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1c3f9ce727
For systems running MySQL through heartbeat, it is imperitive that the startup scripts not only return correct return values, but do not return until success or failure has been determined. This is a different behavior than is typically wanted for the startup of a normal machine. This patch adds support for a timeout variable for mysql.server. Read from my.cnf, this variable defaults to 900 (the current default). A value of 0 means not to wait at all for startup confirmation. A negative value means to wait forever.
379 lines
9.9 KiB
Bash
379 lines
9.9 KiB
Bash
#!/bin/sh
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# Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB
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# This file is public domain and comes with NO WARRANTY of any kind
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# MySQL daemon start/stop script.
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# Usually this is put in /etc/init.d (at least on machines SYSV R4 based
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# systems) and linked to /etc/rc3.d/S99mysql and /etc/rc0.d/K01mysql.
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# When this is done the mysql server will be started when the machine is
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# started and shut down when the systems goes down.
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# Comments to support chkconfig on RedHat Linux
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# chkconfig: 2345 64 36
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# description: A very fast and reliable SQL database engine.
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# Comments to support LSB init script conventions
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### BEGIN INIT INFO
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# Provides: mysql
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# Required-Start: $local_fs $network $remote_fs
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# Should-Start: ypbind nscd ldap ntpd xntpd
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# Required-Stop: $local_fs $network $remote_fs
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: start and stop MySQL
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# Description: MySQL is a very fast and reliable SQL database engine.
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### END INIT INFO
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# If you install MySQL on some other places than @prefix@, then you
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# have to do one of the following things for this script to work:
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#
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# - Run this script from within the MySQL installation directory
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# - Create a /etc/my.cnf file with the following information:
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# [mysqld]
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# basedir=<path-to-mysql-installation-directory>
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# - Add the above to any other configuration file (for example ~/.my.ini)
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# and copy my_print_defaults to /usr/bin
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# - Add the path to the mysql-installation-directory to the basedir variable
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# below.
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#
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# If you want to affect other MySQL variables, you should make your changes
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# in the /etc/my.cnf, ~/.my.cnf or other MySQL configuration files.
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# If you change base dir, you must also change datadir. These may get
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# overwritten by settings in the MySQL configuration files.
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basedir=
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datadir=
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# Default value, in seconds, afterwhich the script should timeout waiting
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# for server start.
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# Value here is overriden by value in my.cnf.
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# 0 means don't wait at all
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# Negative numbers mean to wait indefinitely
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service_startup_timeout=900
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# The following variables are only set for letting mysql.server find things.
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# Set some defaults
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pid_file=
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server_pid_file=
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use_mysqld_safe=1
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user=@MYSQLD_USER@
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if test -z "$basedir"
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then
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basedir=@prefix@
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bindir=@bindir@
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if test -z "$datadir"
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then
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datadir=@localstatedir@
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fi
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sbindir=@sbindir@
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libexecdir=@libexecdir@
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else
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bindir="$basedir/bin"
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if test -z "$datadir"
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then
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datadir="$basedir/data"
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fi
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sbindir="$basedir/sbin"
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libexecdir="$basedir/libexec"
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fi
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# datadir_set is used to determine if datadir was set (and so should be
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# *not* set inside of the --basedir= handler.)
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datadir_set=
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#
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# Use LSB init script functions for printing messages, if possible
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#
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lsb_functions="/lib/lsb/init-functions"
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if test -f $lsb_functions ; then
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. $lsb_functions
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else
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log_success_msg()
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{
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echo " SUCCESS! $@"
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}
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log_failure_msg()
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{
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echo " ERROR! $@"
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}
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fi
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PATH=/sbin:/usr/sbin:/bin:/usr/bin:$basedir/bin
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export PATH
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mode=$1 # start or stop
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shift
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other_args="$*" # uncommon, but needed when called from an RPM upgrade action
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# Expected: "--skip-networking --skip-grant-tables"
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# They are not checked here, intentionally, as it is the resposibility
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# of the "spec" file author to give correct arguments only.
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case `echo "testing\c"`,`echo -n testing` in
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*c*,-n*) echo_n= echo_c= ;;
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*c*,*) echo_n=-n echo_c= ;;
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*) echo_n= echo_c='\c' ;;
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esac
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parse_server_arguments() {
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for arg do
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case "$arg" in
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--basedir=*) basedir=`echo "$arg" | sed -e 's/^[^=]*=//'`
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bindir="$basedir/bin"
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if test -z "$datadir_set"; then
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datadir="$basedir/data"
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fi
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sbindir="$basedir/sbin"
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libexecdir="$basedir/libexec"
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;;
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--datadir=*) datadir=`echo "$arg" | sed -e 's/^[^=]*=//'`
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datadir_set=1
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;;
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--user=*) user=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
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--pid-file=*) server_pid_file=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
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--service-startup-timeout=*) service_startup_timeout=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
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--use-mysqld_safe) use_mysqld_safe=1;;
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--use-manager) use_mysqld_safe=0;;
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esac
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done
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}
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parse_manager_arguments() {
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for arg do
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case "$arg" in
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--pid-file=*) pid_file=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
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--user=*) user=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
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esac
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done
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}
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wait_for_pid () {
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i=0
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while test $i -ne $service_startup_timeout ; do
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sleep 1
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case "$1" in
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'created')
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test -s $pid_file && i='' && break
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kill -0 $2 || break # if the program goes away, stop waiting
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;;
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'removed')
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test ! -s $pid_file && i='' && break
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;;
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*)
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echo "wait_for_pid () usage: wait_for_pid created|removed"
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exit 1
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;;
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esac
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echo $echo_n ".$echo_c"
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i=`expr $i + 1`
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done
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if test -z "$i" ; then
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log_success_msg
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return 0
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else
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log_failure_msg
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return 1
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fi
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}
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# Get arguments from the my.cnf file,
