| 1 | #!/usr/bin/env python3 |
| 2 | # group: rw auto backing |
| 3 | # |
| 4 | # Tests for image mirroring. |
| 5 | # |
| 6 | # Copyright (C) 2012 Red Hat, Inc. |
| 7 | # |
| 8 | # This program is free software; you can redistribute it and/or modify |
| 9 | # it under the terms of the GNU General Public License as published by |
| 10 | # the Free Software Foundation; either version 2 of the License, or |
| 11 | # (at your option) any later version. |
| 12 | # |
| 13 | # This program is distributed in the hope that it will be useful, |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | # GNU General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 | # |
| 21 | |
| 22 | import time |
| 23 | import os |
| 24 | import re |
| 25 | import json |
| 26 | import iotests |
| 27 | from iotests import qemu_img, qemu_img_map, qemu_io |
| 28 | |
| 29 | backing_img = os.path.join(iotests.test_dir, 'backing.img') |
| 30 | target_backing_img = os.path.join(iotests.test_dir, 'target-backing.img') |
| 31 | test_img = os.path.join(iotests.test_dir, 'test.img') |
| 32 | target_img = os.path.join(iotests.test_dir, 'target.img') |
| 33 | |
| 34 | quorum_img1 = os.path.join(iotests.test_dir, 'quorum1.img') |
| 35 | quorum_img2 = os.path.join(iotests.test_dir, 'quorum2.img') |
| 36 | quorum_img3 = os.path.join(iotests.test_dir, 'quorum3.img') |
| 37 | quorum_repair_img = os.path.join(iotests.test_dir, 'quorum_repair.img') |
| 38 | quorum_snapshot_file = os.path.join(iotests.test_dir, 'quorum_snapshot.img') |
| 39 | |
| 40 | nbd_sock_path = os.path.join(iotests.sock_dir, 'nbd.sock') |
| 41 | |
| 42 | class TestSingleDrive(iotests.QMPTestCase): |
| 43 | image_len = 1 * 1024 * 1024 # MB |
| 44 | qmp_cmd = 'drive-mirror' |
| 45 | qmp_target = target_img |
| 46 | |
| 47 | def setUp(self): |
| 48 | iotests.create_image(backing_img, self.image_len) |
| 49 | qemu_img('create', '-f', iotests.imgfmt, |
| 50 | '-o', 'backing_file=%s' % backing_img, '-F', 'raw', test_img) |
| 51 | self.vm = iotests.VM().add_drive(test_img, "node-name=top,backing.node-name=base") |
| 52 | if iotests.qemu_default_machine == 'pc': |
| 53 | self.vm.add_drive(None, 'media=cdrom', 'ide') |
| 54 | self.vm.launch() |
| 55 | |
| 56 | def tearDown(self): |
| 57 | self.vm.shutdown() |
| 58 | os.remove(test_img) |
| 59 | os.remove(backing_img) |
| 60 | try: |
| 61 | os.remove(target_img) |
| 62 | except OSError: |
| 63 | pass |
| 64 | |
| 65 | def test_complete(self): |
| 66 | self.assert_no_active_block_jobs() |
| 67 | |
| 68 | self.vm.cmd(self.qmp_cmd, device='drive0', sync='full', |
| 69 | target=self.qmp_target) |
| 70 | |
| 71 | self.complete_and_wait() |
| 72 | result = self.vm.qmp('query-block') |
| 73 | self.assert_qmp(result, 'return[0]/inserted/file', target_img) |
| 74 | self.vm.shutdown() |
| 75 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 76 | 'target image does not match source after mirroring') |
| 77 | |
| 78 | def test_cancel(self): |
| 79 | self.assert_no_active_block_jobs() |
| 80 | |
| 81 | self.vm.cmd(self.qmp_cmd, device='drive0', sync='full', |
| 82 | target=self.qmp_target) |
| 83 | |
| 84 | self.cancel_and_wait(force=True) |
| 85 | result = self.vm.qmp('query-block') |
| 86 | self.assert_qmp(result, 'return[0]/inserted/file', test_img) |
| 87 | |
| 88 | def test_cancel_after_ready(self): |
| 89 | self.assert_no_active_block_jobs() |
| 90 | |
| 91 | self.vm.cmd(self.qmp_cmd, device='drive0', sync='full', |
| 92 | target=self.qmp_target) |
| 93 | |
| 94 | self.wait_ready_and_cancel() |
| 95 | result = self.vm.qmp('query-block') |
| 96 | self.assert_qmp(result, 'return[0]/inserted/file', test_img) |
| 97 | self.vm.shutdown() |
| 98 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 99 | 'target image does not match source after mirroring') |
| 100 | |
| 101 | def test_pause(self): |
| 102 | self.assert_no_active_block_jobs() |
| 103 | |
| 104 | self.vm.cmd(self.qmp_cmd, device='drive0', sync='full', |
| 105 | target=self.qmp_target) |
| 106 | |
| 107 | self.pause_job('drive0') |
| 108 | |
| 109 | result = self.vm.qmp('query-block-jobs') |
| 110 | offset = self.dictpath(result, 'return[0]/offset') |
| 111 | |
| 112 | time.sleep(0.5) |
| 113 | result = self.vm.qmp('query-block-jobs') |
| 114 | self.assert_qmp(result, 'return[0]/offset', offset) |
| 115 | |
| 116 | self.vm.cmd('block-job-resume', device='drive0') |
| 117 | |
| 118 | self.complete_and_wait() |
| 119 | self.vm.shutdown() |
| 120 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 121 | 'target image does not match source after mirroring') |
| 122 | |
| 123 | def test_small_buffer(self): |
| 124 | self.assert_no_active_block_jobs() |
| 125 | |
| 126 | # A small buffer is rounded up automatically |
| 127 | self.vm.cmd(self.qmp_cmd, device='drive0', sync='full', |
| 128 | buf_size=4096, target=self.qmp_target) |
| 129 | |
| 130 | self.complete_and_wait() |
| 131 | result = self.vm.qmp('query-block') |
| 132 | self.assert_qmp(result, 'return[0]/inserted/file', target_img) |
| 133 | self.vm.shutdown() |
| 134 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 135 | 'target image does not match source after mirroring') |
| 136 | |
| 137 | def test_small_buffer2(self): |
| 138 | self.assert_no_active_block_jobs() |
| 139 | |
| 140 | qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,size=%d' |
| 141 | % (self.image_len, self.image_len), target_img) |
| 142 | self.vm.cmd(self.qmp_cmd, device='drive0', sync='full', |
| 143 | buf_size=65536, mode='existing', target=self.qmp_target) |
| 144 | |
| 145 | self.complete_and_wait() |
| 146 | result = self.vm.qmp('query-block') |
| 147 | self.assert_qmp(result, 'return[0]/inserted/file', target_img) |
| 148 | self.vm.shutdown() |
| 149 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 150 | 'target image does not match source after mirroring') |
| 151 | |
| 152 | def test_large_cluster(self): |
| 153 | self.assert_no_active_block_jobs() |
| 154 | |
| 155 | qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,backing_file=%s' |
| 156 | % (self.image_len, backing_img), |
| 157 | '-F', 'raw', target_img) |
| 158 | self.vm.cmd(self.qmp_cmd, device='drive0', sync='full', |
| 159 | mode='existing', target=self.qmp_target) |
| 160 | |
| 161 | self.complete_and_wait() |
| 162 | result = self.vm.qmp('query-block') |
| 163 | self.assert_qmp(result, 'return[0]/inserted/file', target_img) |
| 164 | self.vm.shutdown() |
| 165 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 166 | 'target image does not match source after mirroring') |
| 167 | |
| 168 | # Tests that the insertion of the mirror_top filter node doesn't make a |
| 169 | # difference to query-block |
| 170 | def test_implicit_node(self): |
| 171 | self.assert_no_active_block_jobs() |
| 172 | |
| 173 | self.vm.cmd(self.qmp_cmd, device='drive0', sync='full', |
| 174 | target=self.qmp_target) |
