On Thu, Nov 21, 2013 at 12:34:33PM -0800, Gary Duan <gd...@varmour.com> wrote:
> Advanced service plugins don't have two-step transition today. IMO, If > vendor plugins/drivers don't maintain their own databases for these > services, it might not be urgent to add these steps in the plugin. I agree. OVS/linux bridge plugin (or mechanism driver) is in theory. Unfortunately most of controller based plugin isn't. They update neutron db and delegate the requests to the controller. This is common pattern. No polling or something. It is very fragile. For example restarting neutron-server during processing requests easily causes inconsistency between neutron db and controller side. Errors during delegation of requests tend to be ignored. Do we want to address it to some extent by framework (ie ML2 plugin)? or just leave it and declare that's the problem of plugin/mechanism driver? > How to > make sure database and back-end implementation in sync need more thought. > As configuring backend device can be an a-sync process, rollback database > tables can be cumbersome. -- Isaku Yamahata <isaku.yamah...@gmail.com> _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
