Number of socket

[Jorge Prado T]

hi,
In HP-UX 11i?
As is controlled the number of socket opened by an application? a user? or the complete system?

Thank in advance

Jorge Prado T.

[A. Clay Stephenson · Accepted solution]

Because sockets are implemented as file descriptors both per-process (maxfiles_lim) and system-wide limits (nfile) can apply. There can also be other causes. The best approach to narrowing your problem is to capture or note the errno value (often the exit status of a well-written program). You then examine the file /usr/include/sys/errno.h and match your errno numerical value to a symbolic value(e.g 12 == ENOMEM). Finally, do a man 2 socket and find the error that matches your errno. That's UNIX problem solving kindergarten.

[Sandman!]

It is controlled on a global basis with the "nfile" kernel parameter and on a per process basis with the "maxfiles_lim" parameter. This is because a socket looks like a standard file You can view it with the following command:

# kmtune -q nfile

# kmtune -q maxfiles_lim

cheers!