| 175 | |
| 176 | result = self.vm.qmp('query-block') |
| 177 | self.assert_qmp(result, 'return[0]/inserted/file', test_img) |
| 178 | self.assert_qmp(result, 'return[0]/inserted/drv', iotests.imgfmt) |
| 179 | self.assert_qmp(result, 'return[0]/inserted/backing_file', backing_img) |
| 180 | self.assert_qmp(result, 'return[0]/inserted/backing_file_depth', 1) |
| 181 | self.assert_qmp(result, 'return[0]/inserted/image/filename', test_img) |
| 182 | self.assert_qmp(result, 'return[0]/inserted/image/backing-image/filename', backing_img) |
| 183 | |
| 184 | result = self.vm.qmp('query-blockstats') |
| 185 | self.assert_qmp(result, 'return[0]/node-name', 'top') |
| 186 | self.assert_qmp(result, 'return[0]/backing/node-name', 'base') |
| 187 | |
| 188 | self.cancel_and_wait(force=True) |
| 189 | result = self.vm.qmp('query-block') |
| 190 | self.assert_qmp(result, 'return[0]/inserted/file', test_img) |
| 191 | self.assert_qmp(result, 'return[0]/inserted/drv', iotests.imgfmt) |
| 192 | self.assert_qmp(result, 'return[0]/inserted/backing_file', backing_img) |
| 193 | self.assert_qmp(result, 'return[0]/inserted/backing_file_depth', 1) |
| 194 | self.assert_qmp(result, 'return[0]/inserted/image/filename', test_img) |
| 195 | self.assert_qmp(result, 'return[0]/inserted/image/backing-image/filename', backing_img) |
| 196 | |
| 197 | result = self.vm.qmp('query-blockstats') |
| 198 | self.assert_qmp(result, 'return[0]/node-name', 'top') |
| 199 | self.assert_qmp(result, 'return[0]/backing/node-name', 'base') |
| 200 | |
| 201 | def test_medium_not_found(self): |
| 202 | if iotests.qemu_default_machine != 'pc': |
| 203 | return |
| 204 | |
| 205 | result = self.vm.qmp(self.qmp_cmd, device='ide1-cd0', sync='full', |
| 206 | target=self.qmp_target) |
| 207 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 208 | |
| 209 | def test_image_not_found(self): |
| 210 | result = self.vm.qmp(self.qmp_cmd, device='drive0', sync='full', |
| 211 | mode='existing', target=self.qmp_target) |
| 212 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 213 | |
| 214 | def test_device_not_found(self): |
| 215 | result = self.vm.qmp(self.qmp_cmd, device='nonexistent', sync='full', |
| 216 | target=self.qmp_target) |
| 217 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 218 | |
| 219 | class TestSingleBlockdev(TestSingleDrive): |
| 220 | qmp_cmd = 'blockdev-mirror' |
| 221 | qmp_target = 'node1' |
| 222 | |
| 223 | def setUp(self): |
| 224 | TestSingleDrive.setUp(self) |
| 225 | qemu_img('create', '-f', iotests.imgfmt, |
| 226 | '-o', 'backing_file=%s' % backing_img, '-F', 'raw', target_img) |
| 227 | args = {'driver': iotests.imgfmt, |
| 228 | 'node-name': self.qmp_target, |
| 229 | 'file': { 'filename': target_img, 'driver': 'file' } } |
| 230 | self.vm.cmd("blockdev-add", args) |
| 231 | |
| 232 | def test_mirror_to_self(self): |
| 233 | result = self.vm.qmp(self.qmp_cmd, job_id='job0', |
| 234 | device=self.qmp_target, sync='full', |
| 235 | target=self.qmp_target) |
| 236 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 237 | |
| 238 | def do_test_resize(self, device, node): |
| 239 | def pre_finalize(): |
| 240 | if device: |
| 241 | result = self.vm.qmp('block_resize', device=device, size=65536) |
| 242 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 243 | |
| 244 | result = self.vm.qmp('block_resize', node_name=node, size=65536) |
| 245 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 246 | |
| 247 | self.vm.cmd(self.qmp_cmd, job_id='job0', device='drive0', |
| 248 | sync='full', target=self.qmp_target, |
| 249 | auto_finalize=False, auto_dismiss=False) |
| 250 | |
| 251 | result = self.vm.run_job('job0', auto_finalize=False, |
| 252 | pre_finalize=pre_finalize) |
| 253 | self.assertEqual(result, None) |
| 254 | |
| 255 | def test_source_resize(self): |
| 256 | self.do_test_resize('drive0', 'top') |
| 257 | |
| 258 | def test_target_resize(self): |
| 259 | self.do_test_resize(None, self.qmp_target) |
| 260 | |
| 261 | def do_test_target_size(self, size): |
| 262 | self.vm.cmd('block_resize', node_name=self.qmp_target, |
| 263 | size=size) |
| 264 | |
| 265 | self.vm.cmd(self.qmp_cmd, job_id='job0', |
| 266 | device='drive0', sync='full', auto_dismiss=False, |
| 267 | target=self.qmp_target) |
| 268 | |
| 269 | result = self.vm.run_job('job0') |
| 270 | self.assertEqual(result, 'Source and target image have different sizes') |
| 271 | |
| 272 | # qed does not support shrinking |
| 273 | @iotests.skip_for_formats(('qed')) |
| 274 | def test_small_target(self): |
| 275 | self.do_test_target_size(self.image_len // 2) |
| 276 | |
| 277 | def test_large_target(self): |
| 278 | self.do_test_target_size(self.image_len * 2) |
| 279 | |
| 280 | test_large_cluster = None |
| 281 | test_image_not_found = None |
| 282 | test_small_buffer2 = None |
| 283 | |
| 284 | class TestSingleDriveZeroLength(TestSingleDrive): |
| 285 | image_len = 0 |
| 286 | test_small_buffer2 = None |
| 287 | test_large_cluster = None |
| 288 | |
| 289 | class TestSingleBlockdevZeroLength(TestSingleBlockdev): |
| 290 | image_len = 0 |
| 291 | test_small_target = None |
| 292 | test_large_target = None |
| 293 | |
| 294 | class TestSingleDriveUnalignedLength(TestSingleDrive): |
| 295 | image_len = 1025 * 1024 |
| 296 | test_small_buffer2 = None |
| 297 | test_large_cluster = None |
| 298 | |
| 299 | class TestSingleBlockdevUnalignedLength(TestSingleBlockdev): |
| 300 | image_len = 1025 * 1024 |
| 301 | |
| 302 | class TestMirrorNoBacking(iotests.QMPTestCase): |
| 303 | image_len = 2 * 1024 * 1024 # MB |
| 304 | |
| 305 | def setUp(self): |
| 306 | iotests.create_image(backing_img, TestMirrorNoBacking.image_len) |
| 307 | qemu_img('create', '-f', iotests.imgfmt, |
| 308 | '-o', 'backing_file=%s' % backing_img, '-F', 'raw', test_img) |
| 309 | self.vm = iotests.VM().add_drive(test_img) |
| 310 | self.vm.launch() |
| 311 | |
| 312 | def tearDown(self): |
| 313 | self.vm.shutdown() |
| 314 | os.remove(test_img) |
| 315 | os.remove(backing_img) |
| 316 | try: |
| 317 | os.remove(target_backing_img) |
| 318 | except: |
| 319 | pass |
| 320 | os.remove(target_img) |
| 321 | |
| 322 | def test_complete(self): |
| 323 | self.assert_no_active_block_jobs() |
| 324 | |
| 325 | qemu_img('create', '-f', iotests.imgfmt, |
| 326 | '-o', 'backing_file=%s' % backing_img, '-F', 'raw', target_img) |
| 327 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 328 | mode='existing', target=target_img) |
| 329 | |
| 330 | self.complete_and_wait() |
| 331 | result = self.vm.qmp('query-block') |
| 332 | self.assert_qmp(result, 'return[0]/inserted/file', target_img) |
| 333 | self.vm.shutdown() |
| 334 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 335 | 'target image does not match source after mirroring') |
| 336 | |
| 337 | def test_cancel(self): |
| 338 | self.assert_no_active_block_jobs() |
