[ale] "Too many open files" while opening a socket on Ubuntu

[Jim Kinney]

check /proc/sys/fs/file-max (320376 F10)
                        /kernel/threads-max (77824 F10)

Also, I recall that java has some limits as well but I have no recall
of where those get tweaked. I'm running Openjava on F10.

On Wed, Mar 4, 2009 at 9:58 PM, JK <jknapka at kneuro.net> wrote:
> I have a Java app that needs to open many many UDP sockets.  When
> it's opened around 120 of them, further attempts fail with a
> "Too many open files" exception.  It also starts a thread to handle
> traffic on each of these sockets.  This error happens on Ubuntu 8.10,
> but not on Fedora 8.
>
> ulimit -a says both max user processes and max open files = 65000
> (because I changed them in /etc/security/limits.conf). I mention
> user processes because I know Linux threads are implemented as
> kernel-level processes, so I thought that might be relevant.
>
> Any ideas?  Google is leading me only to answers related to
> ulimits.  It certainly seems to be a configuration issue with user
> resource limits, but I don't see any obvious way to change (or
> discover the values of) limits related to sockets.
>
> I'd really hate to have to go back to Fedora to solve this :-(
>
> Thanks,
>
> -- JK
>
>
> --
> I do not particularly want to go where the money is -
>  it usually does not smell nice there. -- A. Stepanov
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-- 
-- 
James P. Kinney III