1#!/bin/sh 2# Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB 3# This file is public domain and comes with NO WARRANTY of any kind 4 5# MySQL (Percona Server) daemon start/stop script. 6 7# Usually this is put in /etc/init.d (at least on machines SYSV R4 based 8# systems) and linked to /etc/rc3.d/S99mysql and /etc/rc0.d/K01mysql. 9# When this is done the mysql server will be started when the machine is 10# started and shut down when the systems goes down. 11 12# Comments to support chkconfig on RedHat Linux 13# chkconfig: 2345 64 36 14# description: A very fast and reliable SQL database engine. 15 16# Comments to support LSB init script conventions 17### BEGIN INIT INFO 18# Provides: mysql 19# Required-Start: $local_fs $network $remote_fs 20# Should-Start: ypbind nscd ldap ntpd xntpd 21# Required-Stop: $local_fs $network $remote_fs 22# Default-Start: 2 3 4 5 23# Default-Stop: 0 1 6 24# Short-Description: start and stop MySQL (Percona Server) 25# Description: Percona-Server is a SQL database engine with focus on high performance. 26### END INIT INFO 27 28# If you install MySQL on some other places than @prefix@, then you 29# have to do one of the following things for this script to work: 30# 31# - Run this script from within the MySQL installation directory 32# - Create a /etc/my.cnf file with the following information: 33# [mysqld] 34# basedir=<path-to-mysql-installation-directory> 35# - Add the above to any other configuration file (for example ~/.my.ini) 36# and copy my_print_defaults to /usr/bin 37# - Add the path to the mysql-installation-directory to the basedir variable 38# below. 39# 40# If you want to affect other MySQL variables, you should make your changes 41# in the /etc/my.cnf, ~/.my.cnf or other MySQL configuration files. 42 43# If you change base dir, you must also change datadir. These may get 44# overwritten by settings in the MySQL configuration files. 45 46basedir= 47datadir= 48 49# Default value, in seconds, afterwhich the script should timeout waiting 50# for server start. 51# Value here is overriden by value in my.cnf. 52# 0 means don't wait at all 53# Negative numbers mean to wait indefinitely 54service_startup_timeout=900 55 56[ -e /etc/sysconfig/mysql ] && . /etc/sysconfig/mysql 57 58# Lock directory for RedHat / SuSE. 59lockdir='/var/lock/subsys' 60lock_file_path="$lockdir/mysql" 61 62# The following variables are only set for letting mysql.server find things. 63 64# Set some defaults 65mysqld_pid_file_path= 66if test -z "$basedir" 67then 68 basedir=@prefix@ 69 bindir=@bindir@ 70 if test -z "$datadir" 71 then 72 datadir=@localstatedir@ 73 fi 74 sbindir=@sbindir@ 75 libexecdir=@libexecdir@ 76else 77 bindir="$basedir/bin" 78 if test -z "$datadir" 79 then 80 datadir="$basedir/data" 81 fi 82 sbindir="$basedir/sbin" 83 libexecdir="$basedir/libexec" 84fi 85 86# datadir_set is used to determine if datadir was set (and so should be 87# *not* set inside of the --basedir= handler.) 88datadir_set= 89 90# 91# Use LSB init script functions for printing messages, if possible 92# 93lsb_functions="/lib/lsb/init-functions" 94if test -f $lsb_functions ; then 95 . $lsb_functions 96else 97 log_success_msg() 98 { 99 echo " SUCCESS! $@" 100 } 101 log_failure_msg() 102 { 103 echo " ERROR! $@" 104 } 105fi 106 107PATH="/sbin:/usr/sbin:/bin:/usr/bin:$basedir/bin" 108export PATH 109 110mode=$1 # start or stop 111 112[ $# -ge 1 ] && shift 113 114 115other_args="$*" # uncommon, but needed when called from an RPM upgrade action 116 # Expected: "--skip-networking --skip-grant-tables" 117 # They are not checked here, intentionally, as it is