In Windows for ASP, you can get it perfmon, but...
How to get "requests per second" for Apache in Linux?
In realtime, or can you use mod_status?
And apparently, there is a version of top for apache...
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
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.
You can use 'wc -l' on the access log to get the number of lines (which roughly corresponds to the number of requests...) Do that every minute and subtract the last value to get the delta...
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.
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.
I didn't like any of the solutions I found, so I wrote my own.
- mod_status isn't really accurate enough. It's based on how long the server is up, which in our case is normally months. What I'm looking for is traffic spikes.
- the shell script above uses a sleep() statement which isn't ideal as it takes x seconds to actually retrieve the data.
So this solution takes a particular line in the access_log 15000 requests ago, and uses the time recorded to compare with the current time.
# This check is needed because if the logs have just rolled over, then we need a minimum
# amount of data to report on.
# You will probably need to adjust the 3500000 - this is roughly the file size when the
# log file hits 15000 requests.
FILESIZE=`ls -l /var/log/httpd/access_log | awk '{print $5}' `
if [ $FILESIZE -le 3500000 ]
then
# not enough data - log file has rolled over
echo "APACHE_RPS|0"
else
# Based on 15000 requests. Depending on the location of the date field in
# your apache log file you may need to adjust the ...substr($5... bit
LASTTIME=`tail -15000 /var/log/httpd/access_log | head -1 | awk '{printf("%s\n",substr($5,2,20));}' `
APACHE_RPS=`echo $LASTTIME | gawk -vREQUESTS=15000 ' {
# convert apache datestring into time format accepted by mktime();
monthstr = substr($0,4,3);
if(monthstr == "Jan"){ monthint = "01"; }
if(monthstr == "Feb"){ monthint = "02"; }
if(monthstr == "Mar"){ monthint = "03"; }
if(monthstr == "Apr"){ monthint = "04"; }
if(monthstr == "May"){ monthint = "05"; }
if(monthstr == "Jun"){ monthint = "06"; }
if(monthstr == "Jul"){ monthint = "07"; }
if(monthstr == "Aug"){ monthint = "08"; }
if(monthstr == "Sep"){ monthint = "09"; }
if(monthstr == "Oct"){ monthint = "10"; }
if(monthstr == "Nov"){ monthint = "11"; }
if(monthstr == "Dec"){ monthint = "12"; }
mktimeformat=sprintf("%s %s %s %s %s %s [DST]\n", substr($0,8,4), monthint, substr($0,1,2), substr($0, 13,2), substr($0, 16,2), substr($0, 19,2) );
# calculate difference
difference = systime() - mktime(mktimeformat);
# printf("%s - %s = %s\n",systime(), mktime(mktimeformat), difference);
printf("%s\n",REQUESTS/difference);
} ' `
echo "APACHE_RPS|${APACHE_RPS}"
fi
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 .
mod_status is the one! if you call it with:
http://{ip}/server-status?refresh=1&auto-refresh=true
Then it auto refreshes every 2 seconds so you can see a constant realtime view :-)
来源：https://stackoverflow.com/questions/345546/how-to-get-requests-per-second-for-apache-in-linux