To get detailed information about a Linux PID you can use the strace command. If strace is not installed it can be installed via yum using the command below.
Strace Install:
Below is a sample output from using the strace command on a Litespeed web server process.
Sometimes a process will get stuck in a loop on a server either because it has run out of memory, buggy code has been pushed live, or any other number of reasons. One of the first steps in this situation before killing (kill -9) the process should be to try to figure out why the process is looping. This can be done with strace. Use the below command to gain more information about the PID (Process ID).
To output the information to your shell.