From: Brian Candler <B.Candler@...>
Date: 2007-05-11T18:05:18+09:00
Subject: Re: DRb connection error with more than 250+ DRb services

On Fri, May 11, 2007 at 05:56:21PM +0900, Jung wook Son wrote:
> Brian Candler wrote:
> > On Fri, May 11, 2007 at 05:25:45PM +0900, J. Wook wrote:
> >> #<Errno::EMFILE: Too many open files - socket(2)> raised.
> > 
> > What does ulimit -a show? Particularly look at max open files
> 
> dev@seoul$ ulimit -a
> core file size          (blocks, -c) 0
> data seg size           (kbytes, -d) unlimited
> max nice                        (-e) 20
> file size               (blocks, -f) unlimited
> pending signals                 (-i) unlimited
> max locked memory       (kbytes, -l) unlimited
> max memory size         (kbytes, -m) unlimited
> open files                      (-n) 1024
> pipe size            (512 bytes, -p) 8
> POSIX message queues     (bytes, -q) unlimited
> max rt priority                 (-r) unlimited
> stack size              (kbytes, -s) 8192
> cpu time               (seconds, -t) unlimited
> max user processes              (-u) unlimited
> virtual memory          (kbytes, -v) unlimited
> file locks                      (-x) unlimited

Hmm. Should be enough, unless you're opening other file-like objects in your
program. But you could try raising/lowering ulimit -n to see if it makes a
difference.