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Clear a Zombie Process Leak

hard 40 XP ~8 minHands-on lab Pro

Monitoring shows a growing number of <defunct> processes on this server. If it keeps going, the machine will run out of process slots.

Task

  • No zombie (defunct) processes are left on the system.
  • The process that is creating them has a bug that cannot be fixed today: it must be stopped.
  • The API process courier-api must keep running (same PID).

About this machine

Ubuntu 24.04 with no internet access. You are student with passwordless sudo. The grader checks the final state of the machine, not the commands you typed. Values like names and ports are generated for you.

processeszombiespssignalstroubleshooting
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