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PendingReleaseNotes
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PendingReleaseNotes
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>=16.0.0
--------
* The ``ceph df`` command now lists the number of pgs in each pool.
* Monitors now have config option ``mon_allow_pool_size_one``, which is disabled
by default. However, if enabled, user now have to pass the
``--yes-i-really-mean-it`` flag to ``osd pool set size 1``, if they are really
sure of configuring pool size 1.
* librbd now inherits the stripe unit and count from its parent image upon creation.
This can be overridden by specifying different stripe settings during clone creation.
* The balancer is now on by default in upmap mode. Since upmap mode requires
``require_min_compat_client`` luminous, new clusters will only support luminous
and newer clients by default. Existing clusters can enable upmap support by running
``ceph osd set-require-min-compat-client luminous``. It is still possible to turn
the balancer off using the ``ceph balancer off`` command. In earlier versions,
the balancer was included in the ``always_on_modules`` list, but needed to be
turned on explicitly using the ``ceph balancer on`` command.
* MGR: the "cloud" mode of the diskprediction module is not supported anymore
and the ``ceph-mgr-diskprediction-cloud`` manager module has been removed. This
is because the external cloud service run by ProphetStor is no longer accessible
and there is no immediate replacement for it at this time. The "local" prediction
mode will continue to be supported.
* Cephadm: There were a lot of small usability improvements and bug fixes:
* Grafana when deployed by Cephadm now binds to all network interfaces.
* ``cephadm check-host`` now prints all detected problems at once.
* Cephadm now calls ``ceph dashboard set-grafana-api-ssl-verify false``
when generating an SSL certificate for Grafana.
* The Alertmanager is now correctly pointed to the Ceph Dashboard
* ``cephadm adopt`` now supports adopting an Alertmanager
* ``ceph orch ps`` now supports filtering by service name
* ``ceph orch host ls`` now marks hosts as offline, if they are not
accessible.
* Cephadm can now deploy NFS Ganesha services. For example, to deploy NFS with
a service id of mynfs, that will use the RADOS pool nfs-ganesha and namespace
nfs-ns::
ceph orch apply nfs mynfs nfs-ganesha nfs-ns
* Cephadm: ``ceph orch ls --export`` now returns all service specifications in
yaml representation that is consumable by ``ceph orch apply``. In addition,
the commands ``orch ps`` and ``orch ls`` now support ``--format yaml`` and
``--format json-pretty``.
* CephFS: Automatic static subtree partitioning policies may now be configured
using the new distributed and random ephemeral pinning extended attributes on
directories. See the documentation for more information:
https://docs.ceph.com/docs/master/cephfs/multimds/
* Cephadm: ``ceph orch apply osd`` supports a ``--preview`` flag that prints a preview of
the OSD specification before deploying OSDs. This makes it possible to
verify that the specification is correct, before applying it.
* RGW: The ``radosgw-admin`` sub-commands dealing with orphans --
``radosgw-admin orphans find``, ``radosgw-admin orphans finish``, and
``radosgw-admin orphans list-jobs`` -- have been deprecated. They have
not been actively maintained and they store intermediate results on
the cluster, which could fill a nearly-full cluster. They have been
replaced by a tool, currently considered experimental,
``rgw-orphan-list``.
* RBD: The name of the rbd pool object that is used to store
rbd trash purge schedule is changed from "rbd_trash_trash_purge_schedule"
to "rbd_trash_purge_schedule". Users that have already started using
``rbd trash purge schedule`` functionality and have per pool or namespace
schedules configured should copy "rbd_trash_trash_purge_schedule"
object to "rbd_trash_purge_schedule" before the upgrade and remove
"rbd_trash_purge_schedule" using the following commands in every RBD
pool and namespace where a trash purge schedule was previously
configured::
rados -p <pool-name> [-N namespace] cp rbd_trash_trash_purge_schedule rbd_trash_purge_schedule
rados -p <pool-name> [-N namespace] rm rbd_trash_trash_purge_schedule
or use any other convenient way to restore the schedule after the
upgrade.
* librbd: The shared, read-only parent cache has been moved to a separate librbd
plugin. If the parent cache was previously in-use, you must also instruct
librbd to load the plugin by adding the following to your configuration::
rbd_plugins = parent_cache
* Monitors now have a config option ``mon_osd_warn_num_repaired``, 10 by default.
If any OSD has repaired more than this many I/O errors in stored data a
``OSD_TOO_MANY_REPAIRS`` health warning is generated.
* Introduce commands that manipulate required client features of a file system::
ceph fs required_client_features <fs name> add <feature>
ceph fs required_client_features <fs name> rm <feature>
ceph fs feature ls
* OSD: A new configuration option ``osd_compact_on_start`` has been added which triggers
an OSD compaction on start. Setting this option to ``true`` and restarting an OSD
will result in an offline compaction of the OSD prior to booting.
* OSD: the option named ``bdev_nvme_retry_count`` has been removed. Because
in SPDK v20.07, there is no easy access to bdev_nvme options, and this
option is hardly used, so it was removed.
* Now when noscrub and/or nodeep-scrub flags are set globally or per pool,
scheduled scrubs of the type disabled will be aborted. All user initiated
scrubs are NOT interrupted.
* Alpine build related script, documentation and test have been removed since
the most updated APKBUILD script of Ceph is already included by Alpine Linux's
aports repository.
* fs: Names of new FSs, volumes, subvolumes and subvolume groups can only
contain alphanumeric and ``-``, ``_`` and ``.`` characters. Some commands
or CephX credentials may not work with old FSs with non-conformant names.
* `blacklist` has been replaced with `blocklist` throughout. The following commands have changed:
- ``ceph osd blacklist ...`` are now ``ceph osd blocklist ...``
- ``ceph <tell|daemon> osd.<NNN> dump_blacklist`` is now ``ceph <tell|daemon> osd.<NNN> dump_blocklist``
* The following config options have changed:
- ``mon osd blacklist default expire`` is now ``mon osd blocklist default expire``
- ``mon mds blacklist interval`` is now ``mon mds blocklist interval``
- ``mon mgr blacklist interval`` is now ''mon mgr blocklist interval``
- ``rbd blacklist on break lock`` is now ``rbd blocklist on break lock``
- ``rbd blacklist expire seconds`` is now ``rbd blocklist expire seconds``
- ``mds session blacklist on timeout`` is now ``mds session blocklist on timeout``
- ``mds session blacklist on evict`` is now ``mds session blocklist on evict``
* The following librados API calls have changed:
- ``rados_blacklist_add`` is now ``rados_blocklist_add``; the former will issue a deprecation warning and be removed in a future release.
- ``rados.blacklist_add`` is now ``rados.blocklist_add`` in the C++ API.
* The JSON output for the following commands now shows ``blocklist`` instead of ``blacklist``:
- ``ceph osd dump``
- ``ceph <tell|daemon> osd.<N> dump_blocklist``