doc/releases/pacific.rst: add core updates for 16.2.7

16.2.7 fixes https://tracker.ceph.com/issues/53062, so remove the
"big scary warning" from the top of the pacific release page. We continue
to warn about this bug under the 16.2.6 section and in
https://docs.ceph.com/en/latest/releases/pacific/#upgrading-from-octopus-or-nautilus.

Signed-off-by: Neha Ojha <nojha@redhat.com>

diff --git a/doc/releases/pacific.rst b/doc/releases/pacific.rst
index 9c7dad7b2b2289969767356fd2e1c97d5d8938ca..ca253bdcb0c04057cbb4d8072e3b3a32c5d174c0 100644 (file)
--- a/doc/releases/pacific.rst
+++ b/doc/releases/pacific.rst
@@ -2,33 +2,6 @@
 Pacific
 =======
 
-Pacific is the 16th stable release of Ceph.  It is named after the
-giant pacific octopus (Enteroctopus dofleini).
-
-.. DANGER:: DATE: 01 NOV 2021. 
-
-   DO NOT UPGRADE TO CEPH PACIFIC FROM AN OLDER VERSION.  
-
-   A recently-discovered bug (https://tracker.ceph.com/issues/53062) can cause
-   data corruption. This bug occurs during OMAP format conversion for
-   clusters that are updated to Pacific. New clusters are not affected by this
-   bug.
-
-   The trigger for this bug is BlueStore's repair/quick-fix functionality. This
-   bug can be triggered in two known ways: 
-
-    (1) manually via the ceph-bluestore-tool, or 
-    (2) automatically, by OSD if ``bluestore_fsck_quick_fix_on_mount`` is set 
-        to true.
-
-   The fix for this bug is expected to be available in Ceph v16.2.7.
-
-   DO NOT set ``bluestore_quick_fix_on_mount`` to true. If it is currently
-   set to true in your configuration, immediately set it to false.
-
-   DO NOT run ``ceph-bluestore-tool``'s repair/quick-fix commands.
-
-
 v16.2.7 Pacific   
 ===============
 
@@ -42,6 +15,7 @@ Notable Changes
   bluestore-quick-fix-on-mount parameter is set to true or ceph-bluestore-tool's
   quick-fix/repair commands are invoked.
   Relevant tracker: https://tracker.ceph.com/issues/53062
+  bluestore-quick-fix-on-mount continues to be set to false, by default.
 
 * MGR: The pg_autoscaler will use the 'scale-up' profile as the default profile.
   16.2.6 changed the default profile to 'scale-down' but we ran into issues
@@ -66,6 +40,16 @@ Notable Changes
   through a set of steps to help them configure their Ceph cluster: expanding
   the cluster by adding more hosts, detecting and defining their storage
   devices, and finally deploying and configuring the different Ceph services.
+
+* OSD: When using mclock_scheduler for QoS, there is no longer a need to run any
+  manual benchmark. The OSD now automatically sets an appropriate value for
+  `osd_mclock_max_capacity_iops` by running a simple benchmark during
+  initialization.
+
+* MGR: The global recovery event in the progress module has been optimized and
+  a `sleep_interval` of 5 seconds has been added between stats collection,
+  to reduce the impact of the progress module on the MGR, especially in large
+  clusters.
   
 Changelog
 ---------