1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
# 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 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.rebalance_ops import (
rebalance_start, wait_for_rebalance_to_complete)
from glustolibs.gluster.volume_libs import expand_volume
from glustolibs.io.utils import collect_mounts_arequal
from glustolibs.gluster.mount_ops import mount_volume
from glustolibs.gluster.volume_ops import (volume_create, volume_start,
volume_stop, volume_delete)
from glustolibs.gluster.lib_utils import form_bricks_list
@runs_on([['distributed', 'distributed-replicated'], ['glusterfs']])
class TestRebalanceTwoVolumes(GlusterBaseClass):
def setUp(self):
self.get_super_method(self, 'setUp')()
# Setup Volume
if not self.setup_volume_and_mount_volume([self.mounts[0]]):
raise ExecutionError("Failed to Setup and mount volume")
self.first_client = self.mounts[0].client_system
self.second_vol_name = "second_volume"
self.second_mountpoint = "/mnt/{}".format(self.second_vol_name)
self.is_second_volume_created = False
def tearDown(self):
# Unmount and clean volume
if not self.unmount_volume_and_cleanup_volume([self.mounts[0]]):
raise ExecutionError("Failed to Cleanup Volume")
if self.is_second_volume_created:
# Stop the 2nd volume
ret, _, _ = volume_stop(self.mnode, self.second_vol_name)
self.assertEqual(ret, 0, ("volume stop failed for %s"
% self.second_vol_name))
g.log.info("Volume %s stopped", self.second_vol_name)
# Delete the 2nd volume
ret = volume_delete(self.mnode, self.second_vol_name)
self.assertTrue(ret, ("Failed to cleanup the Volume "
"%s", self.second_vol_name))
g.log.info("Volume deleted successfully : %s",
self.second_vol_name)
# Calling GlusterBaseClass tearDown
self.get_super_method(self, 'tearDown')()
def test_rebalance_two_volumes(self):
"""
Test case:
1. Create a volume, start it and mount it
2. Create a 2nd volume, start it and mount it
3. Create files on mount points
4. Collect arequal checksum on mount point pre-rebalance
5. Expand the volumes
6. Start rebalance simultaneously on the 2 volumes
7. Wait for rebalance to complete
8. Collect arequal checksum on mount point post-rebalance
and compare with value from step 4
"""
# Get brick list
bricks_list = form_bricks_list(self.mnode, self.volname, 3,
self.servers, self.all_servers_info)
self.assertIsNotNone(bricks_list, "Bricks list is None")
# Create 2nd volume
ret, _, _ = volume_create(self.mnode, self.second_vol_name,
bricks_list)
self.assertEqual(ret, 0, ("Failed to create volume %s") % (
self.second_vol_name))
g.log.info("Volume %s created successfully", self.second_vol_name)
# Start 2nd volume
ret, _, _ = volume_start(self.mnode, self.second_vol_name)
self.assertEqual(ret, 0, ("Failed to start volume %s") % (
self.second_vol_name))
g.log.info("Started volume %s", self.second_vol_name)
self.is_second_volume_created = True
# Mount 2nd volume
for mount_obj in self.mounts:
ret, _, _ = mount_volume(self.second_vol_name,
mtype=self.mount_type,
mpoint=self.second_mountpoint,
mserver=self.mnode,
mclient=mount_obj.client_system)
self.assertEqual(ret, 0, ("Failed to mount volume %s") % (
self.second_vol_name))
g.log.info("Volume mounted successfully : %s",
self.second_vol_name)
# Start I/O from mount point for volume 1 and wait for it to complete
cmd = ("cd %s; for i in {1..1000} ; do "
"dd if=/dev/urandom of=file$i bs=10M count=1; done"
% self.mounts[0].mountpoint)
ret, _, _ = g.run(self.first_client, cmd)
self.assertEqual(ret, 0, "IO failed on volume %s"
% self.volname)
# Start I/O from mount point for volume 2 and wait for it to complete
cmd = ("cd %s; for i in {1..1000} ; do "
"dd if=/dev/urandom of=file$i bs=10M count=1; done"
% self.second_mountpoint)
ret, _, _ = g.run(self.first_client, cmd)
self.assertEqual(ret, 0, "IO failed on volume %s"
% self.second_vol_name)
# Collect arequal checksum before rebalance
arequal_checksum_before = collect_mounts_arequal(self.mounts[0])
# Add bricks to volumes
for volume in (self.volname, self.second_vol_name):
ret = expand_volume(self.mnode, volume, self.servers,
self.all_servers_info)
self.assertTrue(ret, "Failed to add brick on volume %s"
% volume)
# Trigger rebalance
for volume in (self.volname, self.second_vol_name):
ret, _, _ = rebalance_start(self.mnode, volume,
force=True)
self.assertEqual(ret, 0, "Failed to start rebalance on the"
" volume %s" % volume)
# Wait for rebalance to complete
for volume in (self.volname, self.second_vol_name):
ret = wait_for_rebalance_to_complete(self.mnode, volume,
timeout=1200)
self.assertTrue(ret, "Rebalance is not yet complete on the volume"
" %s" % volume)
g.log.info("Rebalance successfully completed")
# Collect arequal checksum after rebalance
arequal_checksum_after = collect_mounts_arequal(self.mounts[0])
# Check for data loss by comparing arequal before and after rebalance
self.assertEqual(arequal_checksum_before, arequal_checksum_after,
"arequal checksum is NOT MATCHNG")
g.log.info("arequal checksum is SAME")
|
