ODF: Ceph OSD Pods causing OOM inside its Pod or Ceph OSD Pod using excessive memory.

Solution Verified - Updated -

Issue

Ceph OSD Pods causing OOM inside its Pod or Ceph OSD Pod using excessive memory.

Complaints regarding memory usage for the OSD process running inside a Rook-Ceph-OSD Pod:

  • All Ceph OSD Pods using excessive Memory
  • All Ceph OSD Pods using more than 4 GiB of Memory
  • OOM Killer inside the Ceph OSD Pod killing the OSD process.

Environment

Red Hat OpenShift Container Platform (OCP) 4.x
Red Hat OpenShift Container Storage (OCS) 4.x
Red Hat OpenShift Data Foundation (ODF) 4.x
Red Hat Ceph Storage (RHCS) 5.x
Red Hat Ceph Storage (RHCS) 6.x
Red Hat Ceph Storage (RHCS) 7.x
Ceph Object Storage Daemon (OSD)

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