MySQL 復制檢測腳本

以下是根據網上的腳本整理，并結合實際進行改進。

#!/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

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