Workaround failing UT for asr1k router type driver
This patch disables the pre_backlog_processing function during the asr1k_routertype_driver unit tests as it is causing intermittent failures. Once there is a root cause fix for the failures this workaround will be removed. Partial-Bug: #1676435 Change-Id: I6ced1d98184089d62f76856e5ca84fbb42164ac9
This commit is contained in:
Bob Melander
parent
e27ec5a03b
commit
0ac6a2ec0a
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@ -405,8 +405,7 @@ class L3RouterApplianceDBMixin(extraroute_db.ExtraRoute_dbonly_mixin):
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with excutils.save_and_reraise_exception():
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# put router back in backlog if deletion failed so that it
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# gets reinstated
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LOG.exception(_LE("Deletion of router %s failed. It will be "
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"re-hosted."), router_id)
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LOG.error(_LE("Deletion of router %s failed."), router_id)
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if was_hosted is True or r_hd_binding_db.auto_schedule is True:
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LOG.info(_LI("Router %s will be re-hosted."), router_id)
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self.backlog_router(context, r_hd_binding_db)
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@ -24,7 +24,7 @@ from neutron.extensions import l3
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from neutron_lib import constants as l3_constants
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from neutron_lib import exceptions as n_exc
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from networking_cisco._i18n import _, _LW
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from networking_cisco._i18n import _, _LI
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from networking_cisco import backwards_compatibility as bc
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from networking_cisco.plugins.cisco.common import cisco_constants
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from networking_cisco.plugins.cisco.db.l3 import ha_db
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@ -195,6 +195,7 @@ class ASR1kL3RouterDriver(drivers.L3RouterBaseDriver):
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return group_id
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def pre_backlog_processing(self, context):
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LOG.info(_LI('Performing pre-backlog processing'))
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filters = {routerrole.ROUTER_ROLE_ATTR: [ROUTER_ROLE_GLOBAL]}
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global_routers = self._l3_plugin.get_routers(context, filters=filters)
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if not global_routers:
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@ -214,9 +215,9 @@ class ASR1kL3RouterDriver(drivers.L3RouterBaseDriver):
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{'name': gr['name'], 'id': gr['id'],
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'hd': gr[HOSTING_DEVICE_ATTR], 'num': num_rtrs, })
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if num_rtrs == 0:
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LOG.warning(
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_LW("Global router:%(name)s[id:%(id)s] is present for "
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"hosting device:%(hd)s but there are no tenant or "
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LOG.info(
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_LI("Global router %(name)s[id:%(id)s] is present for "
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"hosting device %(hd)s but there are no tenant or "
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"redundancy routers with gateway set on that hosting "
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"device. Proceeding to delete global router."),
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{'name': gr['name'], 'id': gr['id'],
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@ -531,7 +532,10 @@ class ASR1kL3RouterDriver(drivers.L3RouterBaseDriver):
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self._core_plugin.delete_port(context, port['id'],
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l3_port_check=False)
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except (exc.ObjectDeletedError, n_exc.PortNotFound) as e:
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LOG.warning(e)
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LOG.info(_LI('Unable to delete port for Global router '
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'%(r_id). It has likely been concurrently '
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'deleted. %(err)s'), {'r_id': router_id,
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'err': e})
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def _delete_global_router(self, context, global_router_id, logical=False):
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# ensure we clean up any stale auxiliary gateway ports
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@ -547,7 +551,10 @@ class ASR1kL3RouterDriver(drivers.L3RouterBaseDriver):
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self._l3_plugin.delete_router(
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context, global_router_id, unschedule=False)
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except (exc.ObjectDeletedError, l3.RouterNotFound) as e:
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LOG.warning(e)
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g_r_type = 'Logical Global' if logical is True else 'Global'
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LOG.info(_LI('Unable to delete %(g_r_type)s router. It has likely '
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'been concurrently deleted. %(err)s'),
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{'g_r_type': g_r_type, 'err': e})
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def _get_gateway_routers_count(self, context, ext_net_id, routertype_id,
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router_role, hosting_device_id=None):
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@ -16,23 +16,31 @@ import copy
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import mock
