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.
11 # Source function library
12 . /etc/rc.d/init.d/functions
15 . /etc/sysconfig/network
18 if [ -f /etc/sysconfig/mysql ]; then
19 . /etc/sysconfig/mysql
21 nls "Error: %s not found" /etc/sysconfig/mysql
22 nls "%s can't be run." MySQL
26 if [ -n "$MYSQL_DB_CLUSTERS" ]; then
27 nls "Warning: MYSQL_DB_CLUSTERS is set. It's obsolete. Use %s instead." /etc/mysql/clusters.conf
30 if [ -f /etc/mysql/clusters.conf ]; then
31 MYSQL_DB_CLUSTERS=$(awk -F= '!/^#/ && /=/{print $2}' /etc/mysql/clusters.conf)
32 if [ -z "$MYSQL_DB_CLUSTERS" ]; then
33 nls "Warning: there are no configured clusters."
37 nls "Warning: Missing clusters config file %s" /etc/mysql/clusters.conf
38 if [ -z "$MYSQL_DB_CLUSTERS" ]; then
39 nls "Warning: there are no configured clusters."
40 nls "Using default cluster /var/lib/mysql (compatibility mode)"
41 MYSQL_DB_CLUSTERS=/var/lib/mysql
46 # Check that networking is up
47 if is_yes "${NETWORKING}"; then
48 if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status -a "$1" != init ]; then
49 msg_network_down MySQL
58 # any db cluster as command line argument?
61 # perform action for specified clusters only
63 # try auto resolving from /etc/mysql/clusters.conf
64 if [[ "$a" != /* ]]; then
65 m=$(awk -va="$a" -F= 'substr($0, 1, length(a)) == a {print $1}' /etc/mysql/clusters.conf)
67 echo >&2 "Cluster name '$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 $2}' /etc/mysql/clusters.conf)
76 DB_CLUSTERS="$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/mysqld.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"
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 -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")
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
158 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"
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 \`$0 init'?"
190 # reset to initial state
191 MYSQL_DATA_DIR= MYSQL_USER= MYSQL_PIDFILE= MYSQL_SOCKET= MYSQL_PORT= MYSQL_BIND_ADDRESS= MYSQL_SKIP_NETWORKING= MYSQL_LOG_ERROR=
199 gsub(/^[\t ]+|[\t ]+$/, "", $1);
200 gsub(/^[\t ]+|[\t ]+$/, "", $2);
203 # skip comments and empty lines
204 /^[;#]|^ *$/ { next }
206 /^[ \t]*\[.*\][ \t]*$/ {
208 section = substr($0, RSTART + 1, RSTART + RLENGTH - 3);
212 section == "mysqld" {
213 if ($1 == "datadir") {
214 printf("MYSQL_DATA_DIR=%s;", $2);
215 } else if ($1 == "user") {
216 printf("MYSQL_USER=%s;", $2);
217 } else if ($1 == "pid-file") {
218 printf("MYSQL_PIDFILE=%s;", $2);
219 } else if ($1 == "socket") {
220 printf("MYSQL_SOCKET=%s;", $2);
221 } else if ($1 == "port") {
222 printf("MYSQL_PORT=%s;", $2);
223 } else if ($1 == "bind-address") {
224 printf("MYSQL_BIND_ADDRESS=%s;", $2);
225 } else if ($1 == "skip-networking") {
226 printf("MYSQL_SKIP_NETWORKING=1;");
227 } else if ($1 == "log-error") {
228 printf("MYSQL_LOG_ERROR=%s;", $2);
233 # error log not defined in config file. add one
234 if [ -z "$MYSQL_LOG_ERROR" ]; then
235 MYSQL_LOG_ERROR=$MYSQL_ERRLOG
237 # unset, so mysqld would use value from config itself
238 unset MYSQL_LOG_ERROR
241 if is_yes "$MYSQL_RA_COMPAT"; then
242 MYSQL_DATA_DIR_SUB=""
244 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 /usr/sbin/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 $clusterdir"
327 # try graceful shutdown -- send shutdown command
328 # requires mysql_sysadmin user proper privs
329 /usr/bin/mysqladmin --defaults-file=$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
351 # check for running mysql instances; if any instance is running then
352 # create subsys lock file
355 # check for every defined db cluster in sysconfig file
356 for mysqldir in $DB_CLUSTERS; do
357 mysqlstatus "$mysqldir"
358 if [ "$MYSQL_STATUS" = "running" ]; then
359 touch /var/lock/subsys/mysql
363 rm -f /var/lock/subsys/mysql
367 local clusterdir="$1"
369 if [ -f /etc/mysqld.conf ]; then
370 nls "Running in \`no cluster compat' mode: can't initialize database."
371 nls "Move /etc/mysqld.conf away and rerun \`$0 init' (new config will be in $clusterdir)."
