Mounting cephfs on OSD hosts still a problem

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Hi,


we are planning a new cluster as backend for our new bareos backup setup. It currently supports ceph either via S3 or via filesystem (the rados plugin is deprecated in the current release).


Since I would like to avoid the extra S3 hop (storage daemon <-> ceph rgw) our POC will use cephfs. To further isolate the cluster from all other system, I would also like to run the bareos storage daemon colocated to the CEPH OSDs.


This will require mounting the cephfs instance on the hosts. In the past this was considered a problem since deadlocks may occur. Is this still the case? Or is mounting cephfs on the OSD hosts (kernel implementation) considered safe now?


Best regards and happy holidays,

Burkhard Linke

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