Ceph: HEALTH_WARN "MDS cache is too large (xGB/yGB); 0 inodes in use by clients, 0 stray files" for the standby-replay MDS
Issue
HEALTH_WARN "MDS cache is too large (xGB/yGB); 0 inodes in use by clients, 0 stray files" for the standby-replay MDS.
MDS reports oversized cache while checking ceph health detail:
HEALTH_WARN 1 MDSs report oversized cache
[WRN] MDS_CACHE_OVERSIZED: 1 MDSs report oversized cache mds.ocs-storagecluster-cephfilesystem-b(mds.0): MDS cache is too large (6GB/4GB); 0 inodes in use by clients, 0 stray files
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) 4.x
Red Hat Ceph Storage (RHCS) 5.x
Red Hat Ceph Storage (RHCS) 6.x
Red Hat Ceph Storage (RHCS) 7.x
Ceph File System (CephFS)
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