[packages/percona-server.git] / mysql.init

#!/bin/sh
#
# mysql         A very fast and reliable SQL database engine
#
# chkconfig:    2345 84 25
#
# description:  A very fast and reliable SQL database engine.
#

# Source function library
. /etc/rc.d/init.d/functions

# Get network config
. /etc/sysconfig/network

# Get service config
if [ -f /etc/sysconfig/mysql ]; then
	. /etc/sysconfig/mysql
else
	nls "Error: %s not found" /etc/sysconfig/mysql
	nls " MySQL can't be run."
	exit 1
fi

if [ "$MYSQL_DB_CLUSTERS" ]; then
	nls "Warning: MYSQL_DB_CLUSTERS is set. It's obsolete. Use %s instead." /etc/mysql/clusters.conf
fi

if [ -f /etc/mysql/clusters.conf ]; then
	MYSQL_DB_CLUSTERS=`cat /etc/mysql/clusters.conf | grep -v '^#' | cut -s -f 2 -d '='`
else
	nls "Waning: Missing clusters config file %s" /etc/mysql/clusters.conf
	nls "Using default cluster /var/lib/mysql (compatibility mode)"
	MYSQL_DB_CLUSTERS=/var/lib/mysql
fi

# Check that networking is up
if is_yes "${NETWORKING}"; then
	if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status -a "$1" != init ]; then
		msg_network_down MySQL
		exit 1
	fi
else
	exit 0
fi

action="$1"

# any db cluster as command line argument?
if [ $# -gt 1 ]; then\
	shift
	# perform action for specified clusters only
	DB_CLUSTERS="$@"
else
	DB_CLUSTERS="$MYSQL_DB_CLUSTERS"
fi

MYSQL_ERRLOG=/var/log/mysql/err

#
# Useful functions.
#

#
# check for mysql status
#
# arguments:
# $1 - db cluster
#
# sets variables:
# MYSQL_STATUS = running | not running
# MYSQL_PID    = pid of mysqld process
#
mysqlstatus() {
	clusterdir="$1"
	mysqlgetconfig "$clusterdir"
	
	MYSQL_STATUS="not running"
	MYSQL_PID="unknown"

	[ -f "$MYSQL_PIDFILE" ] && MYSQL_PID=$(cat "$MYSQL_PIDFILE")

	if [ ! -d "/proc/$MYSQL_PID" -a "$MYSQL_PID" != "unknown" ]; then
		MYSQL_STATUS="died"
	elif [ -d "/proc/$MYSQL_PID" ]; then
		grep -q "$MYSQL_PIDFILE" /proc/$MYSQL_PID/cmdline && MYSQL_STATUS="running" || MYSQL_STATUS="not running"
	fi
}

# get mysql configuration in variables
# MYSQL_CONFIG MYSQL_DATA_DIR MYSQL_USER MYSQL_PIDFILE
#
# arguments
# $1 - db cluster

mysqlgetconfig() {
	clusterdir="$1"

	# emulate old behaviour if only one cluster specified
	if [ "$clusterdir" = "$MYSQL_DB_CLUSTERS" -a "$clusterdir" = "/var/lib/mysql" -a -f /etc/mysqld.conf ]; then
		MYSQL_NO_CLUSTER_COMPAT=yes; export MYSQL_NO_CLUSTER_COMPAT
		config_file=/etc/mysqld.conf
	fi
	
	config=`grep -v \"^#\" /etc/mysql/clusters.conf | grep \"$clusterdir$\" | cut -s -f 1 -d '='`
	if [ -f "$config" ]; then
		config_file=$config
	elif [ -f /etc/mysql/$config ]; then
		config_file=/etc/mysql/$config
	elif [ -f "$clusterdir/mysqld.conf" ]; then
		config_file=$clusterdir/mysqld.conf
	fi

	MYSQL_CLUSTER_DIR="$clusterdir"; export MYSQL_CLUSTER_DIR
	MYSQL_CONFIG="$config_file"; export MYSQL_CONFIG
	if [ ! -f "$config_file" ]; then
		nls "Error: config file %s not found" "$config_file"
		nls "MySQL can't be run. Did you initialize DB by doing \`$0 init'?"
		exit 6
	fi

