[ovirt-users] Missing dom_md/ids file

[Cameron Christensen]

I was able to recreate the dom_md/ids file using the provided
instructions. The data center and gluster storage are active. Thank
you.
Cameron
On Sat, 2016-02-20 at 00:24 +0200, Nir Soffer wrote:
> On Fri, Feb 19, 2016 at 11:54 PM, Cameron Christensen
> <cameron.christensen at uk2group.com> wrote:
> > I cannot put the gluster domain into maintenance. I'm believe this
> > is
> > because the data center has a status of Non responsive (because a
> > host
> > cannot connect to storage or start SPM). The only option available
> > on the
> > gluster storage is activate. I have put all the hosts into
> > maintenance. Is
> > this enough to continue with the initialize lockspace step?
> 
> Yes, if all hosts are in maintenance, no host will access the gluster
> storage domain, and you can repair is safely.
> 
> > 
> > On Fri, 2016-02-19 at 23:34 +0200, Nir Soffer wrote:
> > 
> > On Fri, Feb 19, 2016 at 10:58 PM, Cameron Christensen
> > <cameron.christensen at uk2group.com> wrote:
> > 
> > Hello,
> > 
> > I am using glusterfs storage and ran into a split-brain issue. One
> > of the
> > file affected by split-brain was dom_md/ids. In attempts to fix the
> > split-brain issue I deleted the dom_md/ids file. Is there a method
> > to
> > recreate or reconstruct this file?
> > 
> > 
> > You can do this:
> > 
> > 1. Put the gluster domain to maintenance (via engine)
> > 
> > No host should access it while you reconstruct the ids file
> > 
> > 2. Mount the gluster volume manually
> > 
> > mkdir repair
> > mount -t glusterfs <server>:/<path> repair/
> > 
> > 3. Create the file:
> > 
> > touch repair/<sd_uuid>/dom_md/ids
> > 
> > 4. Initialize the lockspace
> > 
> > sanlock direct init -s <sd_uuid>:0:repair/<sd_uuid>/dom_md/ids:0
> > 
> > 5. Unmount the gluster volume
> > 
> > umount repair
> > 
> > 6. Activate the gluster domain (via engine)
> > 
> > The domain should become active after a while.
> > 
> > 
> > David: can you confirm this is the best way to reconstruct the ids
> > file?
> > 
> > Nir
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