def test_copy(self):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
self.image.copy(ioctx, IMG_NAME + "2")
assert_raises(ImageExists, self.image.copy, ioctx, IMG_NAME + "2")
copy = Image(ioctx, IMG_NAME + "2")
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, IMG_NAME + "2")
eq(data, copy_data)
def test_copy(self):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
bytes_copied = self.image.copy(ioctx, IMG_NAME + '2')
copy = Image(ioctx, IMG_NAME + '2')
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, IMG_NAME + '2')
eq(bytes_copied, IMG_SIZE)
eq(data, copy_data)
def test_copy(self):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
image_name = get_temp_image_name()
self.image.copy(ioctx, image_name)
assert_raises(ImageExists, self.image.copy, ioctx, image_name)
copy = Image(ioctx, image_name)
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, image_name)
eq(data, copy_data)
def test_create_snap(self):
global ioctx
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
at_snapshot = Image(ioctx, IMG_NAME, 'snap1')
snap_data = at_snapshot.read(0, 256)
at_snapshot.close()
eq(snap_data, '\0' * 256)
def setUp(self):
global ioctx
global features
self.rbd = RBD()
create_image()
self.image = Image(ioctx, IMG_NAME)
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2)
self.image.create_snap("snap1")
global features
self.image.protect_snap("snap1")
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone", features)
self.clone = Image(ioctx, "clone")
def setUp(self):
global ioctx
global features
self.rbd = RBD()
create_image()
self.image = Image(ioctx, image_name)
data = rand_data(256)
self.image.write(data, IMG_SIZE // 2)
self.image.create_snap("snap1")
global features
self.image.protect_snap("snap1")
self.clone_name = get_temp_image_name()
self.rbd.clone(ioctx, image_name, "snap1", ioctx, self.clone_name, features)
self.clone = Image(ioctx, self.clone_name)
def test_create_snap(self):
global ioctx
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
at_snapshot = Image(ioctx, IMG_NAME, "snap1")
snap_data = at_snapshot.read(0, 256)
at_snapshot.close()
eq(snap_data, "\0" * 256)
self.image.remove_snap("snap1")
def delete_image(ioctx, img_name):
image = Image(ioctx, img_name)
for snap in image.list_snaps():
snap_name = snap['name']
print("removing snapshot: %s@%s" % (img_name, snap_name))
if image.is_protected_snap(snap_name):
image.unprotect_snap(snap_name)
image.remove_snap(snap_name)
image.close()
print("removing image: %s" % img_name)
RBD().remove(ioctx, img_name)
def test_list_children(self):
global ioctx
global features
self.image.set_snap('snap1')
self.check_children([(pool_name, self.clone_name)])
self.clone.close()
self.rbd.remove(ioctx, self.clone_name)
eq(self.image.list_children(), [])
clone_name = get_temp_image_name() + '_'
expected_children = []
for i in xrange(10):
self.rbd.clone(ioctx, image_name, 'snap1', ioctx,
clone_name + str(i), features)
expected_children.append((pool_name, clone_name + str(i)))
self.check_children(expected_children)
for i in xrange(10):
self.rbd.remove(ioctx, clone_name + str(i))
expected_children.pop(0)
self.check_children(expected_children)
eq(self.image.list_children(), [])
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, self.clone_name,
features)
self.check_children([(pool_name, self.clone_name)])
self.clone = Image(ioctx, self.clone_name)
def _test_copy(self, features=None, order=None, stripe_unit=None, stripe_count=None):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
image_name = get_temp_image_name()
if features is None:
self.image.copy(ioctx, image_name)
elif order is None:
self.image.copy(ioctx, image_name, features)
elif stripe_unit is None:
self.image.copy(ioctx, image_name, features, order)
elif stripe_count is None:
self.image.copy(ioctx, image_name, features, order, stripe_unit)
else:
self.image.copy(ioctx, image_name, features, order, stripe_unit, stripe_count)
assert_raises(ImageExists, self.image.copy, ioctx, image_name)
copy = Image(ioctx, image_name)
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, image_name)
eq(data, copy_data)
def check_flatten_with_order(self, new_order):
global ioctx
global features
clone_name2 = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, new_order)
#with Image(ioctx, 'clone2') as clone:
clone2 = Image(ioctx, clone_name2)
clone2.flatten()
eq(clone2.overlap(), 0)
clone2.close()
self.rbd.remove(ioctx, clone_name2)
# flatten after resizing to non-block size
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, new_order)
with Image(ioctx, clone_name2) as clone:
clone.resize(IMG_SIZE / 2 - 1)
clone.flatten()
eq(0, clone.overlap())
self.rbd.remove(ioctx, clone_name2)
# flatten after resizing to non-block size
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, new_order)
with Image(ioctx, clone_name2) as clone:
clone.resize(IMG_SIZE / 2 + 1)
clone.flatten()
eq(clone.overlap(), 0)
self.rbd.remove(ioctx, clone_name2)
def check_flatten_with_order(self, new_order):
global ioctx
global features
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone2", features, new_order)
# with Image(ioctx, 'clone2') as clone:
clone2 = Image(ioctx, "clone2")
clone2.flatten()
eq(clone2.overlap(), 0)
clone2.close()
self.rbd.remove(ioctx, "clone2")
# flatten after resizing to non-block size
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone2", features, new_order)
with Image(ioctx, "clone2") as clone:
clone.resize(IMG_SIZE / 2 - 1)
clone.flatten()
eq(0, clone.overlap())
self.rbd.remove(ioctx, "clone2")
# flatten after resizing to non-block size
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone2", features, new_order)
with Image(ioctx, "clone2") as clone:
clone.resize(IMG_SIZE / 2 + 1)
clone.flatten()
eq(clone.overlap(), 0)
self.rbd.remove(ioctx, "clone2")
def test_create_with_params(self):
global features
image_name = get_temp_image_name()
order = 20
stripe_unit = 1 << 20
stripe_count = 10
self.rbd.create(ioctx, image_name, IMG_SIZE, order, False, features, stripe_unit, stripe_count)
image = Image(ioctx, image_name)
info = image.stat()
check_stat(info, IMG_SIZE, order)
eq(image.features(), features)
eq(image.stripe_unit(), stripe_unit)
eq(image.stripe_count(), stripe_count)
image.close()
RBD().remove(ioctx, image_name)
def test_unprotect_with_children(self):
global features
# can't remove a snapshot that has dependent clones
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
# validate parent info of clone created by TestClone.setUp
(pool, image, snap) = self.clone.parent_info()
eq(pool, pool_name)
eq(image, image_name)
eq(snap, 'snap1')
# create a new pool...
pool_name2 = get_temp_pool_name()
rados.create_pool(pool_name2)
other_ioctx = rados.open_ioctx(pool_name2)
# ...with a clone of the same parent
other_clone_name = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap1', other_ioctx,
other_clone_name, features)
self.other_clone = Image(other_ioctx, other_clone_name)
# validate its parent info
(pool, image, snap) = self.other_clone.parent_info()
eq(pool, pool_name)
eq(image, image_name)
eq(snap, 'snap1')
# can't unprotect snap with children
assert_raises(ImageBusy, self.image.unprotect_snap, 'snap1')
# 2 children, check that cannot remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
# close and remove other pool's clone
self.other_clone.close()
self.rbd.remove(other_ioctx, other_clone_name)
# check that we cannot yet remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
other_ioctx.close()
rados.delete_pool(pool_name2)
def test_unprotect_with_children(self):
global features
# can't remove a snapshot that has dependent clones
assert_raises(ImageBusy, self.image.remove_snap, "snap1")
# validate parent info of clone created by TestClone.setUp
(pool, image, snap) = self.clone.parent_info()
eq(pool, "rbd")
eq(image, IMG_NAME)
eq(snap, "snap1")
# create a new pool...
rados.create_pool("rbd2")
other_ioctx = rados.open_ioctx("rbd2")
# ...with a clone of the same parent
self.rbd.clone(ioctx, IMG_NAME, "snap1", other_ioctx, "other_clone", features)
self.other_clone = Image(other_ioctx, "other_clone")
# validate its parent info
(pool, image, snap) = self.other_clone.parent_info()
eq(pool, "rbd")
eq(image, IMG_NAME)
eq(snap, "snap1")
# can't unprotect snap with children
assert_raises(ImageBusy, self.image.unprotect_snap, "snap1")
# 2 children, check that cannot remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, "snap1")
# close and remove other pool's clone
self.other_clone.close()
self.rbd.remove(other_ioctx, "other_clone")
# check that we cannot yet remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, "snap1")
other_ioctx.close()
rados.delete_pool("rbd2")
def test_list_children(self):
global ioctx
global features
self.image.set_snap('snap1')
eq(self.image.list_children(), [('rbd', 'clone')])
self.clone.close()
self.rbd.remove(ioctx, 'clone')
eq(self.image.list_children(), [])
expected_children = []
for i in xrange(10):
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone%d' % i, features)
expected_children.append(('rbd', 'clone%d' % i))
eq(self.image.list_children(), expected_children)
for i in xrange(10):
self.rbd.remove(ioctx, 'clone%d' % i)
expected_children.pop(0)
eq(self.image.list_children(), expected_children)
eq(self.image.list_children(), [])
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone', features)
eq(self.image.list_children(), [('rbd', 'clone')])
self.clone = Image(ioctx, 'clone')
def test_list_children(self):
global ioctx
global features
self.image.set_snap("snap1")
eq(self.image.list_children(), [("rbd", "clone")])
self.clone.close()
self.rbd.remove(ioctx, "clone")
eq(self.image.list_children(), [])
expected_children = []
for i in xrange(10):
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone%d" % i, features)
expected_children.append(("rbd", "clone%d" % i))
eq(self.image.list_children(), expected_children)
for i in xrange(10):
self.rbd.remove(ioctx, "clone%d" % i)
expected_children.pop(0)
eq(self.image.list_children(), expected_children)
eq(self.image.list_children(), [])
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone", features)
eq(self.image.list_children(), [("rbd", "clone")])
self.clone = Image(ioctx, "clone")
class TestClone(object):
@require_features([RBD_FEATURE_LAYERING])
def setUp(self):
global ioctx
global features
self.rbd = RBD()
create_image()
self.image = Image(ioctx, image_name)
data = rand_data(256)
self.image.write(data, IMG_SIZE // 2)
self.image.create_snap('snap1')
global features
self.image.protect_snap('snap1')
self.clone_name = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, self.clone_name,
features)
self.clone = Image(ioctx, self.clone_name)
def tearDown(self):
global ioctx
self.clone.close()
self.rbd.remove(ioctx, self.clone_name)
self.image.unprotect_snap('snap1')
self.image.remove_snap('snap1')
self.image.close()
remove_image()
@require_features([RBD_FEATURE_STRIPINGV2])
def test_with_params(self):
global features
self.image.create_snap('snap2')
self.image.protect_snap('snap2')
clone_name2 = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap2', ioctx, clone_name2,
features, self.image.stat()['order'],
self.image.stripe_unit(), self.image.stripe_count())
self.rbd.remove(ioctx, clone_name2)
self.image.unprotect_snap('snap2')
self.image.remove_snap('snap2')
def test_unprotected(self):
self.image.create_snap('snap2')
global features
clone_name2 = get_temp_image_name()
assert_raises(InvalidArgument, self.rbd.clone, ioctx, image_name,
'snap2', ioctx, clone_name2, features)
self.image.remove_snap('snap2')
def test_unprotect_with_children(self):
global features
# can't remove a snapshot that has dependent clones
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
# validate parent info of clone created by TestClone.setUp
(pool, image, snap) = self.clone.parent_info()
eq(pool, pool_name)
eq(image, image_name)
eq(snap, 'snap1')
# create a new pool...
pool_name2 = get_temp_pool_name()
rados.create_pool(pool_name2)
other_ioctx = rados.open_ioctx(pool_name2)
# ...with a clone of the same parent
other_clone_name = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap1', other_ioctx,
other_clone_name, features)
self.other_clone = Image(other_ioctx, other_clone_name)
# validate its parent info
(pool, image, snap) = self.other_clone.parent_info()
eq(pool, pool_name)
eq(image, image_name)
eq(snap, 'snap1')
# can't unprotect snap with children
assert_raises(ImageBusy, self.image.unprotect_snap, 'snap1')
# 2 children, check that cannot remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
# close and remove other pool's clone
self.other_clone.close()
self.rbd.remove(other_ioctx, other_clone_name)
# check that we cannot yet remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
other_ioctx.close()
rados.delete_pool(pool_name2)
# unprotect, remove parent snap happen in cleanup, and should succeed
def test_stat(self):
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], image_info['size'])
eq(clone_info['size'], self.clone.overlap())
def test_resize_stat(self):
self.clone.resize(IMG_SIZE // 2)
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], IMG_SIZE // 2)
eq(image_info['size'], IMG_SIZE)
eq(self.clone.overlap(), IMG_SIZE // 2)
self.clone.resize(IMG_SIZE * 2)
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], IMG_SIZE * 2)
eq(image_info['size'], IMG_SIZE)
eq(self.clone.overlap(), IMG_SIZE // 2)
def test_resize_io(self):
parent_data = self.image.read(IMG_SIZE // 2, 256)
self.image.resize(0)
self.clone.resize(IMG_SIZE // 2 + 128)
child_data = self.clone.read(IMG_SIZE // 2, 128)
eq(child_data, parent_data[:128])
self.clone.resize(IMG_SIZE)
child_data = self.clone.read(IMG_SIZE // 2, 256)
eq(child_data, parent_data[:128] + (b'\0' * 128))
self.clone.resize(IMG_SIZE // 2 + 1)
child_data = self.clone.read(IMG_SIZE // 2, 1)
eq(child_data, parent_data[0:1])
self.clone.resize(0)
self.clone.resize(IMG_SIZE)
child_data = self.clone.read(IMG_SIZE // 2, 256)
eq(child_data, b'\0' * 256)
def test_read(self):
parent_data = self.image.read(IMG_SIZE // 2, 256)
child_data = self.clone.read(IMG_SIZE // 2, 256)
eq(child_data, parent_data)
def test_write(self):
parent_data = self.image.read(IMG_SIZE // 2, 256)
new_data = rand_data(256)
self.clone.write(new_data, IMG_SIZE // 2 + 256)
child_data = self.clone.read(IMG_SIZE // 2 + 256, 256)
eq(child_data, new_data)
child_data = self.clone.read(IMG_SIZE // 2, 256)
eq(child_data, parent_data)
parent_data = self.image.read(IMG_SIZE // 2 + 256, 256)
eq(parent_data, b'\0' * 256)
def check_children(self, expected):
actual = self.image.list_children()
# dedup for cache pools until
# http://tracker.ceph.com/issues/8187 is fixed
deduped = set([(pool_name, image[1]) for image in actual])
eq(deduped, set(expected))
def test_list_children(self):
global ioctx
global features
self.image.set_snap('snap1')
self.check_children([(pool_name, self.clone_name)])
self.clone.close()
self.rbd.remove(ioctx, self.clone_name)
eq(self.image.list_children(), [])
clone_name = get_temp_image_name() + '_'
expected_children = []
for i in range(10):
self.rbd.clone(ioctx, image_name, 'snap1', ioctx,
clone_name + str(i), features)
expected_children.append((pool_name, clone_name + str(i)))
self.check_children(expected_children)
for i in range(10):
self.rbd.remove(ioctx, clone_name + str(i))
expected_children.pop(0)
self.check_children(expected_children)
eq(self.image.list_children(), [])
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, self.clone_name,
features)
self.check_children([(pool_name, self.clone_name)])
self.clone = Image(ioctx, self.clone_name)
def test_flatten_errors(self):
# test that we can't flatten a non-clone
assert_raises(InvalidArgument, self.image.flatten)
# test that we can't flatten a snapshot
self.clone.create_snap('snap2')
self.clone.set_snap('snap2')
assert_raises(ReadOnlyImage, self.clone.flatten)
self.clone.remove_snap('snap2')
def check_flatten_with_order(self, new_order):
global ioctx
global features
clone_name2 = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, new_order)
#with Image(ioctx, 'clone2') as clone:
clone2 = Image(ioctx, clone_name2)
clone2.flatten()
eq(clone2.overlap(), 0)
clone2.close()
self.rbd.remove(ioctx, clone_name2)
# flatten after resizing to non-block size
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, new_order)
with Image(ioctx, clone_name2) as clone:
clone.resize(IMG_SIZE // 2 - 1)
clone.flatten()
eq(0, clone.overlap())
self.rbd.remove(ioctx, clone_name2)
# flatten after resizing to non-block size
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, new_order)
with Image(ioctx, clone_name2) as clone:
clone.resize(IMG_SIZE // 2 + 1)
clone.flatten()
eq(clone.overlap(), 0)
self.rbd.remove(ioctx, clone_name2)
def test_flatten_basic(self):
self.check_flatten_with_order(IMG_ORDER)
def test_flatten_smaller_order(self):
self.check_flatten_with_order(IMG_ORDER - 2)
def test_flatten_larger_order(self):
self.check_flatten_with_order(IMG_ORDER + 2)
def test_flatten_drops_cache(self):
global ioctx
global features
clone_name2 = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, IMG_ORDER)
with Image(ioctx, clone_name2) as clone:
with Image(ioctx, clone_name2) as clone2:
# cache object non-existence
data = clone.read(IMG_SIZE // 2, 256)
clone2_data = clone2.read(IMG_SIZE // 2, 256)
eq(data, clone2_data)
clone.flatten()
assert_raises(ImageNotFound, clone.parent_info)
assert_raises(ImageNotFound, clone2.parent_info)
after_flatten = clone.read(IMG_SIZE // 2, 256)
eq(data, after_flatten)
after_flatten = clone2.read(IMG_SIZE // 2, 256)
eq(data, after_flatten)
self.rbd.remove(ioctx, clone_name2)
def test_flatten_multi_level(self):
self.clone.create_snap('snap2')
self.clone.protect_snap('snap2')
clone_name3 = get_temp_image_name()
self.rbd.clone(ioctx, self.clone_name, 'snap2', ioctx, clone_name3,
features)
self.clone.flatten()
with Image(ioctx, clone_name3) as clone3:
clone3.flatten()
self.clone.unprotect_snap('snap2')
self.clone.remove_snap('snap2')
self.rbd.remove(ioctx, clone_name3)
def test_resize_flatten_multi_level(self):
self.clone.create_snap('snap2')
self.clone.protect_snap('snap2')
clone_name3 = get_temp_image_name()
self.rbd.clone(ioctx, self.clone_name, 'snap2', ioctx, clone_name3,
features)
self.clone.resize(1)
orig_data = self.image.read(0, 256)
with Image(ioctx, clone_name3) as clone3:
clone3_data = clone3.read(0, 256)
eq(orig_data, clone3_data)
self.clone.flatten()
with Image(ioctx, clone_name3) as clone3:
clone3_data = clone3.read(0, 256)
eq(orig_data, clone3_data)
self.rbd.remove(ioctx, clone_name3)
self.clone.unprotect_snap('snap2')
self.clone.remove_snap('snap2')
class TestImage(object):
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, image_name)
def tearDown(self):
self.image.close()
remove_image()
@require_new_format()
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_update_features(self):
features = self.image.features()
self.image.update_features(RBD_FEATURE_EXCLUSIVE_LOCK, True)
eq(features | RBD_FEATURE_EXCLUSIVE_LOCK, self.image.features())
def test_invalidate_cache(self):
self.image.write('abc', 0)
eq('abc', self.image.read(0, 3))
self.image.invalidate_cache()
eq('abc', self.image.read(0, 3))
def test_stat(self):
info = self.image.stat()
check_stat(info, IMG_SIZE, IMG_ORDER)
def test_flags(self):
flags = self.image.flags()
eq(0, flags)
def test_write(self):
data = rand_data(256)
self.image.write(data, 0)
def test_write_with_fadvise_flags(self):
data = rand_data(256)
self.image.write(data, 0, LIBRADOS_OP_FLAG_FADVISE_DONTNEED)
self.image.write(data, 0, LIBRADOS_OP_FLAG_FADVISE_NOCACHE)
def test_read(self):
data = self.image.read(0, 20)
eq(data, '\0' * 20)
def test_read_with_fadvise_flags(self):
data = self.image.read(0, 20, LIBRADOS_OP_FLAG_FADVISE_DONTNEED)
eq(data, '\0' * 20)
data = self.image.read(0, 20, LIBRADOS_OP_FLAG_FADVISE_RANDOM)
eq(data, '\0' * 20)
def test_large_write(self):
data = rand_data(IMG_SIZE)
self.image.write(data, 0)
def test_large_read(self):
data = self.image.read(0, IMG_SIZE)
eq(data, '\0' * IMG_SIZE)
def test_write_read(self):
data = rand_data(256)
offset = 50
self.image.write(data, offset)
read = self.image.read(offset, 256)
eq(data, read)
def test_read_bad_offset(self):
assert_raises(InvalidArgument, self.image.read, IMG_SIZE + 1, IMG_SIZE)
def test_resize(self):
new_size = IMG_SIZE * 2
self.image.resize(new_size)
info = self.image.stat()
check_stat(info, new_size, IMG_ORDER)
def test_size(self):
eq(IMG_SIZE, self.image.size())
self.image.create_snap('snap1')
new_size = IMG_SIZE * 2
self.image.resize(new_size)
eq(new_size, self.image.size())
self.image.create_snap('snap2')
self.image.set_snap('snap2')
eq(new_size, self.image.size())
self.image.set_snap('snap1')
eq(IMG_SIZE, self.image.size())
self.image.set_snap(None)
eq(new_size, self.image.size())
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_resize_down(self):
new_size = IMG_SIZE / 2
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2)
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE / 2, 256)
eq('\0' * 256, read)
def test_resize_bytes(self):
new_size = IMG_SIZE / 2 - 5
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2 - 10)
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE / 2 - 10, 5)
eq(data[:5], read)
read = self.image.read(IMG_SIZE / 2 - 5, 251)
eq('\0' * 251, read)
def test_copy(self):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
image_name = get_temp_image_name()
self.image.copy(ioctx, image_name)
assert_raises(ImageExists, self.image.copy, ioctx, image_name)
copy = Image(ioctx, image_name)
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, image_name)
eq(data, copy_data)
def test_create_snap(self):
global ioctx
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
at_snapshot = Image(ioctx, image_name, 'snap1')
snap_data = at_snapshot.read(0, 256)
at_snapshot.close()
eq(snap_data, '\0' * 256)
self.image.remove_snap('snap1')
def test_list_snaps(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.create_snap('snap2')
eq(['snap1', 'snap2'],
map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_remove_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1')
eq([], list(self.image.list_snaps()))
def test_rename_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.rename_snap("snap1", "snap1-rename")
eq(['snap1-rename'],
map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1-rename')
eq([], list(self.image.list_snaps()))
@require_features([RBD_FEATURE_LAYERING])
def test_protect_snap(self):
self.image.create_snap('snap1')
assert (not self.image.is_protected_snap('snap1'))
self.image.protect_snap('snap1')
assert (self.image.is_protected_snap('snap1'))
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
self.image.unprotect_snap('snap1')
assert (not self.image.is_protected_snap('snap1'))
self.image.remove_snap('snap1')
assert_raises(ImageNotFound, self.image.unprotect_snap, 'snap1')
assert_raises(ImageNotFound, self.image.is_protected_snap, 'snap1')
@require_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_exclusive_lock(self):
assert_raises(ImageBusy, remove_image)
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_snap(self):
self.image.create_snap('snap1')
assert_raises(ImageHasSnapshots, remove_image)
self.image.remove_snap('snap1')
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_watcher(self):
data = rand_data(256)
self.image.write(data, 0)
assert_raises(ImageBusy, remove_image)
read = self.image.read(0, 256)
eq(read, data)
def test_rollback_to_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_rollback_to_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_rollback_with_resize(self):
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, data)
new_size = IMG_SIZE * 2
self.image.resize(new_size)
check_stat(self.image.stat(), new_size, IMG_ORDER)
self.image.write(data, new_size - 256)
self.image.create_snap('snap2')
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
check_stat(self.image.stat(), IMG_SIZE, IMG_ORDER)
assert_raises(InvalidArgument, self.image.read, new_size - 256, 256)
self.image.rollback_to_snap('snap2')
check_stat(self.image.stat(), new_size, IMG_ORDER)
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_set_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_set_no_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap('snap1')
def test_set_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_many_snaps(self):
num_snaps = 200
for i in xrange(num_snaps):
self.image.create_snap(str(i))
snaps = sorted(self.image.list_snaps(),
key=lambda snap: int(snap['name']))
eq(len(snaps), num_snaps)
for i, snap in enumerate(snaps):
eq(snap['size'], IMG_SIZE)
eq(snap['name'], str(i))
for i in xrange(num_snaps):
self.image.remove_snap(str(i))
def test_set_snap_deleted(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
self.image.remove_snap('snap1')
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
def test_set_snap_recreated(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
self.image.remove_snap('snap1')
self.image.create_snap('snap1')
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap('snap1')
def test_lock_unlock(self):
assert_raises(ImageNotFound, self.image.unlock, '')
self.image.lock_exclusive('')
assert_raises(ImageExists, self.image.lock_exclusive, '')
assert_raises(ImageBusy, self.image.lock_exclusive, 'test')
assert_raises(ImageExists, self.image.lock_shared, '', '')
assert_raises(ImageBusy, self.image.lock_shared, 'foo', '')
self.image.unlock('')
def test_list_lockers(self):
eq([], self.image.list_lockers())
self.image.lock_exclusive('test')
lockers = self.image.list_lockers()
eq(1, len(lockers['lockers']))
_, cookie, _ = lockers['lockers'][0]
eq(cookie, 'test')
eq('', lockers['tag'])
assert lockers['exclusive']
self.image.unlock('test')
eq([], self.image.list_lockers())
num_shared = 10
for i in xrange(num_shared):
self.image.lock_shared(str(i), 'tag')
lockers = self.image.list_lockers()
eq('tag', lockers['tag'])
assert not lockers['exclusive']
eq(num_shared, len(lockers['lockers']))
cookies = sorted(map(lambda x: x[1], lockers['lockers']))
for i in xrange(num_shared):
eq(str(i), cookies[i])
self.image.unlock(str(i))
eq([], self.image.list_lockers())
def test_diff_iterate(self):
check_diff(self.image, 0, IMG_SIZE, None, [])
self.image.write('a' * 256, 0)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 256, True)])
self.image.write('b' * 256, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.discard(128, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.create_snap('snap1')
