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-@mysqlversion@ ]; then
17 . /etc/sysconfig/mysql-@mysqlversion@
19 nls "Error: %s not found" /etc/sysconfig/mysql-@mysqlversion@
20 nls "%s can't be run." MySQL
24 if [ -n "$MYSQL_DB_CLUSTERS" ]; then
25 nls "Warning: MYSQL_DB_CLUSTERS is set. It's obsolete. Use %s instead." /etc/mysql/@mysqlversion@/clusters.conf
28 if [ -f /etc/mysql/@mysqlversion@/clusters.conf ]; then
29 MYSQL_DB_CLUSTERS=$(awk -F= '!/^#/ && /=/{print $2}' /etc/mysql/@mysqlversion@/clusters.conf)
30 if [ -z "$MYSQL_DB_CLUSTERS" ]; then
31 nls "Warning: there are no configured clusters."
35 nls "Warning: Missing clusters config file %s" /etc/mysql/@mysqlversion@/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 "$1" != init ]; then
47 msg_network_down MySQL
54 sharedir=/usr/share/mysql/@mysqlversion@
58 # any db cluster as command line argument?
61 # perform action for specified clusters only
63 # try auto resolving from /etc/mysql/@mysqlversion@/clusters.conf
64 if [[ "$a" != /* ]]; then
65 m=$(awk -va="$a" -F= 'substr($0, 1, length(a)) == a {print $1}' /etc/mysql/@mysqlversion@/clusters.conf)
67 echo >&2 "Cluster name '$a' did not match anything!"
70 if [ $(echo "$m" | wc -l) -gt 1 ]; then
71 echo >&2 "Cluster name '$a' ambiguous:" $m
74 a=$(awk -va="$a" -F= 'substr($0, 1, length(a)) == a {print $2}' /etc/mysql/@mysqlversion@/clusters.conf)
76 DB_CLUSTERS="$DB_CLUSTERS $a"
79 DB_CLUSTERS="$MYSQL_DB_CLUSTERS"
82 # global error log, if mysqld.conf hasn't migrated to log-error style
83 MYSQL_ERRLOG=/var/log/mysql/@mysqlversion@/mysql.log
84 MYSQL_STOP_WAIT_TIME=${MYSQL_STOP_WAIT_TIME:-900}
91 # check for mysql status
98 # MYSQL_STATUS = starting | running | not running | died
99 # MYSQL_PID = pid of mysqld process
105 mysqlgetconfig "$clusterdir" status
107 MYSQL_STATUS="not running"
112 if [ -f "$MYSQL_PIDFILE" ]; then
113 MYSQL_PIDFILE_PID=$(cat "$MYSQL_PIDFILE")
116 if [ -n "$MYSQL_PIDFILE_PID" ]; then
117 MYSQL_PID=$MYSQL_PIDFILE_PID
118 if [ ! -d "/proc/$MYSQL_PID" ]; then
121 elif (grep -qa "$MYSQL_PIDFILE" /proc/$MYSQL_PID/cmdline 2> /dev/null); then
122 MYSQL_STATUS="running"
127 if [ "$mode" = "start" ]; then
128 MYSQL_GREP_PID=$(grep -alE "^@mysqlsbindir@/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")
135 if [ -n "$MYSQL_PIDFILE_PID" ]; then
136 MYSQL_PID=$MYSQL_PIDFILE_PID
137 MYSQL_STATUS="running"
140 MYSQL_STATUS="starting"
147 # else default, "not running"
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
156 # $2 - status | other
159 local clusterdir="$1" config_file
162 local config=$(awk -F= -vclusterdir="$clusterdir" '!/^#/{ if (clusterdir == $2) print $1}' /etc/mysql/@mysqlversion@/clusters.conf)
163 if [[ $config = /* ]]; then
164 config_file="$config"
165 elif [ -f "/etc/mysql/@mysqlversion@/$config" ]; then
166 config_file="/etc/mysql/@mysqlversion@/$config"
168 config_file="$clusterdir/mysqld.conf"
171 MYSQL_CLUSTER_DIR="$clusterdir"
173 if [ -z "$config_file" ]; then
174 nls "Error: Can't find config file for %s cluster" "$clusterdir"
175 if [ "$mode" = "status" ]; then
181 MYSQL_CONFIG="$config_file"
184 if [ ! -f "$config_file" ]; then
185 nls "Error: config file %s not found" "$config_file"
186 nls "MySQL can't be run. Did you initialize DB by doing \`$0 init'?"
