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

	return obj, nil
}

// transition object to target specified by the transition ARN. When an object is transitioned to another
// storage specified by the transition ARN, the metadata is left behind on source cluster and original content
// is moved to the transition tier. Note that in the case of encrypted objects, entire encrypted stream is moved
// to the transition tier without decrypting or re-encrypting.

        assertEquals(State.OPEN, circuitBreaker.getState(), "Circuit should be OPEN");

        // Wait for reset timeout
        Thread.sleep(1100);

        // Execute successful operation - should transition to HALF_OPEN then potentially CLOSED
        String result = circuitBreaker.executeWithCircuitBreaker(() -> "success");
        assertEquals("success", result, "Operation should succeed");

}

// TransitionObject - transition object content to target tier.
func (er erasureObjects) TransitionObject(ctx context.Context, bucket, object string, opts ObjectOptions) error {
	tgtClient, err := globalTierConfigMgr.getDriver(ctx, opts.Transition.Tier)
	if err != nil {
		return err
	}

	if !opts.NoLock {
		// Acquire write lock before starting to transition the object.
		lk := er.NewNSLock(bucket, object)

        }
    }

    /**
     * Test state transitions (typical workflow)
     */
    public void test_stateTransitions() {
        // Simulate typical crawler lifecycle
        CrawlerStatus currentStatus = CrawlerStatus.INITIALIZING;
        assertEquals(CrawlerStatus.INITIALIZING, currentStatus);

        // Transition to RUNNING
        currentStatus = CrawlerStatus.RUNNING;

    }

    @Test
    @DisplayName("Test transition to HALF_OPEN after timeout")
    void testTransitionToHalfOpen() throws Exception {
        // Open the circuit
        circuitBreaker.tripBreaker();
        assertEquals(SimpleCircuitBreaker.State.OPEN, circuitBreaker.getState());

        // Wait for timeout
        Thread.sleep(150);

        // Next call should transition to HALF_OPEN

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

		fi.ModTime = basefi.ModTime.Add(time.Duration(i) * time.Second)
		if err := xl.AddVersion(fi); err != nil {
			t.Fatalf("%d: Failed to add version %v", i+1, err)
		}

		if i > 3 {
			// Simulate transition of a version
			transfi := fi
			transfi.TransitionStatus = lifecycle.TransitionComplete
			transfi.TransitionTier = "MINIO-TIER"
			transfi.TransitionedObjName = mustGetUUID()
			xl.DeleteVersion(transfi)

# /- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# five framework-embedded messages (don't change key names)
# - - - - - - - - - -/
errors.login.failure = Login failed.
errors.app.illegal.transition = Illegal transition. Please try again.
errors.app.db.already.deleted = It may have been deleted by another process. Please try again.
errors.app.db.already.updated = It may have been updated by another process. Please try again.