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Add mysql-multi.server.sh, a replacement for mysql.server that
handles running several mysqlds on one host easily. Original multi-server modifications made by Tim Bunce.
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192
support-files/mysql-multi.server.sh
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support-files/mysql-multi.server.sh
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#!/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. Multi-instance enhancements by Tim Bunce.
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# Usually this is put in /etc/init.d (at least on machines SYSV R4
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# based systems) and linked to
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# /etc/rc3.d/S99mysql.svr1
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# and /etc/rc0.d/S01mysql.svr1
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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. The '.svr1' suffix can
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# be used to identify one of a number of servers. Multiple symlinks can be
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# created, one per instance. The 'svrN' suffix can then be used to
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# prefix configuration variables in a seperate section of /etc/my.cnf.
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# See example below.
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#
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# A typical multi-instance /etc/my.cnf file would look like:
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# [mysqld]
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# basedir=...
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# set-variable = key_buffer_size=16M
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# set-variable = max_allowed_packet=1M
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# [mysql_multi_server]
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# svr1-datadir=/foo1/bar
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# svr2-datadir=/foo2/bar
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#
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# and then the /foo1/bar/my.cnf and /foo2/bar/my.cnf files
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# would contain all the *instance specific* configurations.
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#
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# This script can also be run manually in which case the server instance
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# is identified by an extra argument, for example:
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# /etc/init.d/mysql stop svr3
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#
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PATH=/sbin:/usr/sbin:/bin:/usr/bin
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export PATH
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mode=$1 # start or stop
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svr=$2 # eg 'svr1' (optional)
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if [ "$2" = "" ]
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then name=`basename $0`
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else name=$2
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fi
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# Extract identity of the server we are working with
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svr=`echo "$name" | sed -e 's/.*\<\(svr[1-9][0-9]*\)\>.*/\1/'`
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if [ "$svr" = "" ]
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then
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echo "Can't determine database svr number from name '$name'"
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exit 1
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fi
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echo "mysqld $svr $mode"
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parse_arguments() {
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for arg do
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case "$arg" in
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--basedir=*|--${svr}-basedir=*)
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basedir=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
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--datadir=*|--${svr}-basedir=*)
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datadir=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
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--pid-file=*|--${svr}-basedir=*)
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pid_file=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
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esac
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done
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}
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# Get arguments from the my.cfg file, groups [mysqld], [mysql_server],
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# and mysql_multi_server
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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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datadir=@localstatedir@
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basedir=
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pid_file=
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parse_arguments `$print_defaults $defaults mysqld mysql_server mysql_multi_server`
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if test -z "$basedir"
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then
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basedir=@prefix@
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bindir=@bindir@
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else
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bindir="$basedir/bin"
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fi
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if test -z "$pid_file"
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then
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pid_file=$datadir/`@HOSTNAME@`.pid
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else
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case "$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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# 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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if test -x $bindir/safe_mysqld
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then
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# We only need to specify datadir and pid-file here and we
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# get all other instance-specific config from $datadir/my.cnf.
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# We have to explicitly pass --defaults-extra-file because it
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# reads the config files before the command line options.
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# Also it must be first because of the way safe_mysqld works.
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$bindir/safe_mysqld --defaults-extra-file=$datadir/my.cnf \
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--datadir=$datadir --pid-file=$pid_file &
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# Make lock for RedHat / SuSE
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if test -d /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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else
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echo "Can't execute $bindir/safe_mysqld"
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fi
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;;
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'stop')
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# Stop daemon. We use a signal here to avoid having to know the
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# root password.
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if test -f "$pid_file"
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then
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mysqld_pid=`cat $pid_file`
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echo "Killing mysqld $svr with pid $mysqld_pid"
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kill $mysqld_pid
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# mysqld should remove the pid_file when it exits, so wait for it.
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sleep 1
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while [ -s $pid_file -a "$flags" != aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ]
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do
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[ -z "$flags" ] && echo "Wait for mysqld $svr to exit\c" || echo ".\c"
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flags=a$flags
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sleep 1
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done
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if [ -s $pid_file ]
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then echo " gave up waiting!"
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elif [ -n "$flags" ]
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then echo " done"
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fi
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# delete lock for RedHat / SuSE
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if test -e /var/lock/subsys/mysql
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then
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rm /var/lock/subsys/mysql
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fi
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else
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echo "No mysqld pid file found. Looked for $pid_file."
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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 [ svrN ]"
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exit 1
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;;
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esac
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