OpenStack Storage (Swift)
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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.
import os
import shutil
from subprocess import call
from unittest import main, TestCase
from uuid import uuid4
from swiftclient import client
from swift.common import direct_client
from test.probe.common import kill_server, kill_servers, reset_environment,\
start_server
from swift.common.utils import readconf
class TestEmptyDevice(TestCase):
def setUp(self):
(self.pids, self.port2server, self.account_ring, self.container_ring,
self.object_ring, self.url, self.token,
self.account, self.configs) = reset_environment()
def tearDown(self):
kill_servers(self.port2server, self.pids)
def _get_objects_dir(self, onode):
device = onode['device']
node_id = (onode['port'] - 6000) / 10
obj_server_conf = readconf(self.configs['object'] % node_id)
devices = obj_server_conf['app:object-server']['devices']
obj_dir = '%s/%s' % (devices, device)
return obj_dir
def test_main(self):
# Create container
# Kill one container/obj primary server
# Delete the "objects" directory on the primary server
# Create container/obj (goes to two primary servers and one handoff)
# Kill other two container/obj primary servers
# Indirectly through proxy assert we can get container/obj
# Restart those other two container/obj primary servers
# Directly to handoff server assert we can get container/obj
# Assert container listing (via proxy and directly) has container/obj
# Bring the first container/obj primary server back up
# Assert that it doesn't have container/obj yet
# Run object replication for first container/obj primary server
# Run object replication for handoff node
# Assert the first container/obj primary server now has container/obj
# Assert the handoff server no longer has container/obj
container = 'container-%s' % uuid4()
client.put_container(self.url, self.token, container)
cpart, cnodes = self.container_ring.get_nodes(self.account, container)
cnode = cnodes[0]
obj = 'object-%s' % uuid4()
opart, onodes = self.object_ring.get_nodes(
self.account, container, obj)
onode = onodes[0]
kill_server(onode['port'], self.port2server, self.pids)
obj_dir = '%s/objects' % self._get_objects_dir(onode)
shutil.rmtree(obj_dir, True)
self.assertFalse(os.path.exists(obj_dir))
client.put_object(self.url, self.token, container, obj, 'VERIFY')
odata = client.get_object(self.url, self.token, container, obj)[-1]
if odata != 'VERIFY':
raise Exception('Object GET did not return VERIFY, instead it '
'returned: %s' % repr(odata))
# Kill all primaries to ensure GET handoff works
for node in onodes[1:]:
kill_server(node['port'], self.port2server, self.pids)
odata = client.get_object(self.url, self.token, container, obj)[-1]
if odata != 'VERIFY':
raise Exception('Object GET did not return VERIFY, instead it '
'returned: %s' % repr(odata))
for node in onodes[1:]:
start_server(node['port'], self.port2server, self.pids)
self.assertFalse(os.path.exists(obj_dir))
# We've indirectly verified the handoff node has the object, but
# let's directly verify it.
another_onode = self.object_ring.get_more_nodes(opart).next()
odata = direct_client.direct_get_object(
another_onode, opart, self.account, container, obj)[-1]
if odata != 'VERIFY':
raise Exception('Direct object GET did not return VERIFY, instead '
'it returned: %s' % repr(odata))
objs = [o['name'] for o in
client.get_container(self.url, self.token, container)[1]]
if obj not in objs:
raise Exception('Container listing did not know about object')
for cnode in cnodes:
objs = [o['name'] for o in
direct_client.direct_get_container(
cnode, cpart, self.account, container)[1]]
if obj not in objs:
raise Exception(
'Container server %s:%s did not know about object' %
(cnode['ip'], cnode['port']))
start_server(onode['port'], self.port2server, self.pids)
self.assertFalse(os.path.exists(obj_dir))
exc = None
try:
direct_client.direct_get_object(onode, opart, self.account,
container, obj)
except direct_client.ClientException as err:
exc = err
self.assertEquals(exc.http_status, 404)
self.assertFalse(os.path.exists(obj_dir))
try:
port_num = onode['replication_port']
except KeyError:
port_num = onode['port']
try:
another_port_num = another_onode['replication_port']
except KeyError:
another_port_num = another_onode['port']
call(['swift-object-replicator',
self.configs['object-replicator'] %
((port_num - 6000) / 10), 'once'])
call(['swift-object-replicator',
self.configs['object-replicator'] %
((another_port_num - 6000) / 10), 'once'])
odata = direct_client.direct_get_object(onode, opart, self.account,
container, obj)[-1]
if odata != 'VERIFY':
raise Exception('Direct object GET did not return VERIFY, instead '
'it returned: %s' % repr(odata))
exc = None
try:
direct_client.direct_get_object(another_onode, opart, self.account,
container, obj)
except direct_client.ClientException as err:
exc = err
self.assertEquals(exc.http_status, 404)
if __name__ == '__main__':
main()