| 1 | #!/usr/bin/env python3 |
| 2 | # group: rw |
| 3 | # |
| 4 | # Test bitmap-sync backups (incremental, differential, and partials) |
| 5 | # |
| 6 | # Copyright (c) 2019 John Snow for 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 | # owner=jsnow@redhat.com |
| 22 | |
| 23 | import math |
| 24 | import os |
| 25 | |
| 26 | import iotests |
| 27 | from iotests import log, qemu_img |
| 28 | |
| 29 | SIZE = 64 * 1024 * 1024 |
| 30 | GRANULARITY = 64 * 1024 |
| 31 | |
| 32 | |
| 33 | class Pattern: |
| 34 | def __init__(self, byte, offset, size=GRANULARITY): |
| 35 | self.byte = byte |
| 36 | self.offset = offset |
| 37 | self.size = size |
| 38 | |
| 39 | def bits(self, granularity): |
| 40 | lower = self.offset // granularity |
| 41 | upper = (self.offset + self.size - 1) // granularity |
| 42 | return set(range(lower, upper + 1)) |
| 43 | |
| 44 | |
| 45 | class PatternGroup: |
| 46 | """Grouping of Pattern objects. Initialize with an iterable of Patterns.""" |
| 47 | def __init__(self, patterns): |
| 48 | self.patterns = patterns |
| 49 | |
| 50 | def bits(self, granularity): |
| 51 | """Calculate the unique bits dirtied by this pattern grouping""" |
| 52 | res = set() |
| 53 | for pattern in self.patterns: |
| 54 | res |= pattern.bits(granularity) |
| 55 | return res |
| 56 | |
| 57 | |
| 58 | GROUPS = [ |
| 59 | PatternGroup([ |
| 60 | # Batch 0: 4 clusters |
| 61 | Pattern('0x49', 0x0000000), |
| 62 | Pattern('0x6c', 0x0100000), # 1M |
| 63 | Pattern('0x6f', 0x2000000), # 32M |
| 64 | Pattern('0x76', 0x3ff0000)]), # 64M - 64K |
| 65 | PatternGroup([ |
| 66 | # Batch 1: 6 clusters (3 new) |
| 67 | Pattern('0x65', 0x0000000), # Full overwrite |
| 68 | Pattern('0x77', 0x00f8000), # Partial-left (1M-32K) |
| 69 | Pattern('0x72', 0x2008000), # Partial-right (32M+32K) |
| 70 | Pattern('0x69', 0x3fe0000)]), # Adjacent-left (64M - 128K) |
| 71 | PatternGroup([ |
| 72 | # Batch 2: 7 clusters (3 new) |
| 73 | Pattern('0x74', 0x0010000), # Adjacent-right |
| 74 | Pattern('0x69', 0x00e8000), # Partial-left (1M-96K) |
| 75 | Pattern('0x6e', 0x2018000), # Partial-right (32M+96K) |
| 76 | Pattern('0x67', 0x3fe0000, |
| 77 | 2*GRANULARITY)]), # Overwrite [(64M-128K)-64M) |
| 78 | PatternGroup([ |
| 79 | # Batch 3: 8 clusters (5 new) |
| 80 | # Carefully chosen such that nothing re-dirties the one cluster |
| 81 | # that copies out successfully before failure in Group #1. |
| 82 | Pattern('0xaa', 0x0010000, |
| 83 | 3*GRANULARITY), # Overwrite and 2x Adjacent-right |
| 84 | Pattern('0xbb', 0x00d8000), # Partial-left (1M-160K) |
| 85 | Pattern('0xcc', 0x2028000), # Partial-right (32M+160K) |
| 86 | Pattern('0xdd', 0x3fc0000)]), # New; leaving a gap to the right |
| 87 | ] |
| 88 | |
| 89 | |
| 90 | class EmulatedBitmap: |
| 91 | def __init__(self, granularity=GRANULARITY): |
| 92 | self._bits = set() |
| 93 | self.granularity = granularity |
| 94 | |
| 95 | def dirty_bits(self, bits): |
| 96 | self._bits |= set(bits) |
| 97 | |
| 98 | def dirty_group(self, n): |
| 99 | self.dirty_bits(GROUPS[n].bits(self.granularity)) |
| 100 | |
| 101 | def clear(self): |
| 102 | self._bits = set() |
| 103 | |
| 104 | def clear_bits(self, bits): |
| 105 | self._bits -= set(bits) |
| 106 | |
| 107 | def clear_bit(self, bit): |
