Open Stack

Just point you a blueprint [1] develop during the I release (but deferring
to Juno) to bring L3 HA.
It use VRRP mechanism with keepalived that you could reuse for LBaaS.
It also uses conntrackd to synchronize connections between routers (master
and slave). I don't know how to configure LB synchronization.

[1] https://blueprints.launchpad.net/neutron/+spec/l3-high-availability

Édouard.


On Tue, Apr 1, 2014 at 10:52 AM, Heiko Krämer <hkraemer at anynines.com> wrote:

>
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> Hi guys,
>
> i'm looking since days for a solution to solve the SPOF (single point of
> failure) of the lbaas. A easy solution with a config option is not
> available yet.
>
> The next option is to install/configure some not OpenStack related tools
> like pacemaker. I realise my L3-Agent faiover with an self writen RA for
> pacemaker to switch routers on broken l3 agent to the running on with
> the neutron API.
> The same can be workin with LbaaS but there's a problem again:
>
>  - No API function to switch a pool from agent A to agent b
>  - configurations of HAProxy replicate => this can be solvd with drbd or
> some shared network storage like NFS
>  - Devices are not the same => L3 switch router from agent A (broken) to
> agent B the devices names are not the same
>  -
>
> Is there any solution to solve this SPOF ? I mean a LB should not only
> scale/balancing your cluster/application the second task is the failover
> of broken members.
>
>
>
>
> Thx and cheers
> Heiko
>
> - --
> anynines.com
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