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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Derek,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The symptoms you’ve described sound very much like a metadata service issue, whether the service is unavailable or not functioning properly. Sometimes this can be determined by looking at the VM console to
see if access to <a href="http://169.254.169.254">http://169.254.169.254</a> is repeatedly tried (and failing). If it’s intermittent, there may be a particular instance of the metadata service having issues. For VMs on provider networks (w/ OVS or LXB, specifically),
metadata access may provided via a static route that’s pushed by the DHCP server that answered the call. I recommend checking out the metadata agent and dhcp agent logs. If you’re using OVN, then it could still be a metadata issue but the solution could look
different. Can you describe your topology?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Hope that helps,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">James Denton<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Rackspace Private Cloud<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Derek O keeffe <derekokeeffe85@yahoo.ie><br>
<b>Date: </b>Thursday, August 18, 2022 at 3:41 AM<br>
<b>To: </b>Openstack-discuss <openstack-discuss@lists.openstack.org><br>
<b>Subject: </b>Weird behaviour on a provider net<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:12.0pt;background:#FFEB9C"><b><span style="color:#9C6500">CAUTION:</span></b><span style="color:black"> This message originated externally, please use caution when clicking on links or opening attachments!<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">Hi all,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">We have an Openstack Victoria cluster deployed and a provider network (IPv4) created that worked fine for months. Lately we've noticed that about 30-40% of the VM's that are spun up using this
network are inaccessible over ssh, Permission denied (publickey). Also, if you add a customisation script to create a password for the Ubuntu user that fails too. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">Initially we thought it was confined to one/two compute nodes but further testing this week shows that it can be any of the 6 compute nodes we have and always the original two that we identified
as being the problem. If we create the VM's from the cli and send them to specific hosts everything works fine including the original two hosts that had issues.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">We're finding it hard to nail down the cause of this because it's not consistent behaviour so any tips on where to investigate would be welcome, we have a second provider net (IPv4 & IPv6) that
works fine and have went through all the configs to see if there's any difference and all are identical over the hosts.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">Thanks in advance for any info.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">Regards,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue"">Derek<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue""><o:p> </o:p></span></p>
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