[3.0] 49d7e92 Set ulimit -u (RLIMIT_NPROC) to unlimited for RHEL init script.

[Tollef Fog Heen]

commit 49d7e92b2469845f8a1d21efa0fc925b6602fdb1
Author: Dag Haavi Finstad <daghf at varnish-software.com>
Date:   Mon Feb 25 11:07:39 2013 +0100

    Set ulimit -u (RLIMIT_NPROC) to unlimited for RHEL init script.

diff --git a/redhat/varnish.initrc b/redhat/varnish.initrc
index 19cc274..4afa6c5 100755
--- a/redhat/varnish.initrc
+++ b/redhat/varnish.initrc
@@ -56,6 +56,10 @@ start() {
 	# Varnish wants to lock shared memory log in memory. 
 	ulimit -l ${MEMLOCK:-82000}
 
+	# Maximum number of threads (default in CentOS is 1024, which
+	# is often too small for varnish)
+	ulimit -u ${NPROCS:-unlimited}
+
         # $DAEMON_OPTS is set in /etc/sysconfig/varnish. At least, one
         # has to set up a backend, or /tmp will be used, which is a bad idea.
 	if [ "$DAEMON_OPTS" = "" ]; then
diff --git a/redhat/varnish.sysconfig b/redhat/varnish.sysconfig
index d88712f..f5846c9 100644
--- a/redhat/varnish.sysconfig
+++ b/redhat/varnish.sysconfig
@@ -11,6 +11,9 @@ NFILES=131072
 # Default log size is 82MB + header
 MEMLOCK=82000
 
+# Maximum number of threads (for ulimit -u)
+NPROCS="unlimited"
+
 # Maximum size of corefile (for ulimit -c). Default in Fedora is 0
 # DAEMON_COREFILE_LIMIT="unlimited"