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</o:shapelayout></xml><![endif]--></head><body lang=JA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>Hi Affan,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>Pacemaker works fine on either a canonical distribution or RDO.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>I use our tool [1] using Pacemaker on Ubuntu without any specific issue.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>[1] <a href="https://github.com/ntt-sic/masakari">https://github.com/ntt-sic/masakari</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>Kazu<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Affan Syed [mailto:affan.syed.usc@gmail.com] <br><b>Sent:</b> Tuesday, February 16, 2016 2:02 PM<br><b>To:</b> Matt Fischer <matt@mattfischer.com>; Toshikazu Ichikawa <ichikawa.toshikazu@lab.ntt.co.jp><br><b>Cc:</b> openstack-operators@lists.openstack.org<br><b>Subject:</b> Re: [Openstack-operators] [nova] VM HA support in trunk<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-US>Hi Kazu and Matt,<o:p></o:p></span></p><div><p class=MsoNormal><span lang=EN-US>Thanks for the pointers. I think the discussion around pacemaker and pacemaker remote seems most promising, esp with Russel's blog post I found after I emailed earlier [1].<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Not sure how tooling would be different, but pacemaker, given its use in the controller cluster anyways, seems a more logical choice. Any issues you people think with a canonical distribution instead of RDO?<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Affan<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>[1] <a href="http://blog.russellbryant.net/2015/03/10/the-different-facets-of-openstack-ha/">http://blog.russellbryant.net/2015/03/10/the-different-facets-of-openstack-ha/</a><o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p></div><div><div><div><p class=MsoNormal><span lang=EN-US>On Mon, 15 Feb 2016 at 20:59 Matt Fischer <<a href="mailto:matt@mattfischer.com" target="_blank">matt@mattfischer.com</a>> wrote:<o:p></o:p></span></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0mm 0mm 0mm 6.0pt;margin-left:4.8pt;margin-right:0mm'><div><div><p class=MsoNormal><span lang=EN-US>I believe that either have your customers design their apps to handle failures or have tools that are reactive to failures.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Unfortunately like many other private cloud operators we deal a lot with legacy applications that aren't scaled horizontally or fault tolerant and so we've built tooling to handle customer notifications (reactive). When we lose a compute host we generate a notice to customers and then work on evacuating their instances. For the evac portion nova host-evacuate or host-evacuate-live work fairly well, although we rarely get a functioning floating-IP after host-evacuate without other work.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US>Getting adoption of heat or other automation tooling to educate customers is a long process, especially when they're used to VMware where I think they get the VM HA stuff for "free".<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></div><div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div><div><div><p class=MsoNormal><span lang=EN-US>On Mon, Feb 15, 2016 at 8:25 AM, Toshikazu Ichikawa <<a href="mailto:ichikawa.toshikazu@lab.ntt.co.jp" target="_blank">ichikawa.toshikazu@lab.ntt.co.jp</a>> wrote:<o:p></o:p></span></p></div></div><div><div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0mm 0mm 0mm 6.0pt;margin-left:4.8pt;margin-right:0mm'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>Hi Affan,</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>I don’t think any components in Liberty provide HA VM support directly.</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>However, many works are published and open-sourced, here.</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'><a href="https://etherpad.openstack.org/p/automatic-evacuation" target="_blank">https://etherpad.openstack.org/p/automatic-evacuation</a></span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>You may find ideas and solutions.</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>And, the discussion on this topic is on-going at HA meeting.</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US><a href="https://wiki.openstack.org/wiki/Meetings/HATeamMeeting" target="_blank">https://wiki.openstack.org/wiki/Meetings/HATeamMeeting</a><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>thanks,</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'>Kazu</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D'> </span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Affan Syed [mailto:<a href="mailto:affan.syed.usc@gmail.com" target="_blank">affan.syed.usc@gmail.com</a>] <br><b>Sent:</b> Monday, February 15, 2016 12:51 PM<br><b>To:</b> <a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a><br><b>Subject:</b> [Openstack-operators] [nova] VM HA support in trunk</span><span lang=EN-US><o:p></o:p></span></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span lang=EN-US>reposting with the correct tag, hopefully. Would really appreciate some pointers. <o:p></o:p></span></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>---------- Forwarded message ---------<br>From: Affan Syed <<a href="mailto:affan.syed.usc@gmail.com" target="_blank">affan.syed.usc@gmail.com</a>><br>Date: Sat, 13 Feb 2016 at 15:13<br>Subject: [nova] VM HA support in trunk<br>To: <<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>><o:p></o:p></span></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span lang=EN-US> <o:p></o:p></span></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Hi all,<o:p></o:p></span></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>I have been trying to understand if we currently have some VM HA support as part of Liberty?<o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>To be precise, how are host being down due to power failure handled, specifically in terms of migrating the VMs but possibly even their networking configs (tunnels etc). <o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>The VM migration like XEN-HA or KVM cluster seem to require 1+1 HA, I have read a few places about celiometer+heat templates to launch VMs for an N+1 backup scenario, but these all seem like one-off setups. <o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>This issue seems to be very much important for legacy enterprises to move their "pets" --- not sure if we can simply wish away that mindset!<o:p></o:p></span></p></div></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Affan<o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p></div></div></div></div></div></div></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></blockquote></div></div><div><div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0mm 0mm 0mm 6.0pt;margin-left:4.8pt;margin-right:0mm'><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US>_______________________________________________<br>OpenStack-operators mailing list<br><a href="mailto:OpenStack-operators@lists.openstack.org" target="_blank">OpenStack-operators@lists.openstack.org</a><br><a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators</a><o:p></o:p></span></p></blockquote></div></div></blockquote></div></div></div></div></body></html>