[Openstack-operators] [Large deployments] Neutron issues in Openstack Large deployment using DVR

Saverio Proto zioproto at gmail.com
Tue Feb 21 18:51:46 UTC 2017


Hello Satya,

I would fill a bug on launchpad for this issue.
114 VMs is not much. Can you identify how to trigger the issue to
reproduce it ? or it just happens randomly ?

When you say rebooting the network node, do you mean the server
running the neutron-server process ?

what version and distribution of openstack are you using ?

thank you

Saverio


2017-02-21 13:54 GMT+01:00 Satyanarayana Patibandla
<satya.patibandla at gmail.com>:
> Hi All,
>
> 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.
>
> Error: <html><body><h1>504 Gateway Time-out</h1> The server didn't respond
> in time. </body></html>
>
> 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.
>
> Neutron agent and neutron server is throwing below errors.
>
> Neutron-server errors:
> ERROR oslo_db.sqlalchemy.exc_filters     "Can't reconnect until invalid "
> ERROR oslo_db.sqlalchemy.exc_filters InvalidRequestError: Can't reconnect
> until invalid transaction is rolled back
> ERROR neutron.api.v2.resource [req-24fa6eaa-a9e0-4f55-97e0-59db203e72c6
> 3eb776587c9c40569731ebe5c3557bc7 f43e8699cd5a46e89ffe39e3cac75341 - - -]
> index failed: No details.
> ERROR neutron.api.v2.resource DBError: Can't reconnect until invalid
> transaction is rolled back
>
>
> Neutron agents errors:
> MessagingTimeout: Timed out waiting for a reply to message ID
> 40638b6bf12c44cd9a404ecaa14a9909
>
> Could you please provide us your valuable inputs or suggestions for above
> errors.
>
> Thanks,
> Satya.P
>
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