root_access                     (boolean)   turn 'off' root credential access for all API calls including s3, admin operations (default: 'on')
sync_events                     (boolean)   set to enable synchronous bucket notifications (default: 'off')
```

or environment variables

```

| `minio_cluster_iam_since_last_sync_millis`                      | `counter` | Time (in milliseconds) since last successful IAM data sync                                                               |        |
| `minio_cluster_iam_sync_failures`                               | `counter` | Number of failed IAM data syncs since server start                                                                       |        |

| `minio_node_iam_last_sync_duration_millis` | Last successful IAM data sync duration in milliseconds.     |
| `minio_node_iam_since_last_sync_millis`    | Time (in milliseconds) since last successful IAM data sync. |
| `minio_node_iam_sync_failures`             | Number of failed IAM data syncs since server start.         |

...

### Sync/Async Replication

By default, replication is completed asynchronously. If synchronous replication is desired, set the --sync flag while adding a
remote replication target using the `mc admin bucket remote add` command. For mc releases on or after `RELEASE.2022-12-24T15-21-38Z`, the 

golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=

To ensure that changes in the LDAP directory are reflected in object storage access changes, MinIO performs an **Automatic LDAP sync**. MinIO periodically queries the LDAP service to:

- find accounts (user DNs) that have been removed; any active STS credentials or MinIO service accounts belonging to these users are purged.

ping_interval                     (duration)  client ping commands interval in s,m,h,d. Disabled by default
streaming                         (on|off)    set to 'on', to use streaming NATS server
streaming_async                   (on|off)    set to 'on', to enable asynchronous publish
streaming_max_pub_acks_in_flight  (number)    number of messages to publish without waiting for ACKs

OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

================================================================

golang.org/x/sync
https://golang.org/x/sync
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