Hello Adelia: The problem you have is that there are other processes running in this host on this TCP port [1]. Try first to list what processes are using this port, stop them and then restart the OVN controller.
I'm closing this bug because it doesn't seem to be a Neutron problem but a system/backend issue. Regards. [1]https://mail.openvswitch.org/pipermail/ovs- discuss/2017-February/043597.html ** Changed in: neutron Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/2025946 Title: Neutron 504 Gateway Timeout Openstack Kolla-Ansible : Ussuri Status in neutron: Invalid Bug description: i have 3 controller openstack, but the network agent often 504 Gateway timeout. when i see neutron_server.log, this logs showed up in one of my controllers 2023-05-24 10:00:23.314 687 ERROR neutron.api.v2.resource [req-a1f3e58a-00f7-4ed9-b8e5-6c538dc5d5a3 3fe50ccef00f49e3b1b0bbd58705a930 c7d2001e7a2c4c32b9f2a3657f29b6b0 - default default] index failed: No details.: ovsdbapp.exceptions.TimeoutException: Commands [<neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.commands.CheckLivenessCommand object at 0x7f5ce81a98d0>] exceeded timeout 180 seconds 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource Traceback (most recent call last): 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource File "/var/lib/kolla/venv/lib/python3.6/site-packages/ovsdbapp/backend/ovs_idl/connection.py", line 153, in queue_txn 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource self.txns.put(txn, timeout=self.timeout) 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource File "/var/lib/kolla/venv/lib/python3.6/site-packages/ovsdbapp/backend/ovs_idl/connection.py", line 51, in put 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource super(TransactionQueue, self).put(*args, **kwargs) 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/queue.py", line 264, in put 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource result = waiter.wait() 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/queue.py", line 141, in wait 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource return get_hub().switch() 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 298, in switch 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource return self.greenlet.switch() 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource queue.Full 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource During handling of the above exception, another exception occurred: 2023-07-05 09:49:03.453 670 ERROR neutron.api.v2.resource How do i solve this? To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/2025946/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
