[ceph-users] rgw multisite sync not syncing data, error: RGW-SYNC:data:init_data_sync_status: ERROR: failed to read remote data log shards

Hey ceph-users, I setup a multisite sync between two freshly setup Octopus clusters. In the first cluster I created a bucket with some data just to test the replication of actual data later. I then followed the instructions on https://docs.ceph.com/en/octopus/radosgw/multisite/#migrating-a-single-site… to add a second zone. Things went well and both zones are now happily reaching each other and the API endpoints are talking. Also the metadata is in sync already - both sides are happy and I can see bucket listings and users are "in sync": and on the other side ... also the newly created buckets (read: their metadata) is synced. What is apparently not working in the sync of actual data. Upon startup the radosgw on the second site shows: also when issuing # radosgw-admin data sync init --source-zone obst-rgn it throws Does anybody have any hints on where to look for what could be broken here? Thanks a bunch, Regards Christian