Hi Curtis, at this time I am using remote pacemaker only for controlli ng openstack services on compute nodes (neutron openvswitch-agent, nova-compute, ceilometer compute). I wrote my own ansible playbooks to install and configure all components. Second step could be expand it for vm high availability. I did not find any procedure for cleaning up compute node after rebooting and I googled a lot without luck. Regards Ignazio
Il 13/Mag/2017 00:32, "Curtis" <serverasc...@gmail.com> ha scritto: On Fri, May 12, 2017 at 8:51 AM, Ignazio Cassano <ignaziocass...@gmail.com> wrote: > Hello All, > I installed openstack newton p > with a pacemaker cluster made up of 3 controllers and 2 compute nodes. All > computer have centos 7.3. > Compute nodes are provided with remote pacemaker ocf resource. > If before shutting down a compute node I disable the compute node resource > in the cluster and enable it when the compute returns up, it work fine and > cluster shows it online. > If the compute node goes down before disabling the compute node resource in > the cluster, it remains offline also after it is powered up. > The only solution I found is removing the compute node resource in the > cluster and add it again with a different name (adding this new name in all > controllers /etc/hosts file). > With the above workaround it returns online for the cluster and all its > resources (openstack-nova-compute etc etc....) return to work fine. > Please, does anyone know a better solution ? What are you using pacemaker for on the compute nodes? I have not done that personally, but my impression is that sometimes people do that in order to have virtual machines restarted somewhere else should the compute node go down outside of a maintenance window (ie. "instance high availability"). Is that your use case? If so, I would imagine there is some kind of clean up procedure to put the compute node back into use when pacemaker thinks it has failed. Did you use some kind of openstack distribution or follow a particular installation document to enable this pacemaker setup? It sounds like everything is working as expected (if my guess is right) and you just need the right steps to bring the node back into the cluster. Thanks, Curtis. > Regards > Ignazio > > > _______________________________________________ > 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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