ulimit


 
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Operating Systems Solaris ulimit
# 1  
Old 04-19-2007
ulimit

Hi,

I need to increase the open files on my server to run a test. Usually what I do is:
ulimit -n 5000


My questions are:

1] I want to set this parameter once and for all. What is the right parameter to set in /etc/system: rlim_fd_max or rlim_fd_cur?
2] How to make sure that this parameter won't make the system unstable?
3] What is the difference between “ulimit -a” and “ulimit -a -H”? Each one gives a different “open files” value.

thanks a lot.
# 2  
Old 04-19-2007
Quote:
Originally Posted by melanie_pfefer
1] I want to set this parameter once and for all. What is the right parameter to set in /etc/system: rlim_fd_max or rlim_fd_cur?
rlim_fd_cur
Quote:
Originally Posted by melanie_pfefer
2] How to make sure that this parameter won't make the system unstable?
I have never seen it cause a problem, but the only way to find out for sure is to try it.
Quote:
Originally Posted by melanie_pfefer
3] What is the difference between “ulimit -a” and “ulimit -a -H”? Each one gives a different “open files” value.
ulimit -a gives soft limits ( eg rlim_fd_cur ), which can be changed
ulimit -a -H give the hard limits ( absolute max values )
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