Fixups for EC frag duplication tests
Follow up for related change: - fix typos - use common helper methods - refactor some tests to reduce duplicate code Related-Change: Idd155401982a2c48110c30b480966a863f6bd305 Change-Id: I2f91a2f31e4c1b11f3d685fa8166c1a25eb87429
This commit is contained in:
Alistair Coles
parent
40ba7f6172
commit
e4972f5ac7
@ -1147,7 +1147,8 @@ def encode_frag_archive_bodies(policy, body):
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# encode the buffers into fragment payloads
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fragment_payloads = []
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for chunk in chunks:
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fragments = policy.pyeclib_driver.encode(chunk)
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fragments = policy.pyeclib_driver.encode(chunk) \
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* policy.ec_duplication_factor
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if not fragments:
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break
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fragment_payloads.append(fragments)
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@ -2584,6 +2584,8 @@ cluster_dfw1 = http://dfw1.host/v1/
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1: 1,
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'2': 2,
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'1024': 1024,
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'0': ValueError,
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'-1': ValueError,
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'0x01': ValueError,
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'asdf': ValueError,
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None: ValueError,
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@ -42,7 +42,7 @@ from swift.obj.reconstructor import REVERT
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from test.unit import (patch_policies, debug_logger, mocked_http_conn,
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FabricatedRing, make_timestamp_iter,
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DEFAULT_TEST_EC_TYPE)
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DEFAULT_TEST_EC_TYPE, encode_frag_archive_bodies)
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from test.unit.obj.common import write_diskfile
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@ -65,25 +65,6 @@ def mock_ssync_sender(ssync_calls=None, response_callback=None, **kwargs):
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yield fake_ssync
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def make_ec_archive_bodies(policy, test_body):
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segment_size = policy.ec_segment_size
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# split up the body into buffers
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chunks = [test_body[x:x + segment_size]
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for x in range(0, len(test_body), segment_size)]
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# encode the buffers into fragment payloads
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fragment_payloads = []
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for chunk in chunks:
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fragments = \
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policy.pyeclib_driver.encode(chunk) * policy.ec_duplication_factor
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if not fragments:
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break
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fragment_payloads.append(fragments)
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# join up the fragment payloads per node
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ec_archive_bodies = [''.join(frags) for frags in zip(*fragment_payloads)]
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return ec_archive_bodies
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def _create_test_rings(path):
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testgz = os.path.join(path, 'object.ring.gz')
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intended_replica2part2dev_id = [
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@ -2636,7 +2617,7 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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broken_body = ec_archive_bodies.pop(1)
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responses = list()
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@ -2702,7 +2683,7 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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broken_body = ec_archive_bodies.pop(4)
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@ -2744,7 +2725,7 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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broken_body = ec_archive_bodies.pop(4)
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@ -2774,7 +2755,7 @@ class TestObjectReconstructor(unittest.TestCase):
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df = self.reconstructor.reconstruct_fa(
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job, node, dict(metadata))
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fixed_body = ''.join(df.reader())
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# ... this bad request should be treated like any other failure
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# ... this bad response should be ignored like any other failure
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self.assertEqual(len(fixed_body), len(broken_body))
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self.assertEqual(md5(fixed_body).hexdigest(),
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md5(broken_body).hexdigest())
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@ -2797,7 +2778,7 @@ class TestObjectReconstructor(unittest.TestCase):
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# segment size)
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-454]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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# the scheme is 10+4, so this gets a parity node
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broken_body = ec_archive_bodies.pop(-4)
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@ -2843,9 +2824,11 @@ class TestObjectReconstructor(unittest.TestCase):
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self.assertRaises(DiskFileError, self.reconstructor.reconstruct_fa,
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job, node, metadata)
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error_lines = self.logger.get_lines_for_level('error')
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# # of replicas failed and one more error log to report no enough
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# # of replicas failed and one more error log to report not enough
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# responses to reconstruct.
