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<p style='font-size: 13px; font-family: "Lucida Grande",Helvetica,Verdana,Arial,sans-serif; margin: 0px 0px 9px 0px'>Dear Gluster Users group,<br><br>We are looking from feedbacks, advise and production experience running GlusterFS in cloud infrastructure environment.<br><br><b>-- Main aim ---</b><br><br>Using GlusterFS as a mechanism to ensure data application sourcecode replication in order to run a web based Python Framework (https://github.com/odoo/odoo)<br><br><b>See attached cloud infrastructure diagram for more details.</b><br><br>As a Cloud provider we are using Google Cloud Platform.<br><br>Servers Specs<br><br>GlusterFS nodes<br><br> 3 Nodes<br> each one with<br> 2 Vcore<br> 4 GB ram<br> 100 SSD external disk (Gluster bricks)<br><br><br>We were able to setup and start a GlusterFS volume:<br><br> Volume Name: XXXXXXXXXXX<br> Type: Replicate<br> Volume ID:XXXXXXXXXXXXXXXXXXXXX<br> Status: Started<br> Snapshot Count: 0<br> Number of Bricks: 1 x 3 = 3<br> Transport-type: tcp<br> Bricks:<br> Brick1: node01:/mnt/disks/brick01/XXXXXXXXXXX<br> Brick2: node02:/mnt/disks/brick02/XXXXXXXXXXX<br> Brick3: node03:/mnt/disks/brick03/XXXXXXXXXXX<br> Options Reconfigured:<br> transport.address-family: inet<br> nfs.disable: on<br> diagnostics.latency-measurement: on<br> diagnostics.count-fop-hits: on<br><br><br>Then install and mount the glusterFS client on one of the application server.<br> GlusterFS client/application server spec<br> 4 Vcore<br> 8 GB Ram<br><br> We mount the glusterFS volume with the standard glusterfs client.<br><br><b>--- Main Problem ---</b><br><br>Access to the web application from the browser is very slow and we think we are experience really poor performance in case glusterFS have to handle small file (session file, .py sourcecode file).<br><br>We have try to read and understand this http://blog.gluster.org/2016/10/gluster-tiering-and-small-file-performance<br><br>But even with the new settings below the application still very slow.<br><br> sudo gluster volume set gvol0 features.cache-invalidation on<br> sudo gluster volume set gvol0 features.cache-invalidation-timeout 600<br> sudo gluster volume set gvol0 performance.stat-prefetch on<br> sudo gluster volume set gvol0 performance.cache-samba-metadata on<br> sudo gluster volume set gvol0 performance.cache-invalidation on<br> sudo gluster volume set gvol0 performance.md-cache-timeout 600<br> sudo gluster volume set gvol0 network.inode-lru-limit 90000<br> sudo gluster volume set gvol0 cluster.lookup-optimize on<br><br><br>If that helps, <b>please find attach a txt file that collect the "profile" data after 2 hours of "data sharing".</b><br><br><b>--- Main questions --- </b><br><br>Are we facing a network speed performance?<br>Are we looking into the right direction (small file performance)?<br>Shall we look to implement NFS-Ganesha to gain more performance?<br>Any ideas on how we can tune and improved the situation?<br><br><br>If you need anything else in terms of logs or anything else, don't hesitate to contact us.<br><br><br>Thanks in advance to anyone willing to share their ideas/feedbacks.<br></p>
<div><font style="font-size: 12px;">Regards,</font></div><div><font style="font-size: 12px;">Marino</font><br><br style="color: rgb(0, 0, 0); font-family: arial; font-size: 13.3333px; background-color: rgb(255, 255, 255);"><font style="font-size: 12px;">Marino Buccolini</font><font style="font-size: 12px;"><br></font><font style="font-size: 12px;">IT Development Manager</font><br style="color: rgb(0, 0, 0); font-family: arial; font-size: 13.3333px; background-color: rgb(255, 255, 255);"><span style="color: rgb(0, 0, 0); font-family: arial; font-size: 13.3333px; background-color: rgb(255, 255, 255);"><br>e: <span class="Apple-tab-span" style="white-space:pre"></span> marino.buccolini@bizitas.com </span><br style="color: rgb(0, 0, 0); font-family: arial; font-size: 13.3333px; background-color: rgb(255, 255, 255);"><span style="color: rgb(0, 0, 0); font-family: arial; font-size: 13.3333px; background-color: rgb(255, 255, 255);">t: <span class="Apple-tab-span" style="white-space:pre"> </span>020 8253 4450 </span><br style="color: rgb(0, 0, 0); font-family: arial; font-size: 13.3333px; background-color: rgb(255, 255, 255);"><span style="color: rgb(0, 0, 0); font-family: arial; font-size: 13.3333px; background-color: rgb(255, 255, 255);">w: <span class="Apple-tab-span" style="white-space:pre"> </span>https://bizitas.com</span><br style="color: rgb(0, 0, 0); font-family: arial; font-size: 13.3333px; background-color: rgb(255, 255, 255);"></div><div><font style="font-size: 12px;"><br></font><font style="font-size: 12px;">90-92 Southbridge Road</font><p><font style="font-size: 12px;">Croydon</font></p><p><font style="font-size: 12px;">CR0 1AF</font></p><p><font style="font-size: 12px;">United Kingdom</font><br></p><p><b id="docs-internal-guid-82588784-b894-b707-09df-b792986a9822"><br></b></p><p><b id="docs-internal-guid-82588784-b894-b707-09df-b792986a9822"><br></b></p><p><b id="docs-internal-guid-82588784-b894-b707-09df-b792986a9822">Bizitas Limited</b></p><p><b id="docs-internal-guid-82588784-b894-b707-09df-b792986a9822">Company Reg: </b><b>10145796</b><b style="font-family: arial; font-size: 13.3333px; font-style: initial; font-variant-ligatures: initial; font-variant-caps: initial;"> </b></p><p><img src="https://ci5.googleusercontent.com/proxy/50lesHK1XjI0fNo3gtc03ovTmqYOkhPfOrXu3UsTHRO16p29ckE9OgZTMeMccUWrQWWAwe7T0F3FB7rn1kC0W-Gz1tN1GVCTryLjTOLApSz964JG2CxfZK-DeG0Canp4AVEQYTYluCK1sETS6qJIrPj9jxyizlin5rwUA9ozMVGoxTukM5uZtheTHESHcYFkXCMWaF2YNURXi8U=s0-d-e1-ft#https://docs.google.com/uc?export=download&id=0B-FVJXQYZSciR2pmNWo0cGtHUUE&revid=0B-FVJXQYZSciNXRqMEJYRUN1QXJmUjlRMkhVUFRjZllHSzNzPQ"><br></p><p><span style="color: rgb(0, 0, 0); font-family: verdana; font-size: 11px; text-align: -webkit-auto; border-collapse: separate; border-spacing: 0px; background-color: rgb(255, 255, 255);"><span style="border-collapse:separate;text-align:-webkit-auto;border-spacing:0px"><span style="color:rgb(0,180,28)"><span style="border-collapse:separate;color:rgb(0,0,0);text-align:-webkit-auto;border-spacing:0px"><span style="border-collapse:separate;text-align:-webkit-auto;border-spacing:0px;font-size:12px"><b>Think about the environment.. 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