PendingReleaseNotes: add a note for mds_session_metadata_threshold …

…mds config Signed-off-by: Venky Shankar <vshankar@redhat.com>
vshankar · Aug 22, 2023 · ac3ab1a · ac3ab1a
1 parent 84df4b3
commit ac3ab1a
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/PendingReleaseNotes b/PendingReleaseNotes
@@ -8,6 +8,10 @@
   For multi-site deployments that make any use of Server-Side Encryption, we
   recommended running this command against every bucket in every zone after all
   zones have upgraded.
+* CEPHFS: MDS evicts clients which are not advancing their request tids which causes
+  a large buildup of session metadata resulting in the MDS going read-only due to
+  the RADOS operation exceeding the size threshold. `mds_session_metadata_threshold`
+  config controls the maximum size that a (encoded) session metadata can grow.
 
 >=18.0.0