<div dir="ltr">Hi All,<div><br></div><div>We are trying to deploy Openstack in our production environment. For networking we are using DVR with out L3 HA. We are able to create 114 VMs with out any issue. After creating 114 VMs we are getting the below error.</div><div><span style="font-family:calibri,sans-serif;font-size:11pt"><br></span></div><div><span style="font-family:calibri,sans-serif;font-size:11pt">Error: <html><body><h1>504
Gateway Time-out</h1> The server didn't respond in time.
</body></html><br> </span></div><div><div>Neutron services are getting freezed up due to a persistent lock on the agents table. it seems one of the network node is holding the lock on the table. After rebooting the network node, the Neutron CLI was responsive again.</div></div><div><br></div><div>Neutron agent and neutron server is throwing below errors.</div><div><br></div><div>Neutron-server errors:</div><div>ERROR oslo_db.sqlalchemy.exc_filters "Can't reconnect until invalid "<br></div><div>ERROR oslo_db.sqlalchemy.exc_filters InvalidRequestError: Can't reconnect until invalid transaction is rolled back<br></div><div>ERROR neutron.api.v2.resource [req-24fa6eaa-a9e0-4f55-97e0-59db203e72c6 3eb776587c9c40569731ebe5c3557bc7 f43e8699cd5a46e89ffe39e3cac75341 - - -] index failed: No details.<br></div><div>ERROR neutron.api.v2.resource DBError: Can't reconnect until invalid transaction is rolled back<br></div><div><br></div><div><br></div><div>Neutron agents errors: </div><div>MessagingTimeout: Timed out waiting for a reply to message ID 40638b6bf12c44cd9a404ecaa14a9909<br></div><div><br></div><div>Could you please provide us your valuable inputs or suggestions for above errors.</div><div><br></div><div>Thanks,</div><div>Satya.P</div></div>