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hi Timofei<br>
<br>
I don't have any specific use case, this issue is found while I am
doing live migration testing, what I did is:<br>
<br>
1. create 2 compute node, <br>
2. create a nfs service on one of compute node, let's say node-2 and
expose /opt/stack/date/nova/instances <br>
3. mount node-2:/opt/stack/date/nova/instances to node-1 's /mnt<br>
4. specify /mnt as node-1's instance_dir so node-1 and node-2 have
shared instance_dir(with different path)<br>
5. live migration an instance and fail.<br>
<br>
<br>
Thanks<br>
Eli.<br>
<br>
<div class="moz-cite-prefix">On 2016年04月29日 19:52, Timofei Durakov
wrote:<br>
</div>
<blockquote
cite="mid:CAHsr+ixZk_jY3C-K9Fa+L8vbCxR_0iy0mtMF4H2kArxQQMRVYQ@mail.gmail.com"
type="cite">
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<div dir="ltr">Hi,
<div><br>
<div>From the first sight there are no restrictions for
instance_path option. Could you please provide some details
about the use case? </div>
</div>
<div>I wonder would this functionality be really useful for
cloud-operators, or we just should add description to instance
path option, forcing to use the same path on compute nodes?</div>
<div><br>
</div>
<div>Timofey</div>
<div><br>
</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Apr 29, 2016 at 4:47 AM, Eli
Qiao <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:liyong.qiao@intel.com" target="_blank">liyong.qiao@intel.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote">
<div> hi team,<br>
<br>
Is there any require that all compute node's instance_dir
should be same?<br>
<br>
I recently get an issue while doing live migration with
migrateToURI3 method of libvirt python interface, if<br>
source and dest host are configured with difference
instance_dir, migration will fail since migrateToURI3<br>
requires a new xml, but we don't modified the instance_dir
of dest xml.<br>
<br>
I reported a bug on [1]_ , would like to get confirmation
before spend effort working on it.<br>
<br>
[1] <a moz-do-not-send="true"
href="https://bugs.launchpad.net/nova/+bug/1576245"
target="_blank">https://bugs.launchpad.net/nova/+bug/1576245</a><br>
<br>
Thanks.<span class="HOEnZb"><br>
<pre cols="72">--
Best Regards, Eli Qiao (乔立勇)
Intel OTC China</pre>
</span></div>
<br>
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<pre class="moz-signature" cols="72">--
Best Regards, Eli Qiao (乔立勇)</pre>
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