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 # Source function library
  10 . /etc/rc.d/init.d/functions
  11
  12 # Get network config
  13 . /etc/sysconfig/network
  14
  15 # Get service config
  16 if [ -f /etc/sysconfig/mysql ]; then
  17         . /etc/sysconfig/mysql
  18 else
  19         nls "Error: %s not found" /etc/sysconfig/mysql
  20         nls "%s can't be run." MySQL
  21         exit 1
  22 fi
  23
  24 [ -z "$BASE_TABLETYPE" ] && BASE_TABLETYPE="MyISAM"
  25
  26 if [ -n "$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         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_OPTIONS >> $MYSQL_ERRLOG 2>&1 &
 248         sleep 0.2
 249         mysqlstatus "$clusterdir" start
 250         # it takes longer for mysqld to start and create pidfile if it has to recover innodb transactions
 251         if [ "$MYSQL_STATUS" = "starting" ]; then
 252                 for nr in $(seq 1 $(($MYSQL_START_WAIT_TIME*10))); do
 253                         [ -f "$MYSQL_PIDFILE" ] && break
 254                         sleep 0.1
 255                 done
 256         fi
 257
 258         mysqlstatus "$clusterdir" start
 259         if [ "$MYSQL_STATUS" = "running" -a "$MYSQL_PID" != "unknown" ]; then
 260                 ok
 261         elif [ "$MYSQL_STATUS" = "died" ]; then
 262                 RETVAL=1
 263                 died
 264         else
 265                 RETVAL=1
 266                 fail
 267         fi
 268 }
 269
 270 # stop mysql
 271 mysqlstop() {
 272         clusterdir="$1"
 273         mysqlstatus "$clusterdir" stop
 274         msg_stopping "MySQL $clusterdir"
 275         busy
 276
 277         # try graceful shutdown -- send shutdown command
 278         # requires mysql_logrotate user proper privs
 279         /usr/bin/mysqladmin --defaults-file=$MYSQL_CONFIG ${MYSQL_SOCKET:+--socket=$MYSQL_SOCKET} shutdown >/dev/null 2>&1
 280         mysqlstatus "$clusterdir" stop
 281
 282         if [ "$MYSQL_PID" != "unknown" ]; then
 283                 kill -TERM "$MYSQL_PID" 2> /dev/null
 284                 for nr in $(seq 1 $(($MYSQL_STOP_WAIT_TIME*10))); do
 285                         [ -d "/proc/$MYSQL_PID" ] || break
 286                         sleep 0.1
 287                 done
 288         fi
 289
 290         mysqlstatus "$clusterdir" stop
 291         if [ "$MYSQL_STATUS" = "died" ]; then
 292                 died
 293         elif [ "$MYSQL_STATUS" = "running" -o "$MYSQL_STATUS" = "starting" ]; then
 294                 fail
 295         else
 296                 ok
 297         fi
 298 }
 299
 300 #
 301 # check for running mysql instances; if any instance is running then
 302 # create subsys lock file
 303 #
 304 mysqlsubsys() {
 305         # check for every defined db cluster in sysconfig file
 306         for mysqldir in $DB_CLUSTERS; do
 307                 mysqlstatus "$mysqldir"
 308                 if [ "$MYSQL_STATUS" = "running" ]; then
 309                         touch /var/lock/subsys/mysql
 310                         return
 311                 fi
 312         done
 313         rm -f /var/lock/subsys/mysql
 314 }
 315
 316 mysqlinit() {
 317         clusterdir="$1"
 318
 319         if [ -f /etc/mysqld.conf ]; then
 320                 nls "Running in \`no cluster compat' mode: can't initialize database."
 321                 nls "Move /etc/mysqld.conf away and rerun \`$0 init' (new config will be in $clusterdir)."
