old_contents: #!/usr/bin/env python
  
  from avocado import main
  
  from sdcm.tester import ClusterTester
  from sdcm.tester import clean_aws_resources
  
  
  class QueriesLimitsTest(ClusterTester):
  
      """
      Test scylla cluster growth (adding nodes after an initial cluster size).
  
      :avocado: enable
      """
  
      @clean_aws_resources
      def setUp(self):
          self.credentials = None
          self.db_cluster = None
          self.loaders = None
  
          # we will give a very slow disk to the db node
          # so the loader node will easilly saturate it
          bdm = [{"DeviceName": "/dev/sda1",
                  "Ebs": {"Iops": 100,
                          "VolumeType": "io1",
                          "DeleteOnTermination": True}}]
  
          # Use big instance to be not throttled by the network
          self.init_resources(n_db_nodes=1, n_loader_nodes=1,
                              dbs_block_device_mappings=bdm,
                              dbs_type='m4.4xlarge',
                              loaders_type='m4.4xlarge')
          self.loaders.wait_for_init()
          self.db_cluster.wait_for_init()
          self.stress_thread = None
  
          self.payload = "/tmp/payload"
  
          self.db_cluster.run("grep -v SCYLLA_ARGS /etc/sysconfig/scylla-server > /tmp/l")
          self.db_cluster.run("""echo "SCYLLA_ARGS=\"-m 128M -c 1\"" >> /tmp/l""")
          self.db_cluster.run("sudo cp /tmp/l /etc/sysconfig/scylla-server")
          self.db_cluster.run("sudo chown root.root /etc/sysconfig/scylla-server")
          self.db_cluster.run("sudo systemctl stop scylla-server.service")
          self.db_cluster.run("sudo systemctl start scylla-server.service")
  
          self.loaders.run("sudo dnf install -y boost-program-options")
          self.loaders.run("sudo dnf install -y libuv")
          self.loaders.send_file("queries-limits", self.payload)
          self.loaders.run("chmod +x " + self.payload)
  
      def test_connection_limits(self):
          ips = self.db_cluster.get_node_private_ips()
          params = " --servers %s --duration 600 --queries 1000000" % (ips[0])
          self.run_stress(stress_cmd=(self.payload + params), duration=10)
  
  
  if __name__ == '__main__':
      main()
  
new_contents: #!/usr/bin/env python
  
  from avocado import main
  
  from sdcm.tester import ClusterTester
  from sdcm.tester import clean_aws_resources
  
  
  class QueryLimitsTest(ClusterTester):
  
      """
      Test scylla cluster growth (adding nodes after an initial cluster size).
  
      :avocado: enable
      """
  
      @clean_aws_resources
      def setUp(self):
          self.credentials = None
          self.db_cluster = None
          self.loaders = None
  
          # we will give a very slow disk to the db node
          # so the loader node will easilly saturate it
          bdm = [{"DeviceName": "/dev/sda1",
                  "Ebs": {"Iops": 100,
                          "VolumeType": "io1",
                          "DeleteOnTermination": True}}]
  
          # Use big instance to be not throttled by the network
          self.init_resources(n_db_nodes=1, n_loader_nodes=1,
                              dbs_block_device_mappings=bdm,
                              dbs_type='m4.4xlarge',
                              loaders_type='m4.4xlarge')
          self.loaders.wait_for_init()
          self.db_cluster.wait_for_init()
          self.stress_thread = None
  
          self.payload = "/tmp/payload"
  
          self.db_cluster.run("grep -v SCYLLA_ARGS /etc/sysconfig/scylla-server > /tmp/l")
          self.db_cluster.run("""echo "SCYLLA_ARGS=\"-m 128M -c 1\"" >> /tmp/l""")
          self.db_cluster.run("sudo cp /tmp/l /etc/sysconfig/scylla-server")
          self.db_cluster.run("sudo chown root.root /etc/sysconfig/scylla-server")
          self.db_cluster.run("sudo systemctl stop scylla-server.service")
          self.db_cluster.run("sudo systemctl start scylla-server.service")
  
          self.loaders.run("sudo dnf install -y boost-program-options")
          self.loaders.run("sudo dnf install -y libuv")
          self.loaders.send_file("queries-limits", self.payload)
          self.loaders.run("chmod +x " + self.payload)
  
      def test_connection_limits(self):
          ips = self.db_cluster.get_node_private_ips()
          params = " --servers %s --duration 600 --queries 1000000" % (ips[0])
          self.run_stress(stress_cmd=(self.payload + params), duration=10)
  
  
  if __name__ == '__main__':
      main()
  
subject: Rename QueriesLimitsTest -> QueryLimitsTest