Finding Zombie Processes in Linux
Introduction
In Linux, zombie processes are a type of process that has terminated but its parent process is still running. These processes are often referred to as "zombie" because they appear to be dead, but in reality, they are still active and consuming system resources. Finding zombie processes can be a useful debugging tool, as it can help you identify and resolve issues with your system.
What are Zombie Processes?
A zombie process is a process that has terminated, but its parent process is still running. This can happen for a variety of reasons, including:
- The process was terminated due to an error or crash
- The process was terminated due to a system call or signal
- The process was terminated due to a resource leak or memory exhaustion
How to Find Zombie Processes in Linux
To find zombie processes in Linux, you can use the ps command with the -o option to specify the columns you want to view. Here is an example:
ps -o pid,ppid,stat,cmd,etimes,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid,gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,comm,uid, gid,ppid,