[Gluster-users] Read Only equivalent to cluster.server-quorum-ratio

Ravishankar N
2015-08-22T08:46:46Z

On 08/22/2015 02:30 AM, Pat Riehecky wrote:
> At home I've a very small gluster cluster (2 nodes) with a few
> volumes. Basically I've set up gluster volumes for
"irreplaceable"
> content that is replicated to a few systems - for example, photos. But
> one system is currently out due to a failed PSU.  I'd like to keep the
> volume accessible to the rest of my network, but as Read Only. The
> cluster.server-quorum-ratio looks to bring the volume off line if the
> quorum isn't met.  Since nearly all the access to these files is Read
> Only anyway I can just defer the writes, is there a tunable that will
> automatically put the volume into Read Only when the quorum isn't met
> and then bring it back to Read Write automatically when enough bricks
> check in?
>
> tldr;  cluster.server-quorum-ratio looks to bring volumes off line
> when the quorum isn't met, I'd rather go Read Only than off line.
>

cluster.client-quorum does what you describe, but only for replicate
subvolumes. I suppose manually enabling `features.read-only ` is
something you can use instead.

-Ravi
> Pat
>
>