[GE users] Rizing more than 1024 FD on SGE node (was Re: [GE users] ulimit -n and SGE)

Andreas.Haas at Sun.COM Andreas.Haas at Sun.COM
Fri Sep 21 13:25:27 BST 2007

On Fri, 21 Sep 2007, Xavier Beaudouin wrote:

> On Fri, 21 Sep 2007, Andreas.Haas at Sun.COM wrote:
>> On Thu, 20 Sep 2007, Rayson Ho wrote:
>>> Actually, I believe not that many jobs need over 1024 file descriptors.
>>> Can you login as root, and raise the fd limit, and start execd by hand
>>> from that shell?? Then let SGE schedule a job that needs to have more
>>> than 1024 fds to that host, and see how things go...
>> Yep, that must work. Actually I filed just
>>   http://gridengine.sunsource.net/issues/show_bug.cgi?id=2370
>> as counterpart for Bugster enhancement request #6533487. It suggests the 
>> fd-limit adjustment be done in sgeexecd script.
> This work like this...


> I was a bit puzzled about that because SGE superseed 
> /etc/security/limits.conf for core files, but not about FD.

Because SGE shepherd does a setrlimit(RLIMIT_CORE), but 
no setrlimit(RLIMIT_NOFILE) :-o


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