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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.
""" Description:
Setting reserved port range for gluster
"""
from random import choice
from glusto.core import Glusto as g
from glustolibs.gluster.exceptions import ExecutionError
from glustolibs.gluster.gluster_base_class import GlusterBaseClass
from glustolibs.gluster.volume_ops import (volume_create, volume_start,
get_volume_list)
from glustolibs.gluster.volume_libs import cleanup_volume
from glustolibs.gluster.lib_utils import get_servers_bricks_dict
from glustolibs.gluster.gluster_init import restart_glusterd
from glustolibs.gluster.peer_ops import wait_for_peers_to_connect
class TestReservedPortRangeForGluster(GlusterBaseClass):
def tearDown(self):
# Reset port range if some test fails
if self.port_range_changed:
cmd = "sed -i 's/49200/60999/' /etc/glusterfs/glusterd.vol"
ret, _, _ = g.run(self.mnode, cmd)
self.assertEqual(ret, 0, "Failed to set the max-port back to"
" 60999 in glusterd.vol file")
# 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:
ret = cleanup_volume(self.mnode, volume)
if not ret:
raise ExecutionError("Unable to delete volume %s" % volume)
g.log.info("Volume deleted successfully : %s", volume)
# Calling baseclass tearDown method
self.get_super_method(self, 'tearDown')()
def test_reserved_port_range_for_gluster(self):
"""
Test Case:
1) Set the max-port option in glusterd.vol file to 49200
2) Restart glusterd on one of the node
3) Create 50 volumes in a loop
4) Try to start the 50 volumes in a loop
5) Confirm that the 50th volume failed to start
6) Confirm the error message, due to which volume failed to start
7) Set the max-port option in glusterd.vol file back to default value
8) Restart glusterd on the same node
9) Starting the 50th volume should succeed now
"""
# Set max port number as 49200 in glusterd.vol file
cmd = "sed -i 's/60999/49200/' /etc/glusterfs/glusterd.vol"
ret, _, _ = g.run(self.mnode, cmd)
self.assertEqual(ret, 0, "Failed to set the max-port to 49200 in"
" glusterd.vol file")
self.port_range_changed = True
# Restart glusterd
ret = restart_glusterd(self.mnode)
self.assertTrue(ret, "Failed to restart glusterd")
g.log.info("Successfully restarted glusterd on node: %s", self.mnode)
# Check node on which glusterd was restarted is back to 'Connected'
# state from any other peer
ret = wait_for_peers_to_connect(self.servers[1], self.servers)
self.assertTrue(ret, "All the peers are not in connected state")
# Fetch the available bricks dict
bricks_dict = get_servers_bricks_dict(self.servers,
self.all_servers_info)
self.assertIsNotNone(bricks_dict, "Failed to get the bricks dict")
# Create 50 volumes in a loop
for i in range(1, 51):
self.volname = "volume-%d" % i
bricks_list = []
j = 0
for key, value in bricks_dict.items():
j += 1
brick = choice(value)
brick = "{}:{}/{}_brick-{}".format(key, brick,
self.volname, j)
bricks_list.append(brick)
ret, _, _ = volume_create(self.mnode, self.volname, bricks_list)
self.assertEqual(ret, 0, "Failed to create volume: %s"
% self.volname)
g.log.info("Successfully created volume: %s", self.volname)
# Try to start 50 volumes in loop
for i in range(1, 51):
self.volname = "volume-%d" % i
ret, _, err = volume_start(self.mnode, self.volname)
if ret:
break
g.log.info("Successfully started all the volumes until volume: %s",
self.volname)
# Confirm if the 50th volume failed to start
self.assertEqual(i, 50, "Failed to start the volumes volume-1 to"
" volume-49 in a loop")
# Confirm the error message on volume start fail
err_msg = ("volume start: volume-50: failed: Commit failed on"
" localhost. Please check log file for details.")
self.assertEqual(err.strip(), err_msg, "Volume start failed with"
" a different error message")
# Confirm the error message from the log file
cmd = ("cat /var/log/glusterfs/glusterd.log | %s"
% "grep -i 'All the ports in the range are exhausted' | wc -l")
ret, out, _ = g.run(self.mnode, cmd)
self.assertEqual(ret, 0, "Failed to 'grep' the glusterd.log file")
self.assertNotEqual(out, "0", "Volume start didn't fail with expected"
" error message")
# Set max port number back to default value in glusterd.vol file
cmd = "sed -i 's/49200/60999/' /etc/glusterfs/glusterd.vol"
ret, _, _ = g.run(self.mnode, cmd)
self.assertEqual(ret, 0, "Failed to set the max-port back to 60999 in"
" glusterd.vol file")
self.port_range_changed = False
# Restart glusterd on the same node
ret = restart_glusterd(self.mnode)
self.assertTrue(ret, "Failed to restart glusterd")
g.log.info("Successfully restarted glusterd on node: %s", self.mnode)
# Starting the 50th volume should succeed now
self.volname = "volume-%d" % i
ret, _, _ = volume_start(self.mnode, self.volname)
self.assertEqual(ret, 0, "Failed to start volume: %s" % self.volname)
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