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Optimize DVR related port DB query

Save order by in port query when not require fixed_ips,
and save some useless query for dvr subnet mac.

Closes-Bug: #1834308
Change-Id: I6836840edcaa5a21fd2ba9f65ffd24f7e5038fa3
changes/57/673557/6
LIU Yulong 2 years ago
parent
commit
dd96f37759
  1. 4
      neutron/api/rpc/handlers/l3_rpc.py
  2. 11
      neutron/db/db_base_plugin_common.py
  3. 41
      neutron/db/dvr_mac_db.py
  4. 9
      neutron/db/l3_dvr_db.py

4
neutron/api/rpc/handlers/l3_rpc.py

@ -295,8 +295,8 @@ class L3RpcCallback(object):
"""DVR: RPC called by dvr-agent to get all ports for subnet."""
subnet_id = kwargs.get('subnet_id')
LOG.debug("DVR: subnet_id: %s", subnet_id)
filters = {'fixed_ips': {'subnet_id': [subnet_id]}}
return self.plugin.get_ports(context, filters=filters)
return self.l3plugin.get_ports_under_dvr_connected_subnet(
context, subnet_id)
@db_api.retry_db_errors
def get_agent_gateway_port(self, context, **kwargs):

11
neutron/db/db_base_plugin_common.py

@ -201,7 +201,8 @@ class DbBasePluginCommon(object):
return db_utils.resource_fields(res, fields)
def _make_port_dict(self, port, fields=None,
process_extensions=True):
process_extensions=True,
with_fixed_ips=True):
mac = port["mac_address"]
if isinstance(mac, netaddr.EUI):
mac.dialect = netaddr.mac_unix_expanded
@ -212,11 +213,13 @@ class DbBasePluginCommon(object):
"mac_address": str(mac),
"admin_state_up": port["admin_state_up"],
"status": port["status"],
"fixed_ips": [{'subnet_id': ip["subnet_id"],
'ip_address': str(ip["ip_address"])}
for ip in port["fixed_ips"]],
"device_id": port["device_id"],
"device_owner": port["device_owner"]}
if with_fixed_ips:
res["fixed_ips"] = [
{'subnet_id': ip["subnet_id"],
'ip_address': str(
ip["ip_address"])} for ip in port["fixed_ips"]]
# Call auxiliary extend functions, if any
if process_extensions:
port_data = port

41
neutron/db/dvr_mac_db.py

@ -15,7 +15,6 @@
import netaddr
from neutron_lib.api.definitions import portbindings
from neutron_lib.callbacks import events
from neutron_lib.callbacks import registry
from neutron_lib.callbacks import resources
@ -37,6 +36,7 @@ from neutron.conf.db import l3_dvr_db
from neutron.db import models_v2
from neutron.extensions import dvr as ext_dvr
from neutron.objects import router
from neutron.plugins.ml2 import models as ml2_models
LOG = logging.getLogger(__name__)
@ -46,6 +46,18 @@ dvr_mac_db.register_db_dvr_mac_opts()
l3_dvr_db.register_db_l3_dvr_opts()
def get_ports_query_by_subnet_and_ip(context, subnet, ip_addresses=None):
query = context.session.query(models_v2.Port)
query = query.join(models_v2.IPAllocation)
query = query.filter(
models_v2.Port.id == models_v2.IPAllocation.port_id,
models_v2.IPAllocation.subnet_id == subnet)
if ip_addresses:
query = query.filter(
models_v2.IPAllocation.ip_address.in_(ip_addresses))
return query
@registry.has_registry_receivers
class DVRDbMixin(ext_dvr.DVRMacAddressPluginBase):
"""Mixin class to add dvr mac address to db_plugin_base_v2."""
@ -153,18 +165,28 @@ class DVRDbMixin(ext_dvr.DVRMacAddressPluginBase):
:param subnet: subnet id to match and extract ports of interest
:returns: list -- Ports on the given subnet in the input host
"""
host_dvr_for_dhcp = cfg.CONF.host_dvr_for_dhcp
filters = {'fixed_ips': {'subnet_id': [subnet]},
portbindings.HOST_ID: [host]}
ports_query = self.plugin._get_ports_query(context, filters=filters)
query = context.session.query(models_v2.Port)
query = query.join(ml2_models.PortBinding)
query = query.join(models_v2.IPAllocation)
query = query.filter(
models_v2.Port.id == ml2_models.PortBinding.port_id,
models_v2.Port.id == models_v2.IPAllocation.port_id,
ml2_models.PortBinding.host == host,
models_v2.IPAllocation.subnet_id == subnet)
owner_filter = or_(
models_v2.Port.device_owner.startswith(
constants.DEVICE_OWNER_COMPUTE_PREFIX),
models_v2.Port.device_owner.in_(
utils.get_other_dvr_serviced_device_owners(host_dvr_for_dhcp)))
ports_query = ports_query.filter(owner_filter)
ports_query = query.filter(owner_filter)
ports = [
self.plugin._make_port_dict(port, process_extensions=False)
self.plugin._make_port_dict(port, process_extensions=False,
with_fixed_ips=False)
for port in ports_query.all()
]
LOG.debug("Returning list of dvr serviced ports on host %(host)s"
@ -192,11 +214,10 @@ class DVRDbMixin(ext_dvr.DVRMacAddressPluginBase):
else:
ip_address = subnet_info['gateway_ip']
filter = {'fixed_ips': {'subnet_id': [subnet],
'ip_address': [ip_address]}}
query = get_ports_query_by_subnet_and_ip(
context, subnet, [ip_address])
internal_gateway_ports = query.all()
internal_gateway_ports = self.plugin.get_ports(
context, filters=filter)
if not internal_gateway_ports:
LOG.error("Could not retrieve gateway port "
"for subnet %s", subnet_info)

9
neutron/db/l3_dvr_db.py

@ -41,6 +41,7 @@ from neutron._i18n import _
from neutron.api import extensions
from neutron.common import utils as n_utils
from neutron.conf.db import l3_dvr_db
from neutron.db import dvr_mac_db
from neutron.db import l3_attrs_db
from neutron.db import l3_db
from neutron.db.models import allowed_address_pair as aap_models
@ -1257,6 +1258,14 @@ class L3_NAT_with_dvr_db_mixin(_DVRAgentInterfaceMixin,
self.get_router(context.elevated(), router_id))
return False
def get_ports_under_dvr_connected_subnet(self, context, subnet_id):
query = dvr_mac_db.get_ports_query_by_subnet_and_ip(context, subnet_id)
return [
self.l3plugin._core_plugin._make_port_dict(
port, process_extensions=False)
for port in query.all()
]
def is_distributed_router(router):
"""Return True if router to be handled is distributed."""

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