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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Cool. Thanks.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Carsten<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> rsmontero@gmail.com [mailto:rsmontero@gmail.com] <b>On Behalf Of </b>Ruben S. Montero<br><b>Sent:</b> Thursday, 17 March 2011 1:33<br><b>To:</b> Friedrich, Carsten (ICT Centre, Acton)<br><b>Cc:</b> users@lists.opennebula.org<br><b>Subject:</b> Re: [one-users] saveas not always working<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi, <o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Yes you are right, as part of the next release of OpenNebula, we are improving the image management system including some operations to save (snapshot) running VMs. With this new feature I think we cover both use-cases<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Cheers<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'>Ruben<o:p></o:p></p><div><p class=MsoNormal>On Wed, Mar 16, 2011 at 12:18 AM, <Carsten.Friedrich@csiro.au> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'>Hi Ruben,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'>Thanks for the clarification. I see where you are coming from and understand your reasoning. One issue with this approach is that it means that saveas will never work for some VMs. In particular it will only work for VMs that can receive ACPI events and are running an OS that is (correctly) configured to shut itself down on the relevant ACPI event. I think it would be good to have a mechanism which allows users to save VMs as images that does not require the active cooperation of the VM and its OS.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'>Carsten</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'>Also, as a minor side-note: OpenNebula is currently writing error messages to the log when doing cancel/delete on a VM after a saveas; which it probably shouldn’t.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:10.0pt'>From:</span></b><span lang=EN-US style='font-size:10.0pt'> <a href="mailto:rsmontero@gmail.com" target="_blank">rsmontero@gmail.com</a> [mailto:<a href="mailto:rsmontero@gmail.com" target="_blank">rsmontero@gmail.com</a>] <b>On Behalf Of </b>Ruben S. Montero<br><b>Sent:</b> Wednesday, 16 March 2011 3:25<br><b>To:</b> Friedrich, Carsten (ICT Centre, Acton)<br><b>Cc:</b> <a href="mailto:users@lists.opennebula.org" target="_blank">users@lists.opennebula.org</a><br><b>Subject:</b> Re: [one-users] saveas not always working</span><o:p></o:p></p></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hi Carsten,<o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>You are right, to save an image you have to shutdown the VM (i.e. shutdown + move the image back to the front-end). The image is "savedas" from there s if you cancel/delete a VM it is assumed that you do not want to keep the VM so it won't be saved. <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>The idea is to provide a fast image disposal mechanism for rapid VM provisioning. Basically VMs that do not need to preserve their state. <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>So basically, I think OpenNebula is behaving as expected....<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Cheers<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Ruben<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Tue, Mar 15, 2011 at 12:02 AM, <Carsten.Friedrich@csiro.au> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Sorry to bother everyone again. Currently I think this is a bug in OpenNebula; but before I file a bug report I want to make sure it’s not a local problem with my installation here or a fundamental misunderstanding on my side of what should happen. </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Thanks,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Carsten</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:10.0pt'>From:</span></b><span lang=EN-US style='font-size:10.0pt'> <a href="mailto:users-bounces@lists.opennebula.org" target="_blank">users-bounces@lists.opennebula.org</a> [mailto:<a href="mailto:users-bounces@lists.opennebula.org" target="_blank">users-bounces@lists.opennebula.org</a>] <b>On Behalf Of </b>Carsten.Friedrich@csiro.au<br><b>Sent:</b> Friday, 4 March 2011 15:22</span><o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br><b>To:</b> <a href="mailto:users@lists.opennebula.org" target="_blank">users@lists.opennebula.org</a><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>Subject:</b> [ExternalEmail] Re: [one-users] saveas not always working<o:p></o:p></p></div></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Some more insights after a bit more digging:</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>It seems to me that a successful save depends on the disk image(s) being moved from the .../var/XX/images directory to .../var/XX. This seems to happen during the shutdown epilog, but not during cancel or finalize.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Carsten</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:10.0pt'>From:</span></b><span lang=EN-US style='font-size:10.0pt'> <a href="mailto:users-bounces@lists.opennebula.org" target="_blank">users-bounces@lists.opennebula.org</a> [mailto:<a href="mailto:users-bounces@lists.opennebula.org" target="_blank">users-bounces@lists.opennebula.org</a>] <b>On Behalf Of </b>Carsten.Friedrich@csiro.au<br><b>Sent:</b> Friday, 4 March 2011 14:53<br><b>To:</b> <a href="mailto:users@lists.opennebula.org" target="_blank">users@lists.opennebula.org</a><br><b>Subject:</b> [ExternalEmail] [one-users] saveas not always working</span><o:p></o:p></p></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>I use OpenNebula 2.0.1 with KVM as hypervisor. I issue an saveas command and as far as I understand things the image should be saved when the vm reaches the state DONE. From a state ACTIVE – RUNNING there seem to be 3 actions to get to DONE: </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Shutdown: In this case the image gets saved and all is good.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Cancel, and finalize: In these cases the image hook is called, but it produces this error message:</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Fri Mar 4 14:36:19 2011 [HKM][D]: Message received: LOG - 85 Command execution fail: /srv/cloud/one/share/hooks/image.rb 85</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Fri Mar 4 14:36:19 2011 [HKM][D]: Message received: LOG - 85 STDERR follows.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Fri Mar 4 14:36:19 2011 [HKM][D]: Message received: LOG - 85 ExitCode: 255</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Fri Mar 4 14:36:19 2011 [HKM][D]: Message received: EXECUTE FAILURE 85 image</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>The image is not saved, but its state is nevertheless set to READY.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>I would like the image to successfully save in all 3 cases. Your help is much appreciated.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Thanks,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Carsten</span><o:p></o:p></p></div></div></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><br>_______________________________________________<br>Users mailing list<br><a href="mailto:Users@lists.opennebula.org" target="_blank">Users@lists.opennebula.org</a><br><a href="http://lists.opennebula.org/listinfo.cgi/users-opennebula.org" target="_blank">http://lists.opennebula.org/listinfo.cgi/users-opennebula.org</a><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br><br clear=all><br>-- <br>Dr. Ruben Santiago Montero<br>Associate Professor (Profesor Titular), Complutense University of Madrid<br><br>URL: <a href="http://dsa-research.org/doku.php?id=people:ruben" target="_blank">http://dsa-research.org/doku.php?id=people:ruben</a><br>Weblog: <a href="http://blog.dsa-research.org/?author=7" target="_blank">http://blog.dsa-research.org/?author=7</a><o:p></o:p></p></div></div></div></div></div></div></div><p class=MsoNormal><br><br clear=all><br>-- <br>Dr. Ruben Santiago Montero<br>Associate Professor (Profesor Titular), Complutense University of Madrid<br><br>URL: <a href="http://dsa-research.org/doku.php?id=people:ruben" target="_blank">http://dsa-research.org/doku.php?id=people:ruben</a><br>Weblog: <a href="http://blog.dsa-research.org/?author=7" target="_blank">http://blog.dsa-research.org/?author=7</a><o:p></o:p></p></div></div></body></html>