3 # mysql A very fast and reliable SQL database engine
5 # chkconfig: 2345 84 25
7 # description: A very fast and reliable SQL database engine.
9 # Source function library
10 . /etc/rc.d/init.d/functions
13 . /etc/sysconfig/network
16 if [ -f /etc/sysconfig/mysql ]; then
17 . /etc/sysconfig/mysql
19 nls "Error: %s not found" /etc/sysconfig/mysql
20 nls "%s can't be run." MySQL
24 if [ -n "$MYSQL_DB_CLUSTERS" ]; then
25 nls "Warning: MYSQL_DB_CLUSTERS is set. It's obsolete. Use %s instead." /etc/mysql/clusters.conf
28 if [ -f /etc/mysql/clusters.conf ]; then
29 MYSQL_DB_CLUSTERS=$(awk -F= '!/^#/ && /=/{print $2}' /etc/mysql/clusters.conf)
30 if [ -z "$MYSQL_DB_CLUSTERS" ]; then
31 nls "Warning: there are no configured clusters."
35 nls "Warning: Missing clusters config file %s" /etc/mysql/clusters.conf
36 if [ -z "$MYSQL_DB_CLUSTERS" ]; then
37 nls "Warning: there are no configured clusters."
38 nls "Using default cluster /var/lib/mysql (compatibility mode)"
39 MYSQL_DB_CLUSTERS=/var/lib/mysql
44 # Check that networking is up
45 if is_yes "${NETWORKING}"; then
46 if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status -a "$1" != init ]; then
47 msg_network_down MySQL
56 # any db cluster as command line argument?
59 # perform action for specified clusters only
61 # try auto resolving from /etc/mysql/clusters.conf
62 if [[ "$a" != /* ]]; then
63 m=$(awk -va="$a" -F= 'substr($0, 1, length(a)) == a {print $1}' /etc/mysql/clusters.conf)
65 echo >&2 "Cluster name '$a' did not match anything!"
68 if [ $(echo "$m" | wc -l) -gt 1 ]; then
69 echo >&2 "Cluster name '$a' ambiguous:" $m
72 a=$(awk -va="$a" -F= 'substr($0, 1, length(a)) == a {print $2}' /etc/mysql/clusters.conf)
74 DB_CLUSTERS="$DB_CLUSTERS $a"
77 DB_CLUSTERS="$MYSQL_DB_CLUSTERS"
80 # global error log, if mysqld.conf hasn't migrated to log-error style
81 MYSQL_ERRLOG=/var/log/mysql/mysqld.log
82 MYSQL_STOP_WAIT_TIME=${MYSQL_STOP_WAIT_TIME:-900}
89 # check for mysql status
96 # MYSQL_STATUS = starting | running | not running | died
97 # MYSQL_PID = pid of mysqld process
103 mysqlgetconfig "$clusterdir" status
105 MYSQL_STATUS="not running"
110 if [ -f "$MYSQL_PIDFILE" ]; then
111 MYSQL_PIDFILE_PID=$(cat "$MYSQL_PIDFILE")
114 if [ -n "$MYSQL_PIDFILE_PID" ]; then
115 MYSQL_PID=$MYSQL_PIDFILE_PID
116 if [ ! -d "/proc/$MYSQL_PID" ]; then
119 elif (grep -qa "$MYSQL_PIDFILE" /proc/$MYSQL_PID/cmdline 2> /dev/null); then
120 MYSQL_STATUS="running"
125 if [ "$mode" = "start" ]; then
126 MYSQL_GREP_PID=$(grep -lE "^/usr/sbin/mysqld.*${MYSQL_PIDFILE}" /proc/[0-9]*/cmdline 2> /dev/null | awk -F "/" '{ print $3; exit; }')
127 if [ -n "$MYSQL_GREP_PID" ]; then
128 MYSQL_PID=$MYSQL_GREP_PID
129 if grep -qa "$MYSQL_PIDFILE" /proc/$MYSQL_PID/cmdline 2> /dev/null; then
130 if [ -f "$MYSQL_PIDFILE" ]; then
131 MYSQL_PIDFILE_PID=$(cat "$MYSQL_PIDFILE")
133 if [ -n "$MYSQL_PIDFILE_PID" ]; then
134 MYSQL_PID=$MYSQL_PIDFILE_PID
135 MYSQL_STATUS="running"
138 MYSQL_STATUS="starting"
145 # else default, "not running"
148 # get mysql configuration in variables
149 # MYSQL_CONFIG MYSQL_CLUSTER_DIR
150 # MYSQL_DATA_DIR MYSQL_USER MYSQL_PIDFILE MYSQL_SOCKET MYSQL_PORT MYSQL_BIND_ADDRESS MYSQL_SKIP_NETWORKING MYSQL_LOG_ERROR
154 # $2 - status | other
157 local clusterdir="$1" config_file
160 # emulate old behaviour if only one cluster specified
161 if [ "$clusterdir" = "$MYSQL_DB_CLUSTERS" -a "$clusterdir" = "/var/lib/mysql" -a -f /etc/mysqld.conf ]; then
163 config_file=/etc/mysqld.conf
165 local config=$(awk -F= -vclusterdir="$clusterdir" '!/^#/{ if (clusterdir == $2) print $1}' /etc/mysql/clusters.conf)
166 if [[ $config = /* ]]; then
167 config_file="$config"
168 elif [ -f "/etc/mysql/$config" ]; then
169 config_file="/etc/mysql/$config"
171 config_file="$clusterdir/mysqld.conf"
175 MYSQL_CLUSTER_DIR="$clusterdir"
177 if [ -z "$config_file" ]; then
178 nls "Error: Can't find config file for %s cluster" "$clusterdir"
179 if [ "$mode" = "status" ]; then
185 MYSQL_CONFIG="$config_file"
188 if [ ! -f "$config_file" ]; then
189 nls "Error: config file %s not found" "$config_file"
190 nls "MySQL can't be run. Did you initialize DB by doing \`$0 init'?"
191 if [ "$mode" = "status" ]; then
198 # reset to initial state
199 MYSQL_DATA_DIR= MYSQL_USER= MYSQL_PIDFILE= MYSQL_SOCKET= MYSQL_PORT= MYSQL_BIND_ADDRESS= MYSQL_SKIP_NETWORKING= MYSQL_LOG_ERROR=
207 gsub(/^[\t ]+|[\t ]+$/, "", $1);
208 gsub(/^[\t ]+|[\t ]+$/, "", $2);
211 # skip comments and empty lines
212 /^[;#]|^ *$/ { next }
214 /^[ \t]*\[.*\][ \t]*$/ {
216 section = substr($0, RSTART + 1, RSTART + RLENGTH - 3);
220 section == "mysqld" {
221 if ($1 == "datadir") {
222 printf("MYSQL_DATA_DIR=%s;", $2);
223 } else if ($1 == "user") {
224 printf("MYSQL_USER=%s;", $2);
225 } else if ($1 == "pid-file") {
226 printf("MYSQL_PIDFILE=%s;", $2);
227 } else if ($1 == "socket") {
228 printf("MYSQL_SOCKET=%s;", $2);
229 } else if ($1 == "port") {
230 printf("MYSQL_PORT=%s;", $2);
231 } else if ($1 == "bind-address") {
232 printf("MYSQL_BIND_ADDRESS=%s;", $2);
233 } else if ($1 == "skip-networking") {
234 printf("MYSQL_SKIP_NETWORKING=1;");
235 } else if ($1 == "log-error") {
236 printf("MYSQL_LOG_ERROR=%s;", $2);
241 # error log not defined in config file. add one
242 if [ -z "$MYSQL_LOG_ERROR" ]; then
243 MYSQL_LOG_ERROR=$MYSQL_ERRLOG
245 # unset, so mysqld would use value from config itself
246 unset MYSQL_LOG_ERROR
249 if is_yes "$MYSQL_RA_COMPAT"; then
250 MYSQL_DATA_DIR_SUB=""
252 MYSQL_DATA_DIR_SUB="/mysqldb"
255 if [ -z "$MYSQL_DATA_DIR" -o "$MYSQL_DATA_DIR" != "${clusterdir}${MYSQL_DATA_DIR_SUB}/db" ]; then
256 nls "Error: datadir specified in %s should be %s" "$config_file" "$clusterdir${MYSQL_DATA_DIR_SUB}/db"
257 nls " MySQL can't be run."
