def test_client(self):
c = MockClient(
standalones=[],
members=['a:1', 'b:2', 'c:3'],
mongoses=[],
host='a:1,b:2,c:3',
replicaSet='rs',
serverSelectionTimeoutMS=100)
# MongoClient connects to primary by default.
wait_until(lambda: c.address is not None, 'connect to primary')
self.assertEqual(c.address, ('a', 1))
# C is brought up as a standalone.
c.mock_members.remove('c:3')
c.mock_standalones.append('c:3')
# Fail over.
c.kill_host('a:1')
c.kill_host('b:2')
# Force reconnect.
c.close()
with self.assertRaises(AutoReconnect):
c.db.command('ismaster')
self.assertEqual(c.address, None)
def test_discover_primary(self):
# Disable background refresh.
with client_knobs(heartbeat_frequency=999999):
c = MockClient(
standalones=[],
members=['a:1', 'b:2', 'c:3'],
mongoses=[],
host='b:2', # Pass a secondary.
replicaSet='rs')
wait_until(lambda: len(c.nodes) == 3, 'connect')
self.assertEqual(c.address, ('a', 1))
# Fail over.
c.kill_host('a:1')
c.mock_primary = 'b:2'
c.close()
self.assertEqual(0, len(c.nodes))
t = c._get_topology()
t.select_servers(writable_server_selector) # Reconnect.
self.assertEqual(c.address, ('b', 2))
# a:1 not longer in nodes.
self.assertLess(len(c.nodes), 3)
# c:3 is rediscovered.
t.select_server_by_address(('c', 3))
def test_client(self):
c = MockClient(
standalones=[],
members=['a:1', 'b:2'],
mongoses=[],
host='a:1',
replicaSet='rs')
wait_until(lambda: len(c.nodes) == 2, 'discover both nodes')
# MongoClient connects to primary by default.
self.assertEqual(c.address, ('a', 1))
self.assertEqual(set([('a', 1), ('b', 2)]), c.nodes)
# C is added.
c.mock_members.append('c:3')
c.mock_ismaster_hosts.append('c:3')
c.close()
c.db.command('ismaster')
self.assertEqual(c.address, ('a', 1))
wait_until(lambda: set([('a', 1), ('b', 2), ('c', 3)]) == c.nodes,
'reconnect to both secondaries')
def test_client(self):
c = MockClient(
standalones=[],
members=['a:1', 'b:2'],
mongoses=[],
host='a:1',
replicaSet='rs')
self.addCleanup(c.close)
wait_until(lambda: len(c.nodes) == 2, 'discover both nodes')
# MongoClient connects to primary by default.
self.assertEqual(c.address, ('a', 1))
self.assertEqual(set([('a', 1), ('b', 2)]), c.nodes)
# C is added.
c.mock_members.append('c:3')
c.mock_ismaster_hosts.append('c:3')
c.close()
c.db.command('ismaster')
self.assertEqual(c.address, ('a', 1))
wait_until(lambda: set([('a', 1), ('b', 2), ('c', 3)]) == c.nodes,
'reconnect to both secondaries')
def test_client(self):
c = MockClient(
standalones=[],
members=['a:1', 'b:2', 'c:3'],
mongoses=[],
host='a:1,b:2,c:3',
replicaSet='rs',
serverSelectionTimeoutMS=100)
self.addCleanup(c.close)
# MongoClient connects to primary by default.
wait_until(lambda: c.address is not None, 'connect to primary')
self.assertEqual(c.address, ('a', 1))
# C is brought up as a standalone.
c.mock_members.remove('c:3')
c.mock_standalones.append('c:3')
# Fail over.
c.kill_host('a:1')
c.kill_host('b:2')
# Force reconnect.
c.close()
with self.assertRaises(AutoReconnect):
c.db.command('ismaster')
self.assertEqual(c.address, None)
def test_wire_version_mongos_ha(self):
c = MockClient(
standalones=[],
members=[],
mongoses=['a:1', 'b:2', 'c:3'],
host='a:1,b:2,c:3',
_connect=False)
c.set_wire_version_range('a:1', 2, 5)
c.set_wire_version_range('b:2', 2, 2)
c.set_wire_version_range('c:3', 1, 1)
c.db.collection.find_one() # Connect.
# Which member did we use?
used_host = '%s:%s' % c.address
expected_min, expected_max = c.mock_wire_versions[used_host]
self.assertEqual(expected_min, c.min_wire_version)
self.assertEqual(expected_max, c.max_wire_version)
c.set_wire_version_range('a:1', 0, 0)
c.set_wire_version_range('b:2', 0, 0)
c.set_wire_version_range('c:3', 0, 0)
c.close()
c.db.collection.find_one()
used_host = '%s:%s' % c.address
expected_min, expected_max = c.mock_wire_versions[used_host]
self.assertEqual(expected_min, c.min_wire_version)
self.assertEqual(expected_max, c.max_wire_version)
def test_wire_version_mongos_ha(self):
# TODO: Reimplement Mongos HA with PyMongo 3's MongoClient.
raise SkipTest('Mongos HA must be reimplemented in PyMongo 3')
c = MockClient(
standalones=[],
members=[],
mongoses=['a:1', 'b:2', 'c:3'],
host='a:1,b:2,c:3',
connect=False)
c.set_wire_version_range('a:1', 2, 5)
c.set_wire_version_range('b:2', 2, 2)
c.set_wire_version_range('c:3', 1, 1)
c.db.command('ismaster') # Connect.
