<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Mar 14, 2013 at 10:07 AM, Diego Parrilla Santamaría <span dir="ltr"><<a href="mailto:diego.parrilla.santamaria@gmail.com" target="_blank">diego.parrilla.santamaria@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 class="im">On Thu, Mar 14, 2013 at 3:10 PM, Joe Topjian <span dir="ltr"><<a href="mailto:joe.topjian@cybera.ca" target="_blank">joe.topjian@cybera.ca</a>></span> wrote:<br>
</div><div class="gmail_quote"><div class="im"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote"><div>On Thu, Mar 14, 2013 at 4:13 AM, Diego Parrilla Santamaría <span dir="ltr"><<a href="mailto:diego.parrilla.santamaria@gmail.com" target="_blank">diego.parrilla.santamaria@gmail.com</a>></span> wrote:<br>
</div><div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<div><br></div><div>we use Razique's script on shared storage frequently. We recommend to take a snapshot first, just in case.</div>
<div><br></div><div>A few comments about what I have read in this thread:</div>
<div>- The script works (for us) and does not break anything (we modified it to perform a delete instead of writing to a file) on a shared storage</div><div>- I was really scared when I read about the migration problems from Essex to Folsom and the new automatic clean up code. <span style="font-family:Verdana,Geneva,sans-serif;font-size:12px">remove_unused_base_images=false</span></div>
<div>- 650GB in _base directory in a shared storage is not so big... specially if your users are taking snapshots. </div><div>- If you are using Netapp, Nexenta or other filers, this is the right folder to enable deduplication. You will see massive savings.</div>
<div>- Snapshots can make your _base directory HUGE. We have sent a blueprint about snapshotting and quotas to discuss next summit. <a href="https://blueprints.launchpad.net/nova/+spec/snapshot-tenant-quotas" target="_blank">https://blueprints.launchpad.net/nova/+spec/snapshot-tenant-quotas</a></div>
</blockquote><div><br></div></div><div>+1 this. I have implemented this myself in Nova for now by utilizing Nova notifications and the existing quota & quota_usages table. It's very hackish and I'd definitely support an official solution.</div>
<div><div>
<div><br></div><div></div></div></div></div></div></div></blockquote><div><br></div></div><div>We have a chargeback component that counts the snapshots and charge back to the client, but Cloud Hosting solutions paying for reserved resources cannot take advantage of the pay per use component we have.</div>
<div><br></div><div>Are you going to the Portland Summit? We would like to discuss about this topic, at StackOps we can develop it with all your help and support of course.</div></div></blockquote><div><br></div><div style>
I will be at the Summit and would love to discuss this.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="gmail_quote"><div><div class="h5">
<div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div><div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>- With a rather paranoid customer, we use the use_cow_images to false. </div><div><br></div><div>There is a great article of <span style="color:rgb(34,34,34);font-family:Verdana,Arial,sans-serif;text-align:justify;white-space:nowrap">Pádraig Brady </span>about the different options: <a href="http://www.pixelbeat.org/docs/openstack_libvirt_images/" target="_blank">http://www.pixelbeat.org/docs/openstack_libvirt_images/</a></div>
<div><br></div><div>Enjoy!</div><div>Diego</div><div><br></div><div> <br clear="all"><div> -- <br><span style="border-collapse:separate;font-family:Times"><span style="border-collapse:collapse;font-family:arial,sans-serif"><div align="left" style="font-size:13px">
<div><font><span lang="ES" style="font-family:Arial">Diego Parrilla<br><a href="http://www.stackops.com/" title="file:///C:/Documents%20and%20Settings/carolina.capsir.per1/Application%20Data/Microsoft/Signatures/www.garrigues.com
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</b></a></font></div></div><div style="font-size:13px"><font color="#004438" face="Arial"><b><p><span style="border-collapse:separate;font-size:medium;font-family:Times"><span style="border-collapse:collapse;font-family:arial,sans-serif;font-size:13px"><span style="border-collapse:separate;font-family:Times;font-size:medium"><span style="border-collapse:collapse;font-family:arial,sans-serif;font-size:13px"><font color="#004438" face="Arial"><b><b><span lang="EN-GB" style="font-size:10pt"><img></span></b></b></font></span></span></span></span></p>
</b></font></div></span></span><div><br></div></div><div><div>
<br><br><div class="gmail_quote">On Thu, Mar 14, 2013 at 9:35 AM, Razique Mahroua <span dir="ltr"><<a href="mailto:razique.mahroua@gmail.com" target="_blank">razique.mahroua@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 style="word-wrap:break-word">Hi, <div>I wrote a script a couple of times ago</div><div><a href="https://github.com/Razique/BashStuff/blob/master/SYSTEMS/OpenStack/SCR_5008_V00_NUAC-OPENSTACK-Nova-compute-images-prunning.sh" target="_blank">https://github.com/Razique/BashStuff/blob/master/SYSTEMS/OpenStack/SCR_5008_V00_NUAC-OPENSTACK-Nova-compute-images-prunning.sh</a></div>
