Yep, also note that you have to wait 2x whatever the agent down time is set to before the rescheduling occurs.
On Aug 6, 2017 20:46, "Curtis" <serverasc...@gmail.com> wrote: > On Sun, Aug 6, 2017 at 8:38 PM, Kevin Benton <ke...@benton.pub> wrote: > > If you have 'allow_automatic_dhcp_failover' set to True then it will > > automatically remove networks from DHCP agents that are offline. > > > > However, this only applies to networks that are in the > admin_state_up=True > > condition. If you explicitly set them to admin_state_up=False then > automatic > > rescheduling won't occur. This was intentionally done so operators could > > avoid having networks rescheduled from DHCP agents they were performing > > short term maintenance on. > > > > So next time just start by shutting the agent down and ensuring that > > 'allow_automatic_dhcp_failover' is set to True in your server config > and it > > should work. > > Ok great, that makes sense to me. So if I had that > allow_automatic_dhcp_failover set, and I was doing maintenance, then I > could set admin_state_up to false. Or if I was migrating, leave it as > true. Seems like a good setup. > > Thanks, > Curtis. > > > > > On Sun, Aug 6, 2017 at 3:16 PM, Xav Paice <xavpa...@gmail.com> wrote: > >> > >> Yeah, it's an odd one for sure, in my experience at least they do need > to > >> be manually re-scheduled. > >> > >> On Sun, 6 Aug 2017 at 11:27 Curtis <serverasc...@gmail.com> wrote: > >>> > >>> I'm in the process of testing out moving around some neutron services. > >>> I'm starting with dhcp-agent. I've got neutron set to have 3 dhcp > >>> instances per network. > >>> > >>> I set the admin state of a single dhcp agent to down, then all the > >>> dhcp namespaces were automatically removed from the node running dhcp > >>> agent. Then I deleted the agent thinking the dhcp services would get > >>> rescheduled to another node, but they were not. So now I've just got > >>> two dhcp servers for most networks. > >>> > >>> Am I, as admin, expected to now do something like add all the networks > >>> with only 2 dhcp servers to a new dhcp-agent (using neutron > >>> dhcp-agent-network-add) or should neutron reschedule them > >>> automagically? > >>> > >>> I'm hoping I just missed a step here. :) > >>> > >>> Thanks, > >>> Curtis. > >>> > >>> _______________________________________________ > >>> OpenStack-operators mailing list > >>> OpenStack-operators@lists.openstack.org > >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/ > openstack-operators > >> > >> > >> _______________________________________________ > >> OpenStack-operators mailing list > >> OpenStack-operators@lists.openstack.org > >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > >> > > > > > > -- > Blog: serverascode.com >
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