From c0ccb46e2f231b2ef13f628a90c323ade359579a Mon Sep 17 00:00:00 2001 From: Josh Durgin Date: Sat, 1 Feb 2020 15:28:33 -0500 Subject: [PATCH] PendingReleaseNotes: mention target_size_ratio change Signed-off-by: Josh Durgin (cherry picked from commit 9118065c4c3803f8a2c26c28c69ffc9f14ff260a) --- PendingReleaseNotes | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/PendingReleaseNotes b/PendingReleaseNotes index 812a9b2a0b04b..0376f3caf05d0 100644 --- a/PendingReleaseNotes +++ b/PendingReleaseNotes @@ -4,3 +4,12 @@ * Bucket notifications now support Kafka endpoints. This requires librdkafka of version 0.9.2 and up. Note that Ubuntu 16.04.6 LTS (Xenial Xerus) has an older version of librdkafka, and would require an update to the library. + +* The pool parameter ``target_size_ratio``, used by the pg autoscaler, + has changed meaning. It is now normalized across pools, rather than + specifying an absolute ratio. For details, see :ref:`pg-autoscaler`. + If you have set target size ratios on any pools, you may want to set + these pools to autoscale ``warn`` mode to avoid data movement during + the upgrade:: + + ceph osd pool set pg_autoscale_mode warn -- 2.39.5