mysql.init

   1 #!/bin/sh
   2 #
   3 # mysql         A very fast and reliable SQL database engine
   4 #
   5 # chkconfig:    2345 84 25
   6 #
   7 # description:  A very fast and reliable SQL database engine.
   8 #
   9 # $Id$
  10
  11 # Source function library
  12 . /etc/rc.d/init.d/functions
  13
  14 # Get network config
  15 . /etc/sysconfig/network
  16
  17 # Get service config
  18 if [ -f /etc/sysconfig/mysql ]; then
  19         . /etc/sysconfig/mysql
  20 else
  21         nls "Error: %s not found" /etc/sysconfig/mysql
  22         nls "%s can't be run." MySQL
  23         exit 1
  24 fi
  25
  26 if [ -n "$MYSQL_DB_CLUSTERS" ]; then
  27         nls "Warning: MYSQL_DB_CLUSTERS is set. It's obsolete. Use %s instead." /etc/mysql/clusters.conf
  28 fi
  29
  30 if [ -f /etc/mysql/clusters.conf ]; then
  31         MYSQL_DB_CLUSTERS=$(awk -F= '!/^#/{print $2}' /etc/mysql/clusters.conf)
  32         if [ -z "$MYSQL_DB_CLUSTERS"  ]; then
  33                 nls "Warning: there are no configured clusters."
  34         fi
  35
  36 else
  37         nls "Warning: Missing clusters config file %s" /etc/mysql/clusters.conf
  38         if [ -z "$MYSQL_DB_CLUSTERS"  ]; then
  39                 nls "Warning: there are no configured clusters."
  40                 nls "Using default cluster /var/lib/mysql (compatibility mode)"
  41                 MYSQL_DB_CLUSTERS=/var/lib/mysql
  42         fi
  43 fi
  44
  45
  46 # Check that networking is up
  47 if is_yes "${NETWORKING}"; then
  48         if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status -a "$1" != init ]; then
  49                 msg_network_down MySQL
  50                 exit 1
  51         fi
  52 else
  53         exit 0
  54 fi
  55
  56 action="$1"
  57
  58 # any db cluster as command line argument?
  59 if [ $# -gt 1 ]; then
  60         shift
  61         # perform action for specified clusters only
  62         for a in "$@"; do
  63                 # try auto resolving from /etc/mysql/clusters.conf
  64                 if [[ "$a" != /* ]]; then
  65                         m=$(awk -va="$a" -F= 'substr($0, 1, length(a)) == a {print $1}' /etc/mysql/clusters.conf)
  66                         if [ -z "$m" ]; then
  67                                 echo >&2 "Cluster name '$a' did not match anything!"
  68                                 exit 1
  69                         fi
  70                         if [ $(echo "$m" | wc -l) -gt 1 ]; then
  71                                 echo >&2 "Cluster name '$a' ambiguous:" $m
  72                                 exit 1
  73                         fi
  74                         a=$(awk -va="$a" -F= 'substr($0, 1, length(a)) == a {print $2}' /etc/mysql/clusters.conf)
  75                 fi
  76                 DB_CLUSTERS="$DB_CLUSTERS $a"
  77         done
  78 else
  79         DB_CLUSTERS="$MYSQL_DB_CLUSTERS"
  80 fi
  81
  82 MYSQL_ERRLOG=/var/log/mysql/err
  83 MYSQL_START_WAIT_TIME=${MYSQL_START_WAIT_TIME:-15}
  84 MYSQL_STOP_WAIT_TIME=${MYSQL_STOP_WAIT_TIME:-900}
  85
  86 #
  87 # Useful functions.
