log.info("[{}] Manually resetting circuit breaker to CLOSED", name);
        transitionTo(State.CLOSED);
    }

    /**
     * Manually trip the circuit breaker to open state
     */
    public void trip() {
        log.info("[{}] Manually tripping circuit breaker to OPEN", name);
        transitionTo(State.OPEN);
    }

    /**
     * Get current failure threshold (may be dynamically adjusted)

	Disabled = "Disabled"
	// TransitionStatus status of transition
	TransitionStatus = "transition-status"
	// TransitionedObjectName name of transitioned object
	TransitionedObjectName = "transitioned-object"
	// TransitionedVersionID is version of remote object
	TransitionedVersionID = "transitioned-versionID"
	// TransitionTier name of transition storage class
	TransitionTier = "transition-tier"
)

        monitor.leave();
      }
    }

    /**
     * Marks the {@link State} as ready to receive transitions. Returns true if no transitions have
     * been observed yet.
     */
    void markReady() {
      monitor.enter();
      try {
        if (!transitioned) {
          // nothing has transitioned since construction, good.
          ready = true;
        } else {

Extra metadata maintained internally in `xl.meta` for a transitioned object

```
...
        "MetaSys": {
          "x-minio-internal-transition-status": "Y29tcGxldGU=",
          "x-minio-internal-transition-tier": "R0NTVElFUjE=",

--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

      }

      /** Transition to the COMPLETED state and set the value. */
      boolean set(@Nullable V v) {
        return complete(v, null, COMPLETED);
      }

      /** Transition to the COMPLETED state and set the exception. */
      boolean setException(Throwable t) {
        return complete(null, t, COMPLETED);
      }

      /** Transition to the CANCELLED or INTERRUPTED state. */

		return toObjectErr(errMethodNotAllowed, bucket, object)
	}
	// verify that the object queued for transition is identical to that on disk.
	if !opts.MTime.Equal(fi.ModTime) || !strings.EqualFold(opts.Transition.ETag, extractETag(fi.Metadata)) {
		return toObjectErr(errFileNotFound, bucket, object)
	}
	// if object already transitioned, return
	if fi.TransitionStatus == lifecycle.TransitionComplete {
		return nil
	}

        // Test max attempts in half-open with failure scenario
        circuitBreaker.trip(); // Open again
        Thread.sleep(1100); // Wait for reset

        // First attempt transitions to HALF_OPEN
        try {
            circuitBreaker.executeWithCircuitBreaker(() -> {
                // Verify we're in HALF_OPEN
                assertEquals(State.HALF_OPEN, circuitBreaker.getState());

| `minio_cluster_ilm_transitioned_bytes`    | Total bytes transitioned to a tier.              |
| `minio_cluster_ilm_transitioned_objects`  | Total number of objects transitioned to a tier.  |
| `minio_cluster_ilm_transitioned_versions` | Total number of versions transitioned to a tier. |

## Cluster KMS Metrics

      }

      /** Transition to the COMPLETED state and set the value. */
      boolean set(@Nullable V v) {
        return complete(v, null, COMPLETED);
      }

      /** Transition to the COMPLETED state and set the exception. */
      boolean setException(Throwable t) {
        return complete(null, t, COMPLETED);
      }

      /** Transition to the CANCELLED or INTERRUPTED state. */