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#!/usr/bin/python -u
# 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.
from unittest import main
import random
from swiftclient import client
from swift.common import direct_client
from swift.common.request_helpers import get_reserved_name
from swift.obj import reconstructor
from test.probe.common import ReplProbeTest, ECProbeTest
class TestObjectVersioning(ReplProbeTest):
def _assert_account_level(self, container_name, hdr_cont_count,
hdr_obj_count, hdr_bytes, cont_count,
cont_bytes):
headers, containers = client.get_account(self.url, self.token)
self.assertEqual(hdr_cont_count, headers['x-account-container-count'])
self.assertEqual(hdr_obj_count, headers['x-account-object-count'])
self.assertEqual(hdr_bytes, headers['x-account-bytes-used'])
self.assertEqual(len(containers), 1)
container = containers[0]
self.assertEqual(container_name, container['name'])
self.assertEqual(cont_count, container['count'])
self.assertEqual(cont_bytes, container['bytes'])
def test_account_listing(self):
versions_header_key = 'X-Versions-Enabled'
# Create container1
container_name = 'container1'
obj_name = 'object1'
client.put_container(self.url, self.token, container_name)
# Assert account level sees it
self._assert_account_level(
container_name,
hdr_cont_count='1',
hdr_obj_count='0',
hdr_bytes='0',
cont_count=0,
cont_bytes=0)
# Enable versioning
hdrs = {versions_header_key: 'True'}
client.post_container(self.url, self.token, container_name, hdrs)
# write multiple versions of same obj
client.put_object(self.url, self.token, container_name, obj_name,
'version1')
client.put_object(self.url, self.token, container_name, obj_name,
'version2')
# Assert account level doesn't see object data yet, but it
# does see the update for the hidden container
self._assert_account_level(
container_name,
hdr_cont_count='2',
hdr_obj_count='0',
hdr_bytes='0',
cont_count=0,
cont_bytes=0)
# Get to final state
self.get_to_final_state()
# Assert account level now sees updated values
# N.B: Note difference in values between header and container listing
# header object count is counting both symlink + object versions
# listing count is counting only symlink (in primary container)
self._assert_account_level(
container_name,
hdr_cont_count='2',
hdr_obj_count='3',
hdr_bytes='16',
cont_count=1,
cont_bytes=16)
client.delete_object(self.url, self.token, container_name, obj_name)
_headers, current_versions = client.get_container(
self.url, self.token, container_name)
self.assertEqual(len(current_versions), 0)
_headers, all_versions = client.get_container(
self.url, self.token, container_name, query_string='versions')
self.assertEqual(len(all_versions), 3)
# directly delete primary container to leave an orphan hidden
# container
self.direct_delete_container(container=container_name)
# Get to final state
self.get_to_final_state()
# The container count decreases, as well as object count. But bytes
# do not. The discrepancy between header object count, container
# object count and bytes should indicate orphan hidden container is
# still around consuming storage
self._assert_account_level(
container_name,
hdr_cont_count='1',
hdr_obj_count='3',
hdr_bytes='16',
cont_count=0,
cont_bytes=16)
# Can't HEAD or list anything, though
with self.assertRaises(client.ClientException) as caught:
client.head_container(self.url, self.token, container_name)
self.assertEqual(caught.exception.http_status, 404)
with self.assertRaises(client.ClientException) as caught:
client.get_container(self.url, self.token, container_name)
self.assertEqual(caught.exception.http_status, 404)
with self.assertRaises(client.ClientException) as caught:
client.get_container(self.url, self.token, container_name,
query_string='versions')
self.assertEqual(caught.exception.http_status, 404)
with self.assertRaises(client.ClientException) as caught:
client.get_object(
self.url, self.token, container_name, all_versions[1]['name'],
query_string='version-id=%s' % all_versions[1]['version_id'])
# A little funny -- maybe this should 404 instead?
self.assertEqual(caught.exception.http_status, 400)
# Fix isn't too bad -- just make the container again!
client.put_container(self.url, self.token, container_name)
_headers, current_versions = client.get_container(
self.url, self.token, container_name)
self.assertEqual(len(current_versions), 0)
_headers, all_versions = client.get_container(
self.url, self.token, container_name, query_string='versions')
self.assertEqual(len(all_versions), 3)
# ... but to actually *access* the versions, you have to enable
# versioning again
with self.assertRaises(client.ClientException) as caught:
client.get_object(
self.url, self.token, container_name, all_versions[1]['name'],
query_string='version-id=%s' % all_versions[1]['version_id'])
self.assertEqual(caught.exception.http_status, 400)
self.assertIn(b'version-aware operations require',
caught.exception.http_response_content)
client.post_container(self.url, self.token, container_name,
headers={'X-Versions-Enabled': 'true'})
client.get_object(
self.url, self.token, container_name, all_versions[1]['name'],
query_string='version-id=%s' % all_versions[1]['version_id'])
def test_missing_versions_container(self):
versions_header_key = 'X-Versions-Enabled'
# Create container1
container_name = 'container1'
obj_name = 'object1'
client.put_container(self.url, self.token, container_name)
# Write some data
client.put_object(self.url, self.token, container_name, obj_name,
b'null version')
# Enable versioning
hdrs = {versions_header_key: 'True'}
client.post_container(self.url, self.token, container_name, hdrs)
# But directly delete hidden container to leave an orphan primary
# container
self.direct_delete_container(container=get_reserved_name(
'versions', container_name))
# Could be worse; we can still list versions and GET data
_headers, all_versions = client.get_container(
self.url, self.token, container_name, query_string='versions')
self.assertEqual(len(all_versions), 1)
self.assertEqual(all_versions[0]['name'], obj_name)
self.assertEqual(all_versions[0]['version_id'], 'null')
_headers, data = client.get_object(
self.url, self.token, container_name, obj_name)
self.assertEqual(data, b'null version')
_headers, data = client.get_object(
self.url, self.token, container_name, obj_name,
query_string='version-id=null')
self.assertEqual(data, b'null version')
# But most any write is going to fail
with self.assertRaises(client.ClientException) as caught:
client.put_object(self.url, self.token, container_name, obj_name,
b'new version')
self.assertEqual(caught.exception.http_status, 500)
with self.assertRaises(client.ClientException) as caught:
client.delete_object(self.url, self.token, container_name,
obj_name)
self.assertEqual(caught.exception.http_status, 500)
