```yaml
groups:
- name: example
  rules:
  - alert: MinIOClusterTolerance
    expr: minio_cluster_health_erasure_set_status < 1
    for: 5m
    labels:
      severity: critical
    annotations:
      summary: "Instance {{ $labels.server }} has lost quorum on pool {{ $labels.pool }} on set {{ $labels.set }}"

		opts := HealthOptions{}
		result := objLayer.Health(ctx, opts)

		metrics = make([]MetricV2, 0, 2+4*len(result.ESHealth))

		metrics = append(metrics, MetricV2{
			Description: getClusterWriteQuorumMD(),
			Value:       float64(result.WriteQuorum),
		})

		health := 1
		if !result.Healthy {
			health = 0
		}

		metrics = append(metrics, MetricV2{

				epHealth.lastOnline = prev.lastOnline
				epHealth.offlineDuration = prev.offlineDuration
				epHealth.lastHCAt = prev.lastHCAt
				epHealth.latency = prev.latency
			}
			m[t.Endpoint] = epHealth
		}
	}
	// swap out the map
	sys.hc = m
	sys.hMutex.Unlock()
}

func (sys *BucketTargetSys) healthStats() map[string]epHealth {
	sys.hMutex.RLock()
	defer sys.hMutex.RUnlock()

- Liveness probe available at `/minio/health/live`
- Cluster probe available at `/minio/health/cluster`

Read more on how to use these endpoints in [MinIO healthcheck guide](https://github.com/minio/minio/blob/master/docs/metrics/healthcheck/README.md).

## Prometheus Probe

import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.SearchEngineUtil;
import org.lastaflute.di.exception.IORuntimeException;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.cluster.health.ClusterHealthStatus;
import org.opensearch.common.xcontent.XContentType;

public class PingResponse {
    private static final String CLUSTER_NAME = "cluster_name";

| `minio_cluster_health_status`                     | Get current cluster health status              |
| `minio_cluster_health_erasure_set_healing_drives` | Count of healing drives in the erasure set     |
| `minio_cluster_health_erasure_set_online_drives`  | Count of online drives in the erasure set      |
| `minio_cluster_health_erasure_set_read_quorum`    | Get read quorum of the erasure set             |

./fess-*/bin/fess > ${temp_log_file} 2>&1 &

temp_json_file=/tmp/fess-log.$$
touch ${temp_json_file}
error_count=0
while true ; do
  status=$(curl -w '%{http_code}\n' -s -o ${temp_json_file} "http://localhost:8080/api/v1/health")
  cat ${temp_json_file}
  if [[ x"${status}" = x200 ]] ; then
    break
  else
    error_count=$((error_count + 1))
  fi
  if [[ ${error_count} -ge 60 ]] ; then
    echo "Fess is not available."

	peerRESTPrefix        = minioReservedBucketPath + "/peer"
	peerRESTPath          = peerRESTPrefix + peerRESTVersionPrefix
)

const (
	peerRESTMethodHealth                = "/health"
	peerRESTMethodVerifyBinary          = "/verifybinary"
	peerRESTMethodCommitBinary          = "/commitbinary"
	peerRESTMethodStartProfiling        = "/startprofiling"

      ## You can add custom gateway ports in user values overrides, but it must include those ports since helm replaces.
      # Note that AWS ELB will by default perform health checks on the first port
      # on this list. Setting this to the health check port will ensure that health
      # checks always work. https://github.com/istio/istio/issues/12503
      - port: 15021
        targetPort: 15021
        name: status-port
        protocol: TCP

    //
    private static final Logger logger = LogManager.getLogger(AdminMaintenanceAction.class);

    private static final String[] CAT_NAMES =
            { "aliases", "allocation", "count", "fielddata", "health", "indices", "master", "nodeattrs", "nodes", "pending_tasks",
                    "plugins", "recovery", "repositories", "thread_pool", "shards", "segments", "snapshots", "templates" };