percona-server.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/percona-server ]; then
  17         . /etc/sysconfig/percona-server
  18 else
  19         nls "Error: %s not found" /etc/sysconfig/percona-server
  20         nls "%s can't be run." percona-server
  21         exit 1
  22 fi
  23
  24 if [ -n "$MYSQL_DB_CLUSTERS" ]; then
  25         nls "Warning: MYSQL_DB_CLUSTERS is set. It's obsolete. Use %s instead." /etc/percona-server/clusters.conf
  26 fi
  27
  28 if [ -f /etc/percona-server/clusters.conf ]; then
  29         MYSQL_DB_CLUSTERS=$(awk -F= '!/^#/ && /=/{print $2}' /etc/percona-server/clusters.conf)
  30         if [ -z "$MYSQL_DB_CLUSTERS" ]; then
  31                 nls "Warning: there are no configured clusters."
  32         fi
  33
  34 else
  35         nls "Warning: Missing clusters config file %s" /etc/percona-server/clusters.conf
  36         if [ -z "$MYSQL_DB_CLUSTERS" ]; then
  37                 nls "Warning: there are no configured clusters."
  38                 nls "Using default cluster /var/lib/mysql (compatibility mode)"
  39                 MYSQL_DB_CLUSTERS=/var/lib/mysql
  40         fi
  41 fi
  42
  43
  44 # Check that networking is up
  45 if is_yes "${NETWORKING}"; then
  46         if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status -a "$1" != init ]; then
  47                 msg_network_down percona-server
  48                 exit 1
  49         fi
  50 else
  51         exit 0
  52 fi
  53
  54 sharedir=/usr/share/percona-server
  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/percona-server/clusters.conf
  64                 if [[ "$a" != /* ]]; then
  65                         m=$(awk -va="$a" -F= 'substr($0, 1, length(a)) == a {print $1}' /etc/percona-server/clusters.conf)
  66                         if [ -z "$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 $2}' /etc/percona-server/clusters.conf)
  75                 fi
  76                 DB_CLUSTERS="$DB_CLUSTERS $a"
  77         done
  78 else
  79         DB_CLUSTERS="$MYSQL_DB_CLUSTERS"
  80 fi
  81
  82 # global error log, if mysqld.conf hasn't migrated to log-error style
  83 MYSQL_ERRLOG=/var/log/percona-server/mysqld.log
  84 MYSQL_STOP_WAIT_TIME=${MYSQL_STOP_WAIT_TIME:-900}
  85
  86 #
  87 # Useful functions.
  88 #
  89
  90 #
  91 # check for percona-server 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 percona-server process
 100 #
 101 mysqlstatus() {
 102         clusterdir="$1"
 103         mode="$2"
 104
 105         mysqlgetconfig "$clusterdir" status
 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 -alE "^/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_CLUSTER_DIR
 152 # MYSQL_DATA_DIR MYSQL_USER MYSQL_PIDFILE MYSQL_SOCKET MYSQL_PORT MYSQL_BIND_ADDRESS MYSQL_SKIP_NETWORKING MYSQL_LOG_ERROR
 153 #
 154 # arguments
 155 # $1 - db cluster
 156 # $2 - status | other
 157
 158 mysqlgetconfig() {
 159         local clusterdir="$1" config_file
 160         local mode="$2"
 161
 162         # emulate old behaviour if only one cluster specified
 163         if [ "$clusterdir" = "$MYSQL_DB_CLUSTERS" -a "$clusterdir" = "/var/lib/mysql" -a -f /etc/mysqld.conf ]; then
 164                 MYSQL_RA_COMPAT=yes
 165                 config_file=/etc/mysqld.conf
 166         else
 167                 local config=$(awk -F= -vclusterdir="$clusterdir" '!/^#/{ if (clusterdir == $2) print $1}' /etc/percona-server/clusters.conf)
 168                 if [[ $config = /* ]]; then
 169                         config_file="$config"
 170                 elif [ -f "/etc/percona-server/$config" ]; then
 171                         config_file="/etc/percona-server/$config"
 172                 else
 173                         config_file="$clusterdir/mysqld.conf"
 174                 fi
 175         fi
 176
 177         MYSQL_CLUSTER_DIR="$clusterdir"
 178
 179         if [ -z "$config_file" ]; then
 180                 nls "Error: Can't find config file for %s cluster" "$clusterdir"
 181                 if [ "$mode" = "status" ]; then
 182                         exit 3
 183                 else
 184                         exit 6
 185                 fi
 186         else
 187                 MYSQL_CONFIG="$config_file"
 188         fi
 189
 190         if [ ! -f "$config_file" ]; then
 191                 nls "Error: config file %s not found" "$config_file"
 192                 nls "percona-server can't be run. Did you initialize DB by doing \`$0 init'?"
 193                 if [ "$mode" = "status" ]; then
 194                         exit 3
 195                 else
 196                         exit 6
 197                 fi
 198         fi
 199
 200         # reset to initial state
 201         MYSQL_DATA_DIR= MYSQL_USER= MYSQL_PIDFILE= MYSQL_SOCKET= MYSQL_PORT= MYSQL_BIND_ADDRESS= MYSQL_SKIP_NETWORKING= MYSQL_LOG_ERROR=
 202
 203         eval `awk -F= '
 204         {
 205                 # undos
 206                 gsub(/\r$/, "");
 207
 208                 # trim spaces
 209                 gsub(/^[\t ]+|[\t ]+$/, "", $1);
 210                 gsub(/^[\t ]+|[\t ]+$/, "", $2);
 211         }
 212
 213         # skip comments and empty lines
 214         /^[;#]|^ *$/ { next }
 215
 216         /^[ \t]*\[.*\][ \t]*$/ {
 217                 match($0, /\[.*\]/);
 218                 section = substr($0, RSTART + 1, RSTART + RLENGTH - 3);
 219                 next;
 220         }
 221
 222         section == "mysqld" {
 223                 if ($1 == "datadir") {
 224                         printf("MYSQL_DATA_DIR=%s;", $2);
 225                 } else if ($1 == "user") {
 226                         printf("MYSQL_USER=%s;", $2);
 227                 } else if ($1 == "pid-file") {
 228                         printf("MYSQL_PIDFILE=%s;", $2);
 229                 } else if ($1 == "socket") {
 230                         printf("MYSQL_SOCKET=%s;", $2);
 231                 } else if ($1 == "port") {
 232                         printf("MYSQL_PORT=%s;", $2);
 233                 } else if ($1 == "bind-address") {
 234                         printf("MYSQL_BIND_ADDRESS=%s;", $2);
 235                 } else if ($1 == "skip-networking") {
 236                         printf("MYSQL_SKIP_NETWORKING=1;");
 237                 } else if ($1 == "log-error") {
 238                         printf("MYSQL_LOG_ERROR=%s;", $2);
 239                 }
 240         }
 241         ' $config_file`
 242
 243         # error log not defined in config file. add one
 244         if [ -z "$MYSQL_LOG_ERROR" ]; then
 245                 MYSQL_LOG_ERROR=$MYSQL_ERRLOG
 246         else
 247                 # unset, so mysqld would use value from config itself
 248                 unset MYSQL_LOG_ERROR
 249         fi
 250
 251         if is_yes "$MYSQL_RA_COMPAT"; then
 252                 MYSQL_DATA_DIR_SUB=""
 253         else
 254                 MYSQL_DATA_DIR_SUB="/mysqldb"
 255         fi
 256
 257         if [ -z "$MYSQL_DATA_DIR" -o "$MYSQL_DATA_DIR" != "${clusterdir}${MYSQL_DATA_DIR_SUB}/db" ]; then
 258                 nls "Error: datadir specified in %s should be %s" "$config_file" "$clusterdir${MYSQL_DATA_DIR_SUB}/db"
 259                 nls " percona-server can't be run."