# Version-aware delete can work, though!
client.delete_object(self.url, self.token, container_name, obj_name,
query_string='version-id=null')
# Re-enabling versioning should square us
hdrs = {versions_header_key: 'True'}
client.post_container(self.url, self.token, container_name, hdrs)
client.put_object(self.url, self.token, container_name, obj_name,
b'new version')
_headers, all_versions = client.get_container(
self.url, self.token, container_name, query_string='versions')
self.assertEqual(len(all_versions), 1)
self.assertEqual(all_versions[0]['name'], obj_name)
self.assertNotEqual(all_versions[0]['version_id'], 'null')
_headers, data = client.get_object(
self.url, self.token, container_name, obj_name)
self.assertEqual(data, b'new version')
class TestECObjectVersioning(ECProbeTest):
def setUp(self):
super(TestECObjectVersioning, self).setUp()
self.part, self.nodes = self.object_ring.get_nodes(
self.account, self.container_name, self.object_name)
def test_versioning_with_metadata_replication(self):
# Enable versioning
client.put_container(self.url, self.token, self.container_name,
headers={
'X-Storage-Policy': self.policy.name,
'X-Versions-Enabled': 'True',
})
# create version with metadata in a handoff location
failed_primary = random.choice(self.nodes)
failed_primary_device_path = self.device_dir(failed_primary)
self.kill_drive(failed_primary_device_path)
headers = {'x-object-meta-foo': 'meta-foo'}
client.put_object(self.url, self.token, self.container_name,
self.object_name, contents='some data',
headers=headers)
headers_post = {'x-object-meta-bar': 'meta-bar'}
client.post_object(self.url, self.token, self.container_name,
self.object_name, headers=headers_post)
# find the handoff
primary_ids = [n['id'] for n in self.nodes]
for handoff in self.object_ring.devs:
if handoff['id'] in primary_ids:
continue
try:
headers, etag = self.direct_get(handoff, self.part)
except direct_client.DirectClientException as err:
if err.http_status != 404:
raise
else:
break
else:
self.fail('unable to find object on handoffs')
# we want to repair the fault, but avoid doing the handoff revert
self.revive_drive(failed_primary_device_path)
handoff_config = self.config_number(handoff)
failed_config = self.config_number(failed_primary)
partner_nodes = reconstructor._get_partners(
failed_primary['index'], self.nodes)
random.shuffle(partner_nodes)
for partner in partner_nodes:
fix_config = self.config_number(partner)
if fix_config not in (handoff_config, failed_config):
break
else:
self.fail('unable to find fix_config in %r excluding %r & %r' % (
[(d['device'], self.config_number(d)) for d in partner_nodes],
handoff_config, failed_config))
self.reconstructor.once(number=fix_config)
# validate object in all locations
missing = []
etags = set()
metadata = []
for node in self.nodes:
try:
headers, etag = self.direct_get(node, self.part)
except direct_client.DirectClientException as err:
if err.http_status != 404:
raise
missing.append(node)
continue
etags.add(headers['X-Object-Sysmeta-Ec-Etag'])
metadata.append(headers.get(
'X-Object-Transient-Sysmeta-Crypto-Meta-Bar',
headers['X-Object-Meta-Bar']))
if missing:
self.fail('Ran reconstructor config #%s to repair %r but '
'found 404 on primary: %r' % (
fix_config, failed_primary['device'],
[d['device'] for d in missing]))
self.assertEqual(1, len(etags))
if 'X-Object-Transient-Sysmeta-Crypto-Meta-Bar' in headers:
self.assertEqual(len(self.nodes), len(metadata))
self.assertEqual(1, len(set(metadata)))
else:
self.assertEqual(['meta-bar'] * len(self.nodes), metadata)
# process revert
self.reconstructor.once(number=handoff_config)
# validate object (still?) in primary locations
etags = set()
metadata = []
for node in self.nodes:
headers, etag = self.direct_get(node, self.part)
etags.add(headers['X-Object-Sysmeta-Ec-Etag'])
metadata.append(headers.get(
'X-Object-Transient-Sysmeta-Crypto-Meta-Bar',
headers['X-Object-Meta-Bar']))
self.assertEqual(1, len(etags))
if 'X-Object-Transient-Sysmeta-Crypto-Meta-Bar' in headers:
self.assertEqual(len(self.nodes), len(metadata))
self.assertEqual(1, len(set(metadata)))
else:
self.assertEqual(['meta-bar'] * len(self.nodes), metadata)
# and removed form handoff
with self.assertRaises(direct_client.DirectClientException) as ctx:
headers, etag = self.direct_get(handoff, self.part)
self.assertEqual(ctx.exception.http_status, 404)
if __name__ == '__main__':
main()
|
