<div dir="ltr"><div><div><div><div><div>It seems that when I upload a new image, or cloning that involves heavy disk activity (I/O) which causing the lag and lock-ups.<br></div>I googled and found out that Ubuntu default I/O scheduling is using CFQ. <br>
<br></div>May I know how OpenNebula admin manage the resources?<br></div>I mean do admin let the user create the image and uploads it using Sunstone?<br></div><div><br>If so, does other user encounter any lags if other user uploads a big image? <br>
</div><div><br></div>How is it actually, the real case scenario for cloud service provider to provide an efficient service?<br><br></div><div>I really appreciate for any suggestions<br></div><div><br></div>Thank you<br></div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Sep 5, 2013 at 4:34 PM, Mohammad Fazli Ahmat Jalaluddin <span dir="ltr"><<a href="mailto:fazli.jalaluddin@gmail.com" target="_blank">fazli.jalaluddin@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><div><div><div><div><div>Yes, I still experiencing the issue. <br></div>I really think that the problem is my network since I am using NFS for the data transfer.<br>
</div><br>If I deploy a Persistent image, the deployment time would be fast.<br>
</div><div>Most of my image is using persistent and it has no problem at all<br></div><div><br></div>If I deploy a non-persistant image, the deployment time would be slow.<br></div></div>This holds true as non-persistent image would be copy to hypervisor and this is my problem. <br>
</div>For a non-persistent image of 8Gb, it would take about 1/2 hour to deploy (from prolog to running)<br><div><div>While deploying, the sunstone server seems slow other people who want to login also takes much longer time<br>
</div></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Sep 2, 2013 at 9:46 PM, Daniel Molina <span dir="ltr"><<a href="mailto:dmolina@opennebula.org" target="_blank">dmolina@opennebula.org</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">Hi,<div class="gmail_extra"><br><br><div class="gmail_quote"><div>On 15 August 2013 06:25, Mohammad Fazli Ahmat Jalaluddin <span dir="ltr"><<a href="mailto:fazli.jalaluddin@gmail.com" target="_blank">fazli.jalaluddin@gmail.com</a>></span> wrote:<br>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Hi, <br><br><div>Sorry for late reply since it is holiday season in my country.<br>
<br></div></div><div>
I think the issue maybe due to NFS configuration (using NFSv3) and also some other minor things such as upgrading ruby version and so on.<br>
<br></div></div><div>I happened to see you post this suggested solutions while you were helping another user:<br><br><div>This error appears when the browser cannot contact the <span>sunstone</span>-server or the request takes more than expected and the timeout is reached. To improve the response time:</div>
<div> * [<span>sunstone</span>-oned] Is the connection between <span>sunstone</span>-server and oned fast?</div><div> * [<span>sunstone</span>] Check if the nokogiri gem is installed in the physical machine where <span>sunstone</span>-server is running, if it's not installed rexml will be used by default (a bit slower)</div>
<div> * [<span>sunstone</span>] Using ruby 1.9 instead of 1.8</div><div> * [<span>sunstone</span>] By default <span>sunstone</span>-server runs using the thin server, in a production environment it's recommended to use passenger + apache/nginx instead. [1] </div>
* [oned] Use mysql instead of sqlite as oned backend. [2] <br><br><br></div></div><div><div>Currently my deployment is installed with nokogiri gem, using mysql as backend, using ruby 1.8, and running on thin server.<br>
<br></div>
<div>I will try your suggested solution.<br><br></div><div>Also, how to know is the connection between sunstone-server and oned fast? Since in my deployment, both reside in the same server.<br></div></div></div></blockquote>
<div>
<br></div><div>If both services are in the same machine, it should be fast. Are you still experiencing this issue? </div><div><br></div><div>Cheers</div><div><div><div><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>Thank you.<br>
<br></div><div>Regards<br></div></div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Aug 5, 2013 at 2:36 PM, Daniel Molina <span dir="ltr"><<a href="mailto:dmolina@opennebula.org" target="_blank">dmolina@opennebula.org</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">Hi,<div class="gmail_extra"><br><br><div class="gmail_quote"><div>On 1 August 2013 02:11, Mohammad Fazli Ahmat Jalaluddin <span dir="ltr"><<a href="mailto:fazli.jalaluddin@gmail.com" target="_blank">fazli.jalaluddin@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Hi,<br><br>Thanks for the reply.<br><br>I have enough space on disk. <br>
It's just the server seems not responding when I upload any image files or deploy non-persistent image files.<br><br>When I was using 3.8.3, the error comes something like this: "error: execution expired"<br>
</blockquote><div><br></div></div><div>Are you still experiencing this issue? If so, could you please open a ticket in our dev page so we can take a look into it</div><div><br></div><div><a href="http://dev.opennebula.org/" target="_blank">http://dev.opennebula.org/</a><br>
</div><div><br></div><div>Cheers</div><div><div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<br>Thank you<br><br>Regards,<br>Fazli<div><div><br><br> <br><br><div class="gmail_quote">On Mon, Jul 29, 2013 at 5:46 PM, Daniel Molina <span dir="ltr"><<a href="mailto:dmolina@opennebula.org" target="_blank">dmolina@opennebula.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr">Hi,<div class="gmail_extra"><br><br><div class="gmail_quote">
<div><div>On 29 July 2013 08:17, Mohammad Fazli Ahmat Jalaluddin <span dir="ltr"><<a href="mailto:fazli.mmu@gmail.com" target="_blank">fazli.mmu@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Hello all,<br><br>I'm using OpenNebula 4.0.1, and I configured the filesystem using NFS.<br>
<br>After I try to upload a 500Gb image file, after some time, several error message comes out and after that, the browser logs out <br>
and when I'm want to login back, I got this error message<br><br>"No answer from server. Is it running?"<br><br>Is it natural?<br><br>The
problem is actually, when a user want to access their VM via sunstone,
they cannot access if other user try to upload a huge size of image.<br>
So, somehow it defeats the purpose of having Cloud.<br><br>Is there any method to overcome this problem?<br></blockquote><div><br></div></div></div><div>Do you have enough space in your disk? When uploading images through Sunstone temp files will be stored in /var/tmp and then moved to the given datastore. </div>
<div><br></div><div>You can change this directory in the sunstone-server.conf:</div><div><div># Directory to store temp files when uploading images</div><div>#</div><div>:tmpdir: /var/tmp</div></div><div><br></div><div>Hope this helps</div>
<div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div><br>Thank you very much for helping me.<br>
<br>
Regards,<br>Fazli
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Daniel Molina<br>Project Engineer<br>OpenNebula - The Open Source Solution for Data Center Virtualization<br><a href="http://www.OpenNebula.org" target="_blank">www.OpenNebula.org</a> | <a href="mailto:dmolina@opennebula.org" target="_blank">dmolina@opennebula.org</a> | @OpenNebula</div>
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<div>--</div>Daniel Molina<br>Project Engineer<br>OpenNebula - The Open Source Solution for Data Center Virtualization<br><a href="http://www.OpenNebula.org" target="_blank">www.OpenNebula.org</a> | <a href="mailto:dmolina@opennebula.org" target="_blank">dmolina@opennebula.org</a> | @OpenNebula</div>
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<div>--</div>Daniel Molina<br>Project Engineer<br>OpenNebula - The Open Source Solution for Data Center Virtualization<br><a href="http://www.OpenNebula.org" target="_blank">www.OpenNebula.org</a> | <a href="mailto:dmolina@opennebula.org" target="_blank">dmolina@opennebula.org</a> | @OpenNebula</div>
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