def test_write_transfer(self):
checksum = self.checksum()
test_data = ('1234' * 1024)[:-10]
size = len(test_data)
meta_chunk = self.meta_chunk()
nb = len(meta_chunk)
resps = [201] * nb
source = StringIO(test_data)
put_reqs = defaultdict(lambda: {'parts': []})
def cb_body(conn_id, part):
put_reqs[conn_id]['parts'].append(part)
with set_http_connect(*resps, cb_body=cb_body):
handler = ReplicatedChunkWriteHandler(
self.sysmeta, meta_chunk, checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
final_checksum = self.checksum(test_data).hexdigest()
self.assertEqual(len(test_data), bytes_transferred)
self.assertEqual(final_checksum, checksum)
bodies = []
for conn_id, info in put_reqs.items():
body, trailers = decode_chunked_body(''.join(info['parts']))
# TODO check trailers?
bodies.append(body)
self.assertEqual(len(bodies), nb)
for body in bodies:
self.assertEqual(len(test_data), len(body))
self.assertEqual(self.checksum(body).hexdigest(), final_checksum)
def test_write_timeout(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
resps = [201] * (len(meta_chunk) - 1)
resps.append(Timeout(1.0))
with set_http_connect(*resps):
handler = ReplicatedChunkWriteHandler(self.sysmeta, meta_chunk,
checksum,
self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), len(meta_chunk) - 1)
for i in range(len(meta_chunk) - 1):
self.assertEqual(chunks[i].get('error'), None)
# # JFS: starting at branche 3.x, it has been preferred to save only
# # the chunks that succeeded.
# self.assertEqual(
# chunks[len(meta_chunk) - 1].get('error'), '1.0 second')
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_CHECKSUM)
def test_write_transfer(self):
checksum = self.checksum()
test_data = (b'1234' * 1024)[:-10]
size = len(test_data)
meta_chunk = self.meta_chunk()
nb = len(meta_chunk)
resps = [201] * nb
source = BytesIO(test_data)
put_reqs = defaultdict(lambda: {'parts': []})
def cb_body(conn_id, part):
put_reqs[conn_id]['parts'].append(part)
with set_http_connect(*resps, cb_body=cb_body):
handler = ReplicatedMetachunkWriter(
self.sysmeta, meta_chunk, checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
final_checksum = self.checksum(test_data).hexdigest()
self.assertEqual(len(test_data), bytes_transferred)
self.assertEqual(final_checksum, checksum)
bodies = []
for conn_id, info in put_reqs.items():
body, trailers = decode_chunked_body(b''.join(info['parts']))
# TODO check trailers?
bodies.append(body)
self.assertEqual(len(bodies), nb)
for body in bodies:
self.assertEqual(len(test_data), len(body))
self.assertEqual(self.checksum(body).hexdigest(), final_checksum)
def test_write_quorum_success(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
quorum_size = self.storage_method.quorum
resps = [201] * quorum_size
resps += [500] * (len(meta_chunk) - quorum_size)
with set_http_connect(*resps):
handler = ReplicatedMetachunkWriter(
self.sysmeta, meta_chunk, checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), len(meta_chunk)-1)
for i in range(quorum_size):
self.assertEqual(chunks[i].get('error'), None)