  88 #
  89
  90 #
  91 # check for mysql status
  92 #
  93 # arguments:
  94 # $1 - db cluster
  95 # $2 - start|stop
  96 #
  97 # sets variables:
  98 # MYSQL_STATUS = starting | running | not running | died
  99 # MYSQL_PID    = pid of mysqld process
 100 #
 101 mysqlstatus() {
 102         clusterdir="$1"
 103         mode="$2"
 104
 105         mysqlgetconfig "$clusterdir"
 106
 107         MYSQL_STATUS="not running"
 108         MYSQL_PID="unknown"
 109         MYSQL_PIDFILE_PID=""
 110         MYSQL_GREP_PID=""
 111
 112         if [ -f "$MYSQL_PIDFILE" ]; then
 113                 MYSQL_PIDFILE_PID=$(cat "$MYSQL_PIDFILE")
 114         fi
 115
 116         if [ -n "$MYSQL_PIDFILE_PID" ]; then
 117                 MYSQL_PID=$MYSQL_PIDFILE_PID
 118                 if [ ! -d "/proc/$MYSQL_PID" ]; then
 119                         MYSQL_STATUS="died"
 120                         return
 121                 elif (grep -qa "$MYSQL_PIDFILE" /proc/$MYSQL_PID/cmdline 2> /dev/null); then
 122                         MYSQL_STATUS="running"
 123                         return
 124                 fi
 125         fi
 126
 127         if [ "$mode" = "start" ]; then
 128                 MYSQL_GREP_PID=$(grep -lE "^/usr/sbin/mysqld.*${MYSQL_PIDFILE}" /proc/[0-9]*/cmdline 2> /dev/null | awk -F "/" '{ print $3; exit; }')
 129                 if [ -n "$MYSQL_GREP_PID" ]; then
 130                         MYSQL_PID=$MYSQL_GREP_PID
 131                         if grep -qa "$MYSQL_PIDFILE" /proc/$MYSQL_PID/cmdline 2> /dev/null; then
 132                                 if [ -f "$MYSQL_PIDFILE" ]; then
 133                                         MYSQL_PIDFILE_PID=$(cat "$MYSQL_PIDFILE")
 134                                 fi
 135                                 if [ -n "$MYSQL_PIDFILE_PID" ]; then
 136                                         MYSQL_PID=$MYSQL_PIDFILE_PID
 137                                         MYSQL_STATUS="running"
 138                                         return
 139                                 else
 140                                         MYSQL_STATUS="starting"
 141                                         return
 142                                 fi
 143                         fi
 144                 fi
 145         fi
 146
 147         # else default, "not running"
 148 }
 149
 150 # get mysql configuration in variables
 151 # MYSQL_CONFIG MYSQL_DATA_DIR MYSQL_USER MYSQL_PIDFILE
 152 #
 153 # arguments
 154 # $1 - db cluster
 155
 156 mysqlgetconfig() {
 157         clusterdir="$1"
 158
 159         # emulate old behaviour if only one cluster specified
 160         if [ "$clusterdir" = "$MYSQL_DB_CLUSTERS" -a "$clusterdir" = "/var/lib/mysql" -a -f /etc/mysqld.conf ]; then
 161                 MYSQL_RA_COMPAT=yes
 162                 config_file=/etc/mysqld.conf
 163         else
 164                 config=$(awk -F= -vclusterdir="$clusterdir" '!/^#/{ if (clusterdir == $2) print $1}' /etc/mysql/clusters.conf)
 165                 if [[ $config = /* ]]; then
 166                         config_file="$config"
 167                 elif [ -f "/etc/mysql/$config" ]; then
 168                         config_file="/etc/mysql/$config"
 169                 else
 170                         config_file="$clusterdir/mysqld.conf"
 171                 fi
 172         fi
 173
 174         MYSQL_CLUSTER_DIR="$clusterdir"
 175
 176         if [ -z "$config_file" ]; then
 177                 nls "Error: Can't find config file for %s cluster" "$clusterdir"
 178                 exit 6
 179         else
 180                 MYSQL_CONFIG="$config_file"
 181         fi
 182
 183         if [ ! -f "$config_file" ]; then
 184                 nls "Error: config file %s not found" "$config_file"
 185                 nls "MySQL can't be run. Did you initialize DB by doing \`$0 init'?"