| 339 | |
| 340 | qemu_img('create', '-f', iotests.imgfmt, |
| 341 | '-o', 'backing_file=%s' % backing_img, '-F', 'raw', target_img) |
| 342 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 343 | mode='existing', target=target_img) |
| 344 | |
| 345 | self.wait_ready_and_cancel() |
| 346 | result = self.vm.qmp('query-block') |
| 347 | self.assert_qmp(result, 'return[0]/inserted/file', test_img) |
| 348 | self.vm.shutdown() |
| 349 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 350 | 'target image does not match source after mirroring') |
| 351 | |
| 352 | def test_large_cluster(self): |
| 353 | self.assert_no_active_block_jobs() |
| 354 | |
| 355 | # qemu-img create fails if the image is not there |
| 356 | qemu_img('create', '-f', iotests.imgfmt, '-o', 'size=%d' |
| 357 | %(TestMirrorNoBacking.image_len), target_backing_img) |
| 358 | qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,backing_file=%s' |
| 359 | % (TestMirrorNoBacking.image_len, target_backing_img), |
| 360 | '-F', iotests.imgfmt, target_img) |
| 361 | |
| 362 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 363 | mode='existing', target=target_img) |
| 364 | |
| 365 | self.complete_and_wait() |
| 366 | result = self.vm.qmp('query-block') |
| 367 | self.assert_qmp(result, 'return[0]/inserted/file', target_img) |
| 368 | self.vm.shutdown() |
| 369 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 370 | 'target image does not match source after mirroring') |
| 371 | |
| 372 | class TestMirrorResized(iotests.QMPTestCase): |
| 373 | backing_len = 1 * 1024 * 1024 # MB |
| 374 | image_len = 2 * 1024 * 1024 # MB |
| 375 | |
| 376 | def setUp(self): |
| 377 | iotests.create_image(backing_img, TestMirrorResized.backing_len) |
| 378 | qemu_img('create', '-f', iotests.imgfmt, |
| 379 | '-o', 'backing_file=%s' % backing_img, '-F', 'raw', test_img) |
| 380 | qemu_img('resize', test_img, '2M') |
| 381 | self.vm = iotests.VM().add_drive(test_img) |
| 382 | self.vm.launch() |
| 383 | |
| 384 | def tearDown(self): |
| 385 | self.vm.shutdown() |
| 386 | os.remove(test_img) |
| 387 | os.remove(backing_img) |
| 388 | try: |
| 389 | os.remove(target_img) |
| 390 | except OSError: |
| 391 | pass |
| 392 | |
| 393 | def test_complete_top(self): |
| 394 | self.assert_no_active_block_jobs() |
| 395 | |
| 396 | self.vm.cmd('drive-mirror', device='drive0', sync='top', |
| 397 | target=target_img) |
| 398 | |
| 399 | self.complete_and_wait() |
| 400 | result = self.vm.qmp('query-block') |
| 401 | self.assert_qmp(result, 'return[0]/inserted/file', target_img) |
| 402 | self.vm.shutdown() |
| 403 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 404 | 'target image does not match source after mirroring') |
| 405 | |
| 406 | def test_complete_full(self): |
| 407 | self.assert_no_active_block_jobs() |
| 408 | |
| 409 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 410 | target=target_img) |
| 411 | |
| 412 | self.complete_and_wait() |
| 413 | result = self.vm.qmp('query-block') |
| 414 | self.assert_qmp(result, 'return[0]/inserted/file', target_img) |
| 415 | self.vm.shutdown() |
| 416 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 417 | 'target image does not match source after mirroring') |
| 418 | |
| 419 | class TestReadErrors(iotests.QMPTestCase): |
| 420 | image_len = 2 * 1024 * 1024 # MB |
| 421 | |
| 422 | # this should be a multiple of twice the default granularity |
| 423 | # so that we hit this offset first in state 1 |
| 424 | MIRROR_GRANULARITY = 1024 * 1024 |
| 425 | |
| 426 | def create_blkdebug_file(self, name, event, errno): |
| 427 | file = open(name, 'w') |
| 428 | file.write(''' |
| 429 | [inject-error] |
| 430 | state = "1" |
| 431 | event = "%s" |
| 432 | errno = "%d" |
| 433 | immediately = "off" |
| 434 | once = "on" |
| 435 | sector = "%d" |
| 436 | |
| 437 | [set-state] |
| 438 | state = "1" |
| 439 | event = "%s" |
| 440 | new_state = "2" |
| 441 | |
| 442 | [set-state] |
| 443 | state = "2" |
| 444 | event = "%s" |
| 445 | new_state = "1" |
| 446 | ''' % (event, errno, self.MIRROR_GRANULARITY // 512, event, event)) |
| 447 | file.close() |
| 448 | |
| 449 | def setUp(self): |
| 450 | self.blkdebug_file = backing_img + ".blkdebug" |
| 451 | iotests.create_image(backing_img, TestReadErrors.image_len) |
| 452 | self.create_blkdebug_file(self.blkdebug_file, "read_aio", 5) |
| 453 | qemu_img('create', '-f', iotests.imgfmt, |
| 454 | '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw' |
| 455 | % (self.blkdebug_file, backing_img), |
| 456 | test_img) |
| 457 | # Write something for tests that use sync='top' |
| 458 | qemu_io('-c', 'write %d 512' % (self.MIRROR_GRANULARITY + 65536), |
| 459 | test_img) |
| 460 | self.vm = iotests.VM().add_drive(test_img) |
| 461 | self.vm.launch() |
| 462 | |
| 463 | def tearDown(self): |
| 464 | self.vm.shutdown() |
| 465 | os.remove(test_img) |
| 466 | os.remove(target_img) |
| 467 | os.remove(backing_img) |
| 468 | os.remove(self.blkdebug_file) |
| 469 | |
| 470 | def test_report_read(self): |
| 471 | self.assert_no_active_block_jobs() |
| 472 | |
| 473 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 474 | target=target_img) |
| 475 | |
| 476 | completed = False |
| 477 | error = False |
| 478 | while not completed: |
| 479 | for event in self.vm.get_qmp_events(wait=True): |
| 480 | if event['event'] == 'BLOCK_JOB_ERROR': |
| 481 | self.assert_qmp(event, 'data/device', 'drive0') |
| 482 | self.assert_qmp(event, 'data/operation', 'read') |
| 483 | error = True |
| 484 | elif event['event'] == 'BLOCK_JOB_READY': |
| 485 | self.assertTrue(False, 'job completed unexpectedly') |
| 486 | elif event['event'] == 'BLOCK_JOB_COMPLETED': |
| 487 | self.assertTrue(error, 'job completed unexpectedly') |
| 488 | self.assert_qmp(event, 'data/type', 'mirror') |
| 489 | self.assert_qmp(event, 'data/device', 'drive0') |
| 490 | self.assert_qmp(event, 'data/error', 'Input/output error') |
| 491 | completed = True |
| 492 | elif event['event'] == 'JOB_STATUS_CHANGE': |
| 493 | self.assert_qmp(event, 'data/id', 'drive0') |
| 494 | |
| 495 | self.assert_no_active_block_jobs() |
| 496 | |
| 497 | def test_ignore_read(self): |
| 498 | self.assert_no_active_block_jobs() |
| 499 | |
| 500 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 501 | target=target_img, on_source_error='ignore') |
| 502 | |
| 503 | event = self.vm.get_qmp_event(wait=True) |
| 504 | while event['event'] == 'JOB_STATUS_CHANGE': |
| 505 | self.assert_qmp(event, 'data/id', 'drive0') |
| 506 | event = self.vm.get_qmp_event(wait=True) |
| 507 | |
| 508 | self.assertEqual(event['event'], 'BLOCK_JOB_ERROR') |
| 509 | self.assert_qmp(event, 'data/device', 'drive0') |
| 510 | self.assert_qmp(event, 'data/operation', 'read') |
| 511 | result = self.vm.qmp('query-block-jobs') |
| 512 | self.assertIn(result['return'][0]['status'], ['running', 'ready']) |
