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# Copyright (C) 2015-2020 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.volume_libs import (
verify_all_process_of_volume_are_online,
wait_for_volume_process_to_be_online)
from glustolibs.gluster.volume_libs import expand_volume
from glustolibs.gluster.brick_libs import (select_bricks_to_bring_offline,
bring_bricks_offline,
bring_bricks_online,
are_bricks_offline)
from glustolibs.gluster.heal_libs import (monitor_heal_completion,
is_heal_complete,
is_volume_in_split_brain,
is_shd_daemonized)
from glustolibs.gluster.rebalance_ops import (rebalance_start,
wait_for_rebalance_to_complete)
from glustolibs.gluster.heal_ops import trigger_heal
from glustolibs.io.utils import (collect_mounts_arequal, validate_io_procs)
@runs_on([['replicated', 'distributed-replicated'],
['glusterfs', 'nfs']])
class TestSelfHeal(GlusterBaseClass):
"""
Description:
Arbiter Test cases related to
healing in default configuration of the volume
"""
@classmethod
def setUpClass(cls):
# Calling GlusterBaseClass setUpClass
cls.get_super_method(cls, 'setUpClass')()
# Overriding the volume type to specifically test the volume type
# Change from distributed-replicated to arbiter
if cls.volume_type == "distributed-replicated":
cls.volume['voltype'] = {
'type': 'distributed-replicated',
'dist_count': 2,
'replica_count': 3,
'arbiter_count': 1,
'transport': 'tcp'}
def setUp(self):
# Calling GlusterBaseClass setUp
self.get_super_method(self, 'setUp')()
# Setup Volume and Mount Volume
ret = self.setup_volume_and_mount_volume(self.mounts)
if not ret:
raise ExecutionError("Failed to Setup_Volume and Mount_Volume")
g.log.info("Successful in Setup Volume and Mount Volume")
def tearDown(self):
"""
Cleanup and umount volume
"""
# Cleanup and umount volume
ret = self.unmount_volume_and_cleanup_volume(self.mounts)
if not ret:
raise ExecutionError("Failed to umount the vol & cleanup Volume")
g.log.info("Successful in umounting the volume and Cleanup")
# Calling GlusterBaseClass teardown
self.get_super_method(self, 'tearDown')()
def test_self_heal_50k_files_heal_command_by_add_brick(self):
"""
Test self-heal of 50k files (heal command)
Description:
- Set the volume option
"metadata-self-heal": "off"
"entry-self-heal": "off"
"data-self-heal": "off"
"self-heal-daemon": "off"
- Bring down all bricks processes from selected set
- Create IO (50k files)
- Get arequal before getting bricks online
- Bring bricks online
- Set the volume option
"self-heal-daemon": "on"
- Check for daemons
- Start healing
- Check if heal is completed
- Check for split-brain
- Get arequal after getting bricks online and compare with
arequal before getting bricks online
- Add bricks
- Do rebalance
- Get arequal after adding bricks and compare with
arequal after getting bricks online
"""
# pylint: disable=too-many-locals,too-many-statements
# Setting options
options = {"metadata-self-heal": "off",
"entry-self-heal": "off",
"data-self-heal": "off",
"self-heal-daemon": "off"}
ret = set_volume_options(self.mnode, self.volname, options)
self.assertTrue(ret, 'Failed to set options')
g.log.info("Successfully set %s for volume %s", options, self.volname)
# Select bricks to bring offline
bricks_to_bring_offline_dict = (select_bricks_to_bring_offline(
self.mnode, self.volname))
bricks_to_bring_offline = list(filter(None, (
bricks_to_bring_offline_dict['hot_tier_bricks'] +
bricks_to_bring_offline_dict['cold_tier_bricks'] +
bricks_to_bring_offline_dict['volume_bricks'])))
# Bring brick offline
ret = bring_bricks_offline(self.volname, bricks_to_bring_offline)
self.assertTrue(ret, 'Failed to bring bricks %s offline' %
bricks_to_bring_offline)
ret = are_bricks_offline(self.mnode, self.volname,
bricks_to_bring_offline)
self.assertTrue(ret, 'Bricks %s are not offline'
% bricks_to_bring_offline)
g.log.info('Bringing bricks %s offline is successful',
bricks_to_bring_offline)
# Creating files on client side
all_mounts_procs = []
# Create 50k files
g.log.info('Creating files...')