375 if [ -f "$clusterdir/mysqld.conf" ]; then
376 mysqlgetconfig "$clusterdir"
379 MYSQL_CLUSTER_DIR="$clusterdir"
380 MYSQL_DATA_DIR="$clusterdir/mysqldb/db"
381 MYSQL_PIDFILE="$clusterdir/mysqldb/mysql.pid"
382 MYSQL_SOCKET="$clusterdir/mysqldb/mysql.sock"
384 # this $MYSQL_CONFIG will be created later
385 MYSQL_CONFIG="$MYSQL_CLUSTER_DIR/mysqld.conf"
388 show "Initializing cluster %s" "$clusterdir"; started
390 # Check if not exist init database
391 if [ -d "$MYSQL_DATA_DIR/mysql" ]; then
392 nls "Seems that database is initialized now. Remove by hand %s" "$MYSQL_DATA_DIR/mysql"
393 nls "before initializing database."
394 nls "For now skipping cluster %s." "$clusterdir"
398 show "Installing MySQL system tables for $MYSQL_DATA_DIR"
402 mkdir -p "$MYSQL_DATA_DIR" > /dev/null 2>&1
403 # Using mysql:mysql for MYSQL_CLUSTER_DIR is creating SECURITY hole, root:root is proper
404 chown root:root "$MYSQL_CLUSTER_DIR"
405 chown mysql:mysql "$MYSQL_CLUSTER_DIR/mysqldb" "$MYSQL_DATA_DIR" > /dev/null 2>&1
406 chmod 751 "$MYSQL_CLUSTER_DIR" "$MYSQL_CLUSTER_DIR/mysqldb"
408 if [ -f /usr/share/mysql/mysqld.conf -a ! -f "$MYSQL_CLUSTER_DIR/mysqld.conf" ]; then
410 s#\(datadir.*\)=.*#\1= $MYSQL_DATA_DIR#g;
411 s#\(pid-file.*\)=.*#\1= $MYSQL_PIDFILE#g;
412 s#\(socket.*\)=.*#\1= $MYSQL_SOCKET#g;
413 s#@clusterdir@#$MYSQL_CLUSTER_DIR#g;
414 " /usr/share/mysql/mysqld.conf > "$MYSQL_CLUSTER_DIR/mysqld.conf"
415 chown root:root "$MYSQL_CLUSTER_DIR/mysqld.conf"
416 chmod 640 "$MYSQL_CLUSTER_DIR/mysqld.conf"
419 if [ ! -e /var/lib/mysql/mysql.sock ] || [ -L /var/lib/mysql/mysql.sock ] && [ -z "$(readlink /var/lib/mysql/mysql.sock)" ]; then
420 sock=${MYSQL_SOCKET#/var/lib/mysql/} # make it relative if possible
421 ln -s "$sock" /var/lib/mysql/mysql.sock
424 cat > $MYSQL_DATA_DIR/mysql-init.sql <<-EOF
425 CREATE DATABASE mysql;
427 $(cat /usr/share/mysql/mysql_system_tables.sql)
428 $(sed -e "/@current_hostname/d" /usr/share/mysql/mysql_system_tables_data.sql)
433 --defaults-file=$MYSQL_CLUSTER_DIR/mysqld.conf \
435 --skip-grant-tables \
436 --datadir=$MYSQL_DATA_DIR \
438 --slave-load-tmpdir=$MYSQL_DATA_DIR \
439 --tmpdir=$MYSQL_DATA_DIR \
440 --log-error=$MYSQL_ERRLOG \
441 < $MYSQL_DATA_DIR/mysql-init.sql && ok=1
442 [ -f $MYSQL_DATA_DIR/mysql/host.frm ] || ok=0
444 if [ "$ok" = 1 ]; then
445 rm -f $MYSQL_DATA_DIR/mysql-init.sql
449 PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL USERS!
450 This is done, after starting database, in the order shown,
453 For 'mysql_sysadmin' (RELOAD and SHUTDOWN privileges):
454 echo "update mysql.user set password=password('newpassword') where user='mysql_sysadmin'; FLUSH PRIVILEGES;" | mysql -u mysql -S $MYSQL_SOCKET
456 For 'mysql' user (ALL privileges, DB admin):
457 echo "update mysql.user set password=password('newpassword') where user='mysql'; FLUSH PRIVILEGES;" | mysql -u mysql -S $MYSQL_SOCKET
459 NOTE: mysql_sysadmin password should be placed to $MYSQL_CONFIG in
460 mysqladmin section. See the manual for more instructions.
461 (This user is used at logs rotation and server shutdown)
464 show "Filling help tables..."