<div>It looks for images that have a backing file, for the backing files that are not used, you can remove it :) </div><div>the script doesn't remove anyhthing, it just indicates you what base files can safely be removed - given as well the very fact that the base files are not the ones that are used, you can maybe put the dir - in a shared directory, instances may spawn slower, but after that you shouldn't have any problem</div>
<div><br></div><div>regards,</div><div><br></div><div><br><div>
<span style="border-spacing:0px;text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:'Lucida Grande';word-spacing:0px"><span style="font-weight:normal;font-family:Helvetica"><b style="color:rgb(19,112,138)">Razique Mahroua</b></span><span style="font-weight:normal;font-family:Helvetica;color:rgb(19,112,138)"><b> - </b></span><span style="font-family:Helvetica"><span style="font-weight:normal;font-family:Helvetica"><b style="color:rgb(19,112,138)">Nuage & Co</b></span><span style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;border-spacing:0px;font-size:medium"><span style="border-spacing:0px;text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:Helvetica;word-spacing:0px"><span style="border-collapse:separate;font-variant:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;border-spacing:0px"><div style="font-style:normal;font-size:medium;font-family:Helvetica;font-weight:normal">
<font color="#13708a"><a href="mailto:razique.mahroua@gmail.com" target="_blank">razique.mahroua@gmail.com</a></font></div><div style="font-style:normal;font-size:medium;font-family:Helvetica"><font color="#13708a">Tel : <a href="tel:%2B33%209%2072%2037%2094%2015" value="+33972379415" target="_blank">+33 9 72 37 94 15</a></font></div>
</span></span></span></span></span><br style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:normal;text-transform:none;font-size:medium;white-space:normal;font-family:Arial;word-spacing:0px">
<span><img height="125" width="125" src="cid:0A2450C8-6A0D-42D0-8035-743CAD564432@fabrique.lan"></span>
</div>
<br><div><div>Le 13 mars 2013 à 23:29, Michael Still <<a href="mailto:mikal@stillhq.com" target="_blank">mikal@stillhq.com</a>> a écrit :</div><div><div><br><blockquote type="cite">On Wed, Mar 13, 2013 at 5:23 PM, Joe Topjian <<a href="mailto:joe.topjian@cybera.ca" target="_blank">joe.topjian@cybera.ca</a>> wrote:<br>
<blockquote type="cite">On Wed, Mar 13, 2013 at 5:12 PM, Michael Still <<a href="mailto:mikal@stillhq.com" target="_blank">mikal@stillhq.com</a>> wrote:<br><blockquote type="cite">On Wed, Mar 13, 2013 at 4:42 PM, Joe Topjian <<a href="mailto:joe.topjian@cybera.ca" target="_blank">joe.topjian@cybera.ca</a>><br>
wrote:<br><blockquote type="cite">It would, yes, but I think your caveat trumps that idea. Having x nodes<br>be<br>able to work with a shared _base directory is great for saving space and<br>centrally using images. As an example, one of my OpenStack's _base<br>
directory<br>is 650gb in size. It's currently shared via NFS. If it was not shared or<br>used a _base_$host scheme, that would be 650gb per compute node. 10<br>nodes<br>and you're already at 6.5TB.<br></blockquote>
<br>Is that _base directory so large because its never been cleaned up<br>though? What sort of maintenance are you performing on it?<br></blockquote><br>It's true that I haven't done any maintenance to _base. From my estimations,<br>
a cleanup wouldn't reclaim a substantial amount of space to warrant me doing<br>an actual cleanup (basically "benefits of disk space reclaimed" is not<br>greater than "risk of accidentally corrupting x users instances" yet).<br>
</blockquote><br>What release of openstack are you running? I think you might get<br>significant benefits from turning cleanup on, so long as you're using<br>grizzly [1]. I'd be very very interested in the results of a lab test.<br>
<br>Michael<br><br>1: yes I know its not released yet, but if you found a bug now we<br>could fix it before it hurts everyone else...<br><br>_______________________________________________<br>OpenStack-operators mailing list<br>
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</blockquote></div></div></div><br></div></div><br>_______________________________________________<br>
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<br></blockquote></div></div></div><br><br clear="all"><div><div><br></div>-- <br>Joe Topjian<div>Systems Administrator</div><div>Cybera Inc.</div><div><br></div><div><a href="http://www.cybera.ca" target="_blank">www.cybera.ca</a></div>
<div><br></div><div><font color="#666666"><span>Cybera</span><span> is a not-for-profit organization that works to spur and support innovation, for the economic benefit of Alberta, through the use of cyberinfrastructure.</span></font></div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br>Joe Topjian<div>Systems Administrator</div><div>Cybera Inc.</div><div><br></div><div><a href="http://www.cybera.ca" target="_blank">www.cybera.ca</a></div><div>
<br></div><div><font color="#666666"><span>Cybera</span><span> is a not-for-profit organization that works to spur and support innovation, for the economic benefit of Alberta, through the use of cyberinfrastructure.</span></font></div>
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