The command "cephfs-top" not showing any information.
Issue
As covered in the Ceph File System Guide, the command cephfs-top provides a 'top-like' utility to display metrics for CephFS in real time.
This command does not work if the number of CephFS clients exceeds even just a few clients. Here is an example where no data is shown for a system with 202 Ceph FS Clients:
cephfs-top - Wed Mar 23 10:22:06 2022
Client(s): 202 - 1 FUSE, 201 kclient, 0 libcephfs
client_id mount_root chit(%) rlat(s) wlat(s) mlat(s) dlease(%) ofiles oicaps oinodes mount_point@host/addr
Environment
- Red Hat Ceph Storage (RHCS) 4.x
- Red Hat Ceph Storage (RHCS) 5.0.x
- Red Hat Ceph Storage (RHCS) 5.1.x
- Red Hat Ceph Storage (RHCS) 5.2.x
- Red Hat Ceph Storage (RHCS) 5.3.0
- Red Hat Openshift Data Foundation (ODF) 4.9.x
- Red Hat Openshift Data Foundation (ODF) 4.10.x
- Red Hat Openshift Data Foundation (ODF) 4.11.x
- Red Hat Openshift Data Foundation (ODF) 4.12.x
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