On Thu, Oct 21, 2021 at 6:43 AM Brendan Doyle <[email protected]> wrote:
>
>
>
> On 20/10/2021 21:29, Numan Siddique wrote:
> > On Mon, Oct 18, 2021 at 7:55 AM Daniel Alvarez Sanchez
> > <[email protected]> wrote:
> >>
> >>
> >> On Mon, Oct 18, 2021 at 1:12 PM Ammad Syed <[email protected]> wrote:
> >>> Hi Brendan,
> >>>
> >>> Not sure but this could be related to the patch below in neutron that was
> >>> recently released.
> >>>
> >>> https://urldefense.com/v3/__https://opendev.org/openstack/neutron/commit/f6c35527698119ee6f73a6a3613c9beebb563840__;!!ACWV5N9M2RV99hQ!fKjD2ymIm0WKBrKvJ-6cjyKvYNJHCXYBXsL0nhWde_anAW_7exk9teq3h2_dRqFH1OI$
> >>
> >> Not really, as this commit that you refer to is to reduce the memory
> >> footprint in the neutron-server process itself. Neutron never inserts
> >> anything into the MAC_Binding table.
> >> However, we landed another patch [0] that will likely minimize this issue
> >> as it will reduce the MAC_Binding insertions, limiting them only to MAC
> >> addresses that need to be reached out by the overlay.
> >>
> >> Thanks!
> >> daniel
> >>
> >> [0]
> >> https://urldefense.com/v3/__https://review.opendev.org/c/openstack/neutron/*/813610__;Kw!!ACWV5N9M2RV99hQ!fKjD2ymIm0WKBrKvJ-6cjyKvYNJHCXYBXsL0nhWde_anAW_7exk9teq3h2_dIMoCVyw$
> >>
> >>
> >>>
> >>> Ammad
> >>>
> >>> On Mon, Oct 18, 2021 at 3:40 PM Brendan Doyle <[email protected]>
> >>> wrote:
> >>>>
> >>>> I too am seeing many entries in the ovn-controller log like these:
> >>>>
> >>>> ovn/ovn-controller.log:2021-10-18T09:50:46.984Z|00164|ovsdb_idl|WARN|transaction
> >>>> error: {"details":"Transaction causes multiple rows in \"MAC_Binding\"
> >>>> table to have identical values (lr_vcn6727324-ls_vcn6727324_external_ugw
> >>>> and \"253.255.80.18\") for index on columns \"logical_port\" and \"ip\".
> >>>> First row, with UUID 614509d1-5dfc-4268-94b7-6190c1bd8c58, was inserted
> >>>> by this transaction. Second row, with UUID
> >>>> 5b56044f-7e62-4e6b-b559-2bca31ad5ab0, existed in the database before
> >>>> this transaction and was not modified by the
> >>>> transaction.","error":"constraint violation"}
> >>>>
> >>>>
> >>>> So with my limited understanding of the MAC_Binding table I'm wondering
> >>>> are these benign?
> >>
> >> I think it's benign
> >>>>
> >>>> In that is it that we for what ever reason have decided that we need to
> >>>> do an ARP to discover
> >>>> a MAC, then ovn-controller tries to add the discovered MAC to the
> >>>> MAC_Binding only to find
> >>>> that it is already there. In which case the question is why was an ARP
> >>>> request sent when
> >>>> we already had a MAC binding.
> > FYI, ovn-controller also learns from the ARP requests received from
> > external which can be
> > turned off if desired with the option - always_learn_from_arp_request
> > set in the logical router's options
> > column.
> >
> > I don't think ovn-controller will generate an ARP request if its
> > already learnt. Looks to me
> > multiple ovn-controller try to learn from an ARP request originated
> > from external and ofcourse
> > only one will be able to write to the mac_binding entry and others would
> > fail.
>
> Yes that is possible, in which case the warnings are benign right?
Right. I'd ignore these warnings.
Numan
>
> > Thanks
> > Numan
> >
> >
> >
> >>>> For me these are only ever seen on Distributed router Port Gateways.
> >>>>
> >>>>
> >>>> On 12/10/2021 13:06, Ammad Syed wrote:
> >>>>
> >>>> Hi,
> >>>>
> >>>> I am using openstack with ml2/ovn. I have two gateway chassis whenever I
> >>>> shutdown one chassis and bring it back online, I see below error in
> >>>> ovn-controller logs.
> >>>>
> >>>> Can you please advise the way to fix it ?
> >>>>
> >>>> 2021-10-12T11:49:22.124Z|00511|binding|INFO|cr-lrp-4c882760-15b1-4cf4-b680-53e88880e928:
> >>>> Claiming fa:16:3e:55:12:5a 101.53.244.97/24
> >>>> 2021-10-12T11:49:22.126Z|00512|binding|INFO|Releasing lport
> >>>> cr-lrp-4c882760-15b1-4cf4-b680-53e88880e928 from this chassis.
> >>>> 2021-10-12T11:50:32.032Z|00513|ovsdb_idl|WARN|transaction error:
> >>>> {"details":"Transaction causes multiple rows in \"MAC_Binding\" table to
> >>>> have identical values (lrp-4c882760-15b1-4cf4-b680-53e88880e928 and
> >>>> \"fe80::6a4f:64ff:fef7:8c0\") for index on columns \"logical_port\" and
> >>>> \"ip\". First row, with UUID cbc847e6-75e4-4d73-9906-4fef221cad38, was
> >>>> inserted by this transaction. Second row, with UUID
> >>>> bcac2e3e-5f32-411a-afcf-3249b85700f4, existed in the database before
> >>>> this transaction and was not modified by the
> >>>> transaction.","error":"constraint violation"}
> >>>>
> >>>> Ammad
> >>>>
> >>>> _______________________________________________
> >>>> discuss mailing list
> >>>> [email protected]
> >>>> https://urldefense.com/v3/__https://mail.openvswitch.org/mailman/listinfo/ovs-discuss__;!!ACWV5N9M2RV99hQ!eo4L8XZbywCy0zb_p7-7LEVv9xl6g9V8JEf6oZTAO21scCtNAudRSGcK9mYnI7H-cyA$
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> discuss mailing list
> >>>> [email protected]
> >>>> https://urldefense.com/v3/__https://mail.openvswitch.org/mailman/listinfo/ovs-discuss__;!!ACWV5N9M2RV99hQ!fKjD2ymIm0WKBrKvJ-6cjyKvYNJHCXYBXsL0nhWde_anAW_7exk9teq3h2_detQnyEU$
> >>>
> >>>
> >>> --
> >>> Regards,
> >>>
> >>>
> >>> Syed Ammad Ali
> >>> _______________________________________________
> >>> discuss mailing list
> >>> [email protected]
> >>> https://urldefense.com/v3/__https://mail.openvswitch.org/mailman/listinfo/ovs-discuss__;!!ACWV5N9M2RV99hQ!fKjD2ymIm0WKBrKvJ-6cjyKvYNJHCXYBXsL0nhWde_anAW_7exk9teq3h2_detQnyEU$
> >> _______________________________________________
> >> discuss mailing list
> >> [email protected]
> >> https://urldefense.com/v3/__https://mail.openvswitch.org/mailman/listinfo/ovs-discuss__;!!ACWV5N9M2RV99hQ!fKjD2ymIm0WKBrKvJ-6cjyKvYNJHCXYBXsL0nhWde_anAW_7exk9teq3h2_detQnyEU$
> > _______________________________________________
> > discuss mailing list
> > [email protected]
> > https://urldefense.com/v3/__https://mail.openvswitch.org/mailman/listinfo/ovs-discuss__;!!ACWV5N9M2RV99hQ!fKjD2ymIm0WKBrKvJ-6cjyKvYNJHCXYBXsL0nhWde_anAW_7exk9teq3h2_detQnyEU$
>
> _______________________________________________
> discuss mailing list
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> https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
>
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