pe "help" for help.
iihero=# \q
2. Linux下的服务自启动
在Linux下，我们需要写一个自启动的脚本，至少支持两个命令选项： start 和 stop，并将这个脚本建立适当的链接。我们就以Ubuntu10为例，
先看看系统有没有chkconfig命令工具： www.2cto.com
xionghe@seanlinux2:~$ chkconfig
程序“chkconfig”尚未安装。 您可以使用以下命令安装：
sudo apt-get install chkconfig
xionghe@seanlinux2:~$ sudo apt-get install chkconfig
脚本内容如下： 放入目录/etc/init.d目录下边
#! /bin/sh
# Installation prefix
prefix=/home/xionghe/pgsql
# Data directory
PGDATA="/home/xionghe/pgsql/data"
# Who to run the postmaster as, usually "postgres". (NOT "root")
PGUSER=xionghe
# Where to keep a log file
PGLOG="$PGDATA/serverlog"
# It's often a good idea to protect the postmaster from being killed by the
# OOM killer (which will tend to preferentially kill the postmaster because
# of the way it accounts for shared memory). Setting the OOM_ADJ value to
# -17 will disable OOM kill altogether. If you enable this, you probably want
# to compile PostgreSQL with "-DLINUX_OOM_ADJ=0", so that individual backends
# can still be killed by the OOM killer.
#OOM_ADJ=-17
## STOP EDITING HERE
# The path that is to be used for the script
PATH=/home/xionghe/pgsql/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
# What to use to start up the postmaster. (If you want the script to wait
# until the server has started, you could use "pg_ctl start -w" here.
# But without -w, pg_ctl adds no value.)
DAEMON="$prefix/bin/postmaster"
# What to use to shut down the postmaster
PGCTL="$prefix/bin/pg_ctl"
set -e
# Only start if we can find the postmaster.
test -x $DAEMON ||
{
echo "$DAEMON not found"
if [ "$1" = "stop" ]
then exit 0
else exit 5
fi
}
# Parse command line parameters.
case $1 in
start)
echo -n "Starting PostgreSQL: "
test x"$OOM_ADJ" != x && echo "$OOM_ADJ" > /proc/self/oom_adj
su - $PGUSER -c "$DAEMON -D '$PGDATA' &" >>$PGLOG 2>&1
echo "ok"
;;
stop)
echo -n "Stopping PostgreSQL: "
su - $PGUSER -c "$PGCTL stop -D '$PGDATA' -s -m fast"
echo "ok"
;;
restart)
echo -n "Restarting PostgreSQL: "
su - $PGUSER -c "$PGCTL stop -D '$PGDATA' -s -m fast -w"
test x"$OOM_ADJ" != x && echo "$OOM_ADJ" > /proc/self/oom_adj
su - $PGUSER -c "$DAEMON -D '$PGDATA' &" >>$PGLOG 2>&1
echo "ok"
;;
reload)
echo -n "Reload PostgreSQL: "
su - $PGUSER -c "$PGCTL reload -D '$PGDATA' -s"
echo "ok"
;;
status)
su - $PGUSER -c "$PGCTL status -D '$PGDATA'"
;;
*)
# Print help
echo "Usage: $0 {start|stop|restart|reload|status}" 1>&2
exit 1
;;
esac
exit 0
建立相应链接：
root@seanlinux2:/et
c# ln -s /etc/init.d/postgresql /etc/rc0.d/K02postgresql
root@seanlinux2:/etc# ln -s /etc/init.d/postgresql /etc/rc1.d/K02postgresql
root@seanlinux2:/etc# ln -s /etc/init.d/postgresql /etc/rc2.d/K02postgresql
root@seanlinux2:/etc# ln -s /etc/init.d/postgresql /etc/rc3.d/K98postgresql
root@seanlinux2:/etc# ln -s /etc/init.d/postgresql /etc/rc4.d/K98postgresql
root@seanlinux2:/etc# ln -s /etc/init.d/postgresql /etc/rc5.d/K98postgresql