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<p class="MsoNormal">Hi<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:IS">I have installed and configured OpenStack(Juno) environment on Ubuntu(14.04).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:IS">We have currently 1 controller node, 3 network nodes and 4 compute nodes as well as 4 swift nodes.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:IS">I'm using OpenStack Networking (neutron). </span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I was thinking of doing a „live migration“ of several instances, if I need to do a OS upgrade on a compute node.<o:p></o:p></p>
<p class="MsoNormal">For the task of configuring „live magration“ I‘ve been reading this document:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:12.0pt;font-family:CartoGothicStd-Bold">OpenStack Cloud Administrator Guide<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:CartoGothicStd-Book">current (2015-05-21)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:CartoGothicStd-Book">Copyright © 2013-2015 OpenStack Foundation Some rights reserved.</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I can quickly see it‘s necessary to add this line to the nova.conf file ( on computer nodes):<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:Courier">live_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE,VIR_MIGRATE_PEER2PEER,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Courier">VIR_MIGRATE_LIVE, VIR_MIGRATE_TUNNELLED</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Also, it seems I need to configure a NFS mount og the dir<o:p></o:p></p>
<p class="MsoNormal">/var/lib/nova/instances<o:p></o:p></p>
<p class="MsoNormal">and thus configures file system access between all compute nodes.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>My question is:<o:p></o:p></b></p>
<p class="MsoNormal">Is this the only way to configure a Live migration of instances in Openstack ? i.e. configure a nfs mount of directories?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards<o:p></o:p></p>
<p class="MsoNormal">Yngvi<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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