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01.28.2008 at 01:07AM PST, ID: 23115759
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7.5

Restart mySQL if server load is more then 10

Asked by tripat in Bourne-Again Shell (bash)

Tags: ,

I am trying to write a shell script which I will later put in cron for checking server load and if server load is more then 10, it will restart mySQL.

Presently if I comment line number 7, I do get the email alert but command for mysql restart is not working. This command does work for me on SSH for restarting mysql.

Please help.
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#!/bin/bash
srvrnm=`hostname` # get the hostname of the server 
MRESTART="/sbin/service mysqld restart"
temp="/home/admin/script/tmp/mailinfo" # File storing formated output 
cur=`uptime | awk '{print $10}' | tr -d , | cut -d. -f1` # Load avg 
if [ $cur -ge 10 ]; then # Condition if 
$MRESTART>/dev/null
################### Formation for email output ##################
echo "Hi," > $temp 
echo " " >> $temp 
echo " " >> $temp 
echo "We have noticed high server load on `hostname`." >> $temp 
echo " " >> $temp 
echo " " >> $temp 
echo "Thanks," >> $temp 
echo " " >> $temp 
echo "- Linux SysAdmin." >> $temp 
###################################################### 
mail -s "Alert: Server Load `hostname`" mailme@yahoo.com < $temp 
fi
[+][-]01.28.2008 at 03:59AM PST, ID: 20758293

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[+][-]01.29.2008 at 05:22AM PST, ID: 20767483

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[+][-]01.29.2008 at 12:27PM PST, ID: 20771877

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About this solution

Zone: Bourne-Again Shell (bash)
Tags: RedHat 5.0, Shell Script
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Solution Provided By: sentner
Participating Experts: 3
Solution Grade: B
 
 
[+][-]01.31.2008 at 05:09AM PST, ID: 20786142

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