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 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}
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_DATA_DIR MYSQL_USER MYSQL_PIDFILE
159 # emulate old behaviour if only one cluster specified
160 if [ "$clusterdir" = "$MYSQL_DB_CLUSTERS" -a "$clusterdir" = "/var/lib/mysql" -a -f /etc/mysqld.conf ]; then
162 config_file=/etc/mysqld.conf
164 config=$(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"
170 config_file="$clusterdir/mysqld.conf"
174 MYSQL_CLUSTER_DIR="$clusterdir"
176 if [ -z "$config_file" ]; then
177 nls "Error: Can't find config file for %s cluster" "$clusterdir"
180 MYSQL_CONFIG="$config_file"
183 if [ ! -f "$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'?"
190 /^[ \t]*\[.*\][ \t]*$/ {
192 section=substr($0, RSTART + 1, RSTART + RLENGTH - 3)
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;", $3)
208 if is_yes "$MYSQL_RA_COMPAT"; then
209 MYSQL_DATA_DIR_SUB=""
211 MYSQL_DATA_DIR_SUB="/mysqldb"
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${MYSQL_DATA_DIR_SUB}/db"
216 nls " MySQL can't be run."
220 if [ -z "$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."
226 if [ -z $MYSQL_USER ]; then
227 echo "$(nls 'MySQL user not configured properly')"'!' >&2
228 nls "Edit %s and configure it." "$config_file" >&2
236 mysqlgetconfig "$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"
243 msg_starting "MySQL $clusterdir"
245 [ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0
246 rm -f "$MYSQL_PIDFILE"
248 TMPDIR=/tmp nice -n ${SERVICE_RUN_NICE_LEVEL:-$DEFAULT_SERVICE_RUN_NICE_LEVEL} \
249 /usr/bin/setsid /usr/sbin/mysqld \
250 --defaults-file=$MYSQL_CONFIG \
251 --datadir=$MYSQL_DATA_DIR \
252 --pid-file=$MYSQL_PIDFILE $MYSQL_OPTIONS \
253 >> $MYSQL_ERRLOG 2>&1 &
257 mysqlstatus "$clusterdir" start
258 # it takes longer for mysqld to start and create pidfile if it has to recover innodb transactions
259 if [ "$MYSQL_STATUS" = "starting" ]; then
261 show "Waiting for MySQL to start"
264 # while the pid is running, mysql is starting up
265 # if the pidfile was created, it started up successfully
266 # if either case fails we break and report status
268 [ -d /proc/$pid ] || break
269 [ -f "$MYSQL_PIDFILE" ] && break
274 mysqlstatus "$clusterdir" start
275 if [ "$MYSQL_STATUS" = "running" -a "$MYSQL_PID" != "unknown" ]; then
277 elif [ "$MYSQL_STATUS" = "died" ]; then
289 mysqlstatus "$clusterdir" stop
290 msg_stopping "MySQL $clusterdir"
293 # try graceful shutdown -- send shutdown command
294 # requires mysql_sysadmin user proper privs
295 /usr/bin/mysqladmin --defaults-file=$MYSQL_CONFIG ${MYSQL_SOCKET:+--socket=$MYSQL_SOCKET} shutdown >/dev/null 2>&1
296 mysqlstatus "$clusterdir" stop
298 if [ "$MYSQL_PID" != "unknown" ]; then
299 kill -TERM "$MYSQL_PID" 2> /dev/null
300 for nr in $(seq 1 $(($MYSQL_STOP_WAIT_TIME*10))); do
301 [ -d "/proc/$MYSQL_PID" ] || break
306 mysqlstatus "$clusterdir" stop
307 if [ "$MYSQL_STATUS" = "died" ]; then
309 elif [ "$MYSQL_STATUS" = "running" -o "$MYSQL_STATUS" = "starting" ]; then
317 # check for running mysql instances; if any instance is running then
318 # create subsys lock file
321 # check for every defined db cluster in sysconfig file
322 for mysqldir in $DB_CLUSTERS; do
323 mysqlstatus "$mysqldir"
324 if [ "$MYSQL_STATUS" = "running" ]; then
325 touch /var/lock/subsys/mysql
329 rm -f /var/lock/subsys/mysql
335 if [ -f /etc/mysqld.conf ]; then
336 nls "Running in \`no cluster compat' mode: can't initialize database."
337 nls "Move /etc/mysqld.conf away and rerun \`$0 init' (new config will be in $clusterdir)."