 322                 exit 1
 323         fi
 324
 325         if [ -f "$clusterdir/mysqld.conf" ]; then
 326                 mysqlgetconfig "$clusterdir"
 327         else
 328                 MYSQL_USER="mysql"
 329                 MYSQL_CLUSTER_DIR="$clusterdir"
 330                 MYSQL_DATA_DIR="$clusterdir/mysqldb/db"
 331                 MYSQL_PIDFILE="$clusterdir/mysqldb/mysql.pid"
 332                 MYSQL_SOCKET="$clusterdir/mysqldb/mysql.sock"
 333
 334                 # this $MYSQL_CONFIG will be created later
 335                 MYSQL_CONFIG="$MYSQL_CLUSTER_DIR/mysqld.conf"
 336         fi
 337
 338         nls "Initializing cluster %s" "$clusterdir"
 339
 340         # Check if not exist init database
 341         if [ -d "$MYSQL_DATA_DIR/mysql" ]; then
 342                 nls "Seems that database is initialized now. Remove by hand %s" "$MYSQL_DATA_DIR/mysql"
 343                 nls "before initializing database."
 344                 nls "For now skipping cluster %s." "$clusterdir"
 345                 return
 346         fi
 347
 348         show "Creating privilege mysql tables for $MYSQL_DATA_DIR"
 349         busy
 350         TMP=/tmp TMPDIR=/tmp
 351
 352         mkdir -p "$MYSQL_DATA_DIR"
 353         # Using mysql:mysql for MYSQL_CLUSTER_DIR is creating SECURITY hole, root:root is proper
 354         chown root:root "$MYSQL_CLUSTER_DIR"
 355     chown mysql:mysql "$MYSQL_CLUSTER_DIR/mysqldb" "$MYSQL_DATA_DIR" > /dev/null 2>&1
 356         chmod 751 "$MYSQL_CLUSTER_DIR" "$MYSQL_CLUSTER_DIR/mysqldb"
 357
 358         if [ -f /usr/share/mysql/mysqld.conf -a ! -f "$MYSQL_CLUSTER_DIR/mysqld.conf" ]; then
 359             sed -e "
 360                 s#\(datadir.*\)=.*#\1= $MYSQL_DATA_DIR#g;
 361                 s#\(pid-file.*\)=.*#\1= $MYSQL_PIDFILE#g;
 362                 s#\(socket.*\)=.*#\1= $MYSQL_SOCKET#g;
 363                 s#@clusterdir@#$MYSQL_CLUSTER_DIR#g;
 364                 " /usr/share/mysql/mysqld.conf > "$MYSQL_CLUSTER_DIR/mysqld.conf"
 365             chown root:root "$MYSQL_CLUSTER_DIR/mysqld.conf"
 366             chmod 640 "$MYSQL_CLUSTER_DIR/mysqld.conf"
 367         fi
 368
 369         if [ ! -e /var/lib/mysql/mysql.sock ] || [ -L /var/lib/mysql/mysql.sock ] && [ -z "$(readlink /var/lib/mysql/mysql.sock)" ]; then
 370                 sock=${MYSQL_SOCKET#/var/lib/mysql/} # make it relative if possible
 371             ln -s "$sock" /var/lib/mysql/mysql.sock
 372         fi
 373
 374         cat > $MYSQL_DATA_DIR/mysql-init.sql <<-EOF
 375                 CREATE DATABASE mysql;
 376                 $(/usr/sbin/mysql_create_system_tables real)
 377 EOF
 378
 379         ok=0
 380         /usr/sbin/mysqld --bootstrap --skip-grant-tables \
 381                 --datadir=$MYSQL_DATA_DIR --user=$MYSQL_USER < $MYSQL_DATA_DIR/mysql-init.sql && ok=1
 382         [ -f $MYSQL_DATA_DIR/mysql/host.frm ] || ok=0
 383         if [ "$ok" = 1 ]; then
 384                 rm -f $MYSQL_DATA_DIR/mysql-init.sql
 385             ok
 386         cat << END_OF_MSG
 387
 388 PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL USERS!
 389 This is done (after starting database; press enter when asked for password) with:
 390
 391 /usr/bin/mysqladmin -u mysql -S $MYSQL_SOCKET password 'password'
 392 /usr/bin/mysqladmin -u mysql_logrotate -S $MYSQL_SOCKET password 'password'
 393
 394 NOTE: mysql_logrotate password should be placed to $MYSQL_CONFIG in
 395 mysqladmin section. See the manual for more instructions.
