- 论坛徽章:
- 0
|
#!/bin/sh
# Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB
# This file is public domain and comes with NO WARRANTY of any kind
# MySQL daemon start/stop script.
# Usually this is put in /etc/init.d (at least on machines SYSV R4 based
# systems) and linked to /etc/rc3.d/S99mysql and /etc/rc0.d/K01mysql.
# When this is done the mysql server will be started when the machine is
# started and shut down when the systems goes down.
# Comments to support chkconfig on RedHat Linux
# chkconfig: 2345 64 36
# description: A very fast and reliable SQL database engine.
# Comments to support LSB init script conventions
### BEGIN INIT INFO
# Provides: mysql
# Required-Start: $local_fs $network $remote_fs
# Should-Start: ypbind nscd ldap ntpd xntpd
# Required-Stop: $local_fs $network $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: start and stop MySQL
# Description: MySQL is a very fast and reliable SQL database engine.
### END INIT INFO
# If you install MySQL on some other places than /usr/local/mysql, then you
# have to do one of the following things for this script to work:
#
# - Run this script from within the MySQL installation directory
# - Create a /etc/my.cnf file with the following information:
# [mysqld]
# basedir=<path-to-mysql-installation-directory>
# - Add the above to any other configuration file (for example ~/.my.ini)
# and copy my_print_defaults to /usr/bin
# - Add the path to the mysql-installation-directory to the basedir variable
# below.
#
# If you want to affect other MySQL variables, you should make your changes
# in the /etc/my.cnf, ~/.my.cnf or other MySQL configuration files.
# If you change base dir, you must also change datadir. These may get
# overwritten by settings in the MySQL configuration files.
basedir=
datadir=
# Default value, in seconds, afterwhich the script should timeout waiting
# for server start.
# Value here is overriden by value in my.cnf.
# 0 means don't wait at all
# Negative numbers mean to wait indefinitely
service_startup_timeout=900
# The following variables are only set for letting mysql.server find things.
# Set some defaults
pid_file=
server_pid_file=
use_mysqld_safe=1
user=mysql
if test -z "$basedir"
then
basedir=/usr/local/mysql
bindir=/usr/local/mysql/bin
if test -z "$datadir"
then
datadir=/usr/local/mysql/var
fi
sbindir=/usr/local/mysql/sbin
libexecdir=/usr/local/mysql/libexec
else
bindir="$basedir/bin"
if test -z "$datadir"
then
datadir="$basedir/data"
fi
sbindir="$basedir/sbin"
libexecdir="$basedir/libexec"
fi
# datadir_set is used to determine if datadir was set (and so should be
# *not* set inside of the --basedir= handler.)
datadir_set=
#
# Use LSB init script functions for printing messages, if possible
#
lsb_functions="/lib/lsb/init-functions"
if test -f $lsb_functions ; then
. $lsb_functions
else
log_success_msg()
{
echo " SUCCESS! $@"
}
log_failure_msg()
{
echo " ERROR! $@"
}
fi
PATH=/sbin:/usr/sbin:/bin:/usr/bin basedir/bin
export PATH
mode=$1 # start or stop
shift
other_args="$*" # uncommon, but needed when called from an RPM upgrade action
# Expected: "--skip-networking --skip-grant-tables"
# They are not checked here, intentionally, as it is the resposibility
# of the "spec" file author to give correct arguments only.
case `echo "testing\c"`,`echo -n testing` in
*c*,-n*) echo_n= echo_c= ;;
*c*,*) echo_n=-n echo_c= ;;
*) echo_n= echo_c='\c' ;;
esac
parse_server_arguments() {
for arg do
case "$arg" in
--basedir=*) basedir=`echo "$arg" | sed -e 's/^[^=]*=//'`
bindir="$basedir/bin"
if test -z "$datadir_set"; then
datadir="$basedir/data"
fi
sbindir="$basedir/sbin"
libexecdir="$basedir/libexec"
;;
--datadir=*) datadir=`echo "$arg" | sed -e 's/^[^=]*=//'`
datadir_set=1
;;
--user=*) user=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
--pid-file=*) server_pid_file=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
--service-startup-timeout=*) service_startup_timeout=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
--use-mysqld_safe) use_mysqld_safe=1;;
--use-manager) use_mysqld_safe=0;;
esac
done
}
parse_manager_arguments() {
for arg do
case "$arg" in
--pid-file=*) pid_file=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
--user=*) user=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
esac
done
}
wait_for_pid () {
i=0
while test $i -ne $service_startup_timeout ; do
sleep 1
case "$1" in
'created')
test -s $pid_file && i='' && break
kill -0 $2 || break # if the program goes away, stop waiting
;;
'removed')
test ! -s $pid_file && i='' && break
;;
*)
echo "wait_for_pid () usage: wait_for_pid created|removed"
exit 1
;;
esac
echo $echo_n ".$echo_c"
i=`expr $i + 1`
done
if test -z "$i" ; then
log_success_msg
return 0
else
log_failure_msg
return 1
fi
}
# Get arguments from the my.cnf file,
# the only group, which is read from now on is [mysqld]
if test -x ./bin/my_print_defaults
then
print_defaults="./bin/my_print_defaults"
elif test -x $bindir/my_print_defaults
then
print_defaults="$bindir/my_print_defaults"
elif test -x $bindir/mysql_print_defaults
then
print_defaults="$bindir/mysql_print_defaults"
else
# Try to find basedir in /etc/my.cnf
conf=/etc/my.cnf
print_defaults=
if test -r $conf
then
subpat='^[^=]*basedir[^=]*=\(.*\)$'
dirs=`sed -e "/$subpat/!d" -e 's//\1/' $conf`
for d in $dirs
do
d=`echo $d | sed -e 's/[ ]//g'`
if test -x "$d/bin/my_print_defaults"
then
print_defaults="$d/bin/my_print_defaults"
break
fi
if test -x "$d/bin/mysql_print_defaults"
then
print_defaults="$d/bin/mysql_print_defaults"
break
fi
done
fi
# Hope it's in the PATH ... but I doubt it
test -z "$print_defaults" && print_defaults="my_print_defaults"
fi
#
# Read defaults file from 'basedir'. If there is no defaults file there
# check if it's in the old (depricated) place (datadir) and read it from there
#
extra_args=""
if test -r "$basedir/my.cnf"
then
extra_args="-e $basedir/my.cnf"
else
if test -r "$datadir/my.cnf"
then
extra_args="-e $datadir/my.cnf"
fi
fi
parse_server_arguments `$print_defaults $extra_args mysqld server mysql_server mysql.server`
# Look for the pidfile
parse_manager_arguments `$print_defaults $extra_args manager`
#
# Set pid file if not given
#
if test -z "$pid_file"
then
pid_file=$datadir/mysqlmanager-`/bin/hostname`.pid
else
case "$pid_file" in
/* ) ;;
* ) pid_file="$datadir/$pid_file" ;;
esac
fi
if test -z "$server_pid_file"
then
server_pid_file=$datadir/`/bin/hostname`.pid
else
case "$server_pid_file" in
/* ) ;;
* ) server_pid_file="$datadir/$server_pid_file" ;;
esac
fi
case "$mode" in
'start')