| 108 | self.clear_bits({bit}) |
| 109 | |
| 110 | def clear_group(self, n): |
| 111 | self.clear_bits(GROUPS[n].bits(self.granularity)) |
| 112 | |
| 113 | @property |
| 114 | def first_bit(self): |
| 115 | return sorted(self.bits)[0] |
| 116 | |
| 117 | @property |
| 118 | def bits(self): |
| 119 | return self._bits |
| 120 | |
| 121 | @property |
| 122 | def count(self): |
| 123 | return len(self.bits) |
| 124 | |
| 125 | def compare(self, qmp_bitmap): |
| 126 | """ |
| 127 | Print a nice human-readable message checking that a bitmap as reported |
| 128 | by the QMP interface has as many bits set as we expect it to. |
| 129 | """ |
| 130 | |
| 131 | name = qmp_bitmap.get('name', '(anonymous)') |
| 132 | log("= Checking Bitmap {:s} =".format(name)) |
| 133 | |
| 134 | want = self.count |
| 135 | have = qmp_bitmap['count'] // qmp_bitmap['granularity'] |
| 136 | |
| 137 | log("expecting {:d} dirty sectors; have {:d}. {:s}".format( |
| 138 | want, have, "OK!" if want == have else "ERROR!")) |
| 139 | log('') |
| 140 | |
| 141 | |
| 142 | class Drive: |
| 143 | """Represents, vaguely, a drive attached to a VM. |
| 144 | Includes format, graph, and device information.""" |
| 145 | |
| 146 | def __init__(self, path, vm=None): |
| 147 | self.path = path |
| 148 | self.vm = vm |
| 149 | self.fmt = None |
| 150 | self.size = None |
| 151 | self.node = None |
| 152 | |
| 153 | def img_create(self, fmt, size): |
| 154 | self.fmt = fmt |
| 155 | self.size = size |
| 156 | iotests.qemu_img_create('-f', self.fmt, self.path, str(self.size)) |
| 157 | |
| 158 | def create_target(self, name, fmt, size): |
| 159 | basename = os.path.basename(self.path) |
| 160 | file_node_name = "file_{}".format(basename) |
| 161 | vm = self.vm |
| 162 | |
| 163 | log(vm.cmd('blockdev-create', job_id='bdc-file-job', |
| 164 | options={ |
| 165 | 'driver': 'file', |
| 166 | 'filename': self.path, |
| 167 | 'size': 0, |
| 168 | })) |
| 169 | vm.run_job('bdc-file-job') |
| 170 | log(vm.cmd('blockdev-add', driver='file', |
| 171 | node_name=file_node_name, filename=self.path)) |
| 172 | |
| 173 | log(vm.cmd('blockdev-create', job_id='bdc-fmt-job', |
| 174 | options={ |
| 175 | 'driver': fmt, |
| 176 | 'file': file_node_name, |
| 177 | 'size': size, |
| 178 | })) |
| 179 | vm.run_job('bdc-fmt-job') |
| 180 | log(vm.cmd('blockdev-add', driver=fmt, |
| 181 | node_name=name, |
| 182 | file=file_node_name)) |
| 183 | self.fmt = fmt |
| 184 | self.size = size |
| 185 | self.node = name |
| 186 | |
| 187 | def blockdev_backup(vm, device, target, sync, **kwargs): |
| 188 | # Strip any arguments explicitly nulled by the caller: |
| 189 | kwargs = {key: val for key, val in kwargs.items() if val is not None} |
| 190 | result = vm.qmp_log('blockdev-backup', |
| 191 | device=device, |
| 192 | target=target, |
| 193 | sync=sync, |
| 194 | filter_node_name='backup-top', |
| 195 | x_perf={'max-workers': 1}, |
| 196 | **kwargs) |
| 197 | return result |
| 198 | |
| 199 | def blockdev_backup_mktarget(drive, target_id, filepath, sync, **kwargs): |
| 200 | target_drive = Drive(filepath, vm=drive.vm) |
| 201 | target_drive.create_target(target_id, drive.fmt, drive.size) |
| 202 | blockdev_backup(drive.vm, drive.node, target_id, sync, **kwargs) |
| 203 | |
| 204 | def reference_backup(drive, n, filepath): |
