Why pulpcore-worker processes are killed by OOM (out of memory) on Ansible Private Automation Hub?

Solution Verified - Updated -

Issue

  • pulpcore-worker processes are killed by OOM (out of memory).
    See /var/log/messages:

    Apr 17 18:17:56 pah.example.com pulpcore-worker[336381]: pulp [None]: 
pulpcore.tasking.pulpcore_worker:WARNING: Task process for 018eeb49-c9fb-71d9-a4c4-d4fbcc2eec52 exited with non zero exitcode -9.
Apr 17 18:17:56 pah.example.com pulpcore-worker[336381]: pulp [None]: 
pulpcore.tasking.pulpcore_worker:INFO: Cleaning up task 018eeb49-c9fb-71d9-a4c4-d4fbcc2eec52 and marking as failed. Reason: Killed by signal 9.

Environment

  • Ansible Private Automation Hub all version

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