以下是根据网上的脚本整理，并结合实际进行改进。#!/bin/shusage=quot;$0 -hlocalhost -uroot -pxxxx -P3306quot;dbhost=quot

以下是根据网上的脚本整理，并结合实际进行改进。

#!/bin/sh

usage="$0 -hlocalhost -uroot -pxxxx -P3306"
dbhost="localhost"
dbuser=""
dbpass=""
dbport=3306

for varin in $* ; do
if [ ${varin:0:2} = '-h' ] ; then
dbhost=${varin:2}
fi
if [ ${varin:0:2} = '-u' ] ; then
dbuser=${varin:2}
fi
if [ ${varin:0:2} = '-p' ] ; then
dbpass=${varin:2}
fi

if [ ${varin:0:2} = '-P' ] ; then
dbport=${varin:2}
fi
done

echo $dbhost
echo $dbuser
echo $dbpass
echo $dbport

now=`date +"%Y%m%d%H%M%S"`
datelog=`date +"%Y-%m-%d %H:%M:%S"`
StatFile="./slave_status.$now"
checklogfile="/var/log/mysql_slavecheck.log"
echo "show slave status\G" | /usr/local/mysql/bin/mysql -u$dbuser -p$dbpass -h$dbhost -P$dbport > $StatFile

#get io_thread,sql_thread,last_errno status
#*************************** 1. row ***************************
# Slave_IO_State: Connecting to master
# Master_Host: 192.168.213.5
# Master_User: synuser
# Master_Port: 3306
# Connect_Retry: 60
# Master_Log_File: mysql-bin.000019
# Read_Master_Log_Pos: 366270403
# Relay_Log_File: Test-Web1-relay-bin.003133
# Relay_Log_Pos: 98
# Relay_Master_Log_File: mysql-bin.000019
# Slave_IO_Running: No
# Slave_SQL_Running: Yes
# Replicate_Do_DB:
# Replicate_Ignore_DB:
# Replicate_Do_Table:
# Replicate_Ignore_Table:
# Replicate_Wild_Do_Table:
#Replicate_Wild_Ignore_Table:
# Last_Errno: 0
# Last_Error:
# Skip_Counter: 0
# Exec_Master_Log_Pos: 98
# Relay_Log_Space: 98
# Until_Condition: None
# Until_Log_File:
# Until_Log_Pos: 0
# Master_SSL_Allowed: No
# Master_SSL_CA_File:
# Master_SSL_CA_Path:
# Master_SSL_Cert:
# Master_SSL_Cipher:
# Master_SSL_Key:
# Seconds_Behind_Master: NULL
IOSTAT=`grep "Slave_IO_Running" $StatFile |awk '{print $2}'`
SQLSTAT=`grep "Slave_SQL_Running" $StatFile |awk '{print $2}'`
Last_Errno=`grep "Last_Errno" $StatFile |awk '{print $2}'`
Last_Error=`grep "Last_Error" $StatFile |awk '{print $2}'`
Behind_Master=`grep "Seconds_Behind_Master" $StatFile |awk '{print $2}'`
if [ $IOSTAT = 'No' ] || [ $SQLSTAT = 'No' ] ; then
echo "Server $dbhost:$dbport Slave is down,Check Time is :$datelog " > $checklogfile

if [ $Behind_Master = 'NULL' ] ; then
echo "Server $dbhost:$dbport Slave not support slave-master,Check Time is :$datelog " >> $checklogfile
else
echo ">>Last_ErrNo:$Last_Errno" >>$checklogfile
echo ">>Last_Error:$Last_Error" >>$checklogfile
echo ">>slave is behind master $Behind seconds!" >>$checklogfile
fi
fi
/bin/rm -rf $StatFile