self.image.discard(0, 1 << IMG_ORDER)
self.image.create_snap('snap2')
self.image.set_snap('snap2')
check_diff(self.image, 0, IMG_SIZE, 'snap1', [(0, 512, False)])
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import rados
from rbd import RBD, Image
cluster = rados.Rados(conffile='')
cluster.connect()
ioctx = cluster.open_ioctx("rbd")
rbd = RBD()
image = Image(ioctx, "rbd0")
print("zzzzzzzzzzz")
size = image.size()
print("xxxxxxxxxxx")
image.close()
print size
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, IMG_NAME)
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, IMG_NAME)
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, image_name)
class TestImage(object):
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, IMG_NAME)
def tearDown(self):
self.image.close()
remove_image()
def test_stat(self):
info = self.image.stat()
check_stat(info, IMG_SIZE, IMG_ORDER)
def test_write(self):
data = rand_data(256)
self.image.write(data, 0)
def test_read(self):
data = self.image.read(0, 20)
eq(data, '\0' * 20)
def test_large_write(self):
data = rand_data(IMG_SIZE)
self.image.write(data, 0)
def test_large_read(self):
data = self.image.read(0, IMG_SIZE)
eq(data, '\0' * IMG_SIZE)
def test_write_read(self):
data = rand_data(256)
offset = 50
self.image.write(data, offset)
read = self.image.read(offset, 256)
eq(data, read)
def test_read_bad_offset(self):
assert_raises(InvalidArgument, self.image.read, IMG_SIZE + 1, IMG_SIZE)
def test_resize(self):
new_size = IMG_SIZE * 2
self.image.resize(new_size)
info = self.image.stat()
check_stat(info, new_size, IMG_ORDER)
def test_copy(self):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
self.image.copy(ioctx, IMG_NAME + '2')
assert_raises(ImageExists, self.image.copy, ioctx, IMG_NAME + '2')
copy = Image(ioctx, IMG_NAME + '2')
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, IMG_NAME + '2')
eq(data, copy_data)
def test_create_snap(self):
global ioctx
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
at_snapshot = Image(ioctx, IMG_NAME, 'snap1')
snap_data = at_snapshot.read(0, 256)
at_snapshot.close()
eq(snap_data, '\0' * 256)
self.image.remove_snap('snap1')
def test_list_snaps(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.create_snap('snap2')
eq(['snap1', 'snap2'],
map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_remove_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1')
eq([], list(self.image.list_snaps()))
def test_remove_with_snap(self):
self.image.create_snap('snap1')
assert_raises(ImageBusy, remove_image)
self.image.remove_snap('snap1')
def test_rollback_to_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_rollback_to_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_rollback_with_resize(self):
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, data)
new_size = IMG_SIZE * 2
self.image.resize(new_size)
check_stat(self.image.stat(), new_size, IMG_ORDER)
self.image.write(data, new_size - 256)
self.image.create_snap('snap2')
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
check_stat(self.image.stat(), IMG_SIZE, IMG_ORDER)
assert_raises(InvalidArgument, self.image.read, new_size - 256, 256)
self.image.rollback_to_snap('snap2')
check_stat(self.image.stat(), new_size, IMG_ORDER)
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_set_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_set_no_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap('snap1')
def test_set_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
class TestImage(object):
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, image_name)
def tearDown(self):
self.image.close()
remove_image()
self.image = None
@require_new_format()
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_update_features(self):
features = self.image.features()
self.image.update_features(RBD_FEATURE_EXCLUSIVE_LOCK, True)
eq(features | RBD_FEATURE_EXCLUSIVE_LOCK, self.image.features())
@require_features([RBD_FEATURE_STRIPINGV2])
def test_create_with_params(self):
global features
image_name = get_temp_image_name()
order = 20
stripe_unit = 1 << 20
stripe_count = 10
self.rbd.create(ioctx, image_name, IMG_SIZE, order,
False, features, stripe_unit, stripe_count)
image = Image(ioctx, image_name)
info = image.stat()
check_stat(info, IMG_SIZE, order)
eq(image.features(), features)
eq(image.stripe_unit(), stripe_unit)
eq(image.stripe_count(), stripe_count)
image.close()
RBD().remove(ioctx, image_name)
@require_new_format()
def test_id(self):
assert_not_equal(b'', self.image.id())
def test_block_name_prefix(self):
assert_not_equal(b'', self.image.block_name_prefix())
def test_invalidate_cache(self):
self.image.write(b'abc', 0)
eq(b'abc', self.image.read(0, 3))
self.image.invalidate_cache()
eq(b'abc', self.image.read(0, 3))
def test_stat(self):
info = self.image.stat()
check_stat(info, IMG_SIZE, IMG_ORDER)
def test_flags(self):
flags = self.image.flags()
eq(0, flags)
def test_image_auto_close(self):
image = Image(ioctx, image_name)
def test_write(self):
data = rand_data(256)
self.image.write(data, 0)
def test_write_with_fadvise_flags(self):
data = rand_data(256)
self.image.write(data, 0, LIBRADOS_OP_FLAG_FADVISE_DONTNEED)
self.image.write(data, 0, LIBRADOS_OP_FLAG_FADVISE_NOCACHE)
def test_read(self):
data = self.image.read(0, 20)
eq(data, b'\0' * 20)
def test_read_with_fadvise_flags(self):
data = self.image.read(0, 20, LIBRADOS_OP_FLAG_FADVISE_DONTNEED)
eq(data, b'\0' * 20)
data = self.image.read(0, 20, LIBRADOS_OP_FLAG_FADVISE_RANDOM)
eq(data, b'\0' * 20)
def test_large_write(self):
data = rand_data(IMG_SIZE)
self.image.write(data, 0)
def test_large_read(self):
data = self.image.read(0, IMG_SIZE)
eq(data, b'\0' * IMG_SIZE)
def test_write_read(self):
data = rand_data(256)
offset = 50
self.image.write(data, offset)
read = self.image.read(offset, 256)
eq(data, read)
def test_read_bad_offset(self):
assert_raises(InvalidArgument, self.image.read, IMG_SIZE + 1, IMG_SIZE)
def test_resize(self):
new_size = IMG_SIZE * 2
self.image.resize(new_size)
info = self.image.stat()
check_stat(info, new_size, IMG_ORDER)
def test_size(self):
eq(IMG_SIZE, self.image.size())
self.image.create_snap('snap1')
new_size = IMG_SIZE * 2
self.image.resize(new_size)
eq(new_size, self.image.size())
self.image.create_snap('snap2')
self.image.set_snap('snap2')
eq(new_size, self.image.size())
self.image.set_snap('snap1')
eq(IMG_SIZE, self.image.size())
self.image.set_snap(None)
eq(new_size, self.image.size())
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_resize_down(self):
new_size = IMG_SIZE // 2
data = rand_data(256)
self.image.write(data, IMG_SIZE // 2);
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE // 2, 256)
eq(b'\0' * 256, read)
def test_resize_bytes(self):
new_size = IMG_SIZE // 2 - 5
data = rand_data(256)
self.image.write(data, IMG_SIZE // 2 - 10);
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE // 2 - 10, 5)
eq(data[:5], read)
read = self.image.read(IMG_SIZE // 2 - 5, 251)
eq(b'\0' * 251, read)
def _test_copy(self, features=None, order=None, stripe_unit=None,
stripe_count=None):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
image_name = get_temp_image_name()
if features is None:
self.image.copy(ioctx, image_name)
elif order is None:
self.image.copy(ioctx, image_name, features)
elif stripe_unit is None:
self.image.copy(ioctx, image_name, features, order)
elif stripe_count is None:
self.image.copy(ioctx, image_name, features, order, stripe_unit)
else:
self.image.copy(ioctx, image_name, features, order, stripe_unit,
stripe_count)
assert_raises(ImageExists, self.image.copy, ioctx, image_name)
copy = Image(ioctx, image_name)
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, image_name)
eq(data, copy_data)
def test_copy(self):
self._test_copy()
def test_copy2(self):
self._test_copy(self.image.features(), self.image.stat()['order'])
@require_features([RBD_FEATURE_STRIPINGV2])
def test_copy3(self):
global features
self._test_copy(features, self.image.stat()['order'],
self.image.stripe_unit(), self.image.stripe_count())
def test_create_snap(self):
global ioctx
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
at_snapshot = Image(ioctx, image_name, 'snap1')
snap_data = at_snapshot.read(0, 256)
at_snapshot.close()
eq(snap_data, b'\0' * 256)
self.image.remove_snap('snap1')
def test_list_snaps(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], [snap['name'] for snap in self.image.list_snaps()])
self.image.create_snap('snap2')
eq(['snap1', 'snap2'], [snap['name'] for snap in self.image.list_snaps()])
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_list_snaps_iterator_auto_close(self):
self.image.create_snap('snap1')
self.image.list_snaps()
self.image.remove_snap('snap1')
def test_remove_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], [snap['name'] for snap in self.image.list_snaps()])
self.image.remove_snap('snap1')
eq([], list(self.image.list_snaps()))
def test_rename_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], [snap['name'] for snap in self.image.list_snaps()])
self.image.rename_snap("snap1", "snap1-rename")
eq(['snap1-rename'], [snap['name'] for snap in self.image.list_snaps()])
self.image.remove_snap('snap1-rename')
eq([], list(self.image.list_snaps()))
@require_features([RBD_FEATURE_LAYERING])
def test_protect_snap(self):
self.image.create_snap('snap1')
assert(not self.image.is_protected_snap('snap1'))
self.image.protect_snap('snap1')
assert(self.image.is_protected_snap('snap1'))
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
self.image.unprotect_snap('snap1')
assert(not self.image.is_protected_snap('snap1'))
self.image.remove_snap('snap1')
assert_raises(ImageNotFound, self.image.unprotect_snap, 'snap1')
assert_raises(ImageNotFound, self.image.is_protected_snap, 'snap1')
def test_limit_snaps(self):
self.image.set_snap_limit(2)
eq(2, self.image.get_snap_limit())
self.image.create_snap('snap1')
self.image.create_snap('snap2')
assert_raises(DiskQuotaExceeded, self.image.create_snap, 'snap3')
self.image.remove_snap_limit()
self.image.create_snap('snap3')
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
self.image.remove_snap('snap3')
@require_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_exclusive_lock(self):
assert_raises(ImageBusy, remove_image)
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_snap(self):
self.image.create_snap('snap1')
assert_raises(ImageHasSnapshots, remove_image)
self.image.remove_snap('snap1')
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_watcher(self):
data = rand_data(256)
self.image.write(data, 0)
assert_raises(ImageBusy, remove_image)
read = self.image.read(0, 256)
eq(read, data)
def test_rollback_to_snap(self):
self.image.write(b'\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
self.image.remove_snap('snap1')
def test_rollback_to_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
self.image.remove_snap('snap1')
def test_rollback_with_resize(self):
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, data)
new_size = IMG_SIZE * 2
self.image.resize(new_size)
check_stat(self.image.stat(), new_size, IMG_ORDER)
self.image.write(data, new_size - 256)
self.image.create_snap('snap2')
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
check_stat(self.image.stat(), IMG_SIZE, IMG_ORDER)
assert_raises(InvalidArgument, self.image.read, new_size - 256, 256)
self.image.rollback_to_snap('snap2')
check_stat(self.image.stat(), new_size, IMG_ORDER)
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_set_snap(self):
self.image.write(b'\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
self.image.remove_snap('snap1')
def test_set_no_snap(self):
self.image.write(b'\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap('snap1')
def test_set_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
self.image.remove_snap('snap1')
def test_many_snaps(self):
num_snaps = 200
for i in range(num_snaps):
self.image.create_snap(str(i))
snaps = sorted(self.image.list_snaps(),
key=lambda snap: int(snap['name']))
eq(len(snaps), num_snaps)
for i, snap in enumerate(snaps):
eq(snap['size'], IMG_SIZE)
eq(snap['name'], str(i))
for i in range(num_snaps):
self.image.remove_snap(str(i))
def test_set_snap_deleted(self):
self.image.write(b'\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
self.image.remove_snap('snap1')
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
def test_set_snap_recreated(self):
self.image.write(b'\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, b'\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
self.image.remove_snap('snap1')
self.image.create_snap('snap1')
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap('snap1')
def test_lock_unlock(self):
assert_raises(ImageNotFound, self.image.unlock, '')
self.image.lock_exclusive('')
assert_raises(ImageExists, self.image.lock_exclusive, '')
assert_raises(ImageBusy, self.image.lock_exclusive, 'test')
assert_raises(ImageExists, self.image.lock_shared, '', '')
assert_raises(ImageBusy, self.image.lock_shared, 'foo', '')
self.image.unlock('')
def test_list_lockers(self):
eq([], self.image.list_lockers())
self.image.lock_exclusive('test')
lockers = self.image.list_lockers()
eq(1, len(lockers['lockers']))
_, cookie, _ = lockers['lockers'][0]
eq(cookie, 'test')
eq('', lockers['tag'])
assert lockers['exclusive']
self.image.unlock('test')
eq([], self.image.list_lockers())
num_shared = 10
for i in range(num_shared):
self.image.lock_shared(str(i), 'tag')
lockers = self.image.list_lockers()
eq('tag', lockers['tag'])
assert not lockers['exclusive']
eq(num_shared, len(lockers['lockers']))
cookies = sorted(map(lambda x: x[1], lockers['lockers']))
for i in range(num_shared):
eq(str(i), cookies[i])
self.image.unlock(str(i))
eq([], self.image.list_lockers())
def test_diff_iterate(self):
check_diff(self.image, 0, IMG_SIZE, None, [])
self.image.write(b'a' * 256, 0)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 256, True)])
self.image.write(b'b' * 256, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.discard(128, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.create_snap('snap1')
self.image.discard(0, 1 << IMG_ORDER)
self.image.create_snap('snap2')
self.image.set_snap('snap2')
check_diff(self.image, 0, IMG_SIZE, 'snap1', [(0, 512, False)])
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_aio_read(self):
# this is a list so that the local cb() can modify it
retval = [None]
def cb(_, buf):
retval[0] = buf
# test1: success case
comp = self.image.aio_read(0, 20, cb)
comp.wait_for_complete_and_cb()
eq(retval[0], b'\0' * 20)
eq(comp.get_return_value(), 20)
eq(sys.getrefcount(comp), 2)
# test2: error case
retval[0] = 1
comp = self.image.aio_read(IMG_SIZE, 20, cb)