261 if [ -z "$MYSQL_PIDFILE" -o "$MYSQL_PIDFILE" != "$clusterdir${MYSQL_DATA_DIR_SUB}/mysql.pid" ]; then
262 nls "Error: pid-file specified in %s should be %s" "$config_file" "$clusterdir${MYSQL_DATA_DIR_SUB}/mysql.pid"
263 nls " MySQL can't be run."
267 if [ -z "$MYSQL_USER" ]; then
268 echo "$(nls 'MySQL user not configured properly')"'!' >&2
269 nls "Edit %s and configure it." "$config_file" >&2
276 local clusterdir="$1"
277 mysqlgetconfig "$clusterdir"
278 if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
279 nls "MySQL cluster %s not initialized." "$clusterdir"
280 nls "Try \`%s init %s' before start." "$0" "$clusterdir"
284 msg_starting "MySQL $clusterdir"; busy
285 [ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0
286 rm -f "$MYSQL_PIDFILE"
289 TMPDIR=/tmp nice -n ${SERVICE_RUN_NICE_LEVEL:-$DEFAULT_SERVICE_RUN_NICE_LEVEL} \
290 /usr/bin/setsid /usr/sbin/mysqld \
291 --defaults-file=$MYSQL_CONFIG \
292 --datadir=$MYSQL_DATA_DIR \
293 --pid-file=$MYSQL_PIDFILE \
294 ${MYSQL_LOG_ERROR:+--log-error="$MYSQL_LOG_ERROR"} \
299 mysqlstatus "$clusterdir" start
300 # it takes longer for mysqld to start and create pidfile if it has to recover innodb transactions
301 if [ "$MYSQL_STATUS" = "starting" ]; then
303 show "Waiting for MySQL to start"
306 # while the pid is running, mysql is starting up
307 # if the pidfile was created, it started up successfully
308 # if either case fails we break and report status
310 [ -d /proc/$pid ] || break
311 [ -f "$MYSQL_PIDFILE" ] && break
316 mysqlstatus "$clusterdir" start
317 if [ "$MYSQL_STATUS" = "running" -a "$MYSQL_PID" != "unknown" ]; then
319 elif [ "$MYSQL_STATUS" = "died" ]; then
330 local clusterdir="$1"
331 mysqlstatus "$clusterdir" stop
332 msg_stopping "MySQL $clusterdir"
335 # try graceful shutdown -- send shutdown command
336 # requires mysql_sysadmin user proper privs
337 /usr/bin/mysqladmin --defaults-file=$MYSQL_CONFIG ${MYSQL_SOCKET:+--socket=$MYSQL_SOCKET} shutdown >/dev/null 2>&1
338 mysqlstatus "$clusterdir" stop
340 if [ "$MYSQL_PID" != "unknown" ]; then
341 kill -TERM "$MYSQL_PID" 2> /dev/null
342 for nr in $(seq 1 $(($MYSQL_STOP_WAIT_TIME*10))); do
343 [ -d "/proc/$MYSQL_PID" ] || break
348 mysqlstatus "$clusterdir" stop
349 if [ "$MYSQL_STATUS" = "died" ]; then
351 elif [ "$MYSQL_STATUS" = "running" -o "$MYSQL_STATUS" = "starting" ]; then
358 # report slave status
359 # uses MYSQL_SOCKET - path to mysql socket