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from oslo_config import cfg
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from oslo_log import log as logging
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from oslo_utils import uuidutils
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from sqlalchemy.orm import exc as db_exc
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from webob import exc
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from neutron.extensions import l3
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from networking_cisco import backwards_compatibility as bc
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from networking_cisco.plugins.cisco.common import cisco_constants
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from networking_cisco.plugins.cisco.db.l3.l3_router_appliance_db import (
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L3RouterApplianceDBMixin)
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from networking_cisco.plugins.cisco.extensions import ha
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from networking_cisco.plugins.cisco.extensions import routerhostingdevice
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from networking_cisco.plugins.cisco.extensions import routerrole
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from networking_cisco.plugins.cisco.extensions import routertype
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from networking_cisco.plugins.cisco.extensions import routertypeawarescheduler
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from networking_cisco.plugins.cisco.l3.drivers.asr1k import (
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asr1k_routertype_driver as drv)
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from networking_cisco.tests.unit.cisco.l3 import (
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test_ha_l3_router_appliance_plugin as cisco_ha_test)
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from networking_cisco.tests.unit.cisco.l3 import (
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test_l3_routertype_aware_schedulers as cisco_test_case)
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LOG = logging.getLogger(__name__)
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_uuid = uuidutils.generate_uuid
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@ -52,6 +60,9 @@ ROUTER_ROLE_ATTR = routerrole.ROUTER_ROLE_ATTR
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HOSTING_DEVICE_ATTR = routerhostingdevice.HOSTING_DEVICE_ATTR
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AUTO_SCHEDULE_ATTR = routertypeawarescheduler.AUTO_SCHEDULE_ATTR
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TestSchedulingL3RouterApplianceExtensionManager = (
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cisco_test_case.TestSchedulingL3RouterApplianceExtensionManager)
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class Asr1kRouterTypeDriverTestCase(
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cisco_test_case.L3RoutertypeAwareHostingDeviceSchedulerTestCaseBase):
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@ -61,6 +72,23 @@ class Asr1kRouterTypeDriverTestCase(
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# that router type in the test setup which makes scheduling deterministic
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router_type = 'Nexus_ToR_Neutron_router'
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def setUp(self, core_plugin=None, l3_plugin=None, dm_plugin=None,
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ext_mgr=None):
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if l3_plugin is None:
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l3_plugin = cisco_test_case.L3_PLUGIN_KLASS
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if ext_mgr is None:
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ext_mgr = TestSchedulingL3RouterApplianceExtensionManager()
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super(Asr1kRouterTypeDriverTestCase, self).setUp(
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core_plugin, l3_plugin, dm_plugin, ext_mgr)
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#TODO(bobmel): Remove this mock once bug/#1676435 is fixed
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def noop_pre_backlog_processing(context):
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LOG.debug('No-op pre_backlog_processing during UTs')
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mock.patch('networking_cisco.plugins.cisco.l3.drivers.asr1k'
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'.asr1k_routertype_driver.ASR1kL3RouterDriver'
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'.pre_backlog_processing', new=noop_pre_backlog_processing)
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def _verify_global_router(self, role, hd_id, ext_net_ids):
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# The 'ext_net_ids' argument is a dict where key is ext_net_id and
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# value is a list of subnet_ids that the global router should be
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@ -678,6 +706,92 @@ class Asr1kRouterTypeDriverTestCase(
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self._test_router_update_unset_msn_gw(same_tenant=False,
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same_ext_net=False)
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def _test_router_update_unset_msn_gw_concurrent(
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self, delete_global=True, delete_ports=False,
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delete_logical=False):
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def _concurrent_delete_global_router(local_self, context,
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global_router_id, logical=False):
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if delete_ports is True:
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delete_p_fcn(local_self, context, global_router_id)
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try:
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if logical is True:
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if delete_logical is True:
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super(L3RouterApplianceDBMixin,
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self.l3_plugin).delete_router(context,
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global_router_id)
