openstack
/
neutron
Code Issues Proposed changes

Join tables in query for down L3 agents 

Join the agent table together with the L3 agent scheduler
table. This fixes an issue where the query would return
all admin_state_up L3 agents with router bindings when
any agent in the database was dead (missed heartbeats)
instead of just returning the dead L3 agents with bindings.

Closes-Bug: #1359460
Change-Id: I29215f81be7e3513155faaad015e24dbf1a1ad5d
This commit is contained in:
Kevin Benton 2014-08-19 15:15:09 -07:00
parent 50126be5ba
commit 30c219f682
2 changed files with 14 additions and 0 deletions
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1
neutron/db/l3_agentschedulers_db.py
View File

@ -110,6 +110,7 @@ class L3AgentSchedulerDbMixin(l3agentscheduler.L3AgentSchedulerPluginBase,
seconds=agent_dead_limit)
down_bindings = (
context.session.query(RouterL3AgentBinding).
join(agents_db.Agent).
filter(agents_db.Agent.heartbeat_timestamp < cutoff,
agents_db.Agent.admin_state_up))
for binding in down_bindings:

13
neutron/tests/unit/openvswitch/test_agent_scheduler.py
View File

@ -643,6 +643,19 @@ class OvsAgentSchedulerTestCase(OvsAgentSchedulerTestCaseBase):
agt_db.admin_state_up = state
self.adminContext.session.commit()
def test_router_is_not_rescheduled_from_alive_agent(self):
with self.router():
l3_rpc = l3_rpc_base.L3RpcCallbackMixin()
self._register_agent_states()
# schedule the router to host A
l3_rpc.sync_routers(self.adminContext, host=L3_HOSTA)
with mock.patch('neutron.db.l3_agentschedulers_db.'
'L3AgentSchedulerDbMixin.reschedule_router') as rr:
# take down some unrelated agent and run reschedule check
self._take_down_agent_and_run_reschedule(DHCP_HOSTC)
self.assertFalse(rr.called)
def test_router_reschedule_from_dead_agent(self):
with self.router():
l3_rpc = l3_rpc_base.L3RpcCallbackMixin()