| 513 | self.complete_and_wait() |
| 514 | |
| 515 | def test_large_cluster(self): |
| 516 | self.assert_no_active_block_jobs() |
| 517 | |
| 518 | # Test COW into the target image. The first half of the |
| 519 | # cluster at MIRROR_GRANULARITY has to be copied from |
| 520 | # backing_img, even though sync='top'. |
| 521 | qemu_img('create', '-f', iotests.imgfmt, |
| 522 | '-ocluster_size=131072,backing_file=%s' %(backing_img), |
| 523 | '-F', 'raw', target_img) |
| 524 | self.vm.cmd('drive-mirror', device='drive0', sync='top', |
| 525 | on_source_error='ignore', |
| 526 | mode='existing', target=target_img) |
| 527 | |
| 528 | event = self.vm.get_qmp_event(wait=True) |
| 529 | while event['event'] == 'JOB_STATUS_CHANGE': |
| 530 | self.assert_qmp(event, 'data/id', 'drive0') |
| 531 | event = self.vm.get_qmp_event(wait=True) |
| 532 | |
| 533 | self.assertEqual(event['event'], 'BLOCK_JOB_ERROR') |
| 534 | self.assert_qmp(event, 'data/device', 'drive0') |
| 535 | self.assert_qmp(event, 'data/operation', 'read') |
| 536 | result = self.vm.qmp('query-block-jobs') |
| 537 | self.assertIn(result['return'][0]['status'], ['running', 'ready']) |
| 538 | self.complete_and_wait() |
| 539 | self.vm.shutdown() |
| 540 | |
| 541 | # Detach blkdebug to compare images successfully |
| 542 | qemu_img('rebase', '-f', iotests.imgfmt, '-u', '-b', backing_img, |
| 543 | '-F', 'raw', test_img) |
| 544 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 545 | 'target image does not match source after mirroring') |
| 546 | |
| 547 | def test_stop_read(self): |
| 548 | self.assert_no_active_block_jobs() |
| 549 | |
| 550 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 551 | target=target_img, on_source_error='stop') |
| 552 | |
| 553 | error = False |
| 554 | ready = False |
| 555 | while not ready: |
| 556 | for event in self.vm.get_qmp_events(wait=True): |
| 557 | if event['event'] == 'BLOCK_JOB_ERROR': |
| 558 | self.assert_qmp(event, 'data/device', 'drive0') |
| 559 | self.assert_qmp(event, 'data/operation', 'read') |
| 560 | |
| 561 | if self.vm.qmp('query-block-jobs')['return'][0]['status'] != 'paused': |
| 562 | self.vm.events_wait([( |
| 563 | 'JOB_STATUS_CHANGE', |
| 564 | {'data': {'id': 'drive0', 'status': 'paused'}} |
| 565 | )]) |
| 566 | |
| 567 | result = self.vm.qmp('query-block-jobs') |
| 568 | self.assert_qmp(result, 'return[0]/status', 'paused') |
| 569 | self.assert_qmp(result, 'return[0]/io-status', 'failed') |
| 570 | |
| 571 | self.vm.cmd('block-job-resume', device='drive0') |
| 572 | error = True |
| 573 | elif event['event'] == 'BLOCK_JOB_READY': |
| 574 | self.assertTrue(error, 'job completed unexpectedly') |
| 575 | self.assert_qmp(event, 'data/device', 'drive0') |
| 576 | ready = True |
| 577 | |
| 578 | result = self.vm.qmp('query-block-jobs') |
| 579 | self.assert_qmp(result, 'return[0]/status', 'ready') |
| 580 | self.assert_qmp(result, 'return[0]/io-status', 'ok') |
| 581 | |
| 582 | self.complete_and_wait(wait_ready=False) |
| 583 | self.assert_no_active_block_jobs() |
| 584 | |
| 585 | class TestWriteErrors(iotests.QMPTestCase): |
| 586 | image_len = 2 * 1024 * 1024 # MB |
| 587 | |
| 588 | # this should be a multiple of twice the default granularity |
| 589 | # so that we hit this offset first in state 1 |
| 590 | MIRROR_GRANULARITY = 1024 * 1024 |
| 591 | |
| 592 | def create_blkdebug_file(self, name, event, errno): |
| 593 | file = open(name, 'w') |
| 594 | file.write(''' |
| 595 | [inject-error] |
| 596 | state = "1" |
| 597 | event = "%s" |
| 598 | errno = "%d" |
| 599 | immediately = "off" |
| 600 | once = "on" |
| 601 | sector = "%d" |
| 602 | |
| 603 | [set-state] |
| 604 | state = "1" |
| 605 | event = "%s" |
| 606 | new_state = "2" |
| 607 | |
| 608 | [set-state] |
| 609 | state = "2" |
| 610 | event = "%s" |
| 611 | new_state = "1" |
| 612 | ''' % (event, errno, self.MIRROR_GRANULARITY // 512, event, event)) |
| 613 | file.close() |
| 614 | |
| 615 | def setUp(self): |
| 616 | self.blkdebug_file = target_img + ".blkdebug" |
| 617 | iotests.create_image(backing_img, TestWriteErrors.image_len) |
| 618 | self.create_blkdebug_file(self.blkdebug_file, "write_aio", 5) |
| 619 | qemu_img('create', '-f', iotests.imgfmt, |
| 620 | '-obacking_file=%s' %(backing_img), '-F', 'raw', test_img) |
| 621 | self.vm = iotests.VM().add_drive(test_img) |
| 622 | self.target_img = 'blkdebug:%s:%s' % (self.blkdebug_file, target_img) |
| 623 | qemu_img('create', '-f', iotests.imgfmt, '-osize=%d' %(TestWriteErrors.image_len), target_img) |
| 624 | self.vm.launch() |
| 625 | |
| 626 | def tearDown(self): |
| 627 | self.vm.shutdown() |
| 628 | os.remove(test_img) |
| 629 | os.remove(target_img) |
| 630 | os.remove(backing_img) |
| 631 | os.remove(self.blkdebug_file) |
| 632 | |
| 633 | def test_report_write(self): |
| 634 | self.assert_no_active_block_jobs() |
| 635 | |
| 636 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 637 | mode='existing', target=self.target_img) |
| 638 | |
| 639 | completed = False |
| 640 | error = False |
| 641 | while not completed: |
| 642 | for event in self.vm.get_qmp_events(wait=True): |
| 643 | if event['event'] == 'BLOCK_JOB_ERROR': |
| 644 | self.assert_qmp(event, 'data/device', 'drive0') |
| 645 | self.assert_qmp(event, 'data/operation', 'write') |
| 646 | error = True |
| 647 | elif event['event'] == 'BLOCK_JOB_READY': |
| 648 | self.assertTrue(False, 'job completed unexpectedly') |
| 649 | elif event['event'] == 'BLOCK_JOB_COMPLETED': |
| 650 | self.assertTrue(error, 'job completed unexpectedly') |
| 651 | self.assert_qmp(event, 'data/type', 'mirror') |
| 652 | self.assert_qmp(event, 'data/device', 'drive0') |
| 653 | self.assert_qmp(event, 'data/error', 'Input/output error') |
| 654 | completed = True |
| 655 | |
| 656 | self.assert_no_active_block_jobs() |
| 657 | |
| 658 | def test_ignore_write(self): |
| 659 | self.assert_no_active_block_jobs() |
| 660 | |
| 661 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 662 | mode='existing', target=self.target_img, |
| 663 | on_target_error='ignore') |
| 664 | |
| 665 | event = self.vm.event_wait(name='BLOCK_JOB_ERROR') |
| 666 | self.assertEqual(event['event'], 'BLOCK_JOB_ERROR') |
| 667 | self.assert_qmp(event, 'data/device', 'drive0') |
| 668 | self.assert_qmp(event, 'data/operation', 'write') |
| 669 | result = self.vm.qmp('query-block-jobs') |
| 670 | self.assertIn(result['return'][0]['status'], ['running', 'ready']) |
| 671 | self.complete_and_wait() |
| 672 | |
| 673 | def test_stop_write(self): |
| 674 | self.assert_no_active_block_jobs() |
| 675 | |
| 676 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 677 | mode='existing', target=self.target_img, |
| 678 | on_target_error='stop') |
| 679 | |
| 680 | error = False |
| 681 | ready = False |
| 682 | while not ready: |
| 683 | for event in self.vm.get_qmp_events(wait=True): |