	eval `awk '
/^[ \t]*\[.*\][ \t]*$/ {
	match($0,/\[.*\]/)
	section=substr($0,RSTART+1,RSTART+RLENGTH-3)
}
section=="mysqld" && $2~"=" {
	if ($1=="datadir") {
		printf("MYSQL_DATA_DIR=%s;", $3)
	} else if ($1=="user") {
		printf("MYSQL_USER=%s;", $3)
	} else if ($1=="pid-file") {
		printf("MYSQL_PIDFILE=%s;", $3)
	} else if ($1=="socket") {
		printf("MYSQL_SOCKET=%s;", $3)
	}
}
END {
	print "export MYSQL_DATA_DIR MYSQL_USER MYSQL_PIDFILE MYSQL_SOCKET"
}
' $config_file`


	if is_yes "$MYSQL_NO_CLUSTER_COMPAT"; then
		MYSQL_DATA_DIR_SUB=""
	else
		MYSQL_DATA_DIR_SUB="/mysqldb"
	fi
		
	if [ -z "$MYSQL_DATA_DIR" -o "$MYSQL_DATA_DIR" != "${clusterdir}${MYSQL_DATA_DIR_SUB}/db" ]; then
		nls "Error: datadir specified in %s should be %s" "$config_file" "$clusterdir${MYSQL_DATA_DIR_SUB}/db"
		nls " MySQL can't be run."
		exit 6
	fi
	
	if [ -z "$MYSQL_PIDFILE" -o "$MYSQL_PIDFILE" != "$clusterdir${MYSQL_DATA_DIR_SUB}/mysql.pid" ]; then
		nls "Error: pid-file specified in %s should be %s" "$config_file" "$clusterdir${MYSQL_DATA_DIR_SUB}/mysql.pid"
		nls " MySQL can't be run."
		exit 6
	fi

	if [ -z $MYSQL_USER ]; then
		echo "$(nls 'MySQL user not configured properly')"'!' >&2
		nls "Edit %s and configure it." "$config_file" >&2
		exit 6
	fi
}

# start mysql
mysqlstart() {
	clusterdir="$1"
	mysqlgetconfig "$clusterdir"
	if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
		nls "MySQL cluster %s not initialized." "$clusterdir"
		nls "Try \`%s init %s' before start." "$0" "$clusterdir"
		exit 6
	fi

	msg_starting "MySQL $clusterdir"
	busy
	[ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0
	TMPDIR=/tmp nice -n ${SERVICE_RUN_NICE_LEVEL:-$DEFAULT_SERVICE_RUN_NICE_LEVEL} /usr/bin/setsid /usr/sbin/mysqld --defaults-file=$MYSQL_CONFIG --datadir=$MYSQL_DATA_DIR --pid-file=$MYSQL_PIDFILE >> $MYSQL_ERRLOG 2>&1 &
	sleep 2
	mysqlstatus "$clusterdir"
	if [ "$MYSQL_STATUS" = "running" -a "$MYSQL_PID" != "unknown" ]; then
		ok
	elif [ "$MYSQL_STATUS" = "died" ]; then
		RETVAL=1
		died
	else
		RETVAL=1
		fail
	fi
}

# stop mysql
mysqlstop() {
	clusterdir="$1"
	mysqlstatus "$clusterdir"
	msg_stopping "MySQL $clusterdir"
	busy
	[ "$MYSQL_PID" != "unknown" ] && kill -TERM "$MYSQL_PID" 2> /dev/null
	# 3 seconds
	for nr in 1 2 3; do
		[ -d "/proc/$MYSQL_PID" ] && sleep 1
	done
	mysqlstatus "$clusterdir"
	if [ "$MYSQL_STATUS" = "died" ]; then
		died
	elif [ "$MYSQL_STATUS" = "running" ]; then
		fail
	else
		ok
	fi
	rm -f "$MYSQL_PIDFILE"
}

#
# check for running mysql instances; if any instance is running then
# create subsys lock file
#
mysqlsubsys() {
	# check for every defined db cluster in sysconfig file
	for mysqldir in $DB_CLUSTERS; do
		mysqlstatus "$mysqldir"
		if [ "$MYSQL_STATUS" = "running" ]; then
			touch /var/lock/subsys/mysql
			return
		fi
	done
	rm -f /var/lock/subsys/mysql
}

mysqlinit() {
	clusterdir="$1"

	if [ -f /etc/mysqld.conf ]; then
		nls "Running in \`no cluster compat' mode: can't initialize database."
		nls "Move /etc/mysqld.conf away and rerun \`$0 init' (new config will be in $clusterdir)."
		exit 1
	fi

	#if [ -f "$clusterdir/mysqld.conf" ]; then
	# Let's say that config for each cluster is mandatory...
	mysqlgetconfig "$clusterdir"
	#else
	#	MYSQL_USER="mysql"
	#	MYSQL_CLUSTER_DIR="$clusterdir"
	#	MYSQL_DATA_DIR="$clusterdir/mysqldb/db"
	#	MYSQL_PIDFILE="$clusterdir/mysqldb/mysql.pid"
	#	MYSQL_SOCKET="$clusterdir/mysqldb/mysql.sock"
	#fi

	nls "Initializing cluster %s" "$clusterdir"

