[Gluster-users] Machine becomes its own peer

Joe Julian joe at julianfamily.org
Fri Feb 17 16:28:23 UTC 2017

Does your repaired server have the correct uuid  /var/lib/glusterd/glusterd.info?

On February 16, 2017 9:49:56 PM PST, Scott Hazelhurst <Scott.Hazelhurst at wits.ac.za> wrote:
>Dear all
>Last week I posted a query about a problem I had with a machine that
>had failed but the underlying hard disk with the gluster brick was
>good. I’ve made some progress in restoring. I now have the problem with
>my new restored machine where it becomes its own peer, which then
>breaks everything.
>1. Gluster daemons are off on all peers, content of
>/var/lib/glusterd/peers looks good.
>2. I start the gluster daemons on all peers. All looks good.
>3. For about 2 minutes, there’s no obvious problem — if I do a gluster
>peer status on any machine it looks good, if I do a gluster volume
>status A01 on any machine it looks good.
>4. Then at some point, the /var/lib/glusterd/peers file of the new,
>restored machine gets an entry for itself and things start breaking. A
>typical error message is the understandable 
>: Unable to get lock for uuid: 4fb930f7-554e-462a-9204-4592591feeb8,
>lock held by: 4fb930f7-554e-462a-9204-4592591feeb8 
>5. This is repeatable — if I stop daemons, remove the offending entry
>in /var/lib/glusterd/peer, and restart, the same behavior occurs — all
>good for a minute or two and then something magically puts something in
>In a previous step in restoring my machine, I had a different error of
>mismatching cksums and what I did then may be the cause of the problem.
>In searching the list archives I found someone with a similar cksum
>problem, and the proposed solution was to copy the
>/var/lib/glusterd/vols/ from another of the peers to the new machine.
>This may not be the issue but this is the only thing I think I did that
>was unconventional.
>I am running version 3.7.5-19 on Scientific Linux 6.8
>If anyone can suggest a way forward I would be grateful
>Many thanks
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