Fix error while connecting to busy NSX L2 Gateway

Ensure that a Conflict error is properly handled.

Change-Id: Ib468ee953aef0fc54ea88064f88637ed46bc6352
Closes-bug: 1270724

diff --git a/neutron/plugins/nicira/NeutronPlugin.py b/neutron/plugins/nicira/NeutronPlugin.py
index a44b73d8df25c032b90d4db6b22fc91ce3ec6ba5..f278e1369ada6a0dbb4802b1fbbfdcf2f3e193cf 100644 (file)
--- a/neutron/plugins/nicira/NeutronPlugin.py
+++ b/neutron/plugins/nicira/NeutronPlugin.py
@@ -2028,8 +2028,11 @@ class NvpPluginV2(addr_pair_db.AllowedAddressPairsMixin,
                         network_mapping_info):
         # Ensure the default gateway in the config file is in sync with the db
         self._ensure_default_network_gateway()
-        return super(NvpPluginV2, self).connect_network(
-            context, network_gateway_id, network_mapping_info)
+        try:
+            return super(NvpPluginV2, self).connect_network(
+                context, network_gateway_id, network_mapping_info)
+        except NvpApiClient.Conflict:
+            raise nvp_exc.NvpL2GatewayAlreadyInUse(gateway=network_gateway_id)
 
     def disconnect_network(self, context, network_gateway_id,
                            network_mapping_info):