<div dir="ltr">Hello Geoffrey,<div><br></div><div>If gluster dev couldn't fix it, I would go the dumb way:</div><div><ol><li>Remove the 2 replicated brick</li><li>Reset these 2 bricks using new uuid/volumes (like if they were just installed)</li><li>rsync data directly from current nodes to this new 2 nodes cluster</li><li>reset the 2 remaining bricks</li><li>setup them to replicate the others one.</li></ol><div>If you are installing 3.7.2, all clients should be updated before</div></div><div><br></div><div>Using fuse (native gluster protocol/client), load is pushed on clients (they write to both replica). So they have to be tuned too.</div><div><br></div><div>just my 2cents on how I would try to resolve this issue</div><div><br></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature">Cordialement,<br>Mathieu CHATEAU<br><a href="http://www.lotp.fr" target="_blank">http://www.lotp.fr</a></div></div>
<br><div class="gmail_quote">2015-07-07 6:43 GMT+02:00 Geoffrey Letessier <span dir="ltr"><<a href="mailto:geoffrey.letessier@cnrs.fr" target="_blank">geoffrey.letessier@cnrs.fr</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear all,<br>
<br>
We are currently in a very critical situation because all our scientific production in our computing center is stopped since more than a week for maintenance (because of metadata "corruption"), I tried some scripts provided my GlusterFS support team with no effect and I can not continue in this way.<br>
<br>
So,I wonder if it exists a way to regenerate all bricks metadata (.glusterfs directories) after having remove ".glusterfs" directory on each brick (probably after having upgraded GlusterFS from v3.5.3 to v3.7.2)<br>
<br>
Your volume is distributed and replicated on 4 servers with 2 bricks each (i.e. distributed on 2 servers and replicated on the 2 others). My volume is not stripped<br>
<br>
In addition, because my the past I noticed a lot of performance issue, probably because some users play with a big files and some others with a lot (thousands, hundreds of thousands nay more) small files (hundreds of kB), could you advice me about how to best tune the volume with performance parameters?<br>
<br>
Thanks in advance,<br>
Geoffrey<br>
------------------------------------------------------<br>
Geoffrey Letessier<br>
Responsable informatique & ingénieur système<br>
UPR 9080 - CNRS - Laboratoire de Biochimie Théorique<br>
Institut de Biologie Physico-Chimique<br>
13, rue Pierre et Marie Curie - 75005 Paris<br>
Tel: 01 58 41 50 93 - eMail: <a href="mailto:geoffrey.letessier@ibpc.fr">geoffrey.letessier@ibpc.fr</a><br>
<br>
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</blockquote></div><br></div>