command = ("cd %s ; "
"for i in `seq 1 50000` ; "
"do dd if=/dev/urandom of=test.$i "
"bs=100k count=1 ; "
"done ;"
% self.mounts[0].mountpoint)
proc = g.run_async(self.mounts[0].client_system, command,
user=self.mounts[0].user)
all_mounts_procs.append(proc)
# Validate IO
self.assertTrue(
validate_io_procs(all_mounts_procs, self.mounts[0]),
"IO failed on some of the clients"
)
# Get arequal before getting bricks online
ret, result_before_online = collect_mounts_arequal(self.mounts[0])
self.assertTrue(ret, 'Failed to get arequal')
g.log.info('Getting arequal before getting bricks online '
'is successful')
# Bring brick online
ret = bring_bricks_online(self.mnode, self.volname,
bricks_to_bring_offline)
self.assertTrue(ret, 'Failed to bring bricks %s online' %
bricks_to_bring_offline)
g.log.info('Bringing bricks %s online is successful',
bricks_to_bring_offline)
# Setting options
ret = set_volume_options(self.mnode, self.volname,
{"self-heal-daemon": "on"})
self.assertTrue(ret, 'Failed to set option self-heal-daemon to ON.')
g.log.info("Option 'self-heal-daemon' is set to 'on' successfully")
# Wait for volume processes to be online
ret = wait_for_volume_process_to_be_online(self.mnode, self.volname)
self.assertTrue(ret, ("Failed to wait for volume %s processes to "
"be online", self.volname))
g.log.info("Successful in waiting for volume %s processes to be "
"online", self.volname)
# Verify volume's all process are online
ret = verify_all_process_of_volume_are_online(self.mnode, self.volname)
self.assertTrue(ret, ("Volume %s : All process are not online"
% self.volname))
g.log.info("Volume %s : All process are online", self.volname)
# Wait for self-heal-daemons to be online
ret = is_shd_daemonized(self.all_servers)
self.assertTrue(ret, "Either No self heal daemon process found")
g.log.info("All self-heal-daemons are online")
# Start healing
ret = trigger_heal(self.mnode, self.volname)
self.assertTrue(ret, 'Heal is not started')
g.log.info('Healing is started')
# Monitor heal completion
ret = monitor_heal_completion(self.mnode, self.volname,
timeout_period=3600)
self.assertTrue(ret, 'Heal has not yet completed')
# Check if heal is completed
ret = is_heal_complete(self.mnode, self.volname)
self.assertTrue(ret, 'Heal is not complete')
g.log.info('Heal is completed successfully')
# Check for split-brain
ret = is_volume_in_split_brain(self.mnode, self.volname)
self.assertFalse(ret, 'Volume is in split-brain state')
g.log.info('Volume is not in split-brain state')
# Get arequal after getting bricks online
ret, result_after_online = collect_mounts_arequal(self.mounts[0])
self.assertTrue(ret, 'Failed to get arequal')
g.log.info('Getting arequal after getting bricks online '
'is successful')
# Checking arequals before bringing bricks online
# and after bringing bricks online
self.assertItemsEqual(result_before_online, result_after_online,
'Checksums before and '
'after bringing bricks online are not equal')
g.log.info('Checksums before and after bringing bricks online '
'are equal')
# Add bricks
ret = expand_volume(self.mnode, self.volname, self.servers,
self.all_servers_info)
self.assertTrue(ret, ("Failed to expand the volume when IO in "
"progress on volume %s", self.volname))
g.log.info("Expanding volume is successful on volume %s", self.volname)
# Do rebalance and wait for it to complete
ret, _, _ = rebalance_start(self.mnode, self.volname)
self.assertEqual(ret, 0, 'Failed to start rebalance')
g.log.info('Rebalance is started')
ret = wait_for_rebalance_to_complete(self.mnode, self.volname,
timeout=3600)
self.assertTrue(ret, 'Rebalance is not completed')
g.log.info('Rebalance is completed successfully')
# Get arequal after adding bricks
ret, result_after_adding_bricks = collect_mounts_arequal(
self.mounts[0])
self.assertTrue(ret, 'Failed to get arequal')
g.log.info('Getting arequal after getting bricks '
'is successful')
# Checking arequals after bringing bricks online
# and after adding bricks
self.assertItemsEqual(result_after_online, result_after_adding_bricks,
'Checksums after bringing bricks online and '
'after adding bricks are not equal')
g.log.info('Checksums after bringing bricks online and '
'after adding bricks are equal')
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