ring.replica_count)
print '%.02f%% of container copies found (%d of %d)' % (
value, copies_found, copies_expected)
print 'Sample represents %.02f%% of the container partition space' % (
100.0 * distinct_partitions / container_ring.partition_count)
stdout.flush()
return None
else:
results = {'retries': retries_done[0],
'overlapping': containers_listed - distinct_partitions,
'pct_found': value,
'copies_found': copies_found,
'copies_expected': copies_expected}
for missing_copies, num_parts in container_copies_missing.items():
results['missing_%d' % (missing_copies)] = num_parts
return results
def object_dispersion_report(coropool, connpool, account, object_ring,
retries, output_missing_partitions, policy):
container = 'dispersion_objects_%d' % policy.idx
with connpool.item() as conn:
try:
objects = [o['name'] for o in conn.get_container(
container, prefix='dispersion_', full_listing=True)[1]]
except ClientException as err:
if err.http_status != 404:
raise
print >>stderr, 'No objects to query. Has ' \
'swift-dispersion-populate been run?'
stderr.flush()
return
objects_listed = len(objects)
if not objects_listed:
print >>stderr, 'No objects to query. Has swift-dispersion-populate ' \
'been run?'
stderr.flush()
return
retries_done = [0]
objects_queried = [0]
object_copies_found = [0]
object_copies_expected = [0]
object_copies_missing = defaultdict(int)
begun = time()
next_report = [time() + 2]
headers = None
if policy is not None:
headers = {}
headers['X-Backend-Storage-Policy-Index'] = int(policy)
def direct(obj, part, nodes):
found_count = 0
for node in nodes:
error_log = get_error_log('%(ip)s:%(port)s/%(device)s' % node)
try:
attempts, _junk = direct_client.retry(
direct_client.direct_head_object, node, part, account,
container, obj, error_log=error_log, retries=retries,
headers=headers)
retries_done[0] += attempts - 1
found_count += 1
except ClientException as err:
if err.http_status not in (404, 507):
error_log('Giving up on /%s/%s/%s/%s: %s' % (part, account,
container, obj, err))
except (Exception, Timeout) as err:
error_log('Giving up on /%s/%s/%s/%s: %s' % (part, account,
container, obj, err))
if output_missing_partitions and \
found_count < len(nodes):
missing = len(nodes) - found_count
print '\r\x1B[K',
stdout.flush()
print >>stderr, '# Object partition %s missing %s cop%s' % (
part, missing, 'y' if missing == 1 else 'ies')
object_copies_found[0] += found_count
object_copies_missing[len(nodes) - found_count] += 1
objects_queried[0] += 1
if time() >= next_report[0]:
next_report[0] = time() + 5
eta, eta_unit = compute_eta(begun, objects_queried[0],
objects_listed)
if not json_output:
print '\r\x1B[KQuerying objects: %d of %d, %d%s left, %d ' \
'retries' % (objects_queried[0], objects_listed,
round(eta), eta_unit, retries_done[0]),
stdout.flush()
object_parts = {}
for obj in objects:
part, nodes = object_ring.get_nodes(account, container, obj)
if part not in object_parts:
object_copies_expected[0] += len(nodes)
object_parts[part] = part
coropool.spawn(direct, obj, part, nodes)
coropool.waitall()
distinct_partitions = len(object_parts)
copies_found = object_copies_found[0]
copies_expected = object_copies_expected[0]
value = 100.0 * copies_found / copies_expected
elapsed, elapsed_unit = get_time_units(time() - begun)
if not json_output:
print '\r\x1B[KQueried %d objects for dispersion reporting, ' \
'%d%s, %d retries' % (objects_listed, round(elapsed),
elapsed_unit, retries_done[0])
if objects_listed - distinct_partitions:
print 'There were %d overlapping partitions' % (
objects_listed - distinct_partitions)
for missing_copies, num_parts in object_copies_missing.items():
print missing_string(num_parts, missing_copies,
object_ring.replica_count)
print '%.02f%% of object copies found (%d of %d)' % \
(value, copies_found, copies_expected)
print 'Sample represents %.02f%% of the object partition space' % (
100.0 * distinct_partitions / object_ring.partition_count)
stdout.flush()
return None
else:
results = {'retries': retries_done[0],
'overlapping': objects_listed - distinct_partitions,
'pct_found': value,
'copies_found': copies_found,
'copies_expected': copies_expected}
for missing_copies, num_parts in object_copies_missing.items():
