Open Stack

Hi,
Agents upgrade support will be common requirements which we needs to address on priority.

Regards,
Keshava

-----Original Message-----
From: Kyle Mestery [mailto:mestery at mestery.com] 
Sent: Wednesday, October 29, 2014 8:47 PM
To: OpenStack Development Mailing List (not for usage questions)
Subject: Re: [openstack-dev] [neutron] Clear all flows when ovs agent start? why and how avoid?

On Wed, Oct 29, 2014 at 7:25 AM, Hly <henry4hly at gmail.com> wrote:
>
>
> Sent from my iPad
>
> On 2014-10-29, at 下午8:01, Robert van Leeuwen <Robert.vanLeeuwen at spilgames.com> wrote:
>
>>>> I find our current design is remove all flows then add flow by 
>>>> entry, this will cause every network node will break off all 
>>>> tunnels between other network node and all compute node.
>>> Perhaps a way around this would be to add a flag on agent startup 
>>> which would have it skip reprogramming flows. This could be used for 
>>> the upgrade case.
>>
>> I hit the same issue last week and filed a bug here:
>> https://bugs.launchpad.net/neutron/+bug/1383674
>>
>> From an operators perspective this is VERY annoying since you also cannot push any config changes that requires/triggers a restart of the agent.
>> e.g. something simple like changing a log setting becomes a hassle.
>> I would prefer the default behaviour to be to not clear the flows or at the least an config option to disable it.
>>
>
> +1, we also suffered from this even when a very little patch is done
>
I'd really like to get some input from the tripleo folks, because they were the ones who filed the original bug here and were hit by the agent NOT reprogramming flows on agent restart. It does seem fairly obvious that adding an option around this would be a good way forward, however.

Thanks,
Kyle

>>
>> Cheers,
>> Robert van Leeuwen
>> _______________________________________________
>> OpenStack-dev mailing list
>> OpenStack-dev at lists.openstack.org
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>
> _______________________________________________
> OpenStack-dev mailing list
> OpenStack-dev at lists.openstack.org
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev

_______________________________________________
OpenStack-dev mailing list
OpenStack-dev at lists.openstack.org
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev