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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Sorry this reply won’t be of any help to your problem, but I am too curious to understand how it can be even slower if monting using Gluster client which I
would expect always be quicker than NFS or anything else.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">If you find the reason port it back to the list and share with us please. I think this directory index issues has been reported already for systems with many
files.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Fernando<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> gluster-users-bounces@gluster.org [mailto:gluster-users-bounces@gluster.org]
<b>On Behalf Of </b>olav johansen<br>
<b>Sent:</b> 07 June 2012 03:32<br>
<b>To:</b> gluster-users@gluster.org<br>
<b>Subject:</b> [Gluster-users] Performance optimization tips Gluster 3.3? (small files / directory listings)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Hi,<br>
<br>
I'm using Gluster 3.3.0-1.el6.x86_64, on two storage nodes, replicated mode (fs1, fs2)
<br>
Node specs: CentOS 6.2 Intel Quad Core 2.8Ghz, 4Gb ram, 3ware raid, 2x500GB sata 7200rpm (RAID1 for os), 6x1TB sata 7200rpm (RAID10 for /data), 1Gbit network<br>
<br>
I've it mounted data partition to web1 a Dual Quad 2.8Ghz, 8Gb ram, using glusterfs. (also tried NFS -> Gluster mount)<br>
<br>
We have 50Gb of files, ~800'000 files in 3 levels of directories (max 2000 directories in one folder)<br>
<br>
My main problem is speed of directory indexes "ls -alR" on the gluster mount takes 23 minutes every time.<br>
<br>
It don't seem like any directory listing information cache, with regular NFS (not gluster) between web1<->fs1, this takes 6m13s first time, and 5m13s there after.<br>
<br>
Gluster mount is 4+ times slower for directory indexing performance vs pure NFS to single server, is this as expected?
<br>
I understand there is a lot more calls involved checking both nodes but I'm just looking for a reality check regarding this.<br>
<br>
Any suggestions of how I can speed this up?<br>
<br>
Thanks,<br>
<br>
<o:p></o:p></p>
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