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# Copyright (C) 2016-2017 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.
import random
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_libs import setup_volume, cleanup_volume
from glustolibs.gluster.volume_ops import (get_volume_list)
from glustolibs.gluster.brick_ops import add_brick
from glustolibs.gluster.lib_utils import form_bricks_list
from glustolibs.gluster.rebalance_ops import rebalance_start
@runs_on([['distributed-replicated'], ['glusterfs']])
class TestVolumeCreate(GlusterBaseClass):
@classmethod
def setUpClass(cls):
# Calling GlusterBaseClass setUpClass
GlusterBaseClass.setUpClass.im_func(cls)
# check whether peers are in connected state
if not cls.validate_peers_are_connected():
raise ExecutionError("Peers are not in connected state")
def tearDown(self):
# clean up all volumes
vol_list = get_volume_list(self.mnode)
if vol_list is None:
raise ExecutionError("Failed to get the volume list")
for volume in vol_list:
if not cleanup_volume(self.mnode, volume):
raise ExecutionError("Unable to delete volume % s" % volume)
g.log.info("Volume deleted successfully : %s", volume)
GlusterBaseClass.tearDown.im_func(self)
def test_add_brick_functionality(self):
# create and start volume
self.assertTrue(
setup_volume(self.mnode, self.all_servers_info, self.volume),
"Failed to create and start volume %s" % self.volname)
g.log.info("Volume created and started successfully")
# form bricks list to test add brick functionality
replica_count_of_volume = self.volume['voltype']['replica_count']
num_of_bricks = 4 * replica_count_of_volume
bricks_list = form_bricks_list(self.mnode, self.volname, num_of_bricks,
self.servers, self.all_servers_info)
self.assertIsNotNone(bricks_list, "Bricks list is None")
# Try to add a single brick to volume, which should fail as it is a
# replicated volume, we should pass multiple of replica count number
# of bricks
self.assertNotEqual(
add_brick(self.mnode, self.volname, bricks_list[0])[0], 0,
"Expected: It should fail to add a single brick to a replicated "
"volume. Actual: Successfully added single brick to volume")
g.log.info("Failed to add a single brick to replicated volume "
"(as expected)")
# add brick replica count number of bricks in which one is a
# non existing brick (not using the brick used in the earlier test)
kwargs = {'replica_count': replica_count_of_volume}
bricks_to_add = bricks_list[1:replica_count_of_volume + 1]
# make one of the bricks a non-existing one (randomly)
random_index = random.randint(0, replica_count_of_volume - 1)
bricks_to_add[random_index] += "/non_existing_brick"
self.assertNotEqual(
add_brick(self.mnode, self.volname, bricks_to_add, **kwargs)[0], 0,
"Expected: It should fail to add a non existing brick to volume. "
"Actual: Successfully added a non existing brick to volume")
g.log.info("Failed to add a non existing brick to volume "
"(as expected)")
# add a brick from a node which is not a part of the cluster
# (not using bricks used in earlier tests)
bricks_to_add = bricks_list[replica_count_of_volume + 1:
(2 * replica_count_of_volume) + 1]
# change one (random) brick's node name to a non existent node
random_index = random.randint(0, replica_count_of_volume - 1)
brick_to_change = bricks_to_add[random_index].split(":")
brick_to_change[0] = "abc.def.ghi.jkl"
bricks_to_add[random_index] = ":".join(brick_to_change)
self.assertNotEqual(
add_brick(self.mnode, self.volname, bricks_to_add, **kwargs)[0], 0,
"Expected: It should fail to add brick from a node which is not "
"part of a cluster. Actual: Successfully added bricks from node "
"which is not a part of cluster to volume")
g.log.info("Failed to add bricks from node which is not a part of "
"cluster to volume (as expected)")
# add correct number of valid bricks, it should succeed
# (not using bricks used in earlier tests)
bricks_to_add = bricks_list[(2 * replica_count_of_volume) + 1:
(3 * replica_count_of_volume) + 1]
self.assertEqual(
add_brick(self.mnode, self.volname, bricks_to_add, **kwargs)[0], 0,
"Failed to add the bricks to the volume")
g.log.info("Successfully added bricks to volume")
# Perform rebalance start operation
self.assertEqual(rebalance_start(self.mnode, self.volname)[0], 0,
"Rebalance start failed")
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