I patched my api.py to revert the db_pool complexities, but it still gives error like this when spawning 25+ instances at once:
2011-10-06 16:36:58,945 DEBUG nova.network.manager [6bf528ce-4e3d-4061-bd3b-1d25602a59ef None None] Leased IP |10.0.0.24| from (pid=27883) lease_fixed_ip /usr/lib/python2.7/dist-packages/nova/network/manager.py:645 ERROR nova.rpc [-] Exception during message handling (nova.rpc): TRACE: Traceback (most recent call last): (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 620, in _process_data (nova.rpc): TRACE: rval = node_func(context=ctxt, **node_args) (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/nova/network/manager.py", line 221, in allocate_for_instance (nova.rpc): TRACE: ips = super(FloatingIP, self).allocate_for_instance(context, **kwargs) (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/nova/network/manager.py", line 444, in allocate_for_instance (nova.rpc): TRACE: requested_networks=requested_networks) (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/nova/network/manager.py", line 171, in _allocate_fixed_ips (nova.rpc): TRACE: vpn=vpn, address=address) (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/nova/network/manager.py", line 615, in allocate_fixed_ip (nova.rpc): TRACE: instance_id) (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/nova/db/api.py", line 347, in fixed_ip_associate_pool (nova.rpc): TRACE: instance_id, host) (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/nova/db/sqlalchemy/api.py", line 101, in wrapper (nova.rpc): TRACE: return f(*args, **kwargs) (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/nova/db/sqlalchemy/api.py", line 724, in fixed_ip_associate_pool (nova.rpc): TRACE: # then this has concurrency issues (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 1652, in first (nova.rpc): TRACE: ret = list(self[0:1]) (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 1560, in __getitem__ (nova.rpc): TRACE: return list(res) (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 1823, in instances (nova.rpc): TRACE: fetch = cursor.fetchall() (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 2528, in fetchall (nova.rpc): TRACE: l = self.process_rows(self._fetchall_impl()) (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 2497, in _fetchall_impl (nova.rpc): TRACE: self._non_result() (nova.rpc): TRACE: File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 2502, in _non_result (nova.rpc): TRACE: "This result object does not return rows. " (nova.rpc): TRACE: ResourceClosedError: This result object does not return rows. It has been closed automatically. (nova.rpc): TRACE: ERROR nova.rpc [-] Returning exception This result object does not return rows. It has been closed automatically. to caller -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/838581 Title: Failures in db_pool code: 'NoneType' object has no attribute '_keymap' or not returning rows. To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/838581/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
