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How to restart a specific openstack-service installed using devstack?
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DevStack is a series of extensible scripts used to quickly bring up a complete OpenStack environment based on the latest versions of everything from git master. It is used interactively as a development environment and as the basis for much of the OpenStack project's functional testing.
Navigate to the /opt/stack/devstack directory. Run ./unstack.sh to stop the openstack services gracefully.
Rejoin stack screen as
./rejoin-stack.sh
and move to the specified service page using ctrl+a+", then type the number of the screen you need to go.
Hit 9 and then ctrl+C. The service would be stopped now. Re-run the following devstack command to start the service: (e.g for nova-network) cd /opt/stack/nova && /usr/bin/nova-network --config /etc/nova/nova.conf || echo "n-net failed to start" | tee "/opt/stack/stack/n-net.failure"
Hit Ctrl+d to detach from the stack screen.
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