In metrics version 3, all metrics are available under the endpoint:

```
/minio/metrics/v3
```

however, a specific path under this is required.

Metrics are organized into groups at paths **relative** to the top-level endpoint above.

## Metrics Request Handling

Each endpoint below can be queried at different intervals as needed via a scrape configuration in Prometheus or a compatible metrics collection tool.

		config.DriveSubSys:          drive.HelpDrive,
		config.CacheSubSys:          cache.Help,
		config.BrowserSubSys:        browser.Help,
	}

	config.RegisterHelpSubSys(helpMap)

	// save top-level help for deprecated sub-systems in a separate map.
	deprecatedHelpKVMap := map[string]config.HelpKV{
		config.RegionSubSys: {
			Key:         config.RegionSubSys,

import (
	"slices"
	"strings"

	"github.com/prometheus/client_golang/prometheus"
	"github.com/prometheus/client_golang/prometheus/collectors"
)

// Collector paths.
//
// These are paths under the top-level /minio/metrics/v3 metrics endpoint. Each
// of these paths returns a set of V3 metrics.
//
// Per-bucket metrics endpoints always start with /bucket and the bucket name is

					break
				}
			}
			w.CloseWithError(werr)
		}()
	}

	topEntries := make(metaCacheEntries, len(readers))
	errs := make([]error, len(readers))
	for {
		// Get the top entry from each
		var current metaCacheEntry
		var atEOF, fnf, vnf, hasErr, agree int
		for i := range topEntries {
			topEntries[i] = metaCacheEntry{}
		}
		if contextCanceled(ctx) {
			return ctx.Err()

	dataScannerForceCompactAtFolders = 1_000_000                        // Compact when this many subfolders in a single folder (even top level).
	dataScannerStartDelay            = 1 * time.Minute                  // Time to wait on startup and between cycles.

	healDeleteDangling   = true

	// we wrap the underlying error, make sure when you
	// are modifying this code that you do so, if and when
	// you want to add extra context to your error. This
	// ensures top level retry works accordingly.

	// Initialize config system.
	if err := globalConfigSys.Init(newObject); err != nil {
		if configRetriableErrors(err) {
			return fmt.Errorf("Unable to initialize config system: %w", err)