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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
# Copyright (C) 2019 Red Hat, Inc.
#
# 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
# (at your option) any later version.
"""
Test sanlock client operations.
"""
from __future__ import absolute_import
import io
import signal
import struct
import pytest
from . constants import (
DELTA_DISK_MAGIC,
PAXOS_DISK_MAGIC,
PAXOS_DISK_CLEAR,
RINDEX_DISK_MAGIC,
RINDEX_ENTRIES_SECTORS,
RINDEX_ENTRY_SIZE
)
from . import util
from . units import MiB
def test_single_instance(sanlock_daemon):
# Starting another instance while the daemon must fail.
p = util.start_daemon()
try:
util.wait_for_termination(p, 1.0)
except util.TimeoutExpired:
p.kill()
p.wait()
assert p.returncode == 1
def test_start_after_kill():
# After killing the daemon, next instance should be able to start.
for i in range(5):
p = util.start_daemon()
try:
util.wait_for_daemon(0.5)
finally:
p.kill()
p.wait()
assert p.returncode == -signal.SIGKILL
def test_client_failure():
# No daemon is running, client must fail
with pytest.raises(util.CommandError) as e:
util.sanlock("client", "status")
assert e.value.returncode == 1
def test_init_lockspace(tmpdir, sanlock_daemon):
path = tmpdir.join("lockspace")
size = MiB
util.create_file(str(path), size)
lockspace = "name:1:%s:0" % path
util.sanlock("client", "init", "-s", lockspace)
with io.open(str(path), "rb") as f:
magic, = struct.unpack("< I", f.read(4))
assert magic == DELTA_DISK_MAGIC
# TODO: check more stuff here...
util.check_guard(str(path), size)
def test_init_resource(tmpdir, sanlock_daemon):
path = tmpdir.join("resources")
size = MiB
util.create_file(str(path), size)
resource = "ls_name:res_name:%s:0" % path
util.sanlock("client", "init", "-r", resource)
with io.open(str(path), "rb") as f:
magic, = struct.unpack("< I", f.read(4))
assert magic == PAXOS_DISK_MAGIC
# TODO: check more stuff here...
util.check_guard(str(path), size)
def test_format(tmpdir, sanlock_daemon):
path = tmpdir.join("rindex")
size = 3 * MiB
util.create_file(str(path), size)
rindex = "ls_name:%s:1M" % path
util.sanlock("client", "format", "-x", rindex)
with io.open(str(path), "rb") as f:
# The first slot should contain the rindex header sector.
f.seek(MiB)
magic, = struct.unpack("< I", f.read(4))
assert magic == RINDEX_DISK_MAGIC
# The rindex entries starts at the second rindex slot sector. All
# entries should be zeroed.
f.seek(MiB + 512)
entries_size = 512 * RINDEX_ENTRIES_SECTORS
assert f.read(entries_size) == b"\0" * entries_size
# The next slot should contain the internal lease.
f.seek(2 * MiB)
magic, = struct.unpack("< I", f.read(4))
assert magic == PAXOS_DISK_MAGIC
util.check_guard(str(path), size)
def test_create(tmpdir, sanlock_daemon):
path = tmpdir.join("rindex")
# Slots: lockspace rindex master-lease user-lease-1
size = 4 * MiB
util.create_file(str(path), size)
# Note: using 1 second io timeout (-o 1) for quicker tests.
lockspace = "ls_name:1:%s:0" % path
util.sanlock("client", "init", "-s", lockspace, "-o", "1")
rindex = "ls_name:%s:1M" % path
util.sanlock("client", "format", "-x", rindex)
util.sanlock("client", "add_lockspace", "-s", lockspace, "-o", "1")
util.sanlock("client", "create", "-x", rindex, "-e", "res")
with io.open(str(path), "rb") as f:
# New entry should be created at the first slot
# The first rindex sector is used by the rindex header.
f.seek(MiB + 512)
util.check_rindex_entry(f.read(RINDEX_ENTRY_SIZE), b"res", 3 * MiB, 0)