# Which member did we use?
used_host = '%s:%s' % c.address
expected_min, expected_max = c.mock_wire_versions[used_host]
self.assertEqual(expected_min, c.min_wire_version)
self.assertEqual(expected_max, c.max_wire_version)
c.set_wire_version_range('a:1', 0, 0)
c.set_wire_version_range('b:2', 0, 0)
c.set_wire_version_range('c:3', 0, 0)
c.close()
c.db.command('ismaster')
used_host = '%s:%s' % c.address
expected_min, expected_max = c.mock_wire_versions[used_host]
self.assertEqual(expected_min, c.min_wire_version)
self.assertEqual(expected_max, c.max_wire_version)
def test_discover_primary(self):
# Disable background refresh.
with client_knobs(heartbeat_frequency=999999):
c = MockClient(
standalones=[],
members=['a:1', 'b:2', 'c:3'],
mongoses=[],
host='b:2', # Pass a secondary.
replicaSet='rs')
wait_until(lambda: len(c.nodes) == 3, 'connect')
self.assertEqual(c.address, ('a', 1))
# Fail over.
c.kill_host('a:1')
c.mock_primary = 'b:2'
c.close()
self.assertEqual(0, len(c.nodes))
t = c._get_topology()
t.select_servers(writable_server_selector) # Reconnect.
self.assertEqual(c.address, ('b', 2))
# a:1 not longer in nodes.
self.assertLess(len(c.nodes), 3)
# c:3 is rediscovered.
t.select_server_by_address(('c', 3))
def test_discover_primary(self):
# Disable background refresh.
with client_knobs(heartbeat_frequency=999999):
c = MockClient(
standalones=[],
members=["a:1", "b:2", "c:3"],
mongoses=[],
host="b:2", # Pass a secondary.
replicaSet="rs",
)
wait_until(lambda: len(c.nodes) == 3, "connect")
self.assertEqual(c.address, ("a", 1))
# Fail over.
c.kill_host("a:1")
c.mock_primary = "b:2"
c.close()
self.assertEqual(0, len(c.nodes))
t = c._get_topology()
t.select_servers(writable_server_selector) # Reconnect.
self.assertEqual(c.address, ("b", 2))
# a:1 not longer in nodes.
self.assertLess(len(c.nodes), 3)
# c:3 is rediscovered.
t.select_server_by_address(("c", 3))
def test_client(self):
c = MockClient(
standalones=[],
members=['a:1', 'b:2', 'c:3'],
mongoses=[],
host='a:1,b:2,c:3',
replicaSet='rs')
# MongoClient connects to primary by default.
self.assertEqual(('a', 1), c.address)
# C is brought up as a standalone.
c.mock_members.remove('c:3')
c.mock_standalones.append('c:3')
# Fail over.
c.kill_host('a:1')
c.kill_host('b:2')
# Force reconnect.
c.close()
try:
c.db.collection.find_one()
except ConfigurationError, e:
self.assertTrue('not a member of replica set' in str(e))
def test_wire_version(self):
c = MockClient(
standalones=[],
members=['a:1', 'b:2', 'c:3'],
mongoses=[],
host='b:2', # Pass a secondary.
replicaSet='rs',
_connect=False)
c.set_wire_version_range('a:1', 1, 5)
c.db.collection.find_one() # Connect.
self.assertEqual(c.min_wire_version, 1)
self.assertEqual(c.max_wire_version, 5)
c.set_wire_version_range('a:1', 10, 11)
c.close()
self.assertRaises(ConfigurationError, c.db.collection.find_one)
def test_client(self):
c = MockClient(
standalones=[],
members=['a:1', 'b:2'],
mongoses=[],
host='a:1',
replicaSet='rs')
# MongoClient connects to primary by default.
self.assertEqual(('a', 1), c.address)
self.assertEqual(set([('a', 1), ('b', 2)]), c.nodes)
# C is added.
c.mock_members.append('c:3')
c.mock_ismaster_hosts.append('c:3')
c.close()
c.db.collection.find_one()
self.assertEqual(('a', 1), c.address)
self.assertEqual(set([('a', 1), ('b', 2), ('c', 3)]), c.nodes)
def test_discover_primary(self):
c = MockClient(
standalones=[],
members=['a:1', 'b:2', 'c:3'],
mongoses=[],
host='b:2', # Pass a secondary.
replicaSet='rs')
self.assertEqual(('a', 1), c.address)
self.assertEqual(3, len(c.nodes))
# Fail over.
c.kill_host('a:1')
c.mock_primary = 'b:2'
# Force reconnect.
c.close()
c.db.collection.find_one()
self.assertEqual(('b', 2), c.address)
# a:1 is still in nodes.
self.assertEqual(3, len(c.nodes))
def test_max_wire_version(self):
c = MockClient(
standalones=[],
members=['a:1', 'b:2', 'c:3'],
mongoses=[],
host='b:2', # Pass a secondary.
replicaSet='rs',
_connect=False)
c.set_max_write_batch_size('a:1', 1)
c.set_max_write_batch_size('b:2', 2)
# Starts with default max batch size.
self.assertEqual(1000, c.max_write_batch_size)
c.db.collection.find_one() # Connect.
# Uses primary's max batch size.
self.assertEqual(c.max_write_batch_size, 1)
# b becomes primary.
c.mock_primary = 'b:2'
c.close()
self.assertEqual(1000, c.max_write_batch_size)
c.db.collection.find_one() # Connect.
self.assertEqual(c.max_write_batch_size, 2)