comp.wait_for_complete_and_cb()
eq(None, retval[0])
assert(comp.get_return_value() < 0)
eq(sys.getrefcount(comp), 2)
def test_aio_write(self):
retval = [None]
def cb(comp):
retval[0] = comp.get_return_value()
data = rand_data(256)
comp = self.image.aio_write(data, 256, cb)
comp.wait_for_complete_and_cb()
eq(retval[0], 0)
eq(comp.get_return_value(), 0)
eq(sys.getrefcount(comp), 2)
eq(self.image.read(256, 256), data)
def test_aio_discard(self):
retval = [None]
def cb(comp):
retval[0] = comp.get_return_value()
data = rand_data(256)
self.image.write(data, 0)
comp = self.image.aio_discard(0, 256, cb)
comp.wait_for_complete_and_cb()
eq(retval[0], 0)
eq(comp.get_return_value(), 0)
eq(sys.getrefcount(comp), 2)
eq(self.image.read(256, 256), b'\0' * 256)
def test_aio_flush(self):
retval = [None]
def cb(comp):
retval[0] = comp.get_return_value()
comp = self.image.aio_flush(cb)
comp.wait_for_complete_and_cb()
eq(retval[0], 0)
eq(sys.getrefcount(comp), 2)
def setUp(self):
self.rbd = RBD()
self.initial_mirror_mode = self.rbd.mirror_mode_get(ioctx)
self.rbd.mirror_mode_set(ioctx, RBD_MIRROR_MODE_POOL)
create_image()
self.image = Image(ioctx, image_name)
class TestMirroring(object):
@staticmethod
def check_info(info, global_id, state, primary=None):
eq(global_id, info['global_id'])
eq(state, info['state'])
if primary is not None:
eq(primary, info['primary'])
def setUp(self):
self.rbd = RBD()
self.initial_mirror_mode = self.rbd.mirror_mode_get(ioctx)
self.rbd.mirror_mode_set(ioctx, RBD_MIRROR_MODE_POOL)
create_image()
self.image = Image(ioctx, image_name)
def tearDown(self):
self.image.close()
remove_image()
self.rbd.mirror_mode_set(ioctx, self.initial_mirror_mode)
def test_mirror_peer(self):
eq([], list(self.rbd.mirror_peer_list(ioctx)))
cluster_name = "test_cluster"
client_name = "test_client"
uuid = self.rbd.mirror_peer_add(ioctx, cluster_name, client_name)
assert(uuid)
peer = {
'uuid' : uuid,
'cluster_name' : cluster_name,
'client_name' : client_name,
}
eq([peer], list(self.rbd.mirror_peer_list(ioctx)))
cluster_name = "test_cluster1"
self.rbd.mirror_peer_set_cluster(ioctx, uuid, cluster_name)
client_name = "test_client1"
self.rbd.mirror_peer_set_client(ioctx, uuid, client_name)
peer = {
'uuid' : uuid,
'cluster_name' : cluster_name,
'client_name' : client_name,
}
eq([peer], list(self.rbd.mirror_peer_list(ioctx)))
self.rbd.mirror_peer_remove(ioctx, uuid)
eq([], list(self.rbd.mirror_peer_list(ioctx)))
@require_features([RBD_FEATURE_EXCLUSIVE_LOCK,
RBD_FEATURE_JOURNALING])
def test_mirror_image(self):
self.rbd.mirror_mode_set(ioctx, RBD_MIRROR_MODE_IMAGE)
self.image.mirror_image_disable(True)
info = self.image.mirror_image_get_info()
self.check_info(info, '', RBD_MIRROR_IMAGE_DISABLED, False)
self.image.mirror_image_enable()
info = self.image.mirror_image_get_info()
global_id = info['global_id']
self.check_info(info, global_id, RBD_MIRROR_IMAGE_ENABLED, True)
self.rbd.mirror_mode_set(ioctx, RBD_MIRROR_MODE_POOL)
fail = False
try:
self.image.mirror_image_disable(True)
except InvalidArgument:
fail = True
eq(True, fail) # Fails because of mirror mode pool
self.image.mirror_image_demote()
info = self.image.mirror_image_get_info()
self.check_info(info, global_id, RBD_MIRROR_IMAGE_ENABLED, False)
self.image.mirror_image_resync()
self.image.mirror_image_promote(True)
info = self.image.mirror_image_get_info()
self.check_info(info, global_id, RBD_MIRROR_IMAGE_ENABLED, True)
fail = False
try:
self.image.mirror_image_resync()
except InvalidArgument:
fail = True
eq(True, fail) # Fails because it is primary
status = self.image.mirror_image_get_status()
eq(image_name, status['name'])
eq(False, status['up'])
eq(MIRROR_IMAGE_STATUS_STATE_UNKNOWN, status['state'])
info = status['info']
self.check_info(info, global_id, RBD_MIRROR_IMAGE_ENABLED, True)
@require_features([RBD_FEATURE_EXCLUSIVE_LOCK,
RBD_FEATURE_JOURNALING])
def test_mirror_image_status(self):
info = self.image.mirror_image_get_info()
global_id = info['global_id']
state = info['state']
primary = info['primary']
status = self.image.mirror_image_get_status()
eq(image_name, status['name'])
eq(False, status['up'])
eq(MIRROR_IMAGE_STATUS_STATE_UNKNOWN, status['state'])
info = status['info']
self.check_info(info, global_id, state, primary)
images = list(self.rbd.mirror_image_status_list(ioctx))
eq(1, len(images))
status = images[0]
eq(image_name, status['name'])
eq(False, status['up'])
eq(MIRROR_IMAGE_STATUS_STATE_UNKNOWN, status['state'])
info = status['info']
self.check_info(info, global_id, state)
states = self.rbd.mirror_image_status_summary(ioctx)
eq([(MIRROR_IMAGE_STATUS_STATE_UNKNOWN, 1)], states)
N = 65
for i in range(N):
self.rbd.create(ioctx, image_name + str(i), IMG_SIZE, IMG_ORDER,
old_format=False, features=int(features))
images = list(self.rbd.mirror_image_status_list(ioctx))
eq(N + 1, len(images))
for i in range(N):
self.rbd.remove(ioctx, image_name + str(i))
def test_follower_snap_create(self):
with nested(Image(ioctx, image_name),
Image(ioctx2, image_name)) as (image1, image2):
image2.create_snap('snap1')
image1.remove_snap('snap1')
class TestClone(object):
@require_features([RBD_FEATURE_LAYERING])
def setUp(self):
global ioctx
global features
self.rbd = RBD()
create_image()
self.image = Image(ioctx, image_name)
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2)
self.image.create_snap('snap1')
global features
self.image.protect_snap('snap1')
self.clone_name = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, self.clone_name,
features)
self.clone = Image(ioctx, self.clone_name)
def tearDown(self):
global ioctx
self.clone.close()
self.rbd.remove(ioctx, self.clone_name)
self.image.unprotect_snap('snap1')
self.image.remove_snap('snap1')
self.image.close()
remove_image()
def test_unprotected(self):
self.image.create_snap('snap2')
global features
clone_name2 = get_temp_image_name()
assert_raises(InvalidArgument, self.rbd.clone, ioctx, image_name,
'snap2', ioctx, clone_name2, features)
self.image.remove_snap('snap2')
def test_unprotect_with_children(self):
global features
# can't remove a snapshot that has dependent clones
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
# validate parent info of clone created by TestClone.setUp
(pool, image, snap) = self.clone.parent_info()
eq(pool, pool_name)
eq(image, image_name)
eq(snap, 'snap1')
# create a new pool...
pool_name2 = get_temp_pool_name()
rados.create_pool(pool_name2)
other_ioctx = rados.open_ioctx(pool_name2)
# ...with a clone of the same parent
other_clone_name = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap1', other_ioctx,
other_clone_name, features)
self.other_clone = Image(other_ioctx, other_clone_name)
# validate its parent info
(pool, image, snap) = self.other_clone.parent_info()
eq(pool, pool_name)
eq(image, image_name)
eq(snap, 'snap1')
# can't unprotect snap with children
assert_raises(ImageBusy, self.image.unprotect_snap, 'snap1')
# 2 children, check that cannot remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
# close and remove other pool's clone
self.other_clone.close()
self.rbd.remove(other_ioctx, other_clone_name)
# check that we cannot yet remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
other_ioctx.close()
rados.delete_pool(pool_name2)
# unprotect, remove parent snap happen in cleanup, and should succeed
def test_stat(self):
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], image_info['size'])
eq(clone_info['size'], self.clone.overlap())
def test_resize_stat(self):
self.clone.resize(IMG_SIZE / 2)
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], IMG_SIZE / 2)
eq(image_info['size'], IMG_SIZE)
eq(self.clone.overlap(), IMG_SIZE / 2)
self.clone.resize(IMG_SIZE * 2)
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], IMG_SIZE * 2)
eq(image_info['size'], IMG_SIZE)
eq(self.clone.overlap(), IMG_SIZE / 2)
def test_resize_io(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
self.image.resize(0)
self.clone.resize(IMG_SIZE / 2 + 128)
child_data = self.clone.read(IMG_SIZE / 2, 128)
eq(child_data, parent_data[:128])
self.clone.resize(IMG_SIZE)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data[:128] + ('\0' * 128))
self.clone.resize(IMG_SIZE / 2 + 1)
child_data = self.clone.read(IMG_SIZE / 2, 1)
eq(child_data, parent_data[0])
self.clone.resize(0)
self.clone.resize(IMG_SIZE)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, '\0' * 256)
def test_read(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data)
def test_write(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
new_data = rand_data(256)
self.clone.write(new_data, IMG_SIZE / 2 + 256)
child_data = self.clone.read(IMG_SIZE / 2 + 256, 256)
eq(child_data, new_data)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data)
parent_data = self.image.read(IMG_SIZE / 2 + 256, 256)
eq(parent_data, '\0' * 256)
def check_children(self, expected):
actual = self.image.list_children()
# dedup for cache pools until
# http://tracker.ceph.com/issues/8187 is fixed
deduped = set([(pool_name, image[1]) for image in actual])
eq(deduped, set(expected))
def test_list_children(self):
global ioctx
global features
self.image.set_snap('snap1')
self.check_children([(pool_name, self.clone_name)])
self.clone.close()
self.rbd.remove(ioctx, self.clone_name)
eq(self.image.list_children(), [])
clone_name = get_temp_image_name() + '_'
expected_children = []
for i in xrange(10):
self.rbd.clone(ioctx, image_name, 'snap1', ioctx,
clone_name + str(i), features)
expected_children.append((pool_name, clone_name + str(i)))
self.check_children(expected_children)
for i in xrange(10):
self.rbd.remove(ioctx, clone_name + str(i))
expected_children.pop(0)
self.check_children(expected_children)
eq(self.image.list_children(), [])
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, self.clone_name,
features)
self.check_children([(pool_name, self.clone_name)])
self.clone = Image(ioctx, self.clone_name)
def test_flatten_errors(self):
# test that we can't flatten a non-clone
assert_raises(InvalidArgument, self.image.flatten)
# test that we can't flatten a snapshot
self.clone.create_snap('snap2')
self.clone.set_snap('snap2')
assert_raises(ReadOnlyImage, self.clone.flatten)
self.clone.remove_snap('snap2')
def check_flatten_with_order(self, new_order):
global ioctx
global features
clone_name2 = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, new_order)
#with Image(ioctx, 'clone2') as clone:
clone2 = Image(ioctx, clone_name2)
clone2.flatten()
eq(clone2.overlap(), 0)
clone2.close()
self.rbd.remove(ioctx, clone_name2)
# flatten after resizing to non-block size
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, new_order)
with Image(ioctx, clone_name2) as clone:
clone.resize(IMG_SIZE / 2 - 1)
clone.flatten()
eq(0, clone.overlap())
self.rbd.remove(ioctx, clone_name2)
# flatten after resizing to non-block size
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, new_order)
with Image(ioctx, clone_name2) as clone:
clone.resize(IMG_SIZE / 2 + 1)
clone.flatten()
eq(clone.overlap(), 0)
self.rbd.remove(ioctx, clone_name2)
def test_flatten_basic(self):
self.check_flatten_with_order(IMG_ORDER)
def test_flatten_smaller_order(self):
self.check_flatten_with_order(IMG_ORDER - 2)
def test_flatten_larger_order(self):
self.check_flatten_with_order(IMG_ORDER + 2)
def test_flatten_drops_cache(self):
global ioctx
global features
clone_name2 = get_temp_image_name()
self.rbd.clone(ioctx, image_name, 'snap1', ioctx, clone_name2,
features, IMG_ORDER)
with Image(ioctx, clone_name2) as clone:
with Image(ioctx, clone_name2) as clone2:
# cache object non-existence
data = clone.read(IMG_SIZE / 2, 256)
clone2_data = clone2.read(IMG_SIZE / 2, 256)
eq(data, clone2_data)
clone.flatten()
assert_raises(ImageNotFound, clone.parent_info)
assert_raises(ImageNotFound, clone2.parent_info)
after_flatten = clone.read(IMG_SIZE / 2, 256)
eq(data, after_flatten)
after_flatten = clone2.read(IMG_SIZE / 2, 256)
eq(data, after_flatten)
self.rbd.remove(ioctx, clone_name2)
def test_flatten_multi_level(self):
self.clone.create_snap('snap2')
self.clone.protect_snap('snap2')
clone_name3 = get_temp_image_name()
self.rbd.clone(ioctx, self.clone_name, 'snap2', ioctx, clone_name3,
features)
self.clone.flatten()
with Image(ioctx, clone_name3) as clone3:
clone3.flatten()
self.clone.unprotect_snap('snap2')
self.clone.remove_snap('snap2')
self.rbd.remove(ioctx, clone_name3)
def test_resize_flatten_multi_level(self):
self.clone.create_snap('snap2')
self.clone.protect_snap('snap2')
clone_name3 = get_temp_image_name()
self.rbd.clone(ioctx, self.clone_name, 'snap2', ioctx, clone_name3,
features)
self.clone.resize(1)
orig_data = self.image.read(0, 256)
with Image(ioctx, clone_name3) as clone3:
clone3_data = clone3.read(0, 256)
eq(orig_data, clone3_data)
self.clone.flatten()
with Image(ioctx, clone_name3) as clone3:
clone3_data = clone3.read(0, 256)
eq(orig_data, clone3_data)
self.rbd.remove(ioctx, clone_name3)
self.clone.unprotect_snap('snap2')
self.clone.remove_snap('snap2')
def test_read_only_leadership(self):
with Image(ioctx, image_name, read_only=True) as image:
eq(image.is_exclusive_lock_owner(), False)
def test_image_auto_close(self):
image = Image(ioctx, image_name)
def test_ownership(self):
with nested(Image(ioctx, image_name),
Image(ioctx2, image_name)) as (image1, image2):
image1.write('0' * 256, 0)
eq(image1.is_exclusive_lock_owner(), True)
eq(image2.is_exclusive_lock_owner(), False)
def test_follower_snap_create(self):
with Image(ioctx, image_name) as image1, Image(ioctx2, image_name) as image2:
image2.create_snap('snap1')
image1.remove_snap('snap1')
def slave(ioctx):
print("starting slave")
while True:
try:
with Image(ioctx, CLONE_IMG_NAME) as image:
if (image.list_lockers() != []
and image.read(IMG_SIZE - 1, 1) == b'1'):
break
except Exception:
pass
print("detected master")
print("rename")
RBD().rename(ioctx, CLONE_IMG_NAME, CLONE_IMG_RENAME)
assert (not image.is_exclusive_lock_owner())
with Image(ioctx, CLONE_IMG_RENAME) as image:
print("flatten")
image.flatten()
assert (not image.is_exclusive_lock_owner())
print("resize")
image.resize(IMG_SIZE // 2)
assert (not image.is_exclusive_lock_owner())
assert (image.stat()['size'] == IMG_SIZE // 2)
print("create_snap")
image.create_snap('snap1')
assert (not image.is_exclusive_lock_owner())
assert (any(snap['name'] == 'snap1' for snap in image.list_snaps()))
print("protect_snap")
image.protect_snap('snap1')
assert (not image.is_exclusive_lock_owner())
assert (image.is_protected_snap('snap1'))
print("unprotect_snap")
image.unprotect_snap('snap1')
assert (not image.is_exclusive_lock_owner())
assert (not image.is_protected_snap('snap1'))
print("rename_snap")
