| `minio_cluster_replication_last_hour_failed_bytes`         | (_Site Replication Only_) Total number of bytes failed at least once to replicate in the last full hour. |
| `minio_cluster_replication_last_hour_failed_count`         | (_Site Replication Only_) Total number of objects which failed replication in the last full hour.        |

| `minio_cluster_iam_plugin_authn_service_failed_requests_minute` | `counter` | When plugin authentication is configured, returns failed requests count in the last full minute                          |        |
| `minio_cluster_iam_plugin_authn_service_last_fail_seconds`      | `counter` | When plugin authentication is configured, returns time (in seconds) since the last failed request to the service         |        |

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