[ClusterLabs] Maintenance mode status in CIB
lists at alteeve.ca
Tue Oct 13 04:48:04 EDT 2020
On 2020-10-13 4:32 a.m., Jehan-Guillaume de Rorthais wrote:
> On Mon, 12 Oct 2020 19:08:39 -0400
> Digimer <lists at alteeve.ca> wrote:
>> Hi all,
> Hi you,
>> I noticed that there appear to be a global "maintenance mode"
>> attribute under cluster_property_set. This seems to be independent of
>> node maintenance mode. It seemed to not change even when using
>> 'pcs node maintenance --all'
> You can set maintenance-mode using:
> pcs property set maintenance-mode=true
> You can read about "maintenance-mode" cluster attribute and "maintenance" node
> attribute in chapters:
> I would bet the difference is that "maintenance-mode" applies to all nodes in
> one single action. Using 'pcs node maintenance --all', each pcsd daemon apply
> the local node maintenance independently.
> With the later, I suppose you might have some lag between nodes to actually
> start the maintenance, depending on external factors. Moreover, you can
> start/exit the maintenance mode independently on each nodes.
Thanks for this.
A question remains; Is it possible that:
Could be set, and a given node could be:
<node id="1" uname="mk-a02n01">
<nvpair id="nodes-1-maintenance" name="maintenance" value="off"/>
That is to say; If the cluster is set to maintenance mode, does that
mean I should consider all nodes to also be in maintenance mode,
regardless of what their individual maintenance mode might be set to?
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