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else:
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if delete_global is True:
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self.l3_plugin.delete_router(
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context, global_router_id, unschedule=False)
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except (db_exc.ObjectDeletedError, l3.RouterNotFound) as e:
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LOG.warning(e)
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delete_gr_fcn(local_self, context, global_router_id, logical)
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set_context = False
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tenant_id = _uuid()
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with self.network(tenant_id=tenant_id) as msn_n_external:
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msn_ext_net_id = msn_n_external['network']['id']
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self._set_net_external(msn_ext_net_id)
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sn_1 = self._make_subnet(
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self.fmt, msn_n_external, '10.0.1.1', cidr='10.0.1.0/24',
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tenant_id=tenant_id)['subnet']
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sn_2 = self._make_subnet(
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self.fmt, msn_n_external, '20.0.1.1', cidr='20.0.1.0/24',
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tenant_id=tenant_id)['subnet']
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ext_gw_subnets = [sn_1['id'], sn_2['id']]
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ext_net_ids = {msn_ext_net_id: ext_gw_subnets}
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ext_gw = {
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'network_id': msn_ext_net_id,
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'external_fixed_ips': [{'subnet_id': sid}
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for sid in ext_gw_subnets]}
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with self.router(tenant_id=tenant_id,
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external_gateway_info=ext_gw,
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set_context=set_context) as router:
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r = router['router']
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# backlog processing will trigger one routers_updated
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# notification containing r1 and r2
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self.l3_plugin._process_backlogged_routers()
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r_after = self._show('routers', r['id'])['router']
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hd_id = r_after[HOSTING_DEVICE_ATTR]
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r_ids = {r['id']}
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# should have one global router now
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self._verify_routers(r_ids, ext_net_ids, hd_id)
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ext_gw['external_fixed_ips'] = [{'subnet_id': sn_1['id']}]
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r_spec = {'router': {l3.EXTERNAL_GW_INFO: ext_gw}}
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r_after_2 = self._update('routers', r['id'], r_spec)['router']
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res_ips = r_after_2[l3.EXTERNAL_GW_INFO]['external_fixed_ips']
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self.assertEqual(1, len(res_ips))
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self.assertEqual(sn_1['id'], res_ips[0]['subnet_id'])
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# should still have one global router
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self._verify_routers(r_ids, ext_net_ids, hd_id)
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# now we simulate that there is another router with similar
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# gateway that is unset concurrently and that its REST API
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# thread manages to delete the global router
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r_spec = {'router': {l3.EXTERNAL_GW_INFO: None}}
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delete_gr_fcn = drv.ASR1kL3RouterDriver._delete_global_router
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delete_p_fcn = (
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drv.ASR1kL3RouterDriver._delete_auxiliary_gateway_ports)
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with mock.patch(
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'networking_cisco.plugins.cisco.l3.drivers.asr1k'
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'.asr1k_routertype_driver.ASR1kL3RouterDriver'
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'._delete_global_router',
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new=_concurrent_delete_global_router):
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self._update('routers', r['id'], r_spec)
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# should have no global router now
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self._verify_routers(r_ids, ext_net_ids)
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def test_router_update_unset_msn_gw_concurrent_global_delete(self):
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self._test_router_update_unset_msn_gw_concurrent()
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def test_router_update_unset_msn_gw_concurrent_global_port_delete(self):
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self._test_router_update_unset_msn_gw_concurrent(delete_ports=True)
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def test_router_update_unset_msn_gw_concurrent_port_delete(self):
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self._test_router_update_unset_msn_gw_concurrent(delete_global=False,
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delete_ports=True)
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def _test_delete_gateway_router(self, set_context=False, same_tenant=True,
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same_ext_net=True):
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self._test_router_update_unset_gw_or_delete(
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