 186                 exit 6
 187         fi
 188
 189         eval `awk '
 190 /^[ \t]*\[.*\][ \t]*$/ {
 191         match($0,/\[.*\]/)
 192         section=substr($0, RSTART + 1, RSTART + RLENGTH - 3)
 193 }
 194 section == "mysqld" && $2 ~ "=" {
 195         if ($1 == "datadir") {
 196                 printf("MYSQL_DATA_DIR=%s;", $3)
 197         } else if ($1 == "user") {
 198                 printf("MYSQL_USER=%s;", $3)
 199         } else if ($1 == "pid-file") {
 200                 printf("MYSQL_PIDFILE=%s;", $3)
 201         } else if ($1 == "socket") {
 202                 printf("MYSQL_SOCKET=%s;", $3)
 203         }
 204 }
 205 ' $config_file`
 206
 207
 208         if is_yes "$MYSQL_RA_COMPAT"; then
 209                 MYSQL_DATA_DIR_SUB=""
 210         else
 211                 MYSQL_DATA_DIR_SUB="/mysqldb"
 212         fi
 213
 214         if [ -z "$MYSQL_DATA_DIR" -o "$MYSQL_DATA_DIR" != "${clusterdir}${MYSQL_DATA_DIR_SUB}/db" ]; then
 215                 nls "Error: datadir specified in %s should be %s" "$config_file" "$clusterdir${MYSQL_DATA_DIR_SUB}/db"
 216                 nls " MySQL can't be run."
 217                 exit 6
 218         fi
 219
 220         if [ -z "$MYSQL_PIDFILE" -o "$MYSQL_PIDFILE" != "$clusterdir${MYSQL_DATA_DIR_SUB}/mysql.pid" ]; then
 221                 nls "Error: pid-file specified in %s should be %s" "$config_file" "$clusterdir${MYSQL_DATA_DIR_SUB}/mysql.pid"
 222                 nls " MySQL can't be run."
 223                 exit 6
 224         fi
 225
 226         if [ -z $MYSQL_USER ]; then
 227                 echo "$(nls 'MySQL user not configured properly')"'!' >&2
 228                 nls "Edit %s and configure it." "$config_file" >&2
 229                 exit 6
 230         fi
 231 }
 232
 233 # start mysql
 234 mysqlstart() {
 235         clusterdir="$1"
 236         mysqlgetconfig "$clusterdir"
 237         if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
 238                 nls "MySQL cluster %s not initialized." "$clusterdir"
 239                 nls "Try \`%s init %s' before start." "$0" "$clusterdir"
 240                 exit 6
 241         fi
 242
 243         msg_starting "MySQL $clusterdir"
 244         busy
 245         [ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0
 246         rm -f "$MYSQL_PIDFILE"
 247
 248         TMPDIR=/tmp nice -n ${SERVICE_RUN_NICE_LEVEL:-$DEFAULT_SERVICE_RUN_NICE_LEVEL} \
 249                 /usr/bin/setsid /usr/sbin/mysqld \
 250                         --defaults-file=$MYSQL_CONFIG \
 251                         --datadir=$MYSQL_DATA_DIR \
 252                         --pid-file=$MYSQL_PIDFILE $MYSQL_OPTIONS \
 253                 >> $MYSQL_ERRLOG 2>&1 &
 254         pid=$!
 255
 256         sleep 0.1
 257         mysqlstatus "$clusterdir" start
 258         # it takes longer for mysqld to start and create pidfile if it has to recover innodb transactions
 259         if [ "$MYSQL_STATUS" = "starting" ]; then
 260                 echo ""
 261                 show "Waiting for MySQL to start"
 262                 busy
 263
 264                 # while the pid is running, mysql is starting up
 265                 # if the pidfile was created, it started up successfully
 266                 # if either case fails we break and report status
 267                 while true; do
 268                         [ -d /proc/$pid ] || break
 269                         [ -f "$MYSQL_PIDFILE" ] && break
 270                         sleep 0.2
 271                 done
 272         fi
 273
 274         mysqlstatus "$clusterdir" start
 275         if [ "$MYSQL_STATUS" = "running" -a "$MYSQL_PID" != "unknown" ]; then
 276                 ok
 277         elif [ "$MYSQL_STATUS" = "died" ]; then
 278                 RETVAL=1
 279                 died
 280         else
 281                 RETVAL=1
 282                 fail
