File rc.mysql of Package mysql-5.5.13

#!/bin/sh
# Copyright (c) 1995-2002 SuSE Linux AG Nuernberg, Germany.
#
# Author: Lenz Grimmer <feedback@suse.de>
#
# /etc/init.d/mysql
#
#   and its symbolic link
#
# /usr/sbin/rcmysql
#
### BEGIN INIT INFO
# Provides:       mysql
# Required-Start: $network $remote_fs
# Required-Stop:  $null
# Default-Start:  2 3 5
# Default-Stop:
# Description:    Start the MySQL database server
### END INIT INFO

# Shell functions sourced from /etc/rc.status:
#      rc_check         check and set local and overall rc status
#      rc_status        check and set local and overall rc status
#      rc_status -v     ditto but be verbose in local rc status
#      rc_status -v -r  ditto and clear the local rc status
#      rc_failed        set local and overall rc status to failed
#      rc_failed <num>  set local and overall rc status to <num>
#      rc_reset         clear local rc status (overall remains)
#      rc_exit          exit appropriate to overall rc status
. /etc/rc.status

# First reset status of this service
rc_reset

# Return values acc. to LSB for all commands but status:
# 0 - success
# 1 - generic or unspecified error
# 2 - invalid or excess argument(s)
# 3 - unimplemented feature (e.g. "reload")
# 4 - insufficient privilege
# 5 - program is not installed
# 6 - program is not configured
# 7 - program is not running
# 
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signalling is not supported) are
# considered a success.

# Test, if mysqld or mysql-max actually exist
unset MYSQLD
if test -x /usr/sbin/mysqld-max
then
        MYSQLD=/usr/sbin/mysqld-max
elif test -x /usr/sbin/mysqld
then
        MYSQLD=/usr/sbin/mysqld
fi
test "$MYSQLD" || { echo "Nor /usr/sbin/mysqld nor /usr/sbin/mysqld-max exists"; rc_failed 5; rc_status -v; rc_exit; }

# The following section has been taken from
# the original MySQL init script
# Note: If you want to change these variables, you'll make your life easier
# if you do so in /etc/my.cnf, which is preserved during upgrades
basedir=/usr
datadir=/var/lib/mysql
mysql_daemon_user=mysql
mysql_daemon_group=mysql
pid_file=/var/lib/mysql/mysqld.pid
socket=/var/lib/mysql/mysql.sock
MYADMIN=/usr/bin/mysqladmin
if test -z "$basedir"
then
  basedir=/usr
  bindir=/usr/bin
else
  bindir="$basedir/bin"
fi

if test -z "$pid_file"
then
  pid_file=$datadir/`/bin/hostname`.pid
else
  case "$pid_file" in
    /* ) ;;
    * )  pid_file="$datadir/$pid_file" ;;
  esac
fi

mode=$1 # start or stop

parse_arguments() {
  for arg do
    case "$arg" in
      --basedir=*)  basedir=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
      --datadir=*)  datadir=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
      --pid-file=*) pid_file=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
	  --socket=*)   socket=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
    esac
  done
}

# Don't run killproc -TERM, as it could send a SIGKILL as well, possibly
# resulting in database corruption. Run kill -TERM manually instead,  wait
# approximately 300 seconds and fail if mysql doesn't respond. This will at
# least prevent the SIGKILL when doing 'rcmysql stop' manually. During system
# shutdown, we are out of luck...
# See https://bugzilla.novell.com/show_bug.cgi?id=223209
kill_mysql ()
{
	local pid exe
	test -e "$pid_file" || return 7  # not running
	pid=`cat "$pid_file"` || return 4  # insufficient privileges
	if ! test -e /proc/version; then
		mount -n -t proc proc /proc
		test -e /proc/version || return 100
	fi
	test -L "/proc/$pid/exe" || return 7
	exe=`readlink "/proc/$pid/exe"` || return 4
	test "$exe" = "$MYSQLD" || return 7
	kill -STOP "$pid"
	kill -TERM "$pid" || return 4 # suboptimal
	kill -CONT "$pid"
	for i in `seq 3000`; do
		# mysqld removes its pid file
		test -e "$pid_file" || return 0
		LC_ALL=C sleep 0.1
	done
	test -e "$pid_file" || return 0
	return 1
}

# Get arguments from the my.cnf file, groups [mysqld] and [mysql_server]
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

parse_arguments `$print_defaults $defaults mysqld mysql_server`
export TMPDIR=$datadir/.tmp
if ! test -d "$TMPDIR"; then
	mkdir "$TMPDIR"
	chown mysql:mysql "$TMPDIR"
	chmod 755 "$TMPDIR"
fi

