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Re: How to start/stop/restart services in devstack


Hi Yun,

That's was exactly what I was looking for and was missing in devstack.
Thanks for providing it!


On Thu, Jan 26, 2012 at 3:13 PM, Yun Mao <yunmao@xxxxxxxxx> wrote:
> if you need to restart your service frequently without destroying your
> existing data, you might want to take a look at the upstart patch for
> devstack.
> https://blueprints.launchpad.net/devstack/+spec/upstart
> Yun
> On Thu, Jan 26, 2012 at 2:30 PM, Joe Smithian <joe.smithian@xxxxxxxxx> wrote:
>> localadmin@k:~$ sudo screen -x
>> There is no screen to be attached.
>> localadmin@k:~$ killall screen
>> screen: no process found
>> Should I re-run stack.sh?
>> On Thu, Jan 26, 2012 at 2:24 PM, Dean Troyer <dtroyer@xxxxxxxxx> wrote:
>>> On Thu, Jan 26, 2012 at 1:02 PM, Joe Smithian <joe.smithian@xxxxxxxxx> wrote:
>>>> The devstack document doesn't explain how to start/stop services,
>>>> maybe it's obvious for the devstack developers but not for a new user
>>>> like me!  I can't use  commands like "restart nova-api" because they
>>>> are not installed.
>>> Devstack starts the OpenStack services running in the foreground in a
>>> screen session.  Type 'screen -x' to attach to the session, there will
>>> be a window for each service plus one shell window.  Stop the each
>>> service with a Ctrl-C.  Press up-arrow to see the command stack.sh
>>> used to start it and execute that to restart the service.
>>>> I installed OpenStack using devsatck stack.sh script
>>>> (http://devstack.org/) on Ubuntu 11.10. Installation was successful
>>>> and I was able to login to Dahsboard; but it doesn't work anymore, I
>>>> think after I changed the IP address of the machine and moved it to
>>>> another network.
>>>> Apache2 is running but the nova and keystone services are not running.
>>> If you had already stated an instance, Nova probably moved your IP
>>> from eth0 to br100.  You would need to manually update the br100
>>> configuration.  You might also need to update some other configuration
>>> bits (floating IPs, etc) if you changed networks and want to access
>>> the instances from off the host.
>>> Your best bet here may be to just bite the bullet and 'killall screen'
>>> re-run stack.sh.  Of course this will re-initialize all of the
>>> databases and kill running instances.
>>> dt
>>> --
>>> Dean Troyer
>>> dtroyer@xxxxxxxxx
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