Mongod OOM Killer error

Original Question or Issue:

Mongod crashing with OOM Killer error:

Environment:

Steps to Reproduce:

Error or Log Message:

Defect or Enhancement Number:

Cause:

Resolution or Workaround:

Change the system priority for which service to kill when memory is usage is high:

systemctl edit mongod
[Service]
OOMScoreAdjust=-999

systemctl restart mongod

The value can range from anywhere between -1000 and 1000, the lower the number, the less likely the OOM killer will stop this service.

Notes: