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# Copyright (C) 2021 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 random import choice
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.brick_libs import (bring_bricks_offline,
bring_bricks_online,
are_bricks_offline,
are_bricks_online, get_all_bricks)
from glustolibs.gluster.glusterfile import (set_file_permissions,
occurences_of_pattern_in_file)
from glustolibs.gluster.heal_libs import (monitor_heal_completion,
is_heal_complete)
from glustolibs.gluster.rebalance_ops import (
rebalance_start, wait_for_rebalance_to_complete)
from glustolibs.gluster.lib_utils import (add_user, del_user)
from glustolibs.gluster.volume_libs import (get_subvols, expand_volume)
@runs_on([['distributed-replicated'], ['glusterfs']])
class TestHealWithExpandVolume(GlusterBaseClass):
def setUp(self):
self.get_super_method(self, 'setUp')()
self.first_client = self.mounts[0].client_system
self.mountpoint = self.mounts[0].mountpoint
# Create non-root users
self.users = ('qa_user', 'qa_admin')
for user in self.users:
if not add_user(self.first_client, user):
raise ExecutionError("Failed to create non-root user {}"
.format(user))
g.log.info("Successfully created non-root users")
# Setup Volume
if not self.setup_volume_and_mount_volume([self.mounts[0]]):
raise ExecutionError("Failed to setup and mount volume")
def tearDown(self):
# Delete non-root users
for user in self.users:
del_user(self.first_client, user)
ret, _, _ = g.run(self.first_client,
"rm -rf /home/{}".format(user))
if ret:
raise ExecutionError("Failed to remove home dir of "
"non-root user")
g.log.info("Successfully deleted all users")
if not self.unmount_volume_and_cleanup_volume([self.mounts[0]]):
raise ExecutionError("Failed to cleanup Volume")
# Calling GlusterBaseClass tearDown
self.get_super_method(self, 'tearDown')()
def _bring_bricks_offline(self):
"""Brings bricks offline and confirms if they are offline"""
# Select bricks to bring offline from a replica set
subvols_dict = get_subvols(self.mnode, self.volname)
subvols = subvols_dict['volume_subvols']
self.bricks_to_bring_offline = []
self.bricks_to_bring_offline.append(choice(subvols[0]))
# Bring bricks offline
ret = bring_bricks_offline(self.volname, self.bricks_to_bring_offline)
self.assertTrue(ret, 'Failed to bring bricks %s offline' %
self.bricks_to_bring_offline)
ret = are_bricks_offline(self.mnode, self.volname,
self.bricks_to_bring_offline)
self.assertTrue(ret, 'Bricks %s are not offline'
% self.bricks_to_bring_offline)
g.log.info('Bringing bricks %s offline is successful',
self.bricks_to_bring_offline)
def _restart_volume_and_bring_all_offline_bricks_online(self):
"""Restart volume and bring all offline bricks online"""
ret = bring_bricks_online(self.mnode, self.volname,
self.bricks_to_bring_offline,
bring_bricks_online_methods=[
'volume_start_force'])
self.assertTrue(ret, 'Failed to bring bricks %s online' %
self.bricks_to_bring_offline)
# Check if bricks are back online or not
ret = are_bricks_online(self.mnode, self.volname,
self.bricks_to_bring_offline)
self.assertTrue(ret, 'Bricks not online %s even after restart' %
self.bricks_to_bring_offline)
g.log.info('Bringing bricks %s online is successful',
self.bricks_to_bring_offline)
def _wait_for_heal_to_completed(self):
"""Check if heal is completed"""
ret = monitor_heal_completion(self.mnode, self.volname,
timeout_period=3600)
self.assertTrue(ret, 'Heal has not yet completed')
def _check_if_there_are_files_to_be_healed(self):
"""Check if there are files and dirs to be healed"""
ret = is_heal_complete(self.mnode, self.volname)
self.assertFalse(ret, 'Heal is completed')
g.log.info('Heal is pending')
def _expand_volume_and_wait_for_rebalance_to_complete(self):
"""Expand volume and wait for rebalance to complete"""
# Add brick to volume
ret = expand_volume(self.mnode, self.volname, self.servers,
self.all_servers_info)
self.assertTrue(ret, "Failed to add brick on volume %s"
% self.volname)
# Trigger rebalance and wait for it to complete
ret, _, _ = rebalance_start(self.mnode, self.volname,
force=True)
self.assertEqual(ret, 0, "Failed to start rebalance on the volume %s"
% self.volname)
# Wait for rebalance to complete
ret = wait_for_rebalance_to_complete(self.mnode, self.volname,
timeout=6000)
self.assertTrue(ret, "Rebalance is not yet complete on the volume "
"%s" % self.volname)
g.log.info("Rebalance successfully completed")
def test_self_heal_and_add_brick_with_data_from_diff_users(self):
"""
Test case:
1. Created a 2X3 volume.
2. Mount the volume using FUSE and give 777 permissions to the mount.
3. Added a new user.
4. Login as new user and created 100 files from the new user:
for i in {1..100};do dd if=/dev/urandom of=$i bs=1024 count=1;done
5. Kill a brick which is part of the volume.
6. On the mount, login as root user and create 1000 files:
for i in {1..1000};do dd if=/dev/urandom of=f$i bs=10M count=1;done
7. On the mount, login as new user, and copy existing data to
the mount.
8. Start volume using force.
9. While heal is in progress, add-brick and start rebalance.
10. Wait for rebalance and heal to complete,
11. Check for MSGID: 108008 errors in rebalance logs.
"""
# Change permissions of mount point to 777
ret = set_file_permissions(self.first_client, self.mountpoint,
'-R 777')
self.assertTrue(ret, "Unable to change mount point permissions")
g.log.info("Mount point permissions set to 777")
# Create 100 files from non-root user
cmd = ("su -l %s -c 'cd %s; for i in {1..100};do dd if=/dev/urandom "
"of=nonrootfile$i bs=1024 count=1; done'" % (self.users[0],
self.mountpoint))
ret, _, _ = g.run(self.first_client, cmd)
self.assertFalse(ret, "Failed to create files from non-root user")
# Kill one brick which is part of the volume
self._bring_bricks_offline()
# Create 1000 files from root user
cmd = ("cd %s; for i in {1..1000};do dd if=/dev/urandom of=rootfile$i"
" bs=10M count=1;done" % self.mountpoint)
ret, _, _ = g.run(self.first_client, cmd)
self.assertFalse(ret, "Failed to creare files from root user")
# On the mount, login as new user, and copy existing data to
# the mount
cmd = ("su -l %s -c 'wget https://cdn.kernel.org/pub/linux/kernel/"
"v5.x/linux-5.4.54.tar.xz; tar -xvf linux-5.4.54.tar.xz;"
"cd %s; cp -r ~/ .;'" % (self.users[1], self.mountpoint))
ret, _, _ = g.run(self.first_client, cmd)
self.assertFalse(ret, "Failed to copy files from non-root user")
# Check if there are files to be healed
self._check_if_there_are_files_to_be_healed()
# Start the vol using force
self._restart_volume_and_bring_all_offline_bricks_online()
# Add bricks to volume and wait for heal to complete
self._expand_volume_and_wait_for_rebalance_to_complete()
# Wait for heal to complete
self._wait_for_heal_to_completed()
# Check for MSGID: 108008 errors in rebalance logs
particiapting_nodes = []
for brick in get_all_bricks(self.mnode, self.volname):
node, _ = brick.split(':')
particiapting_nodes.append(node)
for server in particiapting_nodes:
ret = occurences_of_pattern_in_file(
server, "MSGID: 108008",
"/var/log/glusterfs/{}-rebalance.log".format(self.volname))
self.assertEqual(ret, 0,
"[Input/output error] present in rebalance log"
" file")
g.log.info("Expanding volume successful and no MSGID: 108008 "
"errors see in rebalance logs")
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