466 ( echo "use mysql;"; cat /usr/share/mysql/fill_help_tables.sql ) | \
468 --defaults-file=$MYSQL_CLUSTER_DIR/mysqld.conf \
470 --skip-grant-tables \
471 --datadir=$MYSQL_DATA_DIR \
473 --slave-load-tmpdir=$MYSQL_DATA_DIR \
474 --tmpdir=$MYSQL_DATA_DIR \
475 --log-error=$MYSQL_ERRLOG \
477 if [ "$ok" = 1 ]; then
482 WARNING: HELP FILES ARE NOT COMPLETELY INSTALLED!
483 The "HELP" command might not work properly.
490 Installation of grant tables FAILED!
492 The initialization SQL script was preserved at $MYSQL_DATA_DIR/mysql-init.sql
494 Examine the logs in /var/log/mysql for more information. You can
495 also try to start the mysqld daemon with:
497 /usr/sbin/mysqld --skip-grant &
499 You can use the command line tool mysql to connect to the mysql
500 database and look at the grant tables:
502 shell> mysql -u mysql mysql
505 Try 'mysqld --help' if you have problems with paths. Setting on
506 logging in $MYSQL_DATA_DIR/mysqld.conf gives you a log in /var/log/mysql/query.log that
507 may be helpful. The latest information about MySQL is available on the
508 web at http://www.mysql.com/.
510 Please check PLD Linux ftp site for newer versions of this package.
512 Please consult the MySQL manual section: 'Problems running
513 mysql_install_db', and the manual section that describes problems on
514 your OS. Another information source is the MySQL email archive.
522 # End of useful functions.
527 for mysqldir in $DB_CLUSTERS; do
528 mysqlstatus "$mysqldir" start
529 if [ "$MYSQL_STATUS" = "running" ]; then
530 msg_already_running "MySQL $mysqldir"
532 mysqlstart "$mysqldir"
540 for mysqldir in $DB_CLUSTERS; do
541 mysqlstatus "$mysqldir" stop
542 if [ "$MYSQL_STATUS" = "not running" ]; then
543 msg_not_running "MySQL $mysqldir"
545 mysqlstop "$mysqldir"
552 if [ ! -f /var/lock/subsys/mysql ]; then
553 msg_not_running "MySQL"
581 for mysqldir in $DB_CLUSTERS; do
582 mysqlinit "$mysqldir"
587 for mysqldir in $DB_CLUSTERS; do
588 mysqlgetconfig "$mysqldir"
589 # just if mysqld is really running
590 if /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" ping >/dev/null 2>&1; then
591 /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" flush-logs
596 for mysqldir in $DB_CLUSTERS; do
597 mysqlstatus "$mysqldir"
598 if [ "$MYSQL_STATUS" = "running" ]; then
599 addr=${MYSQL_BIND_ADDRESS:-0.0.0.0}
600 port=${MYSQL_PORT:-3306}
601 socket=${MYSQL_SOCKET:-/var/lib/mysql/mysql.sock}
603 nls "MySQL cluster %s, pid %s\n" "$mysqldir" "$pid"
604 [ -z "$MYSQL_SKIP_NETWORKING" ] && nls "\ttcp:%s:%s\n" "$addr" "$port"
605 nls "\tunix:%s\n" "$socket"
606 pids="$pids/$MYSQL_PID/"
607 progress "$MYSQL_STATUS"
609 show "MySQL cluster %s" "$mysqldir"
610 progress "$MYSQL_STATUS" "$CFAIL"
615 for pid in $(/sbin/pidof mysqld); do
616 if [[ $pids != */$pid/* ]]; then
617 running="$running $pid"
621 if [ $# = 1 -a "$running" ]; then
622 nls "Warning: MySQL Daemon processes not under clusters.conf control:"
623 # see if we can display their status
624 for pid in $running; do
625 datadir=$(cat /proc/$pid/cmdline | tr '\0' '\n' | fgrep -- --datadir=)
626 datadir=${datadir#--datadir=} # strip --datadir
627 mysqldir=${datadir%/mysqldb/db} # strip /mysqldb/db
628 mysqlstatus "$mysqldir"
629 if [ "$MYSQL_STATUS" = "running" ]; then
630 addr=${MYSQL_BIND_ADDRESS:-0.0.0.0}
631 port=${MYSQL_PORT:-3306}
632 socket=${MYSQL_SOCKET:-/var/lib/mysql/mysql.sock}
633 nls "MySQL cluster %s, pid %s\n" "$mysqldir" "$pid"
634 [ -z "$MYSQL_SKIP_NETWORKING" ] && nls "\ttcp:%s:%s\n" "$addr" "$port"
635 nls "\tunix:%s\n" "$socket"
636 progress "$MYSQL_STATUS"
638 show "MySQL cluster %s" "$mysqldir"
639 progress "$MYSQL_STATUS" "$CFAIL"
646 msg_usage "$0 {start|stop|restart|try-restart|force-reload|init|flush-logs|status}"