<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix"><tt>When you directly sync files using
rsync, rsync creates a file in slave if not exists. Due to this,
rsync creates a file in slave with different GFID than the one
available in master. This is a problem for geo-rep to continue
syncing to slave.</tt><tt><br>
</tt><tt><br>
</tt><tt>Before starting geo-replication as a prerequisite steps
you can do the following to fix the GFID changes,</tt><tt><br>
</tt><tt><br>
</tt><tt>Run this in a master node,</tt><tt><br>
</tt><tt>If you downloaded glusterfs source directory,</tt><tt><br>
</tt><tt><br>
</tt><tt> </tt><tt>cd $GLUSTER_SRC/extras/geo-rep</tt><tt><br>
</tt><tt><span class="author-g-1ye5yqhbr9ttow80"> sh
generate-gfid-file.sh</span></tt><tt><span
class="author-g-1ye5yqhbr9ttow80"> localhost:<MASTER VOL
NAME> $PWD/get-gfid.sh</span></tt><tt><span
class="author-g-1ye5yqhbr9ttow80">
/tmp/master-gfid-values.txt</span></tt><tt><br>
</tt><tt><br>
</tt><tt>Copy the generated file to slave </tt><tt><br>
</tt><tt> scp </tt><tt><span class="author-g-1ye5yqhbr9ttow80">
/tmp/master-gfid-values.txt root@slavehost:/tmp/<br>
<br>
Run this script in slave,<br>
</span></tt><tt> cd $GLUSTER_SRC/extras/geo-rep</tt><tt><br>
</tt><tt><span class="author-g-1ye5yqhbr9ttow80"> sh
slave-upgrade.sh localhost:<SLAVE VOL NAME></span></tt><tt><span
class="author-g-1ye5yqhbr9ttow80"> /tmp/master-gfid-values.txt
$PWD/gsync-sync-gfid</span></tt><tt><br>
</tt><tt><br>
</tt><tt>Once all these steps complete, GFID in master volume </tt><tt>matches
with GFID in slave.</tt><tt><br>
</tt><tt><br>
</tt><tt>Now update the stime xattr in each brick root in master
volume. Enclosed a Python script to update stime of each brick
root to current time, run it in each master node for each brick.</tt><tt><br>
</tt><tt><br>
</tt><tt> sudo python set_stime.py <MASTER VOLUME ID>
<SLAVE VOLUME ID> <BRICK PATH></tt><tt><br>
</tt><tt><br>
</tt><tt>For example,</tt><tt><br>
</tt><tt><br>
</tt><tt> sudo python set_stime.py
f8c6276f-7ab5-4098-b41d-c82909940799
563681d7-a8fd-4cea-bf97-eca74203a0fe /exports/brick1</tt><tt><br>
</tt><tt><br>
</tt><tt>You can get master volume ID and slave volume ID using
gluster volume info command,</tt><tt><br>
</tt><tt><br>
</tt><tt> gluster volume info <MASTER VOL> | grep -i
"volume id"</tt><tt><br>
</tt><tt> gluster volume info <SLAVE VOL> | grep -i
"volume id"</tt><tt><br>
</tt><tt><br>
</tt><tt>Once this is done, create the geo-rep session using force
option,</tt><tt><br>
</tt><tt><br>
</tt><tt> gluster volume geo-replication <MASTERVOL>
<SLAVEHOST>::<SLAVEVOL></tt><tt> create push-pem
force</tt><tt><br>
</tt><tt><br>
</tt><tt>Start geo-replication,</tt><tt><br>
</tt><tt><br>
</tt><tt> gluster volume geo-replication <MASTERVOL>
<SLAVEHOST>::<SLAVEVOL> start force</tt><tt><br>
</tt><tt><br>
</tt><tt>Now onwards, geo-rep picks only new changes and syncs to
slave.</tt><tt><br>
</tt><tt><br>
</tt><tt>Let me know if you face any issues.</tt><tt><br>
</tt><tt><br>
</tt><tt>--</tt><tt><br>
</tt><tt>regards</tt><tt><br>
</tt><tt>Aravinda</tt><tt><br>
</tt><tt><a class="moz-txt-link-freetext" href="http://aravindavk.in">http://aravindavk.in</a></tt><tt><br>
</tt><br>
<br>
On 12/14/2014 12:32 AM, Nathan Aldridge wrote:<br>
</div>
<blockquote
cite="mid:9F48F272C892964DBBA84CB7C773B6AA11AB19FB@exbermd01.ds.mda.ca"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
<meta name="Generator" content="Microsoft Word 14 (filtered
medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-CA">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have a large volume that I want to
geo-replicate using Gluster (> 1Tb). I have the data
rsynced on both servers and up to date. Can I start a
geo-replication session without having to send the whole
contents over the wire to the slave, since it’s already there?
I’m running Gluster 3.6.1.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve read through all the various on-line
documents I can find but nothing pops out that describes this
scenario.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks in advance,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Nathan Aldridge<o:p></o:p></p>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Gluster-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a>
<a class="moz-txt-link-freetext" href="http://supercolony.gluster.org/mailman/listinfo/gluster-users">http://supercolony.gluster.org/mailman/listinfo/gluster-users</a></pre>
</blockquote>
<br>
</body>
</html>