import ceph 16.2.6

[ceph.git] / ceph / PendingReleaseNotes

diff --git a/ceph/PendingReleaseNotes b/ceph/PendingReleaseNotes
index 88c0137c00d352484af23d6a489857258f6bc25c..f5ac346a449fc874803320dab424b6da41277866 100644 (file)
--- a/ceph/PendingReleaseNotes
+++ b/ceph/PendingReleaseNotes
@@ -1,5 +1,13 @@
 >=17.0.0
 
+* `ceph-mgr-modules-core` debian package does not recommend `ceph-mgr-rook`
+  anymore. As the latter depends on `python3-numpy` which cannot be imported in
+  different Python sub-interpreters multi-times if the version of
+  `python3-numpy` is older than 1.19. Since `apt-get` installs the `Recommends`
+  packages by default, `ceph-mgr-rook` was always installed along with
+  `ceph-mgr` debian package as an indirect dependency. If your workflow depends
+  on this behavior, you might want to install `ceph-mgr-rook` separately.
+
 * A new library is available, libcephsqlite. It provides a SQLite Virtual File
   System (VFS) on top of RADOS. The database and journals are striped over
   RADOS across multiple objects for virtually unlimited scaling and throughput
@@ -9,6 +17,28 @@
   that were storing state in RADOS omap, especially without striping which
   limits scalability.
 
+* MDS upgrades no longer require stopping all standby MDS daemons before
+  upgrading the sole active MDS for a file system.
+
+* RGW: It is possible to specify ssl options and ciphers for beast frontend now.
+  The default ssl options setting is "no_sslv2:no_sslv3:no_tlsv1:no_tlsv1_1".
+  If you want to return back the old behavior add 'ssl_options=' (empty) to
+  ``rgw frontends`` configuration.
+
+* fs: A file system can be created with a specific ID ("fscid"). This is useful
+  in certain recovery scenarios, e.g., monitor database lost and rebuilt, and
+  the restored file system is expected to have the same ID as before.
+
+>=16.2.6
+--------
+
+* MGR: The pg_autoscaler has a new default 'scale-down' profile which provides more
+  performance from the start for new pools (for newly created clusters).
+  Existing clusters will retain the old behavior, now called the 'scale-up' profile.
+  For more details, see:
+
+  https://docs.ceph.com/en/latest/rados/operations/placement-groups/
+
 >=16.0.0
 --------
 
@@ -42,12 +72,6 @@
   deprecated and will be removed in a future release.  Please use
   ``nfs cluster rm`` and ``nfs export rm`` instead.
 
-* mgr-pg_autoscaler: Autoscaler will now start out by scaling each
-  pool to have a full complements of pgs from the start and will only
-  decrease it when other pools need more pgs due to increased usage.
-  This improves out of the box performance of Ceph by allowing more PGs 
-  to be created for a given pool.
-
 * CephFS: Disabling allow_standby_replay on a file system will also stop all
   standby-replay daemons for that file system.
 
@@ -159,6 +183,8 @@
   CentOS 7.6 and later.  To enable older clients, set ``cephx_require_version``
   and ``cephx_service_require_version`` config options to 1.
 
+* rgw: The Civetweb frontend is now deprecated and will be removed in Quincy.
+
 >=15.0.0
 --------