| 205 | log("--- Reference Backup #{:d} ---\n".format(n)) |
| 206 | target_id = "ref_target_{:d}".format(n) |
| 207 | job_id = "ref_backup_{:d}".format(n) |
| 208 | blockdev_backup_mktarget(drive, target_id, filepath, "full", |
| 209 | job_id=job_id) |
| 210 | drive.vm.run_job(job_id, auto_dismiss=True) |
| 211 | log('') |
| 212 | |
| 213 | def backup(drive, n, filepath, sync, **kwargs): |
| 214 | log("--- Test Backup #{:d} ---\n".format(n)) |
| 215 | target_id = "backup_target_{:d}".format(n) |
| 216 | job_id = "backup_{:d}".format(n) |
| 217 | kwargs.setdefault('auto-finalize', False) |
| 218 | blockdev_backup_mktarget(drive, target_id, filepath, sync, |
| 219 | job_id=job_id, **kwargs) |
| 220 | return job_id |
| 221 | |
| 222 | def perform_writes(drive, n, filter_node_name=None): |
| 223 | log("--- Write #{:d} ---\n".format(n)) |
| 224 | for pattern in GROUPS[n].patterns: |
| 225 | cmd = "write -P{:s} 0x{:07x} 0x{:x}".format( |
| 226 | pattern.byte, |
| 227 | pattern.offset, |
| 228 | pattern.size) |
| 229 | log(cmd) |
| 230 | log(drive.vm.hmp_qemu_io(filter_node_name or drive.node, cmd)) |
| 231 | bitmaps = drive.vm.query_bitmaps() |
| 232 | log({'bitmaps': bitmaps}, indent=2) |
| 233 | log('') |
| 234 | return bitmaps |
| 235 | |
| 236 | |
| 237 | def compare_images(image, reference, baseimg=None, expected_match=True): |
| 238 | """ |
| 239 | Print a nice human-readable message comparing these images. |
| 240 | """ |
| 241 | expected_ret = 0 if expected_match else 1 |
| 242 | if baseimg: |
| 243 | qemu_img("rebase", "-u", "-b", baseimg, '-F', iotests.imgfmt, image) |
| 244 | |
| 245 | sub = qemu_img("compare", image, reference, check=False) |
| 246 | |
| 247 | log('qemu_img compare "{:s}" "{:s}" ==> {:s}, {:s}'.format( |
| 248 | image, reference, |
| 249 | "Identical" if sub.returncode == 0 else "Mismatch", |
| 250 | "OK!" if sub.returncode == expected_ret else "ERROR!"), |
| 251 | filters=[iotests.filter_testfiles]) |
| 252 | |
| 253 | def test_bitmap_sync(bsync_mode, msync_mode='bitmap', failure=None): |
| 254 | """ |
| 255 | Test bitmap backup routines. |
| 256 | |
| 257 | :param bsync_mode: Is the Bitmap Sync mode, and can be any of: |
| 258 | - on-success: This is the "incremental" style mode. Bitmaps are |
| 259 | synchronized to what was copied out only on success. |
| 260 | (Partial images must be discarded.) |
| 261 | - never: This is the "differential" style mode. |
| 262 | Bitmaps are never synchronized. |
| 263 | - always: This is a "best effort" style mode. |
| 264 | Bitmaps are always synchronized, regardless of failure. |
| 265 | (Partial images must be kept.) |
| 266 | |
| 267 | :param msync_mode: The mirror sync mode to use for the first backup. |
| 268 | Can be any one of: |
| 269 | - bitmap: Backups based on bitmap manifest. |
| 270 | - full: Full backups. |
| 271 | - top: Full backups of the top layer only. |
| 272 | |
| 273 | :param failure: Is the (optional) failure mode, and can be any of: |
| 274 | - None: No failure. Test the normative path. Default. |
| 275 | - simulated: Cancel the job right before it completes. |
| 276 | This also tests writes "during" the job. |
| 277 | - intermediate: This tests a job that fails mid-process and produces |
| 278 | an incomplete backup. Testing limitations prevent |