 283         fi
 284 }
 285
 286 # stop mysql
 287 mysqlstop() {
 288         clusterdir="$1"
 289         mysqlstatus "$clusterdir" stop
 290         msg_stopping "MySQL $clusterdir"
 291         busy
 292
 293         # try graceful shutdown -- send shutdown command
 294         # requires mysql_sysadmin user proper privs
 295         /usr/bin/mysqladmin --defaults-file=$MYSQL_CONFIG ${MYSQL_SOCKET:+--socket=$MYSQL_SOCKET} shutdown >/dev/null 2>&1
 296         mysqlstatus "$clusterdir" stop
 297
 298         if [ "$MYSQL_PID" != "unknown" ]; then
 299                 kill -TERM "$MYSQL_PID" 2> /dev/null
 300                 for nr in $(seq 1 $(($MYSQL_STOP_WAIT_TIME*10))); do
 301                         [ -d "/proc/$MYSQL_PID" ] || break
 302                         sleep 0.1
 303                 done
 304         fi
 305
 306         mysqlstatus "$clusterdir" stop
 307         if [ "$MYSQL_STATUS" = "died" ]; then
 308                 died
 309         elif [ "$MYSQL_STATUS" = "running" -o "$MYSQL_STATUS" = "starting" ]; then
 310                 fail
 311         else
 312                 ok
 313         fi
 314 }
 315
 316 #
 317 # check for running mysql instances; if any instance is running then
 318 # create subsys lock file
 319 #
 320 mysqlsubsys() {
 321         # check for every defined db cluster in sysconfig file
 322         for mysqldir in $DB_CLUSTERS; do
 323                 mysqlstatus "$mysqldir"
 324                 if [ "$MYSQL_STATUS" = "running" ]; then
 325                         touch /var/lock/subsys/mysql
 326                         return
 327                 fi
 328         done
 329         rm -f /var/lock/subsys/mysql
 330 }
 331
 332 mysqlinit() {
 333         clusterdir="$1"
 334
 335         if [ -f /etc/mysqld.conf ]; then
 336                 nls "Running in \`no cluster compat' mode: can't initialize database."
 337                 nls "Move /etc/mysqld.conf away and rerun \`$0 init' (new config will be in $clusterdir)."
 338                 exit 1
 339         fi
 340
 341         if [ -f "$clusterdir/mysqld.conf" ]; then
 342                 mysqlgetconfig "$clusterdir"
 343         else
 344                 MYSQL_USER="mysql"
 345                 MYSQL_CLUSTER_DIR="$clusterdir"
 346                 MYSQL_DATA_DIR="$clusterdir/mysqldb/db"
 347                 MYSQL_PIDFILE="$clusterdir/mysqldb/mysql.pid"
 348                 MYSQL_SOCKET="$clusterdir/mysqldb/mysql.sock"
 349
 350                 # this $MYSQL_CONFIG will be created later
 351                 MYSQL_CONFIG="$MYSQL_CLUSTER_DIR/mysqld.conf"
 352         fi
 353
 354         show "Initializing cluster %s" "$clusterdir"; echo
 355
 356         # Check if not exist init database
 357         if [ -d "$MYSQL_DATA_DIR/mysql" ]; then
 358                 nls "Seems that database is initialized now. Remove by hand %s" "$MYSQL_DATA_DIR/mysql"
 359                 nls "before initializing database."
 360                 nls "For now skipping cluster %s." "$clusterdir"
 361                 return
 362         fi
 363
 364         show "Installing MySQL system tables for $MYSQL_DATA_DIR"
 365         busy
 366         TMP=/tmp TMPDIR=/tmp
 367
 368         mkdir -p "$MYSQL_DATA_DIR" > /dev/null 2>&1
 369         # Using mysql:mysql for MYSQL_CLUSTER_DIR is creating SECURITY hole, root:root is proper
 370         chown root:root "$MYSQL_CLUSTER_DIR"
 371         chown mysql:mysql "$MYSQL_CLUSTER_DIR/mysqldb" "$MYSQL_DATA_DIR" > /dev/null 2>&1
 372         chmod 751 "$MYSQL_CLUSTER_DIR" "$MYSQL_CLUSTER_DIR/mysqldb"
 373
 374         if [ -f /usr/share/mysql/mysqld.conf -a ! -f "$MYSQL_CLUSTER_DIR/mysqld.conf" ]; then
 375             sed -e "
 376                 s#\(datadir.*\)=.*#\1= $MYSQL_DATA_DIR#g;
 377                 s#\(pid-file.*\)=.*#\1= $MYSQL_PIDFILE#g;
 378                 s#\(socket.*\)=.*#\1= $MYSQL_SOCKET#g;