| 684 | if event['event'] == 'BLOCK_JOB_ERROR': |
| 685 | self.assert_qmp(event, 'data/device', 'drive0') |
| 686 | self.assert_qmp(event, 'data/operation', 'write') |
| 687 | |
| 688 | if self.vm.qmp('query-block-jobs')['return'][0]['status'] != 'paused': |
| 689 | self.vm.events_wait([( |
| 690 | 'JOB_STATUS_CHANGE', |
| 691 | {'data': {'id': 'drive0', 'status': 'paused'}} |
| 692 | )]) |
| 693 | |
| 694 | result = self.vm.qmp('query-block-jobs') |
| 695 | self.assert_qmp(result, 'return[0]/status', 'paused') |
| 696 | self.assert_qmp(result, 'return[0]/io-status', 'failed') |
| 697 | |
| 698 | self.vm.cmd('block-job-resume', device='drive0') |
| 699 | |
| 700 | result = self.vm.qmp('query-block-jobs') |
| 701 | self.assertIn(result['return'][0]['status'], ['running', 'ready']) |
| 702 | self.assert_qmp(result, 'return[0]/io-status', 'ok') |
| 703 | error = True |
| 704 | elif event['event'] == 'BLOCK_JOB_READY': |
| 705 | self.assertTrue(error, 'job completed unexpectedly') |
| 706 | self.assert_qmp(event, 'data/device', 'drive0') |
| 707 | ready = True |
| 708 | |
| 709 | self.complete_and_wait(wait_ready=False) |
| 710 | self.assert_no_active_block_jobs() |
| 711 | |
| 712 | class TestSetSpeed(iotests.QMPTestCase): |
| 713 | image_len = 80 * 1024 * 1024 # MB |
| 714 | |
| 715 | def setUp(self): |
| 716 | qemu_img('create', backing_img, str(TestSetSpeed.image_len)) |
| 717 | qemu_img('create', '-f', iotests.imgfmt, |
| 718 | '-o', 'backing_file=%s' % backing_img, '-F', 'raw', test_img) |
| 719 | self.vm = iotests.VM().add_drive(test_img) |
| 720 | self.vm.launch() |
| 721 | |
| 722 | def tearDown(self): |
| 723 | self.vm.shutdown() |
| 724 | os.remove(test_img) |
| 725 | os.remove(backing_img) |
| 726 | os.remove(target_img) |
| 727 | |
| 728 | def test_set_speed(self): |
| 729 | self.assert_no_active_block_jobs() |
| 730 | |
| 731 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 732 | target=target_img) |
| 733 | |
| 734 | # Default speed is 0 |
| 735 | result = self.vm.qmp('query-block-jobs') |
| 736 | self.assert_qmp(result, 'return[0]/device', 'drive0') |
| 737 | self.assert_qmp(result, 'return[0]/speed', 0) |
| 738 | |
| 739 | self.vm.cmd('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024) |
| 740 | |
| 741 | # Ensure the speed we set was accepted |
| 742 | result = self.vm.qmp('query-block-jobs') |
| 743 | self.assert_qmp(result, 'return[0]/device', 'drive0') |
| 744 | self.assert_qmp(result, 'return[0]/speed', 8 * 1024 * 1024) |
| 745 | |
| 746 | self.wait_ready_and_cancel() |
| 747 | |
| 748 | # Check setting speed in drive-mirror works |
| 749 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 750 | target=target_img, speed=4*1024*1024) |
| 751 | |
| 752 | result = self.vm.qmp('query-block-jobs') |
| 753 | self.assert_qmp(result, 'return[0]/device', 'drive0') |
| 754 | self.assert_qmp(result, 'return[0]/speed', 4 * 1024 * 1024) |
| 755 | |
| 756 | self.wait_ready_and_cancel() |
| 757 | |
| 758 | def test_set_speed_invalid(self): |
| 759 | self.assert_no_active_block_jobs() |
| 760 | |
| 761 | result = self.vm.qmp('drive-mirror', device='drive0', sync='full', |
| 762 | target=target_img, speed=-1) |
| 763 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 764 | |
| 765 | self.assert_no_active_block_jobs() |
| 766 | |
| 767 | self.vm.cmd('drive-mirror', device='drive0', sync='full', |
| 768 | target=target_img) |
| 769 | |
| 770 | result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1) |
| 771 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 772 | |
| 773 | self.wait_ready_and_cancel() |
| 774 | |
| 775 | class TestUnbackedSource(iotests.QMPTestCase): |
| 776 | image_len = 2 * 1024 * 1024 # MB |
| 777 | |
| 778 | def setUp(self): |
| 779 | qemu_img('create', '-f', iotests.imgfmt, test_img, |
| 780 | str(TestUnbackedSource.image_len)) |
| 781 | self.vm = iotests.VM() |
| 782 | self.vm.launch() |
| 783 | self.vm.cmd('blockdev-add', node_name='drive0', |
| 784 | driver=iotests.imgfmt, |
| 785 | file={ |
| 786 | 'driver': 'file', |
| 787 | 'filename': test_img, |
| 788 | }) |
| 789 | |
| 790 | def tearDown(self): |
| 791 | self.vm.shutdown() |
| 792 | os.remove(test_img) |
| 793 | os.remove(target_img) |
| 794 | |
| 795 | def test_absolute_paths_full(self): |
| 796 | self.assert_no_active_block_jobs() |
| 797 | self.vm.cmd('drive-mirror', job_id='drive0', device='drive0', |
| 798 | sync='full', target=target_img, |
| 799 | mode='absolute-paths') |
| 800 | self.complete_and_wait() |
| 801 | self.assert_no_active_block_jobs() |
| 802 | |
| 803 | def test_absolute_paths_top(self): |
| 804 | self.assert_no_active_block_jobs() |
| 805 | self.vm.cmd('drive-mirror', job_id='drive0', device='drive0', |
| 806 | sync='top', target=target_img, |
| 807 | mode='absolute-paths') |
| 808 | self.complete_and_wait() |
| 809 | self.assert_no_active_block_jobs() |
| 810 | |
| 811 | def test_absolute_paths_none(self): |
| 812 | self.assert_no_active_block_jobs() |
| 813 | self.vm.cmd('drive-mirror', job_id='drive0', device='drive0', |
| 814 | sync='none', target=target_img, |
| 815 | mode='absolute-paths') |
| 816 | self.complete_and_wait() |
| 817 | self.assert_no_active_block_jobs() |
| 818 | |
| 819 | def test_existing_full(self): |
| 820 | qemu_img('create', '-f', iotests.imgfmt, target_img, |
| 821 | str(self.image_len)) |
| 822 | qemu_io('-c', 'write -P 42 0 64k', target_img) |
| 823 | |
| 824 | self.assert_no_active_block_jobs() |
| 825 | self.vm.cmd('drive-mirror', job_id='drive0', device='drive0', |
| 826 | sync='full', target=target_img, mode='existing') |
| 827 | self.complete_and_wait() |
| 828 | self.assert_no_active_block_jobs() |
| 829 | |
| 830 | self.vm.cmd('blockdev-del', node_name='drive0') |
| 831 | |
| 832 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 833 | 'target image does not match source after mirroring') |
| 834 | |
| 835 | def test_blockdev_full(self): |
| 836 | qemu_img('create', '-f', iotests.imgfmt, target_img, |
| 837 | str(self.image_len)) |
| 838 | qemu_io('-c', 'write -P 42 0 64k', target_img) |
| 839 | |
| 840 | self.vm.cmd('blockdev-add', node_name='target', |
| 841 | driver=iotests.imgfmt, |
| 842 | file={ |
| 843 | 'driver': 'file', |
| 844 | 'filename': target_img, |
| 845 | }) |
| 846 | |
| 847 | self.assert_no_active_block_jobs() |
| 848 | self.vm.cmd('blockdev-mirror', job_id='drive0', device='drive0', |
| 849 | sync='full', target='target') |
| 850 | self.complete_and_wait() |
| 851 | self.assert_no_active_block_jobs() |
| 852 | |
| 853 | self.vm.cmd('blockdev-del', node_name='drive0') |
| 854 | |
| 855 | self.vm.cmd('blockdev-del', node_name='target') |
| 856 | |
| 857 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 858 | 'target image does not match source after mirroring') |
| 859 | |
| 860 | class TestGranularity(iotests.QMPTestCase): |
