return setCounts[i] < setCounts[j]
	})

	return setCounts
}

// getSetIndexes returns list of indexes which provides the set size
// on each index, this function also determines the final set size
// The final set size has the affinity towards choosing smaller
// indexes (total sets)

		Cache:    &cache,
	})
	if err != nil {
		return cache, toStorageErr(err)
	}
	var final *dataUsageCache
	err = st.Results(func(resp *nsScannerResp) error {
		if resp.Update != nil {
			select {
			case <-ctx.Done():
			case updates <- *resp.Update:
			}
		}
		if resp.Final != nil {
			final = resp.Final
		}
		// We can't reuse the response since it is sent upstream.
		return nil
	})

	for _, sum := range e.Checksums {
		if sum.PartNumber == partNumber {
			// Return the checksum
			return sum
		}
	}
	return ChecksumInfo{Algorithm: DefaultBitrotAlgorithm}
}

// ShardFileSize - returns final erasure size from original size.
func (e ErasureInfo) ShardFileSize(totalLength int64) int64 {
	if totalLength == 0 {
		return 0
	}
	if totalLength == -1 {
		return -1
	}
	numShards := totalLength / e.BlockSize

		}

		// Collect API stats using the API name got from reflection in
		// `getHandlerName`.
		statsCollectedHandler := collectAPIStats(handlerName, throttledHandler)

		// Call the final handler.
		statsCollectedHandler(w, r)
	}

	return handler
}

// registerAPIRouter - registers S3 compatible APIs.
func registerAPIRouter(router *mux.Router) {
	// Initialize API.

	service := sumHMAC(region, []byte(string(serviceS3)))
	signingKey := sumHMAC(service, []byte("aws4_request"))

	signature := hex.EncodeToString(sumHMAC(signingKey, []byte(stringToSign)))

	// final Authorization header
	parts := []string{
		"AWS4-HMAC-SHA256" + " Credential=" + accessKey + SlashSeparator + scope,
		"SignedHeaders=" + signedHeaders,
		"Signature=" + signature,
	}

	// Close the saverQuitCh - this also triggers saving in-memory state
	// immediately one last time before we exit this method.
	xioutil.SafeClose(saverQuitCh)

	// Notify expire jobs final status to the configured endpoint
	buf, _ := json.Marshal(ri)
	if err := r.Notify(context.Background(), bytes.NewReader(buf)); err != nil {
		batchLogIf(context.Background(), fmt.Errorf("unable to notify %v", err))
	}

		// Apply http tracing "middleware" based on presence of flag.
		var f2 http.HandlerFunc
		if handlerFlags.Has(traceAllFlag) {
			f2 = httpTraceAll(f)
		} else {
			f2 = httpTraceHdrs(f)
		}

		// call the final handler
		f2(w, r)
	}

	// Enable compression of responses based on presence of flag.
	if !handlerFlags.Has(noGZFlag) {
		handler = gzipHandler(handler)
	}

	return handler
}

	}

	// get random bucket name.
	bucketName := getRandomBucketName()

	// Key specified in Form data
	keyName := "test/object"

	var opts ObjectOptions

	// The final name of the upload object
	targetObj := keyName + "/upload.txt"

	// The url of success_action_redirect field
	redirectURL, err := url.Parse("http://www.google.com?query=value")
	if err != nil {
		t.Fatal(err)

//   - Return an error when a pool cannot return N/2+1 valid bucket information
//   - For each pool, check if the bucket exists in N/2+1 nodes before including it in the final result
func (sys *S3PeerSys) ListBuckets(ctx context.Context, opts BucketOptions) ([]BucketInfo, error) {
	g := errgroup.WithNErrs(len(sys.peerClients))

	nodeBuckets := make([][]BucketInfo, len(sys.peerClients))

	DiskID   string `msg:"id"`
	Volume   string `msg:"v"`
	FilePath string `msg:"fp"`
	Buf      []byte `msg:"b"`
}

// RenameDataResp - RenameData()'s response.
// Provides information about the final state of Rename()
//   - on xl.meta (array of versions) on disk to check for version disparity
//   - on rewrite dataDir on disk that must be additionally purged
//     only after as a 2-phase call, allowing the older dataDir to