chkconfig being the recommended way to manage services in rhel, we should add support for it in the solr script.

What is needed is a comments block at the top of the file with some standard tags:

#!/bin/bash
#
# eZ Find init script for RHEL and CENTOS.
#
# chkconfig: - 64 36
# description:  SOLR indexing server.
# processname: solr
# pidfile: /var/run/solr.pid

here 64/36 are the priorities for starting/stopping the process (apache is 80/20 iirc)