1 vim /etc/keepalived/check_MySQL.sh
  2 #vim #!/bin/bash
  3 MYSQL=/usr/local/mysql/bin/mysql
  4 MYSQL_HOST=localhost
  5 MYSQL_USER=root
  6 MYSQL_PASSWORD=
  7 CHECK_TIME=3
  8 #mysql  is working MYSQL_OK is 1 , mysql down MYSQL_OK is 0
  9 MYSQL_OK=1
 10 function check_mysql_helth (){
 11 $MYSQL -h $MYSQL_HOST -u $MYSQL_USER -e "show status;
 
" >/dev/null 2>&1
 12 if [ $? = 0 ] ;then
 13         MYSQL_OK=1
 14 else
 15         MYSQL_OK=0
 16 fi
 17         return $MYSQL_OK
 18 }
 19 while [ $CHECK_TIME -ne 0 ]
 20 do
 21         let "CHECK_TIME -= 1"
 22         check_mysql_helth
 23         if [ $MYSQL_OK = 1 ] ; then
 24                 CHECK_TIME=0
 25
 
                 exit 0
 26         fi
 27         if [ $MYSQL_OK -eq 0 ] &&  [ $CHECK_TIME -eq 0 ]
 28         then
 29                 /etc/init.d/keepalived stop
 30                 exit 1
 31         fi
 32         sleep 1
 33 done