 379                 s#@clusterdir@#$MYSQL_CLUSTER_DIR#g;
 380                 " /usr/share/mysql/mysqld.conf > "$MYSQL_CLUSTER_DIR/mysqld.conf"
 381             chown root:root "$MYSQL_CLUSTER_DIR/mysqld.conf"
 382             chmod 640 "$MYSQL_CLUSTER_DIR/mysqld.conf"
 383         fi
 384
 385         if [ ! -e /var/lib/mysql/mysql.sock ] || [ -L /var/lib/mysql/mysql.sock ] && [ -z "$(readlink /var/lib/mysql/mysql.sock)" ]; then
 386                 sock=${MYSQL_SOCKET#/var/lib/mysql/} # make it relative if possible
 387             ln -s "$sock" /var/lib/mysql/mysql.sock
 388         fi
 389
 390         cat > $MYSQL_DATA_DIR/mysql-init.sql <<-EOF
 391                 CREATE DATABASE mysql;
 392                 use mysql;
 393                 $(cat /usr/share/mysql/mysql_system_tables.sql)
 394                 $(sed -e "/@current_hostname/d" /usr/share/mysql/mysql_system_tables_data.sql)
 395 EOF
 396
 397         ok=0
 398         /usr/sbin/mysqld --bootstrap --skip-grant-tables \
 399                 --datadir=$MYSQL_DATA_DIR --user=$MYSQL_USER \
 400                 --slave-load-tmpdir=$MYSQL_DATA_DIR --tmpdir=$MYSQL_DATA_DIR < \
 401                 $MYSQL_DATA_DIR/mysql-init.sql 2>> /var/log/mysql/err && ok=1
 402         [ -f $MYSQL_DATA_DIR/mysql/host.frm ] || ok=0
 403
 404         if [ "$ok" = 1 ]; then
 405                 rm -f $MYSQL_DATA_DIR/mysql-init.sql
 406                 ok
 407                 cat << END_OF_MSG
 408
 409 PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL USERS!
 410 This is done, after starting database, in the order shown,
 411 with:
 412
 413 For 'mysql_sysadmin' (RELOAD and SHUTDOWN privileges):
 414 echo "update mysql.user set password=password('newpassword') where user='mysql_sysadmin'; FLUSH PRIVILEGES;" | mysql -u mysql -S $MYSQL_SOCKET
 415
 416 For 'mysql' user (ALL privileges, DB admin):
 417 echo "update mysql.user set password=password('newpassword') where user='mysql'; FLUSH PRIVILEGES;" | mysql -u mysql -S $MYSQL_SOCKET
 418
 419 NOTE: mysql_sysadmin password should be placed to $MYSQL_CONFIG in
 420 mysqladmin section. See the manual for more instructions.
 421 (This user is used at logs rotation and server shutdown)
 422
 423 END_OF_MSG
 424                 show "Filling help tables..."
 425                 ok=0
 426                 ( echo "use mysql;"; cat /usr/share/mysql/fill_help_tables.sql ) | \
 427                         /usr/sbin/mysqld --bootstrap --skip-grant-tables \
 428                         --datadir=$MYSQL_DATA_DIR --user=$MYSQL_USER \
 429                         --slave-load-tmpdir=$MYSQL_DATA_DIR --tmpdir=$MYSQL_DATA_DIR < \
 430                         $MYSQL_DATA_DIR/mysql-init.sql 2>> /var/log/mysql/err && ok=1
 431                 if [ "$ok" = 1 ]; then
 432                         ok
 433                 else
 434                         cat << END_OF_MSG
 435
 436 WARNING: HELP FILES ARE NOT COMPLETELY INSTALLED!
 437 The "HELP" command might not work properly.
 438
 439 END_OF_MSG
 440                 fi
 441         else
 442                 fail
 443                 cat << END_OF_MSG
 444 Installation of grant tables FAILED!
 445
 446 The initialization SQL script was preserved at $MYSQL_DATA_DIR/mysql-init.sql
 447
 448 Examine the logs in /var/log/mysql for more information.  You can
 449 also try to start the mysqld daemon with:
 450
 451 /usr/sbin/mysqld --skip-grant &
 452
 453 You can use the command line tool mysql to connect to the mysql
 454 database and look at the grant tables:
 455
 456 shell> mysql -u mysql mysql
 457 mysql> show tables
 458
 459 Try 'mysqld --help' if you have problems with paths. Setting on
 460 logging in /etc/mysqld.conf gives you a log in /var/log/mysql/log that
 461 may be helpful. The latest information about MySQL is available on the
 462 web at http://www.mysql.com/.
