def test_monitor_tables_locking_errors(self):
"""Test that intensive read/write operations to the MySQL Monitor tables
do not trigger locking errors.
This test will be successful if there will be no generated error at
the end.
"""
# Setting these variables will cause the Monitor to connect more
# frequently to the backend hosts to check their health, thus increasing
# the probability of locking errors to appear.
ProxySQLBaseTest.run_query_proxysql_admin("UPDATE global_variables SET variable_value=100 WHERE variable_name='mysql-monitor_connect_interval'")
ProxySQLBaseTest.run_query_proxysql_admin("UPDATE global_variables SET variable_value=100 WHERE variable_name='mysql-monitor_ping_interval'")
ProxySQLBaseTest.run_query_proxysql_admin("LOAD MYSQL VARIABLES TO RUNTIME")
queries = []
q1 = "select * from monitor.mysql_server_connect_log ORDER BY RANDOM() LIMIT 10"
q2 = "select * from monitor.mysql_server_ping_log ORDER BY RANDOM() LIMIT 10"
for _ in xrange(10000):
queries.append(random.choice([q1, q2]))
pool = ThreadPool(processes=5)
pool.map(ProxySQLBaseTest.run_query_proxysql_admin,
queries)
# If we reached this point without an error, it means that the test
# has passed.
self.assertEqual(1, 1)
def test_stop_main_thread(self):
# This test will just assert that PROXYSQL STOP works correctly
ProxySQLBaseTest.run_query_proxysql_admin("PROXYSQL STOP")
