Hi Anirudh,

Per my understanding, for duplex, there is always 1 active node and 1 standby node.

The “active/active” or “active/standby” in the document is for “services”, not for node.

If you try to run “sudo sm-dump” in the standby node, you will find some services are “active”, while some services are “standby”.

For the 2^nd question, VMs are running in compute node. And for duplex, both controller nodes are compute nodes also.

And the “Active/Standby” is for controller, not for compute function, that is why VMs will run in both node.

Best Regards

Shuicheng

From: Anirudh Gupta <Anirudh.Gupta@hsc.com>
Sent: Thursday, November 28, 2019 11:45 AM
To: starlingx-discuss@lists.starlingx.io; starlingx-announce@lists.starlingx.io
Subject: Re: [Starlingx-discuss] StarlingX 2.0 Duplex Controller in Active/Active HA

Hi Team,

Can someone please give me any update on my Query:

I need to install StarlingX 2.0 Duplex Bare Metal.

As per the document, there can be 2 modes in which HA controllers can be configure i.e. either “active/active” or “active/standby”
https://docs.starlingx.io/deploy_install_guides/r2_release/bare_metal/aio_duplex.html

Can someone please suggest the steps to configure Active-Active state?
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?
And, what difference it would have on my deployment in terms of functionality?

Regards

Anirudh Gupta

From: Anirudh Gupta
Sent: 26 November 2019 10:30
To: starlingx-discuss@lists.starlingx.io; starlingx-announce@lists.starlingx.io
Subject: StarlingX 2.0 Duplex Controller in Active/Active HA

Hi Team,

I need to install StarlingX 2.0 Duplex Bare Metal.

As per the document, there can be 2 modes in which HA controllers can be configure i.e. either “active/active” or “active/standby”
https://docs.starlingx.io/deploy_install_guides/r2_release/bare_metal/aio_duplex.html

Can someone please suggest the steps to configure Active-Active state?

And, what difference it would have on my deployment in terms of functionality?

Regards

Anirudh Gupta

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