Geo-Replication is a more intelligent way of doing Rsync. Although Geo-Rep uses Rsync to transfer file data, identifying candidates that need to be sync'd (by handing it over to Rsync) is based on a extended attribute.<br>
<br>Whenever an entity is the master gluster volume is changed (writes) the marker xlator (feature/marker) updates the xtime extended attribute for that particular file and propagates it up the directory hierarchy. This by looking at the top level directory (xtime-master > xtime-slave) gsyncd knows whether there some change in the tree. Gsyncd then recursively walks the tree (only entering sub-directories that satisfy xtime(M) > xtime(S)) to get a list of files that have xtime differences b/w master and slave.<br>
<br>Thanks,<br>-Venky<br><br><div class="gmail_quote">On Fri, Jun 1, 2012 at 11:33 AM, Christian Wittwer <span dir="ltr"><<a href="mailto:wittwerch@gmail.com" target="_blank">wittwerch@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Gandalf,<br>
Did you get any feedback on your mail? I'm currently looking at the<br>
geo-replication too and was wondering what the difference is.<br>
<br>
Cheers,<br>
Christian<br>
<br>
2012/4/27 Gandalf Corvotempesta <<a href="mailto:gandalf.corvotempesta@gmail.com">gandalf.corvotempesta@gmail.com</a>>:<br>
<div class="im">> Hi,<br>
> can someone tell me the differenct between geo-replication and plain rsync?<br>
> On which frequency files are replicated with geo-replication?<br>
><br>
</div>> _______________________________________________<br>
> Gluster-users mailing list<br>
> <a href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br>
> <a href="http://gluster.org/cgi-bin/mailman/listinfo/gluster-users" target="_blank">http://gluster.org/cgi-bin/mailman/listinfo/gluster-users</a><br>
><br>
_______________________________________________<br>
Gluster-users mailing list<br>
<a href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br>
<a href="http://gluster.org/cgi-bin/mailman/listinfo/gluster-users" target="_blank">http://gluster.org/cgi-bin/mailman/listinfo/gluster-users</a><br>
</blockquote></div><br><br clear="all"><br>-- <br>Astalavista Baby!!!<br>