if !s.checkID(params.DiskID) {
		return grid.NewRemoteErr(errDiskNotFound)
	}
	if params.Cache == nil {
		return grid.NewRemoteErrString("NSScannerHandler: provided cache is nil")
	}

	// Collect updates, stream them before the full cache is sent.
	updates := make(chan dataUsageEntry, 1)
	var wg sync.WaitGroup
	wg.Add(1)
	go func() {
		defer wg.Done()

}

func runDNSCache(ctx *cli.Context) {
	dnsTTL := ctx.Duration("dns-cache-ttl")
	// Check if we have configured a custom DNS cache TTL.
	if dnsTTL <= 0 {
		if orchestrated {
			dnsTTL = 30 * time.Second
		} else {
			dnsTTL = 10 * time.Minute
		}
	}

	// Call to refresh will refresh names in cache.
	go func() {
		// Baremetal setups set DNS refresh window up to dnsTTL duration.

					if filterLifecycle(bi.Name, version.Name, version) {
						continue
					}

					// `.usage-cache.bin` still exists, must be not readable ignore it.
					if bi.Name == minioMetaBucket && strings.Contains(version.Name, dataUsageCacheName) {
						// skipping bucket usage cache name, as its autogenerated.
						continue
					}

					versionsFound++
				}
			}); err != nil {

	"acl",
	"cors",
	"delete",
	"encryption",
	"legal-hold",
	"lifecycle",
	"location",
	"logging",
	"notification",
	"partNumber",
	"policy",
	"requestPayment",
	"response-cache-control",
	"response-content-disposition",
	"response-content-encoding",
	"response-content-language",
	"response-content-type",
	"response-expires",
	"retention",
	"select",
	"select-type",
	"tagging",

	workers *ActiveWorkerStat
	// queue stats cache
	qCache queueCache

	pCache proxyStatsCache
	// mrf backlog stats
	mrfStats ReplicationMRFStats
	// for bucket replication, continue to use existing cache
	Cache             map[string]*BucketReplicationStats
	mostRecentStats   BucketStatsMap
	registry          metrics.Registry
	sync.RWMutex                 // mutex for Cache
	mostRecentStatsMu sync.Mutex // mutex for mostRecentStats

func isValidLocation(location string) bool {
	return globalSite.Region == "" || globalSite.Region == location
}

// Supported headers that needs to be extracted.
var supportedHeaders = []string{
	"content-type",
	"cache-control",
	"content-language",
	"content-encoding",
	"content-disposition",
	"x-amz-storage-class",
	xhttp.AmzStorageClass,
	xhttp.AmzObjectTagging,
	"expires",
	xhttp.AmzBucketReplicationStatus,

	}
	data := ListVersionsResponse{}
	var lastObjMetaName string
	var tagErr, metaErr APIErrorCode = -1, -1

	for _, object := range resp.Objects {
		if object.Name == "" {
			continue
		}
		// Cache checks for the same object
		if metadata != nil && lastObjMetaName != object.Name {
			tagErr = metadata(object.Name, policy.GetObjectTaggingAction)
			metaErr = metadata(object.Name, policy.GetObjectAction)

| `minio_node_mem_buffers_max`   | Buffers memory on the node (max).         |
| `minio_node_mem_cache`         | Cache memory on the node.                 |
| `minio_node_mem_cache_avg`     | Cache memory on the node (avg).           |
| `minio_node_mem_cache_max`     | Cache memory on the node (max).           |
| `minio_node_mem_free`          | Free memory on the node.                  |

| `minio_system_memory_total`      | `gauge` | Total memory on the node           | `server` |
| `minio_system_memory_buffers`    | `gauge` | Buffers memory on the node         | `server` |
| `minio_system_memory_cache`      | `gauge` | Cache memory on the node           | `server` |
| `minio_system_memory_shared`     | `gauge` | Shared memory on the node          | `server` |

		IsLatest:       true,
		Deleted:        false,
		ExpireRestored: false,
		DataDir:        "4a01d9dd-0c5e-4103-88f8-b307c57d212e",
		XLV1:           false,
		ModTime:        time.Date(2023, time.March, 15, 11, 18, 4, 989906961, time.UTC),
		Size:           329289, Mode: 0x0, WrittenByVersion: 0x63c77756,
		Metadata: map[string]string{