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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.
""" Description:
Test cases in this module tests creation and mount of new volume while
IO is in progress on another volume
"""
from copy import deepcopy
from glusto.core import Glusto as g
from glustolibs.gluster.nfs_ganesha_libs import (
wait_for_nfs_ganesha_volume_to_get_exported)
from glustolibs.gluster.gluster_base_class import runs_on, GlusterBaseClass
from glustolibs.gluster.exceptions import ExecutionError
from glustolibs.misc.misc_libs import upload_scripts
from glustolibs.io.utils import validate_io_procs, get_mounts_stat
from glustolibs.gluster.volume_libs import (
cleanup_volume, wait_for_volume_process_to_be_online)
from glustolibs.gluster.lib_utils import get_servers_bricks_dict
from glustolibs.gluster.volume_ops import volume_create, volume_start
from glustolibs.gluster.nfs_ganesha_ops import export_nfs_ganesha_volume
@runs_on([['replicated', 'distributed', 'distributed-replicated',
'dispersed', 'distributed-dispersed'],
['nfs']])
class TestNewVolumeWhileIoInProgress(GlusterBaseClass):
"""
Test cases to verify creation, export and mount of new volume while IO is
going on another volume exported through nfs-ganesha.
"""
@classmethod
def setUpClass(cls):
"""
Setup nfs-ganesha if not exists.
Upload IO scripts to clients
"""
cls.get_super_method(cls, 'setUpClass')()
# Upload IO scripts for running IO on mounts
g.log.info("Upload io scripts to clients %s for running IO on "
"mounts", cls.clients)
cls.script_upload_path = ("/usr/share/glustolibs/io/scripts/"
"file_dir_ops.py")
ret = upload_scripts(cls.clients, cls.script_upload_path)
if not ret:
raise ExecutionError("Failed to upload IO scripts to clients %s" %
cls.clients)
g.log.info("Successfully uploaded IO scripts to clients %s",
cls.clients)
def setUp(self):
"""
Setup Volume and Mount Volume
"""
g.log.info("Starting to setup and mount volume %s", self.volname)
ret = self.setup_volume_and_mount_volume(mounts=self.mounts)
if not ret:
raise ExecutionError("Failed to setup and mount volume %s"
% self.volname)
g.log.info("Successful in setup and mount volume %s", self.volname)
def test_new_volume_while_io_in_progress(self):
"""
Create, export and mount new volume while IO running on mount of
another volume
Steps:
1. Start IO on mount points
2. Create another volume 'volume_new'
3. Export volume_new through nfs-ganesha
4. Mount the volume on clients
"""
# pylint: disable=too-many-statements, too-many-locals
# Start IO on all mount points
all_mounts_procs = []
count = 1
for mount_obj in self.mounts:
g.log.info("Starting IO on %s:%s", mount_obj.client_system,
mount_obj.mountpoint)
cmd = ("/usr/bin/env python %s create_deep_dirs_with_files "
"--dirname-start-num %d "
"--dir-depth 2 "
"--dir-length 10 "
"--max-num-of-dirs 5 "
"--num-of-files 5 %s" % (
self.script_upload_path, count,
mount_obj.mountpoint))
proc = g.run_async(mount_obj.client_system, cmd,
user=mount_obj.user)
all_mounts_procs.append(proc)
count = count + 10
self.volname_new = '%s_new' % self.volname
kwargs = {}
dict_index = 0
# Creating mounts list for mounting new volume
self.mounts_new = []
for mount_obj in self.mounts:
self.mounts_new.append(deepcopy(mount_obj))
for mount_obj in self.mounts_new:
mount_obj.volname = self.volname_new
mount_obj.mountpoint = '%s_new' % mount_obj.mountpoint
# Fetch details for creating a replicate volume.
replica_count = (
self.default_volume_type_config['replicated']['replica_count'])
servers_bricks_dict = get_servers_bricks_dict(self.all_servers,
self.all_servers_info)
bricks_list = []
kwargs['replica_count'] = replica_count
kwargs['transport_type'] = (
self.default_volume_type_config['replicated']['transport'])
for num in range(0, replica_count):
# Current_server is the server on which brick path will be created
current_server = list(servers_bricks_dict.keys())[dict_index]
current_server_unused_bricks_list = (
list(servers_bricks_dict.values())[dict_index])
if current_server_unused_bricks_list:
brick_path = ("%s:%s/%s_brick%s" %
(current_server,
current_server_unused_bricks_list[0],
self.volname_new, num))
bricks_list.append(brick_path)
# Remove the added brick from the list
list(servers_bricks_dict.values())[dict_index].pop(0)
if dict_index < len(servers_bricks_dict) - 1:
dict_index = dict_index + 1
else:
dict_index = 0
# Create volume 'volume_new'
ret, _, _ = volume_create(mnode=self.mnode, volname=self.volname_new,
bricks_list=bricks_list, force=False,
**kwargs)
self.assertEqual(ret, 0, "Unable to create volume %s"
% self.volname_new)
g.log.info("Successfully created volume %s", self.volname_new)
ret, _, _ = volume_start(self.mnode, self.volname_new)
self.assertEqual(ret, 0, "Unable to start volume %s"
% self.volname_new)
# Wait for volume processes to be online
g.log.info("Wait for volume %s processes to be online",
self.volname_new)
ret = wait_for_volume_process_to_be_online(self.mnode,
self.volname_new)
self.assertTrue(ret, "Wait timeout: Processes of volume %s are "
"not online." % self.volname_new)
g.log.info("Volume processes of volume %s are now online",
self.volname_new)
# Export volume as nfs-ganesha export
ret, _, _ = export_nfs_ganesha_volume(self.mnode, self.volname_new)
self.assertEqual(ret, 0, "Failed to set ganesha.enable 'on' on "
"volume %s" % self.volname_new)
g.log.info("Successful in setting ganesha.enable to 'on' on "
"volume %s", self.volname_new)
# Verify volume export
ret = wait_for_nfs_ganesha_volume_to_get_exported(self.mnode,
self.volname_new)
self.assertTrue(ret, "Failed to export volume %s as nfs-ganesha "
"export" % self.volname_new)
g.log.info("Successfully exported volume %s", self.volname_new)
# Mount the new volume
for mount_obj in self.mounts_new:
ret = mount_obj.mount()
self.assertTrue(ret, ("Failed to mount %s on client"
" %s" % (mount_obj.volname,
mount_obj.client_system)))
g.log.info("Successfully mounted %s on client %s",
mount_obj.volname,
mount_obj.client_system)
# Verify mounts
for mount_obj in self.mounts_new:
ret = mount_obj.is_mounted()
self.assertTrue(ret, ("Volume %s is not mounted on client"
" %s" % (mount_obj.volname,
mount_obj.client_system)))
g.log.info("Verified: Volume %s is mounted on client %s",
mount_obj.volname,
mount_obj.client_system)
g.log.info("Export and mount of new volume %s is success.",
self.volname_new)
# Validate IO
g.log.info("Validating IO's")
ret = validate_io_procs(all_mounts_procs, self.mounts)
self.assertTrue(ret, "IO failed on some of the clients")
g.log.info("Successfully validated all IO")
# Get stat of all the files/dirs created.
g.log.info("Get stat of all the files/dirs created.")
ret = get_mounts_stat(self.mounts)
self.assertTrue(ret, "Stat failed on some of the clients")
g.log.info("Successfully got stat of all files/dirs created")
def tearDown(self):
"""
Unmount and cleanup the volumes
"""
# Unmount volumes
all_mounts = self.mounts + self.mounts_new
for mount_obj in all_mounts:
ret = mount_obj.unmount()
if ret:
g.log.info("Successfully unmounted volume %s from %s",
mount_obj.volname, mount_obj.client_system)
else:
g.log.error("Failed to unmount volume %s from %s",
mount_obj.volname, mount_obj.client_system)
# Cleanup volumes
for volume in self.volname, self.volname_new:
ret = cleanup_volume(self.mnode, volume)
if not ret:
raise ExecutionError("Failed to cleanup volume %s", volume)
g.log.info("Volume %s deleted successfully", volume)
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