187 if [ "$mode" = "status" ]; then
194 # reset to initial state
195 MYSQL_DATA_DIR= MYSQL_USER= MYSQL_PIDFILE= MYSQL_SOCKET= MYSQL_PORT= MYSQL_BIND_ADDRESS= MYSQL_SKIP_NETWORKING= MYSQL_LOG_ERROR=
203 gsub(/^[\t ]+|[\t ]+$/, "", $1);
204 gsub(/^[\t ]+|[\t ]+$/, "", $2);
207 # skip comments and empty lines
208 /^[;#]|^ *$/ { next }
210 /^[ \t]*\[.*\][ \t]*$/ {
212 section = substr($0, RSTART + 1, RSTART + RLENGTH - 3);
216 section == "mysqld" {
217 if ($1 == "datadir") {
218 printf("MYSQL_DATA_DIR=%s;", $2);
219 } else if ($1 == "user") {
220 printf("MYSQL_USER=%s;", $2);
221 } else if ($1 == "pid-file") {
222 printf("MYSQL_PIDFILE=%s;", $2);
223 } else if ($1 == "socket") {
224 printf("MYSQL_SOCKET=%s;", $2);
225 } else if ($1 == "port") {
226 printf("MYSQL_PORT=%s;", $2);
227 } else if ($1 == "bind-address") {
228 printf("MYSQL_BIND_ADDRESS=%s;", $2);
229 } else if ($1 == "skip-networking") {
230 printf("MYSQL_SKIP_NETWORKING=1;");
231 } else if ($1 == "log-error") {
232 printf("MYSQL_LOG_ERROR=%s;", $2);
237 # error log not defined in config file. add one
238 if [ -z "$MYSQL_LOG_ERROR" ]; then
239 MYSQL_LOG_ERROR=$MYSQL_ERRLOG
241 # unset, so mysqld would use value from config itself
242 unset MYSQL_LOG_ERROR
245 MYSQL_DATA_DIR_SUB="/mysqldb"
247 if [ -z "$MYSQL_DATA_DIR" -o "$MYSQL_DATA_DIR" != "${clusterdir}${MYSQL_DATA_DIR_SUB}/db" ]; then
248 nls "Error: datadir specified in %s should be %s" "$config_file" "$clusterdir${MYSQL_DATA_DIR_SUB}/db"
249 nls " MySQL can't be run."
253 if [ -z "$MYSQL_PIDFILE" -o "$MYSQL_PIDFILE" != "$clusterdir${MYSQL_DATA_DIR_SUB}/mysql.pid" ]; then
254 nls "Error: pid-file specified in %s should be %s" "$config_file" "$clusterdir${MYSQL_DATA_DIR_SUB}/mysql.pid"
255 nls " MySQL can't be run."
259 if [ -z "$MYSQL_USER" ]; then
260 echo "$(nls 'MySQL user not configured properly')"'!' >&2
261 nls "Edit %s and configure it." "$config_file" >&2
268 local clusterdir="$1"
269 mysqlgetconfig "$clusterdir"
270 if [ ! -d "$MYSQL_DATA_DIR/mysql" ]; then
271 nls "MySQL cluster %s not initialized." "$clusterdir"
272 nls "Try \`%s init %s' before start." "$0" "$clusterdir"
276 msg_starting "MySQL $clusterdir"; busy
277 [ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0
278 rm -f "$MYSQL_PIDFILE"
281 TMPDIR=/tmp nice -n ${SERVICE_RUN_NICE_LEVEL:-$DEFAULT_SERVICE_RUN_NICE_LEVEL} \
282 /usr/bin/setsid @mysqlsbindir@/mysqld \
283 --defaults-file=$MYSQL_CONFIG \
284 --datadir=$MYSQL_DATA_DIR \
285 --pid-file=$MYSQL_PIDFILE \
286 ${MYSQL_LOG_ERROR:+--log-error="$MYSQL_LOG_ERROR"} \
291 mysqlstatus "$clusterdir" start
292 # it takes longer for mysqld to start and create pidfile if it has to recover innodb transactions
293 if [ "$MYSQL_STATUS" = "starting" ]; then
295 show "Waiting for MySQL to start"
298 # while the pid is running, mysql is starting up
299 # if the pidfile was created, it started up successfully
300 # if either case fails we break and report status
