Yes host3 is hosting the arbiter bricks. Does this make any differrence?

All host ares part of the same cluster in Ovirt. But only 3 of them are part a the gluster pool.

I understand that all hosts will be aprt of the same gluster cluster.

Now i do i fix this situation?. It seem that i cannot add the missings hosts in the gluster cluster. Not sure since when they are not part of the gluster cluster or if they where ever part of the gluster cluster ..probably a human error

Any suggestions?

Thanks

On Fri, Jul 20, 2018 at 1:29 AM, Sahina Bose <sabose@redhat.com> wrote:

On Thu, Jul 19, 2018 at 10:37 PM, carl langlois <crl.langlois@gmail.com> wrote:
Hi

Today i had plan to start upgrading my installation to the latest 4.2. As i was already on a 4.2.x version i have figured it will be easy .. well.guess what i have having trouble re-activating one of the freshly upgraded host. So here is the resume.

My setup have 3 hosts that are also part of a gluster pool. Those are the original host that was use to setup the HA engine with glusterfs. One of the 3 host is only used for arbiter and can also run the engine. But nothing else can run on it because it is a fairly small machine.

I have also 6 others hosts for running vms that are not part of the gluster pool.

So first thing i did to upgrade is set the global maintenance. Update the Engine/restart the engine and remove global maintenance.. that went without a glitch.

Next i choose the arbiter for the first machine to upgrade. Then set the machine to maintenance run the upgrade and reboot the host. That went also without a glicth.

Now here is the glitchy part. When i try to reactivate the host i got a strange error with a gluster peer command that failed on a host that is not in the gluster peer list.

Here is the two errors i had.

"Gluster command [gluster peer probe ovhost3] failed on server sfmo5002ov74."
"Add Host failed error: ovhost3 is either already part of another cluster of having volumes configured return code: 3"

One thing i do not understand is the sfmo5002ov74 is not part of the gluster pool. It does not provide any bricks to the system.

Is ovhost3 - the host hosting arbiter bricks?
What about sfmo5002ov74 - is this host part of the same cluster in oVirt as ovhost3.
In oVirt cluster, if you have turned on gluster service for the cluster, all hosts will be part of the same gluster cluster, whether they have bricks or not

Now i am not sure what to look for. I have stop the upgrade process until i figure out the issue.

Any hints would be appreciated.

Thanks
Carl

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