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,
connect=False)
self.addCleanup(c.close)
# 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')
with self.assertRaises(ServerSelectionTimeoutError):
c.db.command('ping')
self.assertEqual(c.address, None)
# Client can still discover the primary node
c.revive_host('a:1')
wait_until(lambda: c.address is not None, 'connect to primary')
self.assertEqual(c.address, ('a', 1))
def test_reconnect(self):
# Verify the node list isn't forgotten during a network failure.
c = MockClient(
standalones=[], members=["a:1", "b:2", "c:3"], mongoses=[], host="b:2", replicaSet="rs" # Pass a secondary.
)
wait_until(lambda: len(c.nodes) == 3, "connect")
# Total failure.
c.kill_host("a:1")
c.kill_host("b:2")
c.kill_host("c:3")
# MongoClient discovers it's alone.
self.assertRaises(AutoReconnect, c.db.collection.find_one)
# But it can reconnect.
c.revive_host("a:1")
c._get_topology().select_servers(writable_server_selector)
self.assertEqual(c.address, ("a", 1))
def test_reconnect(self):
# Verify the node list isn't forgotten during a network failure.
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')
# Total failure.
c.kill_host('a:1')
c.kill_host('b:2')
c.kill_host('c:3')
# MongoClient discovers it's alone.
self.assertRaises(AutoReconnect, c.db.collection.find_one)
# But it can reconnect.
c.revive_host('a:1')
c._get_topology().select_servers(writable_server_selector)
self.assertEqual(c.address, ('a', 1))
def test_reconnect(self):
# Verify the node list isn't forgotten during a network failure.
c = MockClient(
standalones=[],
members=['a:1', 'b:2', 'c:3'],
mongoses=[],
host='b:2', # Pass a secondary.
replicaSet='rs')
# Total failure.
c.kill_host('a:1')
c.kill_host('b:2')
c.kill_host('c:3')
# MongoClient discovers it's alone.
self.assertRaises(AutoReconnect, c.db.collection.find_one)
# But it remembers its node list.
self.assertEqual(3, len(c.nodes))
# So it can reconnect.
c.revive_host('a:1')
c.db.collection.find_one()
def test_reconnect(self):
# Verify the node list isn't forgotten during a network failure.
c = MockClient(
standalones=[],
members=['a:1', 'b:2', 'c:3'],
mongoses=[],
host='b:2', # Pass a secondary.
replicaSet='rs')
# Total failure.
c.kill_host('a:1')
c.kill_host('b:2')
c.kill_host('c:3')
# MongoClient discovers it's alone.
self.assertRaises(AutoReconnect, c.db.collection.find_one)
# But it remembers its node list.
self.assertEqual(3, len(c.nodes))
# So it can reconnect.
c.revive_host('a:1')
c.db.collection.find_one()
def test_reconnect(self):
# Verify the node list isn't forgotten during a network failure.
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')
# Total failure.
c.kill_host('a:1')
c.kill_host('b:2')
c.kill_host('c:3')
# MongoClient discovers it's alone.
self.assertRaises(AutoReconnect, c.db.collection.find_one)
# But it can reconnect.
c.revive_host('a:1')
c._get_topology().select_servers(writable_server_selector)
self.assertEqual(c.address, ('a', 1))