302 [ -d /proc/$pid ] || break
303 [ -f "$MYSQL_PIDFILE" ] && break
308 mysqlstatus "$clusterdir" start
309 if [ "$MYSQL_STATUS" = "running" -a "$MYSQL_PID" != "unknown" ]; then
311 elif [ "$MYSQL_STATUS" = "died" ]; then
322 local clusterdir="$1"
323 mysqlstatus "$clusterdir" stop
324 msg_stopping "MySQL $clusterdir"
327 # try graceful shutdown -- send shutdown command
328 # requires mysql_sysadmin user proper privs
329 @mysqlbindir@/mysqladmin --defaults-file=$MYSQL_CONFIG ${MYSQL_SOCKET:+--socket=$MYSQL_SOCKET} shutdown >/dev/null 2>&1
330 mysqlstatus "$clusterdir" stop
332 if [ "$MYSQL_PID" != "unknown" ]; then
333 kill -TERM "$MYSQL_PID" 2> /dev/null
334 for nr in $(seq 1 $(($MYSQL_STOP_WAIT_TIME*10))); do
335 [ -d "/proc/$MYSQL_PID" ] || break
340 mysqlstatus "$clusterdir" stop
341 if [ "$MYSQL_STATUS" = "died" ]; then
343 elif [ "$MYSQL_STATUS" = "running" -o "$MYSQL_STATUS" = "starting" ]; then
350 # report slave status
351 # uses MYSQL_SOCKET - path to mysql socket
353 if [ ! -x @mysqlbindir@/mysql ]; then
354 echo >&2 "Slave status not available: 'mysql' program not installed."
358 # see if slave status can be reported
359 local err=0 slave_status=$(mysql --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" -e 'show slave status\G')
360 if [ -z "$slave_status" ]; then
365 printf "Slave Status:\n"
368 eval $(echo "$slave_status" | awk -F': ' '/^ *[A-Za-z_]+:/{
370 v = substr($0, length($1) + 3);
371 gsub(/\\/, "\\\\\\", v);
372 gsub(/"/, "\\\"", v);
374 gsub(/\$/, "\\$", v);
375 gsub(/\$/, "\\$", v);
376 printf("%s=\"%s\";\n", k, v);
380 if [ "$slave_io_running" != "Yes" ]; then
381 printf "\tSlave IO not running\n"
384 if [ "$slave_sql_running" != "Yes" ]; then
385 printf "\tSlave SQL not running\n"
389 if [ "$err" = 1 -a "$last_errno" -gt 0 ]; then
390 printf "\tERROR %s: %s\n" "$last_errno" "$last_error"
393 if [ "$master_log_file" != "$relay_master_log_file" ]; then
394 printf "\tERROR logfile mismatch (%s)\n" "$relay_master_log_file"
398 if [ -z "$read_master_log_pos" -o -z "$exec_master_log_pos" ]; then
399 printf "\tERROR No info about master\n"
404 diff=$(($read_master_log_pos - $exec_master_log_pos))
405 printf "\tread pos: %s (%s) (host: %s:%d)\n" "$read_master_log_pos" "$master_log_file" "$master_host" "$master_port"
406 printf "\texec pos: %s\n" "$exec_master_log_pos"
407 printf "\tdiff: %s\n" "$diff"
411 # check for running mysql instances; if any instance is running then
412 # create subsys lock file
415 # check for every defined db cluster in sysconfig file
416 for mysqldir in $DB_CLUSTERS; do
417 mysqlstatus "$mysqldir"
418 if [ "$MYSQL_STATUS" = "running" ]; then
419 touch /var/lock/subsys/mysql-@mysqlversion@
423 rm -f /var/lock/subsys/mysql-@mysqlversion@
427 local clusterdir="$1"
429 if [ -f /etc/mysqld.conf ]; then
430 nls "Running in \`no cluster compat' mode: can't initialize database."
431 nls "Move /etc/mysqld.conf away and rerun \`$0 init' (new config will be in $clusterdir)."
