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<p class="MsoNormal">Hi all, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have posed a question a few weeks ago about debugging the nova-network issue, that I can not run the nova-network on the “controller” node (single flatdhcpmanger), I was able to run that properly on the compute nodes, however. During
the process of debugging, I understand the process of network much better, iptables, ebtable, dhcp, meta-data services all could cause problem.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I tracked it down in the /usr/lib/python2.6/site-packages/nova/network/l3.py<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">fixed_range = kwargs.get('fixed_range', False)<o:p></o:p></p>
<p class="MsoNormal"> networks = kwargs.get('networks', None)<o:p></o:p></p>
<p class="MsoNormal"> if not fixed_range and networks is not None:<o:p></o:p></p>
<p class="MsoNormal"> LOG.debug("I am here")<o:p></o:p></p>
<p class="MsoNormal"> for network in networks:<o:p></o:p></p>
<p class="MsoNormal"> LOG.debug("But not here")<o:p></o:p></p>
<p class="MsoNormal"> self.initialize_network(network['cidr'])<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Therefore, nova-network skipped bridge configuration and dnsmasq, thus it is quite useless even though the main nova-network is running! The “networks” must be different on the “controller node” and on “compute nodes”.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">How do I print the variables fixed_range and network using the openstack logging facilities? I would like to get to the bottom of this issue.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you very much for your help!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Zhi-Wei Lu<o:p></o:p></p>
<p class="MsoNormal">IET-CR-Network Operations Center<o:p></o:p></p>
<p class="MsoNormal">University of California, Davis<o:p></o:p></p>
<p class="MsoNormal">(530) 752-0155<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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