[ClusterLabs] resource on remote node not failing over
andrew at beekhof.net
Sun Mar 29 20:25:06 EDT 2015
> On 16 Mar 2015, at 9:10 am, Simon Lawrence <simon.lawrence at navaho.co.uk> wrote:
> On Friday, March 13, 2015 11:21 PM GMT, David Vossel <dvossel at redhat.com> wrote:
>> ----- Original Message -----
>>> I have a two node cluster (Centos6.6/Pacemaker 1.1.12/Cman/Corosync 1.4.7)
>>> It is an asymmetric cluster (symmetric-cluster: false)
>>> There are two VM's (running Centos) in the cluster acting as remote
>>> nodes (lx16mx & lx17mx). These are on drbd backing storage.
>>> Other VM's (running other services) will be added in due course.
>>> Bind named service is installed/configured on both remote nodes, will
>>> start up on both nodes, and is being managed by an RA (ocf:heartbeat:named).
>>> I have location constraints to allow the resource to run on these nodes
>>> and I can move this resource between these nodes.
>>> However, if I disable the named service on the live node (by renaming
>>> the main config file and shutting down service), the resource does not
>>> failover to the other remote node.
>> Is pacemaker detecting this as a failure? I would expect pacemaker to
>> attempt to recover the dns server on the node it failed on first. If the
>> dns server can't be started on that node I'd expect it to fail over somewhere
> Pacemaker was definitely detecting it as a failure. Status of the resource was FAILED.
You'd need to send us the cibadmin -Q output when the cluster is in this state.
> I have since conducted exactly the same test on a pair of nodes running Centos 7 / Pacemaker 1.1.10 (VM's configured exactly as first setup) with same constraints, etc, and saw the behaviour I was expecting i.e. the resource failed over to the other remote node.
> stonith disabled in both cases.
> Users mailing list: Users at clusterlabs.org
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org
More information about the Users