341 if [ -f "$clusterdir/mysqld.conf" ]; then
342 mysqlgetconfig "$clusterdir"
345 MYSQL_CLUSTER_DIR="$clusterdir"
346 MYSQL_DATA_DIR="$clusterdir/mysqldb/db"
347 MYSQL_PIDFILE="$clusterdir/mysqldb/mysql.pid"
348 MYSQL_SOCKET="$clusterdir/mysqldb/mysql.sock"
350 # this $MYSQL_CONFIG will be created later
351 MYSQL_CONFIG="$MYSQL_CLUSTER_DIR/mysqld.conf"
354 show "Initializing cluster %s" "$clusterdir"; echo
356 # Check if not exist init database
357 if [ -d "$MYSQL_DATA_DIR/mysql" ]; then
358 nls "Seems that database is initialized now. Remove by hand %s" "$MYSQL_DATA_DIR/mysql"
359 nls "before initializing database."
360 nls "For now skipping cluster %s." "$clusterdir"
364 show "Installing MySQL system tables for $MYSQL_DATA_DIR"
368 mkdir -p "$MYSQL_DATA_DIR" > /dev/null 2>&1
369 # Using mysql:mysql for MYSQL_CLUSTER_DIR is creating SECURITY hole, root:root is proper
370 chown root:root "$MYSQL_CLUSTER_DIR"
371 chown mysql:mysql "$MYSQL_CLUSTER_DIR/mysqldb" "$MYSQL_DATA_DIR" > /dev/null 2>&1
372 chmod 751 "$MYSQL_CLUSTER_DIR" "$MYSQL_CLUSTER_DIR/mysqldb"
374 if [ -f /usr/share/mysql/mysqld.conf -a ! -f "$MYSQL_CLUSTER_DIR/mysqld.conf" ]; then
376 s#\(datadir.*\)=.*#\1= $MYSQL_DATA_DIR#g;
377 s#\(pid-file.*\)=.*#\1= $MYSQL_PIDFILE#g;
378 s#\(socket.*\)=.*#\1= $MYSQL_SOCKET#g;
379 s#@clusterdir@#$MYSQL_CLUSTER_DIR#g;
380 " /usr/share/mysql/mysqld.conf > "$MYSQL_CLUSTER_DIR/mysqld.conf"
381 chown root:root "$MYSQL_CLUSTER_DIR/mysqld.conf"
382 chmod 640 "$MYSQL_CLUSTER_DIR/mysqld.conf"
385 if [ ! -e /var/lib/mysql/mysql.sock ] || [ -L /var/lib/mysql/mysql.sock ] && [ -z "$(readlink /var/lib/mysql/mysql.sock)" ]; then
386 sock=${MYSQL_SOCKET#/var/lib/mysql/} # make it relative if possible
387 ln -s "$sock" /var/lib/mysql/mysql.sock
390 cat > $MYSQL_DATA_DIR/mysql-init.sql <<-EOF
391 CREATE DATABASE mysql;
393 $(cat /usr/share/mysql/mysql_system_tables.sql)
394 $(sed -e "/@current_hostname/d" /usr/share/mysql/mysql_system_tables_data.sql)
398 /usr/sbin/mysqld --bootstrap --skip-grant-tables \
399 --datadir=$MYSQL_DATA_DIR --user=$MYSQL_USER \
400 --slave-load-tmpdir=$MYSQL_DATA_DIR --tmpdir=$MYSQL_DATA_DIR < \
401 $MYSQL_DATA_DIR/mysql-init.sql 2>> /var/log/mysql/err && ok=1
402 [ -f $MYSQL_DATA_DIR/mysql/host.frm ] || ok=0
404 if [ "$ok" = 1 ]; then
405 rm -f $MYSQL_DATA_DIR/mysql-init.sql
409 PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL USERS!
410 This is done, after starting database, in the order shown,
413 For 'mysql_sysadmin' (RELOAD and SHUTDOWN privileges):
414 echo "update mysql.user set password=password('newpassword') where user='mysql_sysadmin'; FLUSH PRIVILEGES;" | mysql -u mysql -S $MYSQL_SOCKET
416 For 'mysql' user (ALL privileges, DB admin):
417 echo "update mysql.user set password=password('newpassword') where user='mysql'; FLUSH PRIVILEGES;" | mysql -u mysql -S $MYSQL_SOCKET
419 NOTE: mysql_sysadmin password should be placed to $MYSQL_CONFIG in
420 mysqladmin section. See the manual for more instructions.