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self.assertEqual(policy.object_ring.replicas, len(error_lines))
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for line in error_lines[:-1]:
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self.assertIn("Trying to GET", line)
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self.assertIn(
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'Unable to get enough responses (%s error responses)'
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% (policy.object_ring.replicas - 1),
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@ -2874,7 +2857,7 @@ class TestObjectReconstructor(unittest.TestCase):
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self.assertRaises(DiskFileError, self.reconstructor.reconstruct_fa,
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job, node, metadata)
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error_lines = self.logger.get_lines_for_level('error')
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# only 1 log to report no enough responses
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# only 1 log to report not enough responses
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self.assertEqual(1, len(error_lines))
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self.assertIn(
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'Unable to get enough responses (%s error responses)'
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@ -2900,11 +2883,11 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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# bad response
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broken_body = ec_archive_bodies.pop(1)
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ts = (utils.Timestamp(t) for t in itertools.count(int(time.time())))
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ts = make_timestamp_iter()
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bad_headers = get_header_frag_index(self, broken_body)
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bad_headers.update({
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'X-Object-Sysmeta-Ec-Etag': 'some garbage',
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@ -2920,8 +2903,8 @@ class TestObjectReconstructor(unittest.TestCase):
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'X-Backend-Timestamp': t1})
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responses.append((200, body, headers))
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# mixed together
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error_index = random.randint(0, self.policy.ec_ndata)
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# include the one older frag with different etag in first responses
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error_index = random.randint(0, self.policy.ec_ndata - 1)
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error_headers = get_header_frag_index(self,
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(responses[error_index])[1])
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error_headers.update(bad_headers)
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@ -2956,10 +2939,10 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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broken_body = ec_archive_bodies.pop(1)
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ts = (utils.Timestamp(t) for t in itertools.count(int(time.time())))
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ts = make_timestamp_iter()
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# good responses
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responses = list()
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@ -3016,7 +2999,7 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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broken_body = ec_archive_bodies.pop(1)
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@ -3037,12 +3020,12 @@ class TestObjectReconstructor(unittest.TestCase):
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self.assertEqual(md5(fixed_body).hexdigest(),
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md5(broken_body).hexdigest())
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# one newer timestamp but same etag won't spoil the bunch
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# N.B. (FIXIME). we choose the first response as garbage, the
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# a response at same timestamp but different etag won't spoil the bunch
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# N.B. (FIXME). if we choose the first response as garbage, the
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# reconstruction fails because all other *correct* frags will be
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# assumed as garbage. To avoid the freaky failing set randint
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# as [1, self.policy.ec_ndata - 1] to make the first response
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# being the correct fragment to reconstruct
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# always have the correct etag to reconstruct
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new_index = random.randint(1, self.policy.ec_ndata - 1)
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new_headers = get_header_frag_index(self, (responses[new_index])[1])
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new_headers.update({'X-Object-Sysmeta-Ec-Etag': 'some garbage'})
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@ -3057,7 +3040,7 @@ class TestObjectReconstructor(unittest.TestCase):
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self.assertEqual(md5(fixed_body).hexdigest(),
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md5(broken_body).hexdigest())
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# no error and warning
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# expect an error log but no warnings
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error_log_lines = self.logger.get_lines_for_level('error')
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self.assertEqual(1, len(error_log_lines))
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self.assertIn(
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@ -3082,11 +3065,11 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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ec_archive_dict = dict()
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ts = (utils.Timestamp(t) for t in itertools.count(int(time.time())))
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ts = make_timestamp_iter()
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# create 3 different ec bodies
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for i in range(3):
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body = test_data[i:]
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archive_bodies = make_ec_archive_bodies(self.policy, body)
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archive_bodies = encode_frag_archive_bodies(self.policy, body)
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# pop the index to the destination node
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archive_bodies.pop(1)
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ec_archive_dict[
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@ -3118,7 +3101,7 @@ class TestObjectReconstructor(unittest.TestCase):
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job, node, metadata)
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error_lines = self.logger.get_lines_for_level('error')
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# only 1 log to report no enough responses
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# 1 error log per etag to report not enough responses
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self.assertEqual(3, len(error_lines))
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for error_line in error_lines:
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for expected_etag, ts in ec_archive_dict:
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@ -3155,7 +3138,7 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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# instead of popping the broken body, we'll just leave it in the list
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# of responses and take away something else.
