<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Sep 10, 2014 at 6:00 AM, Ehsan Qarekhani <span dir="ltr"><<a href="mailto:qarekhani@gmail.com" target="_blank">qarekhani@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><div>Hi <br></div>I have some weird problem with nova-compute . <br></div>in one of my nodes nova compute refuse to create instance whit this error<br><span><span><br><br></span></span> <span>Traceback</span> (most recent call last):<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/compute/manager.<span>py</span>", line 1329, in _build_instance<br>      set_access_<span>ip</span>=set_access_<span>ip</span>)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/compute/manager.<span>py</span>", line 393, in decorated_function<br>     return function(self, context, *<span>args</span>, **<span>kwargs</span>)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/compute/manager.<span>py</span>", line 1741, in _spawn<br>     LOG.exception(_('Instance failed to spawn'), instance=instance)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/<span>openstack</span>/common/<span>excutils</span>.<span>py</span>", line 68, in __exit__<br>     six.<span>reraise</span>(self.type_, self.value, self.<span>tb</span>)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/compute/manager.<span>py</span>", line 1738, in _spawn<br>     block_device_info)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/<span>virt</span>/<span>libvirt</span>/driver.<span>py</span>", line 2287, in spawn<br>     block_device_info)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/<span>virt</span>/<span>libvirt</span>/driver.<span>py</span>", line 3709, in _create_domain_and_network<br>     network_info)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/<span>virt</span>/<span>libvirt</span>/firewall.<span>py</span>", line 285, in setup_basic_filtering<br>     self.<span>nwfilter</span>.setup_basic_filtering(instance, network_info)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/<span>virt</span>/<span>libvirt</span>/firewall.<span>py</span>", line 113, in setup_basic_filtering<br>     self._ensure_static_filters()<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/<span>virt</span>/<span>libvirt</span>/firewall.<span>py</span>", line 213, in _ensure_static_filters<br>     self._define_filter(self.nova_no_<span>nd</span>_reflection_filter)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/nova/<span>virt</span>/<span>libvirt</span>/firewall.<span>py</span>", line 233, in _define_filter<br>     self._<span>conn</span>.<span>nwfilterDefineXML</span>(<span>xml</span>)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/<span>eventlet</span>/<span>tpool</span>.<span>py</span>", line 179, in <span>doit</span><br>     result = proxy_call(self._<span>autowrap</span>, f, *<span>args</span>, **<span>kwargs</span>)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/<span>eventlet</span>/<span>tpool</span>.<span>py</span>", line 139, in proxy_call<br>     <span>rv</span> = execute(f,*<span>args</span>,**<span>kwargs</span>)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/<span>eventlet</span>/<span>tpool</span>.<span>py</span>", line 77, in <span>tworker</span><br>     <span>rv</span> = <span>meth</span>(*<span>args</span>,**<span>kwargs</span>)<br>   File "/<span>usr</span>/lib/python2.7/dist-packages/<span>libvirt</span>.<span>py</span>", line 3836, in <span>nwfilterDefineXML</span><br>    if <span>ret</span> is None:raise <span>libvirtError</span>('virNWFilterDefineXML() failed', <span>conn</span>=self)<br> <span>libvirtError</span>: operation failed: filter 'nova-no-<span>nd</span>-reflection' already exists with <span>uuid</span> 89637f16-774a-4b8c-857b-08819c6fcf41<br></div></div></div></div></blockquote><div><br></div><div><br></div><div>I think this has to do with spoofing protection. From the code:<br>This filter protects false positives on IPv6 Duplicate Address<br>Detection(DAD).</div><div><br></div><div>Any chance you're reusing IP addresses?</div><div><br></div><div>Anne</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr"><div><div><div><br></div>P.S <br></div>i am using nova-network instead of neutron. <br><br></div>tanks in advance.<br><br><div><br><div><div><div><br></div></div></div></div></div>
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