How to get “requests per second” for Apache in Linux?

Question

In Windows for ASP, you can get it perfmon, but...

How to get \"requests per second\" for Apache in Linux?

Answer 1

In realtime, or can you use mod_status?

And apparently, there is a version of top for apache...

Answer 2

I wrote a set of Perl scripts that show the average requests-per-second for the past 1, 5 and 15 minutes (like top). It's at https://gist.github.com/1040144 .

Answer 3

To sum up, you can use mod_status and apachetop.

Alternatively, you can use Adam Franco's and Jon Daniel's nice scripts to have a live look.

If you would like to have a look at a partiular date and hour, you can issue this little command:

grep "29/Oct/2014:12" /var/log/apache2/example.com.log | cut -d[ -f2 | cut -d] -f1 | awk -F: '{print $2":"$3}' | sort -nk1 -nk2 | uniq -c | awk '{ if ($1 > 10) print $0}'

Replace with the date and hour you are interested and also with the proper pathfilename of the log file.

It will print out something like:

1913 12:47
 226 12:48
 554 12:49
 918 12:50

There is a nice article here with more options on using a combination of awk, cut and uniq commands to get quick stats of the kind.

Answer 4

Here is a short bash script I made up to sample the request rate (based on dicroce's suggestion of using wc -l on the log file).

#!/bin/sh

##############################################################################
# This script will monitor the number of lines in a log file to determine the
# number of requests per second.
#
# Example usage:
# reqs-per-sec -f 15 -i /var/www/http/access.log
#
# Author: Adam Franco
# Date: 2009-12-11
# License: http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
##############################################################################

usage="Usage: `basename $0` -f <frequency in seconds, min 1, default 60> -l <log file>"

# Set up options
while getopts ":l:f:" options; do
 case $options in
 l ) logFile=$OPTARG;;
 f ) frequency=$OPTARG;;
 \? ) echo -e $usage
  exit 1;;
 * ) echo -e $usage
  exit 1;;

 esac
done

# Test for logFile
if [  ! -n "$logFile" ]
then
 echo -e $usage
 exit 1
fi

# Test for frequency
if [  ! -n "$frequency" ]
then
 frequency=60
fi

# Test that frequency is an integer
if [  $frequency -eq $frequency 2> /dev/null ]
then
 :
else
 echo -e $usage
 exit 3
fi

# Test that frequency is an integer
if [  $frequency -lt 1 ]
then
 echo -e $usage
 exit 3
fi

if [ ! -e "$logFile" ]
then
 echo "$logFile does not exist."
 echo 
 echo -e $usage
 exit 2
fi

lastCount=`wc -l $logFile | sed 's/\([0-9]*\).*/\1/'`
while true
do
 newCount=`wc -l $logFile | sed 's/\([0-9]*\).*/\1/'`
 diff=$(( newCount - lastCount ))
 rate=$(echo "$diff / $frequency" |bc -l)
 echo $rate
 lastCount=$newCount
 sleep $frequency
done

Answer 5

I think mod_status can do it ...

http://httpd.apache.org/docs/2.0/mod/mod_status.html

You can also use zenoss to collect data from mod_status using the community apache plugin.

http://www.zenoss.com/

Answer 6

Script shows inconsistent numbers. -f parameter affects output a lot! and first reading is not accurate either.

I ended up using:

while true; do tail -n0 -f access.log>/tmp/tmp.log & sleep 2; kill $! ; wc -l /tmp/tmp.log | cut -c-2; done 2>/dev/null

Found here.