# # JFS: starting at branche 3.x, it has been preferred to save
# # only the chunks that succeeded.
# for i in xrange(quorum_size, len(meta_chunk)):
# self.assertEqual(chunks[i].get('error'), 'HTTP 500')
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_MD5)
def test_write_connect_errors(self):
test_cases = [
{
'error': green.ConnectionTimeout(1.0),
'msg': 'connect: Connection timeout 1.0 second'
},
{
'error': Exception('failure'),
'msg': 'connect: failure'
},
]
for test in test_cases:
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + \
self.storage_method.ec_nb_parity
resps = [201] * (nb - 1)
# Put the error in the middle to mess with chunk indices
err_pos = random.randint(0, nb)
resps.insert(err_pos, test['error'])
with set_http_connect(*resps):
handler = EcMetachunkWriter(self.sysmeta,
self.meta_chunk_copy(), checksum,
self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(
source, size)
self.assertEqual(len(chunks), nb)
for i in range(nb - 1):
self.assertEqual(chunks[i].get('error'), None)
self.assertEqual(chunks[nb - 1].get('error'), test['msg'])
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_MD5)
def test_write_response_error(self):
test_cases = [
{
'error': green.ChunkWriteTimeout(1.0),
'msg': 'resp: Chunk write timeout 1.0 second'
},
{
'error': Exception('failure'),
'msg': 'resp: failure'
},
]
for test in test_cases:
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + \
self.storage_method.ec_nb_parity
resps = [201] * (nb - 1)
resps.append((100, test['error']))
with set_http_connect(*resps):
handler = EcMetachunkWriter(self.sysmeta,
self.meta_chunk_copy(), checksum,
self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(
source, size)
self.assertEqual(len(chunks), nb)
for i in range(nb - 1):
self.assertEqual(chunks[i].get('error'), None)
self.assertEqual(chunks[nb - 1].get('error'), test['msg'])
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_MD5)
def test_write_transfer(self):
checksum = self.checksum()
segment_size = self.storage_method.ec_segment_size
test_data = (b'1234' * segment_size)[:-10]
size = len(test_data)
test_data_checksum = self.checksum(test_data).hexdigest()
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * nb
source = BytesIO(test_data)
put_reqs = defaultdict(lambda: {'parts': []})
def cb_body(conn_id, part):
put_reqs[conn_id]['parts'].append(part)
# TODO test headers
with set_http_connect(*resps, cb_body=cb_body):
handler = EcMetachunkWriter(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(test_data), bytes_transferred)
self.assertEqual(checksum, self.checksum(test_data).hexdigest())
fragments = []
for conn_id, info in put_reqs.items():
body, trailers = decode_chunked_body(b''.join(info['parts']))
fragments.append(body)
metachunk_size = int(trailers[CHUNK_HEADERS['metachunk_size']])
metachunk_hash = trailers[CHUNK_HEADERS['metachunk_hash']]
self.assertEqual(metachunk_size, size)
self.assertEqual(metachunk_hash, test_data_checksum)
self.assertEqual(len(fragments), nb)
fragment_size = self.storage_method.ec_fragment_size
# retrieve segments
frags = []
for frag in fragments:
data = [
frag[x:x + fragment_size]
for x in range(0, len(frag), fragment_size)
]
frags.append(data)
fragments = zip(*frags)
final_data = b''
for frag in fragments:
self.assertEqual(len(frag), nb)
frag = list(frag)
final_data += self.storage_method.driver.decode(frag)
self.assertEqual(len(test_data), len(final_data))
self.assertEqual(test_data_checksum,
self.checksum(final_data).hexdigest())
def test_write_transfer(self):
checksum = self.checksum()
segment_size = self.storage_method.ec_segment_size
test_data = ('1234' * segment_size)[:-10]
size = len(test_data)
test_data_checksum = self.checksum(test_data).hexdigest()
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * nb
source = StringIO(test_data)
put_reqs = defaultdict(lambda: {'parts': []})
def cb_body(conn_id, part):
put_reqs[conn_id]['parts'].append(part)
# TODO test headers
with set_http_connect(*resps, cb_body=cb_body):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(test_data), bytes_transferred)
self.assertEqual(checksum, self.checksum(test_data).hexdigest())
fragments = []
for conn_id, info in put_reqs.items():
body, trailers = decode_chunked_body(''.join(info['parts']))
fragments.append(body)
metachunk_size = int(trailers[chunk_headers['metachunk_size']])
metachunk_hash = trailers[chunk_headers['metachunk_hash']]
self.assertEqual(metachunk_size, size)
self.assertEqual(metachunk_hash, test_data_checksum)
self.assertEqual(len(fragments), nb)
fragment_size = self.storage_method.ec_fragment_size
# retrieve segments
frags = []
for frag in fragments:
data = [frag[x:x + fragment_size]
for x in range(0, len(frag), fragment_size)]
frags.append(data)
fragments = zip(*frags)
final_data = ''
for frag in fragments:
self.assertEqual(len(frag), nb)
frag = list(frag)
final_data += self.storage_method.driver.decode(frag)
self.assertEqual(len(test_data), len(final_data))
self.assertEqual(
test_data_checksum, self.checksum(final_data).hexdigest())
def test_write_exception(self):
checksum = self.checksum()
source = empty_stream()
meta_chunk = self.meta_chunk()
size = CHUNK_SIZE
resps = [500] * len(meta_chunk)
with set_http_connect(*resps):
