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==Forum discussion==
==Forum discussion==
This how-to can be discussed on the forums [http://forums.contribs.org/index.php/topic,52107.0.html here]
This how-to can be discussed on the forums [http://forums.contribs.org/index.php/topic,52107.0.html here]
The rational for behind this is :
You have a database / source of information that you would like to graph. In this instance, I needed to see in fairly real-time, the number of http processes as well as the size of these processes.
It could be applied to a multitude of scenarios.
==Getting Started==
1.Prepare the collection of the relevant parameters that you want to monitor ( in this case, http stats )
create a shell script:
#/usr/bin
while true
do
LOG=outlog.txt
OUTPUT=$(ps -ylC httpd | awk '{x += $8;y += 1} END {print "Apache Memory Usage (MB): "x/1024; print ":Average Proccess Size (MB): "x/((y-1)*1024)}' && echo -n ':Apache Processes: ' && ps -C httpd --no-headers | wc -l )
#DAY=$(date +"%F %H:%M:%S")
DAY=$(date +"%F"+"%T")
now=$(date +'%Y-%m-%d %H:%M:%S')
##echo $OUTPUT \'$DAY\'
echo $OUTPUT \'$DAY\' | awk '{print "INSERT INTO performance (mem_used, process_size, processors_used,period) VALUES ( "$5", "$10", "$13", "$14" );"}' | mysql --user=username --password=password database_name
sleep 120
done