 463
 464 Please check PLD Linux ftp site for newer versions of this package.
 465
 466 Please consult the MySQL manual section: 'Problems running
 467 mysql_install_db', and the manual section that describes problems on
 468 your OS.  Another information source is the MySQL email archive.
 469 Please check all of the above before mailing us!  And if you do mail
 470 us, you MUST use the mysqlbug script!
 471
 472 END_OF_MSG
 473                 exit 1
 474         fi
 475 }
 476
 477 #
 478 # End of useful functions.
 479 #
 480
 481 start() {
 482         if [ ! -f $MYSQL_ERRLOG ]; then
 483                 touch $MYSQL_ERRLOG
 484         fi
 485         chown mysql:mysql $MYSQL_ERRLOG
 486         chmod 640 $MYSQL_ERRLOG
 487
 488         for mysqldir in $DB_CLUSTERS; do
 489                 mysqlstatus "$mysqldir" start
 490                 if [ "$MYSQL_STATUS" = "running" ]; then
 491                         msg_already_running "MySQL $mysqldir"
 492                 else
 493                         mysqlstart "$mysqldir"
 494                 fi
 495         done
 496         mysqlsubsys
 497 }
 498
 499 stop() {
 500         for mysqldir in $DB_CLUSTERS; do
 501                 mysqlstatus "$mysqldir" stop
 502                 if [ "$MYSQL_STATUS" = "not running" ]; then
 503                         msg_not_running "MySQL $mysqldir"
 504                 else
 505                         mysqlstop "$mysqldir"
 506                 fi
 507         done
 508         mysqlsubsys
 509 }
 510
 511 RETVAL=0
 512 case "$action" in
 513   start)
 514         start
 515         ;;
 516   stop)
 517         stop
 518         ;;
 519   status)
 520         for mysqldir in $DB_CLUSTERS; do
 521                 mysqlstatus "$mysqldir"
 522                 if [ "$MYSQL_STATUS" = "running" ]; then
 523                         show "MySQL cluster %s, PID %s" "$mysqldir" "$MYSQL_PID"
 524                         pids="$pids/$MYSQL_PID/"
 525                         progress "$MYSQL_STATUS"
 526                 else
 527                         show "MySQL cluster %s" "$mysqldir"
 528                         progress "$MYSQL_STATUS" "$CFAIL"
 529                 fi
 530                 echo
 531         done
 532
 533         for pid in $(/sbin/pidof mysqld); do
 534                 if [[ $pids != */$pid/* ]]; then
 535                         running="$running $pid"
 536                 fi
 537         done
 538
 539         if [ $# -gt 1 -a "$running" ]; then
 540                 nls "Warning: MySQL Daemon processes not under clusters.conf control:"
 541                 # see if we can display their status
 542                 for pid in $running; do
 543                         datadir=$(cat /proc/$pid/cmdline | tr '\0' '\n' | fgrep -- --datadir=)
 544                         datadir=${datadir#--datadir=} # strip --datadir
 545                         mysqldir=${datadir%/mysqldb/db} # strip /mysqldb/db
 546                         mysqlstatus "$mysqldir"
 547                         if [ "$MYSQL_STATUS" = "running" ]; then
 548                                 show "MySQL cluster %s, PID %s" "$mysqldir" "$pid"
 549                                 progress "$MYSQL_STATUS"
 550                         else
 551                                 show "MySQL cluster %s" "$mysqldir"
 552                                 progress "$MYSQL_STATUS" "$CFAIL"
 553                         fi
 554                         echo
 555                 done
 556         fi
 557         ;;
 558   restart|force-reload)
 559         stop
 560         start
 561         ;;
 562   init)
 563         for mysqldir in $DB_CLUSTERS; do
 564                 mysqlinit "$mysqldir"
 565         done
 566         exit $?
 567         ;;
 568   flush-logs)
 569         for mysqldir in $DB_CLUSTERS; do
 570             mysqlgetconfig "$mysqldir"
 571                 # just if mysqld is really running
 572                 if /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" ping >/dev/null 2>&1; then
 573                         /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" flush-logs
 574                 fi
 575         done
 576         ;;
 577   *)
 578         msg_usage "$0 {start|stop|init|restart|force-reload|status}"
 579         exit 3
 580 esac
 581
 582 exit $RETVAL