From: Venky Shankar Date: Tue, 26 Sep 2023 12:22:03 +0000 (-0400) Subject: PendingReleaseNotes: add note about new mdlog trimming configurations X-Git-Tag: v19.3.0~120^2 X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=e579ac55b58a724de147bd202150c4d2f97321af;p=ceph.git PendingReleaseNotes: add note about new mdlog trimming configurations Signed-off-by: Venky Shankar --- diff --git a/PendingReleaseNotes b/PendingReleaseNotes index b374a1743f87..dfc6294b36a2 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