コード例 #1
0
def test_skip_holes_during_merge_bitmaps(tmp_mount, vol_chain):
    virtual_size = MiB
    bitmap = 'bitmap'

    # Create base parent volume
    base_parent_vol = os.path.join(tmp_mount.path, 'base_parent.img')
    op = qemuimg.create(
        base_parent_vol,
        size=virtual_size,
        format=qemuimg.FORMAT.QCOW2,
        qcow2Compat='1.1'
    )
    op.run()

    # Rebase the volume chain on top of base parent volume
    op = qemuimg.rebase(
        vol_chain.base_vol, base_parent_vol, unsafe=True)
    op.run()

    # Add new bitmap to base parent volume
    op = qemuimg.bitmap_add(base_parent_vol, bitmap)
    op.run()
    # Add new bitmap to top volume, base volume is missing that
    # bitmap so there is a hole
    op = qemuimg.bitmap_add(vol_chain.top_vol, bitmap)
    op.run()

    bitmaps.merge_bitmaps(
        vol_chain.base_vol, vol_chain.top_vol,
        base_parent_path=base_parent_vol)

    info = qemuimg.info(vol_chain.base_vol)
    assert 'bitmaps' not in info
コード例 #2
0
def test_merge_only_valid_bitmaps(vol_chain):
    bitmap = 'bitmap'

    # Add new bitmap to base volume
    op = qemuimg.bitmap_add(vol_chain.base_vol, bitmap)
    op.run()

    # Add invalid bitmap to top volume
    op = qemuimg.bitmap_add(
        vol_chain.top_vol,
        'disabled',
        enable=False
    )
    op.run()

    # Add new bitmap to top volume
    op = qemuimg.bitmap_add(vol_chain.top_vol, bitmap)
    op.run()

    # merge bitmaps from top volume to base volume
    bitmaps.merge_bitmaps(vol_chain.base_vol, vol_chain.top_vol)

    info = qemuimg.info(vol_chain.base_vol)
    assert info['bitmaps'] == [
        {
            "flags": ["auto"],
            "name": bitmap,
            "granularity": 65536
        },
    ]
コード例 #3
0
ファイル: merge.py プロジェクト: vjuranek/vdsm
    def _run(self):
        self.log.info("Merging subchain %s", self.subchain)
        with guarded.context(self.subchain.locks):
            self.subchain.validate()
            with self.subchain.prepare(), self.subchain.volume_operation():
                top_vol_path = self.subchain.top_vol.getVolumePath()
                base_vol_path = self.subchain.base_vol.getVolumePath()
                self.log.info("Committing data from %s to %s", top_vol_path,
                              base_vol_path)

                self.operation = qemuimg.commit(
                    top_vol_path,
                    topFormat=sc.fmt2str(self.subchain.top_vol.getFormat()),
                    base=base_vol_path)
                self.operation.run()

                if (self.subchain.base_vol.getFormat() == sc.COW_FORMAT
                        and self.merge_bitmaps):
                    self.log.info("Merging bitmaps from %s to %s",
                                  top_vol_path, base_vol_path)
                    # Add and merge all the bitmaps from top_vol that don't
                    # exist on the base_vol and not handled by block-commit.
                    base_parent_vol = self.subchain.base_vol.getParentVolume()
                    base_parent_path = (base_parent_vol.getVolumePath()
                                        if base_parent_vol else None)
                    bitmaps.merge_bitmaps(base_vol_path,
                                          top_vol_path,
                                          base_parent_path=base_parent_path)
コード例 #4
0
ファイル: bitmaps_test.py プロジェクト: dong-df/vdsm
def test_merge_bitmaps_failed_to_add_bitmap(monkeypatch, vol_chain):
    bitmap = 'bitmap'

    # Add new bitmap to top volume
    op = qemuimg.bitmap_add(vol_chain.top_vol, bitmap)
    op.run()

    monkeypatch.setattr(qemuimg, "bitmap_add", qemuimg_failure)
    with pytest.raises(exception.AddBitmapError):
        bitmaps.merge_bitmaps(vol_chain.base_vol, vol_chain.top_vol)

    info = qemuimg.info(vol_chain.base_vol)
    assert 'bitmaps' not in info['format-specific']['data']
コード例 #5
0
def test_merge_bitmaps_failed(monkeypatch, vol_chain):
    bitmap = 'bitmap'

    # Add new bitmap to top volume
    op = qemuimg.bitmap_add(vol_chain.top_vol, bitmap)
    op.run()

    monkeypatch.setattr(qemuimg, "bitmap_merge", qemuimg_failure)
    with pytest.raises(exception.MergeBitmapError):
        bitmaps.merge_bitmaps(vol_chain.base_vol, vol_chain.top_vol)

    info = qemuimg.info(vol_chain.base_vol)
    # TODO: test that this bitmap is empty
    assert info['bitmaps'] == [
        {
            "flags": ['auto'],
            "name": bitmap,
            "granularity": 65536
        },
    ]
コード例 #6
0
def test_no_bitmaps_to_merge(vol_chain):
    # Merge bitmaps from base volume to top volume
    bitmaps.merge_bitmaps(vol_chain.base_vol, vol_chain.top_vol)

    info = qemuimg.info(vol_chain.base_vol)
    assert 'bitmaps' not in info