From: Satoru Takeuchi Date: Thu, 27 May 2021 02:09:39 +0000 (+0000) Subject: rgw: add the description of blocking io during index resharding X-Git-Tag: v17.1.0~1804^2 X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=6415044df35cc7c99a1d09fbe555cfd65cd0c1d5;p=ceph-ci.git 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 --- diff --git a/doc/radosgw/dynamicresharding.rst b/doc/radosgw/dynamicresharding.rst index a7698e7bbc9..19a2a2b4682 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