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<DIV><FONT color=#000000 size=3 face="Times New Roman"><SPAN id=result_box
lang=en><SPAN class="hps alt-edited">Ignoring</SPAN> <SPAN class=hps>issues
of</SPAN> <SPAN class=hps>Ram</SPAN><SPAN>.</SPAN> <SPAN class=hps>I</SPAN>
<SPAN class=hps>have</SPAN> <SPAN class=hps>a</SPAN> <SPAN class=hps>number
of</SPAN> <SPAN class=hps>questions</SPAN> <SPAN class=hps>as</SPAN> <SPAN
class=hps>the following</SPAN> <SPAN class=hps>model:</SPAN></SPAN></FONT></DIV>
<DIV><FONT color=#000000 size=3 face="Times New Roman"><SPAN lang=en><SPAN
class=hps></SPAN></SPAN></FONT> </DIV>
<DIV><FONT color=#000000 size=3 face="Times New Roman">My node-1's
resource as the following:</FONT></DIV>
<UL>
<LI><FONT color=#000000 size=3 face="Times New Roman">CPU : 4 core</FONT></LI>
<LI><FONT color=#000000 size=3 face="Times New Roman">RAM: 4
GB.</FONT></LI></UL>
<P><FONT color=#000000 size=3 face="Times New Roman">Now , My
Node-1 is hosting 4 instances:</FONT></P>
<UL>
<LI>3 instance: (each VM: 1 core CPU, 2 GB ram,..). <BR>2
instance(i-00000001, i-00000002) is turn of and 1 instance(i-00000003) is
running.</LI>
<LI>1 instance : (1 core CPU, 1 GB ram). <BR>It is
running.(i-00000004)</LI></UL>
<P><FONT color=#000000 size=3 face="Times New Roman">I request new ínstance by
the euca-run-instance command. My new instance ( i-00000005) is located on the
node 1. This is the problem for the nova-scheduler.</FONT></P>
<P><FONT color=#000000 size=3 face="Times New Roman">What is happen ? If I
reboot 2 instances : i-00000001,i-00000002.</FONT></P>
<P>How do we manage this problem in Openstack ? </P>
<P><FONT color=#000000 size=3 face="Times New Roman">I think that: My 2
instances (i-00000001 , i-00000002) should be migrated to the rest available
resources as node-2 and node-3.</FONT></P>
<P><FONT color=#000000 size=3 face="Times New Roman">If not, it's actually very
difficult to manage and reboot the instances which are turned off.
And their resources-allocated will be reused for the new instances.</P>
<DIV></FONT><FONT color=#993300 size=3 face="Times New Roman">----- <I><B>Thông
điệp gốc :</B></I> -----</FONT><FONT color=#000000 size=3
face="Times New Roman">
<DIV style="BACKGROUND: #f0b070"><B>Gửi từ : </B><A
href="mailto:vishvananda@gmail.com">Vishvananda Ishaya</A> <FONT
color=#0000ff>[vishvananda@gmail.com]</FONT> </DIV>
<DIV><B>Gửi lúc : </B>12/04/2012 11:43 PM</DIV></FONT></DIV>
<DIV style="font-color: " black; background: #e4e4e4><B>Gửi tới :
</B><A
href="mailto:openstack@lists.launchpad.net;vishvananda@gmail.com">openstack@lists.launchpad.net;vishvananda@gmail.com</A></DIV>
<DIV><B>Chủ đề : </B>Re: [Openstack] The Scheduling feature when reboot the
instance</DIV></FONT>
<DIV> </DIV>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">
<META name=GENERATOR content="MSHTML 8.00.6001.18702">
<DIV bgcolor="#e7efff">
<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>The resource of node-1 max is fitfor 3 instances
(m1.small): i-00000001, i-00000002, i-00000003.
<LI>I turn off i-00000001.
<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>The resources: RAM , CPU,.. of node-2 and node-3 is available.
<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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