newSetCounts[ss] = struct{}{}
		}
	}

	setCounts = []uint64{}
	for setCount := range newSetCounts {
		setCounts = append(setCounts, setCount)
	}

	// Not necessarily needed but it ensures to the readers
	// eyes that we prefer a sorted setCount slice for the
	// subsequent function to figure out the right common
	// divisor, it avoids loops.
	sort.Slice(setCounts, func(i, j int) bool {

	bucket := ri.Bucket
	object := ri.Name

	// set defaults for replication action based on operation being performed - actual
	// replication action can only be determined after stat on remote. This default is
	// needed for updating replication metrics correctly when target is offline.
	rAction := replicateMetadata

	rinfo = replicatedTargetInfo{
		Size:                  ri.ActualSize,
		Arn:                   tgt.ARN,

// http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-query-string-auth.html.
func preSignV4(req *http.Request, accessKeyID, secretAccessKey string, expires int64) error {
	// Presign is not needed for anonymous credentials.
	if accessKeyID == "" || secretAccessKey == "" {
		return errors.New("Presign cannot be generated without access and secret keys")
	}

	region := globalSite.Region
	date := UTCNow()

		// replication configuration type (by converting to xml and
		// parsing it back), use minio-go's add rule function, and
		// finally convert it back to the server type (again via xml).
		// This is needed as there is no add-rule function in the server
		// yet.

		// Though we do not check if the rule already exists, this is
		// not a problem as we are always using the same replication

	if err = disk.RenameFile(context.TODO(), minioMetaBucket, tmpFormat, minioMetaBucket, formatConfigFile); err != nil {
		return err
	}

	disk.SetDiskID(format.Erasure.This)
	if healID != "" {
		ctx := context.Background()
		ht := initHealingTracker(disk, healID)
		return ht.save(ctx)
	}
	return nil
}

// loadFormatErasure - loads format.json from disk.

	if err := meta.load(ctx, z.serverPools[0], z.serverPools); err != nil {
		return err
	}

	update, err := meta.validate(z.serverPools)
	if err != nil {
		return err
	}

	// if no update is needed return right away.
	if !update {
		z.poolMetaMutex.Lock()
		z.poolMeta = meta
		z.poolMetaMutex.Unlock()
	} else {
		newMeta := newPoolMeta(z, meta)
		if err = newMeta.save(ctx, z.serverPools); err != nil {

	}

	return r, nil
}

func (z *erasureServerPools) HealBucket(ctx context.Context, bucket string, opts madmin.HealOpts) (madmin.HealResultItem, error) {
	// .metadata.bin healing is not needed here, it is automatically healed via read() call.
	return z.s3Peer.HealBucket(ctx, bucket, opts)
}

// Walk a bucket, optionally prefix recursively, until we have returned
// all the contents of the provided bucket+prefix.

	// Print the error message: the following code takes care
	// of splitting error text and always pretty printing the
	// red banner along with the error message. Since the error
	// message itself contains some colored text, we needed
	// to use some ANSI control escapes to cursor color state
	// and freely move in the screen.
	for _, line := range strings.Split(errMsg, "\n") {
		if len(line) == 0 {
			// No more text to print, just quit.

				errFileCorrupt,
			) {
				missingBlocks++
			}
		}

		// if missing metadata can be reconstructed, attempt to reconstruct.
		// additionally do not heal delete markers inline, let them be
		// healed upon regular heal process.
		if missingBlocks > 0 && missingBlocks < fi.Erasure.DataBlocks {
			globalMRFState.addPartialOp(partialOperation{
				bucket:    fi.Volume,
				object:    fi.Name,
				versionID: fi.VersionID,

					// this basically means that we do not have the Data for the object
					// cached yet
					update = true
				})
				if !update {
					// No update is needed means we have written already to the client just return here.
					return
				}
			}
		}

		if errors.Is(err, cache.ErrKeyMissing) {
			update = true
		}
	}