112 lines
2.4 KiB
Plaintext
112 lines
2.4 KiB
Plaintext
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#!/bin/bash
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#
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# ndbd This shell script takes care of starting and stopping
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# the MySQL Cluster data node daemon (ndbd).
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#
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# chkconfig: - 63 37
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# description: MySQL Cluster data node daemon.
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# processname: ndbd
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# config: /etc/my.cnf
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# pidfile: /var/lib/mysql-cluster/ndb_${node_id}.pid
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# Source function library.
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. /etc/rc.d/init.d/functions
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# Source networking configuration.
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. /etc/sysconfig/network
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prog="ndbd"
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# extract value of a MySQL option from config files
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# Usage: get_mysql_option SECTION VARNAME DEFAULT
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# result is returned in $result
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# We use my_print_defaults which prints all options from multiple files,
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# with the more specific ones later; hence take the last match.
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get_mysql_option(){
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result=`/usr/bin/my_print_defaults "$1" | sed -n "s/^--$2=//p" | tail -n 1`
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if [ -z "$result" ]; then
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# not found, use default
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result="$3"
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fi
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}
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get_mysql_option ndbd connect-string "nodeid=2;host=localhost:1186"
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ndbd_connect_string="$result"
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node_id=`echo "$result" | sed 's/^nodeid=\([0-9]*\);.*$/\1/'`
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connect_string=`echo "$result" | sed 's/^.*host=//'`
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pidfile="/var/lib/mysql-cluster/ndb_${node_id}.pid"
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# For SELinux we need to use 'runuser' not 'su'
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if [ -x /sbin/runuser ]
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then
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SU=runuser
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else
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SU=su
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fi
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start(){
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# all options are expected to be specified in /etc/my.cnf
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$SU -l mysql -c "/usr/libexec/ndbd" >/dev/null 2>&1
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ret=$?
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if [ $ret -eq 0 ]; then
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action $"Starting $prog: " /bin/true
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else
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action $"Starting $prog: " /bin/false
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fi
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[ $ret -eq 0 ] && touch /var/lock/subsys/ndbd
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return $ret
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}
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stop(){
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NDBD_PID=`cat "$pidfile" 2>/dev/null `
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if [ -n "$NDBD_PID" ]; then
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/usr/bin/ndb_mgm -e "$node_id STOP" "$connect_string" >/dev/null
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ret=$?
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if [ $ret -eq 0 ]; then
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rm -f /var/lock/subsys/ndbd
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rm -f "$pidfile"
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action $"Stopping $prog: " /bin/true
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else
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action $"Stopping $prog: " /bin/false
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fi
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else
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ret=1
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action $"Stopping $prog: " /bin/false
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fi
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return $ret
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}
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restart(){
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stop
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start
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}
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condrestart(){
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[ -e /var/lock/subsys/ndbd ] && restart || :
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}
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# See how we were called.
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case "$1" in
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start)
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start
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;;
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stop)
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stop
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;;
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status)
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status ndbd
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;;
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restart)
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restart
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;;
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condrestart)
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condrestart
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;;
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*)
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echo $"Usage: $0 {start|stop|status|condrestart|restart}"
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exit 1
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esac
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exit $?
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