 260                 exit 6
 261         fi
 262
 263         if [ -z "$MYSQL_PIDFILE" -o "$MYSQL_PIDFILE" != "$clusterdir${MYSQL_DATA_DIR_SUB}/mysql.pid" ]; then
 264                 nls "Error: pid-file specified in %s should be %s" "$config_file" "$clusterdir${MYSQL_DATA_DIR_SUB}/mysql.pid"
 265                 nls " percona-server can't be run."
 266                 exit 6
 267         fi
 268
 269         if [ -z "$MYSQL_USER" ]; then
 270                 echo "$(nls 'percona-server user not configured properly')"'!' >&2
 271                 nls "Edit %s and configure it." "$config_file" >&2
 272                 exit 6
 273         fi
 274 }
 275
 276 # start mysql
 277 mysqlstart() {
 278         local clusterdir="$1"
 279         mysqlgetconfig "$clusterdir"
 280         if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
 281                 nls "percona-server cluster %s not initialized." "$clusterdir"
 282                 nls "Try \`%s init %s' before start." "$0" "$clusterdir"
 283                 exit 6
 284         fi
 285
 286         msg_starting "percona-server $clusterdir"; busy
 287         [ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0
 288         rm -f "$MYSQL_PIDFILE"
 289
 290
 291         TMPDIR=/tmp nice -n ${SERVICE_RUN_NICE_LEVEL:-$DEFAULT_SERVICE_RUN_NICE_LEVEL} \
 292                 /usr/bin/setsid /usr/sbin/mysqld \
 293                         --defaults-file=$MYSQL_CONFIG \
 294                         --datadir=$MYSQL_DATA_DIR \
 295                         --pid-file=$MYSQL_PIDFILE \
 296                         ${MYSQL_LOG_ERROR:+--log-error="$MYSQL_LOG_ERROR"} \
 297                         $MYSQL_OPTIONS &
 298         pid=$!
 299
 300         sleep 0.1
 301         mysqlstatus "$clusterdir" start
 302         # it takes longer for mysqld to start and create pidfile if it has to recover innodb transactions
 303         if [ "$MYSQL_STATUS" = "starting" ]; then
 304                 echo ""
 305                 show "Waiting for percona-server to start"
 306                 busy
 307
 308                 # while the pid is running, mysql is starting up
 309                 # if the pidfile was created, it started up successfully
 310                 # if either case fails we break and report status
 311                 while true; do
 312                         [ -d /proc/$pid ] || break
 313                         [ -f "$MYSQL_PIDFILE" ] && break
 314                         sleep 0.2
 315                 done
 316         fi
 317
 318         mysqlstatus "$clusterdir" start
 319         if [ "$MYSQL_STATUS" = "running" -a "$MYSQL_PID" != "unknown" ]; then
 320                 ok
 321         elif [ "$MYSQL_STATUS" = "died" ]; then
 322                 RETVAL=1
 323                 died
 324         else
 325                 RETVAL=1
 326                 fail
 327         fi
 328 }
 329
 330 # stop mysql
 331 mysqlstop() {
 332         local clusterdir="$1"
 333         mysqlstatus "$clusterdir" stop
 334         msg_stopping "percona-server $clusterdir"
 335         busy
 336
 337         # try graceful shutdown -- send shutdown command
 338         # requires mysql_sysadmin user proper privs
 339         /usr/bin/mysqladmin --defaults-file=$MYSQL_CONFIG ${MYSQL_SOCKET:+--socket=$MYSQL_SOCKET} shutdown >/dev/null 2>&1
 340         mysqlstatus "$clusterdir" stop
 341
 342         if [ "$MYSQL_PID" != "unknown" ]; then
 343                 kill -TERM "$MYSQL_PID" 2> /dev/null
 344                 for nr in $(seq 1 $(($MYSQL_STOP_WAIT_TIME*10))); do
 345                         [ -d "/proc/$MYSQL_PID" ] || break
 346                         sleep 0.1
 347                 done
 348         fi
 349
 350         mysqlstatus "$clusterdir" stop
 351         if [ "$MYSQL_STATUS" = "died" ]; then
 352                 died
 353         elif [ "$MYSQL_STATUS" = "running" -o "$MYSQL_STATUS" = "starting" ]; then
 354                 fail
 355         else
 356                 ok
 357         fi
 358 }
 359
 360 # report slave status
 361 # uses MYSQL_SOCKET - path to mysql socket
 362 slave_status() {
 363         if [ ! -x /usr/bin/mysql ]; then
 364                 echo >&2 "Slave status not available: 'mysql' program not installed."
 365                 return
 366         fi
 367
 368         # see if slave status can be reported
 369         local err=0 slave_status=$(mysql --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" -e 'show slave status\G')
 370         if [ -z "$slave_status" ]; then
 371                 # slave not setup
 372                 return
 373         fi
 374
 375         printf "Slave Status:\n"
 376
 377         set -f
 378         eval $(echo "$slave_status" | awk -F': ' '/^ *[A-Za-z_]+:/{
 379                 k = tolower($1);
 380                 v = substr($0, length($1) + 3);
 381                 gsub(/\\/, "\\\\\\", v);
 382                 gsub(/"/, "\\\"", v);
 383                 gsub(/`/, "\\`", v);
 384                 gsub(/\$/, "\\$", v);
 385                 gsub(/\$/, "\\$", v);
 386                 printf("%s=\"%s\";\n", k, v);
 387         }')
 388         set +f
 389
 390         if [ "$slave_io_running" != "Yes" ]; then
 391                 printf "\tSlave IO not running\n"
 392                 err=1
 393         fi
 394         if [ "$slave_sql_running" != "Yes" ]; then
 395                 printf "\tSlave SQL not running\n"
 396                 err=1
 397         fi
 398
 399         if [ "$err" = 1 -a "$last_errno" -gt 0 ]; then
 400                 printf "\tERROR %s: %s\n" "$last_errno" "$last_error"
 401         fi
 402
 403         if [ "$master_log_file" != "$relay_master_log_file" ]; then
 404                 printf "\tERROR logfile mismatch (%s)\n" "$relay_master_log_file"
 405                 err=1
 406         fi
 407
 408         if [ -z "$read_master_log_pos" -o -z "$exec_master_log_pos" ]; then
 409                 printf "\tERROR No info about master\n"
 410                 err=1
 411                 return
 412         fi
 413
 414         diff=$(($read_master_log_pos - $exec_master_log_pos))
 415         printf "\tread pos: %s (%s) (host: %s:%d)\n" "$read_master_log_pos" "$master_log_file" "$master_host" "$master_port"
 416         printf "\texec pos: %s\n" "$exec_master_log_pos"
 417         printf "\tdiff: %s\n" "$diff"
 418 }
 419
 420 #
 421 # check for running mysql instances; if any instance is running then
 422 # create subsys lock file
 423 #
 424 mysqlsubsys() {
 425         # check for every defined db cluster in sysconfig file
 426         for mysqldir in $DB_CLUSTERS; do
 427                 mysqlstatus "$mysqldir"
 428                 if [ "$MYSQL_STATUS" = "running" ]; then
 429                         touch /var/lock/subsys/percona-server
 430                         return
 431                 fi
 432         done
 433         rm -f /var/lock/subsys/percona-server
 434 }
 435
 436 mysqlinit() {
 437         local clusterdir="$1"
 438
 439         if [ -f /etc/mysqld.conf ]; then
 440                 nls "Running in \`no cluster compat' mode: can't initialize database."
 441                 nls "Move /etc/mysqld.conf away and rerun \`$0 init' (new config will be in $clusterdir)."
 442                 exit 1
 443         fi
 444
 445         if [ -f "$clusterdir/mysqld.conf" ]; then
 446                 mysqlgetconfig "$clusterdir"
 447         else
 448                 MYSQL_USER="mysql"
 449                 MYSQL_CLUSTER_DIR="$clusterdir"
 450                 MYSQL_DATA_DIR="$clusterdir/mysqldb/db"
 451                 MYSQL_PIDFILE="$clusterdir/mysqldb/mysql.pid"
 452                 MYSQL_SOCKET="$clusterdir/mysqldb/mysql.sock"
 453
 454                 # this $MYSQL_CONFIG will be created later
 455                 MYSQL_CONFIG="$MYSQL_CLUSTER_DIR/mysqld.conf"
 456         fi
 457
 458         show "Initializing percona-server cluster %s" "$clusterdir"; started
 459
 460         # Check if not exist init database
 461         if [ -d "$MYSQL_DATA_DIR/percona-server" ]; then
 462                 nls "Seems that database is initialized now. Remove by hand %s" "$MYSQL_DATA_DIR/percona-server"
 463                 nls "before initializing database."
 464                 nls "For now skipping cluster %s." "$clusterdir"
 465                 exit 6
 466         fi
 467
 468         show "Installing percona-server system tables for $MYSQL_DATA_DIR"
 469         busy
 470         TMP=/tmp TMPDIR=/tmp
 471
 472         mkdir -p "$MYSQL_DATA_DIR" > /dev/null 2>&1
 473         # Using mysql:mysql for MYSQL_CLUSTER_DIR is creating SECURITY hole, root:root is proper
 474         chown root:root "$MYSQL_CLUSTER_DIR"
 475         chown mysql:mysql "$MYSQL_CLUSTER_DIR/mysqldb" "$MYSQL_DATA_DIR" > /dev/null 2>&1
 476         chmod 751 "$MYSQL_CLUSTER_DIR" "$MYSQL_CLUSTER_DIR/mysqldb"
 477
 478         if [ -f $sharedir/mysqld.conf -a ! -f "$MYSQL_CLUSTER_DIR/mysqld.conf" ]; then
 479                 sed -e "
 480                         s#\(datadir.*\)=.*#\1= $MYSQL_DATA_DIR#g;
 481                         s#\(pid-file.*\)=.*#\1= $MYSQL_PIDFILE#g;
 482                         s#\(socket.*\)=.*#\1= $MYSQL_SOCKET#g;
 483                         s#@clusterdir@#$MYSQL_CLUSTER_DIR#g;
 484                 " $sharedir/mysqld.conf > "$MYSQL_CLUSTER_DIR/mysqld.conf"
 485                 chown root:root "$MYSQL_CLUSTER_DIR/mysqld.conf"
 486                 chmod 640 "$MYSQL_CLUSTER_DIR/mysqld.conf"