 396
 397 If you want to use new help tables in MySQL 4.1.x then you'll need to import the help data:
 398 /usr/bin/mysql -u mysql -p -S $MYSQL_SOCKET mysql < /usr/share/mysql/fill_help_tables.sql
 399
 400 END_OF_MSG
 401       else
 402             fail
 403             cat << END_OF_MSG
 404 Installation of grant tables FAILED!
 405
 406 The initialization SQL script was preserved at $MYSQL_DATA_DIR/mysql-init.sql
 407
 408 Examine the logs in /var/log/mysql for more information.  You can
 409 also try to start the mysqld daemon with:
 410
 411 /usr/sbin/mysqld --skip-grant &
 412
 413 You can use the command line tool /usr/bin/mysql to connect to the mysql
 414 database and look at the grant tables:
 415
 416 shell> /usr/bin/mysql -u mysql mysql
 417 mysql> show tables
 418
 419 Try 'mysqld --help' if you have problems with paths. Setting on
 420 logging in /etc/mysqld.conf gives you a log in /var/log/mysql/log that
 421 may be helpful. The latest information about MySQL is available on the
 422 web at http://www.mysql.com/.
 423
 424 Please check PLD Linux ftp site for newer versions of this package.
 425
 426 Please consult the MySQL manual section: 'Problems running
 427 mysql_install_db', and the manual section that describes problems on
 428 your OS.  Another information source is the MySQL email archive.
 429 Please check all of the above before mailing us!  And if you do mail
 430 us, you MUST use the /usr/bin/mysqlbug script!
 431
 432 END_OF_MSG
 433
 434         exit 1
 435         fi
 436 }
 437
 438 #
 439 # End of useful functions.
 440 #
 441
 442 start() {
 443         if [ ! -f $MYSQL_ERRLOG ]; then
 444                 touch $MYSQL_ERRLOG
 445         fi
 446         chown mysql:mysql $MYSQL_ERRLOG
 447         chmod 640 $MYSQL_ERRLOG
 448
 449         for mysqldir in $DB_CLUSTERS; do
 450                 mysqlstatus "$mysqldir" start
 451                 if [ "$MYSQL_STATUS" = "running" ]; then
 452                         msg_already_running "MySQL $mysqldir"
 453                 else
 454                         mysqlstart "$mysqldir"
 455                 fi
 456         done
 457         mysqlsubsys
 458 }
 459
 460 stop() {
 461         for mysqldir in $DB_CLUSTERS; do
 462                 mysqlstatus "$mysqldir" stop
 463                 if [ "$MYSQL_STATUS" = "not running" ]; then
 464                         msg_not_running "MySQL $mysqldir"
 465                 else
 466                         mysqlstop "$mysqldir"
 467                 fi
 468         done
 469         mysqlsubsys
 470 }
 471
 472 RETVAL=0
 473 case "$action" in
 474   start)
 475         start
 476         ;;
 477   stop)
 478         stop
 479         ;;
 480   status)
 481         for mysqldir in $DB_CLUSTERS; do
 482                 mysqlstatus "$mysqldir"
 483                 if [ "$MYSQL_STATUS" = "running" ]; then
 484                         show "MySQL cluster %s, PID %s" "$mysqldir" "$MYSQL_PID"
 485                         progress "$MYSQL_STATUS"
 486                 else
 487                         show "MySQL cluster %s" "$mysqldir"
 488                         progress "$MYSQL_STATUS" "$CFAIL"
 489                 fi
 490                 echo
 491         done
 492         exit $?
 493         ;;
 494   restart|force-reload)
 495         stop
 496         start
 497         ;;
 498   init)
 499         for mysqldir in $DB_CLUSTERS; do
 500                 mysqlinit "$mysqldir"
 501         done
 502         exit $?
 503         ;;
 504   flush-logs)
 505         for mysqldir in $DB_CLUSTERS; do
 506             mysqlgetconfig "$mysqldir"
 507                 # just if mysqld is really running
 508                 if /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" ping >/dev/null 2>&1; then
 509                         /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" flush-logs
 510                 fi
 511         done
 512         ;;
 513   *)
 514         msg_usage "$0 {start|stop|init|restart|force-reload|status}"
 515         exit 3
 516 esac
 517
 518 exit $RETVAL
 519
 520 # vi: shiftwidth=4 tabstop=4