Open Stack

Hi Ryan,

>    - Create the service's users and add a password into the databse
>    - Sync the service with the database
>    - Start the service
If I am right, these are one time activity...during installation stage..
one does not need to create "service users" again and again during service
start.


>Or maybe the service runs a db_sync every time
is starts?
No, service start does not run db_sync.
I think only service status is updated in db during service start(i am not
talking specific to keystone...just general behavior).

What is requirement for db_sync each time service starts?

Best Regards,
Sheel Rana

On Fri, May 27, 2016 at 9:38 PM, Ryan Hallisey <rhallise at redhat.com> wrote:

> Hi all,
>
> When orchestrating an openstack service from nothing, there are a few
> steps that
> need to occur before you have a running service assuming the database
> already exists.
>
>     - Create the service's users and add a password into the databse
>     - Sync the service with the database
>     - Start the service
>
> I was wondering if for some services they could be aware of whether or not
> they need
> to sync with the database at startup.  Or maybe the service runs a db_sync
> every time
> is starts?  I figured I would start a thread about this because Keystone
> has some
> flexibility when running N+1 in a cluster of N. If Keystone could have that
> that ability maybe Keystone could db_sync each time it starts without
> harming the
> cluster?
>
> It may be wishful thinking, but I'm curious to hear more thought about the
> topic.
>
> Thanks,
> Ryan
>
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