Content-Length: 0
Server: MinIO
Vary: Origin
X-Amz-Bucket-Region: us-east-1
X-Minio-Write-Quorum: 3
X-Amz-Request-Id: 16239D6AB80EBECF
X-Xss-Protection: 1; mode=block
Date: Tue, 21 Jul 2020 00:36:14 GMT
```

### Cluster-readable probe

The reply is '200 OK' if cluster has read quorum if not it returns '503 Service Unavailable'.

```
curl http://minio1:9001/minio/health/cluster/read
HTTP/1.1 503 Service Unavailable
Accept-Ranges: bytes

				err = za0002.DecodeMsg(dc)
				if err != nil {
					err = msgp.WrapError(err, "Stats", za0001)
					return
				}
				z.Stats[za0001] = za0002
			}
		case "Timestamp":
			z.Timestamp, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "Timestamp")
				return
			}
		default:
			err = dc.Skip()
			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}

			srcCtnt, srcOk = nextObject(srcCh)
			continue
		}

		if srcCtnt.Key == tgtCtnt.Key {
			if verifyChecksum(sclnt, srcSha256, tgtSha256, srcCtnt, tgtCtnt) {
				fmt.Printf("all readable source and target: %s -> %s\n", srcCtnt.Key, tgtCtnt.Key)
			}

			srcCtnt, srcOk = nextObject(srcCh)
			tgtCtnt, tgtOk = nextObject(tgtCh)
			continue
		}

		}
		switch msgp.UnsafeString(field) {
		case "end":
			z.ended, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "ended")
				return
			}
		case "st":
			z.started, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "started")
				return
			}
		case "lh":
			z.lastHandout, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "lastHandout")
				return

						// object deleted by the application, nothing to do here we move on.
						ignore = true
						stopFn(nil)
						break
					}
					if err != nil && !ignore {
						// if usage-cache.bin is not readable log and ignore it.
						if bi.Name == minioMetaBucket && strings.Contains(version.Name, dataUsageCacheName) {
							ignore = true
							stopFn(err)
							decomLogIf(ctx, err)
							break
						}
					}

				return
			}
		case "m":
			z.ScanMode, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "ScanMode")
				return
			}
		case "c":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "Cache")
					return
				}
				z.Cache = nil
			} else {
				if z.Cache == nil {
					z.Cache = new(dataUsageCache)
				}

## How to enable Fan-Out Uploads ?

					err = zb0002.Bins[zb0003].DecodeMsg(dc)
					if err != nil {
						err = msgp.WrapError(err, zb0001, "Bins", zb0003)
						return
					}
				}
			case "UpdatedAt":
				zb0002.UpdatedAt, err = dc.ReadTime()
				if err != nil {
					err = msgp.WrapError(err, zb0001, "UpdatedAt")
					return
				}
			default:
				err = dc.Skip()
				if err != nil {
					err = msgp.WrapError(err, zb0001)
					return
				}

			if err != nil {
				err = msgp.WrapError(err, "UID")
				return
			}
		case "Timestamp":
			z.Timestamp, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "Timestamp")
				return
			}
		case "TimeLastRefresh":
			z.TimeLastRefresh, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "TimeLastRefresh")
				return
			}
		case "Source":

				CreateTime: obj.ModTime, // ModTime is createTime for config history entries.
			}
			if withData {
				data, err := readConfig(ctx, objAPI, obj.Name)
				if err != nil {
					// ignore history file if not readable.
					continue
				}

				data, err = decryptData(data, obj.Name)
				if err != nil {
					// ignore history file that cannot be loaded.
					continue
				}

				cfgEntry.Data = string(data)
			}