#!/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.
if [ -e /usr/share/lve/dbgovernor/utils/mysql_export ]; then
. /usr/share/lve/dbgovernor/utils/mysql_export
else
get_limit(){
return
}
set_big_limit(){
return
}
set_old_limit(){
return
}
fi
# Set some defaults
mariadbd_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 "$basedir/bin/mariadbd"
then
libexecdir="$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 "$basedir/bin/mariadbd"
then
libexecdir="$basedir/bin"
else
libexecdir="$basedir/libexec"
fi
libexecdir="$basedir/libexec"
;;
--datadir=*) datadir="$val"
datadir_set=1
;;
--log-basename=*|--hostname=*|--loose-log-basename=*)
mariadbd_pid_file_path="$val.pid"
;;
--pid-file=*) mariadbd_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="--defaults-extra-file= $basedir/my.cnf"
else
if test -r "$datadir/my.cnf"
then
extra_args="--defaults-extra-file= $datadir/my.cnf"
fi
fi
parse_server_arguments `$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 $i + 1`
sleep 1
done
log_failure_msg
return 1
}
#
# Set pid file if not given
#
if test -z "$mariadbd_pid_file_path"
then
mariadbd_pid_file_path=$datadir/`uname -n`.pid
else
case "$mariadbd_pid_file_path" in
/* ) ;;
* ) mariadbd_pid_file_path="$datadir/$mariadbd_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="$mariadbd_pid_file_path" "$@" &
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.
get_limit
set_big_limit
sleep 2
if test -s "$mariadbd_pid_file_path"
then
mariadbd_pid=`cat "$mariadbd_pid_file_path"`
if su_kill -0 $mariadbd_pid ; then
echo $echo_n "Shutting down MariaDB"
su_kill $mariadbd_pid
# mysqld should remove the pid file when it exits, so wait for it.
wait_for_gone $mariadbd_pid "$mariadbd_pid_file_path"; return_value=$?
else
log_failure_msg "MariaDB server process #$mariadbd_pid is not running!"
rm "$mariadbd_pid_file_path"
fi
# Delete lock for Red Hat / SuSE
if test -f "$lock_file_path"
then
rm -f "$lock_file_path"
fi
set_old_limit
exit $return_value
else
log_failure_msg "MariaDB server PID file could not be found!"
fi
set_old_limit
;;
'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')
get_limit
set_big_limit
sleep 2
if test -s "$mariadbd_pid_file_path" ; then
read mariadbd_pid < "$mariadbd_pid_file_path"
su_kill -HUP $mariadbd_pid && log_success_msg "Reloading service MariaDB"
touch "$mariadbd_pid_file_path"
else
log_failure_msg "MariaDB PID file could not be found!"
set_old_limit
exit 1
fi
set_old_limit
;;
'status')
# First, check to see if pid file exists
if test -s "$mariadbd_pid_file_path" ; then
read mariadbd_pid < "$mariadbd_pid_file_path"
if su_kill -0 $mariadbd_pid ; then
log_success_msg "MariaDB running ($mariadbd_pid)"
exit 0
else
log_failure_msg "MariaDB is not running, but PID file exists"
exit 1
fi
else
# Try to find appropriate mariadbd process
mariadbd_pid=`pgrep -f $libexecdir/mariadbd`
# test if multiple pids exist
pid_count=`echo $mariadbd_pid | wc -w`
if test $pid_count -gt 1 ; then
log_failure_msg "Multiple MariaDB running but PID file could not be found ($mariadbd_pid)"
exit 5
elif test -z $mariadbd_pid ; then
if test -f "$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/mariadbd
if test -x $libexecdir/mariadbd
then
daemon=$libexecdir/mariadbd
elif test -x $sbindir/mariadbd
then
daemon=$sbindir/mariadbd
elif test -x `which mariadbd`
then
daemon=`which mariadbd`
else
log_failure_msg "Unable to locate the mariadbd 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
Mini Shell