435 if [ -f "$clusterdir/mysqld.conf" ]; then
436 mysqlgetconfig "$clusterdir"
439 MYSQL_CLUSTER_DIR="$clusterdir"
440 MYSQL_DATA_DIR="$clusterdir/mysqldb/db"
441 MYSQL_PIDFILE="$clusterdir/mysqldb/mysql.pid"
442 MYSQL_SOCKET="$clusterdir/mysqldb/mysql.sock"
444 # this $MYSQL_CONFIG will be created later
445 MYSQL_CONFIG="$MYSQL_CLUSTER_DIR/mysqld.conf"
448 show "Initializing cluster %s" "$clusterdir"; started
450 # Check if not exist init database
451 if [ -d "$MYSQL_DATA_DIR/mysql" ]; then
452 nls "Seems that database is initialized now. Remove by hand %s" "$MYSQL_DATA_DIR/mysql"
453 nls "before initializing database."
454 nls "For now skipping cluster %s." "$clusterdir"
458 show "Initializing MySQL database for $MYSQL_DATA_DIR"
462 mkdir -p "$MYSQL_DATA_DIR" > /dev/null 2>&1
463 # Using mysql:mysql for MYSQL_CLUSTER_DIR is creating SECURITY hole, root:root is proper
464 chown root:root "$MYSQL_CLUSTER_DIR"
465 chown mysql:mysql "$MYSQL_CLUSTER_DIR/mysqldb" "$MYSQL_DATA_DIR" > /dev/null 2>&1
466 chmod 751 "$MYSQL_CLUSTER_DIR" "$MYSQL_CLUSTER_DIR/mysqldb"
468 if [ -f $sharedir/mysqld.conf -a ! -f "$MYSQL_CLUSTER_DIR/mysqld.conf" ]; then
470 s#\(datadir.*\)=.*#\1= $MYSQL_DATA_DIR#g;
471 s#\(pid-file.*\)=.*#\1= $MYSQL_PIDFILE#g;
472 s#\(socket.*\)=.*#\1= $MYSQL_SOCKET#g;
473 s#@clusterdir@#$MYSQL_CLUSTER_DIR#g;
474 " $sharedir/mysqld.conf > "$MYSQL_CLUSTER_DIR/mysqld.conf"
475 chown root:root "$MYSQL_CLUSTER_DIR/mysqld.conf"
476 chmod 640 "$MYSQL_CLUSTER_DIR/mysqld.conf"
480 @mysqlsbindir@/mysqld \
481 --defaults-file=$MYSQL_CLUSTER_DIR/mysqld.conf \
482 --initialize-insecure \
483 --skip-grant-tables \
484 --datadir=$MYSQL_DATA_DIR \
486 --replica-load-tmpdir=$MYSQL_DATA_DIR \
487 --tmpdir=$MYSQL_DATA_DIR \
488 --log-error=$MYSQL_ERRLOG \
490 [ -f $MYSQL_DATA_DIR/mysql.ibd ] || ok=0
492 if [ "$ok" = 1 ]; then
496 PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL USERS!
499 $ service mysql-@mysqlversion@ start
503 For 'root' user (ALL privileges, DB admin), paste command with new password:
504 ALTER USER 'root'@'localhost' IDENTIFIED BY 'newpassword';
507 For 'mysql_sysadmin' (RELOAD, SHUTDOWN and REPLICATION CLIENT privileges):
508 CREATE USER 'mysql_sysadmin'@'localhost' IDENTIFIED BY 'sysnewpassword' PASSWORD EXPIRE NEVER;
509 GRANT RELOAD, SHUTDOWN, REPLICATION CLIENT ON *.* TO 'mysql_sysadmin'@'localhost';
514 $ mysql -u root -p --ssl-mode=disabled -S $MYSQL_SOCKET
517 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)
527 ERROR: Installation FAILED!
531 Examine the logs in $MYSQL_ERRLOG for more information. You can
532 also try to start the mysqld daemon with:
534 @mysqlsbindir@/mysqld --skip-grant &
536 You can use the command line tool mysql to connect to the mysql
537 database and look at the grant tables:
539 shell> mysql -u root mysql
542 Try 'mysqld --help' if you have problems with paths. Setting on
543 logging in $MYSQL_DATA_DIR/mysqld.conf gives you a log in
544 /var/log/mysql/@mysqlversion/query.log that may be helpful.
545 The latest information about MySQL is available on the web at
546 http://www.mysql.com/.
548 Please check TLD Linux site for newer versions of this package.
550 Please consult the MySQL manual section: 'Problems running
551 mysql_install_db', and the manual section that describes problems on
552 your OS. Another information source is the MySQL email archive.
