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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;"><span style="font-family: Calibri, sans-serif; font-size: 14.6667px;">Anirudh,</span>
<div><font face="Calibri, sans-serif"><span style="font-size: 14.6667px;"><br>
</span></font></div>
<div><font face="Calibri, sans-serif"><span style="font-size: 14.6667px;">Each service has its own redundancy mode, that's why some services run Active/Active, some others run Active/Standby. It is not the matter if you can configure a service to be in a particular
redundancy mode, it is whether the service itself can run in such mode. </span></font></div>
<div><font face="Calibri, sans-serif"><span style="font-size: 14.6667px;">Neutron and other openstack services had been removed from bare metal. Such services are no long managed by service manager.</span></font></div>
<div><font face="Calibri, sans-serif"><span style="font-size: 14.6667px;"><br>
</span></font></div>
<div><font face="Calibri, sans-serif"><span style="font-size: 14.6667px;">Regards,</span></font></div>
<div><font face="Calibri, sans-serif"><span style="font-size: 14.6667px;"><br>
</span></font></div>
<div><font face="Calibri, sans-serif"><span style="font-size: 14.6667px;">Bin<br>
</span></font>
<div style="font-family: Times New Roman; color: #000000; font-size: 16px">
<hr tabindex="-1">
<div id="divRpF580441" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> Anirudh Gupta [Anirudh.Gupta@hsc.com]<br>
<b>Sent:</b> Tuesday, December 03, 2019 3:19 AM<br>
<b>To:</b> Lin, Shuicheng; starlingx-discuss@lists.starlingx.io<br>
<b>Subject:</b> Re: [Starlingx-discuss] StarlingX 2.0 Duplex Controller in Active/Active HA<br>
</font><br>
</div>
<div></div>
<div>
<div class="WordSection1">
<p class="MsoNormal">Hi Shuicheng</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">We specifically wanted to understand whether “Openstack Services” like Nova, Neutron etc are working in Active/Active or Active/StandBy.</p>
<p class="MsoNormal">In the “sm-dump”, there are “vim-services” mentioned, but there is no information about the state of individual “Neutron“ services and all other.</p>
<p class="MsoNormal"> </p>
<table class="MsoTableGrid" border="1" cellspacing="0" cellpadding="0" style="border-collapse:collapse; border:none">
<tbody>
<tr>
<td width="623" valign="top" style="width:467.5pt; border:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt">
<p class="MsoNormal">controller-0:/home/sysadmin# sm-dump</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">-Service_Groups------------------------------------------------------------------------</p>
<p class="MsoNormal">oam-services standby standby</p>
<p class="MsoNormal">controller-services standby standby</p>
<p class="MsoNormal">cloud-services standby standby</p>
<p class="MsoNormal">patching-services standby standby</p>
<p class="MsoNormal">directory-services active active</p>
<p class="MsoNormal">web-services active active</p>
<p class="MsoNormal">storage-services active active</p>
<p class="MsoNormal">storage-monitoring-services standby standby</p>
<p class="MsoNormal">vim-services standby standby</p>
<p class="MsoNormal">---------------------------------------------------------------------------------------</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">-Services------------------------------------------------------------------------------</p>
<p class="MsoNormal">oam-ip enabled-standby disabled</p>
<p class="MsoNormal">management-ip enabled-standby disabled</p>
<p class="MsoNormal">drbd-pg enabled-standby enabled-standby</p>
<p class="MsoNormal">drbd-rabbit enabled-standby enabled-standby</p>
<p class="MsoNormal">drbd-cgcs enabled-standby enabled-standby</p>
<p class="MsoNormal">drbd-platform enabled-standby enabled-standby</p>
<p class="MsoNormal">pg-fs enabled-standby disabled</p>
<p class="MsoNormal">rabbit-fs enabled-standby disabled</p>
