[slurm-users] Fwd: An issue with HOSTNAME env var when using salloc/srun for interactive job with Slurm 17.11.7

[CB]

Hi,

We've recently upgraded to Slurm 17.11.7 from 16.05.8.

We noticed that the environment variable, HOSTNAME, does not refelct the
compute node with an interactive job using the salloc/srun command.
Instead it still points to the submit hostname although .SLURMD_NODENAME
reflects the correct  compute node name.

$ salloc --immediate -p manycore --constraint=xeon64c --exclusive -O -N 1
--qos=high  srun --pty bash -i
salloc: Granted job allocation 2291315
salloc: Waiting for resource configuration
salloc: Nodes mc-1 are ready for job

[user1 at mc-1 test]$ echo $HOSTNAME
login-3

[user1 at mc-1 test]$ echo $SLURMD_NODENAME
nc-1

Is this a bug introduced with 17.11.x version or something that has been
there before?  According to our user, it used to point the compute node
name.

BTW, if I test the environment variable with a batch job, HOSTNAME
environment variable reflects the compute node name correctly.

Thanks,
- Chansup
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