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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 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
from glustolibs.gluster.rebalance_ops import (
rebalance_start, wait_for_rebalance_to_complete)
from glustolibs.gluster.volume_libs import (
log_volume_info_and_status, expand_volume,
wait_for_volume_process_to_be_online)
@runs_on([['distributed-replicated', 'replicated', 'distributed',
'dispersed', 'distributed-dispersed'],
['nfs']])
class TestGaneshaAddBrick(NfsGaneshaClusterSetupClass):
"""
Test cases to validate add-brick and rebalance functionality on volumes
exported through nfs-ganesha
"""
@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 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_nfs_ganesha_add_brick(self):
"""
Verify add brick functionality when IO is running
Steps:
1. Start IO on mount points
2. Add bricks to expand the volume
3. Start rebalance and wait for its completion
4. Validate IOs
"""
# 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 = ("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
# 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")
# Start add-brick
g.log.info("Start adding bricks to volume when IO in progress")
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 when IO in progress is successful on "
"volume %s", self.volname)
# Log volume info and status after expanding the volume
g.log.info("Logging volume info and Status after expanding volume")
ret = log_volume_info_and_status(self.mnode, self.volname)
self.assertTrue(ret, ("Logging volume info and status failed on "
"volume %s", self.volname))
g.log.info("Successful in logging volume info and status of volume %s",
self.volname)
# Wait for volume processes to be online
g.log.info("Wait for volume processes to be online")
ret = wait_for_volume_process_to_be_online(self.mnode, self.volname)
self.assertTrue(ret, ("All process for volume %s are not"
"online", self.volname))
g.log.info("All volume %s processes are now online",
self.volname)
# Start rebalance
g.log.info("Starting Rebalance on the volume")
ret, _, _ = rebalance_start(self.mnode, self.volname)
self.assertEqual(ret, 0, ("Failed to start rebalance on the volume "
"%s", self.volname))
g.log.info("Successfully started rebalance on the volume %s",
self.volname)
# Wait for rebalance to complete
g.log.info("Waiting for rebalance to complete")
ret = wait_for_rebalance_to_complete(self.mnode, self.volname)
self.assertTrue(ret, "Rebalance did not start "
"despite waiting for 5 mins")
g.log.info("Rebalance is successfully complete on the volume %s",
self.volname)
# 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's")
# 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 volume
"""
# Unmount volume
ret = self.unmount_volume(self.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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