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Are you using l2pop?  Until https://bugs.launchpad.net/neutron/+bug/1365476
is fixed it's pretty broken.

On Tue, Dec 23, 2014 at 10:48 AM, Britt Houser (bhouser) <bhouser at cisco.com>
wrote:

>  Unfortunately I've not had a chance yet to play with neutron router HA,
> so no hints from me. =(  Can you give a little more details about "it stops
> working"?  I.e. You see packets dropped while controller 1 is down?  Do
> packets begin flowing before controller1 comes back online?  Does
> controller1 come back online successfully?  Do packets begin to flow after
> controller1 comes back online?  Perhaps that will help.
>
>  Thx,
> britt
>
>   From: Pedro Sousa <pgsousa at gmail.com>
> Date: Tuesday, December 23, 2014 at 11:14 AM
> To: Britt Houser <bhouser at cisco.com>
> Cc: "OpenStack-operators at lists.openstack.org" <
> OpenStack-operators at lists.openstack.org>
> Subject: Re: [Openstack-operators] Neutron DVR HA
>
>   I understand Britt, thanks.
>
>  So I disabled DVR and tried  to test L3_HA, but it's not working
> properly, it seems a keepalived issue. I see that it's running on 3 nodes:
>
>  [root at controller01 keepalived]# neutron l3-agent-list-hosting-router
> harouter
>
> +--------------------------------------+--------------+----------------+-------+
> | id                                   | host         | admin_state_up |
> alive |
>
> +--------------------------------------+--------------+----------------+-------+
> | 09cfad44-2bb2-4683-a803-ed70f3a46a6a | controller01 | True           |
> :-)   |
> | 58ff7c42-7e71-4750-9f05-61ad5fbc5776 | compute03    | True           |
> :-)   |
> | 8d778c6a-94df-40b7-a2d6-120668e699ca | compute02    | True           |
> :-)   |
>
> +--------------------------------------+--------------+----------------+-------+
>
>  However if I reboot one of the l3-agent nodes it stops working. I see
> this in the logs:
>
>  *Dec 23 16:12:28 Compute02 Keepalived_vrrp[18928]: ip address associated
> with VRID not present in received packet : 172.16.28.20*
> *Dec 23 16:12:28 Compute02 Keepalived_vrrp[18928]: one or more VIP
> associated with VRID mismatch actual MASTER advert*
> *Dec 23 16:12:28 Compute02 Keepalived_vrrp[18928]: bogus VRRP packet
> received on ha-a509de81-1c !!!*
> *Dec 23 16:12:28 Compute02 Keepalived_vrrp[18928]: VRRP_Instance(VR_1)
> ignoring received advertisment...*
>
>   *Dec 23 16:13:10 Compute03 Keepalived_vrrp[12501]: VRRP_Instance(VR_1)
> ignoring received advertisment...*
> *Dec 23 16:13:12 Compute03 Keepalived_vrrp[12501]: ip address associated
> with VRID not present in received packet : 172.16.28.20*
> *Dec 23 16:13:12 Compute03 Keepalived_vrrp[12501]: one or more VIP
> associated with VRID mismatch actual MASTER advert*
> *Dec 23 16:13:12 Compute03 Keepalived_vrrp[12501]: bogus VRRP packet
> received on ha-d5718741-ef !!!*
> *Dec 23 16:13:12 Compute03 Keepalived_vrrp[12501]: VRRP_Instance(VR_1)
> ignoring received advertisment...*
>
>  Any hint?
>
>  Thanks
>
>
>
>
> On Tue, Dec 23, 2014 at 3:17 PM, Britt Houser (bhouser) <bhouser at cisco.com
> > wrote:
>
>>  Currently HA and DVR are mutually exclusive features.
>>
>>   From: Pedro Sousa <pgsousa at gmail.com>
>> Date: Tuesday, December 23, 2014 at 9:42 AM
>> To: "OpenStack-operators at lists.openstack.org" <
>> OpenStack-operators at lists.openstack.org>
>> Subject: [Openstack-operators] Neutron DVR HA
>>
>>   Hi all,
>>
>>  I've been trying Neutron DVR with 2 controllers +  2 computes. When I
>> create a router I can see that is running on all the servers:
>>
>>  [root at controller01 ~]# neutron l3-agent-list-hosting-router router
>>
>> +--------------------------------------+--------------+----------------+-------+
>> | id                                   | host         | admin_state_up |
>> alive |
>>
>> +--------------------------------------+--------------+----------------+-------+
>> | 09cfad44-2bb2-4683-a803-ed70f3a46a6a | controller01 | True           |
>> :-)   |
>> | 0ca01d56-b6dd-483d-9c49-cc7209da2a5a | controller02 | True           |
>> :-)   |
>> | 52379f0f-9046-4b73-9d87-bab7f96be5e7 | compute01    | True           |
>> :-)   |
>> | 8d778c6a-94df-40b7-a2d6-120668e699ca | compute02    | True           |
>> :-)   |
>>
>> +--------------------------------------+--------------+----------------+-------+
>>
>>  However if controller01 server dies I cannot ping ip external gateway
>> anymore. Is this the expected behavior? Shouldn't it failback to the
>> another controller node?
>>
>>  Thanks
>>
>
>
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