	# Check if not exist init database
	if [ -d "$MYSQL_DATA_DIR/mysql" ]; then
		nls "Seems that database is initialized now. Remove by hand %s" "$MYSQL_DATA_DIR/mysqldb/mysql"
		nls "before initializing database."
		nls "For now skipping cluster %s." "$clusterdir"
		return
	fi

	show "Creating privilege mysql tables for $MYSQL_DATA_DIR"
	busy
	TMP=/tmp TMPDIR=/tmp 

		
	# Install this in the user table, too
	hostname="`hostname --fqdn 2> /dev/null | tr -d '[:space:]'`"
	[ -z "$hostname" ] && hostname="localhost-unknown"
		
	# Check if hostname is valid
	if [ -z "$hostname" ]; then
		deltext
		fail
		nls "Sorry, the host name is not configured."
		nls "Please configure the 'hostname' command to return a hostname."
		exit 1
	elif ! hostname -i >/dev/null 2>&1; then 
		deltext
		fail
		nls "Sorry, the host '%s' could not be looked up." "$hostname"
		nls "Please configure the 'hostname' command to return a correct hostname."
		exit 1
	fi

	# Initialize variables
	c_d="" i_d=""
	c_h="" i_h=""
	c_u="" i_u=""
	c_f="" i_f=""
	c_t="" c_c=""

	# Check for old tables
	if test ! -f $MYSQL_DATA_DIR/mysqldb/mysql/db.frm
	then
	  # mysqld --bootstrap wants one command/line
	  c_d="$c_d CREATE TABLE db ("
	  c_d="$c_d   Host char(60) DEFAULT '' NOT NULL,"
	  c_d="$c_d   Db char(64) DEFAULT '' NOT NULL,"
	  c_d="$c_d   User char(16) DEFAULT '' NOT NULL,"
	  c_d="$c_d   Select_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   Insert_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   Update_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   Delete_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   Create_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   Drop_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   Grant_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   References_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   Index_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   Alter_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   Create_tmp_table_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d   Lock_tables_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_d="$c_d PRIMARY KEY Host (Host,Db,User),"
	  c_d="$c_d KEY User (User)"
	  c_d="$c_d )"
	  c_d="$c_d comment='Database privileges';"

	  i_d="INSERT INTO db VALUES ('%','test','','Y','Y','Y','Y','Y','Y','N','Y','Y','Y','Y','Y');
	  INSERT INTO db VALUES ('%','test\_%','','Y','Y','Y','Y','Y','Y','N','Y','Y','Y','Y','Y');"
	    
	fi

	if test ! -f $MYSQL_DATA_DIR/mysqldb/mysql/host.frm
	then
	  c_h="$c_h CREATE TABLE host ("
	  c_h="$c_h  Host char(60) DEFAULT '' NOT NULL,"
	  c_h="$c_h  Db char(64) DEFAULT '' NOT NULL,"
	  c_h="$c_h  Select_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  Insert_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  Update_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  Delete_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  Create_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  Drop_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  Grant_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  References_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  Index_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  Alter_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  Create_tmp_table_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  Lock_tables_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_h="$c_h  PRIMARY KEY Host (Host,Db)"
	  c_h="$c_h )"
	  c_h="$c_h comment='Host privileges;  Merged with database privileges';"
	fi

	if test ! -f $MYSQL_DATA_DIR/mysqldb/mysql/user.frm
	then
	  c_u="$c_u CREATE TABLE user ("
	  c_u="$c_u   Host char(60) DEFAULT '' NOT NULL,"
	  c_u="$c_u   User char(16) DEFAULT '' NOT NULL,"
	  c_u="$c_u   Password char(16) DEFAULT '' NOT NULL,"
	  c_u="$c_u   Select_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Insert_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Update_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Delete_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Create_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Drop_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Reload_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Shutdown_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Process_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   File_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Grant_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   References_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Index_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Alter_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Show_db_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Super_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Create_tmp_table_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Lock_tables_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Execute_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Repl_slave_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   Repl_client_priv enum('N','Y') DEFAULT 'N' NOT NULL,"
	  c_u="$c_u   ssl_type enum('','ANY','X509', 'SPECIFIED') DEFAULT '' NOT NULL,"
	  c_u="$c_u   ssl_cipher BLOB NOT NULL,"
	  c_u="$c_u   x509_issuer BLOB NOT NULL,"
	  c_u="$c_u   x509_subject BLOB NOT NULL,"
	  c_u="$c_u   max_questions int(11) unsigned DEFAULT 0  NOT NULL,"
	  c_u="$c_u   max_updates int(11) unsigned DEFAULT 0  NOT NULL,"
	  c_u="$c_u   max_connections int(11) unsigned DEFAULT 0  NOT NULL,"
	  c_u="$c_u   PRIMARY KEY Host (Host,User)"
	  c_u="$c_u )"
	  c_u="$c_u comment='Users and global privileges';"

	  i_u="INSERT INTO user VALUES ('localhost','mysql','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0);
	  INSERT INTO user VALUES ('$hostname','mysql','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0);

	  REPLACE INTO user VALUES ('localhost','mysql','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0);
	  REPLACE INTO user VALUES ('$hostname','mysql','','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','','','','',0,0,0);

	  INSERT INTO user VALUES ('localhost','mysql_logrotate','','N','N','N','N','N','N','Y','N','N','N','N','N','N','N','N','N','N','N','N','N','N','','','','',0,0,0);"
	fi

	if test ! -f $MYSQL_DATA_DIR/mysqldb/mysql/func.frm
	then
	  c_f="$c_f CREATE TABLE func ("
	  c_f="$c_f   name char(64) DEFAULT '' NOT NULL,"
	  c_f="$c_f   ret tinyint(1) DEFAULT '0' NOT NULL,"
	  c_f="$c_f   dl char(128) DEFAULT '' NOT NULL,"
	  c_f="$c_f   type enum ('function','aggregate') NOT NULL,"
	  c_f="$c_f   PRIMARY KEY (name)"
	  c_f="$c_f )"
	  c_f="$c_f   comment='User defined functions';"
	fi

	if test ! -f $MYSQL_DATA_DIR/mysqldb/mysql/tables_priv.frm
	then
	  c_t="$c_t CREATE TABLE tables_priv ("
	  c_t="$c_t   Host char(60) DEFAULT '' NOT NULL,"
	  c_t="$c_t   Db char(64) DEFAULT '' NOT NULL,"
	  c_t="$c_t   User char(16) DEFAULT '' NOT NULL,"
	  c_t="$c_t   Table_name char(60) DEFAULT '' NOT NULL,"
	  c_t="$c_t   Grantor char(77) DEFAULT '' NOT NULL,"
	  c_t="$c_t   Timestamp timestamp(14),"
	  c_t="$c_t   Table_priv set('Select','Insert','Update','Delete','Create','Drop','Grant','References','Index','Alter') DEFAULT '' NOT NULL,"
	  c_t="$c_t   Column_priv set('Select','Insert','Update','References') DEFAULT '' NOT NULL,"
	  c_t="$c_t   PRIMARY KEY (Host,Db,User,Table_name),"
	  c_t="$c_t   KEY Grantor (Grantor)"
	  c_t="$c_t )"
	  c_t="$c_t   comment='Table privileges';"
	fi

	if test ! -f $MYSQL_DATA_DIR/mysqldb/mysql/columns_priv.frm
	then
	  c_c="$c_c CREATE TABLE columns_priv ("
	  c_c="$c_c   Host char(60) DEFAULT '' NOT NULL,"
	  c_c="$c_c   Db char(60) DEFAULT '' NOT NULL,"
	  c_c="$c_c   User char(16) DEFAULT '' NOT NULL,"
	  c_c="$c_c   Table_name char(60) DEFAULT '' NOT NULL,"
	  c_c="$c_c   Column_name char(60) DEFAULT '' NOT NULL,"
	  c_c="$c_c   Timestamp timestamp(14),"
	  c_c="$c_c   Column_priv set('Select','Insert','Update','References') DEFAULT '' NOT NULL,"
	  c_c="$c_c   PRIMARY KEY (Host,Db,User,Table_name,Column_name)"
	  c_c="$c_c )"
	  c_c="$c_c   comment='Column privileges';"
	fi

	mkdir -p "$MYSQL_DATA_DIR" > /dev/null 2>&1
	chown root:root "$MYSQL_CLUSTER_DIR"
        chown mysql:mysql "$MYSQL_CLUSTER_DIR/mysqldb" "$MYSQL_DATA_DIR" > /dev/null 2>&1
	chmod 751 "$MYSQL_CLUSTER_DIR" "$MYSQL_CLUSTER_DIR/mysqldb"

