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# Copyright (C) 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 random import choice
from unittest import skip, SkipTest
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 get_all_bricks
from glustolibs.gluster.glusterdir import mkdir
from glustolibs.gluster.volume_libs import expand_volume, shrink_volume
from glustolibs.gluster.brickmux_ops import enable_brick_mux, disable_brick_mux
from glustolibs.misc.misc_libs import upload_scripts, kill_process
from glustolibs.io.utils import (run_linux_untar, validate_io_procs,
wait_for_io_to_complete)
@runs_on([['distributed-replicated', 'distributed-dispersed'], ['glusterfs']])
class TestAddBrickRemoveBrickWithlookupsAndKernaluntar(GlusterBaseClass):
@classmethod
def setUpClass(cls):
# Calling GlusterBaseClass setUpClass
cls.get_super_method(cls, 'setUpClass')()
# Check for availability of atleast 4 clients
if len(cls.clients) < 4:
raise SkipTest("This test requires atleast 4 clients")
# Upload io scripts for running IO on mounts
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)
def setUp(self):
self.get_super_method(self, 'setUp')()
# Enable brickmux on cluster
if not enable_brick_mux(self.mnode):
raise ExecutionError("Failed to enable brickmux on cluster")
# Changing dist_count to 3
self.volume['voltype']['dist_count'] = 3
# Creating Volume and mounting the volume
ret = self.setup_volume_and_mount_volume([self.mounts[0]])
if not ret:
raise ExecutionError("Volume creation or mount failed: %s"
% self.volname)
self.list_of_io_processes = []
self.is_io_running = False
def tearDown(self):
# Disable brickmux on cluster
if not disable_brick_mux(self.mnode):
raise ExecutionError("Failed to disable brickmux on cluster")
# If I/O processes are running wait from them to complete
if self.is_io_running:
if not wait_for_io_to_complete(self.list_of_io_processes,
self.mounts):
raise ExecutionError("Failed to wait for I/O to complete")
# Unmounting and cleaning volume
ret = self.unmount_volume_and_cleanup_volume([self.mounts[0]])
if not ret:
raise ExecutionError("Unable to delete volume %s" % self.volname)
self.get_super_method(self, 'tearDown')()
@skip('Skipping due to Bug 1571317')
def test_add_brick_remove_brick_with_lookups_and_kernal_untar(self):
"""
Test case:
1. Enable brickmux on cluster, create a volume, start it and mount it.
2. Start the below I/O from 4 clients:
From client-1 : run script to create folders and files continuously
From client-2 : start linux kernel untar
From client-3 : while true;do find;done
From client-4 : while true;do ls -lRt;done
3. Kill brick process on one of the nodes.
4. Add brick to the volume.
5. Remove bricks from the volume.
6. Validate if I/O was successful or not.
"""
# Fill few bricks till it is full
bricks = get_all_bricks(self.mnode, self.volname)
# Create a dir to start untar
self.linux_untar_dir = "{}/{}".format(self.mounts[0].mountpoint,
"linuxuntar")
ret = mkdir(self.clients[0], self.linux_untar_dir)
self.assertTrue(ret, "Failed to create dir linuxuntar for untar")
# Start linux untar on dir linuxuntar
ret = run_linux_untar(self.clients[0], self.mounts[0].mountpoint,
dirs=tuple(['linuxuntar']))
self.list_of_io_processes += ret
self.is_io_running = True
# Run script to create folders and files continuously
cmd = ("/usr/bin/env python {} create_deep_dirs_with_files "
"--dirname-start-num 758 --dir-depth 2 "
"--dir-length 100 --max-num-of-dirs 10 --num-of-files 105 {}"
.format(self.script_upload_path, self.mounts[1].mountpoint))
ret = g.run_async(self.mounts[1].client_system, cmd)
self.list_of_io_processes += [ret]
# Run lookup operations from 2 clients
cmd = ("cd {}; for i in `seq 1 1000000`;do find .; done"
.format(self.mounts[2].mountpoint))
ret = g.run_async(self.mounts[2].client_system, cmd)
self.list_of_io_processes += [ret]
cmd = ("cd {}; for i in `seq 1 1000000`;do ls -lRt; done"
.format(self.mounts[3].mountpoint))
ret = g.run_async(self.mounts[3].client_system, cmd)
self.list_of_io_processes += [ret]
# Kill brick process of one of the nodes.
brick = choice(bricks)
node, _ = brick.split(":")
ret = kill_process(node, process_names="glusterfsd")
self.assertTrue(ret, "Failed to kill brick process of brick %s"
% brick)
# 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)
g.log.info("Add brick to volume successful")
# Remove bricks from the volume
ret = shrink_volume(self.mnode, self.volname, rebalance_timeout=2400)
self.assertTrue(ret, "Failed to remove-brick from volume")
g.log.info("Remove-brick rebalance successful")
# Validate if I/O was successful or not.
ret = validate_io_procs(self.list_of_io_processes, self.mounts)
self.assertTrue(ret, "IO failed on some of the clients")
self.is_io_running = False
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