Hi Jeffrey,
On 10/30/23 20:15, Jeffrey R. Lang wrote:
The service is available in RHEL 8 via the EPEL package repository as
system-networkd, i.e. systemd-networkd.x86_64
253.4-1.el8 epel
Thanks for the info. We can install the systemd-networkd RPM from the
EPEL repo as you suggest.
I tried to understand the properties of systemd-networkd before
implementing it in our compute nodes. While there are lots of networkd
man-pages, it's harder to find an overview of the actual properties of
networkd. This is what I found:
* Networkd is a service included in recent versions of Systemd. It seems
to be an alternative to NetworkManager.
* Red Hat has stated that systemd-networkd is NOT going to be implemented
in RHEL 8 or 9.
* Comparing systemd-networkd and NetworkManager:
https://fedoracloud.readthedocs.io/en/latest/networkd.html
* Networkd is described in the Wikipedia article
https://en.wikipedia.org/wiki/Systemd
While networkd seems to be really nifty, I hesitate to replace
NetworkManager by networkd on our EL8 and EL9 systems because this is an
unsupported and only lightly tested setup, and it may require additional
work to keep our systems up-to-date in the future.
It seems to me that Max Rutkowski's solution in
https://github.com/maxlxl/network.target_wait-for-interfaces is less
intrusive than converting to systemd-networkd.
Best regards,
Ole
-----Original Message-----
From: slurm-users <slurm-users-boun...@lists.schedmd.com> On Behalf Of Ole Holm
Nielsen
Sent: Monday, October 30, 2023 1:56 PM
To: slurm-users@lists.schedmd.com
Subject: Re: [slurm-users] How to delay the start of slurmd until
Infiniband/OPA network is fully up?
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Hi Jens,
Thanks for your feedback:
On 30-10-2023 15:52, Jens Elkner wrote:
Actually there is no need for such a script since
/lib/systemd/systemd-networkd-wait-online should be able to handle it.
It seems that systemd-networkd exists in Fedora FC38 Linux, but not in
RHEL 8 and clones, AFAICT.
