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# Copyright DataStax, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from cassandra.cluster import EXEC_PROFILE_GRAPH_ANALYTICS_DEFAULT
from cassandra.graph import SimpleGraphStatement
from tests.integration import DSE_VERSION, requiredse
from tests.integration.advanced import use_singledc_wth_graph_and_spark, find_spark_master
from tests.integration.advanced.graph import BasicGraphUnitTestCase, ClassicGraphFixtures
log = logging.getLogger(__name__)
def setup_module():
if DSE_VERSION:
use_singledc_wth_graph_and_spark()
@requiredse
class SparkLBTests(BasicGraphUnitTestCase):
"""
Test to validate that analtics query can run in a multi-node enviroment. Also check to to ensure
that the master spark node is correctly targeted when OLAP queries are run
@since 3.20
@jira_ticket PYTHON-510
@expected_result OLAP results should come back correctly, master spark coordinator should always be picked.
@test_category dse graph
"""
def test_spark_analytic_query(self):
self.session.execute_graph(ClassicGraphFixtures.classic())
spark_master = find_spark_master(self.session)
# Run multipltle times to ensure we don't round robin
for i in range(3):
to_run = SimpleGraphStatement("g.V().count()")
rs = self.session.execute_graph(to_run, execution_profile=EXEC_PROFILE_GRAPH_ANALYTICS_DEFAULT)
self.assertEqual(rs[0].value, 7)
self.assertEqual(rs.response_future._current_host.address, spark_master)
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