image.rename_snap('snap1', 'snap1-new')
assert (not image.is_exclusive_lock_owner())
assert (any(snap['name'] == 'snap1-new'
for snap in image.list_snaps()))
print("remove_snap")
image.remove_snap('snap1-new')
assert (not image.is_exclusive_lock_owner())
assert (list(image.list_snaps()) == [])
print("rebuild object map")
features = image.features() & (RBD_FEATURE_OBJECT_MAP
| RBD_FEATURE_FAST_DIFF)
if features:
image.update_features(features, False)
image.update_features(RBD_FEATURE_OBJECT_MAP, True)
assert ((image.flags() & RBD_FLAG_OBJECT_MAP_INVALID) != 0)
image.rebuild_object_map()
assert (not image.is_exclusive_lock_owner())
assert ((image.flags() & RBD_FLAG_OBJECT_MAP_INVALID) == 0)
print("write")
data = os.urandom(512)
image.write(data, 0)
assert (image.is_exclusive_lock_owner())
print("finished")
class TestImage(object):
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, IMG_NAME)
def tearDown(self):
self.image.close()
remove_image()
def test_stat(self):
info = self.image.stat()
check_stat(info, IMG_SIZE, IMG_ORDER)
def test_write(self):
data = rand_data(256)
self.image.write(data, 0)
def test_read(self):
data = self.image.read(0, 20)
eq(data, "\0" * 20)
def test_large_write(self):
data = rand_data(IMG_SIZE)
self.image.write(data, 0)
def test_large_read(self):
data = self.image.read(0, IMG_SIZE)
eq(data, "\0" * IMG_SIZE)
def test_write_read(self):
data = rand_data(256)
offset = 50
self.image.write(data, offset)
read = self.image.read(offset, 256)
eq(data, read)
def test_read_bad_offset(self):
assert_raises(InvalidArgument, self.image.read, IMG_SIZE + 1, IMG_SIZE)
def test_resize(self):
new_size = IMG_SIZE * 2
self.image.resize(new_size)
info = self.image.stat()
check_stat(info, new_size, IMG_ORDER)
def test_size(self):
eq(IMG_SIZE, self.image.size())
self.image.create_snap("snap1")
new_size = IMG_SIZE * 2
self.image.resize(new_size)
eq(new_size, self.image.size())
self.image.create_snap("snap2")
self.image.set_snap("snap2")
eq(new_size, self.image.size())
self.image.set_snap("snap1")
eq(IMG_SIZE, self.image.size())
self.image.set_snap(None)
eq(new_size, self.image.size())
self.image.remove_snap("snap1")
self.image.remove_snap("snap2")
def test_resize_down(self):
new_size = IMG_SIZE / 2
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2)
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE / 2, 256)
eq("\0" * 256, read)
def test_resize_bytes(self):
new_size = IMG_SIZE / 2 - 5
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2 - 10)
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE / 2 - 10, 5)
eq(data[:5], read)
read = self.image.read(IMG_SIZE / 2 - 5, 251)
eq("\0" * 251, read)
def test_copy(self):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
self.image.copy(ioctx, IMG_NAME + "2")
assert_raises(ImageExists, self.image.copy, ioctx, IMG_NAME + "2")
copy = Image(ioctx, IMG_NAME + "2")
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, IMG_NAME + "2")
eq(data, copy_data)
def test_create_snap(self):
global ioctx
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
at_snapshot = Image(ioctx, IMG_NAME, "snap1")
snap_data = at_snapshot.read(0, 256)
at_snapshot.close()
eq(snap_data, "\0" * 256)
self.image.remove_snap("snap1")
def test_list_snaps(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap("snap1")
eq(["snap1"], map(lambda snap: snap["name"], self.image.list_snaps()))
self.image.create_snap("snap2")
eq(["snap1", "snap2"], map(lambda snap: snap["name"], self.image.list_snaps()))
self.image.remove_snap("snap1")
self.image.remove_snap("snap2")
def test_remove_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap("snap1")
eq(["snap1"], map(lambda snap: snap["name"], self.image.list_snaps()))
self.image.remove_snap("snap1")
eq([], list(self.image.list_snaps()))
@require_features([RBD_FEATURE_LAYERING])
def test_protect_snap(self):
self.image.create_snap("snap1")
assert not self.image.is_protected_snap("snap1")
self.image.protect_snap("snap1")
assert self.image.is_protected_snap("snap1")
assert_raises(ImageBusy, self.image.remove_snap, "snap1")
self.image.unprotect_snap("snap1")
assert not self.image.is_protected_snap("snap1")
self.image.remove_snap("snap1")
assert_raises(ImageNotFound, self.image.unprotect_snap, "snap1")
assert_raises(ImageNotFound, self.image.is_protected_snap, "snap1")
def test_remove_with_snap(self):
self.image.create_snap("snap1")
assert_raises(ImageHasSnapshots, remove_image)
self.image.remove_snap("snap1")
def test_remove_with_watcher(self):
data = rand_data(256)
self.image.write(data, 0)
assert_raises(ImageBusy, remove_image)
read = self.image.read(0, 256)
eq(read, data)
def test_rollback_to_snap(self):
self.image.write("\0" * 256, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
self.image.remove_snap("snap1")
def test_rollback_to_snap_sparse(self):
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
self.image.remove_snap("snap1")
def test_rollback_with_resize(self):
read = self.image.read(0, 256)
eq(read, "\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, data)
new_size = IMG_SIZE * 2
self.image.resize(new_size)
check_stat(self.image.stat(), new_size, IMG_ORDER)
self.image.write(data, new_size - 256)
self.image.create_snap("snap2")
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.rollback_to_snap("snap1")
check_stat(self.image.stat(), IMG_SIZE, IMG_ORDER)
assert_raises(InvalidArgument, self.image.read, new_size - 256, 256)
self.image.rollback_to_snap("snap2")
check_stat(self.image.stat(), new_size, IMG_ORDER)
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.remove_snap("snap1")
self.image.remove_snap("snap2")
def test_set_snap(self):
self.image.write("\0" * 256, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
self.image.remove_snap("snap1")
def test_set_no_snap(self):
self.image.write("\0" * 256, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap("snap1")
def test_set_snap_sparse(self):
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
self.image.remove_snap("snap1")
def test_many_snaps(self):
num_snaps = 200
for i in xrange(num_snaps):
self.image.create_snap(str(i))
snaps = sorted(self.image.list_snaps(), key=lambda snap: int(snap["name"]))
eq(len(snaps), num_snaps)
for i, snap in enumerate(snaps):
eq(snap["size"], IMG_SIZE)
eq(snap["name"], str(i))
for i in xrange(num_snaps):
self.image.remove_snap(str(i))
def test_set_snap_deleted(self):
self.image.write("\0" * 256, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap("snap1")
self.image.remove_snap("snap1")
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
def test_set_snap_recreated(self):
self.image.write("\0" * 256, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, "\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap("snap1")
self.image.remove_snap("snap1")
self.image.create_snap("snap1")
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap("snap1")
def test_lock_unlock(self):
assert_raises(ImageNotFound, self.image.unlock, "")
self.image.lock_exclusive("")
assert_raises(ImageExists, self.image.lock_exclusive, "")
assert_raises(ImageBusy, self.image.lock_exclusive, "test")
assert_raises(ImageExists, self.image.lock_shared, "", "")
assert_raises(ImageBusy, self.image.lock_shared, "foo", "")
self.image.unlock("")
def test_list_lockers(self):
eq([], self.image.list_lockers())
self.image.lock_exclusive("test")
lockers = self.image.list_lockers()
eq(1, len(lockers["lockers"]))
_, cookie, _ = lockers["lockers"][0]
eq(cookie, "test")
eq("", lockers["tag"])
assert lockers["exclusive"]
self.image.unlock("test")
eq([], self.image.list_lockers())
num_shared = 10
for i in xrange(num_shared):
self.image.lock_shared(str(i), "tag")
lockers = self.image.list_lockers()
eq("tag", lockers["tag"])
assert not lockers["exclusive"]
eq(num_shared, len(lockers["lockers"]))
cookies = sorted(map(lambda x: x[1], lockers["lockers"]))
for i in xrange(num_shared):
eq(str(i), cookies[i])
self.image.unlock(str(i))
eq([], self.image.list_lockers())
def test_diff_iterate(self):
check_diff(self.image, 0, IMG_SIZE, None, [])
self.image.write("a" * 256, 0)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 256, True)])
self.image.write("b" * 256, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.discard(128, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.create_snap("snap1")
self.image.discard(0, 1 << IMG_ORDER)
self.image.create_snap("snap2")
self.image.set_snap("snap2")
check_diff(self.image, 0, IMG_SIZE, "snap1", [(0, 512, False)])
self.image.remove_snap("snap1")
self.image.remove_snap("snap2")
class TestImage(object):
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, IMG_NAME)
def tearDown(self):
self.image.close()
remove_image()
def test_stat(self):
info = self.image.stat()
check_stat(info, IMG_SIZE, IMG_ORDER)
def test_write(self):
data = rand_data(256)
self.image.write(data, 0)
def test_read(self):
data = self.image.read(0, 20)
eq(data, '\0' * 20)
def test_large_write(self):
data = rand_data(IMG_SIZE)
self.image.write(data, 0)
def test_large_read(self):
data = self.image.read(0, IMG_SIZE)
eq(data, '\0' * IMG_SIZE)
def test_write_read(self):
data = rand_data(256)
offset = 50
self.image.write(data, offset)
read = self.image.read(offset, 256)
eq(data, read)
def test_read_bad_offset(self):
assert_raises(InvalidArgument, self.image.read, IMG_SIZE + 1, IMG_SIZE)
def test_resize(self):
new_size = IMG_SIZE * 2
self.image.resize(new_size)
info = self.image.stat()
check_stat(info, new_size, IMG_ORDER)
def test_copy(self):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
bytes_copied = self.image.copy(ioctx, IMG_NAME + '2')
copy = Image(ioctx, IMG_NAME + '2')
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, IMG_NAME + '2')
eq(bytes_copied, IMG_SIZE)
eq(data, copy_data)
def test_create_snap(self):
global ioctx
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
at_snapshot = Image(ioctx, IMG_NAME, 'snap1')
snap_data = at_snapshot.read(0, 256)
at_snapshot.close()
eq(snap_data, '\0' * 256)
def test_list_snaps(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.create_snap('snap2')
eq(['snap1', 'snap2'], map(lambda snap: snap['name'], self.image.list_snaps()))
def test_remove_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1')
eq([], list(self.image.list_snaps()))
def test_rollback_to_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
def test_rollback_to_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
def test_set_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
def test_set_no_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
def test_set_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
def test_ownership(self):
with Image(ioctx, image_name) as image1, Image(ioctx2, image_name) as image2:
image1.write(b'0'*256, 0)
eq(image1.is_exclusive_lock_owner(), True)
eq(image2.is_exclusive_lock_owner(), False)
class TestImage(object):
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, image_name)
def tearDown(self):
self.image.close()
remove_image()
@require_new_format()
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_update_features(self):
features = self.image.features()
self.image.update_features(RBD_FEATURE_EXCLUSIVE_LOCK, True)
eq(features | RBD_FEATURE_EXCLUSIVE_LOCK, self.image.features())
def test_invalidate_cache(self):
self.image.write('abc', 0)
eq('abc', self.image.read(0, 3))
self.image.invalidate_cache()
eq('abc', self.image.read(0, 3))
def test_stat(self):
info = self.image.stat()
check_stat(info, IMG_SIZE, IMG_ORDER)
def test_flags(self):
flags = self.image.flags()
eq(0, flags)
def test_write(self):
data = rand_data(256)
self.image.write(data, 0)
def test_write_with_fadvise_flags(self):
data = rand_data(256)
self.image.write(data, 0, LIBRADOS_OP_FLAG_FADVISE_DONTNEED)
self.image.write(data, 0, LIBRADOS_OP_FLAG_FADVISE_NOCACHE)
def test_read(self):
data = self.image.read(0, 20)
eq(data, '\0' * 20)
def test_read_with_fadvise_flags(self):
data = self.image.read(0, 20, LIBRADOS_OP_FLAG_FADVISE_DONTNEED)
eq(data, '\0' * 20)
data = self.image.read(0, 20, LIBRADOS_OP_FLAG_FADVISE_RANDOM)
eq(data, '\0' * 20)
def test_large_write(self):
data = rand_data(IMG_SIZE)
self.image.write(data, 0)
def test_large_read(self):
data = self.image.read(0, IMG_SIZE)
eq(data, '\0' * IMG_SIZE)
def test_write_read(self):
data = rand_data(256)
offset = 50
self.image.write(data, offset)
read = self.image.read(offset, 256)
eq(data, read)
def test_read_bad_offset(self):
assert_raises(InvalidArgument, self.image.read, IMG_SIZE + 1, IMG_SIZE)
def test_resize(self):
new_size = IMG_SIZE * 2
self.image.resize(new_size)
info = self.image.stat()
check_stat(info, new_size, IMG_ORDER)
def test_size(self):
eq(IMG_SIZE, self.image.size())
self.image.create_snap('snap1')
new_size = IMG_SIZE * 2
self.image.resize(new_size)
eq(new_size, self.image.size())
self.image.create_snap('snap2')
self.image.set_snap('snap2')
eq(new_size, self.image.size())
self.image.set_snap('snap1')
eq(IMG_SIZE, self.image.size())
self.image.set_snap(None)
eq(new_size, self.image.size())
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_resize_down(self):
new_size = IMG_SIZE / 2
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2);
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE / 2, 256)
eq('\0' * 256, read)
def test_resize_bytes(self):
new_size = IMG_SIZE / 2 - 5
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2 - 10);
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE / 2 - 10, 5)
eq(data[:5], read)
read = self.image.read(IMG_SIZE / 2 - 5, 251)
eq('\0' * 251, read)
def test_copy(self):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
image_name = get_temp_image_name()
self.image.copy(ioctx, image_name)
assert_raises(ImageExists, self.image.copy, ioctx, image_name)
copy = Image(ioctx, image_name)
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, image_name)
eq(data, copy_data)
def test_create_snap(self):
global ioctx
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
at_snapshot = Image(ioctx, image_name, 'snap1')
snap_data = at_snapshot.read(0, 256)
at_snapshot.close()
eq(snap_data, '\0' * 256)
self.image.remove_snap('snap1')
def test_list_snaps(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.create_snap('snap2')
eq(['snap1', 'snap2'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_remove_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1')
eq([], list(self.image.list_snaps()))
def test_rename_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.rename_snap("snap1", "snap1-rename")
eq(['snap1-rename'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1-rename')
eq([], list(self.image.list_snaps()))
@require_features([RBD_FEATURE_LAYERING])
def test_protect_snap(self):
