pgpool.init

   1 #!/bin/sh
   2 #
   3 # pgpool        This is the init script for starting up pgpool
   4 #
   5 # chkconfig:    345 85 15
   6 # description:  Pgpool - a connection pooling/replication server for PostgreSQL
   7 # processname:  pgpool
   8 # pidfile:      /var/run/pgpool.pid
   9 # config:       /etc/pgpool.conf
  10
  11 # Source function library
  12 . /etc/rc.d/init.d/functions
  13
  14 # Get network config
  15 . /etc/sysconfig/network
  16
  17 PGPOOL_BIN=/usr/bin/pgpool
  18
  19 # Get service config
  20 [ -f /etc/sysconfig/pgpool ] && . /etc/sysconfig/pgpool
  21
  22 # Check that networking is up.
  23 if is_yes "${NETWORKING}"; then
  24         if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
  25                 msg_network_down pgpool
  26                 exit 1
  27         fi
  28 else
  29         exit 0
  30 fi
  31
  32 if [ ! -f $PGPOOLLOG ]; then
  33         touch $PGPOOLLOG
  34 fi
  35
  36
  37 start() {
  38         # Check if the service is already running?
  39         if [ ! -f /var/lock/subsys/pgpool ]; then
  40                 msg_starting pgpool
  41                 rm -f $PGPOOLPID > /dev/null 2>&1
  42                 start-stop-daemon -S -x $PGPOOL_BIN -c $PGPOOLUID:$PGPOOLGID \
  43                         -- -f $PGPOOLCONF -a $PGPOOLHBA $OPTS >> $PGPOOLLOG 2>&1
  44                 RETVAL=$?
  45                 pid_num=`pidof -s $PGPOOL_BIN`  # FIXME: this does not restrict the owner
  46                 if [ $pid_num ]; then
  47                         echo "Master PID number $pid_num" >> $PGPOOLLOG
  48                         echo -n $pid_num > $PGPOOLPID
  49                         touch /var/lock/subsys/pgpool
  50                         ok
  51                 else
  52                         RETVAL=1
  53                         fail
  54                 fi
  55                 [ $RETVAL -eq 0 ] && touch /var/lock/subsys/pgpool
  56         else
  57                 msg_already_running pgpool
  58         fi
  59 }
  60
  61
  62 stop() {
  63         # Stop daemons.
  64         if [ -f /var/lock/subsys/pgpool ]; then
  65                 msg_stopping pgpool
  66                 busy
  67                 $PGPOOL_BIN -f $PGPOOLCONF stop >> $PGPOOLLOG 2>&1
  68                 if [ $? -eq 0 ]; then
  69                         rm -f /var/lock/subsys/pgpool /var/run/pgpool.pid >/dev/null 2>&1
  70                         ok
  71                 else
  72                         fail
  73                 fi
  74         else
  75                 msg_not_running pgpool
  76         fi
  77 }
  78
  79 force-stop() {
  80         # Stop daemons (don't wait)
  81         if [ -f /var/lock/subsys/pgpool ]; then
  82                 msg_stopping pgpool
  83                 busy
  84                 $PGPOOL_BIN -m fast stop >> $PGPOOLLOG 2>&1
  85                 if [ $? -eq 0 ]; then
  86                         rm -f /var/lock/subsys/pgpool /var/run/pgpool.pid >/dev/null 2>&1
  87                         ok
  88                 else
  89                         fail
  90                 fi
  91         else
  92                 msg_not_running pgpool
  93         fi
  94 }
  95
  96 RETVAL=0
  97 # See how we were called.
  98 case "$1" in
  99   start)
 100         start
 101         ;;
 102   stop)
 103         stop
 104         ;;
 105   status)
 106         status pgpool
 107         RETVAL=$?
 108         ;;
 109   restart)
 110         stop
 111         start
 112         ;;
 113   switch)
 114         if [ -f /var/lock/subsys/pgpool ]; then
 115                 msg_reloading pgpool
 116                 pgpool switch >> $PGPOOLLOG 2>&1
 117                 RETVAL=$?
 118         else
 119                 msg_not_running pgpool
 120                 RETVAL=7
 121         fi
 122         ;;
 123   force-reload)
 124         force-stop
 125         start
 126         ;;
 127   *)
 128         msg_usage "$0 {start|stop|restart|force-reload|switch|status}"
 129         exit 3
 130         ;;
 131 esac
 132
 133 exit $RETVAL