Monitoring Apache2.x from zabbix etc.

apache

#!/bin/bash

export HOME=/etc/zabbix/externalscripts/
result=0

if [ "$1" == "CPULoadUser" ] ; then
  load=`/usr/sbin/apache2ctl status | /bin/grep "CPU load" | /usr/bin/awk '{print $3}'`
  result=${load:1}
elif [ "$1" == "CPULoadSystem" ] ; then
  load=`/usr/sbin/apache2ctl status | /bin/grep "CPU load" | /usr/bin/awk '{print $4}'`
  result=${load:1}
elif [ "$1" == "CPULoadPercentage" ] ; then
  load=`/usr/sbin/apache2ctl status | /bin/grep "CPU load" | /usr/bin/awk '{print $8}'`
  result=${load:0:${#load}-1}
elif [ "$1" == "RequestPerSecond" ] ; then
  result=`/usr/sbin/apache2ctl status | /bin/grep "requests/sec" | /usr/bin/awk '{print $1}'`
elif [ "$1" == "BytePerSecond" ] ; then
  result=`/usr/sbin/apache2ctl status | /bin/grep "B/second" | /usr/bin/awk '{multiplier=1;if (substr($5,1,1)!="B") multiplier*=1024; if (substr($5,1,1)=="M") multiplier*=1024; if (substr($5,1,1)=="G") multiplier*=1024*1024; print $4*multiplier}'`
elif [ "$1" == "BytePerRequest" ] ; then
  result=`/usr/sbin/apache2ctl status | /bin/grep "B/request" | /usr/bin/awk '{multiplier=1;if (substr($8,1,1)!="B") multiplier*=1024; if (substr($8,1,1)=="M") multiplier*=1024; if (substr($8,1,1)=="G") multiplier*=1024*1024; print $7*multiplier}'`
elif [ "$1" == "BusyWorker" ] ; then
  result=`/usr/sbin/apache2ctl status | /bin/grep "requests currently being processed," | /usr/bin/awk '{print $1}'`
elif [ "$1" == "IdleWorker" ] ; then
  result=`/usr/sbin/apache2ctl status | /bin/grep "idle workers" | /usr/bin/awk '{print $6}'`
elif [ "$1" == "WaitingForConnection" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "WaitingForConnection" | /usr/bin/awk '{print $3}'`
elif [ "$1" == "StartingUp" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "StartingUp" | /usr/bin/awk '{print $3}'`
elif [ "$1" == "ReadingRequest" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "ReadingRequest" | /usr/bin/awk '{print $3}'`
elif [ "$1" == "SendingReply" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "SendingReply" | /usr/bin/awk '{print $3}'`
elif [ "$1" == "Keepalive" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "Keepalive" | /usr/bin/awk '{print $3}'`
elif [ "$1" == "DNSLookup" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "DNSLookup" | /usr/bin/awk '{print $3}'`
elif [ "$1" == "ClosingConnection" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "ClosingConnection" | /usr/bin/awk '{print $3}'`
elif [ "$1" == "Logging" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "Logging" | /usr/bin/awk '{print $3}'`
elif [ "$1" == "GracefullyFinishing" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "GracefullyFinishing" | /usr/bin/awk '{print $3}'`
elif [ "$1" == "IdleCleanup" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "IdleCleanup" | /usr/bin/awk '{print $3}'`
elif [ "$1" == "OpenSlot" ] ; then
  result=`/usr/sbin/apache2ctl status | /usr/bin/awk -f /etc/zabbix/externalscripts/check_worker.awk | /bin/grep "OpenSlot" | /usr/bin/awk '{print $3}'`
fi

echo $result;

check_worker.awk

# /etc/zabbix/externalscripts/check_worker.awk
BEGIN {
  Mode="start";
  Key="_SRWKDCLGI.";
  Description[0]="WaitingForConnection";
  Description[1]="StartingUp";
  Description[2]="ReadingRequest";
  Description[3]="SendingReply";
  Description[4]="Keepalive";
  Description[5]="DNSLookup";
  Description[6]="ClosingConnection";
  Description[7]="Logging";
  Description[8]="GracefullyFinishing";
  Description[9]="IdleCleanup";
  Description[10]="OpenSlot";
  for (Position = 0 ; Position <= 10 ; Position++)
    Value[Position] = 0;
}
{
  if (Mode=="start") {
    if (/ idle workers/)
      Mode="Processing";
  }
  else if (Mode=="Processing") {
    if (/Scoreboard Key:/)
      Mode="End";
    else
      for (Post = 0; Post <= length;Post++) {
        Slot=index(Key, substr($0, Post, 1));
        if (Slot > 0)
          Value[Slot-1]+=1;
      }
  }
}

END {
  for ( Position = 0 ; Position <= 10 ; Position++)
    print Description[Position] " : " Value[Position];
}