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# Copyright (C) 2017-2020 Red Hat, Inc. <http://www.redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import re
import random
from glusto.core import Glusto as g
from glustolibs.gluster.exceptions import ExecutionError
from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
from glustolibs.gluster.volume_libs import (cleanup_volume, get_volume_list,
setup_volume)
from glustolibs.gluster.volume_ops import (volume_stop, volume_start)
from glustolibs.gluster.brick_libs import get_all_bricks
from glustolibs.gluster.gluster_init import stop_glusterd, start_glusterd
from glustolibs.gluster.peer_ops import (
peer_probe_servers, wait_for_peers_to_connect)
@runs_on([['distributed', 'replicated', 'distributed-replicated', 'dispersed',
'distributed-dispersed'], ['glusterfs']])
class TestVolumeDelete(GlusterBaseClass):
@classmethod
def setUpClass(cls):
# Calling GlusterBaseClass setUpClass
cls.get_super_method(cls, 'setUpClass')()
# check whether peers are in connected state
ret = cls.validate_peers_are_connected()
if not ret:
raise ExecutionError("Peers are not in connected state")
def tearDown(self):
# start the volume, it should succeed
ret, _, _ = volume_start(self.mnode, self.volname)
self.assertEqual(ret, 0, "Volume stop failed")
# start glusterd on all servers
ret = start_glusterd(self.servers)
if not ret:
raise ExecutionError("Failed to start glusterd on all servers")
for server in self.servers:
ret = wait_for_peers_to_connect(server, self.servers)
if not ret:
ret = peer_probe_servers(server, self.servers)
if not ret:
raise ExecutionError("Failed to peer probe all "
"the servers")
# clean up all volumes
vol_list = get_volume_list(self.mnode)
if vol_list is None:
raise ExecutionError("Failed to get the volume list")
for volume in vol_list:
ret = cleanup_volume(self.mnode, volume)
if not ret:
raise ExecutionError("Unable to delete volume % s" % volume)
g.log.info("Volume deleted successfully : %s", volume)
self.get_super_method(self, 'tearDown')()
@classmethod
def tearDownClass(cls):
# Calling GlusterBaseClass tearDown
cls.get_super_method(cls, 'tearDownClass')()
def test_vol_delete_when_one_of_nodes_is_down(self):
# create a volume and start it
ret = setup_volume(self.mnode, self.all_servers_info, self.volume)
self.assertTrue(ret, "Failed to create and start the volume")
g.log.info("Successfully created and started the volume")
# get the bricks list
bricks_list = get_all_bricks(self.mnode, self.volname)
self.assertIsNotNone(bricks_list, "Failed to get the bricks list")
# get a random node other than self.mnode
if len(bricks_list) >= len(self.servers):
random_index = random.randint(1, len(self.servers) - 1)
else:
random_index = random.randint(1, len(bricks_list) - 1)
# stop glusterd on the random node
node_to_stop_glusterd = self.servers[random_index]
ret = stop_glusterd(node_to_stop_glusterd)
self.assertTrue(ret, "Failed to stop glusterd")
# stop the volume, it should succeed
ret, _, _ = volume_stop(self.mnode, self.volname)
self.assertEqual(ret, 0, "Volume stop failed")
# try to delete the volume, it should fail
ret, _, err = g.run(self.mnode, "gluster volume delete %s "
"--mode=script" % self.volname)
self.assertNotEqual(ret, 0, "Volume delete succeeded when one of the"
" brick node is down")
if re.search(r'Some of the peers are down', err):
g.log.info("Volume delete failed with expected error message")
else:
g.log.info("Volume delete failed with unexpected error message")
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