[Orca-users] too many open files issue

[Blair Zajac]

Stoltzfus, Mark (HQP) wrote:

> 
> I've googled for the answer to my current orca issue, which is that I'm 
> getting errors such as this:
> 
> ./orca: warning: cannot create Orca::HTMLFile object: cannot open 
> `/www/sites/orca/html/orcallator/o_gold_gauge_qfe5Ipkt_per_s,__qfe5Opkt_per_s.html.htm' 
> for writing: Too many open files.
> 
> And I saw that about two years ago, this problem was discovered to be 
> specific to perl on Solaris, having to do with fopen().  I've tested the 
> perl code that was posted to the list on both Solaris and Tru64, and it 
> only hit the 256 descriptor limit on Solaris.  So, the question is, does 
> anyone know a way around this?  The solution mentioned on the FAQ 
> doesn't fix this (manually setting ulimit in the shell).

Mark,

Check your version of lib/Orca/OpenFileHash.pm and see how large the open file 
cache is.  In the current version of Orca, it is 100 files, so that should be 
small enough.

# Set up a cache of 100 open file descriptors for the source data
# files.  This leaves a large number of free file descriptors for
# other use in the program.
use vars qw($open_file_cache);
unless ($open_file_cache) {
   $open_file_cache = Orca::OpenFileHash->new(100)
}

Check your OpenFileHash.pm and see how small it is.

What is the ulimit for your Orca process?

Blair

-- 
Blair Zajac <blair at orcaware.com>
Plots of your system's performance - http://www.orcaware.com/orca/