<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">No this does not exist. If you are going to overprovision ram, you should probably make sure that you have swap enabled on your host.<div><br></div><div>Vish</div><div><br></div><div><div><div>On Apr 12, 2012, at 4:10 AM, Văn Đình Phúc wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
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<div>Hi.</div>
<div>I'm using Openstack (2011.3
(2011.3-nova-milestone-tarball:tarmac-20110922115702-k9nkvxqzhj130av2) with 3
Compute nodes.</div>
<div>My scheduling option is default.</div>
<div>I have the problem as the following steps:</div>
<ul>
<li>Compute node 1 is installed the modules: nova-api, nova-compute
and nova-network.</li>
<li>The resource of node-1 max is fitfor 3 instances
(m1.small): i-00000001, i-00000002, i-00000003.</li>
<li>I turn off i-00000001.</li>
<li>and then I request new ínstance by the euca-run-instance command , My new
instance ( i-00000004) is located on the node 1. </li>
<li>The resources: RAM , CPU,.. of node-2 and node-3 is
available.</li>
<li>finally, I reboot the i-00000001.What is happen? the i-00000001 is
rebooted on the node-1 , and It's shutdown off after reboot.I checked the
libvirt's log :<br><br>"Failed to allocate 2147483648 B: Cannot allocate
memory<br>2012-04-12 16:11:50.530: shutting down"<br></li></ul><p>So , Do Openstack have the sheduling feature when rebooting the
instance ? </p><p>Example: As above , My instance (i-00000001) will
be migrated to node-2 or node-3 when the
resource of node-1 is not available.</p>
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