361 # see if slave status can be reported
362 local err=0 slave_status=$(mysql --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" -e 'show slave status\G')
363 if [ -z "$slave_status" ]; then
368 printf "Slave Status:\n"
371 eval $(echo "$slave_status" | awk -F': ' '/^ *[A-Za-z_]+:/{
373 v = substr($0, length($1) + 3);
374 gsub(/\\/, "\\\\\\", v);
375 gsub(/"/, "\\\"", v);
377 gsub(/\$/, "\\$", v);
378 gsub(/\$/, "\\$", v);
379 printf("%s=\"%s\";\n", k, v);
383 if [ "$slave_io_running" != "Yes" ]; then
384 printf "\tSlave IO not running\n"
387 if [ "$slave_sql_running" != "Yes" ]; then
388 printf "\tSlave SQL not running\n"
392 if [ "$err" = 1 -a "$last_errno" -gt 0 ]; then
393 printf "\tERROR %s: %s\n" "$last_errno" "$last_error"
396 if [ "$master_log_file" != "$relay_master_log_file" ]; then
397 printf "\tERROR logfile mismatch (%s)\n" "$relay_master_log_file"
401 if [ -z "$read_master_log_pos" -o -z "$exec_master_log_pos" ]; then
402 printf "\tERROR No info about master\n"
407 diff=$(($read_master_log_pos - $exec_master_log_pos))
408 printf "\tread pos: %s (%s) (host: %s:%d)\n" "$read_master_log_pos" "$master_log_file" "$master_host" "$master_port"
409 printf "\texec pos: %s\n" "$exec_master_log_pos"
410 printf "\tdiff: %s\n" "$diff"
414 # check for running mysql instances; if any instance is running then
415 # create subsys lock file
418 # check for every defined db cluster in sysconfig file
419 for mysqldir in $DB_CLUSTERS; do
420 mysqlstatus "$mysqldir"
421 if [ "$MYSQL_STATUS" = "running" ]; then
422 touch /var/lock/subsys/mysql
426 rm -f /var/lock/subsys/mysql
430 local clusterdir="$1"
432 if [ -f /etc/mysqld.conf ]; then
433 nls "Running in \`no cluster compat' mode: can't initialize database."
434 nls "Move /etc/mysqld.conf away and rerun \`$0 init' (new config will be in $clusterdir)."
438 if [ -f "$clusterdir/mysqld.conf" ]; then
439 mysqlgetconfig "$clusterdir"
442 MYSQL_CLUSTER_DIR="$clusterdir"
443 MYSQL_DATA_DIR="$clusterdir/mysqldb/db"
444 MYSQL_PIDFILE="$clusterdir/mysqldb/mysql.pid"
445 MYSQL_SOCKET="$clusterdir/mysqldb/mysql.sock"
447 # this $MYSQL_CONFIG will be created later
448 MYSQL_CONFIG="$MYSQL_CLUSTER_DIR/mysqld.conf"
451 show "Initializing cluster %s" "$clusterdir"; started
453 # Check if not exist init database
454 if [ -d "$MYSQL_DATA_DIR/mysql" ]; then
455 nls "Seems that database is initialized now. Remove by hand %s" "$MYSQL_DATA_DIR/mysql"
456 nls "before initializing database."
457 nls "For now skipping cluster %s." "$clusterdir"
461 show "Installing MySQL system tables for $MYSQL_DATA_DIR"
465 mkdir -p "$MYSQL_DATA_DIR" > /dev/null 2>&1
466 # Using mysql:mysql for MYSQL_CLUSTER_DIR is creating SECURITY hole, root:root is proper
467 chown root:root "$MYSQL_CLUSTER_DIR"
468 chown mysql:mysql "$MYSQL_CLUSTER_DIR/mysqldb" "$MYSQL_DATA_DIR" > /dev/null 2>&1
469 chmod 751 "$MYSQL_CLUSTER_DIR" "$MYSQL_CLUSTER_DIR/mysqldb"
471 if [ -f /usr/share/mysql/mysqld.conf -a ! -f "$MYSQL_CLUSTER_DIR/mysqld.conf" ]; then
473 s#\(datadir.*\)=.*#\1= $MYSQL_DATA_DIR#g;
474 s#\(pid-file.*\)=.*#\1= $MYSQL_PIDFILE#g;
475 s#\(socket.*\)=.*#\1= $MYSQL_SOCKET#g;
476 s#@clusterdir@#$MYSQL_CLUSTER_DIR#g;
477 " /usr/share/mysql/mysqld.conf > "$MYSQL_CLUSTER_DIR/mysqld.conf"
478 chown root:root "$MYSQL_CLUSTER_DIR/mysqld.conf"
479 chmod 640 "$MYSQL_CLUSTER_DIR/mysqld.conf"
482 if [ ! -e /var/lib/mysql/mysql.sock ] || [ -L /var/lib/mysql/mysql.sock ] && [ -z "$(readlink /var/lib/mysql/mysql.sock)" ]; then
483 sock=${MYSQL_SOCKET#/var/lib/mysql/} # make it relative if possible
484 ln -s "$sock" /var/lib/mysql/mysql.sock
487 cat > $MYSQL_DATA_DIR/mysql-init.sql <<-EOF
488 CREATE DATABASE mysql;
490 $(cat /usr/share/mysql/mysql_system_tables.sql)
491 $(sed -e "/@current_hostname/d" /usr/share/mysql/mysql_system_tables_data.sql)
496 --defaults-file=$MYSQL_CLUSTER_DIR/mysqld.conf \
498 --skip-grant-tables \
499 --datadir=$MYSQL_DATA_DIR \
501 --slave-load-tmpdir=$MYSQL_DATA_DIR \
502 --tmpdir=$MYSQL_DATA_DIR \
503 --log-error=$MYSQL_ERRLOG \
504 < $MYSQL_DATA_DIR/mysql-init.sql && ok=1
505 [ -f $MYSQL_DATA_DIR/mysql/host.frm ] || ok=0
507 if [ "$ok" = 1 ]; then
508 rm -f $MYSQL_DATA_DIR/mysql-init.sql
512 PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL USERS!
513 This is done, after starting database, in the order shown,
516 For 'mysql_sysadmin' (RELOAD and SHUTDOWN privileges):
517 echo "update mysql.user set password=password('newpassword') where user='mysql_sysadmin'; FLUSH PRIVILEGES;" | mysql -u mysql -S $MYSQL_SOCKET
519 For 'mysql' user (ALL privileges, DB admin):
520 echo "update mysql.user set password=password('newpassword') where user='mysql'; FLUSH PRIVILEGES;" | mysql -u mysql -S $MYSQL_SOCKET
522 NOTE: mysql_sysadmin password should be placed to $MYSQL_CONFIG in
523 mysqladmin section. See the manual for more instructions.
524 (This user is used at logs rotation and server shutdown)
527 show "Filling help tables..."
529 ( echo "use mysql;"; cat /usr/share/mysql/fill_help_tables.sql ) | \
531 --defaults-file=$MYSQL_CLUSTER_DIR/mysqld.conf \
533 --skip-grant-tables \
534 --datadir=$MYSQL_DATA_DIR \
536 --slave-load-tmpdir=$MYSQL_DATA_DIR \
537 --tmpdir=$MYSQL_DATA_DIR \
538 --log-error=$MYSQL_ERRLOG \
540 if [ "$ok" = 1 ]; then
545 WARNING: HELP FILES ARE NOT COMPLETELY INSTALLED!
546 The "HELP" command might not work properly.
555 ERROR: Installation of grant tables FAILED!
559 The initialization SQL script was preserved at $MYSQL_DATA_DIR/mysql-init.sql
561 Examine the logs in /var/log/mysql for more information. You can
562 also try to start the mysqld daemon with:
564 /usr/sbin/mysqld --skip-grant &
566 You can use the command line tool mysql to connect to the mysql
567 database and look at the grant tables:
569 shell> mysql -u mysql mysql
572 Try 'mysqld --help' if you have problems with paths. Setting on
573 logging in $MYSQL_DATA_DIR/mysqld.conf gives you a log in /var/log/mysql/query.log that
574 may be helpful. The latest information about MySQL is available on the
575 web at http://www.mysql.com/.
