Hi, I am new on rgw and try deploying a mutisite cluster in order to sync data from one cluster to another. My source zone is the default zone in the default zonegroup, structure as belows: realm: big-realm | zonegroup: default / \ master zone: default secondary zone: backup *STEP*: on source cluster: 1. radosgw-admin realm create --rgw-realm=big-realm --default 2. radosgw-admin zonegroup modify --rgw-realm big-realm --rgw-zonegroup default --master --endpoints "http://172.24.29.26:7480" 3. radosgw-admin zone modify --rgw-zonegroup default --rgw-zone default --master --endpoints "http://172.24.29.26:7480" 4. radosgw-admin user create --uid=sync-user --display-name="Synchronization User" --access-key=redhat --secret=redhat --system 5. radosgw-admin zone modify --rgw-zone=default --access-key=redhat --secret=redhat 6. radosgw-admin period update --commit on destination cluster: 1. radosgw-admin realm pull --url="http://172.24.29.26:7480 <http://172.24.29.26/>" --access-key=redhat --secret=redhat --rgw-realm=big-realm 2. radosgw-admin realm default --rgw-realm=big-realm 3. radosgw-admin period pull --url="http://172.24.29.26:7480" --access-key=redhat --secret=redhat 4. radosgw-admin zonegroup default --rgw-zonegroup=default 5. radosgw-admin zone create --rgw-zonegroup=default --rgw-zone=backup --endpoints="http://172.24.29.29:7480" --access-key=redhat --secret=redhat --default 6. radosgw-admin period update --commit commit period on secondary zone get error: 2020-04-02 14:36:04.707 7fd8ee9376c0 1 Cannot find zone id=8c75360a-c0cf-4772-b85e-ff74726396c2 (name=backup), switching to local zonegroup configuration Sending period to new master zone 5fba7cae-47f1-4c8e-9a34-1b499c9c27f8 request failed: (2202) Unknown error 2202 failed to commit period: (2202) Unknown error 2202 radosgw-admin sync status: 2020-04-02 14:37:18.330 7f27c60676c0 1 Cannot find zone id=8c75360a-c0cf-4772-b85e-ff74726396c2 (name=backup), switching to local zonegroup configuration realm fec73799-36be-4418-abb2-9804cc83d83d (big-realm) zonegroup fc61ac2f-dc1d-421b-90af-ffe9113b9935 (default) zone 8c75360a-c0cf-4772-b85e-ff74726396c2 (backup) metadata sync failed to read sync status: (2) No such file or directory data sync source: 5fba7cae-47f1-4c8e-9a34-1b499c9c27f8 (default) syncing full sync: 0/128 shards incremental sync: 128/128 shards data is caught up with source My source cluster's version is 13.2.8, and destination cluster's is 14.2.8. I tried sync data from cluster of both 13.2.8 version and got the same error. Is there any step I was wrong or the default zone cannot be synced? Thanks