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# the only group, which is read from now on is [mysqld]
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if test -x ./bin/my_print_defaults
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then
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print_defaults="./bin/my_print_defaults"
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elif test -x $bindir/my_print_defaults
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then
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print_defaults="$bindir/my_print_defaults"
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elif test -x $bindir/mysql_print_defaults
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then
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print_defaults="$bindir/mysql_print_defaults"
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else
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# Try to find basedir in /etc/my.cnf
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conf=/etc/my.cnf
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print_defaults=
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if test -r $conf
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then
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subpat='^[^=]*basedir[^=]*=\(.*\)$'
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dirs=`sed -e "/$subpat/!d" -e 's//\1/' $conf`
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for d in $dirs
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do
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d=`echo $d | sed -e 's/[ ]//g'`
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if test -x "$d/bin/my_print_defaults"
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then
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print_defaults="$d/bin/my_print_defaults"
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break
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fi
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if test -x "$d/bin/mysql_print_defaults"
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then
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print_defaults="$d/bin/mysql_print_defaults"
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break
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fi
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done
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fi
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# Hope it's in the PATH ... but I doubt it
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test -z "$print_defaults" && print_defaults="my_print_defaults"
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fi
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#
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# Read defaults file from 'basedir'. If there is no defaults file there
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# check if it's in the old (depricated) place (datadir) and read it from there
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#
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extra_args=""
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if test -r "$basedir/my.cnf"
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then
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extra_args="-e $basedir/my.cnf"
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else
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if test -r "$datadir/my.cnf"
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then
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extra_args="-e $datadir/my.cnf"
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fi
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fi
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parse_server_arguments `$print_defaults $extra_args mysqld server mysql_server mysql.server`
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# Look for the pidfile
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parse_manager_arguments `$print_defaults $extra_args manager`
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#
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# Set pid file if not given
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#
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if test -z "$pid_file"
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then
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pid_file=$datadir/mysqlmanager-`@HOSTNAME@`.pid
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else
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case "$pid_file" in
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/* ) ;;
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* ) pid_file="$datadir/$pid_file" ;;
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esac
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fi
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if test -z "$server_pid_file"
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then
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server_pid_file=$datadir/`@HOSTNAME@`.pid
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else
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case "$server_pid_file" in
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/* ) ;;
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* ) server_pid_file="$datadir/$server_pid_file" ;;
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esac
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fi
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# Safeguard (relative paths, core dumps..)
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cd $basedir
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case "$mode" in
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'start')
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# Start daemon
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manager=$bindir/mysqlmanager
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if test -x $libexecdir/mysqlmanager
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then
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manager=$libexecdir/mysqlmanager
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elif test -x $sbindir/mysqlmanager
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then
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manager=$sbindir/mysqlmanager
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fi
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echo $echo_n "Starting MySQL"
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if test -x $manager -a "$use_mysqld_safe" = "0"
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then
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if test -n "$other_args"
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then
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log_failure_msg "MySQL manager does not support options '$other_args'"
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exit 1
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fi
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# Give extra arguments to mysqld with the my.cnf file. This script may
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# be overwritten at next upgrade.
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$manager --user=$user --pid-file=$pid_file >/dev/null 2>&1 &
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wait_for_pid created $!; return_value=$?
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# Make lock for RedHat / SuSE
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if test -w /var/lock/subsys
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then
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touch /var/lock/subsys/mysqlmanager
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fi
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exit $return_value
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elif test -x $bindir/mysqld_safe
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then
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# Give extra arguments to mysqld with the my.cnf file. This script
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# may be overwritten at next upgrade.
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pid_file=$server_pid_file
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$bindir/mysqld_safe --datadir=$datadir --pid-file=$server_pid_file $other_args >/dev/null 2>&1 &
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wait_for_pid created $!; return_value=$?
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# Make lock for RedHat / SuSE
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if test -w /var/lock/subsys
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then
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touch /var/lock/subsys/mysql
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fi
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exit $return_value
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else
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log_failure_msg "Couldn't find MySQL manager or server"
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fi
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;;
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'stop')
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# Stop daemon. We use a signal here to avoid having to know the
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# root password.
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# The RedHat / SuSE lock directory to remove
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lock_dir=/var/lock/subsys/mysqlmanager
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# If the manager pid_file doesn't exist, try the server's
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if test ! -s "$pid_file"
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then
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pid_file=$server_pid_file
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lock_dir=/var/lock/subsys/mysql
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fi
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if test -s "$pid_file"
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then
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mysqlmanager_pid=`cat $pid_file`
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echo $echo_n "Shutting down MySQL"
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kill $mysqlmanager_pid
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# mysqlmanager should remove the pid_file when it exits, so wait for it.
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wait_for_pid removed; return_value=$?
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# delete lock for RedHat / SuSE
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if test -f $lock_dir
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then
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rm -f $lock_dir
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fi
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exit $return_value
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else
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log_failure_msg "MySQL manager or server PID file could not be found!"
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fi
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;;
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'restart')
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# Stop the service and regardless of whether it was
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# running or not, start it again.
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if $0 stop $other_args; then
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$0 start $other_args
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else
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log_failure_msg "Failed to stop running server, so refusing to try to start."
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exit 1
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fi
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;;
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'reload')
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if test -s "$server_pid_file" ; then
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mysqld_pid=`cat $server_pid_file`
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kill -HUP $mysqld_pid && log_success_msg "Reloading service MySQL"
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touch $server_pid_file
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else
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log_failure_msg "MySQL PID file could not be found!"
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fi
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;;
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*)
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# usage
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echo "Usage: $0 {start|stop|restart|reload} [ MySQL server options ]"
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exit 1
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;;
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esac
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exit 0
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