# Safeguard (relative paths, core dumps..)
cd $basedir

case "$1" in
    start)
	# exit gracefully, if we are already running
	$0 status >/dev/null && echo -n "Starting service MySQL " && \
	rc_status -v && rc_exit

# Test, if safe_mysqld actually exists
	SAFE_MYSQLD=/usr/bin/mysqld_safe
	test -x $SAFE_MYSQLD || { echo "$SAFE_MYSQLD does not exist "; rc_failed 5; rc_status -v; rc_exit; }

# check for ISAM tables
    tables=`find $datadir -name '*.ISM' | sed "s@$datadir/*@@; s@.ISM@@; s@/@.@;"`
    if test -n "$tables" ; then
        echo
        echo "Some tables still use ISAM format, which is NO LONGER SUPPORTED"
        echo "since mysql 5.0. To use these tables, you would need to open them"
        echo "from an older mysql server and convert to something better (eg. MyISAM)."
        echo
        echo "Tables using ISAM are: "
        echo "  $tables "
        echo
    fi
    # check for bdb tables
    tables=`find $datadir -name '*.db' | sed "s@$datadir/*@@; s@.db@@; s@/@.@;"`
    if test -n "$tables" ; then
        echo
        echo "Some tables still use BerkeleyDB format, please convert them to something "
	echo "else. BerkeleyDB support will be dropped in future releases. "
        echo "You can use mysql_convert_table_format script to do this conversion. "
        echo
        echo "Tables using BerkeleyDB are: "
        echo "  $tables "
        echo
    fi

# this file was used in past, but it's batter to place it youtside database directory
    if test -f $datadir/mysql/stamp-4.1 ; then
        rm $datadir/mysql/stamp-4.1
    fi

# We assume a fresh install if the directory $datadir/mysql
	# does not exist and create the privilege database
	if ! ls $datadir/update-stamp-* >/dev/null 2>&1 ; then
		echo "Creating/Updating MySQL privilege database... "
		mysql_install_db --user=$mysql_daemon_user --datadir=$datadir || rc_failed
	fi
	if test ! -f $datadir/update-stamp-5.0 ; then
		echo "Updating MySQL privilege database... "

echo "Fixing privilege tables... "
        (echo 'USE mysql;'; cat /usr/share/mysql/mysql_fix_privilege_tables.sql) \
		| sed '/^---\? /D; s/#.*//; s/;$/#/' | tr '\n' ' ' | tr '#' '\n' \
		| /usr/sbin/mysqld \
            --bootstrap \
            --skip-innodb \
            --skip-bdb \
            --skip-grant-tables \
            --user=$mysql_daemon_user \
            --pid-file=$pid_file \
            --socket=$socket \
            --datadir=$datadir 2>/dev/null

rm -f $datadir/update-stamp-4.1
	touch $datadir/update-stamp-5.0
		
		# Fix ownerships and permissions for $datadir
		chmod 755 $datadir
		chown -R $mysql_daemon_user.$mysql_daemon_group $datadir
	fi

echo -n "Starting service MySQL "

$SAFE_MYSQLD \
	    --user=$mysql_daemon_user \
	    --pid-file=$pid_file \
	    --socket=$socket \
	    --datadir=$datadir &>/dev/null &

for((i=0; i<50; i++)); do
	   sleep 0.2
           test -S $socket && i='' && break
        done

test -z "$i" || rc_failed

# Rmember status and be verbose
	rc_status -v
	;;

stop)
	echo -n "Shutting down service MySQL "
	kill_mysql

# Remember status and be verbose
	rc_status -v
	;;

try-restart)
	## Stop the service and if this succeeds (i.e. the 
	## service was running before), start it again.
	## Note: try-restart is not (yet) part of LSB (as of 0.7.5)
	$0 status >/dev/null &&  $0 restart

# Remember status and be quiet
	rc_status
	;;

restart|force-reload)
	echo "Restarting service MySQL "
	$0 stop
	$0 start

rc_status
	;;

reload)
	echo -n "Reloading service MySQL "
	killproc -p $pid_file -HUP $MYSQLD
	touch $pid_file
	rc_status -v
	;;
	
    check|status)
	echo -n "Checking for service MySQL: "
	# NOTE: not using checkproc, because it wrongly returns success when
	# the pid file does not exist (fixed in 10.3 and newer)
	if ! [ -f $pid_file ]; then
		# not running
		rc_failed 3
	elif [ -s $pid_file -a -d /proc/$(<$pid_file) ]; then
		# running
		:
	else
		# stale pid file
		rc_failed 1
		#rm -f $pid_file
	fi
	rc_status -v
	;;

*)
	echo "Usage: $0 {start|stop|status|reload|restart|try-restart|force-reload}"
	exit 1
	;;
esac
rc_exit

# vim: ft=sh