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@ -3190,7 +3173,7 @@ class TestObjectReconstructor(unittest.TestCase):
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# ... and then, it should be skipped in the responses
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# N.B. in the future, we could avoid those check because
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# definately sending the copy rather than reconstruct will
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# definitely sending the copy rather than reconstruct will
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# save resources. But one more reason, we're avoiding to
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# use the dest index fragment even if it goes to reconstruct
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# function is that it will cause a bunch of warning log from
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@ -3219,7 +3202,7 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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broken_body = ec_archive_bodies.pop(1)
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# add some duplicates
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@ -3274,7 +3257,7 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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broken_body = ec_archive_bodies.pop(1)
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@ -3300,7 +3283,7 @@ class TestObjectReconstructor(unittest.TestCase):
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self.assertEqual(md5(fixed_body).hexdigest(),
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md5(broken_body).hexdigest())
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# no errorg
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# no errors
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self.assertFalse(self.logger.get_lines_for_level('error'))
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# ...but warning for the missing header
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warning_log_lines = self.logger.get_lines_for_level('warning')
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@ -3341,7 +3324,7 @@ class TestObjectReconstructor(unittest.TestCase):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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broken_body = ec_archive_bodies.pop(1)
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@ -3368,7 +3351,7 @@ class TestObjectReconstructor(unittest.TestCase):
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self.assertEqual(md5(fixed_body).hexdigest(),
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md5(broken_body).hexdigest())
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# no errorg
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# no errors
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self.assertFalse(self.logger.get_lines_for_level('error'))
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# ...but warning for the invalid header
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warning_log_lines = self.logger.get_lines_for_level('warning')
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@ -3409,7 +3392,7 @@ class TestObjectReconstructorECDuplicationFactor(TestObjectReconstructor):
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test_data = ('rebuild' * self.policy.ec_segment_size)[:-777]
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etag = md5(test_data).hexdigest()
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ec_archive_bodies = make_ec_archive_bodies(self.policy, test_data)
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ec_archive_bodies = encode_frag_archive_bodies(self.policy, test_data)
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broken_body = ec_archive_bodies.pop(index)
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@ -3428,11 +3411,11 @@ class TestObjectReconstructorECDuplicationFactor(TestObjectReconstructor):
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called_headers.append(headers)
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return orig_func(self, node, part, path, headers, policy)
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# need to m + 1 node failures to reach 2nd set of duplicated fragments
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# need parity + 1 node failures to reach duplicated fragments
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failed_start_at = (
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self.policy.ec_n_unique_fragments - self.policy.ec_nparity - 1)
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# set Timeout for node #10, #11, #12, #13, #14
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# set Timeout for node #9, #10, #11, #12, #13
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for i in range(self.policy.ec_nparity + 1):
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responses[failed_start_at + i] = (Timeout(), '', '')
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@ -2205,7 +2205,7 @@ class TestECObjController(BaseObjectControllerMixin, unittest.TestCase):
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_part, primary_nodes = self.obj_ring.get_nodes('a', 'c', 'o')
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node_key = lambda n: (n['ip'], n['port'])
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backend_index = lambda index: self.policy.get_backend_index(index)
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backend_index = self.policy.get_backend_index
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ts = self._ts_iter.next()
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response_map = {
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@ -3654,41 +3654,24 @@ class TestECObjController(BaseObjectControllerMixin, unittest.TestCase):
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class TestECFunctions(unittest.TestCase):
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def test_chunk_transformer(self):
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def do_test(dup):
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segment_size = 1024
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orig_chunk = 'a' * segment_size
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policy = ECStoragePolicy(0, 'ec8-2', ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=8, ec_nparity=2,
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object_ring=FakeRing(replicas=10),
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ec_segment_size=segment_size)
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expected = policy.pyeclib_driver.encode(orig_chunk)
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transform = obj.chunk_transformer(
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policy, policy.object_ring.replica_count)
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transform.send(None)
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backend_chunks = transform.send(orig_chunk)
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self.assertNotEqual(None, backend_chunks) # sanity
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self.assertEqual(
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len(backend_chunks), policy.object_ring.replica_count)
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self.assertEqual(expected, backend_chunks)
