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hi:<br>
<br>
If you want to use live migration, you need a shared storage, for
your environment, NFS make be the best choice, simple and enough,
keep the instances data stored in the space, that means, instance
data should have the same absolute path between the migration
machines, the start and destination machine must have nfs mounted.<br>
<br>
Second, you need some modifications to libvirt conf:<br>
<br>
<p> - vim /etc/libvirt/libvirtd.conf
</p>
<pre class="code">-- #listen_tls = 0
++ listen_tls = 0
-- #listen_tcp = 1
++ listen_tcp = 1
++ auth_tcp = "none"</pre>
<ul>
<li class="level1">
<div class="li"> vim /etc/init/libvirt-bin.conf</div>
</li>
</ul>
<pre class="code">-- env libvirtd_opts="-d"
++ env libvirtd_opts="-d -l"</pre>
<ul>
<li class="level1">
<div class="li"> vim /etc/default/libvirt-bin</div>
</li>
</ul>
<pre class="code">-- libvirtd_opts=" -d"
++ libvirtd_opts=" -d -l"</pre>
<br>
then you must restart libvirt, ensure: <br>
<pre class="code"># stop libvirt-bin && start libvirt-bin
# ps -ef | grep libvirt
root 1145 1 0 Nov27 ? 00:00:03 /usr/sbin/libvirtd -d -l
That's all for live migration, good luck.
By the way, if you have problems with live migration, you can try nova block migration, that doesn't need
NFS configuration. type "nova help live-migration" for details.
Thanks.
</pre>
<br>
<br>
<div class="moz-cite-prefix">On 12/17/2012 07:58 PM, Narayanan,
Krishnaprasad wrote:<br>
</div>
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">I
am using Ubuntu 12.04 Precise Pangolin with multi compute
node environment running on KVM / libvirt. The nova command
that I use is "nova live-migrate instanceID hostID" and via
API, I am passing the same information in the request body.<br>
<br>
I haven't modified any configuration in the libvirt. Can I
get to know the necessary configuration details in order to
solve the problem?</span><span style="color:#1F497D"><o:p></o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
Hanyu Xiao [<a class="moz-txt-link-freetext" href="mailto:hanyu.xiao@eayun.com">mailto:hanyu.xiao@eayun.com</a>]
<br>
<b>Sent:</b> Montag, 17. Dezember 2012 04:08<br>
<b>To:</b> Narayanan, Krishnaprasad<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:openstack@lists.launchpad.net">openstack@lists.launchpad.net</a><br>
<b>Subject:</b> Re: [Openstack] Live migration problem
in OpenStack ESSEX<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Can you show
the details of your OS, software environment and your commands
doing live migration?<br>
<br>
Live migration need some pre-configuration and some
modifications to libvirt/nfs configuration.<br>
<br>
Thanks.<o:p></o:p></p>
<div>
<p class="MsoNormal">On 12/16/2012 11:57 PM, Narayanan,
Krishnaprasad wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span lang="DE">Hallo all,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="DE"> </span><o:p></o:p></p>
<p class="MsoNormal">I am trying to perform live migration
from one compute node to another (using Nova APIs and
commands) and I am getting an error HTTP 400 and the log
file says “Remote error: FileNotFound File tmpSoFy35 could
not be found”. I am using OpenStack ESSEX. <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Could anybody suggest solutions to get
rid of this problem?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Krishnaprasad<o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><br>
<br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________<o:p></o:p></pre>
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</blockquote>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""><br>
<br>
<o:p></o:p></span></p>
<pre>-- <o:p></o:p></pre>
<pre>Hanyu Xiao<o:p></o:p></pre>
<pre>Eayun.com<o:p></o:p></pre>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Hanyu Xiao
Eayun.com</pre>
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