From 6415044df35cc7c99a1d09fbe555cfd65cd0c1d5 Mon Sep 17 00:00:00 2001 From: Satoru Takeuchi Date: Thu, 27 May 2021 02:09:39 +0000 Subject: [PATCH] rgw: add the description of blocking io during index resharding It's nice to describe that write I/Os are blocked during resharding. Signed-off-by: Satoru Takeuchi --- doc/radosgw/dynamicresharding.rst | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/doc/radosgw/dynamicresharding.rst b/doc/radosgw/dynamicresharding.rst index a7698e7bbc932..19a2a2b468284 100644 --- a/doc/radosgw/dynamicresharding.rst +++ b/doc/radosgw/dynamicresharding.rst @@ -18,7 +18,8 @@ exceeded the system can suffer from performance issues. The dynamic resharding feature detects this situation and automatically increases the number of shards used by the bucket index, resulting in a reduction of the number of entries in each bucket index shard. This -process is transparent to the user. +process is transparent to the user. Write I/Os to the target bucket +are blocked and read I/Os are not during resharding process. By default dynamic bucket index resharding can only increase the number of bucket index shards to 1999, although this upper-bound is a -- 2.39.5