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<blockquote
cite="mid:43102.86.0.49.130.1240930504.squirrel@paleo.ija.csic.es"
type="cite">
<pre wrap="">Thanks for your answer, Jerry. It seems the problem is related to your
comment "Are these nodes allocated to a job of yours?"
In effect, I've realized that if I've got a job allocated to a node, I can
simply access to it through
</pre>
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<pre wrap="">ssh nodename
</pre>
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<pre wrap=""><!---->
Thus, more specifically, the problem would be to access to a node without
allocated active jobs of my own. The problem is that if a job is
interrupted with qdel, I've realized that some remaining related processes
may stay working in the slave nodes. Thus it would useful to me as a user
to also access these nodes to manually kill these active processes.
</pre>
</blockquote>
The administrators of this cluster need to have some process cleanup
happen in the epilogue to make sure that "leftover" user processes are
purged at job end.<br>
<br>
Allowing a user access to a node not running a job of theirs is a
security risk IMHO, as you could ssh to a node running someone else's
job, and possibly access data not belonging to them. Or on a
non-nefarious note, you as a user not assigned to the node, could
"accidentally" kill the wrong process, and affect the other user's job
negatively.<br>
<br>
--Jerry<br>
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<blockquote
cite="mid:43102.86.0.49.130.1240930504.squirrel@paleo.ija.csic.es"
type="cite">
<pre wrap="">
Actually my ``remaining'' processes have just finished, but this would
still be useful for a near future.
Javier
...
</pre>
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<pre wrap="">
</pre>
<blockquote type="cite">
<pre wrap="">Hello all,
(I'm new to cluster usage)
If I log into a torque cluster, e.g.:
</pre>
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<pre wrap="">ssh -Y <a class="moz-txt-link-abbreviated" href="mailto:myusername@cluster.domain.org">myusername@cluster.domain.org</a>
</pre>
</blockquote>
<pre wrap="">and this cluster has nodes with the names:
cluster01.domain.org
cluster02.domain.org
...
clusternn.domain.org
How could I, after I have logged in the cluster, to connect to a
specific
node to see the active processes in it? I would like to monitor specific
processes (and probably kill them) within specific nodes. I've tried
several options:
[myusername@master00 ~]ssh -Y cluster01
[myusername@master00 ~]ssh -Y myusername@cluster01
[myusername@master00 ~]ssh -Y <a class="moz-txt-link-abbreviated" href="mailto:myusername@cluster01.domain.org">myusername@cluster01.domain.org</a>
without success. In all of them my password is required and my login
password is not accepted.
</pre>
</blockquote>
<pre wrap="">It all depends on how the security and access is setup for that specific
cluster. What is the access model, ssh,rsh etc, Is it pam based, or
/etc/security/access.conf? Do they use ssh-keys? Are these nodes
allocated to a job of yours?
--Jerry
</pre>
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<pre wrap=""><!---->
</pre>
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