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def test_chunk_transformer_duplication_factor(self):
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segment_size = 1024
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orig_chunk = 'a' * segment_size
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policy = ECStoragePolicy(0, 'ec8-2', ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=8, ec_nparity=2,
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object_ring=FakeRing(replicas=20),
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object_ring=FakeRing(replicas=10 * dup),
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ec_segment_size=segment_size,
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ec_duplication_factor=2)
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ec_duplication_factor=dup)
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expected = policy.pyeclib_driver.encode(orig_chunk)
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transform = obj.chunk_transformer(
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policy, policy.object_ring.replica_count)
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transform.send(None)
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backend_chunks = transform.send(orig_chunk)
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self.assertNotEqual(None, backend_chunks) # sanity
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self.assertIsNotNone(backend_chunks) # sanity
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self.assertEqual(
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len(backend_chunks), policy.object_ring.replica_count)
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self.assertEqual(expected * 2, backend_chunks)
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self.assertEqual(expected * dup, backend_chunks)
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# flush out last chunk buffer
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backend_chunks = transform.send('')
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@ -3696,14 +3679,19 @@ class TestECFunctions(unittest.TestCase):
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len(backend_chunks), policy.object_ring.replica_count)
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self.assertEqual([''] * policy.object_ring.replica_count,
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backend_chunks)
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do_test(1)
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do_test(2)
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do_test(3)
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def test_chunk_transformer_duplication_factor_non_aligned_last_chunk(self):
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def test_chunk_transformer_non_aligned_last_chunk(self):
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last_chunk = 'a' * 128
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def do_test(dup):
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policy = ECStoragePolicy(0, 'ec8-2', ec_type=DEFAULT_TEST_EC_TYPE,
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ec_ndata=8, ec_nparity=2,
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object_ring=FakeRing(replicas=20),
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object_ring=FakeRing(replicas=10 * dup),
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ec_segment_size=1024,
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ec_duplication_factor=2)
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ec_duplication_factor=dup)
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expected = policy.pyeclib_driver.encode(last_chunk)
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transform = obj.chunk_transformer(
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policy, policy.object_ring.replica_count)
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@ -3715,7 +3703,9 @@ class TestECFunctions(unittest.TestCase):
|
||||
|
||||
self.assertEqual(
|
||||
len(backend_chunks), policy.object_ring.replica_count)
|
||||
self.assertEqual(expected * 2, backend_chunks)
|
||||
self.assertEqual(expected * dup, backend_chunks)
|
||||
do_test(1)
|
||||
do_test(2)
|
||||
|
||||
|
||||
@patch_policies([ECStoragePolicy(0, name='ec', is_default=True,
|
||||
@ -3767,7 +3757,7 @@ class TestECDuplicationObjController(
|
||||
index = conn.resp.headers['X-Object-Sysmeta-Ec-Frag-Index']
|
||||
collected_responses[etag].add(index)
|
||||
|
||||
# the backend requests should be >= num_data_fragmetns
|
||||
# the backend requests should be >= num_data_fragments
|
||||
self.assertGreaterEqual(len(log), self.policy.ec_ndata)
|
||||
# but <= # of replicas
|
||||
self.assertLessEqual(len(log), self.replicas())
|
||||
@ -3820,9 +3810,9 @@ class TestECDuplicationObjController(
|
||||
{'obj': obj, 'frag': 5},
|
||||
{'obj': obj, 'frag': 6},
|
||||
{'obj': obj, 'frag': 6},
|
||||
{'obj': obj, 'frag': 7},
|
||||
{'obj': obj, 'frag': 7},
|
||||
# second half of # of replicas are 7, 8, 9, 10, 11, 12, 13
|
||||
{'obj': obj, 'frag': 7},
|
||||
{'obj': obj, 'frag': 7},
|
||||
{'obj': obj, 'frag': 8},
|
||||
{'obj': obj, 'frag': 8},
|
||||
{'obj': obj, 'frag': 9},
|
||||
@ -3865,7 +3855,7 @@ class TestECDuplicationObjController(
|
||||
{'obj': obj2, 'frag': 8},
|
||||
]
|
||||
# ... and the rests are 404s which is limited by request_count
|
||||
# (2 * replicas in default) rather than max_extra_count limitation
|
||||
# (2 * replicas in default) rather than max_extra_requests limitation
|
||||
# because the retries will be in ResumingGetter if the responses
|
||||
# are 404s
|
||||
node_frags += [[]] * (self.replicas() * 2 - len(node_frags))
|
||||
@ -3917,7 +3907,7 @@ class TestECDuplicationObjController(
|
||||
]
|
||||
|
||||
# ... and the rests are 404s which is limited by request_count
|
||||
# (2 * replicas in default) rather than max_extra_count limitation
|
||||
# (2 * replicas in default) rather than max_extra_requests limitation
|
||||
# because the retries will be in ResumingGetter if the responses
|
||||
# are 404s
|
||||
node_frags += [[]] * (self.replicas() * 2 - len(node_frags))
|
||||
@ -3991,7 +3981,7 @@ class TestECDuplicationObjController(
|
||||
# ... regardless we should never need to fetch more than ec_ndata
|
||||
# frags for any given etag
|
||||
for etag, frags in collected_responses.items():
|
||||
self.assertTrue(len(frags) <= self.policy.ec_ndata,
|
||||
self.assertLessEqual(len(frags), self.policy.ec_ndata,
|
||||
'collected %s frags for etag %s' % (
|
||||
len(frags), etag))
|
||||
|
||||
@ -4108,7 +4098,7 @@ class TestECDuplicationObjController(
|
||||
# ... regardless we should never need to fetch more than ec_ndata
|
||||
# frags for any given etag
|
||||
for etag, frags in collected_responses.items():
|
||||
self.assertTrue(len(frags) <= self.policy.ec_ndata,
|
||||
self.assertLessEqual(len(frags), self.policy.ec_ndata,
|
||||
'collected %s frags for etag %s' % (
|
||||
len(frags), etag))
|
||||
|
||||
|
||||
@ -5665,7 +5665,7 @@ class TestECMismatchedFA(unittest.TestCase):
|
||||
environ={"REQUEST_METHOD": "PUT"},
|
||||
headers={"X-Storage-Policy": "ec-dup", "X-Auth-Token": "t"})
|
||||
resp = ensure_container.get_response(prosrv)
|
||||
self.assertTrue(resp.status_int in (201, 202))
|
||||
self.assertIn(resp.status_int, (201, 202))
|
||||
|
||||
obj1 = "first version..."
|
||||
put_req1 = Request.blank(
|
||||
|
||||
Loading…
Reference in New Issue
Block a user