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# Copyright (C) 2018-2019 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 copy import deepcopy
from glusto.core import Glusto as g
from glustolibs.gluster.nfs_ganesha_libs import NfsGaneshaClusterSetupClass
from glustolibs.gluster.gluster_base_class import runs_on
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
@runs_on([['replicated', 'distributed', 'distributed-replicated'],
['nfs']])
class TestMountWhileIoInProgress(NfsGaneshaClusterSetupClass):
"""
Test cases to validate new mount while IO is going on
"""
@classmethod
def setUpClass(cls):
"""
Setup nfs-ganesha if not exists.
Upload IO scripts to clients
"""
NfsGaneshaClusterSetupClass.setUpClass.im_func(cls)
# Setup nfs-ganesha if not exists.
ret = cls.setup_nfs_ganesha()
if not ret:
raise ExecutionError("Failed to setup nfs-ganesha cluster")
g.log.info("nfs-ganesha cluster is healthy")
# Upload IO scripts for running IO on mounts
g.log.info("Upload io scripts to clients %s for running IO on "
"mounts", cls.clients)
script_local_path = ("/usr/share/glustolibs/io/scripts/"
"file_dir_ops.py")
cls.script_upload_path = ("/usr/share/glustolibs/io/scripts/"
"file_dir_ops.py")
ret = upload_scripts(cls.clients, script_local_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
"""
g.log.info("Starting to setup and mount volume %s", self.volname)
ret = self.setup_volume()
if not ret:
raise ExecutionError("Failed to setup volume %s" % self.volname)
g.log.info("Successfully setup volume %s", self.volname)
def test_new_mount_while_io_in_progress(self):
"""
Verify new mount will not cause any issues while IO is running
Steps:
1. Mount volume on one client
2. Start IO
3. Mount volume on new mountpoint
4. Start IO on new mountpoint
5. Validate IOs
"""
# Take 2 mounts if available
no_of_mount_objects = len(self.mounts)
if no_of_mount_objects == 1:
self.mount_obj1 = self.mounts[0]
self.mount_obj2 = deepcopy(self.mounts[0])
self.mount_obj2.mountpoint = '%s_new' % self.mount_obj2.mountpoint
else:
self.mount_obj1 = self.mounts[0]
self.mount_obj2 = self.mounts[1]
self.new_mounts = [self.mount_obj1, self.mount_obj2]
all_mounts_procs = []
dirname_start_num = 1
for mount_object in self.new_mounts:
# Mount volume
ret = self.mount_obj1.mount()
self.assertTrue(ret, "Unable to mount volume %s on %s"
% (mount_object.volname,
mount_object.client_system))
# Start IO
g.log.info("Starting IO on %s:%s", mount_object.client_system,
mount_object.mountpoint)
cmd = ("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,
dirname_start_num,
mount_object.mountpoint))
proc = g.run_async(mount_object.client_system, cmd,
user=mount_object.user)
all_mounts_procs.append(proc)
dirname_start_num += 10
# Validate IOs
g.log.info("Validating IO's")
ret = validate_io_procs(all_mounts_procs, self.new_mounts)
self.assertTrue(ret, "IO failed on some of the clients")
g.log.info("Successfully validated all IOs")
# Get stat of all the files/dirs created.
g.log.info("Get stat of all the files/dirs created.")
ret = get_mounts_stat(self.new_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 volume
"""
# Unmount volume
ret = self.unmount_volume(self.new_mounts)
if ret:
g.log.info("Successfully unmounted the volume")
else:
g.log.error("Failed to unmount volume")
# Cleanup volume
ret = self.cleanup_volume()
if not ret:
raise ExecutionError("Failed to cleanup volume")
g.log.info("Cleanup volume %s completed successfully", self.volname)
@classmethod
def tearDownClass(cls):
(NfsGaneshaClusterSetupClass.
tearDownClass.
im_func(cls, delete_nfs_ganesha_cluster=False))
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