[Gluster-users] 3 node NFS-Ganesha Cluster

[Soumya Koduri]

On 11/30/2015 03:26 PM, Soumya Koduri wrote:
> Hi,
>> But are you telling me that in a 3-node cluster,
>> quorum is lost when one of the nodes ip is down?
>
> yes. Its the limitation with Pacemaker/Corosync. If the nodes
> participating in cluster cannot communicate with majority of them
> (quorum is lost), then the cluster is shut down.
>
>>
>> However i am setting up a additional node to test a 4-node setup, but
>> even then if i put down one node and nfs-grace_start
>> (/usr/lib/ocf/resource.d/heartbeat/ganesha_grace) did not run properly
>> on the other nodes, could it be that the whole cluster goes down as
>> quorum lost again?
>
> That's strange. We have tested quite a few times such configuration but
> haven't hit this issue. (CCin Saurabh who has been testing many such
> configurations).
forgot to CC in the earlier mail.

>
> Recently we have observed resource agents (nfs-grace_*) timing out
> sometimes esp when any node is taken down. But that shouldn't cause the
> entire cluster to shutdown.
> Could you check the logs (/var/log/messages, /var/log/pacemaker.log) for
> any error/warning reported when one node is taken down in case of 4-node
> setup.
>
> Thanks,
> Soumya
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://www.gluster.org/mailman/listinfo/gluster-users