def test_dc_aware_roundrobin_two_dcs_2(self):
clear_and_use_multidc([3, 2])
keyspace = 'test_dc_aware_roundrobin_two_dcs_2'
cluster = Cluster(load_balancing_policy=DCAwareRoundRobinPolicy('dc2'),
protocol_version=PROTOCOL_VERSION)
session = cluster.connect()
wait_for_up(cluster, 1, wait=False)
wait_for_up(cluster, 2, wait=False)
wait_for_up(cluster, 3, wait=False)
wait_for_up(cluster, 4, wait=False)
wait_for_up(cluster, 5)
create_schema(session, keyspace, replication_strategy=[2, 2])
self._insert(session, keyspace)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 0)
self.coordinator_stats.assert_query_count_equals(self, 2, 0)
self.coordinator_stats.assert_query_count_equals(self, 3, 0)
self.coordinator_stats.assert_query_count_equals(self, 4, 6)
self.coordinator_stats.assert_query_count_equals(self, 5, 6)
def test_dc_aware_roundrobin_two_dcs_2(self):
clear_and_use_multidc([3, 2])
keyspace = 'test_dc_aware_roundrobin_two_dcs_2'
cluster = Cluster(
load_balancing_policy=DCAwareRoundRobinPolicy('dc2'),
protocol_version=PROTOCOL_VERSION)
session = cluster.connect()
wait_for_up(cluster, 1, wait=False)
wait_for_up(cluster, 2, wait=False)
wait_for_up(cluster, 3, wait=False)
wait_for_up(cluster, 4, wait=False)
wait_for_up(cluster, 5)
create_schema(session, keyspace, replication_strategy=[2, 2])
self._insert(session, keyspace)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 0)
self.coordinator_stats.assert_query_count_equals(self, 2, 0)
self.coordinator_stats.assert_query_count_equals(self, 3, 0)
self.coordinator_stats.assert_query_count_equals(self, 4, 6)
self.coordinator_stats.assert_query_count_equals(self, 5, 6)
def test_roundrobin_two_dcs_2(self):
clear_and_use_multidc([2, 2])
keyspace = 'test_roundrobin_two_dcs_2'
cluster = Cluster(
load_balancing_policy=RoundRobinPolicy(),
protocol_version=PROTOCOL_VERSION)
session = cluster.connect()
wait_for_up(cluster, 1, wait=False)
wait_for_up(cluster, 2, wait=False)
wait_for_up(cluster, 3, wait=False)
wait_for_up(cluster, 4)
create_schema(session, keyspace, replication_strategy=[2, 2])
self._insert(session, keyspace)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 3)
self.coordinator_stats.assert_query_count_equals(self, 2, 3)
self.coordinator_stats.assert_query_count_equals(self, 3, 3)
self.coordinator_stats.assert_query_count_equals(self, 4, 3)
force_stop(1)
bootstrap(5, 'dc1')
# reset control connection
self._insert(session, keyspace, count=1000)
wait_for_up(cluster, 5)
self.coordinator_stats.reset_counts()
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 0)
self.coordinator_stats.assert_query_count_equals(self, 2, 3)
self.coordinator_stats.assert_query_count_equals(self, 3, 3)
self.coordinator_stats.assert_query_count_equals(self, 4, 3)
self.coordinator_stats.assert_query_count_equals(self, 5, 3)
def test_roundrobin_two_dcs_2(self):
clear_and_use_multidc([2, 2])
keyspace = 'test_roundrobin_two_dcs_2'
cluster = Cluster(load_balancing_policy=RoundRobinPolicy(),
protocol_version=PROTOCOL_VERSION)
session = cluster.connect()
wait_for_up(cluster, 1, wait=False)
wait_for_up(cluster, 2, wait=False)
wait_for_up(cluster, 3, wait=False)
wait_for_up(cluster, 4)
create_schema(session, keyspace, replication_strategy=[2, 2])
self._insert(session, keyspace)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 3)
self.coordinator_stats.assert_query_count_equals(self, 2, 3)
self.coordinator_stats.assert_query_count_equals(self, 3, 3)
self.coordinator_stats.assert_query_count_equals(self, 4, 3)
force_stop(1)
bootstrap(5, 'dc1')
# reset control connection
self._insert(session, keyspace, count=1000)
wait_for_up(cluster, 5)
self.coordinator_stats.reset_counts()
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 0)
self.coordinator_stats.assert_query_count_equals(self, 2, 3)
self.coordinator_stats.assert_query_count_equals(self, 3, 3)
self.coordinator_stats.assert_query_count_equals(self, 4, 3)
self.coordinator_stats.assert_query_count_equals(self, 5, 3)
def test_dc_aware_roundrobin_one_remote_host(self):
clear_and_use_multidc([2, 2])
keyspace = 'test_dc_aware_roundrobin_one_remote_host'
cluster = Cluster(
load_balancing_policy=DCAwareRoundRobinPolicy('dc2', used_hosts_per_remote_dc=1),
protocol_version=PROTOCOL_VERSION)
session = cluster.connect()
wait_for_up(cluster, 1, wait=False)
wait_for_up(cluster, 2, wait=False)
wait_for_up(cluster, 3, wait=False)
wait_for_up(cluster, 4)
create_schema(session, keyspace, replication_strategy=[2, 2])