421 (This user is used at logs rotation and server shutdown)
424 show "Filling help tables..."
426 ( echo "use mysql;"; cat /usr/share/mysql/fill_help_tables.sql ) | \
427 /usr/sbin/mysqld --bootstrap --skip-grant-tables \
428 --datadir=$MYSQL_DATA_DIR --user=$MYSQL_USER \
429 --slave-load-tmpdir=$MYSQL_DATA_DIR --tmpdir=$MYSQL_DATA_DIR \
430 2>> /var/log/mysql/err && ok=1
431 if [ "$ok" = 1 ]; then
436 WARNING: HELP FILES ARE NOT COMPLETELY INSTALLED!
437 The "HELP" command might not work properly.
444 Installation of grant tables FAILED!
446 The initialization SQL script was preserved at $MYSQL_DATA_DIR/mysql-init.sql
448 Examine the logs in /var/log/mysql for more information. You can
449 also try to start the mysqld daemon with:
451 /usr/sbin/mysqld --skip-grant &
453 You can use the command line tool mysql to connect to the mysql
454 database and look at the grant tables:
456 shell> mysql -u mysql mysql
459 Try 'mysqld --help' if you have problems with paths. Setting on
460 logging in /etc/mysqld.conf gives you a log in /var/log/mysql/log that
461 may be helpful. The latest information about MySQL is available on the
462 web at http://www.mysql.com/.
464 Please check PLD Linux ftp site for newer versions of this package.
466 Please consult the MySQL manual section: 'Problems running
467 mysql_install_db', and the manual section that describes problems on
468 your OS. Another information source is the MySQL email archive.
469 Please check all of the above before mailing us! And if you do mail
470 us, you MUST use the mysqlbug script!
478 # End of useful functions.
482 if [ ! -f $MYSQL_ERRLOG ]; then
485 chown mysql:mysql $MYSQL_ERRLOG
486 chmod 640 $MYSQL_ERRLOG
488 for mysqldir in $DB_CLUSTERS; do
489 mysqlstatus "$mysqldir" start
490 if [ "$MYSQL_STATUS" = "running" ]; then
491 msg_already_running "MySQL $mysqldir"
493 mysqlstart "$mysqldir"
500 for mysqldir in $DB_CLUSTERS; do
501 mysqlstatus "$mysqldir" stop
502 if [ "$MYSQL_STATUS" = "not running" ]; then
503 msg_not_running "MySQL $mysqldir"
505 mysqlstop "$mysqldir"
520 for mysqldir in $DB_CLUSTERS; do
521 mysqlstatus "$mysqldir"
522 if [ "$MYSQL_STATUS" = "running" ]; then
523 show "MySQL cluster %s, PID %s" "$mysqldir" "$MYSQL_PID"
524 pids="$pids/$MYSQL_PID/"
525 progress "$MYSQL_STATUS"
527 show "MySQL cluster %s" "$mysqldir"
528 progress "$MYSQL_STATUS" "$CFAIL"
533 for pid in $(/sbin/pidof mysqld); do
534 if [[ $pids != */$pid/* ]]; then
535 running="$running $pid"
539 if [ $# -gt 1 -a "$running" ]; then
540 nls "Warning: MySQL Daemon processes not under clusters.conf control:"
541 # see if we can display their status
542 for pid in $running; do
543 datadir=$(cat /proc/$pid/cmdline | tr '\0' '\n' | fgrep -- --datadir=)
544 datadir=${datadir#--datadir=} # strip --datadir
545 mysqldir=${datadir%/mysqldb/db} # strip /mysqldb/db
546 mysqlstatus "$mysqldir"
547 if [ "$MYSQL_STATUS" = "running" ]; then
548 show "MySQL cluster %s, PID %s" "$mysqldir" "$pid"
549 progress "$MYSQL_STATUS"
551 show "MySQL cluster %s" "$mysqldir"
552 progress "$MYSQL_STATUS" "$CFAIL"
558 restart|force-reload)
563 for mysqldir in $DB_CLUSTERS; do
564 mysqlinit "$mysqldir"
569 for mysqldir in $DB_CLUSTERS; do
570 mysqlgetconfig "$mysqldir"
571 # just if mysqld is really running
572 if /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" ping >/dev/null 2>&1; then
573 /usr/bin/mysqladmin --defaults-file="$MYSQL_CONFIG" --socket="$MYSQL_SOCKET" flush-logs
578 msg_usage "$0 {start|stop|init|restart|force-reload|status}"