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    <p>We are using the following bash script. You could do the same idea in php and web base the code.</p> <pre class="lang-sh prettyprint-override"><code>#!/bin/sh ## Joel Chaney## ## joel.chaney@mongoosemetrics.com (look at robots.txt) ## ## 2012-02-03 ## repeat_alert_interval=30 # minutes for lock file life lock_file=/tmp/slave_alert.lck # location of lock file EMAIL=YOURNAME@YOURCOMPANY.DOM # where to send alerts SSTATUS=/tmp/sstatus # location of sstatus file ### Code -- do not edit below ## NODE=`uname -n` ## Check if alert is locked ## function check_alert_lock () { if [ -f $lock_file ] ; then current_file=`find $lock_file -cmin -$repeat_alert_interval` if [ -n "$current_file" ] ; then # echo "Current lock file found" return 1 else # echo "Expired lock file found" rm $lock_file return 0 fi else touch $lock_file return 0 fi } SLAVE=mysql $SLAVE -e 'SHOW SLAVE STATUS\G' &gt; $SSTATUS function extract_value { FILENAME=$1 VAR=$2 grep -w $VAR $FILENAME | awk '{print $2}' } Master_Binlog=$(extract_value $SSTATUS Master_Log_File ) Master_Position=$(extract_value $SSTATUS Read_Master_Log_Pos ) Master_Host=$(extract_value $SSTATUS Master_Host) Master_Port=$(extract_value $SSTATUS Master_Port) Master_Log_File=$(extract_value $SSTATUS Master_Log_File) Read_Master_Log_Pos=$(extract_value $SSTATUS Read_Master_Log_Pos) Slave_IO_Running=$(extract_value $SSTATUS Slave_IO_Running) Slave_SQL_Running=$(extract_value $SSTATUS Slave_SQL_Running) Slave_ERROR=$(extract_value $SSTATUS Last_Error) ERROR_COUNT=0 if [ "$Master_Binlog" != "$Master_Log_File" ] then ERRORS[$ERROR_COUNT]="master binlog ($Master_Binlog) and Master_Log_File ($Master_Log_File) differ" ERROR_COUNT=$(($ERROR_COUNT+1)) fi POS_DIFFERENCE=$(echo ${Master_Position}-${Read_Master_Log_Pos}|bc) if [ $POS_DIFFERENCE -gt 1000 ] then ERRORS[$ERROR_COUNT]="The slave is lagging behind of $POS_DIFFERENCE" ERROR_COUNT=$(($ERROR_COUNT+1)) fi if [ "$Slave_IO_Running" == "No" ] then ERRORS[$ERROR_COUNT]="Replication is stopped" ERROR_COUNT=$(($ERROR_COUNT+1)) fi if [ "$Slave_SQL_Running" == "No" ] then ERRORS[$ERROR_COUNT]="Replication (SQL) is stopped" ERROR_COUNT=$(($ERROR_COUNT+1)) fi if [ $ERROR_COUNT -gt 0 ] then if [ check_alert_lock == 0 ] then SUBJECT="${NODE}-ERRORS in replication" BODY='' CNT=0 while [ "$CNT" != "$ERROR_COUNT" ] do BODY="$BODY ${ERRORS[$CNT]}" CNT=$(($CNT+1)) done BODY=$BODY" \n${Slave_ERROR}" echo $BODY | mail -s "$SUBJECT" $EMAIL fi else echo "Replication OK" fi </code></pre>
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