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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Ritesh,<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">Can I precisely know is this what you meant in the below email? Kill dnsmasq process and start it again. Then restart the nova-network.<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">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Krishnaprasad<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Ritesh Nanda [mailto:riteshnanda09@gmail.com]
<br>
<b>Sent:</b> Donnerstag, 6. März 2014 02:50<br>
<b>To:</b> Narayanan, Krishnaprasad<br>
<b>Subject:</b> Re: [Openstack] Unable to restore network connectivity after the controller and compute nodes were restarted<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">Hello Krishna,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Please check the dnsmasq process using ps aux | grep dnsmasq. If it is there you can still kill the process and restart the nova-network , i think dhcp will start giving lease.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards,<br>
Ritesh<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal">On Wed, Mar 5, 2014 at 7:30 PM, Narayanan, Krishnaprasad <<a href="mailto:narayana@uni-mainz.de" target="_blank">narayana@uni-mainz.de</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 lang="DE">Hallo all,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="DE"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">In our OpenStack ESSEX (<b>openstack-2012.1-dev</b>) setup, there are multiple compute nodes and the networking mode is based on VLAN manager. The controller and the compute nodes
were restarted and I could see that only few VMs have network connectivity and for the others the connections are lost.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">For example, I have posted the log of a VM below<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Courier New"">cloud-init start-local running: Wed, 05 Mar 2014 20:23:18 +0000. up 4.30 seconds</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Courier New"">no instance data found in start-local</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Courier New"">cloud-init-nonet waiting 120 seconds for a network device.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Courier New"">cloud-init-nonet gave up waiting for a network device.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="DE" style="font-size:10.0pt;font-family:"Courier New"">ci-info: lo : 1 127.0.0.1 255.0.0.0 .</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="DE" style="font-size:10.0pt;font-family:"Courier New"">ci-info: eth1 : 0 . . fa:16:3e:60:36:8d</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="DE" style="font-size:10.0pt;font-family:"Courier New"">ci-info: eth0 : 1 . .
</span><span style="font-size:10.0pt;font-family:"Courier New"">fa:16:3e:59:c7:35</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Courier New"">route_info failed</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Courier New""> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Courier New"">Waiting for network configuration...</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Courier New"">Waiting up to 60 more seconds for network configuration...</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Courier New"">Booting system without full network configuration...</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Courier New""> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Can I seek any help to resolve this problem?
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="DE">Best regards,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="DE">Krishnaprasad</span><o:p></o:p></p>
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<p style="margin:0cm;margin-bottom:.0001pt"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#000099"> With Regards
</span></b><span style="color:#000099"><o:p></o:p></span></p>
<p style="margin:0cm;margin-bottom:.0001pt"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#000099"> Ritesh Nanda</span></b><span style="color:#000099"><o:p></o:p></span></p>
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