handler = ReplicatedChunkWriteHandler(
self.sysmeta, meta_chunk, checksum, self.storage_method)
self.assertRaises(exc.OioException, handler.stream, source, size)
def test_write_exception(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [500] * nb
with set_http_connect(*resps):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
self.assertRaises(exc.OioException, handler.stream, source, size)
def test_write_exception(self):
checksum = self.checksum()
source = empty_stream()
meta_chunk = self.meta_chunk()
size = CHUNK_SIZE
resps = [500] * len(meta_chunk)
with set_http_connect(*resps):
handler = ReplicatedMetachunkWriter(
self.sysmeta, meta_chunk, checksum, self.storage_method)
self.assertRaises(exc.OioException, handler.stream, source, size)
def test_write_exception(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [500] * nb
with set_http_connect(*resps):
handler = EcMetachunkWriter(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
self.assertRaises(exc.OioException, handler.stream, source, size)
def test_write_quorum_error(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
quorum_size = self.storage_method.quorum
resps = [500] * quorum_size
resps += [201] * (nb - quorum_size)
with set_http_connect(*resps):
handler = EcMetachunkWriter(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
self.assertRaises(exc.ServiceBusy, handler.stream, source, size)
def test_write_quorum_error(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
quorum_size = self.storage_method.quorum
resps = [500] * quorum_size
resps += [201] * (len(meta_chunk) - quorum_size)
with set_http_connect(*resps):
handler = ReplicatedChunkWriteHandler(
self.sysmeta, meta_chunk, checksum, self.storage_method)
self.assertRaises(exc.OioException, handler.stream, source, size)
def test_write_quorum_error(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
quorum_size = self.storage_method.quorum
resps = [500] * quorum_size
resps += [201] * (len(meta_chunk) - quorum_size)
with set_http_connect(*resps):
handler = ReplicatedMetachunkWriter(
self.sysmeta, meta_chunk, checksum, self.storage_method)
self.assertRaises(exc.OioException, handler.stream, source, size)
def test_write_simple(self):
checksum = self.checksum()
source = empty_stream()
meta_chunk = self.meta_chunk()
size = CHUNK_SIZE
resps = [201] * len(meta_chunk)
with set_http_connect(*resps):
handler = ReplicatedMetachunkWriter(self.sysmeta, meta_chunk,
checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), len(meta_chunk))
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_CHECKSUM)
def test_write_quorum_error(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
quorum_size = self.storage_method.quorum
resps = [500] * quorum_size
resps += [201] * (nb - quorum_size)
with set_http_connect(*resps):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
# TODO use specialized Exception
self.assertRaises(exc.OioException, handler.stream, source, size)
def test_write_quorum_error(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
quorum_size = self.storage_method.quorum
resps = [500] * quorum_size
resps += [201] * (nb - quorum_size)
with set_http_connect(*resps):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
# TODO use specialized Exception
self.assertRaises(exc.OioException, handler.stream, source, size)
def test_write_exception(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [500] * nb
with set_http_connect(*resps):
handler = EcMetachunkWriter(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
# From now on, exceptions happening during chunk upload are
# considered retryable, and thus will tell the caller the
# service was just too busy.
self.assertRaises(exc.ServiceBusy, handler.stream, source, size)
def test_write_simple(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * nb
with set_http_connect(*resps):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), nb)
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_CHECKSUM)
def test_write_simple(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * nb
with set_http_connect(*resps):
handler = EcMetachunkWriter(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), nb)
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_MD5)
def _test_write_checksum_algo(self, expected_checksum, **kwargs):
global_checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * nb
with set_http_connect(*resps):
handler = EcMetachunkWriter(self.sysmeta, self.meta_chunk(),
global_checksum, self.storage_method,
**kwargs)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(nb, len(chunks))
self.assertEqual(0, bytes_transferred)
self.assertEqual(expected_checksum, checksum)
def test_write_timeout_source(self):
class TestReader(object):
def read(self, size):
raise Timeout(1.0)
checksum = self.checksum()
source = TestReader()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * nb
with set_http_connect(*resps):
handler = EcMetachunkWriter(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
self.assertRaises(exc.OioTimeout, handler.stream, source, size)
def test_write_timeout_source(self):
class TestReader(object):
def read(self, size):
raise Timeout(1.0)
checksum = self.checksum()
source = TestReader()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * nb
