Greetings,

Thanks for responding!

On 12/28/22 20:35, Brian Andrus wrote:
I suspect if you delete /var/lib/slurmrestd.socket and then start slurmrestd, it will create it as the user you need it to be.

Or just change the owner of it to the slurmrestd owner.


No go on that. Because /var/lib requires root to create /var/lib/slurmrestd.socket . Which is what I meant by "has to write into a root-only directory to create the unix socket".
Here, I'll show what happens with me.
Spun up a virtual machine with nothing changed on a fresh compile of 22.05.07.

# rm -rf /var/lib/slurmrestd.socket
# systemctl start slurmrestd
# systemctl status slurmrestd
<snip>
Active: failed (Result: exit-code) since Thu 2022-12-29 08:39:45 CST; 54s ago
<snip>

# journalctl -xe
<snip>
Dec 29 08:39:45 testslurmvm.cluster slurmrestd[114317]: fatal: _create_socket: [unix:/var/lib/slurmrestd.socket] Unable to bind UNIX socket: Permission denied Dec 29 08:39:45 testslurmvm.cluster systemd[1]: slurmrestd.service: Main process exited, code=exited, status=1/FAILURE

Now what about giving ownership to the user?

# touch /var/lib/slurmrestd.socket
# systemctl start slurmrestd
# systemctl status slurmrestd
<snip>
Active: failed (Result: exit-code) since Thu 2022-12-29 08:45:37 CST; 1min 2s ago
<snip>
# journalctl -xe
<snip>
Dec 29 08:45:37 testslurmvm.cluster slurmrestd[114402]: error: Error unlink(/var/lib/slurmrestd.socket): Permission denied Dec 29 08:45:37 testslurmvm.cluster slurmrestd[114402]: fatal: _create_socket: [unix:/var/lib/slurmrestd.socket] Unable to bind UNIX socket: Address already in use

Again, it doesn't have permissions to modify those files nor create files inside that directory.

On 12/28/22 20:35, Brian Andrus wrote:
> I have been running slurmrestd as a separate user for some time.

Under 22.05.07? Because that's what broke things for me. And I think that it's this change:

| -- slurmrestd - switch users earlier on startup to avoid sockets being
| made as root.

I'm not saying it's a bad change either - but I don't see any documentation on the proper way to handle it and I don't feel like editing the service file is the proper way to handle it.

Thanks!

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