contrib/start-scripts/linux

   1 #! /bin/sh
   2
   3 # chkconfig: 2345 98 02
   4 # description: PostgreSQL RDBMS
   5
   6 # This is an example of a start/stop script for SysV-style init, such
   7 # as is used on Linux systems.  You should edit some of the variables
   8 # and maybe the 'echo' commands.
   9 #
  10 # Place this file at /etc/init.d/postgresql (or
  11 # /etc/rc.d/init.d/postgresql) and make symlinks to
  12 #   /etc/rc.d/rc0.d/K02postgresql
  13 #   /etc/rc.d/rc1.d/K02postgresql
  14 #   /etc/rc.d/rc2.d/K02postgresql
  15 #   /etc/rc.d/rc3.d/S98postgresql
  16 #   /etc/rc.d/rc4.d/S98postgresql
  17 #   /etc/rc.d/rc5.d/S98postgresql
  18 # Or, if you have chkconfig, simply:
  19 # chkconfig --add postgresql
  20 #
  21 # Proper init scripts on Linux systems normally require setting lock
  22 # and pid files under /var/run as well as reacting to network
  23 # settings, so you should treat this with care.
  24
  25 # Original author:  Ryan Kirkpatrick <pgsql@rkirkpat.net>
  26
  27 # contrib/start-scripts/linux
  28
  29 ## EDIT FROM HERE
  30
  31 # Installation prefix
  32 prefix=/usr/local/pgsql
  33
  34 # Data directory
  35 PGDATA="/usr/local/pgsql/data"
  36
  37 # Who to run postgres as, usually "postgres".  (NOT "root")
  38 PGUSER=postgres
  39
  40 # Where to keep a log file
  41 PGLOG="$PGDATA/serverlog"
  42
  43 # It's often a good idea to protect the postmaster from being killed by the
  44 # OOM killer (which will tend to preferentially kill the postmaster because
  45 # of the way it accounts for shared memory).  To do that, uncomment these
  46 # three lines:
  47 #PG_OOM_ADJUST_FILE=/proc/self/oom_score_adj
  48 #PG_MASTER_OOM_SCORE_ADJ=-1000
  49 #PG_CHILD_OOM_SCORE_ADJ=0
  50 # Older Linux kernels may not have /proc/self/oom_score_adj, but instead
  51 # /proc/self/oom_adj, which works similarly except for having a different
  52 # range of scores.  For such a system, uncomment these three lines instead:
  53 #PG_OOM_ADJUST_FILE=/proc/self/oom_adj
  54 #PG_MASTER_OOM_SCORE_ADJ=-17
  55 #PG_CHILD_OOM_SCORE_ADJ=0
  56
  57 ## STOP EDITING HERE
  58
  59 # The path that is to be used for the script
  60 PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
  61
  62 # What to use to start up postgres.  (If you want the script to wait
  63 # until the server has started, you could use "pg_ctl start" here.)
  64 DAEMON="$prefix/bin/postgres"
  65
  66 # What to use to shut down postgres
  67 PGCTL="$prefix/bin/pg_ctl"
  68
  69 set -e
  70
  71 # Only start if we can find postgres.
  72 test -x $DAEMON ||
  73 {
  74         echo "$DAEMON not found"
  75         if [ "$1" = "stop" ]
  76         then exit 0
  77         else exit 5
  78         fi
  79 }
  80
  81 # If we want to tell child processes to adjust their OOM scores, set up the
  82 # necessary environment variables.  Can't just export them through the "su".
  83 if [ -e "$PG_OOM_ADJUST_FILE" -a -n "$PG_CHILD_OOM_SCORE_ADJ" ]
  84 then
  85         DAEMON_ENV="PG_OOM_ADJUST_FILE=$PG_OOM_ADJUST_FILE PG_OOM_ADJUST_VALUE=$PG_CHILD_OOM_SCORE_ADJ"
  86 fi
  87
  88
  89 # Parse command line parameters.
  90 case $1 in
  91   start)
  92         echo -n "Starting PostgreSQL: "
  93         test -e "$PG_OOM_ADJUST_FILE" && echo "$PG_MASTER_OOM_SCORE_ADJ" > "$PG_OOM_ADJUST_FILE"
  94         su - $PGUSER -c "$DAEMON_ENV $DAEMON -D '$PGDATA' >>$PGLOG 2>&1 &"
  95         echo "ok"
  96         ;;
  97   stop)
  98         echo -n "Stopping PostgreSQL: "
  99         su - $PGUSER -c "$PGCTL stop -D '$PGDATA' -s"
 100         echo "ok"
 101         ;;
 102   restart)
 103         echo -n "Restarting PostgreSQL: "
 104         su - $PGUSER -c "$PGCTL stop -D '$PGDATA' -s"
 105         test -e "$PG_OOM_ADJUST_FILE" && echo "$PG_MASTER_OOM_SCORE_ADJ" > "$PG_OOM_ADJUST_FILE"
 106         su - $PGUSER -c "$DAEMON_ENV $DAEMON -D '$PGDATA' >>$PGLOG 2>&1 &"
 107         echo "ok"
 108         ;;
 109   reload)
 110         echo -n "Reload PostgreSQL: "
 111         su - $PGUSER -c "$PGCTL reload -D '$PGDATA' -s"
 112         echo "ok"
 113         ;;
 114   status)
 115         su - $PGUSER -c "$PGCTL status -D '$PGDATA'"
 116         ;;
 117   *)
 118         # Print help
 119         echo "Usage: $0 {start|stop|restart|reload|status}" 1>&2
 120         exit 1
 121         ;;
 122 esac
 123
 124 exit 0