	if [ -f /usr/share/mysql/mysqld.conf -a ! -f "$MYSQL_CLUSTER_DIR/mysqld.conf" ]; then
	    sed -e "s#datadir.*=.*#datadir	= $MYSQL_DATA_DIR#g" \
		-e "s#pid-file.*=.*#pid-file = $MYSQL_PIDFILE#g" \
		-e "s#socket.*=.*#socket = $MYSQL_SOCKET#g" \
		/usr/share/mysql/mysqld.conf > "$MYSQL_CLUSTER_DIR/mysqld.conf"
	    chown root:root "$MYSQL_CLUSTER_DIR/mysqld.conf"
	    chmod 640 "$MYSQL_CLUSTER_DIR/mysqld.conf"
	fi

	if [ ! -e /var/lib/mysql/mysql.sock ]; then
	    ln -s "$MYSQL_SOCKET" /var/lib/mysql/mysql.sock
	fi

	if /usr/sbin/mysqld --bootstrap --skip-grant-tables \
	    --datadir=$MYSQL_DATA_DIR --user=$MYSQL_USER << END_OF_DATA
CREATE DATABASE mysql;
use mysql;
$c_d
$i_d

$c_h
$i_h

$c_u
$i_u

$c_f
$i_f

$c_t
$c_c
END_OF_DATA
	then 
	    ok
	cat << END_OF_MSG

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL USERS!
This is done (after starting database) with:

/usr/bin/mysqladmin -u mysql -S $MYSQL_SOCKET password 'password'
/usr/bin/mysqladmin -h $hostname -u mysql -S $MYSQL_SOCKET password 'password'
/usr/bin/mysqladmin -u mysql_logrotate -S $MYSQL_SOCKET password 'password'

NOTE: mysql_logrotate password should be placed to $MYSQL_CONFIG in
mysqladmin section. See the manual for more instructions.

IMPORTANT: The configuration file is mysqld.conf in MYSQ_DB_CLUSTERS directories.

END_OF_MSG
      else  
	    fail
	    cat << END_OF_MSG
Installation of grant tables FAILED!

Examine the logs in $MYSQL_DATA_DIR for more information.  You can
also try to start the mysqld demon with:

/usr/sbin/mysqld --skip-grant &

You can use the command line tool /usr/bin/mysql to connect to the mysql
database and look at the grant tables:

shell> /usr/bin/mysql -u mysql mysql
mysql> show tables

Try 'mysqld --help' if you have problems with paths. Setting on
logging in /etc/mysqld.conf gives you a log in /var/log/mysql/log that
may be helpful. The latest information about MySQL is available on the
web at http://www.mysql.com/.

Please check PLD ftp site for newer versions of this package.

Please consult the MySQL manual section: 'Problems running
mysql_install_db', and the manual section that describes problems on
your OS.  Another information source is the MySQL email archive.
Please check all of the above before mailing us!  And if you do mail
us, you MUST use the /usr/bin/mysqlbug script!  

END_OF_MSG

	exit 1
	fi
}

#
# End of useful functions.
#

RETVAL=0
case "$action" in
  start)
	if [ ! -f $MYSQL_ERRLOG ]; then
		touch $MYSQL_ERRLOG
	fi
	chown mysql:mysql $MYSQL_ERRLOG
	chmod 640 $MYSQL_ERRLOG

	for mysqldir in $DB_CLUSTERS; do
		mysqlstatus "$mysqldir"
		if [ "$MYSQL_STATUS" = "running" ]; then
			msg_already_running "MySQL $mysqldir"
		else
			mysqlstart "$mysqldir"
		fi
	done
	mysqlsubsys
	;;
  stop)
	for mysqldir in $DB_CLUSTERS; do
		mysqlstatus "$mysqldir"
		if [ "$MYSQL_STATUS" = "not running" ]; then
			msg_not_running "MySQL $mysqldir"
		else
			mysqlstop "$mysqldir"
		fi
	done
	mysqlsubsys
	;;
  status)
	for mysqldir in $DB_CLUSTERS; do
		mysqlstatus "$mysqldir"
		echo "MySQL cluster $mysqldir: $MYSQL_STATUS"
	done
	exit $?
	;;
  restart|force-reload)
	$0 stop
	$0 start
	exit $?
	;;
  init)
	for mysqldir in $DB_CLUSTERS; do
		mysqlinit "$mysqldir"
	done
	exit $?
	;;
  flush-logs)
  	for mysqldir in $DB_CLUSTERS; do
	    mysqlgetconfig "$mysqldir"
	    /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" flush-logs
	done
	;;
  *)
	msg_usage "$0 {start|stop|init|restart|force-reload|status}"
	exit 3
esac

exit $RETVAL

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