[slurm-users] sinfo: error: resolve_ctls_from_dns_srv: res_nsearch error: Unknown host

[Michael Lewis]

Thank you Brian, I do have the slurm.conf file and the system did read it properly as I was getting the logs in the directed spot.  What I had to do was set the SLURM_CONF environment variable to point ot the slurm.conf file.  All good now it seems.

Mike


From: slurm-users <slurm-users-bounces at lists.schedmd.com> on behalf of Brian Andrus <toomuchit at gmail.com>
Reply-To: Slurm User Community List <slurm-users at lists.schedmd.com>
Date: Friday, January 26, 2024 at 12:06 PM
To: "slurm-users at lists.schedmd.com" <slurm-users at lists.schedmd.com>
Subject: Re: [slurm-users] sinfo: error: resolve_ctls_from_dns_srv: res_nsearch error: Unknown host

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That error means it is not finding the slurm.conf file, so it is trying to do config-less mode and querying DNS for the SRV records.

Verify that you have /etc/slurm/slurm.conf on the system you are running that on

Also ensure you don't have any environment variables set that tell it to look elsewhere.

Brian Andrus
On 1/26/2024 6:38 AM, Michael Lewis wrote:
Hi All,

I’m trying to get slurm-23.11.3 running on Ubuntu 20.04 and running on a stand alone system.  I’m running into an issue I can not find the answer to.  After compiling and installing when I fire up slurmctld and slurmd I get an error from sinfo:


sinfo: error: resolve_ctls_from_dns_srv: res_nsearch error: Unknown host

sinfo: error: fetch_config: DNS SRV lookup failed

sinfo: error: _establish_config_source: failed to fetch config

sinfo: fatal: Could not establish a configuration source

I looks like a DNS issue but the system has no issue resolving to its hostname or localhost.  The slurm.conf file is also being read properly as I have the logs directed to a place convenient to me.  I see lots have had these same issues but cannot find a clear resolution.

I have slurm running on a stand alone system in another lab with and identical setup without issue.  Any advice would be greatly appreciated.

Thanks,

Mike


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