[openstack-dev] [Neutron] L3-HA - Solution for GW not pingable issue bug/1365461

Anna Kamyshnikova akamyshnikova at mirantis.com
Fri Jan 22 08:43:03 UTC 2016


This is great that you look into this issue! I think that first solution
looks more solid, my concern here is how does this will affect the

On Thu, Jan 21, 2016 at 12:12 PM, Lubosz Kosnik <lubosz.kosnik at intel.com>

> He neutrinos,
> Currently I'm working on this bug [1]. Almost one year ago Yoni Shafrir
> prepared a patch to fix this issue but he got in review information that
> this solution must be changed because it's using only one script to check
> the GW availability and because of that it cannot be used in multi tenat
> environment.
> I tooked his code and was trying to upgrade that code to support multiple
> scripts but I was designed separate solution for that.
> I would like to know what do you think about this solution.
> 1. Add bash script generator to neutron/agent/linux/keepalived.py
> 2. There will be one script per one keepalived instance per node
> 3. There are two possible solutions for checking is everything is working
> OK. Script will verify:
>     a. That all interfaces are up - internal router interfaces in
> namespace, external interface taken from neutron configuration file and
> also br-tun/br-int interfaces.
>     b. That GW is pingable from router NS - there is only one problem what
> if GW is not configured in router already - plus we could ping other
> network node or other server which IP is specified in some configuration.
> That solution will also fix this issue [2].
> I would hear from you what do you think about that two possible solutions
> and what do you think about whole solution at all.
> Cheers,
> Lubosz (diltram) Kosnik
> [1] https://bugs.launchpad.net/neutron/+bug/1365461
> [2] https://bugs.launchpad.net/neutron/+bug/1375625
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Ann Kamyshnikova
Mirantis, Inc
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