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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:
Volume start when one of the brick is absent
"""
import random
from glusto.core import Glusto as g
from glustolibs.gluster.exceptions import ExecutionError
from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
from glustolibs.gluster.volume_ops import (volume_start, volume_status)
from glustolibs.gluster.brick_libs import get_all_bricks
from glustolibs.gluster.volume_libs import cleanup_volume
@runs_on([['distributed', 'replicated', 'distributed-replicated',
'dispersed', 'distributed-dispersed', 'arbiter',
'distributed-arbiter'], ['glusterfs']])
class TestVolumeStatusWithAbsentBricks(GlusterBaseClass):
def setUp(self):
# Calling GlusterBaseClass setUp
self.get_super_method(self, 'setUp')()
# Creating Volume
g.log.info("Started creating volume")
ret = self.setup_volume(False, True)
if ret:
g.log.info("Volme created successfully : %s", self.volname)
else:
raise ExecutionError("Volume creation failed: %s" % self.volname)
def tearDown(self):
# Stopping the volume and Cleaning up the volume
ret = cleanup_volume(self.mnode, self.volname)
if not ret:
raise ExecutionError("Failed to cleanup volume")
g.log.info("Volume deleted successfully : %s", self.volname)
# Calling GlusterBaseClass tearDown
self.get_super_method(self, 'tearDown')()
def test_volume_absent_bricks(self):
"""
Test Case:
1) Create Volume
2) Remove any one Brick directory
3) Start Volume and compare the failure message
4) Check the gluster volume status nad compare the status message
"""
# Fetching the brick list
brick_list = get_all_bricks(self.mnode, self.volname)
self.assertIsNotNone(brick_list, "Failed to get the bricks in"
" the volume")
# Command for removing brick directory
random_brick = random.choice(brick_list)
node, brick_path = random_brick.split(r':')
cmd = 'rm -rf ' + brick_path
# Removing brick directory of one node
ret, _, _ = g.run(node, cmd)
self.assertEqual(ret, 0, "Failed to remove brick dir")
g.log.info("Brick directory removed successfully")
# Starting volume
ret, _, err = volume_start(self.mnode, self.volname)
self.assertNotEqual(ret, 0, "Unexpected: Volume started successfully "
"even though brick directory is removed "
"for %s" % self.volname)
g.log.info("Expected: Failed to start volume %s", self.volname)
# Checking volume start failed message
msg = "Failed to find brick directory"
self.assertIn(msg, err, "Expected message is %s but volume start "
"command failed with this "
"message %s" % (msg, err))
g.log.info("Volume start failed with correct error message %s", err)
# Checking Volume status
ret, _, err = volume_status(self.mnode, self.volname)
self.assertNotEqual(ret, 0, "Success in getting volume status, volume "
"status should fail when volume is in "
"not started state ")
g.log.info("Failed to get volume status which is expected")
# Checking volume status message
msg = ' '.join(['Volume', self.volname, 'is not started'])
self.assertIn(msg, err, 'Incorrect error message for gluster vol '
'status')
g.log.info("Correct error message for volume status")
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