self.image.create_snap('snap1')
assert(not self.image.is_protected_snap('snap1'))
self.image.protect_snap('snap1')
assert(self.image.is_protected_snap('snap1'))
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
self.image.unprotect_snap('snap1')
assert(not self.image.is_protected_snap('snap1'))
self.image.remove_snap('snap1')
assert_raises(ImageNotFound, self.image.unprotect_snap, 'snap1')
assert_raises(ImageNotFound, self.image.is_protected_snap, 'snap1')
@require_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_exclusive_lock(self):
assert_raises(ImageBusy, remove_image)
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_snap(self):
self.image.create_snap('snap1')
assert_raises(ImageHasSnapshots, remove_image)
self.image.remove_snap('snap1')
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_watcher(self):
data = rand_data(256)
self.image.write(data, 0)
assert_raises(ImageBusy, remove_image)
read = self.image.read(0, 256)
eq(read, data)
def test_rollback_to_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_rollback_to_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_rollback_with_resize(self):
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, data)
new_size = IMG_SIZE * 2
self.image.resize(new_size)
check_stat(self.image.stat(), new_size, IMG_ORDER)
self.image.write(data, new_size - 256)
self.image.create_snap('snap2')
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
check_stat(self.image.stat(), IMG_SIZE, IMG_ORDER)
assert_raises(InvalidArgument, self.image.read, new_size - 256, 256)
self.image.rollback_to_snap('snap2')
check_stat(self.image.stat(), new_size, IMG_ORDER)
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_set_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_set_no_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap('snap1')
def test_set_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_many_snaps(self):
num_snaps = 200
for i in xrange(num_snaps):
self.image.create_snap(str(i))
snaps = sorted(self.image.list_snaps(),
key=lambda snap: int(snap['name']))
eq(len(snaps), num_snaps)
for i, snap in enumerate(snaps):
eq(snap['size'], IMG_SIZE)
eq(snap['name'], str(i))
for i in xrange(num_snaps):
self.image.remove_snap(str(i))
def test_set_snap_deleted(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
self.image.remove_snap('snap1')
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
def test_set_snap_recreated(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
self.image.remove_snap('snap1')
self.image.create_snap('snap1')
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap('snap1')
def test_lock_unlock(self):
assert_raises(ImageNotFound, self.image.unlock, '')
self.image.lock_exclusive('')
assert_raises(ImageExists, self.image.lock_exclusive, '')
assert_raises(ImageBusy, self.image.lock_exclusive, 'test')
assert_raises(ImageExists, self.image.lock_shared, '', '')
assert_raises(ImageBusy, self.image.lock_shared, 'foo', '')
self.image.unlock('')
def test_list_lockers(self):
eq([], self.image.list_lockers())
self.image.lock_exclusive('test')
lockers = self.image.list_lockers()
eq(1, len(lockers['lockers']))
_, cookie, _ = lockers['lockers'][0]
eq(cookie, 'test')
eq('', lockers['tag'])
assert lockers['exclusive']
self.image.unlock('test')
eq([], self.image.list_lockers())
num_shared = 10
for i in xrange(num_shared):
self.image.lock_shared(str(i), 'tag')
lockers = self.image.list_lockers()
eq('tag', lockers['tag'])
assert not lockers['exclusive']
eq(num_shared, len(lockers['lockers']))
cookies = sorted(map(lambda x: x[1], lockers['lockers']))
for i in xrange(num_shared):
eq(str(i), cookies[i])
self.image.unlock(str(i))
eq([], self.image.list_lockers())
def test_diff_iterate(self):
check_diff(self.image, 0, IMG_SIZE, None, [])
self.image.write('a' * 256, 0)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 256, True)])
self.image.write('b' * 256, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.discard(128, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.create_snap('snap1')
self.image.discard(0, 1 << IMG_ORDER)
self.image.create_snap('snap2')
self.image.set_snap('snap2')
check_diff(self.image, 0, IMG_SIZE, 'snap1', [(0, 512, False)])
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
class TestClone(object):
@require_features([RBD_FEATURE_LAYERING])
def setUp(self):
global ioctx
global features
self.rbd = RBD()
create_image()
self.image = Image(ioctx, IMG_NAME)
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2)
self.image.create_snap("snap1")
global features
self.image.protect_snap("snap1")
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone", features)
self.clone = Image(ioctx, "clone")
def tearDown(self):
global ioctx
self.clone.close()
self.rbd.remove(ioctx, "clone")
self.image.unprotect_snap("snap1")
self.image.remove_snap("snap1")
self.image.close()
remove_image()
def test_unprotected(self):
self.image.create_snap("snap2")
global features
assert_raises(InvalidArgument, self.rbd.clone, ioctx, IMG_NAME, "snap2", ioctx, "clone2", features)
self.image.remove_snap("snap2")
def test_unprotect_with_children(self):
global features
# can't remove a snapshot that has dependent clones
assert_raises(ImageBusy, self.image.remove_snap, "snap1")
# validate parent info of clone created by TestClone.setUp
(pool, image, snap) = self.clone.parent_info()
eq(pool, "rbd")
eq(image, IMG_NAME)
eq(snap, "snap1")
# create a new pool...
rados.create_pool("rbd2")
other_ioctx = rados.open_ioctx("rbd2")
# ...with a clone of the same parent
self.rbd.clone(ioctx, IMG_NAME, "snap1", other_ioctx, "other_clone", features)
self.other_clone = Image(other_ioctx, "other_clone")
# validate its parent info
(pool, image, snap) = self.other_clone.parent_info()
eq(pool, "rbd")
eq(image, IMG_NAME)
eq(snap, "snap1")
# can't unprotect snap with children
assert_raises(ImageBusy, self.image.unprotect_snap, "snap1")
# 2 children, check that cannot remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, "snap1")
# close and remove other pool's clone
self.other_clone.close()
self.rbd.remove(other_ioctx, "other_clone")
# check that we cannot yet remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, "snap1")
other_ioctx.close()
rados.delete_pool("rbd2")
# unprotect, remove parent snap happen in cleanup, and should succeed
def test_stat(self):
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info["size"], image_info["size"])
eq(clone_info["size"], self.clone.overlap())
def test_resize_stat(self):
self.clone.resize(IMG_SIZE / 2)
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info["size"], IMG_SIZE / 2)
eq(image_info["size"], IMG_SIZE)
eq(self.clone.overlap(), IMG_SIZE / 2)
self.clone.resize(IMG_SIZE * 2)
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info["size"], IMG_SIZE * 2)
eq(image_info["size"], IMG_SIZE)
eq(self.clone.overlap(), IMG_SIZE / 2)
def test_resize_io(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
self.clone.resize(IMG_SIZE / 2 + 128)
child_data = self.clone.read(IMG_SIZE / 2, 128)
eq(child_data, parent_data[:128])
self.clone.resize(IMG_SIZE)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data[:128] + ("\0" * 128))
self.clone.resize(IMG_SIZE / 2 + 1)
child_data = self.clone.read(IMG_SIZE / 2, 1)
eq(child_data, parent_data[0])
self.clone.resize(0)
self.clone.resize(IMG_SIZE)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, "\0" * 256)
def test_read(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data)
def test_write(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
new_data = rand_data(256)
self.clone.write(new_data, IMG_SIZE / 2 + 256)
child_data = self.clone.read(IMG_SIZE / 2 + 256, 256)
eq(child_data, new_data)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data)
parent_data = self.image.read(IMG_SIZE / 2 + 256, 256)
eq(parent_data, "\0" * 256)
def test_list_children(self):
global ioctx
global features
self.image.set_snap("snap1")
eq(self.image.list_children(), [("rbd", "clone")])
self.clone.close()
self.rbd.remove(ioctx, "clone")
eq(self.image.list_children(), [])
expected_children = []
for i in xrange(10):
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone%d" % i, features)
expected_children.append(("rbd", "clone%d" % i))
eq(self.image.list_children(), expected_children)
for i in xrange(10):
self.rbd.remove(ioctx, "clone%d" % i)
expected_children.pop(0)
eq(self.image.list_children(), expected_children)
eq(self.image.list_children(), [])
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone", features)
eq(self.image.list_children(), [("rbd", "clone")])
self.clone = Image(ioctx, "clone")
def test_flatten_errors(self):
# test that we can't flatten a non-clone
assert_raises(InvalidArgument, self.image.flatten)
# test that we can't flatten a snapshot
self.clone.create_snap("snap2")
self.clone.set_snap("snap2")
assert_raises(ReadOnlyImage, self.clone.flatten)
self.clone.remove_snap("snap2")
def check_flatten_with_order(self, new_order):
global ioctx
global features
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone2", features, new_order)
# with Image(ioctx, 'clone2') as clone:
clone2 = Image(ioctx, "clone2")
clone2.flatten()
eq(clone2.overlap(), 0)
clone2.close()
self.rbd.remove(ioctx, "clone2")
# flatten after resizing to non-block size
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone2", features, new_order)
with Image(ioctx, "clone2") as clone:
clone.resize(IMG_SIZE / 2 - 1)
clone.flatten()
eq(0, clone.overlap())
self.rbd.remove(ioctx, "clone2")
# flatten after resizing to non-block size
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone2", features, new_order)
with Image(ioctx, "clone2") as clone:
clone.resize(IMG_SIZE / 2 + 1)
clone.flatten()
eq(clone.overlap(), 0)
self.rbd.remove(ioctx, "clone2")
def test_flatten_basic(self):
self.check_flatten_with_order(IMG_ORDER)
def test_flatten_smaller_order(self):
self.check_flatten_with_order(IMG_ORDER - 2)
def test_flatten_larger_order(self):
self.check_flatten_with_order(IMG_ORDER + 2)
def test_flatten_drops_cache(self):
global ioctx
global features
self.rbd.clone(ioctx, IMG_NAME, "snap1", ioctx, "clone2", features, IMG_ORDER)
with Image(ioctx, "clone2") as clone:
with Image(ioctx, "clone2") as clone2:
# cache object non-existence
data = clone.read(IMG_SIZE / 2, 256)
clone2_data = clone2.read(IMG_SIZE / 2, 256)
eq(data, clone2_data)
clone.flatten()
assert_raises(ImageNotFound, clone.parent_info)
assert_raises(ImageNotFound, clone2.parent_info)
after_flatten = clone.read(IMG_SIZE / 2, 256)
eq(data, after_flatten)
after_flatten = clone2.read(IMG_SIZE / 2, 256)
eq(data, after_flatten)
self.rbd.remove(ioctx, "clone2")
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, image_name)
class TestImage(object):
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, IMG_NAME)
def tearDown(self):
self.image.close()
remove_image()
def test_stat(self):
info = self.image.stat()
check_stat(info, IMG_SIZE, IMG_ORDER)
def test_write(self):
data = rand_data(256)
self.image.write(data, 0)
def test_read(self):
data = self.image.read(0, 20)
eq(data, '\0' * 20)
def test_large_write(self):
data = rand_data(IMG_SIZE)
self.image.write(data, 0)
def test_large_read(self):
data = self.image.read(0, IMG_SIZE)
eq(data, '\0' * IMG_SIZE)
def test_write_read(self):
data = rand_data(256)
offset = 50
self.image.write(data, offset)
read = self.image.read(offset, 256)
eq(data, read)
def test_read_bad_offset(self):
assert_raises(InvalidArgument, self.image.read, IMG_SIZE + 1, IMG_SIZE)
def test_resize(self):
new_size = IMG_SIZE * 2
self.image.resize(new_size)
info = self.image.stat()
check_stat(info, new_size, IMG_ORDER)
def test_size(self):
eq(IMG_SIZE, self.image.size())
self.image.create_snap('snap1')
new_size = IMG_SIZE * 2
self.image.resize(new_size)
eq(new_size, self.image.size())
self.image.create_snap('snap2')
self.image.set_snap('snap2')
eq(new_size, self.image.size())
self.image.set_snap('snap1')
eq(IMG_SIZE, self.image.size())
self.image.set_snap(None)
eq(new_size, self.image.size())
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_resize_down(self):
new_size = IMG_SIZE / 2
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2);
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE / 2, 256)
eq('\0' * 256, read)
def test_resize_bytes(self):
new_size = IMG_SIZE / 2 - 5
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2 - 10);
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE / 2 - 10, 5)
eq(data[:5], read)
read = self.image.read(IMG_SIZE / 2 - 5, 251)
eq('\0' * 251, read)
def test_copy(self):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
self.image.copy(ioctx, IMG_NAME + '2')
assert_raises(ImageExists, self.image.copy, ioctx, IMG_NAME + '2')
copy = Image(ioctx, IMG_NAME + '2')
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, IMG_NAME + '2')
eq(data, copy_data)
def test_create_snap(self):
global ioctx
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
at_snapshot = Image(ioctx, IMG_NAME, 'snap1')
snap_data = at_snapshot.read(0, 256)
at_snapshot.close()
eq(snap_data, '\0' * 256)
self.image.remove_snap('snap1')
def test_list_snaps(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.create_snap('snap2')
eq(['snap1', 'snap2'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_remove_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap('snap1')
eq(['snap1'], map(lambda snap: snap['name'], self.image.list_snaps()))
self.image.remove_snap('snap1')
eq([], list(self.image.list_snaps()))
@require_features([RBD_FEATURE_LAYERING])
def test_protect_snap(self):
self.image.create_snap('snap1')
assert(not self.image.is_protected_snap('snap1'))
self.image.protect_snap('snap1')
assert(self.image.is_protected_snap('snap1'))
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
self.image.unprotect_snap('snap1')
assert(not self.image.is_protected_snap('snap1'))
self.image.remove_snap('snap1')
assert_raises(ImageNotFound, self.image.unprotect_snap, 'snap1')
assert_raises(ImageNotFound, self.image.is_protected_snap, 'snap1')
def test_remove_with_snap(self):
self.image.create_snap('snap1')
assert_raises(ImageHasSnapshots, remove_image)
self.image.remove_snap('snap1')
def test_remove_with_watcher(self):
assert_raises(ImageBusy, remove_image)
def test_rollback_to_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_rollback_to_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_rollback_with_resize(self):
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, data)
new_size = IMG_SIZE * 2
self.image.resize(new_size)
check_stat(self.image.stat(), new_size, IMG_ORDER)
self.image.write(data, new_size - 256)
self.image.create_snap('snap2')
