At eNovance, we have implemented this feature as a service:
https://github.com/enovance/neutron-l3-healthcheck

It checks L3 agents status and reschedule routers if an agent is down.
It's working for Grizzly and Havana (two different branches).


Regards,

Emilien Macchi
----------------------------------------------------
# OpenStack Engineer
// eNovance Inc.              http://enovance.com
// ? emil...@enovance.com     ? +33 (0)1 49 70 99 80
// 10 rue de la Victoire 75009 Paris

On 09/12/2013 09:45 AM, Yongsheng Gong wrote:
> To implement the 'evacuation' is also possible.
>
>
> On Thu, Sep 12, 2013 at 3:43 PM, Yongsheng Gong
> <gong...@unitedstack.com <mailto:gong...@unitedstack.com>> wrote:
>
>     set the agent's admin status to False will empty up the agent's
>     resources. but it will not move the owned resources. 
>
>
>     On Thu, Sep 12, 2013 at 3:36 PM, Endre Karlson
>     <endre.karl...@gmail.com <mailto:endre.karl...@gmail.com>> wrote:
>
>         Is it possible to get a "evacuation" command for a node
>         running agents ? Say moving all the agents owned resources
>         from network node a > b?
>
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>
>
>
>
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