| 861 | image_len = 10 * 1024 * 1024 # MB |
| 862 | |
| 863 | def setUp(self): |
| 864 | qemu_img('create', '-f', iotests.imgfmt, test_img, |
| 865 | str(TestGranularity.image_len)) |
| 866 | qemu_io('-c', 'write 0 %d' % (self.image_len), |
| 867 | test_img) |
| 868 | self.vm = iotests.VM().add_drive(test_img) |
| 869 | self.vm.launch() |
| 870 | |
| 871 | def tearDown(self): |
| 872 | self.vm.shutdown() |
| 873 | self.assertTrue(iotests.compare_images(test_img, target_img), |
| 874 | 'target image does not match source after mirroring') |
| 875 | os.remove(test_img) |
| 876 | os.remove(target_img) |
| 877 | |
| 878 | def test_granularity(self): |
| 879 | self.assert_no_active_block_jobs() |
| 880 | self.vm.cmd('drive-mirror', device='drive0', |
| 881 | sync='full', target=target_img, |
| 882 | mode='absolute-paths', granularity=8192) |
| 883 | |
| 884 | event = self.vm.get_qmp_event(wait=60.0) |
| 885 | while event['event'] == 'JOB_STATUS_CHANGE': |
| 886 | self.assert_qmp(event, 'data/id', 'drive0') |
| 887 | event = self.vm.get_qmp_event(wait=60.0) |
| 888 | |
| 889 | # Failures will manifest as COMPLETED/ERROR. |
| 890 | self.assert_qmp(event, 'event', 'BLOCK_JOB_READY') |
| 891 | self.complete_and_wait(drive='drive0', wait_ready=False) |
| 892 | self.assert_no_active_block_jobs() |
| 893 | |
| 894 | class TestRepairQuorum(iotests.QMPTestCase): |
| 895 | """ This class test quorum file repair using drive-mirror. |
| 896 | It's mostly a fork of TestSingleDrive """ |
| 897 | image_len = 1 * 1024 * 1024 # MB |
| 898 | IMAGES = [ quorum_img1, quorum_img2, quorum_img3 ] |
| 899 | |
| 900 | @iotests.skip_if_unsupported(['quorum']) |
| 901 | def setUp(self): |
| 902 | self.vm = iotests.VM() |
| 903 | |
| 904 | if iotests.qemu_default_machine == 'pc': |
| 905 | self.vm.add_drive(None, 'media=cdrom', 'ide') |
| 906 | |
| 907 | # Add each individual quorum images |
| 908 | for i in self.IMAGES: |
| 909 | qemu_img('create', '-f', iotests.imgfmt, i, |
| 910 | str(self.image_len)) |
| 911 | # Assign a node name to each quorum image in order to manipulate |
| 912 | # them |
| 913 | opts = "node-name=img%i" % self.IMAGES.index(i) |
| 914 | opts += ',driver=%s' % iotests.imgfmt |
| 915 | opts += ',file.driver=file' |
| 916 | opts += ',file.filename=%s' % i |
| 917 | self.vm = self.vm.add_blockdev(opts) |
| 918 | |
| 919 | self.vm.launch() |
| 920 | |
| 921 | #assemble the quorum block device from the individual files |
| 922 | args = { "driver": "quorum", "node-name": "quorum0", |
| 923 | "vote-threshold": 2, "children": [ "img0", "img1", "img2" ] } |
| 924 | self.vm.cmd("blockdev-add", args) |
| 925 | |
| 926 | |
| 927 | def tearDown(self): |
| 928 | self.vm.shutdown() |
| 929 | for i in self.IMAGES + [ quorum_repair_img, quorum_snapshot_file, |
| 930 | nbd_sock_path ]: |
| 931 | # Do a try/except because the test may have deleted some images |
| 932 | try: |
| 933 | os.remove(i) |
| 934 | except OSError: |
| 935 | pass |
| 936 | |
| 937 | def test_complete(self): |
| 938 | self.vm.cmd('drive-mirror', job_id='job0', device='quorum0', |
| 939 | sync='full', node_name="repair0", replaces="img1", |
| 940 | target=quorum_repair_img, format=iotests.imgfmt) |
| 941 | |
| 942 | self.complete_and_wait(drive="job0") |
| 943 | self.assert_has_block_node("repair0", quorum_repair_img) |
| 944 | self.vm.assert_block_path('quorum0', '/children.1', 'repair0') |
| 945 | self.vm.shutdown() |
| 946 | self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img), |
| 947 | 'target image does not match source after mirroring') |
| 948 | |
| 949 | def test_cancel(self): |
| 950 | self.vm.cmd('drive-mirror', job_id='job0', device='quorum0', |
| 951 | sync='full', node_name="repair0", replaces="img1", |
| 952 | target=quorum_repair_img, format=iotests.imgfmt) |
| 953 | |
| 954 | self.cancel_and_wait(drive="job0", force=True) |
| 955 | # here we check that the last registered quorum file has not been |
| 956 | # swapped out and unref |
| 957 | self.assert_has_block_node(None, quorum_img3) |
| 958 | |
| 959 | def test_cancel_after_ready(self): |
| 960 | self.vm.cmd('drive-mirror', job_id='job0', device='quorum0', |
| 961 | sync='full', node_name="repair0", replaces="img1", |
| 962 | target=quorum_repair_img, format=iotests.imgfmt) |
| 963 | |
| 964 | self.wait_ready_and_cancel(drive="job0") |
| 965 | # here we check that the last registered quorum file has not been |
| 966 | # swapped out and unref |
| 967 | self.assert_has_block_node(None, quorum_img3) |
| 968 | self.vm.shutdown() |
| 969 | self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img), |
| 970 | 'target image does not match source after mirroring') |
| 971 | |
| 972 | def test_pause(self): |
| 973 | self.vm.cmd('drive-mirror', job_id='job0', device='quorum0', |
| 974 | sync='full', node_name="repair0", replaces="img1", |
| 975 | target=quorum_repair_img, format=iotests.imgfmt) |
| 976 | |
| 977 | self.pause_job('job0') |
| 978 | |
| 979 | result = self.vm.qmp('query-block-jobs') |
| 980 | offset = self.dictpath(result, 'return[0]/offset') |
| 981 | |
| 982 | time.sleep(0.5) |
| 983 | result = self.vm.qmp('query-block-jobs') |
| 984 | self.assert_qmp(result, 'return[0]/offset', offset) |
| 985 | |
| 986 | self.vm.cmd('block-job-resume', device='job0') |
| 987 | |
| 988 | self.complete_and_wait(drive="job0") |
| 989 | self.vm.shutdown() |
| 990 | self.assertTrue(iotests.compare_images(quorum_img2, quorum_repair_img), |
| 991 | 'target image does not match source after mirroring') |
| 992 | |
| 993 | def test_medium_not_found(self): |
| 994 | if iotests.qemu_default_machine != 'pc': |
| 995 | return |
| 996 | |
| 997 | result = self.vm.qmp('drive-mirror', job_id='job0', device='drive0', # CD-ROM |
| 998 | sync='full', |
| 999 | node_name='repair0', |
| 1000 | replaces='img1', |
| 1001 | target=quorum_repair_img, format=iotests.imgfmt) |
| 1002 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 1003 | |
| 1004 | def test_image_not_found(self): |
| 1005 | result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', |
| 1006 | sync='full', node_name='repair0', replaces='img1', |
| 1007 | mode='existing', target=quorum_repair_img, |
| 1008 | format=iotests.imgfmt) |
| 1009 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 1010 | |
| 1011 | def test_device_not_found(self): |
| 1012 | result = self.vm.qmp('drive-mirror', job_id='job0', |
| 1013 | device='nonexistent', sync='full', |
| 1014 | node_name='repair0', |
| 1015 | replaces='img1', |
| 1016 | target=quorum_repair_img, format=iotests.imgfmt) |
| 1017 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 1018 | |
| 1019 | def test_wrong_sync_mode(self): |
| 1020 | result = self.vm.qmp('drive-mirror', device='quorum0', job_id='job0', |
| 1021 | node_name='repair0', |
| 1022 | replaces='img1', |
| 1023 | target=quorum_repair_img, format=iotests.imgfmt) |
