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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 io import StringIO
from tempfile import mkdtemp
from textwrap import dedent
import os
import shutil
import unittest
import uuid
from swift.common import internal_client
from test.probe.brain import BrainSplitter
from test.probe.common import kill_servers, reset_environment, \
get_to_final_state
class Test(unittest.TestCase):
def setUp(self):
"""
Reset all environment and start all servers.
"""
(self.pids, self.port2server, self.account_ring, self.container_ring,
self.object_ring, self.policy, self.url, self.token,
self.account, self.configs) = reset_environment()
self.container_name = 'container-%s' % uuid.uuid4()
self.object_name = 'object-%s' % uuid.uuid4()
self.brain = BrainSplitter(self.url, self.token, self.container_name,
self.object_name, 'object')
self.tempdir = mkdtemp()
conf_path = os.path.join(self.tempdir, 'internal_client.conf')
conf_body = """
[DEFAULT]
swift_dir = /etc/swift
[pipeline:main]
pipeline = catch_errors cache proxy-server
[app:proxy-server]
use = egg:swift#proxy
object_post_as_copy = false
[filter:cache]
use = egg:swift#memcache
[filter:catch_errors]
use = egg:swift#catch_errors
"""
with open(conf_path, 'w') as f:
f.write(dedent(conf_body))
self.int_client = internal_client.InternalClient(conf_path, 'test', 1)
def tearDown(self):
"""
Stop all servers.
"""
kill_servers(self.port2server, self.pids)
shutil.rmtree(self.tempdir)
def _put_object(self, headers=None):
headers = headers or {}
self.int_client.upload_object(StringIO(u'stuff'), self.account,
self.container_name,
self.object_name, headers)
def _post_object(self, headers):
self.int_client.set_object_metadata(self.account, self.container_name,
self.object_name, headers)
def _get_object_metadata(self):
return self.int_client.get_object_metadata(self.account,
self.container_name,
self.object_name)
def test_sysmeta_after_replication_with_subsequent_post(self):
sysmeta = {'x-object-sysmeta-foo': 'sysmeta-foo'}
usermeta = {'x-object-meta-bar': 'meta-bar'}
self.brain.put_container(policy_index=0)
# put object
self._put_object()
# put newer object with sysmeta to first server subset
self.brain.stop_primary_half()
self._put_object(headers=sysmeta)
metadata = self._get_object_metadata()
for key in sysmeta:
self.assertTrue(key in metadata)
self.assertEqual(metadata[key], sysmeta[key])
self.brain.start_primary_half()
# post some user meta to second server subset
self.brain.stop_handoff_half()
self._post_object(usermeta)
metadata = self._get_object_metadata()
for key in usermeta:
self.assertTrue(key in metadata)
self.assertEqual(metadata[key], usermeta[key])
for key in sysmeta:
self.assertFalse(key in metadata)
self.brain.start_handoff_half()
# run replicator
get_to_final_state()
# check user metadata has been replicated to first server subset
# and sysmeta is unchanged
self.brain.stop_primary_half()
metadata = self._get_object_metadata()
expected = dict(sysmeta)
expected.update(usermeta)
for key in expected.keys():
self.assertTrue(key in metadata, key)
self.assertEqual(metadata[key], expected[key])
self.brain.start_primary_half()
# check user metadata and sysmeta both on second server subset
self.brain.stop_handoff_half()
metadata = self._get_object_metadata()
for key in expected.keys():
self.assertTrue(key in metadata, key)
self.assertEqual(metadata[key], expected[key])
def test_sysmeta_after_replication_with_prior_post(self):
sysmeta = {'x-object-sysmeta-foo': 'sysmeta-foo'}
usermeta = {'x-object-meta-bar': 'meta-bar'}
self.brain.put_container(policy_index=0)
# put object
self._put_object()
# put user meta to first server subset
self.brain.stop_handoff_half()
self._post_object(headers=usermeta)
metadata = self._get_object_metadata()
for key in usermeta:
self.assertTrue(key in metadata)
self.assertEqual(metadata[key], usermeta[key])
self.brain.start_handoff_half()
# put newer object with sysmeta to second server subset
self.brain.stop_primary_half()
self._put_object(headers=sysmeta)
metadata = self._get_object_metadata()
for key in sysmeta:
self.assertTrue(key in metadata)
self.assertEqual(metadata[key], sysmeta[key])
self.brain.start_primary_half()
# run replicator
get_to_final_state()
# check stale user metadata is not replicated to first server subset
# and sysmeta is unchanged
self.brain.stop_primary_half()
metadata = self._get_object_metadata()
for key in sysmeta:
self.assertTrue(key in metadata)
self.assertEqual(metadata[key], sysmeta[key])
for key in usermeta:
self.assertFalse(key in metadata)
self.brain.start_primary_half()
# check stale user metadata is removed from second server subset
# and sysmeta is replicated
self.brain.stop_handoff_half()
metadata = self._get_object_metadata()
for key in sysmeta:
self.assertTrue(key in metadata)
self.assertEqual(metadata[key], sysmeta[key])
for key in usermeta:
self.assertFalse(key in metadata)
if __name__ == "__main__":
unittest.main()
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