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# Copyright (C) 2018-2020 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 time import sleep
from glusto.core import Glusto as g
from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
from glustolibs.gluster.volume_ops import (volume_create, volume_start,
get_volume_list)
from glustolibs.gluster.brick_libs import get_all_bricks
from glustolibs.gluster.volume_libs import (cleanup_volume)
from glustolibs.gluster.peer_ops import (peer_probe, peer_detach,
peer_probe_servers,
nodes_from_pool_list,
is_peer_connected)
from glustolibs.gluster.lib_utils import form_bricks_list
from glustolibs.gluster.brick_ops import remove_brick
from glustolibs.gluster.exceptions import ExecutionError
from glustolibs.gluster.mount_ops import mount_volume, umount_volume
from glustolibs.io.utils import validate_io_procs
from glustolibs.gluster.gluster_init import restart_glusterd
@runs_on([['distributed-replicated'], ['glusterfs']])
class TestRemoveBrickAfterRestartGlusterd(GlusterBaseClass):
def setUp(self):
# Performing peer detach
for server in self.servers[1:]:
ret, _, _ = peer_detach(self.mnode, server)
if ret != 0:
raise ExecutionError("Peer detach failed")
g.log.info("Peer detach SUCCESSFUL.")
self.get_super_method(self, 'setUp')()
def tearDown(self):
# Cleanup and umount volume
g.log.info("Starting to Unmount Volume %s", self.volname)
ret = umount_volume(self.mounts[0].client_system,
self.mounts[0].mountpoint, mtype=self.mount_type)
self.assertTrue(ret, ("Failed to Unmount Volume %s" % self.volname))
# Clean up all volumes and peer probe to form cluster
vol_list = get_volume_list(self.mnode)
if vol_list is not None:
for volume in vol_list:
ret = cleanup_volume(self.mnode, volume)
if not ret:
raise ExecutionError("Failed to cleanup volume")
g.log.info("Volume deleted successfully : %s", volume)
g.log.info("Successful in umounting the volume and Cleanup")
# Peer probe detached servers
pool = nodes_from_pool_list(self.mnode)
for node in pool:
peer_detach(self.mnode, node)
ret = peer_probe_servers(self.mnode, self.servers)
if not ret:
raise ExecutionError("Failed to probe detached "
"servers %s" % self.servers)
g.log.info("Peer probe success for detached "
"servers %s", self.servers)
self.get_super_method(self, 'tearDown')()
def test_remove_brick(self):
"""
In this test case:
1. Trusted storage Pool of 4 nodes
2. Create a distributed-replicated volumes with 4 bricks
3. Start the volume
4. Fuse mount the gluster volume on out of trusted nodes
5. Create some data file
6. Start remove-brick operation for one replica pair
7. Restart glusterd on all nodes
8. Try to commit the remove-brick operation while rebalance
is in progress, it should fail
"""
# pylint: disable=too-many-statements
my_servers = self.servers[0:4]
my_server_info = {}
for server in self.servers[0:4]:
my_server_info[server] = self.all_servers_info[server]
for index in range(1, 4):
ret, _, _ = peer_probe(self.servers[0], self.servers[index])
self.assertEqual(ret, 0, ("peer probe from %s to %s is failed",
self.servers[0], self.servers[index]))
g.log.info("peer probe is success from %s to "
"%s", self.servers[0], self.servers[index])
# Validating whether the peer are connected or not
# In jenkins This case is failing saying peers are not in connected
# state, that is reason adding a check whether peers are connected
# or not
count = 0
while count < 30:
ret = is_peer_connected(self.mnode, my_servers)
if ret:
g.log.info("Peers are in connected state")
break
sleep(3)
count = count + 1
self.assertTrue(ret, "Some peers are not in connected state")
self.volname = "testvol"
bricks_list = form_bricks_list(self.mnode, self.volname, 4,
my_servers,
my_server_info)
g.log.info("Creating a volume %s ", self.volname)
kwargs = {}
kwargs['replica_count'] = 2
ret = volume_create(self.mnode, self.volname,
bricks_list, force=False, **kwargs)
self.assertEqual(ret[0], 0, ("Unable"
"to create volume %s" % self.volname))
g.log.info("Volume created successfully %s", self.volname)
ret, _, _ = volume_start(self.mnode, self.volname, False)
self.assertEqual(ret, 0, ("Failed to start the "
"volume %s", self.volname))
g.log.info("Get all the bricks of the volume")
bricks_list = get_all_bricks(self.mnode, self.volname)
self.assertIsNotNone(bricks_list, "Failed to get the brick list")
g.log.info("Successfully got the list of bricks of volume")
# Mounting a volume
ret, _, _ = mount_volume(self.volname, mtype=self.mount_type,
mpoint=self.mounts[0].mountpoint,
mserver=self.mnode,
mclient=self.mounts[0].client_system)
self.assertEqual(ret, 0, ("Volume %s is not mounted") % self.volname)
g.log.info("Volume mounted successfully : %s", self.volname)
self.all_mounts_procs = []
# Creating files
command = ("cd %s/ ; "
"for i in `seq 1 10` ; "
"do mkdir l1_dir.$i ; "
"for j in `seq 1 5` ; "
"do mkdir l1_dir.$i/l2_dir.$j ; "
"for k in `seq 1 10` ; "
"do dd if=/dev/urandom of=l1_dir.$i/l2_dir.$j/test.$k "
"bs=128k count=$k ; "
"done ; "
"done ; "
"done ; "
% (self.mounts[0].mountpoint))
proc = g.run_async(self.mounts[0].client_system, command,
user=self.mounts[0].user)
self.all_mounts_procs.append(proc)
self.io_validation_complete = False
# Validate IO
self.assertTrue(
validate_io_procs(self.all_mounts_procs, self.mounts),
"IO failed on some of the clients")
self.io_validation_complete = True
remove_brick_list = bricks_list[2:4]
ret, _, _ = remove_brick(self.mnode, self.volname, remove_brick_list,
'start')
self.assertEqual(ret, 0, "Failed to start remove brick operation")
g.log.info("Remove bricks operation started successfully")
g.log.info("Restart glusterd on servers %s", self.servers)
ret = restart_glusterd(self.servers)
self.assertTrue(ret, ("Failed to restart glusterd on servers %s",
self.servers))
g.log.info("Successfully restarted glusterd on servers %s",
self.servers)
ret, _, _ = remove_brick(self.mnode, self.volname, remove_brick_list,
'commit')
self.assertNotEqual(ret, 0, "Remove brick commit ops should be fail")
g.log.info("Remove bricks commit operation failure is expected")
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