results['missing_%d' % (missing_copies,)] = num_parts
return results
def missing_string(partition_count, missing_copies, copy_count):
exclamations = ''
missing_string = str(missing_copies)
if missing_copies == copy_count:
exclamations = '!!! '
missing_string = 'all'
elif copy_count - missing_copies == 1:
exclamations = '! '
verb_string = 'was'
partition_string = 'partition'
if partition_count > 1:
verb_string = 'were'
partition_string = 'partitions'
copy_string = 'copies'
if missing_copies == 1:
copy_string = 'copy'
return '%sThere %s %d %s missing %s %s.' % (
exclamations, verb_string, partition_count, partition_string,
missing_string, copy_string
)
if __name__ == '__main__':
patcher.monkey_patch()
hubs.get_hub().debug_exceptions = False
conffile = '/etc/swift/dispersion.conf'
parser = OptionParser(usage='''
Usage: %%prog [options] [conf_file]
[conf_file] defaults to %s'''.strip() % conffile)
parser.add_option('-j', '--dump-json', action='store_true', default=False,
help='dump dispersion report in json format')
parser.add_option('-d', '--debug', action='store_true', default=False,
help='print 404s to standard error')
parser.add_option('-p', '--partitions', action='store_true', default=False,
help='print missing partitions to standard error')
parser.add_option('--container-only', action='store_true', default=False,
help='Only run container report')
parser.add_option('--object-only', action='store_true', default=False,
help='Only run object report')
parser.add_option('--insecure', action='store_true', default=False,
help='Allow accessing insecure keystone server. '
'The keystone\'s certificate will not be verified.')
parser.add_option('-P', '--policy-name', dest='policy_name',
help="Specify storage policy name")
options, args = parser.parse_args()
if args:
conffile = args.pop(0)
c = ConfigParser()
if not c.read(conffile):
exit('Unable to read config file: %s' % conffile)
conf = dict(c.items('dispersion'))
if options.policy_name is None:
policy = POLICIES.default
else:
policy = POLICIES.get_by_name(options.policy_name)
if policy is None:
exit('Unable to find policy: %s' % options.policy_name)
print 'Using storage policy: %s ' % policy.name
swift_dir = conf.get('swift_dir', '/etc/swift')
retries = int(conf.get('retries', 5))
concurrency = int(conf.get('concurrency', 25))
endpoint_type = str(conf.get('endpoint_type', 'publicURL'))
if options.dump_json or config_true_value(conf.get('dump_json', 'no')):
json_output = True
container_report = config_true_value(conf.get('container_report', 'yes')) \
and not options.object_only
object_report = config_true_value(conf.get('object_report', 'yes')) \
and not options.container_only
if not (object_report or container_report):
exit("Neither container or object report is set to run")
user_domain_name = str(conf.get('user_domain_name', ''))
project_domain_name = str(conf.get('project_domain_name', ''))
project_name = str(conf.get('project_name', ''))
insecure = options.insecure \
or config_true_value(conf.get('keystone_api_insecure', 'no'))
if options.debug:
debug = True
coropool = GreenPool(size=concurrency)
os_options = {'endpoint_type': endpoint_type}
if user_domain_name:
os_options['user_domain_name'] = user_domain_name
if project_domain_name:
os_options['project_domain_name'] = project_domain_name
if project_name:
os_options['project_name'] = project_name
url, token = get_auth(conf['auth_url'], conf['auth_user'],
conf['auth_key'],
auth_version=conf.get('auth_version', '1.0'),
os_options=os_options,
insecure=insecure)
account = url.rsplit('/', 1)[1]
connpool = Pool(max_size=concurrency)
connpool.create = lambda: SimpleClient(
url=url, token=token, retries=retries)
container_ring = Ring(swift_dir, ring_name='container')
object_ring = Ring(swift_dir, ring_name=policy.ring_name)
output = {}
if container_report:
output['container'] = container_dispersion_report(
coropool, connpool, account, container_ring, retries,
options.partitions, policy)
if object_report:
output['object'] = object_dispersion_report(
coropool, connpool, account, object_ring, retries,
options.partitions, policy)
if json_output:
print json.dumps(output)
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