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<p>Oh, also ensure the dns is working properly on the node. It could
be that it isn't able to map the name to ip of the master.</p>
<p>Brian Andrus</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 6/4/2021 9:31 AM, Herc Silverstein
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1ceaf369-bdf0-fcf5-322a-8016c2b0a991@schrodinger.com">
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<div class="moz-text-flowed" style="font-family: -moz-fixed;
font-size: 13px;" lang="x-unicode">Hi, <br>
<br>
The slurmctld.log shows (for this node): <br>
<br>
... <br>
<br>
[2021-05-25T00:12:27.481] sched: Allocate JobId=3402729
NodeList=gpu-t4-4x-ondemand-44 #CPUs=1
Partition=gpu-t4-4x-ondemand <br>
[2021-05-25T00:12:27.482] sched: Allocate JobId=3402730
NodeList=gpu-t4-4x-ondemand-44 #CPUs=1
Partition=gpu-t4-4x-ondemand <br>
[2021-05-25T00:12:27.482] sched: Allocate JobId=3402731
NodeList=gpu-t4-4x-ondemand-44 #CPUs=1
Partition=gpu-t4-4x-ondemand <br>
[2021-05-25T00:15:29.043] error: Nodes gpu-t4-4x-ondemand-44 not
responding <br>
<br>
<br>
sinfo -R initially doesn't show it as problematic. Though I see
it goes into: <br>
<br>
gpu-t4-4x-ondemand up infinite 1 comp*
gpu-t4-4x-ondemand-44 <br>
<br>
However, the node where slurmctld is running knows about it: <br>
<br>
host gpu-t4-4x-ondemand-44 <br>
gpu-t4-4x-ondemand-44.virtual-cluster.local has address
10.4.64.11 <br>
<br>
and I can log in to the node: <br>
<br>
# systemctl status slurmd <br>
\u25cf slurmd.service - Slurm node daemon <br>
Loaded: loaded (/usr/lib/systemd/system/slurmd.service;
disabled; vendor preset: disabled) <br>
Active: active (running) since Tue 2021-05-25 00:12:24 UTC;
48s ago <br>
Process: 1874 ExecStart=/opt/slurm/sbin/slurmd $SLURMD_OPTIONS
(code=exited, status=0/SUCCESS) <br>
Main PID: 1876 (slurmd) <br>
Tasks: 1 <br>
Memory: 11.6M <br>
CGroup: /system.slice/slurmd.service <br>
\u2514\u25001876 /opt/slurm/sbin/slurmd -f
/etc/slurm/slurm.conf <br>
<br>
May 25 00:12:23 gpu-t4-4x-ondemand-44.virtual-cluster.local
systemd[1]: Starting Slurm node daemon... <br>
May 25 00:12:24 gpu-t4-4x-ondemand-44.virtual-cluster.local
systemd[1]: Can't open PID file /var/run/slurmd.pid (yet?)...ory
<br>
May 25 00:12:24 gpu-t4-4x-ondemand-44.virtual-cluster.local
systemd[1]: Started Slurm node daemon. <br>
Hint: Some lines were ellipsized, use -l to show in full. <br>
<br>
later: <br>
<br>
sinfo: <br>
<br>
gpu-t4-4x-ondemand up infinite 1 idle*
gpu-t4-4x-ondemand-44 <br>
<br>
root@service(eigen2):log# sinfo -R <br>
REASON USER TIMESTAMP NODELIST <br>
Not responding slurm 2021-05-25T00:45:40
gpu-t4-4x-ondemand-44 <br>
<br>
and slurmctld.log: <br>
<br>
[2021-05-25T00:15:29.043] error: Nodes gpu-t4-4x-ondemand-44 not
responding <br>
[2021-05-25T00:19:16.397] error: Nodes gpu-t4-4x-ondemand-44 not
responding, setting DOWN <br>
[2021-05-25T00:20:02.092] powering down node
gpu-t4-4x-ondemand-44 <br>
[2021-05-25T00:20:08.438] error: Nodes gpu-t4-4x-ondemand-44 not
responding, setting DOWN <br>
[2021-05-25T00:25:02.931] powering down node
gpu-t4-4x-ondemand-44 <br>
[2021-05-25T00:25:04.903] error: Nodes gpu-t4-4x-ondemand-44 not
responding, setting DOWN <br>
[2021-05-25T00:30:01.247] powering down node
gpu-t4-4x-ondemand-44 <br>
[2021-05-25T00:31:21.479] error: Nodes gpu-t4-4x-ondemand-44 not
responding, setting DOWN <br>
[2021-05-25T00:35:01.359] powering down node
gpu-t4-4x-ondemand-44 <br>
[2021-05-25T00:35:41.756] error: Nodes gpu-t4-4x-ondemand-44 not
responding, setting DOWN <br>
[2021-05-25T00:40:01.671] powering down node
gpu-t4-4x-ondemand-44 <br>
[2021-05-25T00:40:41.225] error: Nodes gpu-t4-4x-ondemand-44 not
responding, setting DOWN <br>
[2021-05-25T00:45:01.430] powering down node
gpu-t4-4x-ondemand-44 <br>
[2021-05-25T00:45:40.071] error: Nodes gpu-t4-4x-ondemand-44 not
responding, setting DOWN <br>
</div>
<p><br>
This makes sense given what it thinks the state is. However,
it's unclear why it thinks it's non-responding given that slurmd
is running and that it can be logged into. <br>
</p>
<p> Herc</p>
<p><br>
</p>
</blockquote>
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