Copy NFILES knob from redhat/varnish.initrc.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1456 d4fa192b-c00b-0410-8231-f00ffab90ce4

debian/varnish.default

@@ -4,6 +4,9 @@
 # shell script fragment.
 #
 
+# Maximum number of open files (for ulimit -n)
+NFILES=131072
+
 # This file contains 4 alternatives, please use only one.
 
 ## Alternative 1, Minimal configuration, no VCL

debian/varnish.init

@@ -31,6 +31,9 @@ if [ -f /etc/default/varnish ] ; then
         . /etc/default/varnish
 fi
 
+# Open files (usually 1024, which is way too small for varnish)
+ulimit -n ${NFILES:-131072}
+
 # If $DAEMON_OPTS is not set at all in /etc/default/varnish, use minimal useful
 # defaults (Backend at localhost:8080, a common place to put a locally
 # installed application server.)