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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Yungho,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Please CC the list in future so others with the same question can see the answer either on the list or on the list archives.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Make sure you use XenServer 6.1 (with an Enterprise license) or 6.2 (with the free license) and you will have access to Storage Xen Motion; live migration without
needing shared storage.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">In OpenStack terms this is block migration and can be used by adding the “--block-migrate” option to the “nova live-migration” command line.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Bob<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> yungho [mailto:yungho5054@gmail.com]
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<b>Sent:</b> 10 June 2014 02:06<br>
<b>To:</b> Bob Ball<br>
<b>Subject:</b> Re: [Openstack-operators] OpenStack Havana+ XenServer6.2 Seek help<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN">Hi Bob,</span><o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN">Thank you for your help.</span><o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN">I have one on each XenServer virtual machine running a nova-compute, and connected to XenServer, if you do not use the Aggregate, XenServer does not add to the POOL, how to achieve live migration. Thanks.</span><o:p></o:p></p>
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<p class="MsoNormal">On Mon, Jun 9, 2014 at 4:35 PM, Bob Ball <<a href="mailto:bob.ball@citrix.com" target="_blank">bob.ball@citrix.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Yungho,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The use of aggregates with XenServer pools in this fashion is not very well tested – unless you absolutely
need shared storage (i.e. live storage migration is not sufficient) then we’d advise you don’t use aggregates with pools like this.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">This was a known regression at release time and it is fixed now.</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Bob</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> yungho
[mailto:<a href="mailto:yungho5054@gmail.com" target="_blank">yungho5054@gmail.com</a>]
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<b>Sent:</b> 09 June 2014 04:57<br>
<b>To:</b> <a href="mailto:openstack-operators@lists.openstack.org" target="_blank">
openstack-operators@lists.openstack.org</a><br>
<b>Subject:</b> [Openstack-operators] OpenStack Havana+ XenServer6.2 Seek help</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Nova-compute the first successful connection MASTER XENSERVER<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">I discover, that I can't set up nova-compute on "second host" in XenServer pool<br>
which is created by XenServer (without OpenStack aggregate), error is same. To<br>
master host nova-compute connects successfully. I tested this in two different<br>
XenServer 6.2 pools.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">Is there some solution how can start to work "second host's" nova-computes?</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN">The second nova-compute connected SLAVE XENSERVER following error LOG</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">Add Aggregate reference
<a href="https://wiki.openstack.org/wiki/XenServer/LiveMigration" target="_blank">
https://wiki.openstack.org/wiki/XenServer/LiveMigration</a></span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:56.664 2640 INFO nova.openstack.common.periodic_task [-] Skipping periodic task _periodic_update_dns
because its interval is negative</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:56.679 2640 DEBUG stevedore.extension [-] found extension EntryPoint.parse('file = nova.image.download.file')
_load_plugins /usr/lib/python2.7/dist-packages/stevedore/extension.py:84</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:56.713 2640 INFO nova.virt.driver [-] Loading compute driver 'xenapi.XenAPIDriver'</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 CRITICAL nova [-] 'XenAPISession' object has no attribute '_virtapi'</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova Traceback (most recent call last):</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova File "/usr/bin/nova-compute", line 10, in <module></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova sys.exit(main())</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/cmd/compute.py",
line 68, in main</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova db_allowed=False)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/service.py", line
257, in create</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova db_allowed=db_allowed)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/service.py", line
139, in __init__</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova self.manager = manager_class(host=self.host, *args, **kwargs)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py",
line 456, in __init__</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova self.driver = driver.load_compute_driver(self.virtapi, compute_driver)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/virt/driver.py",
line 1127, in load_compute_driver</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova virtapi)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/openstack/common/importutils.py",
line 52, in import_object_ns</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova return import_class(import_value)(*args, **kwargs)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/driver.py",
line 144, in __init__</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova self._session = XenAPISession(url, username, password, self.virtapi)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/driver.py",
line 675, in __init__</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova self.host_uuid = self._get_host_uuid()</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/driver.py",
line 725, in _get_host_uuid</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova aggr = self._virtapi.aggregate_get_by_host(</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova AttributeError: 'XenAPISession' object has no attribute '_virtapi'</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:"Arial","sans-serif";color:black">2014-06-09 01:57:57.302 2640 TRACE nova
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