<p class="MsoNormal">nfs-mgmt enabled-standby disabled</p>
<p class="MsoNormal">cgcs-fs enabled-standby disabled</p>
<p class="MsoNormal">platform-fs enabled-standby disabled</p>
<p class="MsoNormal">postgres enabled-standby disabled</p>
<p class="MsoNormal">rabbit enabled-standby disabled</p>
<p class="MsoNormal">cgcs-export-fs enabled-standby disabled</p>
<p class="MsoNormal">platform-export-fs enabled-standby disabled</p>
<p class="MsoNormal">cgcs-nfs-ip enabled-standby disabled</p>
<p class="MsoNormal">platform-nfs-ip enabled-standby disabled</p>
<p class="MsoNormal">sysinv-inv enabled-standby disabled</p>
<p class="MsoNormal">sysinv-conductor enabled-standby disabled</p>
<p class="MsoNormal">mtc-agent enabled-standby disabled</p>
<p class="MsoNormal">hw-mon enabled-standby disabled</p>
<p class="MsoNormal">dnsmasq enabled-standby disabled</p>
<p class="MsoNormal">fm-mgr enabled-standby disabled</p>
<p class="MsoNormal">keystone enabled-standby disabled</p>
<p class="MsoNormal">open-ldap enabled-active enabled-active</p>
<p class="MsoNormal">snmp enabled-standby disabled</p>
<p class="MsoNormal">lighttpd enabled-active enabled-active</p>
<p class="MsoNormal">horizon enabled-active enabled-active</p>
<p class="MsoNormal">patch-alarm-manager enabled-standby disabled</p>
<p class="MsoNormal">mgr-restful-plugin enabled-active enabled-active</p>
<p class="MsoNormal">ceph-manager enabled-standby disabled</p>
<p class="MsoNormal">vim enabled-standby disabled</p>
<p class="MsoNormal">vim-api enabled-standby disabled</p>
<p class="MsoNormal">vim-webserver enabled-standby disabled</p>
<p class="MsoNormal">guest-agent enabled-standby disabled</p>
<p class="MsoNormal">haproxy enabled-standby disabled</p>
<p class="MsoNormal">pxeboot-ip enabled-standby disabled</p>
<p class="MsoNormal">drbd-extension enabled-standby enabled-standby</p>
<p class="MsoNormal">extension-fs enabled-standby disabled</p>
<p class="MsoNormal">extension-export-fs enabled-standby disabled</p>
<p class="MsoNormal">etcd enabled-standby disabled</p>
<p class="MsoNormal">drbd-etcd enabled-standby enabled-standby</p>
<p class="MsoNormal">etcd-fs enabled-standby disabled</p>
<p class="MsoNormal">barbican-api enabled-standby disabled</p>
<p class="MsoNormal">barbican-keystone-listener enabled-standby disabled</p>
<p class="MsoNormal">barbican-worker enabled-standby disabled</p>
<p class="MsoNormal">cluster-host-ip enabled-standby disabled</p>
<p class="MsoNormal">docker-distribution enabled-standby disabled</p>
<p class="MsoNormal">dockerdistribution-fs enabled-standby disabled</p>
<p class="MsoNormal">drbd-dockerdistribution enabled-standby enabled-standby</p>
<p class="MsoNormal">ceph-mon enabled-standby disabled</p>
<p class="MsoNormal">cephmon-fs enabled-standby disabled</p>
<p class="MsoNormal">drbd-cephmon enabled-standby enabled-standby</p>
<p class="MsoNormal">ceph-osd enabled-active enabled-active</p>
<p class="MsoNormal">helmrepository-fs enabled-standby disabled</p>
<p class="MsoNormal">registry-token-server enabled-standby disabled</p>
<p class="MsoNormal">dbmon enabled-standby enabled-standby</p>
<p class="MsoNormal">------------------------------------------------------------------------------</p>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">In order to verify it, we captured “neutron-server” logs of both the StarlingX servers.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><b>Case 1: Horizon is accessed using Floating Ip and One VM is spawned</b></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">It goes on Active Controller and “neutron-server” logs of Active Controller shows the creation of network port and assigning port to the VM.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><b>Case 2: Horizon is accessed using Floating Ip and Two VM’s are spawned simultaneously</b></p>
<p class="MsoNormal"><b> </b></p>
<p class="MsoNormal">In this case, one VM gets spawned on Active Controller and Other on Standby Controller.
