This document explains how to setup Prometheus and configure it to scrape data from MinIO servers.

## Prerequisites

To get started with MinIO, refer [MinIO QuickStart Document](https://min.io/docs/minio/linux/index.html#quickstart-for-linux).
Follow below steps to get started with MinIO monitoring using Prometheus.

### 1. Download Prometheus

## Quick Start

	EndTime   time.Time   `msg:"stopTs"`  // Time at which rebalance operation completed or rebalance-stop was called
	Status    rebalStatus `msg:"status"`  // Current state of rebalance operation. One of Started|Stopped|Completed|Failed.
}

// rebalanceMeta contains information pertaining to an ongoing rebalance operation.
type rebalanceMeta struct {
	cancel          context.CancelFunc `msg:"-"` // to be invoked on rebalance-stop

	globalHTTPStats = newHTTPStats()

	// Global bucket network and API statistics
	globalBucketConnStats = newBucketConnStats()
	globalBucketHTTPStats = newBucketHTTPStats()

	// Time when the server is started
	globalBootTime = UTCNow()

	globalActiveCred         auth.Credentials
	globalSiteReplicatorCred siteReplicatorCred

	// Captures if root credentials are set via ENV.
	globalCredViaEnv bool

		dctx, dcancel := context.WithCancel(ctx)
		started := time.Now()
		go func() {
			timeout := time.NewTimer(globalDriveConfig.GetMaxTimeout())
			select {
			case <-dctx.Done():
				if !timeout.Stop() {
					<-timeout.C
				}
			case <-timeout.C:
				spent := time.Since(started)
				goOffline(fmt.Errorf("unable to write+read for %v", spent.Round(time.Millisecond)), spent)

			}
		case "next":
			z.next, bts, err = msgp.ReadUint64Bytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "next")
				return
			}
		case "started":
			z.started, bts, err = msgp.ReadTimeBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "started")
				return
			}
		case "cycleCompleted":
			var zb0002 uint32
			zb0002, bts, err = msgp.ReadArrayHeaderBytes(bts)
			if err != nil {

		Code:           "XMinioAdminRebalanceAlreadyStarted",
		Description:    "Pool rebalance is already started",
		HTTPStatusCode: http.StatusConflict,
	},
	ErrAdminRebalanceNotStarted: {
		Code:           "XMinioAdminRebalanceNotStarted",
		Description:    "Pool rebalance is not started",
		HTTPStatusCode: http.StatusNotFound,
	},
	ErrMaximumExpires: {

		sha256hex = ""
	}

	var forceMD5 []byte
	// Optimization: If SSE-KMS and SSE-C did not request Content-Md5. Use uuid as etag. Optionally enable this also
	// for server that is started with `--no-compat`.
	if !etag.ContentMD5Requested(r.Header) && (crypto.S3KMS.IsEncrypted(mi.UserDefined) || crypto.SSEC.IsRequested(r.Header) || !globalServerCtxt.StrictS3Compat) {
		forceMD5 = mustGetUUIDBytes()
	}

			},
			{
				Description: MetricDescription{
					Namespace: nodeMetricNamespace,
					Subsystem: scannerSubsystem,
					Name:      "bucket_scans_started",
					Help:      "Total number of bucket scans started since server start",
					Type:      counterMetric,
				},
				Value: float64(globalScannerMetrics.lifetime(scannerMetricScanBucketDrive) + uint64(globalScannerMetrics.activeDrives())),

          },
          "exemplar": true,
          "expr": "rate(minio_node_scanner_bucket_scans_started{job=~\"$scrape_jobs\"}[$__rate_interval])",
          "interval": "1m",
          "legendFormat": "[{{server}}]",
          "refId": "A"
        }
      ],
      "title": "Bucket Scans Started",
      "type": "timeseries"
    }
  ],
  "refresh": "",
  "schemaVersion": 39,
  "tags": [