with set_http_connect(*resps):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
self.assertRaises(Timeout, handler.stream, source,
size)
def test_write_simple(self):
checksum = self.checksum()
source = empty_stream()
meta_chunk = self.meta_chunk()
size = CHUNK_SIZE
resps = [201] * len(meta_chunk)
with set_http_connect(*resps):
handler = ReplicatedChunkWriteHandler(
self.sysmeta, meta_chunk, checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(
source, size)
self.assertEqual(len(chunks), len(meta_chunk))
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_CHECKSUM)
def test_write_error_source(self):
class TestReader(object):
def read(self, size):
raise IOError('failure')
checksum = self.checksum()
source = TestReader()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * nb
with set_http_connect(*resps):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
self.assertRaises(exc.SourceReadError, handler.stream, source,
size)
def test_write_timeout_source(self):
class TestReader(object):
def read(self, size):
raise Timeout(1.0)
checksum = self.checksum()
source = TestReader()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
nb = len(meta_chunk)
resps = [201] * nb
with set_http_connect(*resps):
handler = ReplicatedMetachunkWriter(self.sysmeta, meta_chunk,
checksum, self.storage_method)
self.assertRaises(exc.OioTimeout, handler.stream, source, size)
def test_write_exception_source(self):
class TestReader(object):
def read(self, size):
raise Exception('failure')
checksum = self.checksum()
source = TestReader()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * nb
with set_http_connect(*resps):
handler = EcMetachunkWriter(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
# TODO specialize exception
self.assertRaises(Exception, handler.stream, source, size)
def test_write_exception_source(self):
class TestReader(object):
def read(self, size):
raise Exception('failure')
checksum = self.checksum()
source = TestReader()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * nb
with set_http_connect(*resps):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
# TODO specialize exception
self.assertRaises(Exception, handler.stream, source,
size)
def _test_write_checksum_algo(self, expected_checksum, **kwargs):
global_checksum = self.checksum()
source = empty_stream()
meta_chunk = self.meta_chunk()
size = CHUNK_SIZE
resps = [201] * len(meta_chunk)
with set_http_connect(*resps, headers=kwargs.get('headers')):
handler = ReplicatedMetachunkWriter(
self.sysmeta, self.meta_chunk(), global_checksum,
self.storage_method, **kwargs)
bytes_transferred, checksum, chunks = \
handler.stream(source, size)
self.assertEqual(len(meta_chunk), len(chunks))
self.assertEqual(0, bytes_transferred)
self.assertEqual(expected_checksum, checksum)
def test_write_timeout_source(self):
class TestReader(object):
def read(self, size):
raise Timeout(1.0)
checksum = self.checksum()
source = TestReader()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
nb = len(meta_chunk)
resps = [201] * nb
with set_http_connect(*resps):
handler = ReplicatedChunkWriteHandler(
self.sysmeta, meta_chunk, checksum, self.storage_method)
self.assertRaises(Timeout, handler.stream, source,
size)
def test_write_exception_source(self):
class TestReader(object):
def read(self, size):
raise Exception('failure')
checksum = self.checksum()
source = TestReader()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
nb = len(meta_chunk)
resps = [201] * nb
with set_http_connect(*resps):
handler = ReplicatedMetachunkWriter(self.sysmeta, meta_chunk,
checksum, self.storage_method)
# TODO specialize exception
self.assertRaises(Exception, handler.stream, source, size)
def test_write_exception_source(self):
class TestReader(object):
def read(self, size):
raise Exception('failure')
checksum = self.checksum()
source = TestReader()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
nb = len(meta_chunk)
resps = [201] * nb
with set_http_connect(*resps):
handler = ReplicatedChunkWriteHandler(
self.sysmeta, meta_chunk, checksum, self.storage_method)
# TODO specialize exception
self.assertRaises(Exception, handler.stream, source,
size)
def test_read(self):
segment_size = self.storage_method.ec_segment_size
data = ('1234' * segment_size)[:-10]
d = [data[x:x + segment_size]
for x in range(0, len(data), segment_size)]
fragmented_data = []
for c in d:
fragments = self.storage_method.driver.encode(c)
if not fragments:
break
fragmented_data.append(fragments)
result = ''
for fragment_data in fragmented_data:
result += self.storage_method.driver.decode(
fragment_data)
self.assertEqual(len(data), len(result))
self.assertEqual(data, result)
chunk_fragments = list(zip(*fragmented_data))
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
self.assertEqual(len(chunk_fragments), nb)
chunks_resps = [(200, ''.join(chunk_fragments[i]))
for i in range(self.storage_method.ec_nb_data)]
resps, body_iter = zip(*chunks_resps)
meta_start = None
meta_end = None
headers = {}
meta_chunk = self.meta_chunk()
meta_chunk[0]['size'] = len(data)
with set_http_connect(*resps, body_iter=body_iter):
handler = ECChunkDownloadHandler(self.storage_method,
meta_chunk, meta_start,
meta_end, headers)
