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| 1 | +#!/bin/bash |
| 2 | +EMAIL='' |
| 3 | +function sysstat { |
| 4 | +echo -e " |
| 5 | +##################################################################### |
| 6 | + Health Check Report (CPU,Process,Disk Usage, Memory) |
| 7 | +##################################################################### |
| 8 | + |
| 9 | + |
| 10 | +Hostname : `hostname` |
| 11 | +Kernel Version : `uname -r` |
| 12 | +Uptime : `uptime | sed 's/.*up \([^,]*\), .*/\1/'` |
| 13 | +Last Reboot Time : `who -b | awk '{print $3,$4}'` |
| 14 | + |
| 15 | + |
| 16 | + |
| 17 | +********************************************************************* |
| 18 | +CPU Load - > Threshold < 1 Normal > 1 Caution , > 2 Unhealthy |
| 19 | +********************************************************************* |
| 20 | +" |
| 21 | +MPSTAT=`which mpstat` |
| 22 | +MPSTAT=$? |
| 23 | +if [ $MPSTAT != 0 ] |
| 24 | +then |
| 25 | + echo "Please install mpstat!" |
| 26 | + echo "On Debian based systems:" |
| 27 | + echo "sudo apt-get install sysstat" |
| 28 | + echo "On RHEL based systems:" |
| 29 | + echo "yum install sysstat" |
| 30 | +else |
| 31 | +echo -e "" |
| 32 | +LSCPU=`which lscpu` |
| 33 | +LSCPU=$? |
| 34 | +if [ $LSCPU != 0 ] |
| 35 | +then |
| 36 | + RESULT=$RESULT" lscpu required to producre acqurate reults" |
| 37 | +else |
| 38 | +cpus=`lscpu | grep -e "^CPU(s):" | cut -f2 -d: | awk '{print $1}'` |
| 39 | +i=0 |
| 40 | +while [ $i -lt $cpus ] |
| 41 | +do |
| 42 | + echo "CPU$i : `mpstat -P ALL | awk -v var=$i '{ if ($3 == var ) print $4 }' `" |
| 43 | + let i=$i+1 |
| 44 | +done |
| 45 | +fi |
| 46 | +echo -e " |
| 47 | +Load Average : `uptime | awk -F'load average:' '{ print $2 }' | cut -f1 -d,` |
| 48 | + |
| 49 | +Heath Status : `uptime | awk -F'load average:' '{ print $2 }' | cut -f1 -d, | awk '{if ($1 > 2) print "Unhealthy"; else if ($1 > 1) print "Caution"; else print "Normal"}'` |
| 50 | +" |
| 51 | +fi |
| 52 | +echo -e " |
| 53 | +********************************************************************* |
| 54 | + Process |
| 55 | +********************************************************************* |
| 56 | + |
| 57 | +=> Top memory using processs/application |
| 58 | + |
| 59 | +PID %MEM RSS COMMAND |
| 60 | +`ps aux | awk '{print $2, $4, $6, $11}' | sort -k3rn | head -n 10` |
| 61 | + |
| 62 | +=> Top CPU using process/application |
| 63 | +`top b -n1 | head -17 | tail -11` |
| 64 | + |
| 65 | +********************************************************************* |
| 66 | +Disk Usage - > Threshold < 90 Normal > 90% Caution > 95 Unhealthy |
| 67 | +********************************************************************* |
| 68 | +" |
| 69 | +df -Pkh | grep -v 'Filesystem' > /tmp/df.status |
| 70 | +while read DISK |
| 71 | +do |