 487         fi
 488
 489         ok=0
 490         /usr/sbin/mysqld \
 491                 --defaults-file=$MYSQL_CLUSTER_DIR/mysqld.conf \
 492                 --initialize-insecure \
 493                 --user=mysql \
 494                 --skip-grant-tables \
 495                 --datadir=$MYSQL_DATA_DIR \
 496                 --user=$MYSQL_USER \
 497                 --slave-load-tmpdir=$MYSQL_DATA_DIR \
 498                 --tmpdir=$MYSQL_DATA_DIR \
 499                 --log-error=$MYSQL_ERRLOG && ok=1
 500         [ -f $MYSQL_DATA_DIR/mysql/user.frm ] || ok=0
 501
 502         if [ "$ok" = 1 ]; then
 503                 ok
 504                 cat << END_OF_MSG
 505
 506 PLEASE REMEMBER TO SET A PASSWORD FOR THE percona-server USERS!
 507 This is done, after starting database, in the order shown below,
 508 with:
 509
 510 Add 'mysql_sysadmin' user (RELOAD and SHUTDOWN privileges):
 511 echo "CREATE USER 'mysql_sysadmin'@'localhost' IDENTIFIED BY 'SOME_RANDOM_PASSWORD'; FLUSH PRIVILEGES;" | mysql --ssl-mode=DISABLED -u root -S $MYSQL_SOCKET
 512 echo "GRANT RELOAD, SHUTDOWN ON *.* TO 'mysql_sysadmin'@'localhost'; FLUSH PRIVILEGES;" | mysql --ssl-mode=DISABLED -u root -S $MYSQL_SOCKET
 513
 514 Set password for root user (ALL privileges, DB admin):
 515 echo "ALTER USER 'root'@'localhost' IDENTIFIED BY 'newpassword'; FLUSH PRIVILEGES;" | mysql --ssl-mode=DISABLED -u root -S $MYSQL_SOCKET
 516
 517 NOTE: mysql_sysadmin password should be placed to $MYSQL_CONFIG in
 518 mysqladmin section. See the manual for more instructions.
 519 (This user is used at logs rotation and server shutdown)
 520
 521 END_OF_MSG
 522         else
 523                 fail
 524                 cat << END_OF_MSG
 525 ERROR:
 526 ERROR:
 527 ERROR: Initialization of server FAILED!
 528 ERROR:
 529 ERROR:
 530
 531 Examine the logs in /var/log/percona-server for more information. You can
 532 also try to start the mysqld daemon with:
 533
 534 /usr/sbin/mysqld --skip-grant &
 535
 536 You can use the command line tool mysql to connect to the mysql
 537 database and look at the grant tables:
 538
 539 shell> mysql -u root mysql
 540 mysql> show tables
 541
 542 Try 'mysqld --help' if you have problems with paths. Setting on
 543 logging in $MYSQL_DATA_DIR/mysqld.conf gives you a log in /var/log/percona-server/query.log that
 544 may be helpful. The latest information about percona-server is available on the
 545 web at https://www.percona.com/software/mysql-database/percona-server.
 546
 547 Please check PLD Linux ftp site for newer versions of this package.
 548
 549 Please consult the percona-server manual section: 'Problems running
 550 mysql_install_db', and the manual section that describes problems on
 551 your OS. Another information source is the percona-server email archive.
 552
 553 END_OF_MSG
 554                 exit 1
 555         fi
 556
 557         # if it's first server, register as default
 558         if [ ! -e /var/lib/mysql/mysql.sock ] || [ -L /var/lib/mysql/mysql.sock ] && [ -z "$(readlink /var/lib/mysql/mysql.sock)" ]; then
 559                 sock=${MYSQL_SOCKET#/var/lib/mysql/} # make it relative if possible
 560                 ln -s "$sock" /var/lib/mysql/mysql.sock
 561         fi
 562         # same for config, move to /etc
 563         if [ ! -e /etc/percona-server/mysqld.conf ]; then
 564                 mv "$MYSQL_CLUSTER_DIR/mysqld.conf" /etc/percona-server/mysqld.conf
 565         fi
 566 }
 567
 568 #
 569 # End of useful functions.
 570 #
 571
 572 start() {
 573         local mysqldir
 574         for mysqldir in $DB_CLUSTERS; do
 575                 mysqlstatus "$mysqldir" start
 576                 if [ "$MYSQL_STATUS" = "running" ]; then
 577                         msg_already_running "percona-server $mysqldir"
 578                 else
 579                         mysqlstart "$mysqldir"
 580                 fi
 581         done
 582         mysqlsubsys
 583 }
 584
 585 stop() {
 586         local mysqldir
 587         for mysqldir in $DB_CLUSTERS; do
 588                 mysqlstatus "$mysqldir" stop
 589                 if [ "$MYSQL_STATUS" = "not running" ]; then
 590                         msg_not_running "percona-server $mysqldir"
 591                 else
 592                         mysqlstop "$mysqldir"
 593                 fi
 594         done
 595         mysqlsubsys