stream = handler.get_stream()
body = ''
for part in stream:
for body_chunk in part['iter']:
body += body_chunk
self.assertEqual(len(data), len(body))
self.assertEqual(data, body)
def test_write_error_source(self):
class TestReader(object):
def read(self, size):
raise IOError('failure')
checksum = self.checksum()
source = TestReader()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
nb = len(meta_chunk)
resps = [201] * nb
with set_http_connect(*resps):
handler = ReplicatedChunkWriteHandler(self.sysmeta, meta_chunk,
checksum,
self.storage_method)
self.assertRaises(exc.SourceReadError, handler.stream, source,
size)
def test_read(self):
segment_size = self.storage_method.ec_segment_size
data = (b'1234' * segment_size)[:-10]
d = [
data[x:x + segment_size] for x in range(0, len(data), segment_size)
]
fragmented_data = []
for c in d:
fragments = self.storage_method.driver.encode(c)
if not fragments:
break
fragmented_data.append(fragments)
result = b''
for fragment_data in fragmented_data:
result += self.storage_method.driver.decode(fragment_data)
self.assertEqual(len(data), len(result))
self.assertEqual(data, result)
chunk_fragments = list(zip(*fragmented_data))
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
self.assertEqual(len(chunk_fragments), nb)
chunks_resps = [(200, b''.join(chunk_fragments[i]))
for i in range(self.storage_method.ec_nb_data)]
resps, body_iter = zip(*chunks_resps)
meta_start = None
meta_end = None
headers = {}
meta_chunk = self.meta_chunk()
meta_chunk[0]['size'] = len(data)
with set_http_connect(*resps, body_iter=body_iter):
handler = ECChunkDownloadHandler(self.storage_method, meta_chunk,
meta_start, meta_end, headers)
stream = handler.get_stream()
body = b''
for part in stream:
for body_chunk in part['iter']:
body += body_chunk
self.assertEqual(len(data), len(body))
self.assertEqual(data, body)
def test_write_timeout(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * (nb - 1)
resps.append(Timeout(1.0))
with set_http_connect(*resps):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), nb)
for i in range(nb - 1):
self.assertEqual(chunks[i].get('error'), None)
self.assertEqual(chunks[nb - 1].get('error'), '1.0 second')
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_CHECKSUM)
def test_write_partial_exception(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
resps = [201] * (nb - 1)
resps.append(Exception("failure"))
with set_http_connect(*resps):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), nb)
for i in range(nb - 1):
self.assertEqual(chunks[i].get('error'), None)
self.assertEqual(chunks[nb - 1].get('error'), 'failure')
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_CHECKSUM)
def test_write_partial_exception(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
resps = [201] * (len(meta_chunk) - 1)
resps.append(Exception("failure"))
with set_http_connect(*resps):
handler = ReplicatedChunkWriteHandler(
self.sysmeta, meta_chunk, checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), len(meta_chunk))
for i in range(len(meta_chunk) - 1):
self.assertEqual(chunks[i].get('error'), None)
self.assertEqual(chunks[len(meta_chunk) - 1].get('error'), 'failure')
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_CHECKSUM)
def test_write_quorum_success(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
quorum_size = self.storage_method.quorum
resps = [201] * quorum_size
resps += [500] * (nb - quorum_size)
with set_http_connect(*resps):
handler = ECChunkWriteHandler(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), nb)
for i in range(quorum_size):
self.assertEqual(chunks[i].get('error'), None)
for i in xrange(quorum_size, nb):
self.assertEqual(chunks[i].get('error'), 'HTTP 500')
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_CHECKSUM)
def test_write_quorum_success(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE * self.storage_method.ec_nb_data
nb = self.storage_method.ec_nb_data + self.storage_method.ec_nb_parity
quorum_size = self.storage_method.quorum
resps = [201] * quorum_size
resps += [500] * (nb - quorum_size)
with set_http_connect(*resps):
handler = EcMetachunkWriter(self.sysmeta, self.meta_chunk(),
checksum, self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), nb)
for i in range(quorum_size):
self.assertEqual(chunks[i].get('error'), None)
for i in range(quorum_size, nb):
self.assertEqual(chunks[i].get('error'), 'resp: HTTP 500')
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_MD5)
def test_write_quorum_success(self):
checksum = self.checksum()
source = empty_stream()
size = CHUNK_SIZE
meta_chunk = self.meta_chunk()
quorum_size = self.storage_method.quorum
resps = [201] * quorum_size
resps += [500] * (len(meta_chunk) - quorum_size)
with set_http_connect(*resps):
handler = ReplicatedChunkWriteHandler(self.sysmeta, meta_chunk,
checksum,
self.storage_method)
bytes_transferred, checksum, chunks = handler.stream(source, size)
self.assertEqual(len(chunks), len(meta_chunk))
for i in range(quorum_size):
self.assertEqual(chunks[i].get('error'), None)
for i in xrange(quorum_size, len(meta_chunk)):
self.assertEqual(chunks[i].get('error'), 'HTTP 500')
self.assertEqual(bytes_transferred, 0)
self.assertEqual(checksum, EMPTY_CHECKSUM)
