Capture the data in Linux .While doing load test.

Shell Programming and Scripting
1

Hi All,

I am trying to capture the data in linux .While doing load test.
is there's any sample script please help me.

Linux test4 2.6.18-308.8.1.el5 #1 SMP Fri May 4 16:43:02 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux

Thanks,

2

Not sure if this is what you're looking for - you could redirect the output to a file, if you want it for posterior use.

$ command arguments > file

Please provide more details.. inputs, data samples, desired output..

3

Hi Balajesuri,

When we are doing the load test. script has to capture the data and save it some xxx location. After the load test i have to send other developer .

if the load is high it has to send alert to mail. is there's any sample script available.

i am a new bie to scripting.

Thanks,

4

Basic one to check load:

#!/bin/bash

LOAD_VALUE=`cat /proc/loadavg | sed 's/\./ /' | awk '{print $1}'`

if [ $LOAD_VALUE -gt "6" ]; then
       mail -s �PANIC� someone@somedomain.com
fi

Replace the value "6" for one that apply to you.

5

Thank you so much braniak.

I have a small doubt how to capture the data while performing the load test. I have to review the captured data later

Regards,

6

As I said, this is a simple way to do it, and it's not sofisticated at all.. :stuck_out_tongue:

In your main script, that will execute some sort of commands, put the "touch" command at the beginning, execute the load.sh in background and put the "rm -rf" at the end:

#!/bin/bash

touch /tmp/load.pid # Create the "control" file.

./load.sh & # Execute the load.sh in background.

comandos(){
ls
sleep 5
ls -lhtr
sleep 5
}

comandos

sleep 1

comandos

rm -rf /tmp/load.pid # Remove the "control" file.

exit 0

Then, create the load.sh like this:

#!/bin/bash

while [ -e /tmp/load.pid ]
        do
        LOAD_VALUE=`cat /proc/loadavg | sed 's/\./ /' | awk '{print $1}'`

                if [ $LOAD_VALUE -gt "6" ]; then
                        echo "`date` - $LOAD_VALUE" >> load.log
                        mail -s "PANIC" someone@somedomain.com
                        exit 1
                else
                        echo "`date` - $LOAD_VALUE" >> load.log
                fi
        sleep 5
        done
exit 0