</p>
<p class="MsoNormal">But “neutron-server” logs of both the controller shows the creation of network port and assigning port to the VM.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><b>Inference: </b></p>
<p class="MsoNormal">As per our understanding, if all the “Openstack Services” were configured in Active/Standby, then request would have come to only Active Controller.</p>
<p class="MsoNormal">But, in this case both the Controllers are serving the request which implies that all the Openstack Services are configured in
<b>“Active/Active”</b> State</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Is our understanding correct that the StarlingX Nodes are in Active-Standby configuration, but all the Openstack Services are configured in Active-Active State?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Regards</p>
<p class="MsoNormal">Anirudh Gupta</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<div>
<div style="border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="">From:</span></b><span lang="EN-US" style=""> Lin, Shuicheng <shuicheng.lin@intel.com>
<br>
<b>Sent:</b> 03 December 2019 05:57<br>
<b>To:</b> Anirudh Gupta <Anirudh.Gupta@hsc.com>; starlingx-discuss@lists.starlingx.io<br>
<b>Subject:</b> RE: [Starlingx-discuss] StarlingX 2.0 Duplex Controller in Active/Active HA</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-US" style="">Hi Anirudh,</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">What is the purpose or benefit you want to have 2 active controller?</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">I think it is reasonable there is 1 active controller only, and another controller is standby for backup, this is the meaning of HA.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">Two active controller at the same time will cause brain split.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">What do you mean “Openstack Services”? Openstack is containerized now, and run in both nodes by K8S.</span></p>
<p class="MsoNormal"><span lang="EN-US" style=""> </span></p>
<div>
<p class="MsoNormal"><span lang="EN-US" style="">Best Regards</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">Shuicheng</span></p>
</div>
<p class="MsoNormal"><span lang="EN-US" style=""> </span></p>
<div>
<div style="border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><a name="_____replyseparator"></a><b><span lang="EN-US" style="">From:</span></b><span lang="EN-US" style=""> Anirudh Gupta <<a href="mailto:Anirudh.Gupta@hsc.com" target="_blank" rel="noopener noreferrer">Anirudh.Gupta@hsc.com</a>>
<br>
<b>Sent:</b> Monday, December 2, 2019 6:59 PM<br>
<b>To:</b> Lin, Shuicheng <<a href="mailto:shuicheng.lin@intel.com" target="_blank" rel="noopener noreferrer">shuicheng.lin@intel.com</a>>;
<a href="mailto:starlingx-discuss@lists.starlingx.io" target="_blank" rel="noopener noreferrer">
starlingx-discuss@lists.starlingx.io</a><br>
<b>Subject:</b> RE: [Starlingx-discuss] StarlingX 2.0 Duplex Controller in Active/Active HA</span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal">Hi <span lang="EN-US" style="">Shuicheng,</span></p>
<p class="MsoNormal"><span lang="EN-US" style=""> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="">All the services on the Active Controller are “enabled-active” and I can see some services “enabled-standby” on the standby controller.</span></p>
<p class="MsoNormal"><span lang="EN-US" style=""> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="">Is there any way we can set all the Openstack Services “enabled-active” on both the Active and Standby Node?</span></p>
<p class="MsoNormal"><span lang="EN-US" style=""> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="">Regards</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">Anirudh Gupta</span></p>
<p class="MsoNormal"> </p>
<div>
<div style="border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="">From:</span></b><span lang="EN-US" style=""> Lin, Shuicheng <<a href="mailto:shuicheng.lin@intel.com" target="_blank" rel="noopener noreferrer">shuicheng.lin@intel.com</a>>
<br>
<b>Sent:</b> 01 December 2019 12:42<br>
<b>To:</b> Anirudh Gupta <<a href="mailto:Anirudh.Gupta@hsc.com" target="_blank" rel="noopener noreferrer">Anirudh.Gupta@hsc.com</a>>;
<a href="mailto:starlingx-discuss@lists.starlingx.io" target="_blank" rel="noopener noreferrer">
starlingx-discuss@lists.starlingx.io</a><br>
<b>Subject:</b> RE: [Starlingx-discuss] StarlingX 2.0 Duplex Controller in Active/Active HA</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-US" style="">Hi Anirudh,</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">Per my understanding, for duplex, there is always 1 active node and 1 standby node.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">The </span><b><i><span style="font-size:10.5pt; font-family:"Segoe UI",sans-serif; color:#333333; background:white">“</span>active/active”</i></b><i> or
<b>“active/standby”</b></i><span lang="EN-US" style=""> in the document is for “</span><span lang="EN-US" style="font-size:10.5pt; font-family:"Segoe UI",sans-serif; color:#333333; background:white">services</span><span lang="EN-US" style="">”, not for node.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">If you try to run “sudo sm-dump” in the standby node, you will find some services are “active”, while some services are “standby”.</span></p>
<p class="MsoNormal"><span lang="EN-US" style=""> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="">For the 2<sup>nd</sup> question, VMs are running in compute node. And for duplex, both controller nodes are compute nodes also.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">And the “Active/Standby” is for controller, not for compute function, that is why VMs will run in both node.</span></p>
<p class="MsoNormal"><span lang="EN-US" style=""> </span></p>
<div>
<p class="MsoNormal"><span lang="EN-US" style="">Best Regards</span></p>
<p class="MsoNormal"><span lang="EN-US" style="">Shuicheng</span></p>
</div>
<p class="MsoNormal"><span lang="EN-US" style=""> </span></p>
<div>
<div style="border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="">From:</span></b><span lang="EN-US" style=""> Anirudh Gupta <<a href="mailto:Anirudh.Gupta@hsc.com" target="_blank" rel="noopener noreferrer">Anirudh.Gupta@hsc.com</a>>
<br>
<b>Sent:</b> Thursday, November 28, 2019 11:45 AM<br>
<b>To:</b> <a href="mailto:starlingx-discuss@lists.starlingx.io" target="_blank" rel="noopener noreferrer">
starlingx-discuss@lists.starlingx.io</a>; <a href="mailto:starlingx-announce@lists.starlingx.io" target="_blank" rel="noopener noreferrer">
starlingx-announce@lists.starlingx.io</a><br>
<b>Subject:</b> Re: [Starlingx-discuss] StarlingX 2.0 Duplex Controller in Active/Active HA</span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal">Hi Team,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Can someone please give me any update on my Query:</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><i>I need to install StarlingX 2.0 Duplex Bare Metal.</i></p>
<p class="MsoNormal"><i>As per the document, there can be 2 modes in which HA controllers can be configure i.e.