558 # if it's first server, register as default
559 if [ ! -e /var/lib/mysql/@mysqlversion@/mysql.sock ] || [ -L /var/lib/mysql/@mysqlversion@/mysql.sock ] && [ -z "$(readlink /var/lib/mysql/@mysqlversion@/mysql.sock)" ]; then
560 sock=${MYSQL_SOCKET#/var/lib/mysql/@mysqlversion@/} # make it relative if possible
561 ln -s "$sock" /var/lib/mysql/@mysqlversion@/mysql.sock
563 # same for config, move to /etc
564 if [ ! -e /etc/mysql/@mysqlversion@/mysqld.conf ]; then
565 mv "$MYSQL_CLUSTER_DIR/mysqld.conf" /etc/mysql/@mysqlversion@/mysqld.conf
570 # End of useful functions.
575 for mysqldir in $DB_CLUSTERS; do
576 mysqlstatus "$mysqldir" start
577 if [ "$MYSQL_STATUS" = "running" ]; then
578 msg_already_running "MySQL $mysqldir"
580 mysqlstart "$mysqldir"
588 for mysqldir in $DB_CLUSTERS; do
589 mysqlstatus "$mysqldir" stop
590 if [ "$MYSQL_STATUS" = "not running" ]; then
591 msg_not_running "MySQL $mysqldir"
593 mysqlstop "$mysqldir"
600 if [ ! -f /var/lock/subsys/mysql-@mysqlversion@ ]; then
601 msg_not_running "MySQL"
611 local mysqldir addr port socket pid pids running datadir
613 for mysqldir in $DB_CLUSTERS; do
614 mysqlstatus "$mysqldir"
615 if [ "$MYSQL_STATUS" = "running" ]; then
617 addr=${MYSQL_BIND_ADDRESS:-0.0.0.0}
618 port=${MYSQL_PORT:-3306}
619 socket=${MYSQL_SOCKET:-/var/lib/mysql/@mysqlversion@/mysql.sock}
621 nls "MySQL cluster %s, pid %s\n" "$mysqldir" "$pid"
622 [ -z "$MYSQL_SKIP_NETWORKING" ] && nls "\ttcp:%s:%s\n" "$addr" "$port"
623 nls "\tunix: %s\n" "$socket"
625 MYSQL_SOCKET=$socket slave_status
627 pids="$pids/$MYSQL_PID/"
628 progress "$MYSQL_STATUS"
630 show "MySQL cluster %s" "$mysqldir"
631 progress "$MYSQL_STATUS" "$CFAIL"
636 for pid in $(/sbin/pidof mysqld); do
637 if [[ $pids != */$pid/* ]]; then
638 running="$running $pid"
642 if [ $# = 1 -a "$running" ]; then
643 nls "Warning: MySQL Daemon processes not under clusters.conf control:"
644 # see if we can display their status
645 for pid in $running; do
646 datadir=$(cat /proc/$pid/cmdline | tr '\0' '\n' | fgrep -- --datadir=)
647 datadir=${datadir#--datadir=} # strip --datadir
648 mysqldir=${datadir%/mysqldb/db} # strip /mysqldb/db
649 mysqlstatus "$mysqldir"
650 if [ "$MYSQL_STATUS" = "running" ]; then
651 addr=${MYSQL_BIND_ADDRESS:-0.0.0.0}
652 port=${MYSQL_PORT:-3306}
653 socket=${MYSQL_SOCKET:-/var/lib/mysql/@mysqlversion@/mysql.sock}
654 nls "MySQL cluster %s, pid %s\n" "$mysqldir" "$pid"
655 [ -z "$MYSQL_SKIP_NETWORKING" ] && nls "\ttcp:%s:%s\n" "$addr" "$port"
656 nls "\tunix: %s\n" "$socket"
658 MYSQL_SOCKET=$socket slave_status
660 progress "$MYSQL_STATUS"
662 show "MySQL cluster %s" "$mysqldir"
663 progress "$MYSQL_STATUS" "$CFAIL"
689 for mysqldir in $DB_CLUSTERS; do
690 mysqlinit "$mysqldir"
695 for mysqldir in $DB_CLUSTERS; do
696 mysqlgetconfig "$mysqldir"
697 # just if mysqld is really running
698 if @mysqlbindir@/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" ping >/dev/null 2>&1; then
699 @mysqlbindir@/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" flush-logs
707 msg_usage "$0 {start|stop|restart|try-restart|force-reload|init|flush-logs|status}"