On Wed, Sep 26, 2018 at 4:47 PM Simon Nussbaum <smirta(a)gmx.net> wrote:
Dear all
We are very happily running a hyperconverged gluster ovirt setup since
beginning of 2016. Because we couldn't afford 3 well-equipped servers,
we've set-up replica 3 with one arbiter gluster cluster. Back then the
gluster integration in oVirt wasn't where it is today. We did not add the
arbiter node to oVirt. Since then a lot changed and we suspect that from
time to time we run into problems because we haven't added the arbiter node
as a host to oVirt. We also think that we may profit from features and
higher visibility in oVirt when it is aware of all gluster nodes. Now, we
are thinking of adding the third, the arbiter host. Today we are using
oVirt 4.2.0.2 and GlusterFS 3.12 on CentOS 7.4. We see two ways to
accomplish this:
1) Add it as a new host
2) Import it as the discovered host in Compute >> Clusters >> OurCluster
The questions we have:
* First of all, is this a good idea anyway?
It helps that oVirt engine is aware of the hosts that it is managing. For
instance, to ensure that quorum is not lost when a host is fenced.
* Do we need to install vdsmd on the arbiter node?
Yes, vdsm (and vdsm-gluster) is needed on the node
* What is or is there difference between the two ways? Will it discover the
> gluster configuration or break it?
You can either add or import. Import helps when you have an entire cluster
to be added
> Before we break it we would love to hear what you guys think.
> Thanks a lot
> Simon
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