replication_priority            (string)    set replication priority (default: 'auto')
transition_workers              (number)    set the number of transition workers (default: '100')
stale_uploads_expiry            (duration)  set to expire stale multipart uploads older than this values (default: '24h')

Lifecycle transition rules can be applied to buckets (both versioned and un-versioned) by specifying the tier name defined above as the transition storage class for the lifecycle rule.

## Implementation

--restore-request Days=3
```

### 4.1 Monitoring transition events

`s3:ObjectTransition:Complete` and `s3:ObjectTransition:Failed` events can be used to monitor transition events between the source cluster and transition tier. To watch lifecycle events, you can enable bucket notification on the source bucket with `mc event add`  and specify `--event ilm` flag.

Note that transition event notification is a MinIO extension.

## Explore Further

| `minio_node_ilm_transition_active_tasks`                     | Number of active ILM transition tasks.                                                                     |
| `minio_node_ilm_transition_pending_tasks`                    | Number of pending ILM transition tasks in the queue.                                                       |

> Without a 'Complete' status any 'Active' or 'Draining' pool(s) are not allowed to be removed once configured.

## NOTE

- Empty delete markers (such as for objects with no other successor versions) do not transition to the new pool to avoid creating empty metadata on the other pool(s). If you believe transitioning empty delete markers is required, open a GitHub issue.

## TODO

| `s3:Replication:OperationNotTracked`               |
| `s3:Replication:OperationMissedThreshold`          |
| `s3:Replication:OperationReplicatedAfterThreshold` |

| Supported ILM Transition Event Types |
| :-----                               |
| `s3:ObjectRestore:Post`              |
| `s3:ObjectRestore:Completed`         |

| Supported Global Event Types (Only supported through ListenNotification API) |