<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 22, 2016 at 10:09 AM, jayakrishnan mm <span dir="ltr"><<a href="mailto:jayakrishnan.mm@gmail.com" target="_blank">jayakrishnan.mm@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi,</div><div>Glusterfs Ver: 3.7.6</div><div><br></div><div>1) Currently I am using disperse volume and its performance is not satisfactory.</div><div> So I tried "sudo gluster v set ec-vol performance.client-io-threads on"</div><div>(as per <a href="https://bugzilla.redhat.com/show_bug.cgi?id=1349953" target="_blank">https://bugzilla.redhat.com/<wbr>show_bug.cgi?id=1349953</a>)</div><div><br></div><div>on the volume . But I am getting </div><div>Connection failed. Please check if gluster daemon is operational. error.</div></div></blockquote><div><br></div><div>Ideally, this indicates that CLI is not able to talk to GlusterD as it the latter could be down. Are you sure GlusterD was up by the time you executed this command? If yes, please attach the cmd_history and cli log.<br> <br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><br></div><div>volume info</div><div><br></div><div>Volume Name: ec-vol<br>Type: Disperse<br>Volume ID: 66d9f9e9-8bbd-46d8-b491-<wbr>5b3e48219ee1<br>Status: Started<br>Number of Bricks: 1 x (4 + 2) = 6<br>Transport-type: tcp<br>Bricks:<br>Brick1: jk:/home/jk/gluster/brick1<br>Brick2: jk:/home/jk/gluster/brick2<br>Brick3: jk:/home/jk/gluster/brick3<br>Brick4: jk:/home/jk/gluster/brick4<br>Brick5: jk:/home/jk/gluster/brick5<br>Brick6: jk:/home/jk/gluster/brick6<br>Options Reconfigured:<br>performance.readdir-ahead: on</div><div><br></div><div><br></div><div>Attached the log.</div><div><br></div><div>How to resolve this error ?</div><div><br></div><div>2) If I replace the Erasure code algorithm in the EC with a simpler one , will it give a better performance ? What is the real bottleneck ?</div><div><br></div><div><br></div><div>Best Regards</div><div>JK</div></div>
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