Ceph

Hello, i have a radosgw multisite configuration and when i enabled sync debug option with:
debug rgw sync = 5
I have this message regularly in radosgw log (master zone and secondary log).
...
2023-03-16T17:34:15.684+0100 7f30317fa700 5 RGW-SYNC:data:sync:shard¹⁰⁷: failed to take lease
2023-03-16T17:34:15.684+0100 7f30317fa700 5 RGW-SYNC:data:sync:shard⁷⁹: failed to take lease
2023-03-16T17:34:15.684+0100 7f30317fa700 5 RGW-SYNC:data:sync:shard⁹⁷: failed to take lease
2023-03-16T17:34:15.684+0100 7f30317fa700 5 RGW-SYNC:data:sync:shard¹¹²: failed to take lease
2023-03-16T17:34:15.688+0100 7f30317fa700 5 RGW-SYNC:data:sync:shard¹¹⁴: failed to take lease
2023-03-16T17:34:15.700+0100 7f30317fa700 5 RGW-SYNC:data:sync:shard³⁵: failed to take lease
2023-03-16T17:34:15.700+0100 7f30317fa700 5 RGW-SYNC:data:sync:shard³³: failed to take lease
..
My sync works but i would like to understand this message ? If it's an error ? if an intervention is needed ?
radosgw-admin bucket sync status --bucket=mybucket
realm cab6fdc5-10c6-49ca-8edc-532beb718b9a (myrealm)
zonegroup 8aa5a35b-9841-4616-a0f6-1d035a55a45a (myzonegroup)
zone 62897ac7-66b3-4fce-8693-3e9a998b6b2d (myzone)
bucket :mybucket[62897ac7-66b3-4fce-8693-3e9a998b6b2d.390493604.2])

source zone 0b5b95c2-9701-482f-9d85-09c671a73e28 (myzone.secondary)
  source bucket mongo-backup:62897ac7-66b3-4fce-8693-3e9a998b6b2d.390493604.2
                full sync: 0/11 shards
                incremental sync: 11/11 shards
                bucket is caught up with source

radosgw-admin sync status
realm cab6fdc5-10c6-49ca-8edc-532beb718b9a (myrealm)
zonegroup 8aa5a35b-9841-4616-a0f6-1d035a55a45a (myzonegroup)
zone 62897ac7-66b3-4fce-8693-3e9a998b6b2d (myzone)
metadata sync no sync (zone is master)
data sync source: 0b5b95c2-9701-482f-9d85-09c671a73e28 (myzone.secondary)
syncing
full sync: 0/128 shards
incremental sync: 128/128 shards
data is caught up with source

pacific 16.2.9

regards
Guillaume