openstack
/
swift
Code Issues Proposed changes

Add policy support to dispersion tools 

Doesn't work for anything other than policy 0. updated to allow user
to specify policy name on cmd line (as with object-info) which
then makes populate/report work with 3x, 2x, or EC style policies

Change-Id: Ib7c298f0f6d666b1ecca25315b88539f45cf9f95
Closes-Bug: 1458688
This commit is contained in:
paul luse 2015-05-25 14:41:42 -07:00 committed by Kota Tsuyuzaki
parent e9a032f896
commit e6165a7879
3 changed files with 60 additions and 19 deletions
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32
bin/swift-dispersion-populate
View File

@ -31,16 +31,17 @@ except ImportError:
from swift.common.internal_client import SimpleClient
from swift.common.ring import Ring
from swift.common.utils import compute_eta, get_time_units, config_true_value
from swift.common.storage_policy import POLICIES
insecure = False
def put_container(connpool, container, report):
def put_container(connpool, container, report, headers):
global retries_done
try:
with connpool.item() as conn:
conn.put_container(container)
conn.put_container(container, headers=headers)
retries_done += conn.attempts - 1
if report:
report(True)
@ -105,6 +106,9 @@ Usage: %%prog [options] [conf_file]
help='No overlap of partitions if running populate \
more than once. Will increase coverage by amount shown \
in dispersion.conf file')
parser.add_option('-P', '--policy-name', dest='policy_name',
help="Specify storage policy name")
options, args = parser.parse_args()
if args:
@ -114,6 +118,15 @@ Usage: %%prog [options] [conf_file]
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')
dispersion_coverage = float(conf.get('dispersion_coverage', 1))
retries = int(conf.get('retries', 5))
@ -141,6 +154,8 @@ Usage: %%prog [options] [conf_file]
insecure=insecure)
account = url.rsplit('/', 1)[1]
connpool = Pool(max_size=concurrency)
headers = {}
headers['X-Storage-Policy'] = policy.name
connpool.create = lambda: SimpleClient(
url=url, token=token, retries=retries)
@ -152,7 +167,7 @@ Usage: %%prog [options] [conf_file]
if options.no_overlap:
with connpool.item() as conn:
containers = [cont['name'] for cont in conn.get_account(
prefix='dispersion_', full_listing=True)[1]]
prefix='dispersion_%d' % policy.idx, full_listing=True)[1]]
containers_listed = len(containers)
if containers_listed > 0:
for container in containers:
@ -170,11 +185,12 @@ Usage: %%prog [options] [conf_file]
next_report += 2
suffix = 0
while need_to_queue >= 1 and parts_left:
container = 'dispersion_%d' % suffix
container = 'dispersion_%d_%d' % (policy.idx, suffix)
part = container_ring.get_part(account, container)
if part in parts_left:
if suffix >= options.container_suffix_start:
coropool.spawn(put_container, connpool, container, report)
coropool.spawn(put_container, connpool, container, report,
headers)
sleep()
else:
report(True)
@ -195,9 +211,9 @@ Usage: %%prog [options] [conf_file]
stdout.flush()
if object_populate:
container = 'dispersion_objects'
put_container(connpool, container, None)
object_ring = Ring(swift_dir, ring_name='object')
container = 'dispersion_objects_%d' % policy.idx
put_container(connpool, container, None, headers)
object_ring = Ring(swift_dir, ring_name=policy.ring_name)
parts_left = dict((x, x) for x in xrange(object_ring.partition_count))
if options.no_overlap:

41
bin/swift-dispersion-report
View File

@ -36,6 +36,7 @@ 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 = []
@ -73,10 +74,10 @@ def get_error_log(prefix):
def container_dispersion_report(coropool, connpool, account, container_ring,
retries, output_missing_partitions):
retries, output_missing_partitions, policy):
with connpool.item() as conn:
containers = [c['name'] for c in conn.get_account(
prefix='dispersion_', full_listing=True)[1]]
prefix='dispersion_%d' % policy.idx, full_listing=True)[1]]
containers_listed = len(containers)
if not containers_listed:
print >>stderr, 'No containers to query. Has ' \
@ -169,8 +170,8 @@ def container_dispersion_report(coropool, connpool, account, container_ring,
def object_dispersion_report(coropool, connpool, account, object_ring,
retries, output_missing_partitions):
container = 'dispersion_objects'
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(
@ -196,6 +197,11 @@ def object_dispersion_report(coropool, connpool, account, object_ring,
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:
@ -203,7 +209,8 @@ def object_dispersion_report(coropool, connpool, account, object_ring,
try:
attempts, _junk = direct_client.retry(
direct_client.direct_head_object, node, part, account,
container, obj, error_log=error_log, retries=retries)
container, obj, error_log=error_log, retries=retries,
headers=headers)
retries_done[0] += attempts - 1
found_count += 1
except ClientException as err:
@ -290,9 +297,9 @@ def missing_string(partition_count, missing_copies, copy_count):
verb_string = 'were'
partition_string = 'partitions'
copy_string = 'copy'
if missing_copies > 1:
copy_string = 'copies'
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,
@ -323,6 +330,9 @@ Usage: %%prog [options] [conf_file]
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:
@ -332,6 +342,15 @@ Usage: %%prog [options] [conf_file]
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))
@ -364,16 +383,16 @@ Usage: %%prog [options] [conf_file]
url=url, token=token, retries=retries)
container_ring = Ring(swift_dir, ring_name='container')
object_ring = Ring(swift_dir, ring_name='object')
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)
options.partitions, policy)
if object_report:
output['object'] = object_dispersion_report(
coropool, connpool, account, object_ring, retries,
options.partitions)
options.partitions, policy)
if json_output:
print json.dumps(output)

6
doc/source/admin_guide.rst
View File

@ -339,6 +339,12 @@ allows it to be more easily consumed by third party utilities::
$ swift-dispersion-report -j
{"object": {"retries:": 0, "missing_two": 0, "copies_found": 7863, "missing_one": 0, "copies_expected": 7863, "pct_found": 100.0, "overlapping": 0, "missing_all": 0}, "container": {"retries:": 0, "missing_two": 0, "copies_found": 12534, "missing_one": 0, "copies_expected": 12534, "pct_found": 100.0, "overlapping": 15, "missing_all": 0}}
Note that you may select which storage policy to use by setting the option
'--policy-name silver' or '-P silver' (silver is the example policy name here).
If no policy is specified, the default will be used per the swift.conf file.
When you specify a policy the containers created also include the policy index,
thus even when running a container_only report, you will need to specify the
policy not using the default.
-----------------------------------
Geographically Distributed Clusters