[Gluster-users] Rsync in place of heal after brick failure

[Aravinda]

On Mon, 2019-04-08 at 09:01 -0400, Tom Fite wrote:
> Thanks for the idea, Poornima. Testing shows that xfsdump and
> xfsrestore is much faster than rsync since it handles small files
> much better. I don't have extra space to store the dumps but I was
> able to figure out how to pipe the xfsdump and restore via ssh. For
> anyone else that's interested:
> 
> On source machine, run:
> 
> xfsdump -J - /dev/mapper/[vg]-[brick] | ssh root@[destination fqdn] 
> xfsrestore -J - [/path/to/brick]

Nice. Thanks for sharing

> 
> -Tom
> 
> On Mon, Apr 1, 2019 at 9:56 PM Poornima Gurusiddaiah <
> pgurusid at redhat.com> wrote:
> > You could also try xfsdump and xfsrestore if you brick filesystem
> > is xfs and the destination disk can be attached locally? This will
> > be much faster.
> > 
> > Regards,
> > Poornima
> > 
> > On Tue, Apr 2, 2019, 12:05 AM Tom Fite <tomfite at gmail.com> wrote:
> > > Hi all,
> > > 
> > > I have a very large (65 TB) brick in a replica 2 volume that
> > > needs to be re-copied from scratch. A heal will take a very long
> > > time with performance degradation on the volume so I investigated
> > > using rsync to do the brunt of the work.
> > > 
> > > The command:
> > > 
> > > rsync -av -H -X --numeric-ids --progress server1:/data/brick1/gv0
> > > /data/brick1/
> > > 
> > > Running with -H assures that the hard links in .glusterfs are
> > > preserved, and -X preserves all of gluster's extended attributes.
> > > 
> > > I've tested this on my test environment as follows:
> > > 
> > > 1. Stop glusterd and kill procs
> > > 2. Move brick volume to backup dir
> > > 3. Run rsync
> > > 4. Start glusterd
> > > 5. Observe gluster status
> > > 
> > > All appears to be working correctly. Gluster status reports all
> > > bricks online, all data is accessible in the volume, and I don't
> > > see any errors in the logs.
> > > 
> > > Anybody else have experience trying this?
> > > 
> > > Thanks
> > > -Tom
> > > _______________________________________________
> > > Gluster-users mailing list
> > > Gluster-users at gluster.org
> > > https://lists.gluster.org/mailman/listinfo/gluster-users
> 
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-- 
regards
Aravinda