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authorJohn Snow <jsnow@redhat.com>2015-04-17 19:50:08 -0400
committerKevin Wolf <kwolf@redhat.com>2015-04-28 15:36:11 +0200
commit24618f5381da650bd50c78feea07b35cf82e7d6c (patch)
treecc3ba7bc9843c95e231aeb9f7a8532ba727348d1 /tests/qemu-iotests/124
parenta3d715958c4456afea402e891288864fe4e51547 (diff)
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iotests: add incremental backup failure recovery test
Test the failure case for incremental backups. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1429314609-29776-21-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'tests/qemu-iotests/124')
-rw-r--r--tests/qemu-iotests/12457
1 files changed, 57 insertions, 0 deletions
diff --git a/tests/qemu-iotests/124 b/tests/qemu-iotests/124
index 5c3b434..95f6de5 100644
--- a/tests/qemu-iotests/124
+++ b/tests/qemu-iotests/124
@@ -240,6 +240,63 @@ class TestIncrementalBackup(iotests.QMPTestCase):
self.check_backups()
+ def test_incremental_failure(self):
+ '''Test: Verify backups made after a failure are correct.
+
+ Simulate a failure during an incremental backup block job,
+ emulate additional writes, then create another incremental backup
+ afterwards and verify that the backup created is correct.
+ '''
+
+ # Create a blkdebug interface to this img as 'drive1',
+ # but don't actually create a new image.
+ drive1 = self.add_node('drive1', self.drives[0]['fmt'],
+ path=self.drives[0]['file'],
+ backup=self.drives[0]['backup'])
+ 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', {})
+
+ self.create_anchor_backup(self.drives[0])
+ self.add_bitmap('bitmap0', drive1)
+ # Note: at this point, during a normal execution,
+ # Assume that the VM resumes and begins issuing IO requests here.
+
+ self.hmp_io_writes(drive1['id'], (('0xab', 0, 512),
+ ('0xfe', '16M', '256k'),
+ ('0x64', '32736k', '64k')))
+
+ result = self.create_incremental(validate=False)
+ self.assertFalse(result)
+ self.hmp_io_writes(drive1['id'], (('0x9a', 0, 512),
+ ('0x55', '8M', '352k'),
+ ('0x78', '15872k', '1M')))
+ self.create_incremental()
+ 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)