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d5e0029862
settings to prevent the postmaster from being OOM-killed on Linux systems. Alex Hunsaker and Tom Lane
105 lines
2.9 KiB
Bash
105 lines
2.9 KiB
Bash
#! /bin/sh
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# chkconfig: 2345 98 02
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# description: PostgreSQL RDBMS
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# This is an example of a start/stop script for SysV-style init, such
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# as is used on Linux systems. You should edit some of the variables
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# and maybe the 'echo' commands.
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#
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# Place this file at /etc/init.d/postgresql (or
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# /etc/rc.d/init.d/postgresql) and make symlinks to
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# /etc/rc.d/rc0.d/K02postgresql
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# /etc/rc.d/rc1.d/K02postgresql
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# /etc/rc.d/rc2.d/K02postgresql
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# /etc/rc.d/rc3.d/S98postgresql
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# /etc/rc.d/rc4.d/S98postgresql
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# /etc/rc.d/rc5.d/S98postgresql
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# Or, if you have chkconfig, simply:
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# chkconfig --add postgresql
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#
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# Proper init scripts on Linux systems normally require setting lock
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# and pid files under /var/run as well as reacting to network
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# settings, so you should treat this with care.
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# Original author: Ryan Kirkpatrick <pgsql@rkirkpat.net>
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# $PostgreSQL: pgsql/contrib/start-scripts/linux,v 1.10 2010/01/11 18:39:32 tgl Exp $
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## EDIT FROM HERE
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# Installation prefix
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prefix=/usr/local/pgsql
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# Data directory
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PGDATA="/usr/local/pgsql/data"
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# Who to run the postmaster as, usually "postgres". (NOT "root")
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PGUSER=postgres
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# Where to keep a log file
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PGLOG="$PGDATA/serverlog"
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# It's often a good idea to protect the postmaster from being killed by the
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# OOM killer (which will tend to preferentially kill the postmaster because
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# of the way it accounts for shared memory). Setting the OOM_ADJ value to
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# -17 will disable OOM kill altogether. If you enable this, you probably want
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# to compile PostgreSQL with "-DLINUX_OOM_ADJ=0", so that individual backends
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# can still be killed by the OOM killer.
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#OOM_ADJ=-17
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## STOP EDITING HERE
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# The path that is to be used for the script
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PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
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# What to use to start up the postmaster. (If you want the script to wait
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# until the server has started, you could use "pg_ctl start -w" here.
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# But without -w, pg_ctl adds no value.)
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DAEMON="$prefix/bin/postmaster"
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# What to use to shut down the postmaster
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PGCTL="$prefix/bin/pg_ctl"
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set -e
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# Only start if we can find the postmaster.
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test -x $DAEMON || exit 0
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# Parse command line parameters.
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case $1 in
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start)
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echo -n "Starting PostgreSQL: "
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test x"$OOM_ADJ" != x && echo "$OOM_ADJ" > /proc/self/oom_adj
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su - $PGUSER -c "$DAEMON -D '$PGDATA' &" >>$PGLOG 2>&1
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echo "ok"
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;;
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stop)
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echo -n "Stopping PostgreSQL: "
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su - $PGUSER -c "$PGCTL stop -D '$PGDATA' -s -m fast"
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echo "ok"
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;;
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restart)
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echo -n "Restarting PostgreSQL: "
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su - $PGUSER -c "$PGCTL stop -D '$PGDATA' -s -m fast -w"
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test x"$OOM_ADJ" != x && echo "$OOM_ADJ" > /proc/self/oom_adj
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su - $PGUSER -c "$DAEMON -D '$PGDATA' &" >>$PGLOG 2>&1
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echo "ok"
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;;
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reload)
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echo -n "Reload PostgreSQL: "
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su - $PGUSER -c "$PGCTL reload -D '$PGDATA' -s"
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echo "ok"
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;;
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status)
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su - $PGUSER -c "$PGCTL status -D '$PGDATA'"
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;;
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*)
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# Print help
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echo "Usage: $0 {start|stop|restart|reload|status}" 1>&2
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exit 1
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;;
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esac
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exit 0
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