diff options
Diffstat (limited to 'tests/qemu-iotests/124')
| -rw-r--r-- | tests/qemu-iotests/124 | 182 |
1 files changed, 181 insertions, 1 deletions
diff --git a/tests/qemu-iotests/124 b/tests/qemu-iotests/124 index 9ccd11809f..c928f0101b 100644 --- a/tests/qemu-iotests/124 +++ b/tests/qemu-iotests/124 @@ -36,6 +36,23 @@ def try_remove(img): pass +def transaction_action(action, **kwargs): + return { + 'type': action, + 'data': dict((k.replace('_', '-'), v) for k, v in kwargs.iteritems()) + } + + +def transaction_bitmap_clear(node, name, **kwargs): + return transaction_action('block-dirty-bitmap-clear', + node=node, name=name, **kwargs) + + +def transaction_drive_backup(device, target, **kwargs): + return transaction_action('drive-backup', device=device, target=target, + **kwargs) + + class Bitmap: def __init__(self, name, drive): self.name = name @@ -122,9 +139,12 @@ class TestIncrementalBackup(iotests.QMPTestCase): def do_qmp_backup(self, error='Input/output error', **kwargs): res = self.vm.qmp('drive-backup', **kwargs) self.assert_qmp(res, 'return', {}) + return self.wait_qmp_backup(kwargs['device'], error) + + def wait_qmp_backup(self, device, error='Input/output error'): event = self.vm.event_wait(name="BLOCK_JOB_COMPLETED", - match={'data': {'device': kwargs['device']}}) + match={'data': {'device': device}}) self.assertNotEqual(event, None) try: @@ -139,6 +159,12 @@ class TestIncrementalBackup(iotests.QMPTestCase): return False + def wait_qmp_backup_cancelled(self, device): + event = self.vm.event_wait(name='BLOCK_JOB_CANCELLED', + match={'data': {'device': device}}) + self.assertNotEqual(event, None) + + def create_anchor_backup(self, drive=None): if drive is None: drive = self.drives[-1] @@ -264,6 +290,43 @@ class TestIncrementalBackup(iotests.QMPTestCase): return self.do_incremental_simple(granularity=131072) + def test_incremental_transaction(self): + '''Test: Verify backups made from transactionally created bitmaps. + + Create a bitmap "before" VM execution begins, then create a second + bitmap AFTER writes have already occurred. Use transactions to create + a full backup and synchronize both bitmaps to this backup. + Create an incremental backup through both bitmaps and verify that + both backups match the current drive0 image. + ''' + + drive0 = self.drives[0] + bitmap0 = self.add_bitmap('bitmap0', drive0) + self.hmp_io_writes(drive0['id'], (('0xab', 0, 512), + ('0xfe', '16M', '256k'), + ('0x64', '32736k', '64k'))) + bitmap1 = self.add_bitmap('bitmap1', drive0) + + result = self.vm.qmp('transaction', actions=[ + transaction_bitmap_clear(bitmap0.drive['id'], bitmap0.name), + transaction_bitmap_clear(bitmap1.drive['id'], bitmap1.name), + transaction_drive_backup(drive0['id'], drive0['backup'], + sync='full', format=drive0['fmt']) + ]) + self.assert_qmp(result, 'return', {}) + self.wait_until_completed(drive0['id']) + self.files.append(drive0['backup']) + + self.hmp_io_writes(drive0['id'], (('0x9a', 0, 512), + ('0x55', '8M', '352k'), + ('0x78', '15872k', '1M'))) + # Both bitmaps should be correctly in sync. + self.create_incremental(bitmap0) + self.create_incremental(bitmap1) + self.vm.shutdown() + self.check_backups() + + def test_incremental_failure(self): '''Test: Verify backups made after a failure are correct. @@ -321,6 +384,123 @@ class TestIncrementalBackup(iotests.QMPTestCase): self.check_backups() + def test_transaction_failure(self): + '''Test: Verify backups made from a transaction that partially fails. + + Add a second drive with its own unique pattern, and add a bitmap to each + drive. Use blkdebug to interfere with the backup on just one drive