Re: [condor-users] Fwd: [Medusa-users] ulimit -a

[Nick LeRoy <nleroy@xxxxxxxxxxx>]

On Monday 29 September 2003 8:58 am, Scott Koranda wrote:
> Hi,
>
> Hmmmm. The limit is not being set in /etc/profile. It is being set in
> /etc/security/limits.conf, but perhaps your failure mechanism is the
> correct one.

Well...  I can think of a couple, probably all obvious things that you've 
thought of, but off the top of my head:

1. Restart Condor after the change; the condor master process would be running 
with the original limits until it's restarted.  Actually, a condor_restart 
-master probably wouldn't do the trick, either.  This is because the last 
thing the master does on a restart is "exec condor_master", so the new master 
would inherit the ulimit from the original master.  :-(

2. Doest the user that's running condor have it's own limit set, or is it set 
in one of the startup files?

> Thanks, I will dig deeper.
>
> Cheers,
>
> Scott

-Nick

> > Can it be that you changed the number of open files in a script, which
> > does not get executed for user "nobody"? E.g., /etc/profile gets
> > executed for normal users, but not for user "nobody" under which Condor
> > normally runs jobs?
> >
> > Regards,
> > Alexander Klyubin
> >
> > Scott Koranda wrote:
> > >Hello,
> > >
> > >We recently changed the nodes in our cluster to allow 2048 open file
> > >descriptors rather than the standard 1024. On any node in our cluster
> > >I see the following:
> > >
> > >[skoranda@medusa-slave001 ]$ ulimit -n
> > >2048
> > >
> > >But as the user below points out, when the ulimit is run via Condor in
> > >the vanilla universe we always get 1024 and not 2048.
> > >
> > >Any ideas?
> > >
> > >Thanks,
> > >
> > >Scott
> > >
> > >----- Forwarded message from Vladimir Dergachev
> > ><volodya@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> -----
> > >
> > >Subject: [Medusa-users] ulimit -a
> > >Date: Sun, 28 Sep 2003 20:15:41 -0400 (EDT)
> > >
> > >
> > >It was a while since I needed to run my statistics generating program
> > > that needs to open many files at once, and for some reason I can not do
> > > it using condor.
> > >
> > >condor_run "ulimit -a" reports limit of open files as 1024, but when I
> > > rsh to a node and run ulimit -a myself I get 2048 (as it should be
> > > after recent changes).
> > >
> > >Would anyone have a suggestion how I can explain to condor not to lower
> > >the limit ?
> > >
> > >                   thank you !
> > >
> > >                        Vladimir Dergachev
> > >
> > >
> > >_______________________________________________
> > >Medusa-users mailing list
> > >
> > >----- End forwarded message -----
> > >Condor Support Information:
> > >http://www.cs.wisc.edu/condor/condor-support/
> > >To Unsubscribe, send mail to majordomo@xxxxxxxxxxx with
> > >unsubscribe condor-users <your_email_address>
> >
> > Condor Support Information:
> > http://www.cs.wisc.edu/condor/condor-support/
> > To Unsubscribe, send mail to majordomo@xxxxxxxxxxx with
> > unsubscribe condor-users <your_email_address>
>
> Condor Support Information:
> http://www.cs.wisc.edu/condor/condor-support/
> To Unsubscribe, send mail to majordomo@xxxxxxxxxxx with
> unsubscribe condor-users <your_email_address>

Condor Support Information:
http://www.cs.wisc.edu/condor/condor-support/
To Unsubscribe, send mail to majordomo@xxxxxxxxxxx with
unsubscribe condor-users <your_email_address>