# See the License for the specific language governing permissions and
# limitations under the License.
+import errno
import logging
-import multiprocessing
-import os
+import datetime
import time
-from yardstick.network_services.vnf_generic.vnf.base import QueueFileWrapper
-from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxResourceHelper
+
+from yardstick.common.process import check_if_process_failed
from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxDpdkVnfSetupEnvHelper
+from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxResourceHelper
from yardstick.network_services.vnf_generic.vnf.sample_vnf import SampleVNF
+from yardstick.network_services.constants import PROCESS_JOIN_TIMEOUT
LOG = logging.getLogger(__name__)
if resource_helper_type is None:
resource_helper_type = ProxResourceHelper
+ self.prev_packets_in = 0
+ self.prev_packets_sent = 0
+ self.prev_time = time.time()
super(ProxApproxVnf, self).__init__(name, vnfd, setup_env_helper_type,
resource_helper_type)
- self._result = {}
- self._terminated = multiprocessing.Value('i', 0)
- self._queue = multiprocessing.Value('i', 0)
-
- def instantiate(self, scenario_cfg, context_cfg):
- LOG.info("printing .........prox instantiate ")
-
- self.scenario_helper.scenario_cfg = scenario_cfg
-
- # this won't work we need 1GB hugepages at boot
- self.setup_helper.setup_vnf_environment()
-
- # self.connection.run("cat /proc/cpuinfo")
-
- prox_args, prox_path, remote_path = self.resource_helper.get_process_args()
-
- self.q_in = multiprocessing.Queue()
- self.q_out = multiprocessing.Queue()
- self.queue_wrapper = QueueFileWrapper(self.q_in, self.q_out, "PROX started")
- self._vnf_process = multiprocessing.Process(target=self._run_prox,
- args=(remote_path, prox_path, prox_args))
- self._vnf_process.start()
def _vnf_up_post(self):
self.resource_helper.up_post()
- def _run_prox(self, file_wrapper, config_path, prox_path, prox_args):
- # This runs in a different process and should not share an SSH connection
- # with the rest of the object
- self.ssh_helper.drop_connection()
-
- time.sleep(self.WAIT_TIME)
-
- args = " ".join(" ".join([k, v if v else ""]) for k, v in prox_args.items())
-
- cmd_template = "sudo bash -c 'cd {}; {} -o cli {} -f {} '"
- prox_cmd = cmd_template.format(os.path.dirname(prox_path), prox_path, args, config_path)
-
- LOG.debug(prox_cmd)
- self.ssh_helper.run(prox_cmd, stdin=file_wrapper, stdout=file_wrapper,
- keep_stdin_open=True, pty=False)
-
- def vnf_execute(self, cmd, wait_time=2):
+ def vnf_execute(self, cmd, *args, **kwargs):
# try to execute with socket commands
- self.resource_helper.execute(cmd)
+ # ignore socket errors, e.g. when using force_quit
+ ignore_errors = kwargs.pop("_ignore_errors", False)
+ try:
+ return self.resource_helper.execute(cmd, *args, **kwargs)
+ except OSError as e:
+ if e.errno in {errno.EPIPE, errno.ESHUTDOWN, errno.ECONNRESET}:
+ if ignore_errors:
+ LOG.debug("ignoring vnf_execute exception %s for command %s", e, cmd)
+ else:
+ raise
+ else:
+ raise
def collect_kpi(self):
+ # we can't get KPIs if the VNF is down
+ check_if_process_failed(self._vnf_process)
+
if self.resource_helper is None:
result = {
"packets_in": 0,
}
return result
- if len(self.vnfd_helper.interfaces) not in {2, 4}:
+ # use all_ports so we only use ports matched in topology
+ port_count = len(self.vnfd_helper.port_pairs.all_ports)
+ if port_count not in {1, 2, 4}:
raise RuntimeError("Failed ..Invalid no of ports .. "
- "2 or 4 ports only supported at this time")
+ "1, 2 or 4 ports only supported at this time")
+
+ self.port_stats = self.vnf_execute('port_stats', range(port_count))
+ curr_time = time.time()
+ try:
+ rx_total = self.port_stats[6]
+ tx_total = self.port_stats[7]
+ except IndexError:
+ LOG.debug("port_stats parse fail ")
+ # return empty dict so we don't mess up existing KPIs
+ return {}
- port_stats = self.resource_helper.execute('port_stats', self.vnfd_helper.interfaces)
- rx_total = port_stats[6]
- tx_total = port_stats[7]
result = {
- "packets_in": tx_total,
- "packets_dropped": (tx_total - rx_total),
- "packets_fwd": rx_total,
- "collect_stats": self.resource_helper.collect_kpi(),
+ "packets_in": rx_total,
+ "packets_dropped": max((tx_total - rx_total), 0),
+ "packets_fwd": tx_total,
+ # we share ProxResourceHelper with TG, but we want to collect
+ # collectd KPIs here and not TG KPIs, so use a different method name
+ "collect_stats": self.resource_helper.collect_collectd_kpi(),
}
+ curr_packets_in = int((rx_total - self.prev_packets_in) / (curr_time - self.prev_time))
+ curr_packets_fwd = int((tx_total - self.prev_packets_sent) / (curr_time - self.prev_time))
+
+ result["curr_packets_in"] = curr_packets_in
+ result["curr_packets_fwd"] = curr_packets_fwd
+
+ self.prev_packets_in = rx_total
+ self.prev_packets_sent = tx_total
+ self.prev_time = curr_time
+
+ LOG.debug("%s collect KPIs %s %s", self.APP_NAME, datetime.datetime.now(), result)
return result
def _tear_down(self):
- self.setup_helper.rebind_drivers()
+ # this should be standardized for all VNFs or removed
+ self.setup_helper.tear_down()
+
+ def terminate(self):
+ # stop collectd first or we get pika errors?
+ self.resource_helper.stop_collect()
+ # try to quit with socket commands
+ # pkill is not matching, debug with pgrep
+ self.ssh_helper.execute("sudo pgrep -lax %s" % self.setup_helper.APP_NAME)
+ self.ssh_helper.execute("sudo ps aux | grep -i %s" % self.setup_helper.APP_NAME)
+ if self._vnf_process.is_alive():
+ self.vnf_execute("stop_all")
+ self.vnf_execute("quit")
+ # hopefully quit succeeds and socket closes, so ignore force_quit socket errors
+ self.vnf_execute("force_quit", _ignore_errors=True)
+ self.setup_helper.kill_vnf()
+ self._tear_down()
+ if self._vnf_process is not None:
+ LOG.debug("joining before terminate %s", self._vnf_process.name)
+ self._vnf_process.join(PROCESS_JOIN_TIMEOUT)
+ self._vnf_process.terminate()
Code Review / yardstick.git / blobdiff