| 72 | + LINE=`echo $DISK | awk '{print $1,"\t",$6,"\t",$5," used","\t",$4," free space"}'` |
| 73 | + echo -e $LINE |
| 74 | + echo |
| 75 | +done < /tmp/df.status |
| 76 | +echo -e " |
| 77 | + |
| 78 | +Heath Status" |
| 79 | +echo |
| 80 | +while read DISK |
| 81 | +do |
| 82 | + USAGE=`echo $DISK | awk '{print $5}' | cut -f1 -d%` |
| 83 | + if [ $USAGE -ge 95 ] |
| 84 | + then |
| 85 | + STATUS='Unhealty' |
| 86 | + elif [ $USAGE -ge 90 ] |
| 87 | + then |
| 88 | + STATUS='Caution' |
| 89 | + else |
| 90 | + STATUS='Normal' |
| 91 | + fi |
| 92 | + |
| 93 | + LINE=`echo $DISK | awk '{print $1,"\t",$6}'` |
| 94 | + echo -ne $LINE "\t\t" $STATUS |
| 95 | + echo |
| 96 | +done < /tmp/df.status |
| 97 | +rm /tmp/df.status |
| 98 | +TOTALMEM=`free -m | head -2 | tail -1| awk '{print $2}'` |
| 99 | +TOTALBC=`echo "scale=2;if($TOTALMEM<1024 && $TOTALMEM > 0) print 0;$TOTALMEM/1024"| bc -l` |
| 100 | +USEDMEM=`free -m | head -2 | tail -1| awk '{print $3}'` |
| 101 | +USEDBC=`echo "scale=2;if($USEDMEM<1024 && $USEDMEM > 0) print 0;$USEDMEM/1024"|bc -l` |
| 102 | +FREEMEM=`free -m | head -2 | tail -1| awk '{print $4}'` |
| 103 | +FREEBC=`echo "scale=2;if($FREEMEM<1024 && $FREEMEM > 0) print 0;$FREEMEM/1024"|bc -l` |
| 104 | +TOTALSWAP=`free -m | tail -1| awk '{print $2}'` |
| 105 | +TOTALSBC=`echo "scale=2;if($TOTALSWAP<1024 && $TOTALSWAP > 0) print 0;$TOTALSWAP/1024"| bc -l` |
| 106 | +USEDSWAP=`free -m | tail -1| awk '{print $3}'` |
| 107 | +USEDSBC=`echo "scale=2;if($USEDSWAP<1024 && $USEDSWAP > 0) print 0;$USEDSWAP/1024"|bc -l` |
| 108 | +FREESWAP=`free -m | tail -1| awk '{print $4}'` |
| 109 | +FREESBC=`echo "scale=2;if($FREESWAP<1024 && $FREESWAP > 0) print 0;$FREESWAP/1024"|bc -l` |
| 110 | + |
| 111 | +echo -e " |
| 112 | +********************************************************************* |
| 113 | + Memory |
| 114 | +********************************************************************* |
| 115 | + |
| 116 | +=> Physical Memory |
| 117 | + |
| 118 | +Total\tUsed\tFree\t%Free |
| 119 | + |
| 120 | +${TOTALBC}GB\t${USEDBC}GB \t${FREEBC}GB\t$(($FREEMEM * 100 / $TOTALMEM ))% |
| 121 | + |
| 122 | +=> Swap Memory |
| 123 | + |
| 124 | +Total\tUsed\tFree\t%Free |
| 125 | + |
| 126 | +${TOTALSBC}GB\t${USEDSBC}GB\t${FREESBC}GB\t$(($FREESWAP * 100 / $TOTALSWAP ))% |
| 127 | +" |
| 128 | +} |
| 129 | +FILENAME="health-`hostname`-`date +%y%m%d`-`date +%H%M`.txt" |
| 130 | +sysstat > $FILENAME |
| 131 | +echo -e "Reported file $FILENAME generated in current directory." $RESULT |
| 132 | +if [ "$EMAIL" != '' ] |
| 133 | +then |
| 134 | + STATUS=`which mail` |
| 135 | + if [ "$?" != 0 ] |
| 136 | + then |
| 137 | + echo "The program 'mail' is currently not installed." |
| 138 | + else |
| 139 | + cat $FILENAME | mail -s "$FILENAME" $EMAIL |
| 140 | + fi |
| 141 | +fi |
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