strace php-fpm process

Hi,

Today I will share how fast and easy we can track what happens behind a php-fpm process thanks to strace!

We add the following function to our user’s .bashrc file (recommended to be directly on root) or will need to be executed with sudo:

function straceall {
strace -t -f -o strace.txt $(pidof "${1}" | sed 's/\([0-9]*\)/-p \1/g')
}

We load it in new by source .bashrc or go out and log on to our server and start tracking the process:

straceall php-fpm7.0

If we want to follow the php7.1-fpm process we write:

straceall php-fpm7.1

for php5-fpm :

straceall php5-fpm

This is a stracy process that writes in a strace.txt file in real time.

Thats it!