Dan:

Example:

2020-08-31 10:41:10.868622 7fc4d28b5dc0  1 execute INFO: reshard of bucket "cvmfs-sft-test0" from "cvmfs-sf
t-test0:61c59385-085d-4caa-9070-63a3868dccb6.205147250.6" to "cvmfs-sft-test0:61c59385-085d-4caa-9070-63a3868dccb6.271824312.1" completed successfully

real    10m13.655s
user    2m59.270s
sys     0m37.773s

 # rados ls -p default.rgw.buckets.index | grep 61c59385-085d-4caa-9070-63a3868dccb6.271824312.1
.dir.61c59385-085d-4caa-9070-63a3868dccb6.271824312.1.213
.dir.61c59385-085d-4caa-9070-63a3868dccb6.271824312.1.192
.dir.61c59385-085d-4caa-9070-63a3868dccb6.271824312.1.151
 # rados ls -p default.rgw.buckets.index | grep 61c59385-085d-4caa-9070-63a3868dccb6.205147250.6
.dir.61c59385-085d-4caa-9070-63a3868dccb6.205147250.6.4
.dir.61c59385-085d-4caa-9070-63a3868dccb6.205147250.6.3
.dir.61c59385-085d-4caa-9070-63a3868dccb6.205147250.6.26
.dir.61c59385-085d-4caa-9070-63a3868dccb6.205147250.6.25
.dir.61c59385-085d-4caa-9070-63a3868dccb6.205147250.6.30

In some cases like ^^ we need to remove the old bucket index objects still. procedure TBD.

[11:04][root@cephgabe0 (production:ceph/gabe/mon*2:leader) ~]# radosgw-admin reshard stale-instances list
[]
 

In any case, we still need to reshard the following buckets: 

                "bucket": "cvmfs-na62",
                "bucket": "gitlabartifacts",
                "bucket": "gitlabregistry",
                "bucket": "cvmfs-lhcb",
                "bucket": "cvmfs-cms-ci",
                "bucket": "cvmfs-atlas",
                "bucket": "cvmfs-sft",
                "bucket": "cvmfs-lhcbdev",
 

Julien