On Wednesday, Mar 17, 2004, at 20:38 US/Eastern, skyhawk wrote:
We use kerberos system on redhat Linux 9.0 ...
But kernel file descriptors parameter is only 1024...
There are generally two sets of limits, "soft" limits which you can raise, and "hard" limits which you cannot. For example, some people will limit "coredumpsize" to 0, and then raise it back up again if they want some crashing program to generate a core file for later examination. The limits you were examining are almost certainly the soft limits. Try using the limit or ulimit command (depending on what shell you use -- it's built in) to raise the number of file descriptors.
I'm pretty sure we're not going out of our way to reduce the soft (or hard) limit on file descriptors. The 1024 value is probably inherited from whatever the system sets at startup time, which ought to be good enough for nearly all user programs.
Our system needs file descriptors > 16000 -_-
Wow. I really hope that's just for one or two special daemon processes that you might restart while logged in remotely, and not for user programs in general....
Ken
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