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#!/bin/sh # Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB # This file is public domain and comes with NO WARRANTY of any kind # MariaDB daemon start/stop script. # Usually this is put in /etc/init.d (at least on machines SYSV R4 based # systems) and linked to /etc/rc3.d/S99mysql and /etc/rc0.d/K01mysql. # When this is done the mysql server will be started when the machine is # started and shut down when the systems goes down. # Comments to support chkconfig on Red Hat Linux # chkconfig: 2345 64 36 # description: A very fast and reliable SQL database engine. # Comments to support LSB init script conventions ### BEGIN INIT INFO # Provides: mysql # Required-Start: $local_fs $network $remote_fs # Should-Start: ypbind nscd ldap ntpd xntpd # Required-Stop: $local_fs $network $remote_fs # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: start and stop MariaDB # Description: MariaDB is a very fast and reliable SQL database engine. ### END INIT INFO # have to do one of the following things for this script to work: # # - Run this script from within the MariaDB installation directory # - Create a /etc/my.cnf file with the following information: # [mysqld] # basedir=<path-to-mysql-installation-directory> # - Add the above to any other configuration file (for example ~/.my.ini) # and copy my_print_defaults to /usr/bin # - Add the path to the mysql-installation-directory to the basedir variable # below. # # If you want to affect other MariaDB variables, you should make your changes # in the /etc/my.cnf, ~/.my.cnf or other MariaDB configuration files. # If you change base dir, you must also change datadir. These may get # overwritten by settings in the MariaDB configuration files. basedir= datadir= # Default value, in seconds, afterwhich the script should timeout waiting # for server start. # Value here is overridden by value in my.cnf. # 0 means don't wait at all # Negative numbers mean to wait indefinitely service_startup_timeout=900 # Lock directory for Red Hat / SuSE. lockdir='/var/lock/subsys' lock_file_path="$lockdir/mysql" # The following variables are only set for letting mysql.server find things. # Set some defaults mysqld_pid_file_path= if test -z "$basedir" then basedir=/usr bindir=/usr/bin if test -z "$datadir" then datadir=/var/lib/mysql fi sbindir=/usr/sbin libexecdir=/usr/sbin else bindir="$basedir/bin" if test -z "$datadir" then datadir="$basedir/data" fi sbindir="$basedir/sbin" if test -f "$basedir/bin/mysqld" then libexecdir="$basedir/bin" else libexecdir="$basedir/libexec" fi fi # datadir_set is used to determine if datadir was set (and so should be # *not* set inside of the --basedir= handler.) datadir_set= # # Use LSB init script functions for printing messages, if possible # Include non-LSB Red Hat init functions to make systemctl redirect work init_functions="/etc/init.d/functions" lsb_functions="/lib/lsb/init-functions" if test -f $lsb_functions; then . $lsb_functions fi if test -f $init_functions; then . $init_functions else log_success_msg() { echo " SUCCESS! $@" } log_failure_msg() { echo " ERROR! $@" } fi PATH="/sbin:/usr/sbin:/bin:/usr/bin:$basedir/bin" export PATH mode=$1 # start or stop [ $# -ge 1 ] && shift case `echo "testing\c"`,`echo -n testing` in *c*,-n*) echo_n= echo_c= ;; *c*,*) echo_n=-n echo_c= ;; *) echo_n= echo_c='\c' ;; esac parse_server_arguments() { for arg do val=`echo "$arg" | sed -e 's/^[^=]*=//'` case "$arg" in --basedir=*) basedir="$val" bindir="$basedir/bin" if test -z "$datadir_set"; then datadir="$basedir/data" fi sbindir="$basedir/sbin" if test -f "$basedir/bin/mysqld" then libexecdir="$basedir/bin" else libexecdir="$basedir/libexec" fi libexecdir="$basedir/libexec" ;; --datadir=*) datadir="$val" datadir_set=1 ;; --log-basename=*|--hostname=*|--loose-log-basename=*) mysqld_pid_file_path="$val.pid" ;; --pid-file=*) mysqld_pid_file_path="$val" ;; --service-startup-timeout=*) service_startup_timeout="$val" ;; --user=*) user="$val"; ;; esac done } # Get arguments from the my.cnf file, # the only group, which is read from now on is [mysqld] if test -x "$bindir/my_print_defaults"; then print_defaults="$bindir/my_print_defaults" else # Try to find basedir in /etc/my.cnf conf=/etc/my.cnf print_defaults= if test -r $conf then subpat='^[^=]*basedir[^=]*=\(.*\)$' dirs=`sed -e "/$subpat/!d" -e 's//\1/' $conf` for d in $dirs do d=`echo $d | sed -e 's/[ ]//g'` if test -x "$d/bin/my_print_defaults" then print_defaults="$d/bin/my_print_defaults" break fi done fi # Hope it's in the PATH ... but I doubt it test -z "$print_defaults" && print_defaults="my_print_defaults" fi user='mysql' su_kill() { if test "$USER" = "$user"; then kill $* >/dev/null 2>&1 else su - $user -s /bin/sh -c "kill $*" >/dev/null 2>&1 fi } # # Read defaults file from 'basedir'. If there is no defaults file there # check if it's in the old (depricated) place (datadir) and read it from there # extra_args="" if test -r "$basedir/my.cnf" then extra_args="-e $basedir/my.cnf" else if test -r "$datadir/my.cnf" then extra_args="-e $datadir/my.cnf" fi fi parse_server_arguments `$print_defaults $extra_args --mysqld mysql.server` parse_server_arguments "$@" # wait for the pid file to disappear wait_for_gone () { pid="$1" # process ID of the program operating on the pid-file pid_file_path="$2" # path to the PID file. i=0 crash_protection="by checking again" while test $i -ne $service_startup_timeout ; do if su_kill -0 "$pid" ; then : # the server still runs else if test ! -s "$pid_file_path"; then # no server process and no pid-file? great, we're done! log_success_msg return 0 fi # pid-file exists, the server process doesn't. # it must've crashed, and mysqld_safe will restart it if test -n "$crash_protection"; then crash_protection="" sleep 5 continue # Check again. fi # Cannot help it log_failure_msg "The server quit without updating PID file ($pid_file_path)." return 1 # not waiting any more. fi echo $echo_n ".$echo_c" i=`expr $i + 1` sleep 1 done log_failure_msg return 1 } wait_for_ready () { i=0 while test $i -ne $service_startup_timeout ; do if $bindir/mysqladmin ping >/dev/null 2>&1; then log_success_msg return 0 elif kill -0 $! ; then : # mysqld_safe is still running else # mysqld_safe is no longer running, abort the wait loop break fi echo $echo_n ".$echo_c" i=`expr $i + 1` sleep 1 done log_failure_msg return 1 } # # Set pid file if not given # if test -z "$mysqld_pid_file_path" then mysqld_pid_file_path=$datadir/`hostname`.pid else case "$mysqld_pid_file_path" in /* ) ;; * ) mysqld_pid_file_path="$datadir/$mysqld_pid_file_path" ;; esac fi # source other config files [ -f /etc/default/mysql ] && . /etc/default/mysql [ -f /etc/sysconfig/mysql ] && . /etc/sysconfig/mysql [ -f /etc/conf.d/mysql ] && . /etc/conf.d/mysql case "$mode" in 'start') # Start daemon # Safeguard (relative paths, core dumps..) cd $basedir echo $echo_n "Starting MariaDB" if test -x $bindir/mysqld_safe then # Give extra arguments to mysqld with the my.cnf file. This script # may be overwritten at next upgrade. $bindir/mysqld_safe --datadir="$datadir" --pid-file="$mysqld_pid_file_path" "$@" & wait_for_ready; return_value=$? # Make lock for Red Hat / SuSE if test -w "$lockdir" then touch "$lock_file_path" fi exit $return_value else log_failure_msg "Couldn't find MariaDB server ($bindir/mysqld_safe)" fi ;; 'stop') # Stop daemon. We use a signal here to avoid having to know the # root password. if test -s "$mysqld_pid_file_path" then mysqld_pid=`cat "$mysqld_pid_file_path"` if su_kill -0 $mysqld_pid ; then echo $echo_n "Shutting down MariaDB" su_kill $mysqld_pid # mysqld should remove the pid file when it exits, so wait for it. wait_for_gone $mysqld_pid "$mysqld_pid_file_path"; return_value=$? else log_failure_msg "MariaDB server process #$mysqld_pid is not running!" rm "$mysqld_pid_file_path" fi # Delete lock for Red Hat / SuSE if test -f "$lock_file_path" then rm -f "$lock_file_path" fi exit $return_value else log_failure_msg "MariaDB server PID file could not be found!" fi ;; 'restart') # Stop the service and regardless of whether it was # running or not, start it again. if $0 stop "$@"; then if ! $0 start "$@"; then log_failure_msg "Failed to restart server." exit 1 fi else log_failure_msg "Failed to stop running server, so refusing to try to start." exit 1 fi ;; 'reload'|'force-reload') if test -s "$mysqld_pid_file_path" ; then read mysqld_pid < "$mysqld_pid_file_path" su_kill -HUP $mysqld_pid && log_success_msg "Reloading service MariaDB" touch "$mysqld_pid_file_path" else log_failure_msg "MariaDB PID file could not be found!" exit 1 fi ;; 'status') # First, check to see if pid file exists if test -s "$mysqld_pid_file_path" ; then read mysqld_pid < "$mysqld_pid_file_path" if su_kill -0 $mysqld_pid ; then log_success_msg "MariaDB running ($mysqld_pid)" exit 0 else log_failure_msg "MariaDB is not running, but PID file exists" exit 1 fi else # Try to find appropriate mysqld process mysqld_pid=`pgrep -f $libexecdir/mysqld` # test if multiple pids exist pid_count=`echo $mysqld_pid | wc -w` if test $pid_count -gt 1 ; then log_failure_msg "Multiple MariaDB running but PID file could not be found ($mysqld_pid)" exit 5 elif test -z $mysqld_pid ; then if test -f "$lock_file_path" ; then log_failure_msg "MariaDB is not running, but lock file ($lock_file_path) exists" exit 2 fi log_failure_msg "MariaDB is not running" exit 3 else log_failure_msg "MariaDB is running but PID file could not be found" exit 4 fi fi ;; 'configtest') # Safeguard (relative paths, core dumps..) cd $basedir echo $echo_n "Testing MariaDB configuration syntax" daemon=$bindir/mysqld if test -x $libexecdir/mysqld then daemon=$libexecdir/mysqld elif test -x $sbindir/mysqld then daemon=$sbindir/mysqld elif test -x `which mysqld` then daemon=`which mysqld` else log_failure_msg "Unable to locate the mysqld binary!" exit 1 fi help_out=`$daemon --help 2>&1`; r=$? if test "$r" != 0 ; then log_failure_msg "$help_out" log_failure_msg "There are syntax errors in the server configuration. Please fix them!" else log_success_msg "Syntax OK" fi exit $r ;; 'bootstrap') if test "$_use_systemctl" == 1 ; then log_failure_msg "Please use galera_new_cluster to start the mariadb service with --wsrep-new-cluster" exit 1 fi # Bootstrap the cluster, start the first node # that initiate the cluster echo $echo_n "Bootstrapping the cluster.. " $0 start $other_args --wsrep-new-cluster exit $? ;; *) # usage basename=`basename "$0"` echo "Usage: $basename {start|stop|restart|reload|force-reload|status|configtest|bootstrap} [ MariaDB server options ]" exit 1 ;; esac exit 0