Catch all exceptions in reinit phase

In one customer setup, I noticed that ip-fabric network was deleted.
When schema transformer tried to delete the corresponding routing
instance, it got RefsExistError. We should log and ignore all error
during reinit phase to avoid such crashes.

Change-Id: I8b284ce24358d429ab2c766e2865bf66c5deb889
Closes-Bug: 1466153

src/config/schema-transformer/to_bgp.py

@@ -2745,10 +2745,9 @@ def reinit(self):
             if ri.parent_uuid not in vn_id_list:
                 delete = True
             else:
-                ri_name = ri.get_fq_name()[-1]
                 # if the RI was for a service chain and service chain no
                 # longer exists, delete the RI
-                sc_id = VirtualNetworkST._get_service_id_from_ri(ri_name)
+                sc_id = VirtualNetworkST._get_service_id_from_ri(ri.name)
                 if sc_id and sc_id not in ServiceChain:
                     delete = True
                 else:
@@ -2759,6 +2758,11 @@ def reinit(self):
                     ri_obj.delete()
                 except NoIdError:
                     pass
+                except Exception as e:
+                    _sandesh._logger.error(
+                            "Error while deleting routing instance %s: %s",
+                            ri.get_fq_name_str(), str(e))
+
         # end for ri
 
         sg_list = _vnc_lib.security_groups_list(detail=True,
@@ -2787,6 +2791,10 @@ def reinit(self):
                     _vnc_lib.access_control_list_delete(id=acl.uuid)
                 except NoIdError:
                     pass
+                except Exception as e:
+                    _sandesh._logger.error(
+                            "Error while deleting acl %s: %s",
+                            acl.uuid, str(e))
         # end for acl
 
         gevent.sleep(0.001)