[ClusterLabs] crm status shows CURRENT DC as None

[Ken Gaillot]

On Tue, 2022-06-14 at 11:10 +0530, Priyanka Balotra wrote:
> Hi Folks, 
> crm status shows CURRENT DC as None. Please check and let us know why
> the current DC is not pointing to any of the nodes.
>  
> CRM Status:
> Cluster Summary:
>   * Stack: corosync
>   * Current DC: NONE
>   * Last updated: Tue Jun  7 06:14:59 2022
>   * Last change:  Tue Jun  7 05:29:40 2022 by root via cibadmin on
> FILE-2
>   * 2 nodes configured
>   * 9 resource instances configured
> 
> How the current DC will be set to any node once we see as None?
> Is there any impact on cluster functionality?
> Thanks
> Priyanka
> 

It is fine for the DC to be NONE briefly, but if it lasts more than a
few seconds, something's wrong. The logs should have more details.

The cluster is unable to manage resources or fence nodes when there is
no DC. Effectively it's like putting the cluster in maintenance mode.
-- 
Ken Gaillot <kgaillot at redhat.com>