From e579ac55b58a724de147bd202150c4d2f97321af Mon Sep 17 00:00:00 2001 From: Venky Shankar Date: Tue, 26 Sep 2023 08:22:03 -0400 Subject: [PATCH] PendingReleaseNotes: add note about new mdlog trimming configurations Signed-off-by: Venky Shankar --- PendingReleaseNotes | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/PendingReleaseNotes b/PendingReleaseNotes index b374a1743f87c..dfc6294b36a2c 100644 --- a/PendingReleaseNotes +++ b/PendingReleaseNotes @@ -117,6 +117,10 @@ CephFS: Disallow delegating preallocated inode ranges to clients. Config manager module. Users may choose between two new modes: ``upmap-read``, which offers upmap and read optimization simultaneously, or ``read``, which may be used to only optimize reads. For more detailed information see https://docs.ceph.com/en/latest/rados/operations/read-balancer/#online-optimization. +* CephFS: MDS log trimming is now driven by a separate thread which tries to + trim the log every second (`mds_log_trim_upkeep_interval` config). Also, + a couple of configs govern how much time the MDS spends in trimming its + logs. These configs are `mds_log_trim_threshold` and `mds_log_trim_decay_rate`. >=18.0.0 -- 2.39.5