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<div>Also,</div>
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<div>If the vm was booted with any special scheduler requests (affinity/anti-affinity rules) those rules are
<span style="font-weight: bold;">NOT</span> used when finding the new host to resize the vm on to. There is a ton of improvement to be had in the current resize/migrate code path. Basically, as it is right now a resize is a migration and it follows 99% of
the same code path.</div>
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<div>Kris Lindgren</div>
<div>Senior Linux Systems Engineer</div>
<div>GoDaddy, LLC.</div>
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<span style="font-weight:bold">From: </span>Juan José Pavlik Salles <<a href="mailto:jjpavlik@gmail.com">jjpavlik@gmail.com</a>><br>
<span style="font-weight:bold">Date: </span>Wednesday, November 26, 2014 at 10:36 AM<br>
<span style="font-weight:bold">To: </span>Mike Smith <<a href="mailto:mismith@overstock.com">mismith@overstock.com</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:openstack-operators@lists.openstack.org">openstack-operators@lists.openstack.org</a>" <<a href="mailto:openstack-operators@lists.openstack.org">openstack-operators@lists.openstack.org</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [Openstack-operators] Disabling VM Copy at Resizing<br>
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<div dir="ltr">My bad, you are right. The flag just allows the actual host to be included into the possible-hosts list.</div>
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<div class="gmail_quote">2014-11-26 14:34 GMT-03:00 Mike Smith <span dir="ltr"><<a href="mailto:mismith@overstock.com" target="_blank">mismith@overstock.com</a>></span>:<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">Note that “allow_resize_to_same_host” doesn’t force it to stay on the same host, it only allows it to happen. It’s still up to the scheduler as to where it goes. Because we use shared storage at Overstock, we had to work
around this by disabling all the hypervisors except the one it’s on before doing a resize.
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<div>We also would love to see a way to prevent copying the disk when the size doesn’t change. It’s annoying when you just want to make a CPU or RAM change and have to wait for the disk copy. The other downside of resizing is that it changes your nice, sparsely-provisioned
copy-on-write disk image into a full size image divorced from the qcow source disk.
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Mike Smith<br>
Principal Engineer, Website Systems<br>
<a href="http://Overstock.com" target="_blank">Overstock.com</a><br>
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<div>On Nov 26, 2014, at 10:21 AM, Juan José Pavlik Salles <<a href="mailto:jjpavlik@gmail.com" target="_blank">jjpavlik@gmail.com</a>> wrote:</div>
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<div dir="ltr">In Grizzly there's a flag "allow_resize_to_same_host=True" that at least shouldn't move the instance from one node to another, but it's not exactly what you want.
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<div class="gmail_quote">2014-11-26 12:30 GMT-03:00 Mathias Brito <span dir="ltr">
<<a href="mailto:mathiasbrito@gmail.com" target="_blank">mathiasbrito@gmail.com</a>></span>:<br>
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<div>Hello people,</div>
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Is there a away to avoid Openstack of making a copy of the VM when resizing it?<span><font color="#888888">
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<div>Mathias</div>
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<div dir="ltr">Pavlik Salles Juan José
<div>Blog - <a href="http://viviendolared.blogspot.com/" target="_blank">http://viviendolared.blogspot.com</a></div>
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<div dir="ltr">Pavlik Salles Juan José
<div>Blog - <a href="http://viviendolared.blogspot.com" target="_blank">http://viviendolared.blogspot.com</a></div>
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