the resposibility 118 # of the "spec" file author to give correct arguments only. 119 120case `echo "testing\c"`,`echo -n testing` in 121 *c*,-n*) echo_n= echo_c= ;; 122 *c*,*) echo_n=-n echo_c= ;; 123 *) echo_n= echo_c='\c' ;; 124esac 125 126parse_server_arguments() { 127 for arg do 128 case "$arg" in 129 --basedir=*) basedir=`echo "$arg" | sed -e 's/^[^=]*=//'` 130 bindir="$basedir/bin" 131 if test -z "$datadir_set"; then 132 datadir="$basedir/data" 133 fi 134 sbindir="$basedir/sbin" 135 libexecdir="$basedir/libexec" 136 ;; 137 --datadir=*) datadir=`echo "$arg" | sed -e 's/^[^=]*=//'` 138 datadir_set=1 139 ;; 140 --pid-file=*) mysqld_pid_file_path=`echo "$arg" | sed -e 's/^[^=]*=//'` ;; 141 --service-startup-timeout=*) service_startup_timeout=`echo "$arg" | sed -e 's/^[^=]*=//'` ;; 142 esac 143 done 144} 145 146wait_for_pid () { 147 verb="$1" # created | removed 148 pid="$2" # process ID of the program operating on the pid-file 149 pid_file_path="$3" # path to the PID file. 150 151 i=0 152 avoid_race_condition="by checking again" 153 154 while test $i -ne $service_startup_timeout ; do 155 156 case "$verb" in 157 'created') 158 # wait for a PID-file to pop into existence. 159 test -s "$pid_file_path" && i='' && break 160 ;; 161 'removed') 162 # wait for this PID-file to disappear 163 test ! -s "$pid_file_path" && i='' && break 164 ;; 165 *) 166 echo "wait_for_pid () usage: wait_for_pid created|removed pid pid_file_path" 167 exit 1 168 ;; 169 esac 170 171 # if server isn't running, then pid-file will never be updated 172 if test -n "$pid"; then 173 if kill -0 "$pid" 2>/dev/null; then 174 : # the server still runs 175 else 176 # The server may have exited between the last pid-file check and now. 177 if test -n "$avoid_race_condition"; then 178 avoid_race_condition="" 179 continue # Check again. 180 fi 181 182 # there's nothing that will affect the file. 183 log_failure_msg "The server quit without updating PID file ($pid_file_path)." 184 return 1 # not waiting any more. 185 fi 186 fi 187 188 echo $echo_n ".$echo_c" 189 i=`expr $i + 1` 190 sleep 1 191 192 done 193 194 if test -z "$i" ; then 195 log_success_msg 196 return 0 197 else 198 log_failure_msg 199 return 1 200 fi 201} 202 203# Get arguments from the my.cnf file, 204# the only group, which is read from now on is [mysqld] 205if test -x "$bindir/my_print_defaults"; then 206 print_defaults="$bindir/my_print_defaults" 207else 208 # Try to find basedir in /etc/my.cnf 209 conf=/etc/my.cnf 210 print_defaults= 211 if test -r $conf 212 then 213 subpat='^[^=]*basedir[^=]*=\(.*\)$' 214 dirs=`sed -e "/$subpat/!d" -e 's//\1/' $conf` 215 for d in $dirs 216 do 217 d=`echo $d | sed -e 's/[ ]//g'` 218 if test -x "$d/bin/my_print_defaults" 219 then 220 print_defaults="$d/bin/my_print_defaults" 221 break 222 fi 223 done 224 fi 225 226 # Hope it's in the PATH ... but I doubt it 227 test -z "$print_defaults" && print_defaults="my_print_defaults" 228fi 229 230# 231# Read defaults file from 'basedir'. If there is no defaults file there 232# check if it's in the old (depricated) place (datadir) and read it from there 233# 234 235extra_args="" 236if test -r "$basedir/my.cnf" 237then 238 extra_args="-e $basedir/my.cnf" 239else 240 if test -r "$datadir/my.cnf" 241 then 242 extra_args="-e $datadir/my.cnf" 243 fi 244fi 245 246parse_server_arguments `$print_defaults $extra_args mysqld server mysql_server mysql.server` 247 248# 249# Set pid file if not given 250# 251if test -z "$mysqld_pid_file_path" 252then 253 mysqld_pid_file_path=$datadir/`@HOSTNAME@`.pid 254else 255 case "$mysqld_pid_file_path" in 256 /* ) ;; 257 * ) mysqld_pid_file_path="$datadir/$mysqld_pid_file_path" ;; 258 esac 259fi 260 261case "$mode" in 262 'start') 263 # Start daemon 264 265 # Safeguard (relative paths, core dumps..) 