| 1024 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 1025 | |
| 1026 | def test_no_node_name(self): |
| 1027 | result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', |
| 1028 | sync='full', replaces='img1', |
| 1029 | target=quorum_repair_img, format=iotests.imgfmt) |
| 1030 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 1031 | |
| 1032 | def test_nonexistent_replaces(self): |
| 1033 | result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', |
| 1034 | sync='full', node_name='repair0', replaces='img77', |
| 1035 | target=quorum_repair_img, format=iotests.imgfmt) |
| 1036 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 1037 | |
| 1038 | def test_after_a_quorum_snapshot(self): |
| 1039 | self.vm.cmd('blockdev-snapshot-sync', node_name='img1', |
| 1040 | snapshot_file=quorum_snapshot_file, |
| 1041 | snapshot_node_name="snap1") |
| 1042 | |
| 1043 | result = self.vm.qmp('drive-mirror', job_id='job0', device='quorum0', |
| 1044 | sync='full', node_name='repair0', replaces="img1", |
| 1045 | target=quorum_repair_img, format=iotests.imgfmt) |
| 1046 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 1047 | |
| 1048 | self.vm.cmd('drive-mirror', job_id='job0', device='quorum0', |
| 1049 | sync='full', node_name='repair0', replaces="snap1", |
| 1050 | target=quorum_repair_img, format=iotests.imgfmt) |
| 1051 | |
| 1052 | self.complete_and_wait('job0') |
| 1053 | self.assert_has_block_node("repair0", quorum_repair_img) |
| 1054 | self.vm.assert_block_path('quorum0', '/children.1', 'repair0') |
| 1055 | |
| 1056 | def test_with_other_parent(self): |
| 1057 | """ |
| 1058 | Check that we cannot replace a Quorum child when it has other |
| 1059 | parents. |
| 1060 | """ |
| 1061 | self.vm.cmd('nbd-server-start', |
| 1062 | addr={ |
| 1063 | 'type': 'unix', |
| 1064 | 'data': {'path': nbd_sock_path} |
| 1065 | }) |
| 1066 | |
| 1067 | self.vm.cmd('nbd-server-add', device='img1') |
| 1068 | |
| 1069 | result = self.vm.qmp('drive-mirror', job_id='mirror', device='quorum0', |
| 1070 | sync='full', node_name='repair0', replaces='img1', |
| 1071 | target=quorum_repair_img, format=iotests.imgfmt) |
| 1072 | self.assert_qmp(result, 'error/desc', |
| 1073 | "Cannot replace 'img1' by a node mirrored from " |
| 1074 | "'quorum0', because it cannot be guaranteed that doing " |
| 1075 | "so would not lead to an abrupt change of visible data") |
| 1076 | |
| 1077 | def test_with_other_parents_after_mirror_start(self): |
| 1078 | """ |
| 1079 | The same as test_with_other_parent(), but add the NBD server |
| 1080 | only when the mirror job is already running. |
| 1081 | """ |
| 1082 | self.vm.cmd('nbd-server-start', |
| 1083 | addr={ |
| 1084 | 'type': 'unix', |
| 1085 | 'data': {'path': nbd_sock_path} |
| 1086 | }) |
| 1087 | |
| 1088 | self.vm.cmd('drive-mirror', job_id='mirror', device='quorum0', |
| 1089 | sync='full', node_name='repair0', replaces='img1', |
| 1090 | target=quorum_repair_img, format=iotests.imgfmt) |
| 1091 | |
| 1092 | self.vm.cmd('nbd-server-add', device='img1') |
| 1093 | |
| 1094 | # The full error message goes to stderr, we will check it later |
| 1095 | self.complete_and_wait('mirror', |
| 1096 | completion_error='Operation not permitted') |
| 1097 | |
| 1098 | # Should not have been replaced |
| 1099 | self.vm.assert_block_path('quorum0', '/children.1', 'img1') |
| 1100 | |
| 1101 | # Check the full error message now |
| 1102 | self.vm.shutdown() |
| 1103 | log = iotests.filter_qtest(self.vm.get_log()) |
| 1104 | log = re.sub(r'^Formatting.*\n', '', log) |
| 1105 | log = re.sub(r'^%s: ' % os.path.basename(iotests.qemu_prog), '', log) |
| 1106 | |
| 1107 | self.assertEqual(log, |
| 1108 | "Can no longer replace 'img1' by 'repair0', because " + |
| 1109 | "it can no longer be guaranteed that doing so would " + |
| 1110 | "not lead to an abrupt change of visible data") |
| 1111 | |
| 1112 | |
| 1113 | # Test mirroring with a source that does not have any parents (not even a |
| 1114 | # BlockBackend) |
| 1115 | class TestOrphanedSource(iotests.QMPTestCase): |
| 1116 | def setUp(self): |
| 1117 | blk0 = { 'node-name': 'src', |
| 1118 | 'driver': 'null-co' } |
| 1119 | |
| 1120 | blk1 = { 'node-name': 'dest', |
| 1121 | 'driver': 'null-co' } |
| 1122 | |
| 1123 | blk2 = { 'node-name': 'dest-ro', |
| 1124 | 'driver': 'null-co', |
| 1125 | 'read-only': 'on' } |
| 1126 | |
| 1127 | self.vm = iotests.VM() |
| 1128 | self.vm.add_blockdev(self.vm.qmp_to_opts(blk0)) |
| 1129 | self.vm.add_blockdev(self.vm.qmp_to_opts(blk1)) |
| 1130 | self.vm.add_blockdev(self.vm.qmp_to_opts(blk2)) |
| 1131 | self.vm.launch() |
| 1132 | |
| 1133 | def tearDown(self): |
| 1134 | self.vm.shutdown() |
| 1135 | |
| 1136 | def test_no_job_id(self): |
| 1137 | self.assert_no_active_block_jobs() |
| 1138 | |
| 1139 | result = self.vm.qmp('blockdev-mirror', device='src', sync='full', |
| 1140 | target='dest') |
| 1141 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 1142 | |
| 1143 | def test_success(self): |
| 1144 | self.assert_no_active_block_jobs() |
| 1145 | |
| 1146 | self.vm.cmd('blockdev-mirror', job_id='job', device='src', |
| 1147 | sync='full', target='dest') |
| 1148 | |
| 1149 | self.complete_and_wait('job') |
| 1150 | |
| 1151 | def test_failing_permissions(self): |
| 1152 | self.assert_no_active_block_jobs() |
| 1153 | |
| 1154 | result = self.vm.qmp('blockdev-mirror', device='src', sync='full', |
| 1155 | target='dest-ro') |
| 1156 | self.assert_qmp(result, 'error/class', 'GenericError') |
| 1157 | |
| 1158 | def test_failing_permission_in_complete(self): |
| 1159 | self.assert_no_active_block_jobs() |
| 1160 | |
| 1161 | # Unshare consistent-read on the target |
| 1162 | # (The mirror job does not care) |
| 1163 | self.vm.cmd('blockdev-add', |
| 1164 | driver='blkdebug', |
| 1165 | node_name='dest-perm', |
| 1166 | image='dest', |
| 1167 | unshare_child_perms=['consistent-read']) |
| 1168 | |
| 1169 | self.vm.cmd('blockdev-mirror', job_id='job', device='src', |
| 1170 | sync='full', target='dest', |
| 1171 | filter_node_name='mirror-filter') |
| 1172 | |
| 1173 | # Require consistent-read on the source |
| 1174 | # (We can only add this node once the job has started, or it |
| 1175 | # will complain that it does not want to run on non-root nodes) |
| 1176 | self.vm.cmd('blockdev-add', |
| 1177 | driver='blkdebug', |
| 1178 | node_name='src-perm', |
| 1179 | image='src', |
| 1180 | take_child_perms=['consistent-read']) |
| 1181 | |
| 1182 | # While completing, mirror will attempt to replace src by |
| 1183 | # dest, which must fail because src-perm requires |
| 1184 | # consistent-read but dest-perm does not share it; thus |
| 1185 | # aborting the job when it is supposed to complete |
| 1186 | self.complete_and_wait('job', |
| 1187 | completion_error='Operation not permitted') |
| 1188 | |
| 1189 | # Assert that all of our nodes are still there (except for the |
| 1190 | # mirror filter, which should be gone despite the failure) |
| 1191 | nodes = self.vm.qmp('query-named-block-nodes')['return'] |
| 1192 | nodes = [node['node-name'] for node in nodes] |
| 1193 | |
| 1194 | for expect in ('src', 'src-perm', 'dest', 'dest-perm'): |
| 1195 | self.assertTrue(expect in nodes, '%s disappeared' % expect) |
| 1196 | self.assertFalse('mirror-filter' in nodes, |
| 1197 | 'Mirror filter node did not disappear') |
| 1198 | |
| 1199 | # Test cases for @replaces that do not necessarily involve Quorum |
| 1200 | class TestReplaces(iotests.QMPTestCase): |
| 1201 | # Each of these test cases needs their own block graph, so do not |
| 1202 | # create any nodes here |
| 1203 | def setUp(self): |
| 1204 | self.vm = iotests.VM() |
| 1205 | self.vm.launch() |
| 1206 | |
| 1207 | def tearDown(self): |
| 1208 | self.vm.shutdown() |
| 1209 | for img in (test_img, target_img): |
| 1210 | try: |
| 1211 | os.remove(img) |
| 1212 | except OSError: |
| 1213 | pass |
| 1214 | |
| 1215 | @iotests.skip_if_unsupported(['copy-on-read']) |
| 1216 | def test_replace_filter(self): |
| 1217 | """ |
| 1218 | Check that we can replace filter nodes. |
| 1219 | """ |
| 1220 | self.vm.cmd('blockdev-add', { |
| 1221 | 'driver': 'copy-on-read', |
| 1222 | 'node-name': 'filter0', |
| 1223 | 'file': { |
| 1224 | 'driver': 'copy-on-read', |
| 1225 | 'node-name': 'filter1', |
| 1226 | 'file': { |
| 1227 | 'driver': 'null-co' |
| 1228 | } |
| 1229 | } |
| 1230 | }) |
| 1231 | |
| 1232 | self.vm.cmd('blockdev-add', |
| 1233 | node_name='target', driver='null-co') |
| 1234 | |
| 1235 | self.vm.cmd('blockdev-mirror', job_id='mirror', device='filter0', |
| 1236 | target='target', sync='full', replaces='filter1') |
| 1237 | |
| 1238 | self.complete_and_wait('mirror') |
| 1239 | |
| 1240 | self.vm.assert_block_path('filter0', '/file', 'target') |
| 1241 | |
| 1242 | # Tests for mirror with filters (and how the mirror filter behaves, as |
| 1243 | # an example for an implicit filter) |
| 1244 | class TestFilters(iotests.QMPTestCase): |
| 1245 | def setUp(self): |
| 1246 | qemu_img('create', '-f', iotests.imgfmt, backing_img, '1M') |
| 1247 | qemu_img('create', '-f', iotests.imgfmt, '-b', backing_img, |
| 1248 | '-F', iotests.imgfmt, test_img) |
| 1249 | qemu_img('create', '-f', iotests.imgfmt, '-b', backing_img, |
| 1250 | '-F', iotests.imgfmt, target_img) |
| 1251 | |
| 1252 | qemu_io('-c', 'write -P 1 0 512k', backing_img) |
| 1253 | qemu_io('-c', 'write -P 2 512k 512k', test_img) |
| 1254 | |
| 1255 | self.vm = iotests.VM().add_device('virtio-scsi,id=vio-scsi') |
| 1256 | self.vm.launch() |
| 1257 | |
| 1258 | self.vm.cmd('blockdev-add', { |
| 1259 | 'node-name': 'target', |
| 1260 | 'driver': iotests.imgfmt, |
| 1261 | 'file': { |
| 1262 | 'driver': 'file', |
| 1263 | 'filename': target_img |
| 1264 | }, |
| 1265 | 'backing': None |
| 1266 | }) |
| 1267 | |
| 1268 | self.filterless_chain = { |
| 1269 | 'node-name': 'source', |
| 1270 | 'driver': iotests.imgfmt, |
| 1271 | 'file': { |
| 1272 | 'driver': 'file', |
| 1273 | 'filename': test_img |
| 1274 | }, |
| 1275 | 'backing': { |
| 1276 | 'node-name': 'backing', |
| 1277 | 'driver': iotests.imgfmt, |
| 1278 | 'file': { |
| 1279 | 'driver': 'file', |
| 1280 | 'filename': backing_img |
| 1281 | } |
| 1282 | } |
| 1283 | } |
| 1284 | |
| 1285 | def tearDown(self): |
| 1286 | self.vm.shutdown() |
| 1287 | |
| 1288 | os.remove(test_img) |
| 1289 | os.remove(target_img) |
| 1290 | os.remove(backing_img) |
| 1291 | |
| 1292 | def test_cor(self): |
| 1293 | self.vm.cmd('blockdev-add', { |
| 1294 | 'node-name': 'filter', |
| 1295 | 'driver': 'copy-on-read', |
| 1296 | 'file': self.filterless_chain |
| 1297 | }) |
| 1298 | |
| 1299 | self.vm.cmd('blockdev-mirror', |
| 1300 | job_id='mirror', |
| 1301 | device='filter', |
| 1302 | target='target', |
| 1303 | sync='top') |
| 1304 | |
| 1305 | self.complete_and_wait('mirror') |
| 1306 | |
| 1307 | self.vm.qmp('blockdev-del', node_name='target') |
| 1308 | |
| 1309 | target_map = qemu_img_map(target_img) |
| 1310 | |
| 1311 | assert target_map[0]['start'] == 0 |
| 1312 | assert target_map[0]['length'] == 512 * 1024 |
| 1313 | assert target_map[0]['depth'] == 1 |
| 1314 | |
| 1315 | assert target_map[1]['start'] == 512 * 1024 |
| 1316 | assert target_map[1]['length'] == 512 * 1024 |
| 1317 | assert target_map[1]['depth'] == 0 |
| 1318 | |
| 1319 | def test_implicit_mirror_filter(self): |
| 1320 | self.vm.cmd('blockdev-add', self.filterless_chain) |
| 1321 | |
| 1322 | # We need this so we can query from above the mirror node |
| 1323 | self.vm.cmd('device_add', |
| 1324 | driver='scsi-hd', |
| 1325 | id='virtio', |
| 1326 | bus='vio-scsi.0', |
| 1327 | drive='source') |
| 1328 | |
| 1329 | self.vm.cmd('blockdev-mirror', |
| 1330 | job_id='mirror', |
| 1331 | device='source', |
| 1332 | target='target', |
| 1333 | sync='top') |
| 1334 | |
| 1335 | # The mirror filter is now an implicit node, so it should be |
| 1336 | # invisible when querying the backing chain |
| 1337 | blockdevs = self.vm.qmp('query-block')['return'] |
| 1338 | device_info = next(dev for dev in blockdevs if dev['qdev'] == 'virtio') |
| 1339 | |
| 1340 | assert device_info['inserted']['node-name'] == 'source' |
| 1341 | |
| 1342 | image_info = device_info['inserted']['image'] |
| 1343 | assert image_info['filename'] == test_img |
| 1344 | assert image_info['backing-image']['filename'] == backing_img |
| 1345 | |
| 1346 | self.complete_and_wait('mirror') |
| 1347 | |
| 1348 | def test_explicit_mirror_filter(self): |
| 1349 | # Same test as above, but this time we give the mirror filter |
| 1350 | # a node-name so it will not be invisible |
| 1351 | self.vm.cmd('blockdev-add', self.filterless_chain) |
| 1352 | |
| 1353 | # We need this so we can query from above the mirror node |
| 1354 | self.vm.cmd('device_add', |
| 1355 | driver='scsi-hd', |
| 1356 | id='virtio', |
| 1357 | bus='vio-scsi.0', |
| 1358 | drive='source') |
| 1359 | |
| 1360 | self.vm.cmd('blockdev-mirror', |
| 1361 | job_id='mirror', |
| 1362 | device='source', |
| 1363 | target='target', |
| 1364 | sync='top', |
| 1365 | filter_node_name='mirror-filter') |
| 1366 | |
| 1367 | # With a node-name given to it, the mirror filter should now |
| 1368 | # be visible |
| 1369 | blockdevs = self.vm.qmp('query-block')['return'] |
| 1370 | device_info = next(dev for dev in blockdevs if dev['qdev'] == 'virtio') |
| 1371 | |
| 1372 | assert device_info['inserted']['node-name'] == 'mirror-filter' |
| 1373 | |
| 1374 | self.complete_and_wait('mirror') |
| 1375 | |
| 1376 | |
| 1377 | if __name__ == '__main__': |
| 1378 | iotests.main(supported_fmts=['qcow2', 'qed'], |
| 1379 | supported_protocols=['file'], |
| 1380 | supported_platforms=['linux', 'freebsd', 'netbsd', 'openbsd']) |