</i><i><span style="font-size:10.5pt; font-family:"Segoe UI",sans-serif; color:#333333; background:white">either
<b>“</b></span><b>active/active”</b> or <b>“active/standby”<br>
</b><a href="https://ind01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.starlingx.io%2Fdeploy_install_guides%2Fr2_release%2Fbare_metal%2Faio_duplex.html&data=02%7C01%7C%7Cf562d0dcaf78415e665908d77787894c%7Ca65543b9ae9349b580f00b85821adc50%7C1%7C0%7C637109296343270789&sdata=N6j0aSQyfDqfvksPZddQuM%2FcQRYg2UfEQiRYhQc7JoE%3D&reserved=0" target="_blank" rel="noopener noreferrer">https://docs.starlingx.io/deploy_install_guides/r2_release/bare_metal/aio_duplex.html</a></i></p>
<p class="MsoNormal"><i> </i></p>
<ul type="disc" style="margin-top:0cm">
<li class="MsoListParagraph" style="margin-left:0cm"><i>Can someone please suggest the steps to configure Active-Active state?</i></li><li class="MsoListParagraph" style="margin-left:0cm"><i>I have 2 kubernetes pods corresponding to each Openstack Service in Duplex Setup and when I spawn any VM, it goes on any of the two controllers. So, is this the standard implementation in StarlingX? What
needs to be done in Active-Standby configuration?</i></li><li class="MsoListParagraph" style="margin-left:0cm"><i>And, what difference it would have on my deployment in terms of functionality?</i></li></ul>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Regards</p>
<p class="MsoNormal">Anirudh Gupta</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<div>
<div style="border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="">From:</span></b><span lang="EN-US" style=""> Anirudh Gupta
<br>
<b>Sent:</b> 26 November 2019 10:30<br>
<b>To:</b> <a href="mailto:starlingx-discuss@lists.starlingx.io" target="_blank" rel="noopener noreferrer">
starlingx-discuss@lists.starlingx.io</a>; <a href="mailto:starlingx-announce@lists.starlingx.io" target="_blank" rel="noopener noreferrer">
starlingx-announce@lists.starlingx.io</a><br>
<b>Subject:</b> StarlingX 2.0 Duplex Controller in Active/Active HA</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Hi Team,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I need to install StarlingX 2.0 Duplex Bare Metal.</p>
<p class="MsoNormal">As per the document, there can be 2 modes in which HA controllers can be configure i.e.
<span style="font-size:10.5pt; font-family:"Segoe UI",sans-serif; color:#333333; background:white">
either <b>“</b></span><b>active/active”</b> or <b>“active/standby”<br>
</b><a href="https://ind01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.starlingx.io%2Fdeploy_install_guides%2Fr2_release%2Fbare_metal%2Faio_duplex.html&data=02%7C01%7C%7Cf562d0dcaf78415e665908d77787894c%7Ca65543b9ae9349b580f00b85821adc50%7C1%7C0%7C637109296343270789&sdata=N6j0aSQyfDqfvksPZddQuM%2FcQRYg2UfEQiRYhQc7JoE%3D&reserved=0" target="_blank" rel="noopener noreferrer">https://docs.starlingx.io/deploy_install_guides/r2_release/bare_metal/aio_duplex.html</a></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Can someone please suggest the steps to configure Active-Active state?</p>
<p class="MsoNormal">And, what difference it would have on my deployment in terms of functionality?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Regards</p>
<p class="MsoNormal">Anirudh Gupta</p>
<p class="MsoNormal"> </p>
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