# Start daemon
# Safeguard (relative paths, core dumps..)
cd $basedir
manager=$bindir/mysqlmanager
if test -x $libexecdir/mysqlmanager
then
manager=$libexecdir/mysqlmanager
elif test -x $sbindir/mysqlmanager
then
manager=$sbindir/mysqlmanager
fi
echo $echo_n "Starting MySQL"
if test -x $manager -a "$use_mysqld_safe" = "0"
then
if test -n "$other_args"
then
log_failure_msg "MySQL manager does not support options '$other_args'"
exit 1
fi
# Give extra arguments to mysqld with the my.cnf file. This script may
# be overwritten at next upgrade.
$manager --user=$user --pid-file=$pid_file >/dev/null 2>&1 &
wait_for_pid created $!; return_value=$?
# Make lock for RedHat / SuSE
if test -w /var/lock/subsys
then
touch /var/lock/subsys/mysqlmanager
fi
exit $return_value
elif test -x $bindir/mysqld_safe
then
# Give extra arguments to mysqld with the my.cnf file. This script
# may be overwritten at next upgrade.
pid_file=$server_pid_file
$bindir/mysqld_safe --datadir=$datadir --pid-file=$server_pid_file $other_args >/dev/null 2>&1 &
wait_for_pid created $!; return_value=$?
# Make lock for RedHat / SuSE
if test -w /var/lock/subsys
then
touch /var/lock/subsys/mysql
fi
exit $return_value
else
log_failure_msg "Couldn't find MySQL manager or server"
fi
;;
'stop')
# Stop daemon. We use a signal here to avoid having to know the
# root password.
# The RedHat / SuSE lock directory to remove
lock_dir=/var/lock/subsys/mysqlmanager
# If the manager pid_file doesn't exist, try the server's
if test ! -s "$pid_file"
then
pid_file=$server_pid_file
lock_dir=/var/lock/subsys/mysql
fi
if test -s "$pid_file"
then
mysqlmanager_pid=`cat $pid_file`
echo $echo_n "Shutting down MySQL"
kill $mysqlmanager_pid
# mysqlmanager should remove the pid_file when it exits, so wait for it.
wait_for_pid removed; return_value=$?
# delete lock for RedHat / SuSE
if test -f $lock_dir
then
rm -f $lock_dir
fi
exit $return_value
else
log_failure_msg "MySQL manager or server PID file could not be found!"
fi
;;
'restart')
# Stop the service and regardless of whether it was
# running or not, start it again.
if $0 stop $other_args; then
$0 start $other_args
else
log_failure_msg "Failed to stop running server, so refusing to try to start."
exit 1
fi
;;
'reload'|'force-reload')
if test -s "$server_pid_file" ; then
read mysqld_pid < $server_pid_file
kill -HUP $mysqld_pid && log_success_msg "Reloading service MySQL"
touch $server_pid_file
else
log_failure_msg "MySQL PID file could not be found!"
exit 1
fi
;;
'status')
# First, check to see if pid file exists
if test -s "$server_pid_file" ; then
read mysqld_pid < $server_pid_file
if kill -0 $mysqld_pid 2>/dev/null ; then
log_success_msg "MySQL running ($mysqld_pid)"
exit 0
else
log_failure_msg "MySQL is not running, but PID file exists"
exit 1
fi
else
# Try to find appropriate mysqld process
mysqld_pid=`pidof $sbindir/mysqld`
if test -z $mysqld_pid ; then
if test "$use_mysqld_safe" = "0" ; then
lockfile=/var/lock/subsys/mysqlmanager
else
lockfile=/var/lock/subsys/mysql
fi
if test -f $lockfile ; then
log_failure_msg "MySQL is not running, but lock exists"
exit 2
fi
log_failure_msg "MySQL is not running"
exit 3
else
log_failure_msg "MySQL is running but PID file could not be found"
exit 4
fi
fi
;;
*)
# usage
echo "Usage: $0 {start|stop|restart|reload|force-reload|status} [ MySQL server options ]"
exit 1
;;
esac
exit 0 |
|
免费注册
发表于 2007-08-08 14:33
发表于 2007-08-09 20:59
