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


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



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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