<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jun 16, 2017 at 9:11 AM, Andrew Dent <span dir="ltr"><<a href="mailto:adent@ctcroydon.com.au" target="_blank">adent@ctcroydon.com.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
<div><div>Hi</div><div><br></div><div>Well I've got myself into a fine mess. </div><div><br></div><div>host01 was setup with hosted-engine v4.1. <span style="font-size:12pt">This was successful. </span></div><div><span style="font-size:12pt">Imported 3 VMs from a v3.6 OVirt AIO instance. (This OVirt 3.6 is still running with more VMs on it)</span></div><div>Tried to add host02 to the new Ovirt 4.1 setup. This partially succeeded but I couldn't add any storage domains to it. Cannot remember why. </div><div>In Ovirt engine UI I removed host02. </div><div>I reinstalled host02 with Centos7, tried to add it and Ovirt UI told me it was already there (but it wasn't listed in the UI). </div><div>Renamed the reinstalled host02 to host03, changed the ipaddress, reconfig the DNS server and added host03 into the Ovirt Engine UI. </div><div>All good, and I was able to import more VMs to it. </div><div>I was also able to shutdown a VM on host01 assign it to host03 and start the VM. Cool, everything working. </div><div>The above was all last couple of weeks. </div><div><br></div><div>This week I performed some yum updates on the Engine VM. No reboot. </div><div>Today noticed that the Ovirt services in the Engine VM were in a endless restart loop. They would be up for a 5 minutes and then die. </div><div>Looking into /var/log/ovirt-engine/<wbr>engine.log and I could only see errors relating to host02. Ovirt was trying to find it and failing. Then falling over. </div><div>I ran "hosted-engine --clean-metadata" thinking it would cleanup and remove bad references to hosts, but now realise that was a really bad idea as it didn't do what I'd hoped. </div><div>At this point the sequence below worked, I could login to Ovirt UI but after 5 minutes the services would be off</div><div><div>
<span style="color:rgb(34,34,34);font-family:Verdana,Arial,Helvetica,sans-serif;font-variant-ligatures:normal;background-color:rgb(255,255,255)">service ovirt-engine restart</span></div></div><div><span style="color:rgb(34,34,34);font-family:Verdana,Arial,Helvetica,sans-serif;font-variant-ligatures:normal;background-color:rgb(255,255,255)"><div>
<span style="font-variant-ligatures:normal">service ovirt-websocket-proxy restart</span></div><div><span style="font-variant-ligatures:normal"><div>
<span style="font-variant-ligatures:normal">service httpd restart</span></div></span></div></span></div><div><br></div><div>I saw some reference to having to remove hosts from the database by hand in situations where under the hood of Ovirt a decommission host was still listed, but wasn't showing in the GUI. </div><div>So I removed reference to host02 (vds_id and host_id) in the following tables in this order. </div><div><span style="font-size:12pt">vds_dynamic</span></div><div><div id="m_-2002812221470261923x0ec1289986994fb5ac309827edd33abe">
<div><div><span style="font-size:12pt">vds_statistics</span></div><div><div id="m_-2002812221470261923x87d978c56880415e9594d7fe317f30f3">
<div><div><div id="m_-2002812221470261923x0ec1289986994fb5ac309827edd33abe"><div><div>vds_static</div><div></div></div></div></div></div></div></div><div></div></div></div></div><div>host_device</div><div><br></div><div>Now when I try to start ovirt-websocket it will not start</div><div>service ovirt-websocket start<br>Redirecting to /bin/systemctl start ovirt-websocket.service<br>Failed to start ovirt-websocket.service: Unit not found.</div><div><br></div><div>I'm now thinking that I need to do the following in the engine VM</div><div><div>
<pre class="m_-2002812221470261923highlight m_-2002812221470261923plaintext"><code># engine-cleanup
# yum remove ovirt-engine
# yum install ovirt-engine
# engine-setup </code></pre></div></div><div>But to run engine-cleanup I need to put the engine-vm into maintenance mode and because of the --clean-metadata that I ran earlier on host01 I cannot do that. </div><div><br></div><div>What is the best course of action from here?</div></div></blockquote><div><br></div><div>To be honest, with all the steps taken above, I'd install everything (including OS) from scratch...</div><div>There's a bit too much mess to try to clean up properly here.</div><div>Y.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><br></div><div id="m_-2002812221470261923signature_old"><div id="m_-2002812221470261923xbaf36d997b7f497">
<div class="m_-2002812221470261923WordSection1">
<div id="m_-2002812221470261923xb71224f920234978acc74f4d23143069"><div class="m_-2002812221470261923WordSection1"><p class="MsoNormal"><font face="Tahoma"><span style="font-size:16px">Cheers</span></font></p><span class="HOEnZb"><font color="#888888"><p class="MsoNormal"><br></p><p class="MsoNormal"><font face="Tahoma"><span style="font-size:16px">Andrew</span></font></p></font></span></div></div></div></div></div>
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