Hello,
You can manually restart any service you like in devstack by following the 
below procedure:
1. In terminal type "screen -x stack" . Here stack is the screen name.you will 
be logged into the screens for all devstack services2. Browse to your selected 
service by pressing Ctrl+a and then n (Next screen). Ctrl+a and then p 
(Previous screen)3. When at the desired screen press Ctrl+c (This will stop the 
service)4. Press the UP key and press enter. 
The service will restart. 
For an automated restart you can copy the command (from 4th step) for 
restarting service and make a script that can re-start all such services. 
Hope it helps

From: chen...@intel.com
To: openstack@lists.openstack.org
Date: Wed, 11 Jun 2014 02:51:15 +0000
Subject: [Openstack] [devstack]How to restart all services without unstack ?









Hi list,
 
I just installed a devstack environment.
 
I didn’t find a good way to restart all services, so I use
1.      
./unstack.sh
2.      
./rejoin-stack.sh
 
Then I noticed that after 
./unstack.sh, br-int and br-ex had been removed (but not br-tun), but 
./rejoin-stack.sh would not add them back automate. So I reported a bug:
https://bugs.launchpad.net/devstack/+bug/1327042
 
But the bug has been marked as invalid due to:
“./unstack.sh destroys deployment, it is not intended to be used for services 
restart”
 
So, here is my question:
how can I restart all services without unstack ??
 
Thanks.
-chen




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