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https://github.com/ceph/ceph
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48 lines
1.6 KiB
Plaintext
48 lines
1.6 KiB
Plaintext
v9.1.0
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======
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v9.0.4
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======
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Upgrading
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---------
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* Ceph daemons now run as user and group ceph by default. The ceph user has a
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static UID assigned by Fedora and Debian (also used by derivative distributions
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like RHEL/CentOS and Ubuntu). On SUSE the ceph user will currently get a
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dynamically assigned UID when the user is created.
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If your systems already have a ceph user, upgrading the package will cause
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problems. We suggest you first remove or rename the existing 'ceph' user
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before upgrading.
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When upgrading, administrators have two options:
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#. Add the following line to ``ceph.conf`` on all hosts::
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setuser match path = /var/lib/ceph/$type/$cluster-$id
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This will make the Ceph daemons run as root (i.e., not drop
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privileges and switch to user ceph) if the daemon's data
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directory is still owned by root. Newly deployed daemons will
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be created with data owned by user ceph and will run with
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reduced privileges, but upgraded daemons will continue to run as
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root.
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#. Fix the data ownership during the upgrade. This is the preferred option,
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but is more work. The process for each host would be to:
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#. Upgrade the ceph package. This creates the ceph user and group.
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#. Stop the daemon(s)
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#. Fix the ownership. E.g.,::
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chown -R ceph:ceph /var/lib/ceph/mon/ceph-foo
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chown -R ceph:ceph /var/lib/ceph/osd/ceph-123
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#. Restart the daemon(s)
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* The on-disk format for the experimental KeyValueStore OSD backend has
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changed. You will need to remove any OSDs using that backend before you
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upgrade any test clusters that use it.
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