After working on this issue for a bit. The active plan is to fail over master, to the “west” dc. Perform a realm pull from the west so that it forces the failover to occur. Then have the “east” DC, then pull the realm data back. Hopefully will get both sides back in sync.. My concern with this approach is both sides are “active”, meaning the client has been writing data to both endpoints. Will this cause an issue where “west” will have data that the metadata does not have record of, and then delete the data? Thanks From: Tarrago, Eli (RIS-BCT) &lt;Eli.Tarrago(a)lexisnexisrisk.com&gt; Date: Thursday, April 20, 2023 at 3:13 PM To: Ceph Users &lt;ceph-users(a)ceph.io&gt; Subject: Radosgw multisite replication issues Good Afternoon, I am experiencing an issue where east-1 is no longer able to replicate from west-1, however, after a realm pull, west-1 is now able to replicate from east-1. In other words: West <- Can Replicate <- East West -> Cannot Replicate -> East After confirming the access and secret keys are identical on both sides, I restarted all radosgw services. Here is the current status of the cluster below. Thank you for your help, Eli Tarrago root@east01:~# radosgw-admin zone get { "id": "ddd66ab8-0417-46ee-a53b-043352a63f93", "name": "rgw-east", "domain_root": "rgw-east.rgw.meta:root", "control_pool": "rgw-east.rgw.control", "gc_pool": "rgw-east.rgw.log:gc", "lc_pool": "rgw-east.rgw.log:lc", "log_pool": "rgw-east.rgw.log", "intent_log_pool": "rgw-east.rgw.log:intent", "usage_log_pool": "rgw-east.rgw.log:usage", "roles_pool": "rgw-east.rgw.meta:roles", "reshard_pool": "rgw-east.rgw.log:reshard", "user_keys_pool": "rgw-east.rgw.meta:users.keys", "user_email_pool": "rgw-east.rgw.meta:users.email", "user_swift_pool": "rgw-east.rgw.meta:users.swift", "user_uid_pool": "rgw-east.rgw.meta:users.uid", "otp_pool": "rgw-east.rgw.otp", "system_key": { "access_key": "PxxxxxxxxxxxxxxxxW", "secret_key": "Hxxxxxxxxxxxxxxxx6" }, "placement_pools": [ { "key": "default-placement", "val": { "index_pool": "rgw-east.rgw.buckets.index", "storage_classes": { "STANDARD": { "data_pool": "rgw-east.rgw.buckets.data" } }, "data_extra_pool": "rgw-east.rgw.buckets.non-ec", "index_type": 0 } } ], "realm_id": "98e0e391-16fb-48da-80a5-08437fd81789", "notif_pool": "rgw-east.rgw.log:notif" } root@west01:~# radosgw-admin zone get { "id": "b2a4a31c-1505-4fdc-b2e0-ea07d9463da1", "name": "rgw-west", "domain_root": "rgw-west.rgw.meta:root", "control_pool": "rgw-west.rgw.control", "gc_pool": "rgw-west.rgw.log:gc", "lc_pool": "rgw-west.rgw.log:lc", "log_pool": "rgw-west.rgw.log", "intent_log_pool": "rgw-west.rgw.log:intent", "usage_log_pool": "rgw-west.rgw.log:usage", "roles_pool": "rgw-west.rgw.meta:roles", "reshard_pool": "rgw-west.rgw.log:reshard", "user_keys_pool": "rgw-west.rgw.meta:users.keys", "user_email_pool": "rgw-west.rgw.meta:users.email", "user_swift_pool": "rgw-west.rgw.meta:users.swift", "user_uid_pool": "rgw-west.rgw.meta:users.uid", "otp_pool": "rgw-west.rgw.otp", "system_key": { "access_key": "PxxxxxxxxxxxxxxW", "secret_key": "Hxxxxxxxxxxxxxx6" }, "placement_pools": [ { "key": "default-placement", "val": { "index_pool": "rgw-west.rgw.buckets.index", "storage_classes": { "STANDARD": { "data_pool": "rgw-west.rgw.buckets.data" } }, "data_extra_pool": "rgw-west.rgw.buckets.non-ec", "index_type": 0 } } ], "realm_id": "98e0e391-16fb-48da-80a5-08437fd81789", "notif_pool": "rgw-west.rgw.log:notif" east01:~# radosgw-admin metadata sync status { "sync_status": { "info": { "status": "init", "num_shards": 0, "period": "", "realm_epoch": 0 }, "markers": [] }, "full_sync": { "total": 0, "complete": 0 } } west01:~# radosgw-admin metadata sync status { "sync_status": { "info": { "status": "sync", "num_shards": 64, "period": "44b6b308-e2d8-4835-8518-c90447e7b55c", "realm_epoch": 3 }, "markers": [ { "key": 0, "val": { "state": 1, "marker": "", "next_step_marker": "", "total_entries": 46, "pos": 0, "timestamp": "0.000000", "realm_epoch": 3 } }, #### goes on for a long time… { "key": 63, "val": { "state": 1, "marker": "", "next_step_marker": "", "total_entries": 0, "pos": 0, "timestamp": "0.000000", "realm_epoch": 3 } } ] }, "full_sync": { "total": 46, "complete": 46 } } east01:~# radosgw-admin sync status realm 98e0e391-16fb-48da-80a5-08437fd81789 (rgw-blobs) zonegroup 0e0faf4e-39f5-402e-9dbb-4a1cdc249ddd (EastWestceph) zone ddd66ab8-0417-46ee-a53b-043352a63f93 (rgw-east) metadata sync no sync (zone is master) 2023-04-20T19:03:13.388+0000 7f25fa036c80 0 ERROR: failed to fetch datalog info data sync source: b2a4a31c-1505-4fdc-b2e0-ea07d9463da1 (rgw-west) failed to retrieve sync info: (13) Permission denied west01:~# radosgw-admin sync status realm 98e0e391-16fb-48da-80a5-08437fd81789 (rgw-blobs) zonegroup 0e0faf4e-39f5-402e-9dbb-4a1cdc249ddd (EastWestceph) zone b2a4a31c-1505-4fdc-b2e0-ea07d9463da1 (rgw-west) metadata sync syncing full sync: 0/64 shards incremental sync: 64/64 shards metadata is caught up with master data sync source: ddd66ab8-0417-46ee-a53b-043352a63f93 (rgw-east) syncing full sync: 0/128 shards incremental sync: 128/128 shards data is behind on 16 shards behind shards: [5,56,62,65,66,70,76,86,87,94,104,107,111,113,120,126] oldest incremental change not applied: 2023-04-20T19:02:48.783283+0000 [5] east01:~# radosgw-admin zonegroup get { "id": "0e0faf4e-39f5-402e-9dbb-4a1cdc249ddd", "name": "EastWestceph", "api_name": "EastWestceph", "is_master": "true", "endpoints": [ http://east01.example.net:8080, http://east02.example.net:8080, http://east03.example.net:8080, http://west01.example.net:8080, http://west02.example.net:8080, http://west03.example.net:8080 ], "hostnames": [ "eastvip.example.net", "westvip.example.net" ], "hostnames_s3website": [], "master_zone": "ddd66ab8-0417-46ee-a53b-043352a63f93", "zones": [ { "id": "b2a4a31c-1505-4fdc-b2e0-ea07d9463da1", "name": "rgw-west", "endpoints": [ http://west01.example.net:8080, http://west02.example.net:8080, http://west03.example.net:8080 ], "log_meta": "false", "log_data": "true", "bucket_index_max_shards": 0, "read_only": "false", "tier_type": "", "sync_from_all": "true", "sync_from": [], "redirect_zone": "" }, { "id": "ddd66ab8-0417-46ee-a53b-043352a63f93", "name": "rgw-east", "endpoints": [ http://east01.example.net:8080, http://east02.example.net:8080, http://east03.example.net:8080 ], "log_meta": "false", "log_data": "true", "bucket_index_max_shards": 0, "read_only": "false", "tier_type": "", "sync_from_all": "true", "sync_from": [], "redirect_zone": "" } ], "placement_targets": [ { "name": "default-placement", "tags": [], "storage_classes": [ "STANDARD" ] } ], "default_placement": "default-placement", "realm_id": "98e0e391-16fb-48da-80a5-08437fd81789", "sync_policy": { "groups": [] } } ________________________________ The information contained in this e-mail message is intended only for the personal and confidential use of the recipient(s) named above. 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