I have a strange problem with ceph fs and extended attributes. I have two 
Centos machines where I mount cephfs in exactly the same way (I manually 
executed the exact same mount command on both machines). On one of the 
machines, getfattr returns this:

[root@ceph-01 ~]# getfattr -d -m 'ceph.*' /mnt/cephfs/hpc/home
getfattr: Removing leading '/' from absolute path names
# file: mnt/cephfs/hpc/home
ceph.dir.entries="49"
ceph.dir.files="1"
ceph.dir.rbytes="77816237666910"
ceph.dir.rctime="1575978038.0976848840"
ceph.dir.rentries="6673312"
ceph.dir.rfiles="6271408"
ceph.dir.rsubdirs="401904"
ceph.dir.subdirs="48"

and on the other I get nothing:

[root@gnosis ~]# getfattr -d -m 'ceph.*' /mnt/cephfs/hpc/home

No error message, just nothing.

The only difference is, that ceph-01 was kickstarted with Centos7.6 while 
gnosis was kickstarted with Centos7.7. Otherwise, both machines are deployed 
identically. getfattr is the same version on both. Kernel versions are 
ceph-01:5.0.2-1.el7.elrepo.x86_64 and gnosis:5.4.2-1.el7.elrepo.x86_64.

Does anyone have a pointer what to look for?

Thanks!

=================
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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