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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hi Adhi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Very interesting. I suspect that self._get_vif_ref, below, is returning None. This appears to be when the VM does not exist on the
host - perhaps the VM was renamed, deleted, or it has been migrated to a different host and Nova’s records didn’t get updated?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I believe the issue is most likely occurring at
<a href="http://git.openstack.org/cgit/openstack/nova/tree/nova/virt/xenapi/vif.py?h=15.0.4#n246">
http://git.openstack.org/cgit/openstack/nova/tree/nova/virt/xenapi/vif.py?h=15.0.4#n246</a> where we attempt to detect the VM based on the instance’s name in Nova’s database.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Do you have VMs on this host? They don’t have to be running (for example if the host rebooted then the VMs may exist but in a shutdown
state)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Could you check that the VMs that are on the host still have the name associated with them according to Nova?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">For example:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">root@host~/openrc# openstack server show 3662f9b8-1303-496a-8c21-97bba312432c<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">| OS-EXT-SRV-ATTR:instance_name | instance-0000914e
|<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">| name | dsvm-devstack-citrix-mia-nodepool-683420
|<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">In this case, the server has the name dsvm-devstack-citrix-mia-nodepool-683420 but on the hypervisor the VM itself has the name instance-0000914e<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Bob<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Adhi Priharmanto [mailto:adhi.pri@gmail.com]
<br>
<b>Sent:</b> 18 May 2017 10:34<br>
<b>To:</b> openstack <openstack@lists.openstack.org><br>
<b>Subject:</b> [Openstack] [Ocata-Xenserver] Nova-compute wouldn't start<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hi all, <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">I have openstack RDO ocata using xenserver as Hypervisor, setup manually. It works fine about 2 weeks, today my nova-compute wouldn't start and when I check the nova-compute log :<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">2017-05-18 16:29:24.769 10764 INFO nova.service [-] Starting compute node (version 15.0.0-1.el7)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service [req-f29142ce-c68a-4d0a-b6ff-ba5b0a67ec6a - - - - -] Error starting thread.<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service Traceback (most recent call last):<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/oslo_service/service.py", line 722, in run_service<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service service.start()<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/nova/service.py", line 144, in start<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service self.manager.init_host()<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1152, in init_host<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service self._init_instance(context, instance)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 949, in _init_instance<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service self.driver.plug_vifs(instance, net_info)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/nova/virt/xenapi/driver.py", line 309, in plug_vifs<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service self._vmops.plug_vifs(instance, network_info)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/nova/virt/xenapi/vmops.py", line 1959, in plug_vifs<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service self.vif_driver.plug(instance, vif, device=device)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/nova/virt/xenapi/vif.py", line 250, in plug<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service vif_ref = self._get_vif_ref(vif, vm_ref)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/nova/virt/xenapi/vif.py", line 42, in _get_vif_ref<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service vif_refs = self._session.call_xenapi("VM.get_VIFs", vm_ref)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/os_xenapi/client/session.py", line 200, in call_xenapi<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service return session.xenapi_request(method, args)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/os_xenapi/client/XenAPI.py", line 130, in xenapi_request<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service result = _parse_result(getattr(self, methodname)(*full_params))<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib64/python2.7/xmlrpclib.py", line 1233, in __call__<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service return self.__send(self.__name, args)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib64/python2.7/xmlrpclib.py", line 1581, in __request<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service allow_none=self.__allow_none)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib64/python2.7/xmlrpclib.py", line 1086, in dumps<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service data = m.dumps(params)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib64/python2.7/xmlrpclib.py", line 633, in dumps<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service dump(v, write)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib64/python2.7/xmlrpclib.py", line 655, in __dump<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service f(self, value, write)<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service File "/usr/lib64/python2.7/xmlrpclib.py", line 659, in dump_nil<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service raise TypeError, "cannot marshal None unless allow_none is enabled"<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service TypeError: cannot marshal None unless allow_none is enabled<br>
2017-05-18 16:29:24.847 10764 ERROR oslo_service.service </span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Anyone can help me with this problem ?<br clear="all">
<o:p></o:p></p>
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-- <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif">Cheers,</span><o:p></o:p></p>
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<p class="MsoNormal" style="vertical-align:baseline"><b><span style="font-size:13.5pt;font-family:"Helvetica",sans-serif;color:#333333">Adhi Priharmanto<o:p></o:p></span></b></p>
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<p class="MsoNormal" style="vertical-align:baseline"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif;color:#2B82AD">about.me/a_dhi<o:p></o:p></span></p>
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