/etc/init.d/memcached - Memcached multi-bin init.d script for CentOS 6

memcached.sh

#! /bin/sh
#
# chkconfig: - 55 45
# description:  The memcached-multi daemon is a network memory cache service.
# processname: memcached-multi
# config: /etc/sysconfig/memcached
# pidfile: /var/run/memcached/memcached.*.pid


# Standard LSB functions
#. /lib/lsb/init-functions

# Source function library.
. /etc/init.d/functions

PORT=11211
UDP=0
SOCKET=/tmp/memcached.socket
VAR=0
USER=memcached
MAXCONN=300
CACHESIZE=64
OPTIONS=""

if [ -f /etc/sysconfig/memcached ];then
    . /etc/sysconfig/memcached
fi

# Check that networking is up.
. /etc/sysconfig/network

if [ "$NETWORKING" = "no" ]
then
    exit 0
fi

RETVAL=0
prog="memcached"

start_instance() {
    echo -n $"Starting $prog ($1): "
    daemon --pidfile /var/run/memcached/memcached.$1.pid memcached -d -p $2 -u $USER -m $3 -c $MAXCONN -P /var/run/memcached/memcached.$1.pid $OPTIONS
    RETVAL=$?
    echo
    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/memcached.$1
}

stop_instance() {
    echo -n $"Stopping $prog ($1): "
    killproc -p /var/run/memcached/memcached.$1.pid /usr/bin/memcached
    RETVAL=$?
    echo
    if [ $RETVAL -eq 0 ] ; then
        rm -f /var/lock/subsys/memcached.$1
        rm -f /var/run/memcached.$1.pid
    fi
}

start() {
    # insure that /var/run/memcached has proper permissions
    if [ "`stat -c %U /var/run/memcached`" != "$USER" ]; then
        chown $USER /var/run/memcached
    fi
    
    start_instance default $PORT $CACHESIZE;
    start_instance example.com 11212 $CACHESIZE;    
    
}

stop () {
    pids=($(cd /var/run/memcached && /bin/ls *))

    for pid in "${pids[@]}"
    do
        name=$(echo "$pid" | sed -e "s/memcached.//" | sed -e "s/.pid//")
        stop_instance "$name";
    done
}

restart () {
    stop
    start
}


# See how we were called.
case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  status)
    status memcached
    ;;
  restart|reload|force-reload)
    restart
    ;;
  *)
    echo $"Usage: $0 {start|stop|status|restart|reload|force-reload}"
    exit 1
esac

exit $?

Stop() looks through pids to remove renamed or removed bins. This will also clean up bins left after a crash or kill all. Good for dynamic deployments such as puppet when using templates.