[Gluster-users] geo replication help

Niels de Vos ndevos at redhat.com
Fri Aug 15 10:25:04 UTC 2014

On Wed, Aug 13, 2014 at 04:17:11PM +0530, M S Vishwanath Bhat wrote:
> On 13/08/14 02:27, David F. Robinson wrote:
> >I was hoping someone could help me debug my geo-replication under
> >gluster 3.5.2.
> >I am trying to use geo-replication to create a lagged backup of my
> >data. What I wanted to do was to turn off the geo-replication
> >(gluster volume geo-replication homegfs
> >gfsib01bkp.corvidtec.com::homegfs_bkp stop) during the day, and
> >then turn it back on at midnight to allow the remote system to
> >sync.
> >If I stop the geo-replication, delete a file, and then restart the
> >geo-replication, the deletion never shows up on the slave system.
> >From the website below, I thought that it would pick up these
> >changes.  Any suggestions for how I can get the changes made while
> >the geo-replication is stopped to propagate after restart the
> >geo-replication?
> This is a known issue with glusterfs-3.5.2. The problem is xsync can
> not handle deletes and renames. So when you restart the geo-rep, the
> change detection mechanism falls back to xsync even though the
> Changelog was ON, the whole time. So deletes and renames won't be
> propagated to slave in 3.5.2
> The patch to fix this issue is already submitted and is present in
> glusterfs master branch. The fix should be available in
> glusterfs-3.6 soon.

Can you point me to the bug/patch, or clone the bug for 3.5 and provide 
a backport?


> Best Regards,
> Vishwanath
> >https://medium.com/@msvbhat/distributed-geo-replication-in-glusterfs-ec95f4393c50
> >
> >*/gluster volume geo-replication <master_volume>
> ><slave_volume>::<slave_volume> stop [force]/*
> >
> >Force option is to be used, when one of the node (or glusterd in
> >one of the node) is down. Once stopped, the session can be
> >restarted any time. Note that upon restarting of the session, the
> >change detection mechanism falls back to xsync mode. This happens
> >even though you have changelog generating journals, while the
> >geo-rep session is stopped.
> >
> >
> >
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> >Gluster-users at gluster.org
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