From 33c211bf9868156e41d7196cbac5dc6bff418248 Mon Sep 17 00:00:00 2001 From: Greg Farnum Date: Mon, 17 Apr 2017 14:32:38 -0700 Subject: [PATCH] PendingReleaseNotes: discuss snap trim improvements Signed-off-by: Greg Farnum --- PendingReleaseNotes | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/PendingReleaseNotes b/PendingReleaseNotes index 01367280b48..33f960e9be9 100644 --- a/PendingReleaseNotes +++ b/PendingReleaseNotes @@ -21,3 +21,10 @@ before:: ceph osd rm osd.123 + +* This release greatly improves control and throttling of the snap trimmer. It + introduces the "osd max trimming pgs" option (defaulting to 2), which limits + how many PGs on an OSD can be trimming snapshots at a time. And it restores + the safe use of the "osd snap trim sleep" option, wihch defaults to 0 but + otherwise adds the given number of seconds in delay between every dispatch + of trim operations to the underlying system. -- 2.47.3