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.rollback_to_snap('snap1')
check_stat(self.image.stat(), IMG_SIZE, IMG_ORDER)
assert_raises(InvalidArgument, self.image.read, new_size - 256, 256)
self.image.rollback_to_snap('snap2')
check_stat(self.image.stat(), new_size, IMG_ORDER)
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.remove_snap('snap1')
self.image.remove_snap('snap2')
def test_set_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_set_no_snap(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap('snap1')
def test_set_snap_sparse(self):
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
self.image.remove_snap('snap1')
def test_many_snaps(self):
num_snaps = 200
for i in xrange(num_snaps):
self.image.create_snap(str(i))
snaps = sorted(self.image.list_snaps(),
key=lambda snap: int(snap['name']))
eq(len(snaps), num_snaps)
for i, snap in enumerate(snaps):
eq(snap['size'], IMG_SIZE)
eq(snap['name'], str(i))
for i in xrange(num_snaps):
self.image.remove_snap(str(i))
def test_set_snap_deleted(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
self.image.remove_snap('snap1')
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
def test_set_snap_recreated(self):
self.image.write('\0' * 256, 0)
self.image.create_snap('snap1')
read = self.image.read(0, 256)
eq(read, '\0' * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap('snap1')
self.image.remove_snap('snap1')
self.image.create_snap('snap1')
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap('snap1')
def test_lock_unlock(self):
assert_raises(ImageNotFound, self.image.unlock, '')
self.image.lock_exclusive('')
assert_raises(ImageExists, self.image.lock_exclusive, '')
assert_raises(ImageBusy, self.image.lock_exclusive, 'test')
assert_raises(ImageExists, self.image.lock_shared, '', '')
assert_raises(ImageBusy, self.image.lock_shared, 'foo', '')
self.image.unlock('')
def test_list_lockers(self):
eq([], self.image.list_lockers())
self.image.lock_exclusive('test')
lockers = self.image.list_lockers()
eq(1, len(lockers['lockers']))
_, cookie, _ = lockers['lockers'][0]
eq(cookie, 'test')
eq('', lockers['tag'])
assert lockers['exclusive']
self.image.unlock('test')
eq([], self.image.list_lockers())
num_shared = 10
for i in xrange(num_shared):
self.image.lock_shared(str(i), 'tag')
lockers = self.image.list_lockers()
eq('tag', lockers['tag'])
assert not lockers['exclusive']
eq(num_shared, len(lockers['lockers']))
cookies = sorted(map(lambda x: x[1], lockers['lockers']))
for i in xrange(num_shared):
eq(str(i), cookies[i])
self.image.unlock(str(i))
eq([], self.image.list_lockers())
class TestImage(object):
def setUp(self):
self.rbd = RBD()
create_image()
self.image = Image(ioctx, image_name)
def tearDown(self):
self.image.close()
remove_image()
@require_new_format()
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_update_features(self):
features = self.image.features()
self.image.update_features(RBD_FEATURE_EXCLUSIVE_LOCK, True)
eq(features | RBD_FEATURE_EXCLUSIVE_LOCK, self.image.features())
@require_features([RBD_FEATURE_STRIPINGV2])
def test_create_with_params(self):
global features
image_name = get_temp_image_name()
order = 20
stripe_unit = 1 << 20
stripe_count = 10
self.rbd.create(ioctx, image_name, IMG_SIZE, order, False, features, stripe_unit, stripe_count)
image = Image(ioctx, image_name)
info = image.stat()
check_stat(info, IMG_SIZE, order)
eq(image.features(), features)
eq(image.stripe_unit(), stripe_unit)
eq(image.stripe_count(), stripe_count)
image.close()
RBD().remove(ioctx, image_name)
def test_invalidate_cache(self):
self.image.write(b"abc", 0)
eq(b"abc", self.image.read(0, 3))
self.image.invalidate_cache()
eq(b"abc", self.image.read(0, 3))
def test_stat(self):
info = self.image.stat()
check_stat(info, IMG_SIZE, IMG_ORDER)
def test_flags(self):
flags = self.image.flags()
eq(0, flags)
def test_image_auto_close(self):
image = Image(ioctx, image_name)
def test_write(self):
data = rand_data(256)
self.image.write(data, 0)
def test_write_with_fadvise_flags(self):
data = rand_data(256)
self.image.write(data, 0, LIBRADOS_OP_FLAG_FADVISE_DONTNEED)
self.image.write(data, 0, LIBRADOS_OP_FLAG_FADVISE_NOCACHE)
def test_read(self):
data = self.image.read(0, 20)
eq(data, b"\0" * 20)
def test_read_with_fadvise_flags(self):
data = self.image.read(0, 20, LIBRADOS_OP_FLAG_FADVISE_DONTNEED)
eq(data, b"\0" * 20)
data = self.image.read(0, 20, LIBRADOS_OP_FLAG_FADVISE_RANDOM)
eq(data, b"\0" * 20)
def test_large_write(self):
data = rand_data(IMG_SIZE)
self.image.write(data, 0)
def test_large_read(self):
data = self.image.read(0, IMG_SIZE)
eq(data, b"\0" * IMG_SIZE)
def test_write_read(self):
data = rand_data(256)
offset = 50
self.image.write(data, offset)
read = self.image.read(offset, 256)
eq(data, read)
def test_read_bad_offset(self):
assert_raises(InvalidArgument, self.image.read, IMG_SIZE + 1, IMG_SIZE)
def test_resize(self):
new_size = IMG_SIZE * 2
self.image.resize(new_size)
info = self.image.stat()
check_stat(info, new_size, IMG_ORDER)
def test_size(self):
eq(IMG_SIZE, self.image.size())
self.image.create_snap("snap1")
new_size = IMG_SIZE * 2
self.image.resize(new_size)
eq(new_size, self.image.size())
self.image.create_snap("snap2")
self.image.set_snap("snap2")
eq(new_size, self.image.size())
self.image.set_snap("snap1")
eq(IMG_SIZE, self.image.size())
self.image.set_snap(None)
eq(new_size, self.image.size())
self.image.remove_snap("snap1")
self.image.remove_snap("snap2")
def test_resize_down(self):
new_size = IMG_SIZE // 2
data = rand_data(256)
self.image.write(data, IMG_SIZE // 2)
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE // 2, 256)
eq(b"\0" * 256, read)
def test_resize_bytes(self):
new_size = IMG_SIZE // 2 - 5
data = rand_data(256)
self.image.write(data, IMG_SIZE // 2 - 10)
self.image.resize(new_size)
self.image.resize(IMG_SIZE)
read = self.image.read(IMG_SIZE // 2 - 10, 5)
eq(data[:5], read)
read = self.image.read(IMG_SIZE // 2 - 5, 251)
eq(b"\0" * 251, read)
def _test_copy(self, features=None, order=None, stripe_unit=None, stripe_count=None):
global ioctx
data = rand_data(256)
self.image.write(data, 256)
image_name = get_temp_image_name()
if features is None:
self.image.copy(ioctx, image_name)
elif order is None:
self.image.copy(ioctx, image_name, features)
elif stripe_unit is None:
self.image.copy(ioctx, image_name, features, order)
elif stripe_count is None:
self.image.copy(ioctx, image_name, features, order, stripe_unit)
else:
self.image.copy(ioctx, image_name, features, order, stripe_unit, stripe_count)
assert_raises(ImageExists, self.image.copy, ioctx, image_name)
copy = Image(ioctx, image_name)
copy_data = copy.read(256, 256)
copy.close()
self.rbd.remove(ioctx, image_name)
eq(data, copy_data)
def test_copy(self):
self._test_copy()
def test_copy2(self):
self._test_copy(self.image.features(), self.image.stat()["order"])
@require_features([RBD_FEATURE_STRIPINGV2])
def test_copy3(self):
global features
self._test_copy(features, self.image.stat()["order"], self.image.stripe_unit(), self.image.stripe_count())
def test_create_snap(self):
global ioctx
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
at_snapshot = Image(ioctx, image_name, "snap1")
snap_data = at_snapshot.read(0, 256)
at_snapshot.close()
eq(snap_data, b"\0" * 256)
self.image.remove_snap("snap1")
def test_list_snaps(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap("snap1")
eq(["snap1"], [snap["name"] for snap in self.image.list_snaps()])
self.image.create_snap("snap2")
eq(["snap1", "snap2"], [snap["name"] for snap in self.image.list_snaps()])
self.image.remove_snap("snap1")
self.image.remove_snap("snap2")
def test_list_snaps_iterator_auto_close(self):
self.image.create_snap("snap1")
self.image.list_snaps()
self.image.remove_snap("snap1")
def test_remove_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap("snap1")
eq(["snap1"], [snap["name"] for snap in self.image.list_snaps()])
self.image.remove_snap("snap1")
eq([], list(self.image.list_snaps()))
def test_rename_snap(self):
eq([], list(self.image.list_snaps()))
self.image.create_snap("snap1")
eq(["snap1"], [snap["name"] for snap in self.image.list_snaps()])
self.image.rename_snap("snap1", "snap1-rename")
eq(["snap1-rename"], [snap["name"] for snap in self.image.list_snaps()])
self.image.remove_snap("snap1-rename")
eq([], list(self.image.list_snaps()))
@require_features([RBD_FEATURE_LAYERING])
def test_protect_snap(self):
self.image.create_snap("snap1")
assert not self.image.is_protected_snap("snap1")
self.image.protect_snap("snap1")
assert self.image.is_protected_snap("snap1")
assert_raises(ImageBusy, self.image.remove_snap, "snap1")
self.image.unprotect_snap("snap1")
assert not self.image.is_protected_snap("snap1")
self.image.remove_snap("snap1")
assert_raises(ImageNotFound, self.image.unprotect_snap, "snap1")
assert_raises(ImageNotFound, self.image.is_protected_snap, "snap1")
@require_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_exclusive_lock(self):
assert_raises(ImageBusy, remove_image)
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_snap(self):
self.image.create_snap("snap1")
assert_raises(ImageHasSnapshots, remove_image)
self.image.remove_snap("snap1")
@blacklist_features([RBD_FEATURE_EXCLUSIVE_LOCK])
def test_remove_with_watcher(self):
data = rand_data(256)
self.image.write(data, 0)
assert_raises(ImageBusy, remove_image)
read = self.image.read(0, 256)
eq(read, data)
def test_rollback_to_snap(self):
self.image.write(b"\0" * 256, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
self.image.remove_snap("snap1")
def test_rollback_to_snap_sparse(self):
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.rollback_to_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
self.image.remove_snap("snap1")
def test_rollback_with_resize(self):
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, data)
new_size = IMG_SIZE * 2
self.image.resize(new_size)
check_stat(self.image.stat(), new_size, IMG_ORDER)
self.image.write(data, new_size - 256)
self.image.create_snap("snap2")
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.rollback_to_snap("snap1")
check_stat(self.image.stat(), IMG_SIZE, IMG_ORDER)
assert_raises(InvalidArgument, self.image.read, new_size - 256, 256)
self.image.rollback_to_snap("snap2")
check_stat(self.image.stat(), new_size, IMG_ORDER)
read = self.image.read(new_size - 256, 256)
eq(read, data)
self.image.remove_snap("snap1")
self.image.remove_snap("snap2")
def test_set_snap(self):
self.image.write(b"\0" * 256, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
self.image.remove_snap("snap1")
def test_set_no_snap(self):
self.image.write(b"\0" * 256, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap("snap1")
def test_set_snap_sparse(self):
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
self.image.remove_snap("snap1")
def test_many_snaps(self):
num_snaps = 200
for i in range(num_snaps):
self.image.create_snap(str(i))
snaps = sorted(self.image.list_snaps(), key=lambda snap: int(snap["name"]))
eq(len(snaps), num_snaps)
for i, snap in enumerate(snaps):
eq(snap["size"], IMG_SIZE)
eq(snap["name"], str(i))
for i in range(num_snaps):
self.image.remove_snap(str(i))
def test_set_snap_deleted(self):
self.image.write(b"\0" * 256, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap("snap1")
self.image.remove_snap("snap1")
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
def test_set_snap_recreated(self):
self.image.write(b"\0" * 256, 0)
self.image.create_snap("snap1")
read = self.image.read(0, 256)
eq(read, b"\0" * 256)
data = rand_data(256)
self.image.write(data, 0)
read = self.image.read(0, 256)
eq(read, data)
self.image.set_snap("snap1")
self.image.remove_snap("snap1")
self.image.create_snap("snap1")
assert_raises(ImageNotFound, self.image.read, 0, 256)
self.image.set_snap(None)
read = self.image.read(0, 256)
eq(read, data)
self.image.remove_snap("snap1")
def test_lock_unlock(self):
assert_raises(ImageNotFound, self.image.unlock, "")
self.image.lock_exclusive("")
assert_raises(ImageExists, self.image.lock_exclusive, "")
assert_raises(ImageBusy, self.image.lock_exclusive, "test")
assert_raises(ImageExists, self.image.lock_shared, "", "")
assert_raises(ImageBusy, self.image.lock_shared, "foo", "")
self.image.unlock("")
def test_list_lockers(self):
eq([], self.image.list_lockers())
self.image.lock_exclusive("test")
lockers = self.image.list_lockers()
eq(1, len(lockers["lockers"]))
_, cookie, _ = lockers["lockers"][0]
eq(cookie, "test")
eq("", lockers["tag"])
assert lockers["exclusive"]
self.image.unlock("test")
eq([], self.image.list_lockers())
num_shared = 10
for i in range(num_shared):
self.image.lock_shared(str(i), "tag")
lockers = self.image.list_lockers()
eq("tag", lockers["tag"])
assert not lockers["exclusive"]
eq(num_shared, len(lockers["lockers"]))
cookies = sorted(map(lambda x: x[1], lockers["lockers"]))
for i in range(num_shared):
eq(str(i), cookies[i])
self.image.unlock(str(i))
eq([], self.image.list_lockers())
def test_diff_iterate(self):
check_diff(self.image, 0, IMG_SIZE, None, [])
self.image.write(b"a" * 256, 0)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 256, True)])
self.image.write(b"b" * 256, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.discard(128, 256)
check_diff(self.image, 0, IMG_SIZE, None, [(0, 512, True)])
self.image.create_snap("snap1")
self.image.discard(0, 1 << IMG_ORDER)
self.image.create_snap("snap2")
self.image.set_snap("snap2")
check_diff(self.image, 0, IMG_SIZE, "snap1", [(0, 512, False)])
self.image.remove_snap("snap1")
self.image.remove_snap("snap2")
class TestClone(object):
@require_features([RBD_FEATURE_LAYERING])
def setUp(self):
global ioctx
global features
self.rbd = RBD()
create_image()
self.image = Image(ioctx, IMG_NAME)
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2)
self.image.create_snap('snap1')
global features
self.image.protect_snap('snap1')
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone', features)
self.clone = Image(ioctx, 'clone')
def tearDown(self):
global ioctx
self.clone.close()
self.rbd.remove(ioctx, 'clone')
self.image.unprotect_snap('snap1')
self.image.remove_snap('snap1')
self.image.close()
remove_image()
def test_unprotected(self):
self.image.create_snap('snap2')
global features
assert_raises(InvalidArgument, self.rbd.clone, ioctx, IMG_NAME, 'snap2', ioctx, 'clone2', features)
self.image.remove_snap('snap2')
def test_unprotect_with_children(self):
global features
# can't remove a snapshot that has dependent clones
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
# validate parent info of clone created by TestClone.setUp
(pool, image, snap) = self.clone.parent_info()
eq(pool, 'rbd')
eq(image, IMG_NAME)
eq(snap, 'snap1')
