file descriptors

File Descriptors

On a busy Linux system, you may need to increase the number of file descriptors available.

System-wide descriptors are set via /proc/sys/fs/file-max

On RedHat Enterprise 3.x this is set by default to 104855, which should be plenty.
The per-user limit is still low at 1024

As root, you can issue the command (e.g. in safe_asterisk):
ulimit -n 65535

However, if running Asterisk as non-root, then edit via:
/etc/security/limits.conf
asterisk soft nofile 65535
asterisk hard nofile 65535

• Asterisk at large
• Asterisk dimensioning