 596 }
 597
 598 condrestart() {
 599         if [ ! -f /var/lock/subsys/percona-server ]; then
 600                 msg_not_running "percona-server"
 601                 RETVAL=$1
 602                 return
 603         fi
 604
 605         stop
 606         start
 607 }
 608
 609 status() {
 610         local mysqldir addr port socket pid pids running datadir
 611         RETVAL=3
 612         for mysqldir in $DB_CLUSTERS; do
 613                 mysqlstatus "$mysqldir"
 614                 if [ "$MYSQL_STATUS" = "running" ]; then
 615                         RETVAL=0
 616                         addr=${MYSQL_BIND_ADDRESS:-0.0.0.0}
 617                         port=${MYSQL_PORT:-3306}
 618                         socket=${MYSQL_SOCKET:-/var/lib/mysql/mysql.sock}
 619                         pid=$MYSQL_PID
 620                         nls "percona-server cluster %s, pid %s\n" "$mysqldir" "$pid"
 621                         [ -z "$MYSQL_SKIP_NETWORKING" ] && nls "\ttcp:%s:%s\n" "$addr" "$port"
 622                         nls "\tunix: %s\n" "$socket"
 623
 624                         MYSQL_SOCKET=$socket slave_status
 625
 626                         pids="$pids/$MYSQL_PID/"
 627                         progress "$MYSQL_STATUS"
 628                 else
 629                         show "percona-server cluster %s" "$mysqldir"
 630                         progress "$MYSQL_STATUS" "$CFAIL"
 631                 fi
 632                 echo
 633         done
 634
 635         for pid in $(/sbin/pidof mysqld); do
 636                 if [[ $pids != */$pid/* ]]; then
 637                         running="$running $pid"
 638                 fi
 639         done
 640
 641         if [ $# = 1 -a "$running" ]; then
 642                 nls "Warning: percona-server Daemon processes not under clusters.conf control:"
 643                 # see if we can display their status
 644                 for pid in $running; do
 645                         datadir=$(cat /proc/$pid/cmdline | tr '\0' '\n' | fgrep -- --datadir=)
 646                         datadir=${datadir#--datadir=} # strip --datadir
 647                         mysqldir=${datadir%/mysqldb/db} # strip /mysqldb/db
 648                         mysqlstatus "$mysqldir"
 649                         if [ "$MYSQL_STATUS" = "running" ]; then
 650                                 addr=${MYSQL_BIND_ADDRESS:-0.0.0.0}
 651                                 port=${MYSQL_PORT:-3306}
 652                                 socket=${MYSQL_SOCKET:-/var/lib/mysql/mysql.sock}
 653                                 nls "percona-server cluster %s, pid %s\n" "$mysqldir" "$pid"
 654                                 [ -z "$MYSQL_SKIP_NETWORKING" ] && nls "\ttcp:%s:%s\n" "$addr" "$port"
 655                                 nls "\tunix: %s\n" "$socket"
 656
 657                                 MYSQL_SOCKET=$socket slave_status
 658
 659                                 progress "$MYSQL_STATUS"
 660                         else
 661                                 show "percona-server cluster %s" "$mysqldir"
 662                                 progress "$MYSQL_STATUS" "$CFAIL"
 663                         fi
 664                         echo
 665                 done
 666         fi
 667 }
 668
 669 RETVAL=0
 670 case "$action" in
 671   start)
 672         start
 673         ;;
 674   stop)
 675         stop
 676         ;;
 677   restart)
 678         stop
 679         start
 680         ;;
 681   try-restart)
 682         condrestart 0
 683         ;;
 684   force-reload)
 685         condrestart 7
 686         ;;
 687   init)
 688         for mysqldir in $DB_CLUSTERS; do
 689                 mysqlinit "$mysqldir"
 690         done
 691         exit $?
 692         ;;
 693   flush-logs)
 694         for mysqldir in $DB_CLUSTERS; do
 695                 mysqlgetconfig "$mysqldir"
 696                 # just if mysqld is really running
 697                 if /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" ping >/dev/null 2>&1; then
 698                         /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" flush-logs
 699                 fi
 700         done
 701         ;;
 702   status)
 703         status
 704         ;;
 705   *)
 706         msg_usage "$0 {start|stop|restart|try-restart|force-reload|init|flush-logs|status}"
 707         exit 3
 708 esac
 709
 710 exit $RETVAL