# The rest of the entries should not be modified.
rest = 512 * RINDEX_ENTRIES_SECTORS - RINDEX_ENTRY_SIZE
assert f.read(rest) == b"\0" * rest
# The next slot should contain the internal lease.
f.seek(3 * MiB)
magic, = struct.unpack("< I", f.read(4))
assert magic == PAXOS_DISK_MAGIC
util.check_guard(str(path), size)
def test_delete(tmpdir, sanlock_daemon):
path = tmpdir.join("rindex")
# Slots: lockspace rindex master-lease user-lease-1
size = 4 * MiB
util.create_file(str(path), size)
# Note: using 1 second io timeout (-o 1) for quicker tests.
lockspace = "ls_name:1:%s:0" % path
util.sanlock("client", "init", "-s", lockspace, "-o", "1")
rindex = "ls_name:%s:1M" % path
util.sanlock("client", "format", "-x", rindex)
util.sanlock("client", "add_lockspace", "-s", lockspace, "-o", "1")
util.sanlock("client", "create", "-x", rindex, "-e", "res")
util.sanlock("client", "delete", "-x", rindex, "-e", "res")
with io.open(str(path), "rb") as f:
# First entry should be cleared.
f.seek(MiB + 512)
util.check_rindex_entry(f.read(RINDEX_ENTRY_SIZE), b"", 0, 0)
# Rest of entries should not be modified.
rest = 512 * RINDEX_ENTRIES_SECTORS - RINDEX_ENTRY_SIZE
assert f.read(rest) == b"\0" * rest
# The next slot should contain a cleared lease.
f.seek(3 * MiB)
magic, = struct.unpack("< I", f.read(4))
assert magic == PAXOS_DISK_CLEAR
util.check_guard(str(path), size)
def test_lookup(tmpdir, sanlock_daemon):
path = tmpdir.join("rindex")
# Slots: lockspace rindex master-lease user-lease-1 ... user-lease-7
size = 10 * MiB
util.create_file(str(path), size)
# Note: using 1 second io timeout (-o 1) for quicker tests.
lockspace = "ls_name:1:%s:0" % path
util.sanlock("client", "init", "-s", lockspace, "-o", "1")
rindex = "ls_name:%s:1M" % path
util.sanlock("client", "format", "-x", rindex)
util.sanlock("client", "add_lockspace", "-s", lockspace, "-o", "1")
util.sanlock("client", "create", "-x", rindex, "-e", "res")
lookup = util.sanlock("client", "lookup", "-x", rindex, "-e", "res")
assert lookup == b"lookup done 0\nname res offset 3145728\n"
def test_lookup_uninitialized(tmpdir, sanlock_daemon):
path = tmpdir.join("rindex")
util.create_file(str(path), MiB)
rindex = "ls_name:%s:1M" % path
with pytest.raises(util.CommandError) as e:
util.sanlock("client", "lookup", "-x", rindex, "-e", "res")
assert e.value.returncode == 1
assert e.value.stdout == b"lookup done -2\n"
assert e.value.stderr == b""
def test_lookup_missing(tmpdir, sanlock_daemon):
path = tmpdir.join("rindex")
# Slots: lockspace rindex master-lease user-lease-1 ... user-lease-7
size = 10 * MiB
util.create_file(str(path), size)
# Note: using 1 second io timeout (-o 1) for quicker tests.
lockspace = "ls_name:1:%s:0" % path
util.sanlock("client", "init", "-s", lockspace, "-o", "1")
rindex = "ls_name:%s:1M" % path
util.sanlock("client", "format", "-x", rindex)
util.sanlock("client", "add_lockspace", "-s", lockspace, "-o", "1")
with pytest.raises(util.CommandError) as e:
util.sanlock("client", "lookup", "-x", rindex, "-e", "res")
assert e.value.returncode == 1
assert e.value.stdout == b"lookup done -2\n"
assert e.value.stderr == b""
|
