Device "br-int" does not exist when we rejoin

[li,chen]

If we want to restart all services, we need to run command:
./unstack.sh

And, then run command:
./rejoin-stack.sh

When unstack, br-int would be deleted.
But, it will not be auto re-created when rejoin-stack.

This caused neutron-openvswitch-agent complains about :
......
......
2014-06-06 13:23:36.566 DEBUG neutron.plugins.openvswitch.agent.ovs_neutron_agent [-] ******************************************************************************** from (pid=20545) log_opt_values /usr/lib/python2.6/site-packages/oslo/config/cfg.py:1962
2014-06-06 13:23:36.566 DEBUG neutron.agent.linux.utils [-] Running command: ['ip', '-o', 'link', 'show', 'br-int'] from (pid=20545) create_process /opt/stack/neutron/neutron/agent/linux/utils.py:48
2014-06-06 13:23:36.570 DEBUG neutron.agent.linux.utils [-]
Command: ['ip', '-o', 'link', 'show', 'br-int']
Exit code: 255
Stdout: ''
Stderr: 'Device "br-int" does not exist.\n' from (pid=20545) execute /opt/stack/neutron/neutron/agent/linux/utils.py:74
2014-06-06 13:23:36.571 CRITICAL neutron [-]
Command: ['ip', '-o', 'link', 'show', 'br-int']
Exit code: 255
Stdout: ''
Stderr: 'Device "br-int" does not exist.\n'
2014-06-06 13:23:36.571 TRACE neutron Traceback (most recent call last):
2014-06-06 13:23:36.571 TRACE neutron File "/usr/bin/neutron-openvswitch-agent", line 10, in <module>
2014-06-06 13:23:36.571 TRACE neutron sys.exit(main())
2014-06-06 13:23:36.571 TRACE neutron File "/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 1485, in main
2014-06-06 13:23:36.571 TRACE neutron agent = OVSNeutronAgent(**agent_config)
2014-06-06 13:23:36.571 TRACE neutron File "/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 207, in __init__
2014-06-06 13:23:36.571 TRACE neutron self.setup_rpc()
2014-06-06 13:23:36.571 TRACE neutron File "/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 272, in setup_rpc
2014-06-06 13:23:36.571 TRACE neutron mac = self.int_br.get_local_port_mac()
2014-06-06 13:23:36.571 TRACE neutron File "/opt/stack/neutron/neutron/agent/linux/ovs_lib.py", line 440, in get_local_port_mac
2014-06-06 13:23:36.571 TRACE neutron address = ip_lib.IPDevice(self.br_name, self.root_helper).link.address
2014-06-06 13:23:36.571 TRACE neutron File "/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 258, in address
2014-06-06 13:23:36.571 TRACE neutron return self.attributes.get('link/ether')
2014-06-06 13:23:36.571 TRACE neutron File "/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 282, in attributes
2014-06-06 13:23:36.571 TRACE neutron return self._parse_line(self._run('show', self.name, options='o'))
2014-06-06 13:23:36.571 TRACE neutron File "/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 212, in _run
2014-06-06 13:23:36.571 TRACE neutron return self._parent._run(kwargs.get('options', []), self.COMMAND, args)
2014-06-06 13:23:36.571 TRACE neutron File "/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 58, in _run
2014-06-06 13:23:36.571 TRACE neutron return self._execute(options, command, args)
2014-06-06 13:23:36.571 TRACE neutron File "/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 81, in _execute
2014-06-06 13:23:36.571 TRACE neutron root_helper=root_helper)
2014-06-06 13:23:36.571 TRACE neutron File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 76, in execute
2014-06-06 13:23:36.571 TRACE neutron raise RuntimeError(m)
2014-06-06 13:23:36.571 TRACE neutron RuntimeError:
2014-06-06 13:23:36.571 TRACE neutron Command: ['ip', '-o', 'link', 'show', 'br-int']
2014-06-06 13:23:36.571 TRACE neutron Exit code: 255
2014-06-06 13:23:36.571 TRACE neutron Stdout: ''
2014-06-06 13:23:36.571 TRACE neutron Stderr: 'Device "br-int" does not exist.\n'
2014-06-06 13:23:36.571 TRACE neutron
[stack@devstack-compute neutron]$

[li,chen (chen-li)]

For addition, after unstack,
although br-int has been deleted, but br-tun is still exist.

[Eugene Nikanorov (enikanorov)]

I think the behavior is expected.
./unstack.sh destroys deployment, it is not intended to be used for services restart

[li,chen (chen-li)]

Then how to restart all services ??

Because directly run rejoin do not restart anything ???
And ./stack.sh will run too many things, isn't it ?