266 cd $basedir 267 268 echo $echo_n "Starting MySQL (Percona Server)" 269 if test -x $bindir/mysqld_safe 270 then 271 # Give extra arguments to mysqld with the my.cnf file. This script 272 # may be overwritten at next upgrade. 273 $bindir/mysqld_safe --datadir="$datadir" --pid-file="$mysqld_pid_file_path" $other_args >/dev/null & 274 wait_for_pid created "$!" "$mysqld_pid_file_path"; return_value=$? 275 276 # Make lock for RedHat / SuSE 277 if test -w "$lockdir" 278 then 279 touch "$lock_file_path" 280 fi 281 282 exit $return_value 283 else 284 log_failure_msg "Couldn't find MySQL server ($bindir/mysqld_safe)" 285 fi 286 ;; 287 288 'stop') 289 # Stop daemon. We use a signal here to avoid having to know the 290 # root password. 291 292 if test -s "$mysqld_pid_file_path" 293 then 294 mysqld_pid=`cat "$mysqld_pid_file_path"` 295 296 if (kill -0 $mysqld_pid 2>/dev/null) 297 then 298 echo $echo_n "Shutting down MySQL (Percona Server)" 299 kill $mysqld_pid 300 # mysqld should remove the pid file when it exits, so wait for it. 301 wait_for_pid removed "$mysqld_pid" "$mysqld_pid_file_path"; return_value=$? 302 else 303 log_failure_msg "MySQL (Percona Server) server process #$mysqld_pid is not running!" 304 rm "$mysqld_pid_file_path" 305 fi 306 307 # Delete lock for RedHat / SuSE 308 if test -f "$lock_file_path" 309 then 310 rm -f "$lock_file_path" 311 fi 312 exit $return_value 313 else 314 log_failure_msg "MySQL (Percona Server) PID file could not be found!" 315 fi 316 ;; 317 318 'restart') 319 # Stop the service and regardless of whether it was 320 # running or not, start it again. 321 if $0 stop $other_args; then 322 $0 start $other_args 323 else 324 log_failure_msg "Failed to stop running server, so refusing to try to start." 325 exit 1 326 fi 327 ;; 328 329 'reload'|'force-reload') 330 if test -s "$mysqld_pid_file_path" ; then 331 read mysqld_pid < "$mysqld_pid_file_path" 332 kill -HUP $mysqld_pid && log_success_msg "Reloading service MySQL (Percona Server)" 333 touch "$mysqld_pid_file_path" 334 else 335 log_failure_msg "MySQL (Percona Server) PID file could not be found!" 336 exit 1 337 fi 338 ;; 339 'status') 340 # First, check to see if pid file exists 341 if test -s "$mysqld_pid_file_path" ; then 342 read mysqld_pid < "$mysqld_pid_file_path" 343 if kill -0 $mysqld_pid 2>/dev/null ; then 344 log_success_msg "MySQL (Percona Server) running ($mysqld_pid)" 345 exit 0 346 else 347 log_failure_msg "MySQL (Percona Server) is not running, but PID file exists" 348 exit 1 349 fi 350 else 351 # Try to find appropriate mysqld process 352 mysqld_pid=`@PIDOF@ $libexecdir/mysqld` 353 354 # test if multiple pids exist 355 pid_count=`echo $mysqld_pid | wc -w` 356 if test $pid_count -gt 1 ; then 357 log_failure_msg "Multiple MySQL running but PID file could not be found ($mysqld_pid)" 358 exit 5 359 elif test -z $mysqld_pid ; then 360 if test -f "$lock_file_path" ; then 361 log_failure_msg "MySQL (Percona Server) is not running, but lock file ($lock_file_path) exists" 362 exit 2 363 fi 364 log_failure_msg "MySQL (Percona Server) is not running" 365 exit 3 366 else 367 log_failure_msg "MySQL (Percona Server) is running but PID file could not be found" 368 exit 4 369 fi 370 fi 371 ;; 372 *) 373 # usage 374 basename=`basename "$0"` 375 echo "Usage: $basename {start|stop|restart|reload|force-reload|status} [ MySQL (Percona Server) options ]" 376 exit 1 377 ;; 378esac 379 380exit 0 381