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Hi Uwe,

What leads you to believe it’s defective? I think with the right output and config files we can figure out what’s missing. 

James

> On Jan 15, 2015, at 3:14 PM, Uwe Sauter <uwe.sauter.de at gmail.com> wrote:
> 
> Bump
> 
> Noone to comment on this approach? Am I missing something or is this the
> proper way to reset Neutron?
> 
> 
> Regards,
> 
>    Uwe
> 
> 
> -------- Weitergeleitete Nachricht --------
> Betreff: How to reset neutron (to clear leftovers from incorrect
> configuration)
> Datum: Tue, 13 Jan 2015 15:00:01 +0100
> Von: Uwe Sauter <uwe.sauter.de at gmail.com>
> Antwort an: uwe.sauter.de at gmail.com
> An: openstack at lists.openstack.org
> 
> Hi all,
> 
> I'd like to get your comments on how to correctly clean a defective
> neutron configuration so I can start over with a new config.
> 
> I'm currently running on CentOS 7 but try to keep it as generic as
> possible (but the distro affects the service and package names…)
> 
> 
> #### Compute hosts ####
> 1) stop service:
>   # systemctl stop neutron-openvswitch-agent.service
> 2) remove Openvswtch bridges:
>   # ovs-vsctl del-br br-tun
>   # ovs-vsctl del-br br-int
> 3) stop services:
>   # systemctl stop openvswitch.service
>   # systemctl stop openvswitch-nonetwork.service
> 4) remove Openvswitch persistent configuration
>   # rm -rf /etc/openvswitch/* /etc/openvswitch/.*
> 5) remove Openvswitch Kernel module
>   # rmmod openvswitch
> 6) optionally: reset configuration files:
>   # rm -rf /etc/neutron/*
>   # yum reinstall openstack-neutron openstack-neutron-ml2
> openstack-neutron-openvswitch (or whatever plugins were installed
> additionally)
> #################################
> 
> 
> #### Network host ####
> 1) stop services:
>   # systemctl stop neutron-l3-agent.service
>   # systemctl stop neutron-dhcp-agent.service
>   # systemctl stop neutron-metadata-agent.service
>   # systemctl stop neutron-openvswitch-agent.service
>   # systemctl stop neutron-ovs-cleanup.service
>   # systemctl stop neutron-openvswitch-agent.service
> 2) remove Openvswtch bridges:
>   # ovs-vsctl del-br br-tun
>   # ovs-vsctl del-br br-int
>   # ovs-vsctl del-br br-ex
> 3) stop services:
>   # systemctl stop openvswitch.service
>   # systemctl stop openvswitch-nonetwork.service
> 4) remove Openvswitch persistent configuration
>   # rm -rf /etc/openvswitch/* /etc/openvswitch/.*
> 5) remove Openvswitch Kernel module
>   # rmmod openvswitch
> 6) optionally: reset configuration files:
>   # rm -rf /etc/neutron/*
>   # yum reinstall openstack-neutron openstack-neutron-ml2
> openstack-neutron-openvswitch (or whatever plugins were installed
> additionally)
> #################################
> 
> 
> #### Neutron controller host ####
> 1) stop service:
>   # systemctl stop neutron-server.service
> 2) clear neutron database (on database host):
>   # mysql -u <DBADMIN> -p
>   mysql> drop database neutron;
>   mysql> create database neutron;
> 3) optionally: reset configuration files:
>   # rm -rf /etc/neutron/*
>   # yum reinstall openstack-neutron openstack-neutron-ml2 (or whatever
> plugins were installed additionally)
> #################################
> 
> 
> When come to that point, one can begin configuring Neutron again from a
> clean point. Don't forget to:
> 
> 1) create a symlink on each host
>   /etc/neutron/plugin.ini -> /etc/neutron/plugins/ml2/ml2_conf.ini
> 2) sync the database on the controller host
> 3) configure Neutron
> 4) restart services on all hosts
> 
> 
> Do I forget any step? Is there an easier way to get back the vanilla state?
> 
> 
> Best regards,
> 
> 	Uwe
> 
> 
> 
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