Prevent unnecessary database read by l3 agent

Fixes bug 1088129 Change-Id: I887facf321f3267c16c101a1448827f6c046bb2c
2012-12-09 06:33:13 +00:00 · 2012-12-09 06:33:13 +00:00 · 340684b4dd
commit 340684b4dd
parent 61a5870b71
1 changed files with 2 additions and 0 deletions
--- a/quantum/db/l3_db.py
+++ b/quantum/db/l3_db.py
@ -864,6 +864,8 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
            my_ports = subnet_id_ports_dict.get(fixed_ip['subnet_id'], [])
            my_ports.append(port)
            subnet_id_ports_dict[fixed_ip['subnet_id']] = my_ports
+        if not subnet_id_ports_dict:
+            return
        filters = {'id': subnet_id_ports_dict.keys()}
        fields = ['id', 'cidr', 'gateway_ip']
        subnet_dicts = self.get_subnets(context, filters, fields)