[openstack-dev] [Heat] Live update of openstack

Sergey Kraynev skraynev at mirantis.com
Tue Aug 19 13:12:41 UTC 2014


Added tag Heat

Regards,
Sergey.


On 1 August 2014 09:52, Manickam, Kanagaraj <kanagaraj.manickam at hp.com>
wrote:

>  Hi,
>
>
>
> This mail is generic to all openstack service and explained the problem
> with respect to heat here.
>
>
>
> I have come across the situation where, updates are involved in the heat
> db model and corresponding code changes in the heat-engine component. Now
> assume that in a given deployment, there are two heat-engines and customer
> wants to update as follows:
>
> 1.       Run db sync and update the first heat-engine and restart the
> heat-engine
>
> 2.       Don’t touch the second heat-engine.
>
>
>
> In this scenario, first heat-engine will work properly as its updated with
> new db change done by the db sync. But second heat-engine is not updated
> and it will fail. To address this problem, would like to know if any other
> service came across the same scenario and a solution is already provided?
> Thanks.
>
>
>
> Regards
>
> Kanagaraj M
>
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>
>
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