# create a new pool...
rados.create_pool('rbd2')
other_ioctx = rados.open_ioctx('rbd2')
# ...with a clone of the same parent
self.rbd.clone(ioctx, IMG_NAME, 'snap1', other_ioctx, 'other_clone', features)
self.other_clone = Image(other_ioctx, 'other_clone')
# validate its parent info
(pool, image, snap) = self.other_clone.parent_info()
eq(pool, 'rbd')
eq(image, IMG_NAME)
eq(snap, 'snap1')
# can't unprotect snap with children
assert_raises(ImageBusy, self.image.unprotect_snap, 'snap1')
# 2 children, check that cannot remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
# close and remove other pool's clone
self.other_clone.close()
self.rbd.remove(other_ioctx, 'other_clone')
# check that we cannot yet remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
other_ioctx.close()
rados.delete_pool('rbd2')
# unprotect, remove parent snap happen in cleanup, and should succeed
def test_stat(self):
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], image_info['size'])
eq(clone_info['size'], self.clone.overlap())
def test_resize_stat(self):
self.clone.resize(IMG_SIZE / 2)
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], IMG_SIZE / 2)
eq(image_info['size'], IMG_SIZE)
eq(self.clone.overlap(), IMG_SIZE / 2)
self.clone.resize(IMG_SIZE * 2)
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], IMG_SIZE * 2)
eq(image_info['size'], IMG_SIZE)
eq(self.clone.overlap(), IMG_SIZE / 2)
def test_resize_io(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
self.clone.resize(IMG_SIZE / 2 + 128)
child_data = self.clone.read(IMG_SIZE / 2, 128)
eq(child_data, parent_data[:128])
self.clone.resize(IMG_SIZE)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data[:128] + ('\0' * 128))
self.clone.resize(IMG_SIZE / 2 + 1)
child_data = self.clone.read(IMG_SIZE / 2, 1)
eq(child_data, parent_data[0])
self.clone.resize(0)
self.clone.resize(IMG_SIZE)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, '\0' * 256)
def test_read(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data)
def test_write(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
new_data = rand_data(256)
self.clone.write(new_data, IMG_SIZE / 2 + 256)
child_data = self.clone.read(IMG_SIZE / 2 + 256, 256)
eq(child_data, new_data)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data)
parent_data = self.image.read(IMG_SIZE / 2 + 256, 256)
eq(parent_data, '\0' * 256)
def test_list_children(self):
global ioctx
global features
self.image.set_snap('snap1')
eq(self.image.list_children(), [('rbd', 'clone')])
self.rbd.remove(ioctx, 'clone')
eq(self.image.list_children(), [])
expected_children = []
for i in xrange(10):
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone%d' % i, features)
expected_children.append(('rbd', 'clone%d' % i))
eq(self.image.list_children(), expected_children)
for i in xrange(10):
self.rbd.remove(ioctx, 'clone%d' % i)
expected_children.pop(0)
eq(self.image.list_children(), expected_children)
eq(self.image.list_children(), [])
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone', features)
eq(self.image.list_children(), [('rbd', 'clone')])
class TestClone(object):
@require_features([RBD_FEATURE_LAYERING])
def setUp(self):
global ioctx
global features
self.rbd = RBD()
create_image()
self.image = Image(ioctx, IMG_NAME)
data = rand_data(256)
self.image.write(data, IMG_SIZE / 2)
self.image.create_snap('snap1')
global features
self.image.protect_snap('snap1')
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone', features)
self.clone = Image(ioctx, 'clone')
def tearDown(self):
global ioctx
self.clone.close()
self.rbd.remove(ioctx, 'clone')
self.image.unprotect_snap('snap1')
self.image.remove_snap('snap1')
self.image.close()
remove_image()
def test_unprotected(self):
self.image.create_snap('snap2')
global features
assert_raises(InvalidArgument, self.rbd.clone, ioctx, IMG_NAME,
'snap2', ioctx, 'clone2', features)
self.image.remove_snap('snap2')
def test_unprotect_with_children(self):
global features
# can't remove a snapshot that has dependent clones
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
# validate parent info of clone created by TestClone.setUp
(pool, image, snap) = self.clone.parent_info()
eq(pool, 'rbd')
eq(image, IMG_NAME)
eq(snap, 'snap1')
# create a new pool...
rados.create_pool('rbd2')
other_ioctx = rados.open_ioctx('rbd2')
# ...with a clone of the same parent
self.rbd.clone(ioctx, IMG_NAME, 'snap1', other_ioctx, 'other_clone',
features)
self.other_clone = Image(other_ioctx, 'other_clone')
# validate its parent info
(pool, image, snap) = self.other_clone.parent_info()
eq(pool, 'rbd')
eq(image, IMG_NAME)
eq(snap, 'snap1')
# can't unprotect snap with children
assert_raises(ImageBusy, self.image.unprotect_snap, 'snap1')
# 2 children, check that cannot remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
# close and remove other pool's clone
self.other_clone.close()
self.rbd.remove(other_ioctx, 'other_clone')
# check that we cannot yet remove the parent snap
assert_raises(ImageBusy, self.image.remove_snap, 'snap1')
other_ioctx.close()
rados.delete_pool('rbd2')
# unprotect, remove parent snap happen in cleanup, and should succeed
def test_stat(self):
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], image_info['size'])
eq(clone_info['size'], self.clone.overlap())
def test_resize_stat(self):
self.clone.resize(IMG_SIZE / 2)
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], IMG_SIZE / 2)
eq(image_info['size'], IMG_SIZE)
eq(self.clone.overlap(), IMG_SIZE / 2)
self.clone.resize(IMG_SIZE * 2)
image_info = self.image.stat()
clone_info = self.clone.stat()
eq(clone_info['size'], IMG_SIZE * 2)
eq(image_info['size'], IMG_SIZE)
eq(self.clone.overlap(), IMG_SIZE / 2)
def test_resize_io(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
self.clone.resize(IMG_SIZE / 2 + 128)
child_data = self.clone.read(IMG_SIZE / 2, 128)
eq(child_data, parent_data[:128])
self.clone.resize(IMG_SIZE)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data[:128] + ('\0' * 128))
self.clone.resize(IMG_SIZE / 2 + 1)
child_data = self.clone.read(IMG_SIZE / 2, 1)
eq(child_data, parent_data[0])
self.clone.resize(0)
self.clone.resize(IMG_SIZE)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, '\0' * 256)
def test_read(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data)
def test_write(self):
parent_data = self.image.read(IMG_SIZE / 2, 256)
new_data = rand_data(256)
self.clone.write(new_data, IMG_SIZE / 2 + 256)
child_data = self.clone.read(IMG_SIZE / 2 + 256, 256)
eq(child_data, new_data)
child_data = self.clone.read(IMG_SIZE / 2, 256)
eq(child_data, parent_data)
parent_data = self.image.read(IMG_SIZE / 2 + 256, 256)
eq(parent_data, '\0' * 256)
def test_list_children(self):
global ioctx
global features
self.image.set_snap('snap1')
eq(self.image.list_children(), [('rbd', 'clone')])
self.clone.close()
self.rbd.remove(ioctx, 'clone')
eq(self.image.list_children(), [])
expected_children = []
for i in xrange(10):
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone%d' % i,
features)
expected_children.append(('rbd', 'clone%d' % i))
eq(self.image.list_children(), expected_children)
for i in xrange(10):
self.rbd.remove(ioctx, 'clone%d' % i)
expected_children.pop(0)
eq(self.image.list_children(), expected_children)
eq(self.image.list_children(), [])
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone', features)
eq(self.image.list_children(), [('rbd', 'clone')])
self.clone = Image(ioctx, 'clone')
def test_flatten_errors(self):
# test that we can't flatten a non-clone
assert_raises(InvalidArgument, self.image.flatten)
# test that we can't flatten a snapshot
self.clone.create_snap('snap2')
self.clone.set_snap('snap2')
assert_raises(ReadOnlyImage, self.clone.flatten)
self.clone.remove_snap('snap2')
def check_flatten_with_order(self, new_order):
global ioctx
global features
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone2', features,
new_order)
#with Image(ioctx, 'clone2') as clone:
clone2 = Image(ioctx, 'clone2')
clone2.flatten()
eq(clone2.overlap(), 0)
clone2.close()
self.rbd.remove(ioctx, 'clone2')
# flatten after resizing to non-block size
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone2', features,
new_order)
with Image(ioctx, 'clone2') as clone:
clone.resize(IMG_SIZE / 2 - 1)
clone.flatten()
eq(0, clone.overlap())
self.rbd.remove(ioctx, 'clone2')
# flatten after resizing to non-block size
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone2', features,
new_order)
with Image(ioctx, 'clone2') as clone:
clone.resize(IMG_SIZE / 2 + 1)
clone.flatten()
eq(clone.overlap(), 0)
self.rbd.remove(ioctx, 'clone2')
def test_flatten_basic(self):
self.check_flatten_with_order(IMG_ORDER)
def test_flatten_smaller_order(self):
self.check_flatten_with_order(IMG_ORDER - 2)
def test_flatten_larger_order(self):
self.check_flatten_with_order(IMG_ORDER + 2)
def test_flatten_drops_cache(self):
global ioctx
global features
self.rbd.clone(ioctx, IMG_NAME, 'snap1', ioctx, 'clone2', features,
IMG_ORDER)
with Image(ioctx, 'clone2') as clone:
with Image(ioctx, 'clone2') as clone2:
# cache object non-existence
data = clone.read(IMG_SIZE / 2, 256)
clone2_data = clone2.read(IMG_SIZE / 2, 256)
eq(data, clone2_data)
clone.flatten()
assert_raises(ImageNotFound, clone.parent_info)
assert_raises(ImageNotFound, clone2.parent_info)
after_flatten = clone.read(IMG_SIZE / 2, 256)
eq(data, after_flatten)
after_flatten = clone2.read(IMG_SIZE / 2, 256)
eq(data, after_flatten)
self.rbd.remove(ioctx, 'clone2')