577 Please check PLD Linux ftp site for newer versions of this package.
579 Please consult the MySQL manual section: 'Problems running
580 mysql_install_db', and the manual section that describes problems on
581 your OS. Another information source is the MySQL email archive.
589 # End of useful functions.
594 for mysqldir in $DB_CLUSTERS; do
595 mysqlstatus "$mysqldir" start
596 if [ "$MYSQL_STATUS" = "running" ]; then
597 msg_already_running "MySQL $mysqldir"
599 mysqlstart "$mysqldir"
607 for mysqldir in $DB_CLUSTERS; do
608 mysqlstatus "$mysqldir" stop
609 if [ "$MYSQL_STATUS" = "not running" ]; then
610 msg_not_running "MySQL $mysqldir"
612 mysqlstop "$mysqldir"
619 if [ ! -f /var/lock/subsys/mysql ]; then
620 msg_not_running "MySQL"
630 local mysqldir addr port socket pid pids running datadir
632 for mysqldir in $DB_CLUSTERS; do
633 mysqlstatus "$mysqldir"
634 if [ "$MYSQL_STATUS" = "running" ]; then
636 addr=${MYSQL_BIND_ADDRESS:-0.0.0.0}
637 port=${MYSQL_PORT:-3306}
638 socket=${MYSQL_SOCKET:-/var/lib/mysql/mysql.sock}
640 nls "MySQL cluster %s, pid %s\n" "$mysqldir" "$pid"
641 [ -z "$MYSQL_SKIP_NETWORKING" ] && nls "\ttcp:%s:%s\n" "$addr" "$port"
642 nls "\tunix: %s\n" "$socket"
644 MYSQL_SOCKET=$socket slave_status
646 pids="$pids/$MYSQL_PID/"
647 progress "$MYSQL_STATUS"
649 show "MySQL cluster %s" "$mysqldir"
650 progress "$MYSQL_STATUS" "$CFAIL"
655 for pid in $(/sbin/pidof mysqld); do
656 if [[ $pids != */$pid/* ]]; then
657 running="$running $pid"
661 if [ $# = 1 -a "$running" ]; then
662 nls "Warning: MySQL Daemon processes not under clusters.conf control:"
663 # see if we can display their status
664 for pid in $running; do
665 datadir=$(cat /proc/$pid/cmdline | tr '\0' '\n' | fgrep -- --datadir=)
666 datadir=${datadir#--datadir=} # strip --datadir
667 mysqldir=${datadir%/mysqldb/db} # strip /mysqldb/db
668 mysqlstatus "$mysqldir"
669 if [ "$MYSQL_STATUS" = "running" ]; then
670 addr=${MYSQL_BIND_ADDRESS:-0.0.0.0}
671 port=${MYSQL_PORT:-3306}
672 socket=${MYSQL_SOCKET:-/var/lib/mysql/mysql.sock}
673 nls "MySQL cluster %s, pid %s\n" "$mysqldir" "$pid"
674 [ -z "$MYSQL_SKIP_NETWORKING" ] && nls "\ttcp:%s:%s\n" "$addr" "$port"
675 nls "\tunix: %s\n" "$socket"
677 MYSQL_SOCKET=$socket slave_status
679 progress "$MYSQL_STATUS"
681 show "MySQL cluster %s" "$mysqldir"
682 progress "$MYSQL_STATUS" "$CFAIL"
708 for mysqldir in $DB_CLUSTERS; do
709 mysqlinit "$mysqldir"
714 for mysqldir in $DB_CLUSTERS; do
715 mysqlgetconfig "$mysqldir"
716 # just if mysqld is really running
717 if /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" ping >/dev/null 2>&1; then
718 /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" flush-logs
726 msg_usage "$0 {start|stop|restart|try-restart|force-reload|init|flush-logs|status}"