Hi Ankush:
You can check doc [1] , select ‘All-in-one (lowlatency) Controller’ for lowlatency , this is same all release r3 , r4 changes, if you want to use Simplex or Duplex system .
For multi Nodes setup , only worker nodes support low-latency.
There is no pre-requirement for a node to be a low-latency node .
I this there is no way to change node to low-latency node after installation except re-install.
Thanks.
BR
Austin Sun.
From: Rai, Ankush <Ankush.Rai@commscope.com>
Sent: Thursday, September 24, 2020 11:42 AM
To: Penney, Don <Don.Penney@windriver.com>; starlingx-discuss@lists.starlingx.io
Subject: Re: [Starlingx-discuss] how to get rt-kernel support ?
Thank you for your response to this query. But I am still not clear on this. Are you saying that, the kernel-rt RPM will get installed only for “lowlatency” nodes?
If my understanding is correct then I have few more questions:
I have All-in-one-Duplex mode of deployment, both having “controller” personality and “controller,worker” as subfunctions.
capabilities | {u'stor_function': u'monitor', u'Personality': u'Controller-Active'}
capabilities | {u'stor_function': u'monitor', u'Personality': u'Controller-Standby'}
personality | controller
subfunctions | controller,worker
Regards,
Ankush
From: Penney, Don <Don.Penney@windriver.com>
Sent: Thursday, September 24, 2020 12:51 AM
To: Rai, Ankush <Ankush.Rai@commscope.com>;
starlingx-discuss@lists.starlingx.io
Subject: RE: how to get rt-kernel support ?
The kernel-rt RPM is installed on the “lowlatency” nodes. For AIO, you’d want to install AIO-lowlatency.
From: Rai, Ankush <Ankush.Rai@commscope.com>
Sent: Wednesday, September 23, 2020 3:05 PM
To: starlingx-discuss@lists.starlingx.io
Subject: [Starlingx-discuss] how to get rt-kernel support ?
Hi,
I couldn’t find the rpm for rt-kernel. Is starlingx comes up with rt-kernel support or it need to be patched ?
Any pointer to get the rt-kernel support ?
software_version | 20.06
I am using the latest green image:
http://mirror.starlingx.cengn.ca/mirror/starlingx/master/centos/latest_green_build/outputs/iso/bootimage.iso
Required rt-kernel patch: kernel-rt-3.10.0-693.2.2.rt56.623.el7.x86_64
Thanks,
Ankush