# octavia.common.stats

# Source code for octavia.common.stats

    # Copyright 2016 IBM
    #
    #    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.

    from oslo_log import log as logging

    from octavia.common import constants
    from octavia.common import data_models
    from octavia.db import repositories as repo

    LOG = logging.getLogger(__name__)

    class StatsMixin(object):

        def __init__(self):
            super().__init__()
            self.listener_stats_repo = repo.ListenerStatisticsRepository()
            self.repo_amphora = repo.AmphoraRepository()
            self.repo_loadbalancer = repo.LoadBalancerRepository()

        def get_listener_stats(self, session, listener_id):
            """Gets the listener statistics data_models object."""
            db_ls, _ = self.listener_stats_repo.get_all(
                session, listener_id=listener_id)
            if not db_ls:
                LOG.warning("Listener Statistics for Listener %s was not found",
                            listener_id)

            statistics = data_models.ListenerStatistics(listener_id=listener_id)

            for db_l in db_ls:
                statistics += db_l

                amp = self.repo_amphora.get(session, id=db_l.amphora_id)
                # Amphora ID and Listener ID will be the same in the case that the
                # stats are coming from a provider driver other than the `amphora`
                # driver. In that case and when the current amphora is ALLOCATED
                # are the only times we should include the *active* connections,
                # because non-active amphora will have incorrect counts.
                if (amp and amp.status == constants.AMPHORA_ALLOCATED) or (
                        db_l.amphora_id == db_l.listener_id):
                    statistics.active_connections += db_l.active_connections
            return statistics

        def get_loadbalancer_stats(self, session, loadbalancer_id):
            statistics = data_models.LoadBalancerStatistics()
            lb_db = self.repo_loadbalancer.get(session, id=loadbalancer_id)

            for listener in lb_db.listeners:
                data = self.get_listener_stats(session, listener.id)
                statistics.bytes_in += data.bytes_in
                statistics.bytes_out += data.bytes_out
                statistics.request_errors += data.request_errors
                statistics.active_connections += data.active_connections
                statistics.total_connections += data.total_connections
                statistics.listeners.append(data)
            return statistics

this page last updated: 2026-03-10 21:33:29

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