mock.responses[0].getopt(pycurl.TIMEOUT_MS),
int(arvados.KeepClient.DEFAULT_PROXY_TIMEOUT[1]*1000))
- def test_probe_order_reference_set(self):
+ def check_no_services_error(self, verb, exc_class):
+ api_client = mock.MagicMock(name='api_client')
+ api_client.keep_services().accessible().execute.side_effect = (
+ arvados.errors.ApiError)
+ keep_client = arvados.KeepClient(api_client=api_client)
+ with self.assertRaises(exc_class) as err_check:
+ getattr(keep_client, verb)('d41d8cd98f00b204e9800998ecf8427e+0')
+ self.assertEqual(0, len(err_check.exception.request_errors()))
+
+ def test_get_error_with_no_services(self):
+ self.check_no_services_error('get', arvados.errors.KeepReadError)
+
+ def test_put_error_with_no_services(self):
+ self.check_no_services_error('put', arvados.errors.KeepWriteError)
+
+ def check_errors_from_last_retry(self, verb, exc_class):
+ api_client = self.mock_keep_services(count=2)
+ req_mock = tutil.mock_keep_responses(
+ "retry error reporting test", 500, 500, 403, 403)
+ with req_mock, tutil.skip_sleep, \
+ self.assertRaises(exc_class) as err_check:
+ keep_client = arvados.KeepClient(api_client=api_client)
+ getattr(keep_client, verb)('d41d8cd98f00b204e9800998ecf8427e+0',
+ num_retries=3)
+ self.assertEqual([403, 403], [
+ getattr(error, 'status_code', None)
+ for error in err_check.exception.request_errors().itervalues()])
+
+ def test_get_error_reflects_last_retry(self):
+ self.check_errors_from_last_retry('get', arvados.errors.KeepReadError)
+
+ def test_put_error_reflects_last_retry(self):
+ self.check_errors_from_last_retry('put', arvados.errors.KeepWriteError)
+
+ def test_put_error_does_not_include_successful_puts(self):
+ data = 'partial failure test'
+ data_loc = '{}+{}'.format(hashlib.md5(data).hexdigest(), len(data))
+ api_client = self.mock_keep_services(count=3)
+ with tutil.mock_keep_responses(data_loc, 200, 500, 500) as req_mock, \
+ self.assertRaises(arvados.errors.KeepWriteError) as exc_check:
+ keep_client = arvados.KeepClient(api_client=api_client)
+ keep_client.put(data)
+ self.assertEqual(2, len(exc_check.exception.request_errors()))
+
+ def test_proxy_put_with_no_writable_services(self):
+ data = 'test with no writable services'
+ data_loc = '{}+{}'.format(hashlib.md5(data).hexdigest(), len(data))
+ api_client = self.mock_keep_services(service_type='proxy', read_only=True, count=1)
+ with tutil.mock_keep_responses(data_loc, 200, 500, 500) as req_mock, \
+ self.assertRaises(arvados.errors.KeepWriteError) as exc_check:
+ keep_client = arvados.KeepClient(api_client=api_client)
+ keep_client.put(data)
+ self.assertEqual(True, ("no Keep services available" in str(exc_check.exception)))
+ self.assertEqual(0, len(exc_check.exception.request_errors()))
+
+
+@tutil.skip_sleep
+class KeepClientRendezvousTestCase(unittest.TestCase, tutil.ApiClientMock):
+
+ def setUp(self):
# expected_order[i] is the probe order for
# hash=md5(sprintf("%064x",i)) where there are 16 services
# with uuid sprintf("anything-%015x",j) with j in 0..15. E.g.,
# the first probe for the block consisting of 64 "0"
# characters is the service whose uuid is
# "zzzzz-bi6l4-000000000000003", so expected_order[0][0]=='3'.
- expected_order = [
+ self.services = 16
+ self.expected_order = [
list('3eab2d5fc9681074'),
list('097dba52e648f1c3'),
list('c5b4e023f8a7d691'),
list('9d81c02e76a3bf54'),
]
- hashes = [
- hashlib.md5("{:064x}".format(x)).hexdigest()
- for x in range(len(expected_order))]
- api_client = self.mock_keep_services(count=16)
- keep_client = arvados.KeepClient(api_client=api_client)
- for i, hash in enumerate(hashes):
- roots = keep_client.weighted_service_roots(arvados.KeepLocator(hash))
+ self.blocks = [
+ "{:064x}".format(x)
+ for x in range(len(self.expected_order))]
+ self.hashes = [
+ hashlib.md5(self.blocks[x]).hexdigest()
+ for x in range(len(self.expected_order))]
+ self.api_client = self.mock_keep_services(count=self.services)
+ self.keep_client = arvados.KeepClient(api_client=self.api_client)
+
+ def test_weighted_service_roots_against_reference_set(self):
+ # Confirm weighted_service_roots() returns the correct order
+ for i, hash in enumerate(self.hashes):
+ roots = self.keep_client.weighted_service_roots(arvados.KeepLocator(hash))
got_order = [
re.search(r'//\[?keep0x([0-9a-f]+)', root).group(1)
for root in roots]
- self.assertEqual(expected_order[i], got_order)
+ self.assertEqual(self.expected_order[i], got_order)
+
+ def test_get_probe_order_against_reference_set(self):
+ self._test_probe_order_against_reference_set(
+ lambda i: self.keep_client.get(self.hashes[i], num_retries=1))
+
+ def test_put_probe_order_against_reference_set(self):
+ # copies=1 prevents the test from being sensitive to races
+ # between writer threads.
+ self._test_probe_order_against_reference_set(
+ lambda i: self.keep_client.put(self.blocks[i], num_retries=1, copies=1))
+
+ def _test_probe_order_against_reference_set(self, op):
+ for i in range(len(self.blocks)):
+ with tutil.mock_keep_responses('', *[500 for _ in range(self.services*2)]) as mock, \
+ self.assertRaises(arvados.errors.KeepRequestError):
+ op(i)
+ got_order = [
+ re.search(r'//\[?keep0x([0-9a-f]+)', resp.getopt(pycurl.URL)).group(1)
+ for resp in mock.responses]
+ self.assertEqual(self.expected_order[i]*2, got_order)
+
+ def test_put_probe_order_multiple_copies(self):
+ for copies in range(2, 4):
+ for i in range(len(self.blocks)):
+ with tutil.mock_keep_responses('', *[500 for _ in range(self.services*3)]) as mock, \
+ self.assertRaises(arvados.errors.KeepWriteError):
+ self.keep_client.put(self.blocks[i], num_retries=2, copies=copies)
+ got_order = [
+ re.search(r'//\[?keep0x([0-9a-f]+)', resp.getopt(pycurl.URL)).group(1)
+ for resp in mock.responses]
+ for pos, expected in enumerate(self.expected_order[i]*3):
+ # With C threads racing to make requests, the
+ # position of a given server in the sequence of
+ # HTTP requests (got_order) should be within C-1
+ # positions of that server's position in the
+ # reference probe sequence (expected_order).
+ close_enough = False
+ for diff in range(1-copies, copies):
+ if 0 <= pos+diff < len(got_order):
+ if expected == got_order[pos+diff]:
+ close_enough = True
+ self.assertEqual(
+ True, close_enough,
+ "With copies={}, got {}, expected {}".format(
+ copies, repr(got_order), repr(self.expected_order[i]*3)))
def test_probe_waste_adding_one_server(self):
hashes = [
hashlib.md5("{:064x}".format(x)).hexdigest() for x in range(100)]
initial_services = 12
- api_client = self.mock_keep_services(count=initial_services)
- keep_client = arvados.KeepClient(api_client=api_client)
+ self.api_client = self.mock_keep_services(count=initial_services)
+ self.keep_client = arvados.KeepClient(api_client=self.api_client)
probes_before = [
- keep_client.weighted_service_roots(arvados.KeepLocator(hash)) for hash in hashes]
+ self.keep_client.weighted_service_roots(arvados.KeepLocator(hash)) for hash in hashes]
for added_services in range(1, 12):
api_client = self.mock_keep_services(count=initial_services+added_services)
keep_client = arvados.KeepClient(api_client=api_client)
data = hashlib.md5(data).hexdigest() + '+1234'
# Arbitrary port number:
aport = random.randint(1024,65535)
- api_client = self.mock_keep_services(service_port=aport, count=16)
+ api_client = self.mock_keep_services(service_port=aport, count=self.services)
keep_client = arvados.KeepClient(api_client=api_client)
with mock.patch('pycurl.Curl') as curl_mock, \
self.assertRaises(exc_class) as err_check:
def test_put_error_shows_probe_order(self):
self.check_64_zeros_error_order('put', arvados.errors.KeepWriteError)
- def check_no_services_error(self, verb, exc_class):
- api_client = mock.MagicMock(name='api_client')
- api_client.keep_services().accessible().execute.side_effect = (
- arvados.errors.ApiError)
- keep_client = arvados.KeepClient(api_client=api_client)
- with self.assertRaises(exc_class) as err_check:
- getattr(keep_client, verb)('d41d8cd98f00b204e9800998ecf8427e+0')
- self.assertEqual(0, len(err_check.exception.request_errors()))
-
- def test_get_error_with_no_services(self):
- self.check_no_services_error('get', arvados.errors.KeepReadError)
-
- def test_put_error_with_no_services(self):
- self.check_no_services_error('put', arvados.errors.KeepWriteError)
-
- def check_errors_from_last_retry(self, verb, exc_class):
- api_client = self.mock_keep_services(count=2)
- req_mock = tutil.mock_keep_responses(
- "retry error reporting test", 500, 500, 403, 403)
- with req_mock, tutil.skip_sleep, \
- self.assertRaises(exc_class) as err_check:
- keep_client = arvados.KeepClient(api_client=api_client)
- getattr(keep_client, verb)('d41d8cd98f00b204e9800998ecf8427e+0',
- num_retries=3)
- self.assertEqual([403, 403], [
- getattr(error, 'status_code', None)
- for error in err_check.exception.request_errors().itervalues()])
-
- def test_get_error_reflects_last_retry(self):
- self.check_errors_from_last_retry('get', arvados.errors.KeepReadError)
-
- def test_put_error_reflects_last_retry(self):
- self.check_errors_from_last_retry('put', arvados.errors.KeepWriteError)
-
- def test_put_error_does_not_include_successful_puts(self):
- data = 'partial failure test'
- data_loc = '{}+{}'.format(hashlib.md5(data).hexdigest(), len(data))
- api_client = self.mock_keep_services(count=3)
- with tutil.mock_keep_responses(data_loc, 200, 500, 500) as req_mock, \
- self.assertRaises(arvados.errors.KeepWriteError) as exc_check:
- keep_client = arvados.KeepClient(api_client=api_client)
- keep_client.put(data)
- self.assertEqual(2, len(exc_check.exception.request_errors()))
-
class KeepClientTimeout(unittest.TestCase, tutil.ApiClientMock):
DATA = 'x' * 2**10
projects / arvados.git / blobdiff