self._insert(session, keyspace)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 0)
self.coordinator_stats.assert_query_count_equals(self, 2, 0)
self.coordinator_stats.assert_query_count_equals(self, 3, 6)
self.coordinator_stats.assert_query_count_equals(self, 4, 6)
self.coordinator_stats.reset_counts()
bootstrap(5, 'dc1')
wait_for_up(cluster, 5)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 0)
self.coordinator_stats.assert_query_count_equals(self, 2, 0)
self.coordinator_stats.assert_query_count_equals(self, 3, 6)
self.coordinator_stats.assert_query_count_equals(self, 4, 6)
self.coordinator_stats.assert_query_count_equals(self, 5, 0)
self.coordinator_stats.reset_counts()
decommission(3)
decommission(4)
wait_for_down(cluster, 3, wait=True)
wait_for_down(cluster, 4, wait=True)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 3, 0)
self.coordinator_stats.assert_query_count_equals(self, 4, 0)
responses = set()
for node in [1, 2, 5]:
responses.add(self.coordinator_stats.get_query_count(node))
self.assertEqual(set([0, 0, 12]), responses)
self.coordinator_stats.reset_counts()
decommission(5)
wait_for_down(cluster, 5, wait=True)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 3, 0)
self.coordinator_stats.assert_query_count_equals(self, 4, 0)
self.coordinator_stats.assert_query_count_equals(self, 5, 0)
responses = set()
for node in [1, 2]:
responses.add(self.coordinator_stats.get_query_count(node))
self.assertEqual(set([0, 12]), responses)
self.coordinator_stats.reset_counts()
decommission(1)
wait_for_down(cluster, 1, wait=True)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 0)
self.coordinator_stats.assert_query_count_equals(self, 2, 12)
self.coordinator_stats.assert_query_count_equals(self, 3, 0)
self.coordinator_stats.assert_query_count_equals(self, 4, 0)
self.coordinator_stats.assert_query_count_equals(self, 5, 0)
self.coordinator_stats.reset_counts()
force_stop(2)
try:
self._query(session, keyspace)
self.fail()
except NoHostAvailable:
pass
def test_dc_aware_roundrobin_one_remote_host(self):
clear_and_use_multidc([2, 2])
keyspace = 'test_dc_aware_roundrobin_one_remote_host'
cluster = Cluster(load_balancing_policy=DCAwareRoundRobinPolicy(
'dc2', used_hosts_per_remote_dc=1),
protocol_version=PROTOCOL_VERSION)
session = cluster.connect()
wait_for_up(cluster, 1, wait=False)
wait_for_up(cluster, 2, wait=False)
wait_for_up(cluster, 3, wait=False)
wait_for_up(cluster, 4)
create_schema(session, keyspace, replication_strategy=[2, 2])
self._insert(session, keyspace)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 0)
self.coordinator_stats.assert_query_count_equals(self, 2, 0)
self.coordinator_stats.assert_query_count_equals(self, 3, 6)
self.coordinator_stats.assert_query_count_equals(self, 4, 6)
self.coordinator_stats.reset_counts()
bootstrap(5, 'dc1')
wait_for_up(cluster, 5)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 0)
self.coordinator_stats.assert_query_count_equals(self, 2, 0)
self.coordinator_stats.assert_query_count_equals(self, 3, 6)
self.coordinator_stats.assert_query_count_equals(self, 4, 6)
self.coordinator_stats.assert_query_count_equals(self, 5, 0)
self.coordinator_stats.reset_counts()
decommission(3)
decommission(4)
wait_for_down(cluster, 3, wait=True)
wait_for_down(cluster, 4, wait=True)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 3, 0)
self.coordinator_stats.assert_query_count_equals(self, 4, 0)
responses = set()
for node in [1, 2, 5]:
responses.add(self.coordinator_stats.get_query_count(node))
self.assertEqual(set([0, 0, 12]), responses)
self.coordinator_stats.reset_counts()
decommission(5)
wait_for_down(cluster, 5, wait=True)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 3, 0)
self.coordinator_stats.assert_query_count_equals(self, 4, 0)
self.coordinator_stats.assert_query_count_equals(self, 5, 0)
responses = set()
for node in [1, 2]:
responses.add(self.coordinator_stats.get_query_count(node))
self.assertEqual(set([0, 12]), responses)
self.coordinator_stats.reset_counts()
decommission(1)
wait_for_down(cluster, 1, wait=True)
self._query(session, keyspace)
self.coordinator_stats.assert_query_count_equals(self, 1, 0)
self.coordinator_stats.assert_query_count_equals(self, 2, 12)
self.coordinator_stats.assert_query_count_equals(self, 3, 0)
self.coordinator_stats.assert_query_count_equals(self, 4, 0)
self.coordinator_stats.assert_query_count_equals(self, 5, 0)
self.coordinator_stats.reset_counts()
force_stop(2)
try:
self._query(session, keyspace)
self.fail()
except NoHostAvailable:
pass