| 279 | testing competing writes. |
| 280 | """ |
| 281 | with iotests.FilePath( |
| 282 | 'img', 'bsync1', 'bsync2', 'fbackup0', 'fbackup1', 'fbackup2') as \ |
| 283 | (img_path, bsync1, bsync2, fbackup0, fbackup1, fbackup2), \ |
| 284 | iotests.VM() as vm: |
| 285 | |
| 286 | mode = "Mode {:s}; Bitmap Sync {:s}".format(msync_mode, bsync_mode) |
| 287 | preposition = "with" if failure else "without" |
| 288 | cond = "{:s} {:s}".format(preposition, |
| 289 | "{:s} failure".format(failure) if failure |
| 290 | else "failure") |
| 291 | log("\n=== {:s} {:s} ===\n".format(mode, cond)) |
| 292 | |
| 293 | log('--- Preparing image & VM ---\n') |
| 294 | drive0 = Drive(img_path, vm=vm) |
| 295 | drive0.img_create(iotests.imgfmt, SIZE) |
| 296 | vm.add_device("{},id=scsi0".format('virtio-scsi')) |
| 297 | vm.launch() |
| 298 | |
| 299 | file_config = { |
| 300 | 'driver': 'file', |
| 301 | 'filename': drive0.path |
| 302 | } |
| 303 | |
| 304 | if failure == 'intermediate': |
| 305 | file_config = { |
| 306 | 'driver': 'blkdebug', |
| 307 | 'image': file_config, |
| 308 | 'set-state': [{ |
| 309 | 'event': 'flush_to_disk', |
| 310 | 'state': 1, |
| 311 | 'new_state': 2 |
| 312 | }, { |
| 313 | 'event': 'flush_to_disk', |
| 314 | 'state': 2, |
| 315 | 'new_state': 3 |
| 316 | }, { |
| 317 | 'event': "read_aio", |
| 318 | 'state': 3, |
| 319 | 'new_state': 4 |
| 320 | }], |
| 321 | 'inject-error': [{ |
| 322 | 'event': 'read_aio', |
| 323 | 'errno': 5, |
| 324 | 'state': 4, |
| 325 | 'immediately': False, |
| 326 | 'once': True |
| 327 | }] |
| 328 | } |
| 329 | |
| 330 | drive0.node = 'drive0' |
| 331 | vm.qmp_log('blockdev-add', |
| 332 | filters=[iotests.filter_qmp_testfiles], |
| 333 | node_name=drive0.node, |
| 334 | driver=drive0.fmt, |
| 335 | file=file_config) |
| 336 | log('') |
| 337 | |
| 338 | # 0 - Writes and Reference Backup |
| 339 | perform_writes(drive0, 0) |
| 340 | reference_backup(drive0, 0, fbackup0) |
| 341 | log('--- Add Bitmap ---\n') |
| 342 | vm.qmp_log("block-dirty-bitmap-add", node=drive0.node, |
| 343 | name="bitmap0", granularity=GRANULARITY) |
| 344 | log('') |
| 345 | ebitmap = EmulatedBitmap() |
| 346 | |
| 347 | # 1 - Writes and Reference Backup |
| 348 | bitmaps = perform_writes(drive0, 1) |
| 349 | ebitmap.dirty_group(1) |
| 350 | bitmap = vm.get_bitmap(drive0.node, 'bitmap0', bitmaps=bitmaps) |
| 351 | ebitmap.compare(bitmap) |
| 352 | reference_backup(drive0, 1, fbackup1) |
| 353 | |
| 354 | # 1 - Test Backup (w/ Optional induced failure) |
| 355 | if failure == 'intermediate': |
| 356 | # Activate blkdebug induced failure for second-to-next read |
| 357 | log(vm.hmp_qemu_io(drive0.node, 'flush')) |
| 358 | log('') |
| 359 | job = backup(drive0, 1, bsync1, msync_mode, |
| 360 | bitmap="bitmap0", bitmap_mode=bsync_mode) |
| 361 | |
| 362 | def _callback(): |
| 363 | """Issue writes while the job is open to test bitmap divergence.""" |
| 364 | # Note: when `failure` is 'intermediate', this isn't called. |
| 365 | log('') |
| 366 | bitmaps = perform_writes(drive0, 2, filter_node_name='backup-top') |
| 367 | # Named bitmap (static, should be unchanged) |
| 368 | ebitmap.compare(vm.get_bitmap(drive0.node, 'bitmap0', |
| 369 | bitmaps=bitmaps)) |
| 370 | # Anonymous bitmap (dynamic, shows new writes) |
