PendingReleaseNotes: document online and offline trimming of PG Log's dups

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>
(cherry picked from commit dbfb50453c2f7fe5b0a06d846dd38693cceb63fe)

Conflicts:
    PendingReleaseNotes
- Moved the note under the new ">=16.2.11" section

diff --git a/PendingReleaseNotes b/PendingReleaseNotes
index 3ee6ade8cfdd14df211e61d0ef9817560017d8e7..77e35f582e90a144c874dc11a4c060362a2d9c58 100644 (file)
--- a/PendingReleaseNotes
+++ b/PendingReleaseNotes
@@ -38,6 +38,14 @@
 * Cephfs: The 'AT_NO_ATTR_SYNC' macro is deprecated, please use the standard
   'AT_STATX_DONT_SYNC' macro. The 'AT_NO_ATTR_SYNC' macro will be removed in
   the future.
+* Trimming of PGLog dups is now controlled by the size instead of the version.
+  This fixes the PGLog inflation issue that was happening when the on-line
+  (in OSD) trimming got jammed after a PG split operation. Also, a new off-line
+  mechanism has been added: `ceph-objectstore-tool` got `trim-pg-log-dups` op
+  that targets situations where OSD is unable to boot due to those inflated dups.
+  If that is the case, in OSD logs the "You can be hit by THE DUPS BUG" warning
+  will be visible.
+  Relevant tracker: https://tracker.ceph.com/issues/53729
 
 >=16.2.8
 --------