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#! /bin/bash 
#
#
#
#监控mysql主从同步状态
#
#
#

STATE_OK=0       #正常   
STATE_WARNING=1  #警告
STATE_CRITICAL=2 #危险
STATE_UNKNOWN=3 #未知

SLAVE_IO_STATUS=0
SLAVE_SQL_STATUS=0
MYSQL=$(which mysql)
SLAVE_IO=`$MYSQL -e "show slave status\G"|grep -i Slave_IO_Running |awk -F: '{print $2}'`
SLAVE_SQL=`$MYSQL -e "show slave status\G"|grep -i Slave_SQL_Running|awk -F: '{print $2}'`
IO_ERROR=`$MYSQL -e "show slave status\G"|grep -i Last_IO_Error|awk -F: '{print $2}'`
SQL_ERROR=`$MYSQL -e "show slave status\G"|grep -i Last_SQL_Error|awk -F: '{print $2}'`

#if [ "`echo ${SLAVE_IO%% .*}`" == "Yes" ];then
#   echo "slave_io is OK"
if [ "`echo ${SLAVE_IO%% .*}`" == "No" ];then
    #echo "slave_io is $IO_ERROR"
    SLAVE_IO_STATUS=2
fi
#if [ "`echo ${SLAVE_SQL%% .*}`" == "Yes" ];then
#   echo "slave_sql is OK"
if [ "`echo ${SLAVE_SQL%% .*}`" == "No" ];then
    #echo "slave_sql is $SQL_ERROR"
    SLAVE_SQL_STATUS=2
fi

if [ $SLAVE_IO_STATUS -ne 0 -o $SLAVE_SQL_STATUS -ne 0 ];then
    echo "error $IO_ERROR $SQL_ERROR"
    exit $STATE_CRITICAL
else
    echo "SLAVE STATUS OK"
    exit $STATE_OK
fi