<div dir="ltr">Hello,<div><br></div><div>thanks for this guidance, I wasn't aware of!</div><div><br></div><div>Any doc that describe all settings values ?</div><div>For example, I can't find documentation for cluster.lookup-optimize</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">2015-07-27 14:58 GMT+02:00 André Bauer <span dir="ltr"><<a href="mailto:abauer@magix.net" target="_blank">abauer@magix.net</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Some more infos:<br>
<a href="http://gluster.readthedocs.org/en/latest/Feature%20Planning/GlusterFS%203.7/Small%20File%20Performance/index.html?highlight=small%20file%20performance" rel="noreferrer" target="_blank">http://gluster.readthedocs.org/en/latest/Feature%20Planning/GlusterFS%203.7/Small%20File%20Performance/index.html?highlight=small%20file%20performance</a><br>
<span class=""><br>
Am 24.07.2015 um 20:15 schrieb Mathieu Chateau:<br>
> Hello,<br>
><br>
> gluster performance are not good with large number of small files.<br>
> Recent version do a better job with them, but not yet what I would enjoy.<br>
><br>
> As you are starting at gluster having an existing architecture, you<br>
> should first setup a lab to learn about it Else you will learn the hard way.<br>
> Don't play with turning off nodes, as you may create more issues than solve.<br>
><br>
> just my 2cents<br>
><br>
> Cordialement,<br>
> Mathieu CHATEAU<br>
> <a href="http://www.lotp.fr" rel="noreferrer" target="_blank">http://www.lotp.fr</a><br>
><br>
</span>> 2015-07-24 19:34 GMT+02:00 John Kennedy <<a href="mailto:skebi69@gmail.com">skebi69@gmail.com</a><br>
> <mailto:<a href="mailto:skebi69@gmail.com">skebi69@gmail.com</a>>>:<br>
<span class="">><br>
> I am new to Gluster and have not found anything useful from my<br>
> friend Google. I have not dealt with physical hardware in a few<br>
> years (my last few jobs have been VM's and AWS based)<br>
><br>
> I inherited a 4 node gluster configuration. There are 2 bricks, one<br>
> is 9TB the other 11TB.<br>
><br>
> The 11TB brick has a HUGE number of small files taking up only 1.3TB<br>
> of the brick. For some reason, even a simple ls command can take<br>
> hours to even start listing files. I removed a node by shutting down<br>
> gluster on that node. The change in performance is dramatic. If I<br>
> try and do ls on the 11TB brick on the downed node, I am still<br>
> getting the slow response. I have narrowed the issue down to this<br>
> one node as a result.<br>
><br>
> When I start gluster on the bad node, glusterfsd hits over 1000%CPU<br>
> use (The server has dual 8 core CPU's) and the load will jump to<br>
> 25-30 within 5 minutes. As such, I think this is a gluster issue and<br>
> not a hardware issue. I am trying to not reinstall gluster yet.<br>
><br>
> Is there something I am missing in my checks or will I need to<br>
> reinstall gluster on that node?<br>
><br>
> Thanks,<br>
> John<br>
><br>
> John Kennedy (_8(|)<br>
> Sometimes it happens, sometimes it doesn't - Pedro Catacora<br>
><br>
> Just because nobody disagrees with you doesn't mean you are correct.<br>
><br>
> Anatidaephobia is the fear that somehow, somewhere a duck is<br>
</span>> watching you - <a href="http://urbandictionary.com" rel="noreferrer" target="_blank">urbandictionary.com</a> <<a href="http://urbandictionary.com" rel="noreferrer" target="_blank">http://urbandictionary.com</a>><br>
<span class="">><br>
> The Dunning-Kruger effect occurs when incompetent people not only<br>
> fail to realize their incompetence, but consider themselves much<br>
> more competent than everyone else. Basically - they're too stupid to<br>
> know that they're stupid.<br>
><br>
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