@Yujie - since it is the RYU code complaining you will need to work with them, that code is not in the neutron tree.
** Changed in: neutron Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1611237 Title: Restart neutron-openvswitch-agent get ERROR "Switch connection timeout" Status in neutron: Invalid Bug description: Environment: devstack master, ubuntu 14.04 After ./stack.sh finished, kill the neutron-openvswitch-agent process and then start it by /usr/bin/python /usr/local/bin/neutron- openvswitch-agent --config-file /etc/neutron/neutron.conf --config- file /etc/neutron/plugins/ml2/ml2_conf.ini The log shows : 2016-08-08 11:02:06.346 ERROR ryu.lib.hub [-] hub: uncaught exception: Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line 54, in _launch return func(*args, **kwargs) File "/usr/local/lib/python2.7/dist-packages/ryu/controller/controller.py", line 97, in __call__ self.ofp_ssl_listen_port) File "/usr/local/lib/python2.7/dist-packages/ryu/controller/controller.py", line 120, in server_loop datapath_connection_factory) File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line 117, in __init__ self.server = eventlet.listen(listen_info) File "/usr/local/lib/python2.7/dist-packages/eventlet/convenience.py", line 43, in listen sock.bind(addr) File "/usr/lib/python2.7/socket.py", line 224, in meth return getattr(self._sock,name)(*args) error: [Errno 98] Address already in use and ERROR neutron.plugins.ml2.drivers.openvswitch.agent.openflow.native.ofswitch [-] Switch connection timeout In kilo I could start ovs-agent in this way correctly, I do not know it is right to start ovs-agent in master. To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1611237/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp