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# Copyright (C) 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.
from glusto.core import Glusto as g
from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
from glustolibs.gluster.exceptions import ExecutionError
from glustolibs.gluster.volume_ops import set_volume_options
from glustolibs.gluster.glusterdir import get_dir_contents
@runs_on([['distributed-dispersed'], ['glusterfs']])
class TestDisableReaddirpDataLoss(GlusterBaseClass):
def setUp(self):
self.get_super_method(self, 'setUp')()
# Setup Volume
if not self.setup_volume():
raise ExecutionError("Failed to Setup_Volume %s" % self.volname)
def tearDown(self):
# Unmount volume if mounted
if self.currently_mounted_clients:
if not self.unmount_volume(self.currently_mounted_clients):
raise ExecutionError("Failed to unmount Volume")
# Cleanup volume
if not self.cleanup_volume():
raise ExecutionError("Failed to Cleanup Volume")
# Calling GlusterBaseClass tearDown
self.get_super_method(self, 'tearDown')()
def _mount_on_a_client(self, mountobj):
"""Mount volume on one client and update list"""
ret = self.mount_volume([mountobj])
self.assertTrue(ret, "Failed to mount volume on client")
self.currently_mounted_clients.append(mountobj)
def _perfrom_lookups_on_mount_point(self, node, mountpoint):
"""Perform lookups on a given mount point"""
ret = get_dir_contents(node, mountpoint)
self.assertEqual(len(ret), 8,
"8 dirs not present on mount point %s on %s"
% (node, mountpoint))
g.log.info("Lookup successful on node %s and mount point %s",
node, mountpoint)
def test_disable_readdirp_data_loss(self):
"""
Test case:
1. Create a 2 x (4+2) disperse volume and start it.
2. Disable performance.force-readdirp and dht.force-readdirp.
3. Mount the volume on one client and create 8 directories.
4. Do a lookup on the mount using the same mount point,
number of directories should be 8.
5. Mount the volume again on a different client and check
if number of directories is the same or not.
"""
# List to determine if volume is mounted or not
self.currently_mounted_clients = []
# Disable performance.force-readdirp and dht.force-readdirp
for option, val in (("performance.force-readdirp", "disable"),
("dht.force-readdirp", "off")):
ret = set_volume_options(self.mnode, self.volname, {option: val})
self.assertTrue(ret, "Failed to set volume option %s to %s"
% (option, val))
g.log.info("Successfully disabled performance.force-readdirp and "
"dht.force-readdirp")
# Mount the volume on one client and create 8 directories
self._mount_on_a_client(self.mounts[0])
ret, _, _ = g.run(self.mounts[0].client_system,
"mkdir %s/dir{1..8}" % self.mounts[0].mountpoint)
self.assertFalse(ret, "Failed to create 8 directories on mount point")
g.log.info("Successfully mounted and create 8 dirs on mount point")
# Do a lookup on the mount using the same mount point,
# number of directories should be 8
self._perfrom_lookups_on_mount_point(self.mounts[0].client_system,
self.mounts[0].mountpoint)
# Mount the volume again on a different client and check
# if number of directories is the same or not
self._mount_on_a_client(self.mounts[1])
self._perfrom_lookups_on_mount_point(self.mounts[1].client_system,
self.mounts[1].mountpoint)
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