and + attempt to create a coherent incremental backup across both drives. + + verify a failure in one but not both, then delete the failed stubs and + re-run the same transaction. + + verify that both incrementals are created successfully. + ''' + + # Create a second drive, with pattern: + drive1 = self.add_node('drive1') + self.img_create(drive1['file'], drive1['fmt']) + io_write_patterns(drive1['file'], (('0x14', 0, 512), + ('0x5d', '1M', '32k'), + ('0xcd', '32M', '124k'))) + + # Create a blkdebug interface to this img as 'drive1' + result = self.vm.qmp('blockdev-add', options={ + 'id': drive1['id'], + 'driver': drive1['fmt'], + 'file': { + 'driver': 'blkdebug', + 'image': { + 'driver': 'file', + 'filename': drive1['file'] + }, + 'set-state': [{ + 'event': 'flush_to_disk', + 'state': 1, + 'new_state': 2 + }], + 'inject-error': [{ + 'event': 'read_aio', + 'errno': 5, + 'state': 2, + 'immediately': False, + 'once': True + }], + } + }) + self.assert_qmp(result, 'return', {}) + + # Create bitmaps and full backups for both drives + drive0 = self.drives[0] + dr0bm0 = self.add_bitmap('bitmap0', drive0) + dr1bm0 = self.add_bitmap('bitmap0', drive1) + self.create_anchor_backup(drive0) + self.create_anchor_backup(drive1) + self.assert_no_active_block_jobs() + self.assertFalse(self.vm.get_qmp_events(wait=False)) + + # Emulate some writes + self.hmp_io_writes(drive0['id'], (('0xab', 0, 512), + ('0xfe', '16M', '256k'), + ('0x64', '32736k', '64k'))) + self.hmp_io_writes(drive1['id'], (('0xba', 0, 512), + ('0xef', '16M', '256k'), + ('0x46', '32736k', '64k'))) + + # Create incremental backup targets + target0 = self.prepare_backup(dr0bm0) + target1 = self.prepare_backup(dr1bm0) + + # Ask for a new incremental backup per-each drive, + # expecting drive1's backup to fail: + transaction = [ + transaction_drive_backup(drive0['id'], target0, sync='incremental', + format=drive0['fmt'], mode='existing', + bitmap=dr0bm0.name), + transaction_drive_backup(drive1['id'], target1, sync='incremental', + format=drive1['fmt'], mode='existing', + bitmap=dr1bm0.name) + ] + result = self.vm.qmp('transaction', actions=transaction, + properties={'completion-mode': 'grouped'} ) + self.assert_qmp(result, 'return', {}) + + # Observe that drive0's backup is cancelled and drive1 completes with + # an error. + self.wait_qmp_backup_cancelled(drive0['id']) + self.assertFalse(self.wait_qmp_backup(drive1['id'])) + error = self.vm.event_wait('BLOCK_JOB_ERROR') + self.assert_qmp(error, 'data', {'device': drive1['id'], + 'action': 'report', + 'operation': 'read'}) + self.assertFalse(self.vm.get_qmp_events(wait=False)) + self.assert_no_active_block_jobs() + + # Delete drive0's successful target and eliminate our record of the + # unsuccessful drive1 target. Then re-run the same transaction. + dr0bm0.del_target() + dr1bm0.del_target() + target0 = self.prepare_backup(dr0bm0) + target1 = self.prepare_backup(dr1bm0) + + # Re-run the exact same transaction. + result = self.vm.qmp('transaction', actions=transaction, + properties={'completion-mode':'grouped'}) + self.assert_qmp(result, 'return', {}) + + # Both should complete successfully this time. + self.assertTrue(self.wait_qmp_backup(drive0['id'])) + self.assertTrue(self.wait_qmp_backup(drive1['id'])) + self.make_reference_backup(dr0bm0) + self.make_reference_backup(dr1bm0) + self.assertFalse(self.vm.get_qmp_events(wait=False)) + self.assert_no_active_block_jobs() + + # And the images should of course validate. + self.vm.shutdown() + self.check_backups() + + def test_sync_dirty_bitmap_missing(self): self.assert_no_active_block_jobs() self.files.append(self.err_img) |