| 371 | anonymous = EmulatedBitmap() |
| 372 | anonymous.dirty_group(2) |
| 373 | anonymous.compare(vm.get_bitmap(drive0.node, '', recording=True, |
| 374 | bitmaps=bitmaps)) |
| 375 | |
| 376 | # Simulate the order in which this will happen: |
| 377 | # group 1 gets cleared first, then group two gets written. |
| 378 | if ((bsync_mode == 'on-success' and not failure) or |
| 379 | (bsync_mode == 'always')): |
| 380 | ebitmap.clear() |
| 381 | ebitmap.dirty_group(2) |
| 382 | |
| 383 | vm.run_job(job, auto_dismiss=True, auto_finalize=False, |
| 384 | pre_finalize=_callback, |
| 385 | cancel=(failure == 'simulated')) |
| 386 | bitmaps = vm.query_bitmaps() |
| 387 | log({'bitmaps': bitmaps}, indent=2) |
| 388 | log('') |
| 389 | |
| 390 | if bsync_mode == 'always' and failure == 'intermediate': |
| 391 | # TOP treats anything allocated as dirty, expect to see: |
| 392 | if msync_mode == 'top': |
| 393 | ebitmap.dirty_group(0) |
| 394 | |
| 395 | # We manage to copy one sector (one bit) before the error. |
| 396 | ebitmap.clear_bit(ebitmap.first_bit) |
| 397 | |
| 398 | # Full returns all bits set except what was copied/skipped |
| 399 | if msync_mode == 'full': |
| 400 | fail_bit = ebitmap.first_bit |
| 401 | ebitmap.clear() |
| 402 | ebitmap.dirty_bits(range(fail_bit, SIZE // GRANULARITY)) |
| 403 | |
| 404 | ebitmap.compare(vm.get_bitmap(drive0.node, 'bitmap0', bitmaps=bitmaps)) |
| 405 | |
| 406 | # 2 - Writes and Reference Backup |
| 407 | bitmaps = perform_writes(drive0, 3) |
| 408 | ebitmap.dirty_group(3) |
| 409 | ebitmap.compare(vm.get_bitmap(drive0.node, 'bitmap0', bitmaps=bitmaps)) |
| 410 | reference_backup(drive0, 2, fbackup2) |
| 411 | |
| 412 | # 2 - Bitmap Backup (In failure modes, this is a recovery.) |
| 413 | job = backup(drive0, 2, bsync2, "bitmap", |
| 414 | bitmap="bitmap0", bitmap_mode=bsync_mode) |
| 415 | vm.run_job(job, auto_dismiss=True, auto_finalize=False) |
| 416 | bitmaps = vm.query_bitmaps() |
| 417 | log({'bitmaps': bitmaps}, indent=2) |
| 418 | log('') |
| 419 | if bsync_mode != 'never': |
| 420 | ebitmap.clear() |
| 421 | ebitmap.compare(vm.get_bitmap(drive0.node, 'bitmap0', bitmaps=bitmaps)) |
| 422 | |
| 423 | log('--- Cleanup ---\n') |
| 424 | vm.qmp_log("block-dirty-bitmap-remove", |
| 425 | node=drive0.node, name="bitmap0") |
| 426 | bitmaps = vm.query_bitmaps() |
| 427 | log({'bitmaps': bitmaps}, indent=2) |
| 428 | vm.shutdown() |
| 429 | log('') |
| 430 | |
| 431 | log('--- Verification ---\n') |
| 432 | # 'simulated' failures will actually all pass here because we canceled |
| 433 | # while "pending". This is actually undefined behavior, |
| 434 | # don't rely on this to be true! |
| 435 | compare_images(bsync1, fbackup1, baseimg=fbackup0, |
| 436 | expected_match=failure != 'intermediate') |
| 437 | if not failure or bsync_mode == 'always': |
| 438 | # Always keep the last backup on success or when using 'always' |
| 439 | base = bsync1 |
| 440 | else: |
| 441 | base = fbackup0 |
| 442 | compare_images(bsync2, fbackup2, baseimg=base) |
| 443 | compare_images(img_path, fbackup2) |
| 444 | log('') |
| 445 | |
| 446 | def test_backup_api(): |
| 447 | """ |
| 448 | Test malformed and prohibited invocations of the backup API. |
| 449 | """ |
