From: Venky Shankar <vshankar@redhat.com>
Date: Thu, 17 Aug 2023 04:40:37 +0000 (+0530)
Subject: PendingReleaseNotes: add a note for `mds_session_metadata_threshold` mds config
X-Git-Tag: v16.2.15~109^2~2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=f95a20a5c729b2f7cdc142ceae3475749f5e5413;p=ceph.git

PendingReleaseNotes: add a note for `mds_session_metadata_threshold` mds config

Signed-off-by: Venky Shankar <vshankar@redhat.com>
(cherry picked from commit ac3ab1a203ad65c7db07bc2c02acb5620800fb25)
---

diff --git a/PendingReleaseNotes b/PendingReleaseNotes
index 5e2c22e1b51b..120980c862c9 100644
--- a/PendingReleaseNotes
+++ b/PendingReleaseNotes
@@ -40,6 +40,11 @@
   "mgr/prometheus/server_port". This matches the output of the non pretty-print
   formatted version of the command.
 
+* 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.
+
 >= 16.2.14
 ----------