| 450 | with iotests.FilePath('img', 'bsync1') as (img_path, backup_path), \ |
| 451 | iotests.VM() as vm: |
| 452 | |
| 453 | log("\n=== API failure tests ===\n") |
| 454 | log('--- Preparing image & VM ---\n') |
| 455 | drive0 = Drive(img_path, vm=vm) |
| 456 | drive0.img_create(iotests.imgfmt, SIZE) |
| 457 | vm.add_device("{},id=scsi0".format('virtio-scsi')) |
| 458 | vm.launch() |
| 459 | |
| 460 | file_config = { |
| 461 | 'driver': 'file', |
| 462 | 'filename': drive0.path |
| 463 | } |
| 464 | |
| 465 | drive0.node = 'drive0' |
| 466 | vm.qmp_log('blockdev-add', |
| 467 | filters=[iotests.filter_qmp_testfiles], |
| 468 | node_name=drive0.node, |
| 469 | driver=drive0.fmt, |
| 470 | file=file_config) |
| 471 | log('') |
| 472 | |
| 473 | target0 = Drive(backup_path, vm=vm) |
| 474 | target0.create_target("backup_target", drive0.fmt, drive0.size) |
| 475 | log('') |
| 476 | |
| 477 | vm.qmp_log("block-dirty-bitmap-add", node=drive0.node, |
| 478 | name="bitmap0", granularity=GRANULARITY) |
| 479 | log('') |
| 480 | |
| 481 | log('-- Testing invalid QMP commands --\n') |
| 482 | |
| 483 | error_cases = { |
| 484 | 'incremental': { |
| 485 | None: ['on-success', 'always', 'never', None], |
| 486 | 'bitmap404': ['on-success', 'always', 'never', None], |
| 487 | 'bitmap0': ['always', 'never'] |
| 488 | }, |
| 489 | 'bitmap': { |
| 490 | None: ['on-success', 'always', 'never', None], |
| 491 | 'bitmap404': ['on-success', 'always', 'never', None], |
| 492 | 'bitmap0': [None], |
| 493 | }, |
| 494 | 'full': { |
| 495 | None: ['on-success', 'always', 'never'], |
| 496 | 'bitmap404': ['on-success', 'always', 'never', None], |
| 497 | 'bitmap0': ['never', None], |
| 498 | }, |
| 499 | 'top': { |
| 500 | None: ['on-success', 'always', 'never'], |
| 501 | 'bitmap404': ['on-success', 'always', 'never', None], |
| 502 | 'bitmap0': ['never', None], |
| 503 | }, |
| 504 | 'none': { |
| 505 | None: ['on-success', 'always', 'never'], |
| 506 | 'bitmap404': ['on-success', 'always', 'never', None], |
| 507 | 'bitmap0': ['on-success', 'always', 'never', None], |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | # Dicts, as always, are not stably-ordered prior to 3.7, so use tuples: |
| 512 | for sync_mode in ('incremental', 'bitmap', 'full', 'top', 'none'): |
| 513 | log("-- Sync mode {:s} tests --\n".format(sync_mode)) |
| 514 | for bitmap in (None, 'bitmap404', 'bitmap0'): |
| 515 | for policy in error_cases[sync_mode][bitmap]: |
| 516 | blockdev_backup(drive0.vm, drive0.node, "backup_target", |
| 517 | sync_mode, job_id='api_job', |
| 518 | bitmap=bitmap, bitmap_mode=policy) |
| 519 | log('') |
| 520 | |
| 521 | |
| 522 | def main(): |
| 523 | for bsync_mode in ("never", "on-success", "always"): |
| 524 | for failure in ("simulated", "intermediate", None): |
| 525 | test_bitmap_sync(bsync_mode, "bitmap", failure) |
| 526 | |
| 527 | for sync_mode in ('full', 'top'): |
| 528 | for bsync_mode in ('on-success', 'always'): |
| 529 | for failure in ('simulated', 'intermediate', None): |
| 530 | test_bitmap_sync(bsync_mode, sync_mode, failure) |
| 531 | |
| 532 | test_backup_api() |
| 533 | |
| 534 | if __name__ == '__main__': |
| 535 | iotests.script_main(main, supported_fmts=['qcow2'], |
| 536 | supported_protocols=['file'], |
| 537 | require_hmp=True) |